/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* GTK - The GIMP Toolkit
* Copyright ( C ) 1995 - 1997 Peter Mattis , Spencer Kimball and Josh MacDonald
* Copyright ( C ) 2004 - 2006 Christian Hammond
* Copyright ( C ) 2008 Cody Russell
* Copyright ( C ) 2008 Red Hat , Inc .
*
* This library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2 of the License , or ( at your option ) any later version .
*
* This library is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library . If not , see < http : //www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtktextprivate.h"
#include "gtkaccessibletextprivate.h"
#include "gtkactionable.h"
#include "gtkactionmuxerprivate.h"
#include "gtkadjustment.h"
#include "gtkbox.h"
#include "gtkbutton.h"
#include "gtkdebug.h"
#include "gtkdragicon.h"
#include "gtkdragsourceprivate.h"
#include "gtkdroptarget.h"
#include "gtkeditable.h"
#include "gtkemojichooser.h"
#include "gtkemojicompletionprivate.h"
#include "gtkentrybuffer.h"
#include "gtkeventcontrollerfocus.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollermotion.h"
#include "gtkgestureclick.h"
#include "gtkgesturedrag.h"
#include "gtkgesturelongpress.h"
#include "gtkgesturesingle.h"
#include "gtkimageprivate.h"
#include "gtkimcontextsimple.h"
#include "gtkimmulticontext.h"
#include "gtkjoinedmenuprivate.h"
#include "gtklabel.h"
#include "gtkmagnifierprivate.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtknative.h"
#include "gtkpangoprivate.h"
#include "gtkpopovermenu.h"
#include "gtkprivate.h"
#include "gtkrenderbackgroundprivate.h"
#include "gtkrenderborderprivate.h"
#include "gtkrenderlayoutprivate.h"
#include "gtksettings.h"
#include "gtkshortcuttrigger.h"
#include "gtksnapshot.h"
#include "gtktexthandleprivate.h"
#include "gtktexthistoryprivate.h"
#include "gtktextutilprivate.h"
#include "gtktooltip.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkwindow.h"
#include "deprecated/gtkrender.h"
#include "a11y/gtkatspipangoprivate.h"
#include <string.h>
#include <cairo-gobject.h>
#include <glib/gi18n-lib.h>
/**
* GtkText :
*
* A single - line text entry .
*
* ` GtkText ` is the common implementation of single - line text editing
* that is shared between [ class @ Gtk . Entry ] , [ class @ Gtk . PasswordEntry ] ,
* [ class @ Gtk . SpinButton ] , and other widgets . In all of these , a ` GtkText `
* instance is used as the delegate for the [ iface @ Gtk . Editable ] implementation .
*
* A large number of key bindings s supported by default . If the entered
* text is longer than the allocation of the widget , the widget will scroll
* so that the cursor position is visible .
*
* When using an entry for passwords and other sensitive information ,
* it can be put into “ password mode ” using [ method @ Gtk . Text . set_visibility ] .
* In this mode , entered text is displayed using an “ invisible ” character .
* By default , GTK picks the best invisible character that is available
* in the current font , but it can be changed with
* [ method @ Gtk . Text . set_invisible_char ] .
*
* If you want to add icons or progress display in an entry , look at
* [ class @ Gtk . Entry ] . There are other alternatives for more specialized
* use cases , such as [ class @ Gtk . SearchEntry ] .
*
* If you need multi - line editable text , use [ class @ Gtk . TextView ] .
*
* # Shortcuts and Gestures
*
* ` GtkText ` supports the following keyboard shortcuts :
*
* - < kbd > Shift < / kbd > + < kbd > F10 < / kbd > or < kbd > Menu < / kbd > opens the context menu .
* - < kbd > Ctrl < / kbd > + < kbd > A < / kbd > or < kbd > Ctrl < / kbd > + < kbd > & sol ; < / kbd >
* selects all the text .
* - < kbd > Ctrl < / kbd > + < kbd > Shift < / kbd > + < kbd > A < / kbd > or
* < kbd > Ctrl < / kbd > + < kbd > & bsol ; < / kbd > unselects all .
* - < kbd > Ctrl < / kbd > + < kbd > Z < / kbd > undoes the last modification .
* - < kbd > Ctrl < / kbd > + < kbd > Y < / kbd > or < kbd > Ctrl < / kbd > + < kbd > Shift < / kbd > + < kbd > Z < / kbd >
* redoes the last undone modification .
* - < kbd > Ctrl < / kbd > + < kbd > Shift < / kbd > + < kbd > T < / kbd > toggles the text direction .
* - < kbd > Clear < / kbd > clears the content .
*
* Additionally , the following signals have default keybindings :
*
* - [ signal @ Gtk . Text : : activate ]
* - [ signal @ Gtk . Text : : backspace ]
* - [ signal @ Gtk . Text : : copy - clipboard ]
* - [ signal @ Gtk . Text : : cut - clipboard ]
* - [ signal @ Gtk . Text : : delete - from - cursor ]
* - [ signal @ Gtk . Text : : insert - emoji ]
* - [ signal @ Gtk . Text : : move - cursor ]
* - [ signal @ Gtk . Text : : paste - clipboard ]
* - [ signal @ Gtk . Text : : toggle - overwrite ]
*
* # Actions
*
* ` GtkText ` defines a set of built - in actions :
*
* - ` clipboard . copy ` copies the contents to the clipboard .
* - ` clipboard . cut ` copies the contents to the clipboard and deletes it from
* the widget .
* - ` clipboard . paste ` inserts the contents of the clipboard into the widget .
* - ` menu . popup ` opens the context menu .
* - ` misc . insert - emoji ` opens the Emoji chooser .
* - ` misc . toggle - visibility ` toggles the ` GtkText ` : visibility property .
* - ` misc . toggle - direction ` toggles the text direction .
* - ` selection . delete ` deletes the current selection .
* - ` selection . select - all ` selects all of the widgets content .
* - ` text . redo ` redoes the last change to the contents .
* - ` text . undo ` undoes the last change to the contents .
* - ` text . clear ` removes all content .
*
* # CSS nodes
*
* ` ` `
* text [ . read - only ]
* ├ ─ ─ placeholder
* ├ ─ ─ undershoot . left
* ├ ─ ─ undershoot . right
* ├ ─ ─ [ selection ]
* ├ ─ ─ [ block - cursor ]
* ├ ─ ─ [ cursor - handle [ . top / . bottom ] [ . insertion - cursor ] ]
* ├ ─ ─ [ preedit [ . whole ] [ . selection ] [ . prediction ] [ . prefix / . suffix ] [ . spelling - error ] [ . compose - error ] ]
* ╰ ─ ─ [ window . popup ]
* ` ` `
*
* ` GtkText ` has a main node with the name ` text ` . Depending on the properties
* of the widget , the ` . read - only ` style class may appear .
*
* When the entry has a selection , it adds a subnode with the name ` selection ` .
*
* When the entry is in overwrite mode , it adds a subnode with the name
* ` block - cursor ` that determines how the block cursor is drawn .
*
* The CSS node for a context menu is added as a subnode with the name ` popup ` .
*
* The ` undershoot ` nodes are used to draw the underflow indication when content
* is scrolled out of view . These nodes get the ` . left ` or ` . right ` style class
* added depending on where the indication is drawn .
*
* When touch is used and touch selection handles are shown , they are using
* CSS nodes with name ` cursor - handle ` . They get the ` . top ` or ` . bottom ` style
* class depending on where they are shown in relation to the selection . If
* there is just a single handle for the text cursor , it gets the style class
* ` . insertion - cursor ` .
*
* If using an input method with a pre - edit buffer , this string will be styled
* with the ` preedit ` CSS node , the different style classes express the possible
* roles of a piece of text in the pre - edit buffer :
*
* - ` . whole ` denotes the parts of the pre - edit buffer without a special role
* - ` . selection ` , ` . prefix ` and ` . suffix ` style classes will be used to
* highlight the specific portions of the pre - edit buffer being edited and its
* surroundings
* - ` . prediction ` will be used for parts of the pre - edit buffer not typed by the
* user ( e . g . autocompletion )
* - ` . spelling - error ` and ` . compose - error ` will be respectively used to indicate
* errors in spelling or character composition ( e . g . non - existent transliterations ) .
*
* # Accessibility
*
* ` GtkText ` uses the [ enum @ Gtk . AccessibleRole . none ] role , which causes it to be
* skipped for accessibility . This is because ` GtkText ` is expected to be used
* as a delegate for a ` GtkEditable ` implementation that will be represented
* to accessibility .
*/
#define NAT_ENTRY_WIDTH 150
#define UNDERSHOOT_SIZE 20
#define DEFAULT_MAX_UNDO 200
static GQuark quark_password_hint = 0 ;
enum
{
TEXT_HANDLE_CURSOR,
TEXT_HANDLE_SELECTION_BOUND,
TEXT_HANDLE_N_HANDLES
};
typedef struct _GtkTextPasswordHint GtkTextPasswordHint;
typedef struct _GtkTextPrivate GtkTextPrivate;
struct _GtkTextPrivate
{
GtkEntryBuffer *buffer;
GtkIMContext *im_context;
int text_baseline;
PangoLayout *cached_layout;
PangoAttrList *attrs;
PangoTabArray *tabs;
GdkContentProvider *selection_content;
char *im_module;
GtkWidget *emoji_completion;
GtkTextHandle *text_handles[TEXT_HANDLE_N_HANDLES];
GtkWidget *selection_bubble;
guint selection_bubble_timeout_id;
GtkWidget *magnifier_popover;
GtkWidget *magnifier;
GtkWidget *placeholder;
GtkGesture *drag_gesture;
GtkEventController *key_controller;
GtkEventController *focus_controller;
GtkCssNode *selection_node;
GtkCssNode *block_cursor_node;
GtkCssNode *undershoot_node[2 ];
GtkWidget *popup_menu;
GMenuModel *extra_menu;
GtkTextHistory *history;
GdkDrag *drag;
GtkWidget *input_interceptor;
GtkEventController *key_capture;
float xalign;
int ascent; /* font ascent in pango units */
int current_pos;
int descent; /* font descent in pango units */
int dnd_position; /* In chars, -1 == no DND cursor */
int drag_start_x;
int drag_start_y;
int insert_pos;
int selection_bound;
int scroll_offset;
int width_chars;
int max_width_chars;
guint32 obscured_cursor_timestamp;
gunichar invisible_char;
guint64 blink_start_time;
guint blink_tick;
float cursor_alpha;
guint16 preedit_length; /* length of preedit string, in bytes */
guint16 preedit_length_c; /* length of preedit string, in chars */
guint16 preedit_cursor; /* offset of cursor within preedit string, in chars */
gint64 handle_place_time;
guint editable : 1 ;
guint enable_emoji_completion : 1 ;
guint in_drag : 1 ;
guint overwrite_mode : 1 ;
guint visible : 1 ;
guint activates_default : 1 ;
guint cache_includes_preedit : 1 ;
guint change_count : 8 ;
guint in_click : 1 ; /* Flag so we don't select all when clicking in entry to focus in */
guint invisible_char_set : 1 ;
guint mouse_cursor_obscured : 1 ;
guint need_im_reset : 1 ;
guint real_changed : 1 ;
guint resolved_dir : 4 ; /* PangoDirection */
guint select_words : 1 ;
guint select_lines : 1 ;
guint truncate_multiline : 1 ;
guint cursor_handle_dragged : 1 ;
guint selection_handle_dragged : 1 ;
guint populate_all : 1 ;
guint propagate_text_width : 1 ;
guint text_handles_enabled : 1 ;
guint enable_undo : 1 ;
};
struct _GtkTextPasswordHint
{
int position; /* Position (in text) of the last password hint */
guint source_id; /* Timeout source id */
};
enum {
ACTIVATE,
MOVE_CURSOR,
INSERT_AT_CURSOR,
DELETE_FROM_CURSOR,
BACKSPACE,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
TOGGLE_OVERWRITE,
PREEDIT_CHANGED,
INSERT_EMOJI,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_BUFFER,
PROP_MAX_LENGTH,
PROP_VISIBILITY,
PROP_INVISIBLE_CHAR,
PROP_INVISIBLE_CHAR_SET,
PROP_ACTIVATES_DEFAULT,
PROP_SCROLL_OFFSET,
PROP_TRUNCATE_MULTILINE,
PROP_OVERWRITE_MODE,
PROP_IM_MODULE,
PROP_PLACEHOLDER_TEXT,
PROP_INPUT_PURPOSE,
PROP_INPUT_HINTS,
PROP_ATTRIBUTES,
PROP_TABS,
PROP_ENABLE_EMOJI_COMPLETION,
PROP_PROPAGATE_TEXT_WIDTH,
PROP_EXTRA_MENU,
NUM_PROPERTIES
};
static GParamSpec *text_props[NUM_PROPERTIES] = { NULL, };
static guint signals[LAST_SIGNAL] = { 0 };
typedef enum {
CURSOR_STANDARD,
CURSOR_DND
} CursorType;
typedef enum
{
DISPLAY_NORMAL, /* The text is being shown */
DISPLAY_INVISIBLE, /* In invisible mode, text replaced by (eg) bullets */
DISPLAY_BLANK /* In invisible mode, nothing shown at all */
} DisplayMode;
/* GObject methods
*/
static void gtk_text_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_text_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_text_notify (GObject *object,
GParamSpec *pspec);
static void gtk_text_finalize (GObject *object);
static void gtk_text_dispose (GObject *object);
/* GtkWidget methods
*/
static void gtk_text_realize (GtkWidget *widget);
static void gtk_text_unrealize (GtkWidget *widget);
static void gtk_text_map (GtkWidget *widget);
static void gtk_text_unmap (GtkWidget *widget);
static void gtk_text_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline);
static void gtk_text_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline);
static void gtk_text_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot);
static void gtk_text_focus_changed (GtkEventControllerFocus *focus,
GParamSpec *pspec,
GtkWidget *widget);
static gboolean gtk_text_grab_focus (GtkWidget *widget);
static void gtk_text_css_changed (GtkWidget *widget,
GtkCssStyleChange *change);
static void gtk_text_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir);
static void gtk_text_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state);
static gboolean gtk_text_drag_drop (GtkDropTarget *dest,
const GValue *value,
double x,
double y,
GtkText *text);
static gboolean gtk_text_drag_accept (GtkDropTarget *dest,
GdkDrop *drop,
GtkText *self);
static GdkDragAction gtk_text_drag_motion (GtkDropTarget *dest,
double x,
double y,
GtkText *text);
static void gtk_text_drag_leave (GtkDropTarget *dest,
GtkText *text);
/* GtkEditable method implementations
*/
static void gtk_text_editable_init (GtkEditableInterface *iface);
static void gtk_text_insert_text (GtkText *self,
const char *text,
int length,
int *position);
static void gtk_text_delete_text (GtkText *self,
int start_pos,
int end_pos);
static void gtk_text_delete_selection (GtkText *self);
static void gtk_text_set_selection_bounds (GtkText *self,
int start,
int end);
static gboolean gtk_text_get_selection_bounds (GtkText *self,
int *start,
int *end);
static void gtk_text_set_editable (GtkText *self,
gboolean is_editable);
static void gtk_text_set_text (GtkText *self,
const char *text);
static void gtk_text_set_width_chars (GtkText *self,
int n_chars);
static void gtk_text_set_max_width_chars (GtkText *self,
int n_chars);
static void gtk_text_set_alignment (GtkText *self,
float xalign);
static void gtk_text_set_enable_undo (GtkText *self,
gboolean enable_undo);
static void gtk_text_set_input_interceptor (GtkText *self,
GtkWidget *widget);
static GtkWidget * gtk_text_get_input_interceptor (GtkText *self);
/* Default signal handlers
*/
static GMenuModel *gtk_text_get_menu_model (GtkText *self);
static void gtk_text_popup_menu (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_move_cursor (GtkText *self,
GtkMovementStep step,
int count,
gboolean extend);
static void gtk_text_insert_at_cursor (GtkText *self,
const char *str);
static void gtk_text_delete_from_cursor (GtkText *self,
GtkDeleteType type,
int count);
static void gtk_text_backspace (GtkText *self);
static void gtk_text_cut_clipboard (GtkText *self);
static void gtk_text_copy_clipboard (GtkText *self);
static void gtk_text_paste_clipboard (GtkText *self);
static void gtk_text_toggle_overwrite (GtkText *self);
static void gtk_text_insert_emoji (GtkText *self);
static gboolean gtk_text_select_all (GtkText *self);
static void gtk_text_real_activate (GtkText *self);
/* IM Context Callbacks
*/
static void gtk_text_commit_cb (GtkIMContext *context,
const char *str,
GtkText *self);
static void gtk_text_preedit_start_cb (GtkIMContext *context,
GtkText *self);
static void gtk_text_preedit_changed_cb (GtkIMContext *context,
GtkText *self);
static gboolean gtk_text_retrieve_surrounding_cb (GtkIMContext *context,
GtkText *self);
static gboolean gtk_text_delete_surrounding_cb (GtkIMContext *context,
int offset,
int n_chars,
GtkText *self);
/* Entry buffer signal handlers
*/
static void buffer_inserted_text (GtkEntryBuffer *buffer,
guint position,
const char *chars,
guint n_chars,
GtkText *self);
static void buffer_deleted_text (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self);
static void buffer_notify_text (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self);
static void buffer_notify_max_length (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self);
/* Event controller callbacks
*/
static void gtk_text_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkText *self);
static void gtk_text_click_gesture_pressed (GtkGestureClick *gesture,
int n_press,
double x,
double y,
GtkText *self);
static void gtk_text_click_gesture_released (GtkGestureClick *gesture,
int n_press,
double x,
double y,
GtkText *self);
static void gtk_text_long_press_gesture_pressed (GtkGestureLongPress *gesture,
double x,
double y,
GtkText *self);
static void gtk_text_drag_gesture_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self);
static void gtk_text_drag_gesture_end (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self);
static gboolean gtk_text_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkText *self);
/* GtkTextHandle handlers */
static void gtk_text_handle_drag_started (GtkTextHandle *handle,
GtkText *self);
static void gtk_text_handle_dragged (GtkTextHandle *handle,
int x,
int y,
GtkText *self);
static void gtk_text_handle_drag_finished (GtkTextHandle *handle,
GtkText *self);
/* Internal routines
*/
static void gtk_text_draw_text (GtkText *self,
GtkSnapshot *snapshot);
static void gtk_text_draw_cursor (GtkText *self,
GtkSnapshot *snapshot,
CursorType type);
static PangoLayout *gtk_text_ensure_layout (GtkText *self,
gboolean include_preedit);
static void gtk_text_reset_layout (GtkText *self);
static void gtk_text_recompute (GtkText *self);
static int gtk_text_find_position (GtkText *self,
int x);
static void gtk_text_get_cursor_locations (GtkText *self,
int *strong_x,
int *weak_x);
static void gtk_text_adjust_scroll (GtkText *self);
static int gtk_text_move_visually (GtkText *editable,
int start,
int count);
static int gtk_text_move_logically (GtkText *self,
int start,
int count);
static int gtk_text_move_forward_word (GtkText *self,
int start,
gboolean allow_whitespace);
static int gtk_text_move_backward_word (GtkText *self,
int start,
gboolean allow_whitespace);
static void gtk_text_delete_whitespace (GtkText *self);
static void gtk_text_select_word (GtkText *self);
static void gtk_text_select_line (GtkText *self);
static void gtk_text_paste (GtkText *self,
GdkClipboard *clipboard);
static void gtk_text_update_primary_selection (GtkText *self);
static void gtk_text_schedule_im_reset (GtkText *self);
static gboolean gtk_text_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
static void gtk_text_check_cursor_blink (GtkText *self);
static void remove_blink_timeout (GtkText *self);
static void gtk_text_pend_cursor_blink (GtkText *self);
static void gtk_text_reset_blink_time (GtkText *self);
static void gtk_text_update_cached_style_values(GtkText *self);
static gboolean get_middle_click_paste (GtkText *self);
static void gtk_text_get_scroll_limits (GtkText *self,
int *min_offset,
int *max_offset);
static GtkEntryBuffer *get_buffer (GtkText *self);
static void set_text_cursor (GtkWidget *widget);
static void update_placeholder_visibility (GtkText *self);
static void buffer_connect_signals (GtkText *self);
static void buffer_disconnect_signals (GtkText *self);
static void gtk_text_selection_bubble_popup_set (GtkText *self);
static void gtk_text_selection_bubble_popup_unset (GtkText *self);
static void begin_change (GtkText *self);
static void end_change (GtkText *self);
static void emit_changed (GtkText *self);
static void gtk_text_update_history (GtkText *self);
static void gtk_text_update_clipboard_actions (GtkText *self);
static void gtk_text_update_emoji_action (GtkText *self);
static void gtk_text_update_clear_action (GtkText *self);
static void gtk_text_update_handles (GtkText *self);
static void gtk_text_activate_clipboard_cut (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_clipboard_copy (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_clipboard_paste (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_selection_delete (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_selection_select_all (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_clear (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_misc_toggle_direction (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_misc_insert_emoji (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_real_undo (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_real_redo (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_history_change_state_cb (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo);
static void gtk_text_history_insert_cb (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len);
static void gtk_text_history_delete_cb (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len);
static void gtk_text_history_select_cb (gpointer funcs_data,
int selection_insert,
int selection_bound);
/* GtkTextContent implementation
*/
#define GTK_TYPE_TEXT_CONTENT (gtk_text_content_get_type ())
#define GTK_TEXT_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_CONTENT, GtkTextContent))
#define GTK_IS_TEXT_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_CONTENT))
#define GTK_TEXT_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_CONTENT, GtkTextContentClass))
#define GTK_IS_TEXT_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_CONTENT))
#define GTK_TEXT_CONTENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_CONTENT, GtkTextContentClass))
typedef struct _GtkTextContent GtkTextContent;
typedef struct _GtkTextContentClass GtkTextContentClass;
struct _GtkTextContent
{
GdkContentProvider parent;
GtkText *self;
};
struct _GtkTextContentClass
{
GdkContentProviderClass parent_class;
};
GType gtk_text_content_get_type (void ) G_GNUC_CONST;
G_DEFINE_TYPE (GtkTextContent, gtk_text_content, GDK_TYPE_CONTENT_PROVIDER)
static GdkContentFormats *
gtk_text_content_ref_formats (GdkContentProvider *provider)
{
return gdk_content_formats_new_for_gtype (G_TYPE_STRING);
}
static gboolean
gtk_text_content_get_value (GdkContentProvider *provider,
GValue *value,
GError **error)
{
GtkTextContent *content = GTK_TEXT_CONTENT (provider);
if (G_VALUE_HOLDS (value, G_TYPE_STRING))
{
int start, end;
if (gtk_text_get_selection_bounds (content->self, &start, &end))
{
char *str = gtk_text_get_display_text (content->self, start, end);
g_value_take_string (value, str);
}
return TRUE ;
}
return GDK_CONTENT_PROVIDER_CLASS (gtk_text_content_parent_class)->get_value (provider, value, error);
}
static void
gtk_text_content_detach (GdkContentProvider *provider,
GdkClipboard *clipboard)
{
GtkTextContent *content = GTK_TEXT_CONTENT (provider);
int current_pos, selection_bound;
gtk_text_get_selection_bounds (content->self, ¤t_pos, &selection_bound);
gtk_text_set_selection_bounds (content->self, current_pos, current_pos);
}
static void
gtk_text_content_class_init (GtkTextContentClass *class )
{
GdkContentProviderClass *provider_class = GDK_CONTENT_PROVIDER_CLASS (class );
provider_class->ref_formats = gtk_text_content_ref_formats;
provider_class->get_value = gtk_text_content_get_value;
provider_class->detach_clipboard = gtk_text_content_detach;
}
static void
gtk_text_content_init (GtkTextContent *content)
{
}
/* GtkText
*/
static const GtkTextHistoryFuncs history_funcs = {
gtk_text_history_change_state_cb,
gtk_text_history_insert_cb,
gtk_text_history_delete_cb,
gtk_text_history_select_cb,
};
static void gtk_text_accessible_text_init (GtkAccessibleTextInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkText, gtk_text, GTK_TYPE_WIDGET,
G_ADD_PRIVATE (GtkText)
G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, gtk_text_editable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_ACCESSIBLE_TEXT,
gtk_text_accessible_text_init))
static void
add_move_binding (GtkWidgetClass *widget_class,
guint keyval,
guint modmask,
GtkMovementStep step,
int count)
{
gtk_widget_class_add_binding_signal (widget_class,
keyval, modmask,
"move-cursor" ,
"(iib)" , step, count, FALSE );
/* Selection-extending version */
gtk_widget_class_add_binding_signal (widget_class,
keyval, modmask | GDK_SHIFT_MASK,
"move-cursor" ,
"(iib)" , step, count, TRUE );
}
static void
gtk_text_class_init (GtkTextClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class );
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class );
GtkShortcut *shortcut;
gobject_class->dispose = gtk_text_dispose;
gobject_class->finalize = gtk_text_finalize;
gobject_class->set_property = gtk_text_set_property;
gobject_class->get_property = gtk_text_get_property;
gobject_class->notify = gtk_text_notify;
widget_class->map = gtk_text_map;
widget_class->unmap = gtk_text_unmap;
widget_class->realize = gtk_text_realize;
widget_class->unrealize = gtk_text_unrealize;
widget_class->measure = gtk_text_measure;
widget_class->size_allocate = gtk_text_size_allocate;
widget_class->snapshot = gtk_text_snapshot;
widget_class->grab_focus = gtk_text_grab_focus;
widget_class->css_changed = gtk_text_css_changed;
widget_class->direction_changed = gtk_text_direction_changed;
widget_class->state_flags_changed = gtk_text_state_flags_changed;
widget_class->mnemonic_activate = gtk_text_mnemonic_activate;
class ->move_cursor = gtk_text_move_cursor;
class ->insert_at_cursor = gtk_text_insert_at_cursor;
class ->delete_from_cursor = gtk_text_delete_from_cursor;
class ->backspace = gtk_text_backspace;
class ->cut_clipboard = gtk_text_cut_clipboard;
class ->copy_clipboard = gtk_text_copy_clipboard;
class ->paste_clipboard = gtk_text_paste_clipboard;
class ->toggle_overwrite = gtk_text_toggle_overwrite;
class ->insert_emoji = gtk_text_insert_emoji;
class ->activate = gtk_text_real_activate;
quark_password_hint = g_quark_from_static_string ("gtk-entry-password-hint" );
/**
* GtkText : buffer :
*
* The ` GtkEntryBuffer ` object which stores the text .
*/
text_props[PROP_BUFFER] =
g_param_spec_object ("buffer" , NULL, NULL,
GTK_TYPE_ENTRY_BUFFER,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_CONSTRUCT | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : max - length :
*
* Maximum number of characters that are allowed .
*
* Zero indicates no limit .
*/
text_props[PROP_MAX_LENGTH] =
g_param_spec_int ("max-length" , NULL, NULL,
0 , GTK_ENTRY_BUFFER_MAX_SIZE,
0 ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : invisible - char :
*
* The character to used when masking contents ( in “ password mode ” ) .
*/
text_props[PROP_INVISIBLE_CHAR] =
g_param_spec_unichar ("invisible-char" , NULL, NULL,
'*' ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : activates - default :
*
* Whether to activate the default widget when < kbd > Enter < / kbd > is pressed .
*/
text_props[PROP_ACTIVATES_DEFAULT] =
g_param_spec_boolean ("activates-default" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : scroll - offset :
*
* Number of pixels scrolled of the screen to the left .
*/
text_props[PROP_SCROLL_OFFSET] =
g_param_spec_int ("scroll-offset" , NULL, NULL,
0 , G_MAXINT,
0 ,
G_PARAM_READABLE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : truncate - multiline :
*
* When true , pasted multi - line text is truncated to the first line .
*/
text_props[PROP_TRUNCATE_MULTILINE] =
g_param_spec_boolean ("truncate-multiline" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : overwrite - mode :
*
* If text is overwritten when typing .
*/
text_props[PROP_OVERWRITE_MODE] =
g_param_spec_boolean ("overwrite-mode" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : invisible - char - set :
*
* Whether the invisible char has been set .
*/
text_props[PROP_INVISIBLE_CHAR_SET] =
g_param_spec_boolean ("invisible-char-set" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME);
/**
* GtkText : placeholder - text :
*
* The text that will be displayed in the ` GtkText ` when it is empty
* and unfocused .
*/
text_props[PROP_PLACEHOLDER_TEXT] =
g_param_spec_string ("placeholder-text" , NULL, NULL,
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : im - module :
*
* Which input method module should be used .
*
* See [ class @ Gtk . IMMulticontext ] .
*
* Setting this to a non - ` NULL ` value overrides the system - wide
* input method . See the [ property @ Gtk . Settings : gtk - im - module ]
* setting .
*/
text_props[PROP_IM_MODULE] =
g_param_spec_string ("im-module" , NULL, NULL,
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : input - purpose :
*
* The purpose of this text field .
*
* This information can be used by on - screen keyboards and other input
* methods to adjust their behaviour .
*
* Note that setting the purpose to [ enum @ Gtk . InputPurpose . password ]
* or [ enum @ Gtk . InputPurpose . pin ] is independent from setting
* [ property @ Gtk . Text : visibility ] .
*/
text_props[PROP_INPUT_PURPOSE] =
g_param_spec_enum ("input-purpose" , NULL, NULL,
GTK_TYPE_INPUT_PURPOSE,
GTK_INPUT_PURPOSE_FREE_FORM,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : input - hints :
*
* Additional hints that allow input methods to fine - tune
* their behaviour .
*/
text_props[PROP_INPUT_HINTS] =
g_param_spec_flags ("input-hints" , NULL, NULL,
GTK_TYPE_INPUT_HINTS,
GTK_INPUT_HINT_NONE,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : attributes :
*
* A list of Pango attributes to apply to the text .
*
* This is mainly useful to change the size or weight of the text .
*
* The ` PangoAttribute ` ' s @ start_index and @ end_index must refer to the
* ` GtkEntryBuffer ` text , i . e . without the preedit string .
*/
text_props[PROP_ATTRIBUTES] =
g_param_spec_boxed ("attributes" , NULL, NULL,
PANGO_TYPE_ATTR_LIST,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : tabs :
*
* Custom tabs for this text widget .
*/
text_props[PROP_TABS] =
g_param_spec_boxed ("tabs" , NULL, NULL,
PANGO_TYPE_TAB_ARRAY,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : enable - emoji - completion :
*
* Whether to suggest Emoji replacements .
*/
text_props[PROP_ENABLE_EMOJI_COMPLETION] =
g_param_spec_boolean ("enable-emoji-completion" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : visibility :
*
* If false , the text is masked with the “ invisible char ” .
*/
text_props[PROP_VISIBILITY] =
g_param_spec_boolean ("visibility" , NULL, NULL,
TRUE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : propagate - text - width :
*
* Whether the widget should grow and shrink with the content .
*/
text_props[PROP_PROPAGATE_TEXT_WIDTH] =
g_param_spec_boolean ("propagate-text-width" , NULL, NULL,
FALSE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText : extra - menu :
*
* A menu model whose contents will be appended to the context menu .
*/
text_props[PROP_EXTRA_MENU] =
g_param_spec_object ("extra-menu" , NULL, NULL,
G_TYPE_MENU_MODEL,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, NUM_PROPERTIES, text_props);
gtk_editable_install_properties (gobject_class, NUM_PROPERTIES);
/* Action signals */
/**
* GtkText : : activate :
* @ self : the text widget which emitted the signal
*
* Emitted when the user hits the < kbd > Enter < / kbd > key .
*
* The default bindings for this signal are all forms
* of the < kbd > Enter < / kbd > key .
*/
signals[ACTIVATE] =
g_signal_new (I_("activate" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, activate),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : move - cursor :
* @ self : the text widget which emitted the signal
* @ step : the granularity of the move
* @ count : the number of @ step units to move
* @ extend : true if the move should extend the selection
*
* Emitted when the user initiates a cursor movement .
*
* If the cursor is not visible in @ self , this signal causes
* the viewport to be moved instead .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* Applications should not connect to it , but may emit it with
* [ func @ GObject . signal_emit_by_name ] if they need to control
* the cursor programmatically .
*
* The default bindings for this signal come in two variants ,
* the variant with the < kbd > Shift < / kbd > modifier extends the
* selection , the variant without it does not .
* There are too many key combinations to list them all here .
*
* - < kbd > ← < / kbd > , < kbd > → < / kbd > , < kbd > ↑ < / kbd > , < kbd > ↓ < / kbd >
* move by individual characters / lines
* - < kbd > Ctrl < / kbd > + < kbd > ← < / kbd > , etc . move by words / paragraphs
* - < kbd > Home < / kbd > and < kbd > End < / kbd > move to the ends of the buffer
*/
signals[MOVE_CURSOR] =
g_signal_new (I_("move-cursor" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, move_cursor),
NULL, NULL,
_gtk_marshal_VOID__ENUM_INT_BOOLEAN,
G_TYPE_NONE, 3 ,
GTK_TYPE_MOVEMENT_STEP,
G_TYPE_INT,
G_TYPE_BOOLEAN);
g_signal_set_va_marshaller (signals[MOVE_CURSOR],
G_OBJECT_CLASS_TYPE (gobject_class),
_gtk_marshal_VOID__ENUM_INT_BOOLEANv);
/**
* GtkText : : insert - at - cursor :
* @ self : the text widget which emitted the signal
* @ string : the string to insert
*
* Emitted when the user initiates the insertion of a
* fixed string at the cursor .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* This signal has no default bindings .
*/
signals[INSERT_AT_CURSOR] =
g_signal_new (I_("insert-at-cursor" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, insert_at_cursor),
NULL, NULL,
NULL,
G_TYPE_NONE, 1 ,
G_TYPE_STRING);
/**
* GtkText : : delete - from - cursor :
* @ self : the text widget which emitted the signal
* @ type : the granularity of the deletion
* @ count : the number of @ type units to delete
*
* Emitted when the user initiates a text deletion .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* If the @ type is [ enum @ Gtk . DeleteType . chars ] , GTK deletes the
* selection if there is one , otherwise it deletes the requested
* number of characters .
*
* The default bindings for this signal are < kbd > Delete < / kbd >
* for deleting a character and < kbd > Ctrl < / kbd > + < kbd > Delete < / kbd >
* for deleting a word .
*/
signals[DELETE_FROM_CURSOR] =
g_signal_new (I_("delete-from-cursor" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, delete_from_cursor),
NULL, NULL,
_gtk_marshal_VOID__ENUM_INT,
G_TYPE_NONE, 2 ,
GTK_TYPE_DELETE_TYPE,
G_TYPE_INT);
g_signal_set_va_marshaller (signals[DELETE_FROM_CURSOR],
G_OBJECT_CLASS_TYPE (gobject_class),
_gtk_marshal_VOID__ENUM_INTv);
/**
* GtkText : : backspace :
* @ self : the text widget which emitted the signal
*
* Emitted when the user asks for it .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal are
* < kbd > Backspace < / kbd > and < kbd > Shift < / kbd > + < kbd > Backspace < / kbd > .
*/
signals[BACKSPACE] =
g_signal_new (I_("backspace" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, backspace),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : cut - clipboard :
* @ self : the text widget which emitted the signal
*
* Emitted to cut the selection to the clipboard .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal are
* < kbd > Ctrl < / kbd > + < kbd > x < / kbd > and
* < kbd > Shift < / kbd > + < kbd > Delete < / kbd > .
*/
signals[CUT_CLIPBOARD] =
g_signal_new (I_("cut-clipboard" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, cut_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : copy - clipboard :
* @ self : the text widget which emitted the signal
*
* Emitted to copy the selection to the clipboard .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal are
* < kbd > Ctrl < / kbd > + < kbd > c < / kbd > and
* < kbd > Ctrl < / kbd > + < kbd > Insert < / kbd > .
*/
signals[COPY_CLIPBOARD] =
g_signal_new (I_("copy-clipboard" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, copy_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : paste - clipboard :
* @ self : the text widget which emitted the signal
*
* Emitted to paste the contents of the clipboard .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal are
* < kbd > Ctrl < / kbd > + < kbd > v < / kbd > and < kbd > Shift < / kbd > + < kbd > Insert < / kbd > .
*/
signals[PASTE_CLIPBOARD] =
g_signal_new (I_("paste-clipboard" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, paste_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : toggle - overwrite :
* @ self : the text widget which emitted the signal
*
* Emitted to toggle the overwrite mode .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal is < kbd > Insert < / kbd > .
*/
signals[TOGGLE_OVERWRITE] =
g_signal_new (I_("toggle-overwrite" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, toggle_overwrite),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/**
* GtkText : : preedit - changed :
* @ self : the text widget which emitted the signal
* @ preedit : the current preedit string
*
* Emitted when the preedit text changes .
*
* If an input method is used , the typed text will not immediately
* be committed to the buffer . So if you are interested in the text ,
* connect to this signal .
*/
signals[PREEDIT_CHANGED] =
g_signal_new_class_handler (I_("preedit-changed" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
NULL,
NULL, NULL,
NULL,
G_TYPE_NONE, 1 ,
G_TYPE_STRING);
/**
* GtkText : : insert - emoji :
* @ self : the text widget which emitted the signal
*
* Emitted to present the Emoji chooser .
*
* This is a [ keybinding signal ] ( class . SignalAction . html ) .
*
* The default bindings for this signal are
* < kbd > Ctrl < / kbd > + < kbd > . < / kbd > and
* < kbd > Ctrl < / kbd > + < kbd > ; < / kbd >
*/
signals[INSERT_EMOJI] =
g_signal_new (I_("insert-emoji" ),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, insert_emoji),
NULL, NULL,
NULL,
G_TYPE_NONE, 0 );
/*
* Actions
*/
/**
* GtkText | clipboard . cut :
*
* Copies the contents to the clipboard and deletes it from the widget .
*/
gtk_widget_class_install_action (widget_class, "clipboard.cut" , NULL,
gtk_text_activate_clipboard_cut);
/**
* GtkText | clipboard . copy :
*
* Copies the contents to the clipboard .
*/
gtk_widget_class_install_action (widget_class, "clipboard.copy" , NULL,
gtk_text_activate_clipboard_copy);
/**
* GtkText | clipboard . paste :
*
* Inserts the contents of the clipboard into the widget .
*/
gtk_widget_class_install_action (widget_class, "clipboard.paste" , NULL,
gtk_text_activate_clipboard_paste);
/**
* GtkText | selection . delete :
*
* Deletes the current selection .
*/
gtk_widget_class_install_action (widget_class, "selection.delete" , NULL,
gtk_text_activate_selection_delete);
/**
* GtkText | selection . select - all :
*
* Selects all of the widgets content .
*/
gtk_widget_class_install_action (widget_class, "selection.select-all" , NULL,
gtk_text_activate_selection_select_all);
gtk_widget_class_install_action (widget_class, "text.clear" , NULL, gtk_text_clear);
/**
* GtkText | misc . insert - emoji :
*
* Opens the Emoji chooser .
*/
gtk_widget_class_install_action (widget_class, "misc.insert-emoji" , NULL,
gtk_text_activate_misc_insert_emoji);
/**
* GtkText | misc . toggle - direction :
*
* Toggles the text direction .
*/
gtk_widget_class_install_action (widget_class, "misc.toggle-direction" , NULL,
gtk_text_activate_misc_toggle_direction);
/**
* GtkText | misc . toggle - visibility :
*
* Toggles the ` GtkText ` : visibility property .
*/
gtk_widget_class_install_property_action (widget_class,
"misc.toggle-visibility" ,
"visibility" );
/**
* GtkText | text . undo :
*
* Undoes the last change to the contents .
*/
gtk_widget_class_install_action (widget_class, "text.undo" , NULL, gtk_text_real_undo);
/**
* GtkText | text . redo :
*
* Redoes the last change to the contents .
*/
gtk_widget_class_install_action (widget_class, "text.redo" , NULL, gtk_text_real_redo);
/**
* GtkText | menu . popup :
*
* Opens the context menu .
*/
gtk_widget_class_install_action (widget_class, "menu.popup" , NULL, gtk_text_popup_menu);
/*
* Key bindings
*/
shortcut = gtk_shortcut_new (gtk_shortcut_trigger_create_for_menu (),
gtk_named_action_new ("menu.popup" ));
gtk_widget_class_add_shortcut (widget_class, shortcut);
g_object_unref (shortcut);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_t, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"misc.toggle-direction" ,
NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_Clear, GDK_NO_MODIFIER_MASK,
"text.clear" ,
NULL);
/* Moving the insertion point */
add_move_binding (widget_class, GDK_KEY_Right, 0 ,
GTK_MOVEMENT_VISUAL_POSITIONS, 1 );
add_move_binding (widget_class, GDK_KEY_Left, 0 ,
GTK_MOVEMENT_VISUAL_POSITIONS, -1 );
add_move_binding (widget_class, GDK_KEY_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1 );
add_move_binding (widget_class, GDK_KEY_Left, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, -1 );
add_move_binding (widget_class, GDK_KEY_Home, 0 ,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1 );
add_move_binding (widget_class, GDK_KEY_End, 0 ,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1 );
add_move_binding (widget_class, GDK_KEY_Home, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1 );
add_move_binding (widget_class, GDK_KEY_End, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1 );
#ifdef __APPLE__
add_move_binding (widget_class, GDK_KEY_Right, GDK_ALT_MASK,
GTK_MOVEMENT_WORDS, 1 );
add_move_binding (widget_class, GDK_KEY_Left, GDK_ALT_MASK,
GTK_MOVEMENT_WORDS, -1 );
add_move_binding (widget_class, GDK_KEY_Right, GDK_META_MASK,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1 );
add_move_binding (widget_class, GDK_KEY_Left, GDK_META_MASK,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1 );
add_move_binding (widget_class, GDK_KEY_Up, GDK_META_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1 );
add_move_binding (widget_class, GDK_KEY_Down, GDK_META_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1 );
#endif
/* Select all */
#ifdef __APPLE__
gtk_widget_class_add_binding (widget_class,
GDK_KEY_a, GDK_META_MASK,
(GtkShortcutFunc) gtk_text_select_all,
NULL);
#else
gtk_widget_class_add_binding (widget_class,
GDK_KEY_a, GDK_CONTROL_MASK,
(GtkShortcutFunc) gtk_text_select_all,
NULL);
gtk_widget_class_add_binding (widget_class,
GDK_KEY_slash, GDK_CONTROL_MASK,
(GtkShortcutFunc) gtk_text_select_all,
NULL);
#endif
/* Unselect all */
#ifdef __APPLE__
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_a, GDK_SHIFT_MASK | GDK_META_MASK,
"move-cursor" ,
"(iib)" , GTK_MOVEMENT_VISUAL_POSITIONS, 0 , FALSE );
#else
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_backslash, GDK_CONTROL_MASK,
"move-cursor" ,
"(iib)" , GTK_MOVEMENT_VISUAL_POSITIONS, 0 , FALSE );
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
"move-cursor" ,
"(iib)" , GTK_MOVEMENT_VISUAL_POSITIONS, 0 , FALSE );
#endif
/* Activate */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Return, GDK_NO_MODIFIER_MASK,
"activate" , NULL);
/* Deleting text */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_NO_MODIFIER_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_CHARS, 1 );
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_NO_MODIFIER_MASK,
"backspace" ,
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_u, GDK_CONTROL_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_PARAGRAPH_ENDS, -1 );
/* Make this do the same as Backspace, to help with mis-typing */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_SHIFT_MASK,
"backspace" ,
NULL);
#ifdef __APPLE__
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_ALT_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_WORD_ENDS, 1 );
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_ALT_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_WORD_ENDS, -1 );
#else
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_CONTROL_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_WORD_ENDS, 1 );
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_CONTROL_MASK,
"delete-from-cursor" ,
"(ii)" , GTK_DELETE_WORD_ENDS, -1 );
#endif
/* Cut/copy/paste */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Cut, GDK_NO_MODIFIER_MASK,
"cut-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Copy, GDK_NO_MODIFIER_MASK,
"copy-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Paste, GDK_NO_MODIFIER_MASK,
"paste-clipboard" , NULL);
#ifdef __APPLE__
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_x, GDK_META_MASK,
"cut-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_c, GDK_META_MASK,
"copy-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_v, GDK_META_MASK,
"paste-clipboard" , NULL);
#else
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_x, GDK_CONTROL_MASK,
"cut-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_c, GDK_CONTROL_MASK,
"copy-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_v, GDK_CONTROL_MASK,
"paste-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_SHIFT_MASK,
"cut-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, GDK_CONTROL_MASK,
"copy-clipboard" , NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, GDK_SHIFT_MASK,
"paste-clipboard" , NULL);
#endif
/* Overwrite */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, GDK_NO_MODIFIER_MASK,
"toggle-overwrite" , NULL);
/* Emoji */
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_period, GDK_CONTROL_MASK,
"misc.insert-emoji" ,
NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_semicolon, GDK_CONTROL_MASK,
"misc.insert-emoji" ,
NULL);
/* Undo/Redo */
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_Undo, GDK_NO_MODIFIER_MASK,
"text.undo" , NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_Redo, GDK_NO_MODIFIER_MASK,
"text.redo" , NULL);
#ifdef __APPLE__
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_META_MASK,
"text.undo" , NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_META_MASK | GDK_SHIFT_MASK,
"text.redo" , NULL);
#else
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_CONTROL_MASK,
"text.undo" , NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_y, GDK_CONTROL_MASK,
"text.redo" , NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"text.redo" , NULL);
#endif
gtk_widget_class_set_css_name (widget_class, I_("text" ));
gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_NONE);
}
static void
editable_insert_text (GtkEditable *editable,
const char *text,
int length,
int *position)
{
gtk_text_insert_text (GTK_TEXT (editable), text, length, position);
}
static void
editable_delete_text (GtkEditable *editable,
int start_pos,
int end_pos)
{
gtk_text_delete_text (GTK_TEXT (editable), start_pos, end_pos);
}
static const char *
editable_get_text (GtkEditable *editable)
{
return gtk_entry_buffer_get_text (get_buffer (GTK_TEXT (editable)));
}
static char *
editable_get_complete_text (GtkEditable *editable)
{
GtkText *self = GTK_TEXT (editable);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
GString *ret = g_string_new (gtk_entry_buffer_get_text (get_buffer (self)));
char *preedit_string = NULL;
int pos;
gtk_im_context_get_preedit_string (priv->im_context,
&preedit_string, NULL, NULL);
pos = g_utf8_offset_to_pointer (ret->str, priv->current_pos) - ret->str;
g_string_insert (ret, pos, preedit_string);
g_free (preedit_string);
return g_string_free (ret, FALSE );
}
else
{
return g_strdup (editable_get_text (editable));
}
}
static void
editable_set_selection_bounds (GtkEditable *editable,
int start_pos,
int end_pos)
{
gtk_text_set_selection_bounds (GTK_TEXT (editable), start_pos, end_pos);
}
static gboolean
editable_get_selection_bounds (GtkEditable *editable,
int *start_pos,
int *end_pos)
{
return gtk_text_get_selection_bounds (GTK_TEXT (editable), start_pos, end_pos);
}
static void
gtk_text_editable_init (GtkEditableInterface *iface)
{
iface->insert_text = editable_insert_text;
iface->delete_text = editable_delete_text;
iface->get_text = editable_get_text;
iface->get_complete_text = editable_get_complete_text;
iface->set_selection_bounds = editable_set_selection_bounds;
iface->get_selection_bounds = editable_get_selection_bounds;
}
static void
gtk_text_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
switch (prop_id)
{
/* GtkEditable properties */
case NUM_PROPERTIES + GTK_EDITABLE_PROP_EDITABLE:
gtk_text_set_editable (self, g_value_get_boolean (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_WIDTH_CHARS:
gtk_text_set_width_chars (self, g_value_get_int (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_MAX_WIDTH_CHARS:
gtk_text_set_max_width_chars (self, g_value_get_int (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_TEXT:
gtk_text_set_text (self, g_value_get_string (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_XALIGN:
gtk_text_set_alignment (self, g_value_get_float (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_ENABLE_UNDO:
gtk_text_set_enable_undo (self, g_value_get_boolean (value));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_INPUT_INTERCEPTOR:
gtk_text_set_input_interceptor (self, g_value_get_object (value));
break ;
/* GtkText properties */
case PROP_BUFFER:
gtk_text_set_buffer (self, g_value_get_object (value));
break ;
case PROP_MAX_LENGTH:
gtk_text_set_max_length (self, g_value_get_int (value));
break ;
case PROP_VISIBILITY:
gtk_text_set_visibility (self, g_value_get_boolean (value));
break ;
case PROP_INVISIBLE_CHAR:
gtk_text_set_invisible_char (self, g_value_get_uint (value));
break ;
case PROP_ACTIVATES_DEFAULT:
gtk_text_set_activates_default (self, g_value_get_boolean (value));
break ;
case PROP_TRUNCATE_MULTILINE:
gtk_text_set_truncate_multiline (self, g_value_get_boolean (value));
break ;
case PROP_OVERWRITE_MODE:
gtk_text_set_overwrite_mode (self, g_value_get_boolean (value));
break ;
case PROP_INVISIBLE_CHAR_SET:
if (g_value_get_boolean (value))
priv->invisible_char_set = TRUE ;
else
gtk_text_unset_invisible_char (self);
break ;
case PROP_PLACEHOLDER_TEXT:
gtk_text_set_placeholder_text (self, g_value_get_string (value));
break ;
case PROP_IM_MODULE:
g_free (priv->im_module);
priv->im_module = g_value_dup_string (value);
if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
g_object_notify_by_pspec (object, pspec);
break ;
case PROP_INPUT_PURPOSE:
gtk_text_set_input_purpose (self, g_value_get_enum (value));
break ;
case PROP_INPUT_HINTS:
gtk_text_set_input_hints (self, g_value_get_flags (value));
break ;
case PROP_ATTRIBUTES:
gtk_text_set_attributes (self, g_value_get_boxed (value));
break ;
case PROP_TABS:
gtk_text_set_tabs (self, g_value_get_boxed (value));
break ;
case PROP_ENABLE_EMOJI_COMPLETION:
gtk_text_set_enable_emoji_completion (self, g_value_get_boolean (value));
break ;
case PROP_PROPAGATE_TEXT_WIDTH:
gtk_text_set_propagate_text_width (self, g_value_get_boolean (value));
break ;
case PROP_EXTRA_MENU:
gtk_text_set_extra_menu (self, g_value_get_object (value));
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break ;
}
}
static void
gtk_text_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
switch (prop_id)
{
/* GtkEditable properties */
case NUM_PROPERTIES + GTK_EDITABLE_PROP_CURSOR_POSITION:
g_value_set_int (value, priv->current_pos);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_SELECTION_BOUND:
g_value_set_int (value, priv->selection_bound);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_EDITABLE:
g_value_set_boolean (value, priv->editable);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_WIDTH_CHARS:
g_value_set_int (value, priv->width_chars);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_MAX_WIDTH_CHARS:
g_value_set_int (value, priv->max_width_chars);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_TEXT:
g_value_set_string (value, gtk_entry_buffer_get_text (get_buffer (self)));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_XALIGN:
g_value_set_float (value, priv->xalign);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_ENABLE_UNDO:
g_value_set_boolean (value, priv->enable_undo);
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_COMPLETE_TEXT:
g_value_take_string (value, editable_get_complete_text ((GtkEditable *)self));
break ;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_INPUT_INTERCEPTOR:
g_value_set_object (value, gtk_text_get_input_interceptor (self));
break ;
/* GtkText properties */
case PROP_BUFFER:
g_value_set_object (value, get_buffer (self));
break ;
case PROP_MAX_LENGTH:
g_value_set_int (value, gtk_entry_buffer_get_max_length (get_buffer (self)));
break ;
case PROP_VISIBILITY:
g_value_set_boolean (value, priv->visible);
break ;
case PROP_INVISIBLE_CHAR:
g_value_set_uint (value, priv->invisible_char);
break ;
case PROP_ACTIVATES_DEFAULT:
g_value_set_boolean (value, priv->activates_default);
break ;
case PROP_SCROLL_OFFSET:
g_value_set_int (value, priv->scroll_offset);
break ;
case PROP_TRUNCATE_MULTILINE:
g_value_set_boolean (value, priv->truncate_multiline);
break ;
case PROP_OVERWRITE_MODE:
g_value_set_boolean (value, priv->overwrite_mode);
break ;
case PROP_INVISIBLE_CHAR_SET:
g_value_set_boolean (value, priv->invisible_char_set);
break ;
case PROP_IM_MODULE:
g_value_set_string (value, priv->im_module);
break ;
case PROP_PLACEHOLDER_TEXT:
g_value_set_string (value, gtk_text_get_placeholder_text (self));
break ;
case PROP_INPUT_PURPOSE:
g_value_set_enum (value, gtk_text_get_input_purpose (self));
break ;
case PROP_INPUT_HINTS:
g_value_set_flags (value, gtk_text_get_input_hints (self));
break ;
case PROP_ATTRIBUTES:
g_value_set_boxed (value, priv->attrs);
break ;
case PROP_TABS:
g_value_set_boxed (value, priv->tabs);
break ;
case PROP_ENABLE_EMOJI_COMPLETION:
g_value_set_boolean (value, priv->enable_emoji_completion);
break ;
case PROP_PROPAGATE_TEXT_WIDTH:
g_value_set_boolean (value, priv->propagate_text_width);
break ;
case PROP_EXTRA_MENU:
g_value_set_object (value, priv->extra_menu);
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break ;
}
}
static void
gtk_text_notify (GObject *object,
GParamSpec *pspec)
{
if (pspec->name == I_("has-focus" ))
gtk_text_check_cursor_blink (GTK_TEXT (object));
if (G_OBJECT_CLASS (gtk_text_parent_class)->notify)
G_OBJECT_CLASS (gtk_text_parent_class)->notify (object, pspec);
}
static void
gtk_text_ensure_text_handles (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int i;
for (i = 0 ; i < TEXT_HANDLE_N_HANDLES; i++)
{
if (priv->text_handles[i])
continue ;
priv->text_handles[i] = gtk_text_handle_new (GTK_WIDGET (self));
g_signal_connect (priv->text_handles[i], "drag-started" ,
G_CALLBACK (gtk_text_handle_drag_started), self);
g_signal_connect (priv->text_handles[i], "handle-dragged" ,
G_CALLBACK (gtk_text_handle_dragged), self);
g_signal_connect (priv->text_handles[i], "drag-finished" ,
G_CALLBACK (gtk_text_handle_drag_finished), self);
}
}
static void
gtk_text_init (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkCssNode *widget_node;
GtkGesture *gesture, *click_gesture;
GtkEventController *controller;
int i;
GtkDropTarget *target;
gtk_widget_set_focusable (GTK_WIDGET (self), TRUE );
gtk_widget_set_overflow (GTK_WIDGET (self), GTK_OVERFLOW_HIDDEN);
priv->editable = TRUE ;
priv->visible = TRUE ;
priv->dnd_position = -1 ;
priv->width_chars = -1 ;
priv->max_width_chars = -1 ;
priv->truncate_multiline = FALSE ;
priv->xalign = 0 .0 ;
priv->insert_pos = -1 ;
priv->cursor_alpha = 1 .0 ;
priv->invisible_char = 0 ;
priv->history = gtk_text_history_new (&history_funcs, self);
priv->enable_undo = TRUE ;
gtk_text_history_set_max_undo_levels (priv->history, DEFAULT_MAX_UNDO);
priv->selection_content = g_object_new (GTK_TYPE_TEXT_CONTENT, NULL);
GTK_TEXT_CONTENT (priv->selection_content)->self = self;
target = gtk_drop_target_new (G_TYPE_STRING, GDK_ACTION_COPY | GDK_ACTION_MOVE);
gtk_event_controller_set_static_name (GTK_EVENT_CONTROLLER (target), "gtk-text-drop-target" );
g_signal_connect (target, "accept" , G_CALLBACK (gtk_text_drag_accept), self);
g_signal_connect (target, "enter" , G_CALLBACK (gtk_text_drag_motion), self);
g_signal_connect (target, "motion" , G_CALLBACK (gtk_text_drag_motion), self);
g_signal_connect (target, "leave" , G_CALLBACK (gtk_text_drag_leave), self);
g_signal_connect (target, "drop" , G_CALLBACK (gtk_text_drag_drop), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (target));
/* This object is completely private. No external entity can gain a reference
* to it ; so we create it here and destroy it in finalize ( ) .
*/
priv->im_context = gtk_im_multicontext_new ();
gtk_im_context_set_client_widget (priv->im_context, GTK_WIDGET (self));
g_signal_connect (priv->im_context, "preedit-start" ,
G_CALLBACK (gtk_text_preedit_start_cb), self);
g_signal_connect (priv->im_context, "commit" ,
G_CALLBACK (gtk_text_commit_cb), self);
g_signal_connect (priv->im_context, "preedit-changed" ,
G_CALLBACK (gtk_text_preedit_changed_cb), self);
g_signal_connect (priv->im_context, "retrieve-surrounding" ,
G_CALLBACK (gtk_text_retrieve_surrounding_cb), self);
g_signal_connect (priv->im_context, "delete-surrounding" ,
G_CALLBACK (gtk_text_delete_surrounding_cb), self);
priv->drag_gesture = gtk_gesture_drag_new ();
gtk_event_controller_set_static_name (GTK_EVENT_CONTROLLER (priv->drag_gesture), "gtk-text-drag-gesture" );
g_signal_connect (priv->drag_gesture, "drag-update" ,
G_CALLBACK (gtk_text_drag_gesture_update), self);
g_signal_connect (priv->drag_gesture, "drag-end" ,
G_CALLBACK (gtk_text_drag_gesture_end), self);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->drag_gesture), 0 );
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (priv->drag_gesture), TRUE );
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (priv->drag_gesture));
gesture = gtk_gesture_click_new ();
gtk_event_controller_set_static_name (GTK_EVENT_CONTROLLER (gesture), "gtk-text-click-gesture" );
g_signal_connect (gesture, "pressed" ,
G_CALLBACK (gtk_text_click_gesture_pressed), self);
g_signal_connect (gesture, "released" ,
G_CALLBACK (gtk_text_click_gesture_released), self);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0 );
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (gesture), TRUE );
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
click_gesture = gesture;
gesture = gtk_gesture_long_press_new ();
gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture), TRUE );
g_signal_connect (gesture, "pressed" ,
G_CALLBACK (gtk_text_long_press_gesture_pressed), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
gtk_gesture_group (click_gesture, gesture);
controller = gtk_event_controller_motion_new ();
gtk_event_controller_set_static_name (controller, "gtk-text-motion-controller" );
g_signal_connect (controller, "motion" ,
G_CALLBACK (gtk_text_motion_controller_motion), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
priv->key_controller = gtk_event_controller_key_new ();
gtk_event_controller_set_propagation_phase (priv->key_controller, GTK_PHASE_TARGET);
gtk_event_controller_set_static_name (priv->key_controller, "gtk-text-key-controller" );
g_signal_connect (priv->key_controller, "key-pressed" ,
G_CALLBACK (gtk_text_key_controller_key_pressed), self);
g_signal_connect_swapped (priv->key_controller, "im-update" ,
G_CALLBACK (gtk_text_schedule_im_reset), self);
gtk_event_controller_key_set_im_context (GTK_EVENT_CONTROLLER_KEY (priv->key_controller),
priv->im_context);
gtk_widget_add_controller (GTK_WIDGET (self), priv->key_controller);
priv->focus_controller = gtk_event_controller_focus_new ();
gtk_event_controller_set_static_name (priv->focus_controller, "gtk-text-focus-controller" );
g_signal_connect (priv->focus_controller, "notify::is-focus" ,
G_CALLBACK (gtk_text_focus_changed), self);
gtk_widget_add_controller (GTK_WIDGET (self), priv->focus_controller);
widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
for (i = 0 ; i < 2 ; i++)
{
priv->undershoot_node[i] = gtk_css_node_new ();
gtk_css_node_set_name (priv->undershoot_node[i], g_quark_from_static_string ("undershoot" ));
gtk_css_node_add_class (priv->undershoot_node[i], g_quark_from_static_string (i == 0 ? "left" : "right" ));
gtk_css_node_set_parent (priv->undershoot_node[i], widget_node);
gtk_css_node_set_state (priv->undershoot_node[i], gtk_css_node_get_state (widget_node) & ~GTK_STATE_FLAG_DROP_ACTIVE);
g_object_unref (priv->undershoot_node[i]);
}
set_text_cursor (GTK_WIDGET (self));
}
static void
gtk_text_dispose (GObject *object)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *chooser;
priv->current_pos = priv->selection_bound = 0 ;
gtk_text_reset_im_context (self);
gtk_text_reset_layout (self);
if (priv->blink_tick)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (object), priv->blink_tick);
priv->blink_tick = 0 ;
}
if (priv->magnifier)
_gtk_magnifier_set_inspected (GTK_MAGNIFIER (priv->magnifier), NULL);
if (priv->buffer)
{
buffer_disconnect_signals (self);
g_clear_object (&priv->buffer);
}
g_clear_pointer (&priv->emoji_completion, gtk_widget_unparent);
chooser = g_object_get_data (object, "gtk-emoji-chooser" );
if (chooser)
gtk_widget_unparent (chooser);
gtk_im_context_set_client_widget (priv->im_context, NULL);
g_clear_pointer (&priv->selection_bubble, gtk_widget_unparent);
g_clear_pointer (&priv->popup_menu, gtk_widget_unparent);
g_clear_pointer ((GtkWidget **) &priv->text_handles[TEXT_HANDLE_CURSOR], gtk_widget_unparent);
g_clear_pointer ((GtkWidget **) &priv->text_handles[TEXT_HANDLE_SELECTION_BOUND], gtk_widget_unparent);
g_clear_object (&priv->extra_menu);
g_clear_pointer (&priv->magnifier_popover, gtk_widget_unparent);
g_clear_pointer (&priv->placeholder, gtk_widget_unparent);
gtk_text_set_input_interceptor (self, NULL);
G_OBJECT_CLASS (gtk_text_parent_class)->dispose (object);
}
static void
gtk_text_finalize (GObject *object)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_clear_object (&priv->selection_content);
g_clear_object (&priv->history);
g_clear_object (&priv->cached_layout);
g_clear_object (&priv->im_context);
g_free (priv->im_module);
if (priv->tabs)
pango_tab_array_free (priv->tabs);
if (priv->attrs)
pango_attr_list_unref (priv->attrs);
G_OBJECT_CLASS (gtk_text_parent_class)->finalize (object);
}
static void
gtk_text_ensure_magnifier (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->magnifier_popover)
return ;
priv->magnifier = _gtk_magnifier_new (GTK_WIDGET (self));
gtk_widget_set_size_request (priv->magnifier, 100 , 60 );
_gtk_magnifier_set_magnification (GTK_MAGNIFIER (priv->magnifier), 2 .0 );
priv->magnifier_popover = gtk_popover_new ();
gtk_popover_set_position (GTK_POPOVER (priv->magnifier_popover), GTK_POS_TOP);
gtk_widget_set_parent (priv->magnifier_popover, GTK_WIDGET (self));
gtk_widget_add_css_class (priv->magnifier_popover, "magnifier" );
gtk_popover_set_autohide (GTK_POPOVER (priv->magnifier_popover), FALSE );
gtk_popover_set_child (GTK_POPOVER (priv->magnifier_popover), priv->magnifier);
gtk_widget_set_visible (priv->magnifier, TRUE );
}
static void
begin_change (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->change_count++;
g_object_freeze_notify (G_OBJECT (self));
}
static void
end_change (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (priv->change_count > 0 );
g_object_thaw_notify (G_OBJECT (self));
priv->change_count--;
if (priv->change_count == 0 )
{
if (priv->real_changed)
{
g_signal_emit_by_name (self, "changed" );
priv->real_changed = FALSE ;
}
}
}
static void
emit_changed (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->change_count == 0 )
g_signal_emit_by_name (self, "changed" );
else
priv->real_changed = TRUE ;
}
static DisplayMode
gtk_text_get_display_mode (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->visible)
return DISPLAY_NORMAL;
if (priv->invisible_char == 0 && priv->invisible_char_set)
return DISPLAY_BLANK;
return DISPLAY_INVISIBLE;
}
char *
gtk_text_get_display_text (GtkText *self,
int start_pos,
int end_pos)
{
GtkTextPasswordHint *password_hint;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar invisible_char;
const char *start;
const char *end;
const char *text;
char char_str[7 ];
int char_len;
GString *str;
guint length;
int i;
text = gtk_entry_buffer_get_text (get_buffer (self));
length = gtk_entry_buffer_get_length (get_buffer (self));
if (end_pos < 0 || end_pos > length)
end_pos = length;
if (start_pos > length)
start_pos = length;
if (end_pos <= start_pos)
return g_strdup ("" );
else if (priv->visible)
{
start = g_utf8_offset_to_pointer (text, start_pos);
end = g_utf8_offset_to_pointer (start, end_pos - start_pos);
return g_strndup (start, end - start);
}
else
{
str = g_string_sized_new (length * 2 );
/* Figure out what our invisible char is and encode it */
if (!priv->invisible_char)
invisible_char = priv->invisible_char_set ? ' ' : '*' ;
else
invisible_char = priv->invisible_char;
char_len = g_unichar_to_utf8 (invisible_char, char_str);
/*
* Add hidden characters for each character in the text
* buffer . If there is a password hint , then keep that
* character visible .
*/
password_hint = g_object_get_qdata (G_OBJECT (self), quark_password_hint);
for (i = start_pos; i < end_pos; ++i)
{
if (password_hint && i == password_hint->position)
{
start = g_utf8_offset_to_pointer (text, i);
g_string_append_len (str, start, g_utf8_next_char (start) - start);
}
else
{
g_string_append_len (str, char_str, char_len);
}
}
return g_string_free (str, FALSE );
}
}
static void
gtk_text_map (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GTK_WIDGET_CLASS (gtk_text_parent_class)->map (widget);
gtk_text_recompute (self);
}
static void
gtk_text_unmap (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->text_handles_enabled = FALSE ;
gtk_text_update_handles (self);
priv->cursor_alpha = 1 .0 ;
GTK_WIDGET_CLASS (gtk_text_parent_class)->unmap (widget);
}
static void
gtk_text_im_set_focus_in (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->editable)
return ;
gtk_text_schedule_im_reset (self);
gtk_im_context_focus_in (priv->im_context);
}
static void
gtk_text_realize (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GTK_WIDGET_CLASS (gtk_text_parent_class)->realize (widget);
gtk_text_adjust_scroll (self);
gtk_text_update_primary_selection (self);
}
static void
gtk_text_unrealize (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkClipboard *clipboard;
gtk_text_reset_layout (self);
clipboard = gtk_widget_get_primary_clipboard (widget);
if (gdk_clipboard_get_content (clipboard) == priv->selection_content)
gdk_clipboard_set_content (clipboard, NULL);
GTK_WIDGET_CLASS (gtk_text_parent_class)->unrealize (widget);
}
static void
update_im_cursor_location (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
GdkRectangle area;
int strong_x;
int strong_xoffset;
gtk_text_get_cursor_locations (self, &strong_x, NULL);
strong_xoffset = strong_x - priv->scroll_offset;
if (strong_xoffset < 0 )
strong_xoffset = 0 ;
else if (strong_xoffset > text_width)
strong_xoffset = text_width;
area.x = strong_xoffset;
area.y = 0 ;
area.width = 0 ;
area.height = gtk_widget_get_height (GTK_WIDGET (self));
gtk_im_context_set_cursor_location (priv->im_context, &area);
}
static void
gtk_text_move_handle (GtkText *self,
GtkTextHandle *handle,
int x,
int y,
int height)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!gtk_text_handle_get_is_dragged (handle) &&
(x < 0 || x > gtk_widget_get_width (GTK_WIDGET (self))))
{
/* Hide the handle if it's not being manipulated
* and fell outside of the visible text area .
*/
gtk_widget_set_visible (GTK_WIDGET (handle), FALSE );
}
else
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = 1 ;
rect.height = height;
gtk_text_handle_set_position (handle, &rect);
gtk_widget_set_direction (GTK_WIDGET (handle), priv->resolved_dir);
gtk_widget_set_visible (GTK_WIDGET (handle), TRUE );
}
}
static int
gtk_text_get_selection_bound_location (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout;
PangoRectangle pos;
int x;
const char *text;
int index;
layout = gtk_text_ensure_layout (self, FALSE );
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
pango_layout_index_to_pos (layout, index, &pos);
if (gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL)
x = (pos.x + pos.width) / PANGO_SCALE;
else
x = pos.x / PANGO_SCALE;
return x;
}
static void
gtk_text_update_handles (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
int strong_x;
int cursor, bound;
if (!priv->text_handles_enabled)
{
if (priv->text_handles[TEXT_HANDLE_CURSOR])
gtk_widget_set_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_CURSOR]), FALSE );
if (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
gtk_widget_set_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]), FALSE );
}
else
{
gtk_text_ensure_text_handles (self);
gtk_text_get_cursor_locations (self, &strong_x, NULL);
cursor = strong_x - priv->scroll_offset;
if (priv->selection_bound != priv->current_pos)
{
int start, end;
bound = gtk_text_get_selection_bound_location (self) - priv->scroll_offset;
if (priv->selection_bound > priv->current_pos)
{
start = cursor;
end = bound;
}
else
{
start = bound;
end = cursor;
}
/* Update start selection bound */
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND],
GTK_TEXT_HANDLE_ROLE_SELECTION_END);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_SELECTION_BOUND],
end, 0 , text_height);
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_CURSOR],
GTK_TEXT_HANDLE_ROLE_SELECTION_START);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_CURSOR],
start, 0 , text_height);
}
else
{
gtk_widget_set_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]), FALSE );
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_CURSOR],
GTK_TEXT_HANDLE_ROLE_CURSOR);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_CURSOR],
cursor, 0 , text_height);
}
}
}
static void
gtk_text_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoContext *context;
PangoFontMetrics *metrics;
context = gtk_widget_get_pango_context (widget);
metrics = pango_context_get_metrics (context, NULL, NULL);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
int min, nat;
int char_width;
int digit_width;
int char_pixels;
char_width = pango_font_metrics_get_approximate_char_width (metrics);
digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
char_pixels = (MAX (char_width, digit_width) + PANGO_SCALE - 1 ) / PANGO_SCALE;
if (priv->width_chars >= 0 )
min = char_pixels * priv->width_chars;
else
min = 0 ;
if (priv->max_width_chars < 0 )
nat = NAT_ENTRY_WIDTH;
else
nat = char_pixels * priv->max_width_chars;
if (priv->propagate_text_width)
{
PangoLayout *layout;
int act;
layout = gtk_text_ensure_layout (self, TRUE );
pango_layout_get_pixel_size (layout, &act, NULL);
nat = MIN (act, nat);
}
nat = MAX (min, nat);
if (priv->placeholder)
{
int pmin, pnat;
gtk_widget_measure (priv->placeholder, GTK_ORIENTATION_HORIZONTAL, -1 ,
&pmin, &pnat, NULL, NULL);
min = MAX (min, pmin);
nat = MAX (nat, pnat);
}
*minimum = min;
*natural = nat;
}
else
{
int height, baseline;
PangoLayout *layout;
layout = gtk_text_ensure_layout (self, TRUE );
priv->ascent = pango_font_metrics_get_ascent (metrics);
priv->descent = pango_font_metrics_get_descent (metrics);
pango_layout_get_pixel_size (layout, NULL, &height);
height = MAX (height, PANGO_PIXELS (priv->ascent + priv->descent));
baseline = pango_layout_get_baseline (layout) / PANGO_SCALE;
*minimum = *natural = height;
if (priv->placeholder)
{
int min, nat;
gtk_widget_measure (priv->placeholder, GTK_ORIENTATION_VERTICAL, -1 ,
&min, &nat, NULL, NULL);
*minimum = MAX (*minimum, min);
*natural = MAX (*natural, nat);
}
if (minimum_baseline)
*minimum_baseline = baseline;
if (natural_baseline)
*natural_baseline = baseline;
}
pango_font_metrics_unref (metrics);
}
static void
gtk_text_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkEmojiChooser *chooser;
priv->text_baseline = baseline;
if (priv->placeholder)
{
gtk_widget_size_allocate (priv->placeholder,
&(GtkAllocation) { 0 , 0 , width, height },
-1 );
}
gtk_text_adjust_scroll (self);
gtk_text_check_cursor_blink (self);
update_im_cursor_location (self);
chooser = g_object_get_data (G_OBJECT (self), "gtk-emoji-chooser" );
if (chooser)
gtk_popover_present (GTK_POPOVER (chooser));
gtk_text_update_handles (self);
if (priv->emoji_completion)
gtk_popover_present (GTK_POPOVER (priv->emoji_completion));
if (priv->magnifier_popover)
gtk_popover_present (GTK_POPOVER (priv->magnifier_popover));
if (priv->popup_menu)
gtk_popover_present (GTK_POPOVER (priv->popup_menu));
if (priv->selection_bubble)
gtk_popover_present (GTK_POPOVER (priv->selection_bubble));
if (priv->text_handles[TEXT_HANDLE_CURSOR])
gtk_text_handle_present (priv->text_handles[TEXT_HANDLE_CURSOR]);
if (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
gtk_text_handle_present (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]);
}
static void
gtk_text_draw_undershoot (GtkText *self,
GtkSnapshot *snapshot)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
GtkCssStyle *style;
int min_offset, max_offset;
GtkCssBoxes boxes;
gtk_text_get_scroll_limits (self, &min_offset, &max_offset);
if (priv->scroll_offset > min_offset)
{
style = gtk_css_node_get_style (priv->undershoot_node[0 ]);
gtk_css_boxes_init_border_box (&boxes, style, 0 , 0 , UNDERSHOOT_SIZE, text_height);
gtk_css_style_snapshot_background (&boxes, snapshot);
gtk_css_style_snapshot_border (&boxes, snapshot);
}
if (priv->scroll_offset < max_offset)
{
style = gtk_css_node_get_style (priv->undershoot_node[1 ]);
gtk_css_boxes_init_border_box (&boxes, style,
text_width - UNDERSHOOT_SIZE, 0 , UNDERSHOOT_SIZE, text_height);
gtk_css_style_snapshot_background (&boxes, snapshot);
gtk_css_style_snapshot_border (&boxes, snapshot);
}
}
static void
gtk_text_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
/* Draw text and cursor */
if (priv->dnd_position != -1 )
gtk_text_draw_cursor (self, snapshot, CURSOR_DND);
if (priv->placeholder)
gtk_widget_snapshot_child (widget, priv->placeholder, snapshot);
gtk_text_draw_text (self, snapshot);
/* When no text is being displayed at all, don't show the cursor */
if (gtk_text_get_display_mode (self) != DISPLAY_BLANK &&
gtk_widget_has_focus (widget) &&
priv->selection_bound == priv->current_pos)
{
gtk_snapshot_push_opacity (snapshot, priv->cursor_alpha);
gtk_text_draw_cursor (self, snapshot, CURSOR_STANDARD);
gtk_snapshot_pop (snapshot);
}
gtk_text_draw_undershoot (self, snapshot);
}
static void
gtk_text_get_pixel_ranges (GtkText *self,
int **ranges,
int *n_ranges)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE );
PangoLayoutLine *line = pango_layout_get_lines_readonly (layout)->data;
const char *text = pango_layout_get_text (layout);
int start_index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
int end_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
int real_n_ranges, i;
pango_layout_line_get_x_ranges (line,
MIN (start_index, end_index),
MAX (start_index, end_index),
ranges,
&real_n_ranges);
if (ranges)
{
int *r = *ranges;
for (i = 0 ; i < real_n_ranges; ++i)
{
r[2 * i + 1 ] = (r[2 * i + 1 ] - r[2 * i]) / PANGO_SCALE;
r[2 * i] = r[2 * i] / PANGO_SCALE;
}
}
if (n_ranges)
*n_ranges = real_n_ranges;
}
else
{
if (n_ranges)
*n_ranges = 0 ;
if (ranges)
*ranges = NULL;
}
}
static gboolean
in_selection (GtkText *self,
int x)
{
int *ranges;
int n_ranges, i;
int retval = FALSE ;
gtk_text_get_pixel_ranges (self, &ranges, &n_ranges);
for (i = 0 ; i < n_ranges; ++i)
{
if (x >= ranges[2 * i] && x < ranges[2 * i] + ranges[2 * i + 1 ])
{
retval = TRUE ;
break ;
}
}
g_free (ranges);
return retval;
}
static int
gesture_get_current_point_in_layout (GtkGestureSingle *gesture,
GtkText *self)
{
int tx;
GdkEventSequence *sequence;
double px;
sequence = gtk_gesture_single_get_current_sequence (gesture);
gtk_gesture_get_point (GTK_GESTURE (gesture), sequence, &px, NULL);
gtk_text_get_layout_offsets (self, &tx, NULL);
return px - tx;
}
static void
gtk_text_do_popup (GtkText *self,
double x,
double y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_text_update_clipboard_actions (self);
gtk_text_update_emoji_action (self);
if (!priv->popup_menu)
{
GMenuModel *model;
model = gtk_text_get_menu_model (self);
priv->popup_menu = gtk_popover_menu_new_from_model (model);
gtk_widget_set_parent (priv->popup_menu, GTK_WIDGET (self));
gtk_popover_set_position (GTK_POPOVER (priv->popup_menu), GTK_POS_BOTTOM);
gtk_popover_set_has_arrow (GTK_POPOVER (priv->popup_menu), FALSE );
gtk_widget_set_halign (priv->popup_menu, GTK_ALIGN_START);
gtk_accessible_update_property (GTK_ACCESSIBLE (priv->popup_menu),
GTK_ACCESSIBLE_PROPERTY_LABEL, _("Context menu" ),
-1 );
g_object_unref (model);
}
if (x != -1 && y != -1 )
{
GdkRectangle rect = { x, y, 1 , 1 };
gtk_popover_set_pointing_to (GTK_POPOVER (priv->popup_menu), &rect);
}
else
gtk_popover_set_pointing_to (GTK_POPOVER (priv->popup_menu), NULL);
gtk_popover_popup (GTK_POPOVER (priv->popup_menu));
}
static void
gtk_text_click_gesture_pressed (GtkGestureClick *gesture,
int n_press,
double widget_x,
double widget_y,
GtkText *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkEventSequence *current;
GdkEvent *event;
int x, y, sel_start, sel_end;
guint button;
int tmp_pos;
if (!gtk_widget_has_focus (widget))
{
if (!gtk_widget_get_focus_on_click (widget))
return ;
priv->in_click = TRUE ;
gtk_widget_grab_focus (widget);
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
priv->in_click = FALSE ;
}
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), current);
x = gesture_get_current_point_in_layout (GTK_GESTURE_SINGLE (gesture), self);
y = widget_y;
gtk_text_reset_blink_time (self);
tmp_pos = gtk_text_find_position (self, x);
if (gdk_event_triggers_context_menu (event))
{
gtk_text_do_popup (self, widget_x, widget_y);
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
}
else if (n_press == 1 && button == GDK_BUTTON_MIDDLE &&
get_middle_click_paste (self))
{
if (priv->editable)
{
priv->insert_pos = tmp_pos;
gtk_text_paste (self, gtk_widget_get_primary_clipboard (widget));
}
else
{
gtk_widget_error_bell (widget);
}
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
}
else if (button == GDK_BUTTON_PRIMARY)
{
gboolean have_selection;
gboolean extend_selection;
guint state;
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
sel_start = priv->selection_bound;
sel_end = priv->current_pos;
have_selection = sel_start != sel_end;
priv->text_handles_enabled = gtk_event_treat_as_touch (event);
priv->in_drag = FALSE ;
priv->select_words = FALSE ;
priv->select_lines = FALSE ;
state = gdk_event_get_modifier_state (event);
extend_selection = (state & GDK_SHIFT_MASK) != 0 ;
/* Always emit reset when preedit is shown */
priv->need_im_reset = TRUE ;
gtk_text_reset_im_context (self);
switch (n_press)
{
case 1 :
if (in_selection (self, x))
{
if (gtk_event_treat_as_touch (event))
{
if (priv->selection_bubble &&
gtk_widget_get_visible (priv->selection_bubble))
gtk_text_selection_bubble_popup_unset (self);
else
gtk_text_selection_bubble_popup_set (self);
}
else if (extend_selection)
{
/* Truncate current selection, but keep it as big as possible */
if (tmp_pos - sel_start > sel_end - tmp_pos)
gtk_text_set_positions (self, sel_start, tmp_pos);
else
gtk_text_set_positions (self, tmp_pos, sel_end);
/* all done, so skip the extend_to_left stuff later */
extend_selection = FALSE ;
}
else
{
/* We'll either start a drag, or clear the selection */
priv->in_drag = TRUE ;
priv->drag_start_x = x;
priv->drag_start_y = y;
}
}
else
{
gtk_text_selection_bubble_popup_unset (self);
if (!extend_selection)
{
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
priv->handle_place_time = g_get_monotonic_time ();
}
else
{
/* select from the current position to the clicked position */
if (!have_selection)
sel_start = sel_end = priv->current_pos;
gtk_text_set_positions (self, tmp_pos, tmp_pos);
}
}
break ;
case 2 :
priv->select_words = TRUE ;
gtk_text_select_word (self);
break ;
case 3 :
priv->select_lines = TRUE ;
gtk_text_select_line (self);
break ;
default :
break ;
}
if (extend_selection)
{
gboolean extend_to_left;
int start, end;
start = MIN (priv->current_pos, priv->selection_bound);
start = MIN (sel_start, start);
end = MAX (priv->current_pos, priv->selection_bound);
end = MAX (sel_end, end);
if (tmp_pos == sel_start || tmp_pos == sel_end)
extend_to_left = (tmp_pos == start);
else
extend_to_left = (end == sel_end);
if (extend_to_left)
gtk_text_set_positions (self, start, end);
else
gtk_text_set_positions (self, end, start);
}
gtk_text_update_handles (self);
}
if (n_press >= 3 )
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
}
static void
gtk_text_click_gesture_released (GtkGestureClick *gesture,
int n_press,
double widget_x,
double widget_y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkEvent *event =
gtk_event_controller_get_current_event (GTK_EVENT_CONTROLLER (gesture));
if (n_press == 1 &&
!priv->in_drag &&
gtk_event_treat_as_touch (event) &&
priv->current_pos == priv->selection_bound &&
(gtk_text_get_input_hints (self) & GTK_INPUT_HINT_INHIBIT_OSK) == 0 )
gtk_im_context_activate_osk (priv->im_context, event);
}
static void
gtk_text_long_press_gesture_pressed (GtkGestureLongPress *gesture,
double x,
double y,
GtkText *self)
{
gtk_text_selection_bubble_popup_set (self);
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
}
static char *
_gtk_text_get_selected_text (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
const int start = MIN (priv->selection_bound, priv->current_pos);
const int end = MAX (priv->selection_bound, priv->current_pos);
const char *text = gtk_entry_buffer_get_text (get_buffer (self));
const int start_index = g_utf8_offset_to_pointer (text, start) - text;
const int end_index = g_utf8_offset_to_pointer (text, end) - text;
return g_strndup (text + start_index, end_index - start_index);
}
return NULL;
}
static void
gtk_text_show_magnifier (GtkText *self,
int x,
int y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
cairo_rectangle_int_t rect;
gtk_text_ensure_magnifier (self);
rect.x = x;
rect.width = 1 ;
rect.y = 0 ;
rect.height = text_height;
_gtk_magnifier_set_coords (GTK_MAGNIFIER (priv->magnifier), rect.x,
rect.y + rect.height / 2 );
gtk_popover_set_pointing_to (GTK_POPOVER (priv->magnifier_popover),
&rect);
gtk_popover_popup (GTK_POPOVER (priv->magnifier_popover));
}
static void
gtk_text_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkDevice *device;
device = gtk_event_controller_get_current_event_device (GTK_EVENT_CONTROLLER (controller));
if (priv->mouse_cursor_obscured &&
gdk_device_get_timestamp (device) != priv->obscured_cursor_timestamp)
{
set_text_cursor (GTK_WIDGET (self));
priv->mouse_cursor_obscured = FALSE ;
}
}
static void
dnd_finished_cb (GdkDrag *drag,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (gdk_drag_get_selected_action (drag) == GDK_ACTION_MOVE)
gtk_text_delete_selection (self);
priv->drag = NULL;
}
static void
dnd_cancel_cb (GdkDrag *drag,
GdkDragCancelReason reason,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->drag = NULL;
}
static void
gtk_text_drag_gesture_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkEventSequence *sequence;
GdkEvent *event;
int x, y;
double start_y;
gtk_text_selection_bubble_popup_unset (self);
x = gesture_get_current_point_in_layout (GTK_GESTURE_SINGLE (gesture), self);
gtk_gesture_drag_get_start_point (gesture, NULL, &start_y);
y = start_y + offset_y;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
if (priv->mouse_cursor_obscured)
{
set_text_cursor (widget);
priv->mouse_cursor_obscured = FALSE ;
}
if (priv->select_lines)
return ;
if (priv->in_drag)
{
if (gtk_text_get_display_mode (self) == DISPLAY_NORMAL &&
gtk_drag_check_threshold_double (widget, 0 , 0 , offset_x, offset_y))
{
int *ranges;
int n_ranges;
char *text;
GdkDragAction actions;
GdkDrag *drag;
GdkPaintable *paintable;
GdkContentProvider *content;
text = _gtk_text_get_selected_text (self);
gtk_text_get_pixel_ranges (self, &ranges, &n_ranges);
g_assert (n_ranges > 0 );
if (priv->editable)
actions = GDK_ACTION_COPY|GDK_ACTION_MOVE;
else
actions = GDK_ACTION_COPY;
content = gdk_content_provider_new_typed (G_TYPE_STRING, text);
drag = gdk_drag_begin (gdk_event_get_surface ((GdkEvent*) event),
gdk_event_get_device ((GdkEvent*) event),
content,
actions,
priv->drag_start_x,
priv->drag_start_y);
g_object_unref (content);
g_signal_connect (drag, "dnd-finished" , G_CALLBACK (dnd_finished_cb), self);
g_signal_connect (drag, "cancel" , G_CALLBACK (dnd_cancel_cb), self);
paintable = gtk_text_util_create_drag_icon (widget, text, -1 );
gtk_drag_icon_set_from_paintable (drag, paintable,
(priv->drag_start_x - ranges[0 ]),
priv->drag_start_y);
g_clear_object (&paintable);
priv->drag = drag;
g_object_unref (drag);
g_free (ranges);
g_free (text);
priv->in_drag = FALSE ;
/* Deny the gesture so we don't get further updates */
gtk_gesture_set_state (priv->drag_gesture, GTK_EVENT_SEQUENCE_DENIED);
}
}
else
{
GdkInputSource input_source;
GdkDisplay *display;
GdkDevice *source;
guint length;
int tmp_pos;
int pos, bound;
length = gtk_entry_buffer_get_length (get_buffer (self));
if (y < 0 )
tmp_pos = 0 ;
else if (y >= gtk_widget_get_height (GTK_WIDGET (self)))
tmp_pos = length;
else
tmp_pos = gtk_text_find_position (self, x);
display = gtk_widget_get_display (GTK_WIDGET (self));
source = gdk_event_get_device (event);
input_source = gdk_device_get_source (source);
if (priv->select_words)
{
int min, max;
int old_min, old_max;
min = gtk_text_move_backward_word (self, tmp_pos, TRUE );
max = gtk_text_move_forward_word (self, tmp_pos, TRUE );
pos = priv->current_pos;
bound = priv->selection_bound;
old_min = MIN (priv->current_pos, priv->selection_bound);
old_max = MAX (priv->current_pos, priv->selection_bound);
if (min < old_min)
{
pos = min;
bound = old_max;
}
else if (old_max < max)
{
pos = max;
bound = old_min;
}
else if (pos == old_min)
{
if (priv->current_pos != min)
pos = max;
}
else
{
if (priv->current_pos != max)
pos = min;
}
}
else
{
pos = tmp_pos;
bound = -1 ;
}
if (pos != priv->current_pos)
gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
gtk_text_set_positions (self, pos, bound);
/* Update touch handles' position */
if (GTK_DISPLAY_DEBUG_CHECK (display, TOUCHSCREEN) ||
input_source == GDK_SOURCE_TOUCHSCREEN)
{
priv->text_handles_enabled = TRUE ;
gtk_text_update_handles (self);
gtk_text_show_magnifier (self, x - priv->scroll_offset, y);
}
}
}
static void
gtk_text_drag_gesture_end (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean in_drag;
GdkEventSequence *sequence;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
in_drag = priv->in_drag;
priv->in_drag = FALSE ;
if (priv->magnifier_popover)
gtk_popover_popdown (GTK_POPOVER (priv->magnifier_popover));
/* Check whether the drag was cancelled rather than finished */
if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
return ;
if (in_drag)
{
int tmp_pos = gtk_text_find_position (self, priv->drag_start_x);
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
}
gtk_text_update_handles (self);
gtk_text_update_primary_selection (self);
}
static void
gtk_text_obscure_mouse_cursor (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkDisplay *display;
GdkSeat *seat;
GdkDevice *device;
if (priv->mouse_cursor_obscured)
return ;
gtk_widget_set_cursor_from_name (GTK_WIDGET (self), "none" );
display = gtk_widget_get_display (GTK_WIDGET (self));
seat = gdk_display_get_default_seat (display);
device = gdk_seat_get_pointer (seat);
priv->obscured_cursor_timestamp = gdk_device_get_timestamp (device);
priv->mouse_cursor_obscured = TRUE ;
}
static gboolean
gtk_text_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar unichar;
gtk_text_reset_blink_time (self);
gtk_text_pend_cursor_blink (self);
gtk_text_selection_bubble_popup_unset (self);
priv->text_handles_enabled = FALSE ;
gtk_text_update_handles (self);
if (keyval == GDK_KEY_Return ||
keyval == GDK_KEY_KP_Enter ||
keyval == GDK_KEY_ISO_Enter ||
keyval == GDK_KEY_Escape)
gtk_text_reset_im_context (self);
unichar = gdk_keyval_to_unicode (keyval);
if (!priv->editable && unichar != 0 )
gtk_widget_error_bell (GTK_WIDGET (self));
gtk_text_obscure_mouse_cursor (self);
return FALSE ;
}
static void
gtk_text_focus_changed (GtkEventControllerFocus *controller,
GParamSpec *pspec,
GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_widget_queue_draw (widget);
if (gtk_event_controller_focus_is_focus (controller))
{
gtk_text_im_set_focus_in (self);
gtk_text_reset_blink_time (self);
gtk_text_check_cursor_blink (self);
gtk_text_update_primary_selection (self);
}
else /* Focus out */
{
gtk_text_selection_bubble_popup_unset (self);
priv->text_handles_enabled = FALSE ;
gtk_text_update_handles (self);
if (priv->editable)
{
gtk_text_schedule_im_reset (self);
gtk_im_context_focus_out (priv->im_context);
}
if (priv->blink_tick)
remove_blink_timeout (self);
}
}
static gboolean
gtk_text_grab_focus (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean select_on_focus;
GtkWidget *prev_focus;
gboolean prev_focus_was_child;
prev_focus = gtk_root_get_focus (gtk_widget_get_root (widget));
prev_focus_was_child = prev_focus && gtk_widget_is_ancestor (prev_focus, widget);
if (!GTK_WIDGET_CLASS (gtk_text_parent_class)->grab_focus (GTK_WIDGET (self)))
return FALSE ;
if (priv->editable && !priv->in_click && !prev_focus_was_child)
{
g_object_get (gtk_widget_get_settings (widget),
"gtk-entry-select-on-focus" ,
&select_on_focus,
NULL);
if (select_on_focus)
gtk_text_set_selection_bounds (self, 0 , -1 );
}
return TRUE ;
}
/**
* gtk_text_grab_focus_without_selecting :
* @ self : a text widget
*
* Causes the text widget to have the keyboard focus .
*
* It behaves like [ method @ Gtk . Widget . grab_focus ] ,
* except that it does not select the contents of @ self .
*
* You only want to call this on some special entries
* which the user usually doesn ' t want to replace all
* text in , such as search - as - you - type entries .
*
* Returns : true if focus is now inside @ self
*/
gboolean
gtk_text_grab_focus_without_selecting (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return GTK_WIDGET_CLASS (gtk_text_parent_class)->grab_focus (GTK_WIDGET (self));
}
static void
gtk_text_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_recompute (self);
GTK_WIDGET_CLASS (gtk_text_parent_class)->direction_changed (widget, previous_dir);
}
static void
gtk_text_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkStateFlags state;
state = gtk_widget_get_state_flags (GTK_WIDGET (self));
if (gtk_widget_get_realized (widget))
{
set_text_cursor (widget);
priv->mouse_cursor_obscured = FALSE ;
}
if (!gtk_widget_is_sensitive (widget))
{
/* Clear any selection */
gtk_text_set_selection_bounds (self, priv->current_pos, priv->current_pos);
/* Stop blinking */
remove_blink_timeout (self);
}
state &= ~GTK_STATE_FLAG_DROP_ACTIVE;
if (priv->selection_node)
gtk_css_node_set_state (priv->selection_node, state);
if (priv->block_cursor_node)
gtk_css_node_set_state (priv->block_cursor_node, state);
gtk_css_node_set_state (priv->undershoot_node[0 ], state);
gtk_css_node_set_state (priv->undershoot_node[1 ], state);
gtk_text_update_cached_style_values (self);
gtk_widget_queue_draw (widget);
}
/* GtkEditable method implementations
*/
static void
gtk_text_insert_text (GtkText *self,
const char *text,
int length,
int *position)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int n_inserted;
int n_chars;
if (length == 0 )
return ;
n_chars = g_utf8_strlen (text, length);
/*
* The incoming text may a password or other secret . We make sure
* not to copy it into temporary buffers .
*/
if (priv->change_count == 0 )
gtk_text_history_begin_irreversible_action (priv->history);
begin_change (self);
n_inserted = gtk_entry_buffer_insert_text (get_buffer (self), *position, text, n_chars);
end_change (self);
if (priv->change_count == 0 )
gtk_text_history_end_irreversible_action (priv->history);
if (n_inserted != n_chars)
gtk_widget_error_bell (GTK_WIDGET (self));
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
*position,
*position + n_inserted);
*position += n_inserted;
update_placeholder_visibility (self);
if (priv->propagate_text_width)
gtk_widget_queue_resize (GTK_WIDGET (self));
}
static void
gtk_text_delete_text (GtkText *self,
int start_pos,
int end_pos)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (end_pos < 0 )
end_pos = gtk_entry_buffer_get_length (get_buffer (self));
if (start_pos == end_pos)
return ;
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_REMOVE,
start_pos,
end_pos);
if (priv->change_count == 0 )
gtk_text_history_begin_irreversible_action (priv->history);
begin_change (self);
gtk_entry_buffer_delete_text (get_buffer (self), start_pos, end_pos - start_pos);
end_change (self);
if (priv->change_count == 0 )
gtk_text_history_end_irreversible_action (priv->history);
update_placeholder_visibility (self);
if (priv->propagate_text_width)
gtk_widget_queue_resize (GTK_WIDGET (self));
}
static void
gtk_text_delete_selection (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = MIN (priv->selection_bound, priv->current_pos);
int end_pos = MAX (priv->selection_bound, priv->current_pos);
gtk_editable_delete_text (GTK_EDITABLE (self), start_pos, end_pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_REMOVE,
start_pos, end_pos);
}
static void
gtk_text_set_selection_bounds (GtkText *self,
int start,
int end)
{
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
if (start < 0 )
start = length;
if (end < 0 )
end = length;
gtk_text_reset_im_context (self);
gtk_text_set_positions (self, MIN (end, length), MIN (start, length));
}
static gboolean
gtk_text_get_selection_bounds (GtkText *self,
int *start,
int *end)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
*start = priv->selection_bound;
*end = priv->current_pos;
return (priv->selection_bound != priv->current_pos);
}
static gunichar
find_invisible_char (GtkWidget *widget)
{
PangoLayout *layout;
PangoAttrList *attr_list;
int i;
gunichar invisible_chars [] = {
0 x25cf, /* BLACK CIRCLE */
0 x2022, /* BULLET */
0 x2731, /* HEAVY ASTERISK */
0 x273a /* SIXTEEN POINTED ASTERISK */
};
layout = gtk_widget_create_pango_layout (widget, NULL);
attr_list = pango_attr_list_new ();
pango_attr_list_insert (attr_list, pango_attr_fallback_new (FALSE ));
pango_layout_set_attributes (layout, attr_list);
pango_attr_list_unref (attr_list);
for (i = 0 ; i < G_N_ELEMENTS (invisible_chars); i++)
{
char text[7 ] = { 0 , };
int len, count;
len = g_unichar_to_utf8 (invisible_chars[i], text);
pango_layout_set_text (layout, text, len);
count = pango_layout_get_unknown_glyphs_count (layout);
if (count == 0 )
{
g_object_unref (layout);
return invisible_chars[i];
}
}
g_object_unref (layout);
return '*' ;
}
static void
gtk_text_update_cached_style_values (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->visible && !priv->invisible_char_set)
{
gunichar ch = find_invisible_char (GTK_WIDGET (self));
if (priv->invisible_char != ch)
{
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
}
}
}
static void
gtk_text_css_changed (GtkWidget *widget,
GtkCssStyleChange *change)
{
GtkText *self = GTK_TEXT (widget);
GTK_WIDGET_CLASS (gtk_text_parent_class)->css_changed (widget, change);
gtk_text_update_cached_style_values (self);
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_TEXT |
GTK_CSS_AFFECTS_BACKGROUND |
GTK_CSS_AFFECTS_CONTENT))
gtk_widget_queue_draw (widget);
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_TEXT_ATTRS))
gtk_text_recompute (self);
}
static void
gtk_text_password_hint_free (GtkTextPasswordHint *password_hint)
{
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
g_free (password_hint);
}
static gboolean
gtk_text_remove_password_hint (gpointer data)
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (data, quark_password_hint);
password_hint->position = -1 ;
password_hint->source_id = 0 ;
/* Force the string to be redrawn, but now without a visible character */
gtk_text_recompute (GTK_TEXT (data));
return G_SOURCE_REMOVE;
}
static void
update_placeholder_visibility (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->placeholder)
gtk_widget_set_child_visible (priv->placeholder,
priv->preedit_length == 0 &&
(priv->buffer == NULL ||
gtk_entry_buffer_get_length (priv->buffer) == 0 ));
}
/* GtkEntryBuffer signal handlers
*/
static void
buffer_inserted_text (GtkEntryBuffer *buffer,
guint position,
const char *chars,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint password_hint_timeout;
guint current_pos;
int selection_bound;
current_pos = priv->current_pos;
if (current_pos > position)
current_pos += n_chars;
selection_bound = priv->selection_bound;
if (selection_bound > position)
selection_bound += n_chars;
gtk_text_set_positions (self, current_pos, selection_bound);
gtk_text_recompute (self);
gtk_text_history_text_inserted (priv->history, position, chars, -1 );
/* Calculate the password hint if it needs to be displayed. */
if (n_chars == 1 && !priv->visible)
{
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-entry-password-hint-timeout" , &password_hint_timeout,
NULL);
if (password_hint_timeout > 0 )
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (G_OBJECT (self),
quark_password_hint);
if (!password_hint)
{
password_hint = g_new0 (GtkTextPasswordHint, 1 );
g_object_set_qdata_full (G_OBJECT (self), quark_password_hint, password_hint,
(GDestroyNotify)gtk_text_password_hint_free);
}
password_hint->position = position;
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
password_hint->source_id = g_timeout_add (password_hint_timeout,
(GSourceFunc)gtk_text_remove_password_hint,
self);
gdk_source_set_static_name_by_id (password_hint->source_id, "[gtk] gtk_text_remove_password_hint" );
}
}
}
static void
buffer_deleted_text (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint end_pos = position + n_chars;
if (gtk_text_history_get_enabled (priv->history))
{
char *deleted_text;
deleted_text = gtk_editable_get_chars (GTK_EDITABLE (self),
position,
end_pos);
gtk_text_history_selection_changed (priv->history,
priv->current_pos,
priv->selection_bound);
gtk_text_history_text_deleted (priv->history,
position,
end_pos,
deleted_text,
-1 );
g_free (deleted_text);
}
}
static void
buffer_deleted_text_after (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint end_pos = position + n_chars;
int selection_bound;
guint current_pos;
current_pos = priv->current_pos;
if (current_pos > position)
current_pos -= MIN (current_pos, end_pos) - position;
selection_bound = priv->selection_bound;
if (selection_bound > position)
selection_bound -= MIN (selection_bound, end_pos) - position;
gtk_text_set_positions (self, current_pos, selection_bound);
gtk_text_recompute (self);
/* We might have deleted the selection */
gtk_text_update_primary_selection (self);
/* Disable the password hint if one exists. */
if (!priv->visible)
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (G_OBJECT (self),
quark_password_hint);
if (password_hint)
{
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
password_hint->source_id = 0 ;
password_hint->position = -1 ;
}
}
}
static void
buffer_notify_text (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self)
{
emit_changed (self);
update_placeholder_visibility (self);
g_object_notify (G_OBJECT (self), "text" );
g_object_notify (G_OBJECT (self), "complete-text" );
}
static void
buffer_notify_max_length (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self)
{
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_MAX_LENGTH]);
}
static void
buffer_connect_signals (GtkText *self)
{
g_signal_connect (get_buffer (self), "inserted-text" , G_CALLBACK (buffer_inserted_text), self);
g_signal_connect (get_buffer (self), "deleted-text" , G_CALLBACK (buffer_deleted_text), self);
g_signal_connect_after (get_buffer (self), "deleted-text" , G_CALLBACK (buffer_deleted_text_after), self);
g_signal_connect (get_buffer (self), "notify::text" , G_CALLBACK (buffer_notify_text), self);
g_signal_connect (get_buffer (self), "notify::max-length" , G_CALLBACK (buffer_notify_max_length), self);
}
static void
buffer_disconnect_signals (GtkText *self)
{
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_inserted_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_deleted_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_deleted_text_after, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_notify_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_notify_max_length, self);
}
/* Compute the X position for an offset that corresponds to the "more important
* cursor position for that offset . We use this when trying to guess to which
* end of the selection we should go to when the user hits the left or
* right arrow key .
*/
static int
get_better_cursor_x (GtkText *self,
int offset)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkSeat *seat;
GdkDevice *keyboard = NULL;
PangoDirection direction = PANGO_DIRECTION_LTR;
gboolean split_cursor;
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE );
const char *text = pango_layout_get_text (layout);
int index = g_utf8_offset_to_pointer (text, offset) - text;
PangoRectangle strong_pos, weak_pos;
seat = gdk_display_get_default_seat (gtk_widget_get_display (GTK_WIDGET (self)));
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
direction = gdk_device_get_direction (keyboard);
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-split-cursor" , &split_cursor,
NULL);
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
if (split_cursor)
return strong_pos.x / PANGO_SCALE;
else
return (direction == priv->resolved_dir) ? strong_pos.x / PANGO_SCALE : weak_pos.x / PANGO_SCALE;
}
static void
selection_style_changed_cb (GtkCssNode *node,
GtkCssStyleChange *change,
GtkText *self)
{
if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_REDRAW))
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
gtk_text_move_cursor (GtkText *self,
GtkMovementStep step,
int count,
gboolean extend_selection)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int new_pos = priv->current_pos;
if (priv->current_pos != priv->selection_bound && !extend_selection)
{
/* If we have a current selection and aren't extending it, move to the
* start / or end of the selection as appropriate
*/
switch (step)
{
case GTK_MOVEMENT_VISUAL_POSITIONS:
{
int current_x = get_better_cursor_x (self, priv->current_pos);
int bound_x = get_better_cursor_x (self, priv->selection_bound);
if (count <= 0 )
new_pos = current_x < bound_x ? priv->current_pos : priv->selection_bound;
else
new_pos = current_x > bound_x ? priv->current_pos : priv->selection_bound;
}
break ;
case GTK_MOVEMENT_WORDS:
if (priv->resolved_dir == PANGO_DIRECTION_RTL)
count *= -1 ;
G_GNUC_FALLTHROUGH;
case GTK_MOVEMENT_LOGICAL_POSITIONS:
if (count < 0 )
new_pos = MIN (priv->current_pos, priv->selection_bound);
else
new_pos = MAX (priv->current_pos, priv->selection_bound);
break ;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_BUFFER_ENDS:
new_pos = count < 0 ? 0 : gtk_entry_buffer_get_length (get_buffer (self));
break ;
case GTK_MOVEMENT_DISPLAY_LINES:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PAGES:
case GTK_MOVEMENT_HORIZONTAL_PAGES:
default :
break ;
}
}
else
{
switch (step)
{
case GTK_MOVEMENT_LOGICAL_POSITIONS:
new_pos = gtk_text_move_logically (self, new_pos, count);
break ;
case GTK_MOVEMENT_VISUAL_POSITIONS:
new_pos = gtk_text_move_visually (self, new_pos, count);
if (priv->current_pos == new_pos)
{
if (!extend_selection)
{
if (!gtk_widget_keynav_failed (GTK_WIDGET (self),
count > 0 ?
GTK_DIR_RIGHT : GTK_DIR_LEFT))
{
GtkWidget *toplevel = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (self)));
if (toplevel)
gtk_widget_child_focus (toplevel,
count > 0 ?
GTK_DIR_RIGHT : GTK_DIR_LEFT);
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
}
break ;
case GTK_MOVEMENT_WORDS:
if (priv->resolved_dir == PANGO_DIRECTION_RTL)
count *= -1 ;
while (count > 0 )
{
new_pos = gtk_text_move_forward_word (self, new_pos, FALSE );
count--;
}
while (count < 0 )
{
new_pos = gtk_text_move_backward_word (self, new_pos, FALSE );
count++;
}
if (priv->current_pos == new_pos)
gtk_widget_error_bell (GTK_WIDGET (self));
break ;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_BUFFER_ENDS:
new_pos = count < 0 ? 0 : gtk_entry_buffer_get_length (get_buffer (self));
if (priv->current_pos == new_pos)
gtk_widget_error_bell (GTK_WIDGET (self));
break ;
case GTK_MOVEMENT_DISPLAY_LINES:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PAGES:
case GTK_MOVEMENT_HORIZONTAL_PAGES:
default :
break ;
}
}
if (extend_selection)
gtk_text_set_selection_bounds (self, priv->selection_bound, new_pos);
else
gtk_text_set_selection_bounds (self, new_pos, new_pos);
gtk_text_pend_cursor_blink (self);
priv->need_im_reset = TRUE ;
gtk_text_reset_im_context (self);
}
static void
gtk_text_insert_at_cursor (GtkText *self,
const char *str)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int pos = priv->current_pos;
if (priv->editable)
{
begin_change (self);
gtk_text_reset_im_context (self);
gtk_editable_insert_text (GTK_EDITABLE (self), str, -1 , &pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
pos,
pos + g_utf8_strlen (str, -1 ));
gtk_text_set_selection_bounds (self, pos, pos);
end_change (self);
}
}
static void
gtk_text_delete_from_cursor (GtkText *self,
GtkDeleteType type,
int count)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = priv->current_pos;
int end_pos = priv->current_pos;
int old_n_bytes = gtk_entry_buffer_get_bytes (get_buffer (self));
if (!priv->editable)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return ;
}
begin_change (self);
if (priv->selection_bound != priv->current_pos)
{
gtk_text_delete_selection (self);
gtk_text_schedule_im_reset (self);
gtk_text_reset_im_context (self);
goto done;
}
switch (type)
{
case GTK_DELETE_CHARS:
end_pos = gtk_text_move_logically (self, priv->current_pos, count);
gtk_editable_delete_text (GTK_EDITABLE (self), MIN (start_pos, end_pos), MAX (start_pos, end_pos));
break ;
case GTK_DELETE_WORDS:
if (count < 0 )
{
/* Move to end of current word, or if not on a word, end of previous word */
end_pos = gtk_text_move_backward_word (self, end_pos, FALSE );
end_pos = gtk_text_move_forward_word (self, end_pos, FALSE );
}
else if (count > 0 )
{
/* Move to beginning of current word, or if not on a word, beginning of next word */
start_pos = gtk_text_move_forward_word (self, start_pos, FALSE );
start_pos = gtk_text_move_backward_word (self, start_pos, FALSE );
}
G_GNUC_FALLTHROUGH;
case GTK_DELETE_WORD_ENDS:
while (count < 0 )
{
start_pos = gtk_text_move_backward_word (self, start_pos, FALSE );
count++;
}
while (count > 0 )
{
end_pos = gtk_text_move_forward_word (self, end_pos, FALSE );
count--;
}
gtk_editable_delete_text (GTK_EDITABLE (self), start_pos, end_pos);
break ;
case GTK_DELETE_DISPLAY_LINE_ENDS:
case GTK_DELETE_PARAGRAPH_ENDS:
if (count < 0 )
gtk_editable_delete_text (GTK_EDITABLE (self), 0 , priv->current_pos);
else
gtk_editable_delete_text (GTK_EDITABLE (self), priv->current_pos, -1 );
break ;
case GTK_DELETE_DISPLAY_LINES:
case GTK_DELETE_PARAGRAPHS:
gtk_editable_delete_text (GTK_EDITABLE (self), 0 , -1 );
break ;
case GTK_DELETE_WHITESPACE:
gtk_text_delete_whitespace (self);
break ;
default :
break ;
}
if (gtk_entry_buffer_get_bytes (get_buffer (self)) == old_n_bytes)
gtk_widget_error_bell (GTK_WIDGET (self));
else
{
gtk_text_schedule_im_reset (self);
gtk_text_reset_im_context (self);
}
done:
end_change (self);
gtk_text_pend_cursor_blink (self);
}
static void
gtk_text_backspace (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int prev_pos;
if (!priv->editable)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return ;
}
begin_change (self);
if (priv->selection_bound != priv->current_pos)
{
gtk_text_delete_selection (self);
gtk_text_schedule_im_reset (self);
gtk_text_reset_im_context (self);
goto done;
}
prev_pos = gtk_text_move_logically (self, priv->current_pos, -1 );
if (prev_pos < priv->current_pos)
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
/* Deleting parts of characters */
if (log_attrs[priv->current_pos].backspace_deletes_character)
{
char *cluster_text;
char *normalized_text;
glong len;
cluster_text = gtk_text_get_display_text (self, prev_pos, priv->current_pos);
normalized_text = g_utf8_normalize (cluster_text,
strlen (cluster_text),
G_NORMALIZE_NFD);
len = g_utf8_strlen (normalized_text, -1 );
gtk_editable_delete_text (GTK_EDITABLE (self), prev_pos, priv->current_pos);
if (len > 1 )
{
int pos = priv->current_pos;
gtk_editable_insert_text (GTK_EDITABLE (self), normalized_text,
g_utf8_offset_to_pointer (normalized_text, len - 1 ) - normalized_text,
&pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
pos,
pos + len);
gtk_text_set_selection_bounds (self, pos, pos);
}
g_free (normalized_text);
g_free (cluster_text);
}
else
{
gtk_editable_delete_text (GTK_EDITABLE (self), prev_pos, priv->current_pos);
}
gtk_text_schedule_im_reset (self);
gtk_text_reset_im_context (self);
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
done:
end_change (self);
gtk_text_pend_cursor_blink (self);
}
static void
gtk_text_copy_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
char *str;
if (!priv->visible)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return ;
}
if (priv->selection_bound < priv->current_pos)
str = gtk_text_get_display_text (self, priv->selection_bound, priv->current_pos);
else
str = gtk_text_get_display_text (self, priv->current_pos, priv->selection_bound);
gdk_clipboard_set_text (gtk_widget_get_clipboard (GTK_WIDGET (self)), str);
g_free (str);
}
}
static void
gtk_text_cut_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->visible)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return ;
}
gtk_text_copy_clipboard (self);
if (priv->editable)
{
if (priv->selection_bound != priv->current_pos)
{
begin_change (self);
gtk_text_delete_selection (self);
end_change (self);
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
gtk_text_selection_bubble_popup_unset (self);
gtk_text_update_handles (self);
}
static void
gtk_text_paste_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
begin_change (self);
gtk_text_paste (self, gtk_widget_get_clipboard (GTK_WIDGET (self)));
end_change (self);
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
gtk_text_update_handles (self);
}
static void
gtk_text_delete_cb (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
}
}
static void
gtk_text_toggle_overwrite (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->overwrite_mode = !priv->overwrite_mode;
if (priv->overwrite_mode)
{
if (!priv->block_cursor_node)
{
GtkCssNode *widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
priv->block_cursor_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->block_cursor_node, g_quark_from_static_string ("block-cursor" ));
gtk_css_node_set_parent (priv->block_cursor_node, widget_node);
gtk_css_node_set_state (priv->block_cursor_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->block_cursor_node);
}
}
else
{
if (priv->block_cursor_node)
{
gtk_css_node_set_parent (priv->block_cursor_node, NULL);
priv->block_cursor_node = NULL;
}
}
gtk_text_pend_cursor_blink (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static gboolean
gtk_text_select_all (GtkText *self)
{
gtk_text_select_line (self);
return TRUE ;
}
static void
gtk_text_real_activate (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->activates_default)
gtk_widget_activate_default (GTK_WIDGET (self));
}
/* IM Context Callbacks
*/
static void
gtk_text_preedit_start_cb (GtkIMContext *context,
GtkText *self)
{
gtk_text_delete_selection (self);
}
static void
gtk_text_commit_cb (GtkIMContext *context,
const char *str,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
gtk_text_enter_text (self, str);
gtk_text_obscure_mouse_cursor (self);
}
}
static void
gtk_text_preedit_changed_cb (GtkIMContext *context,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
char *preedit_string;
int cursor_pos;
gtk_text_obscure_mouse_cursor (self);
gtk_im_context_get_preedit_string (priv->im_context,
&preedit_string, NULL,
&cursor_pos);
g_signal_emit (self, signals[PREEDIT_CHANGED], 0 , preedit_string);
priv->preedit_length = strlen (preedit_string);
priv->preedit_length_c = g_utf8_strlen (preedit_string, -1 );
cursor_pos = CLAMP (cursor_pos, 0 , priv->preedit_length_c);
priv->preedit_cursor = cursor_pos;
g_free (preedit_string);
gtk_text_recompute (self);
emit_changed (self);
update_placeholder_visibility (self);
g_object_notify (G_OBJECT (self), "complete-text" );
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
g_signal_emit_by_name (self, "input-intercepted" );
}
}
static gboolean
gtk_text_retrieve_surrounding_cb (GtkIMContext *context,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
char *text;
/* XXXX ??? does this even make sense when text is not visible? Should we return FALSE? */
text = gtk_text_get_display_text (self, 0 , -1 );
gtk_im_context_set_surrounding_with_selection (context, text, strlen (text), /* Length in bytes */
g_utf8_offset_to_pointer (text, priv->current_pos) - text,
g_utf8_offset_to_pointer (text, priv->selection_bound) - text);
g_free (text);
return TRUE ;
}
static gboolean
gtk_text_delete_surrounding_cb (GtkIMContext *context,
int offset,
int n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
gtk_editable_delete_text (GTK_EDITABLE (self),
priv->current_pos + offset,
priv->current_pos + offset + n_chars);
}
return TRUE ;
}
/* Internal functions
*/
/* Used for im_commit_cb and inserting Unicode chars */
void
gtk_text_enter_text (GtkText *self,
const char *str)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int tmp_pos;
guint text_length;
gtk_text_history_begin_user_action (priv->history);
begin_change (self);
priv->need_im_reset = FALSE ;
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
else
{
if (priv->overwrite_mode)
{
text_length = gtk_entry_buffer_get_length (get_buffer (self));
if (priv->current_pos < text_length)
gtk_text_delete_from_cursor (self, GTK_DELETE_CHARS, 1 );
}
}
tmp_pos = priv->current_pos;
/* We do not need to notify the accessible text contents change
* here , the insert_text ( ) call will take care of it
*/
gtk_editable_insert_text (GTK_EDITABLE (self), str, strlen (str), &tmp_pos);
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
end_change (self);
gtk_text_history_end_user_action (priv->history);
}
/* All changes to priv->current_pos and priv->selection_bound
* should go through this function .
*/
void
gtk_text_set_positions (GtkText *self,
int current_pos,
int selection_bound)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean changed = FALSE ;
g_object_freeze_notify (G_OBJECT (self));
if (current_pos != -1 &&
priv->current_pos != current_pos)
{
priv->current_pos = current_pos;
changed = TRUE ;
g_object_notify (G_OBJECT (self), "cursor-position" );
}
if (selection_bound != -1 &&
priv->selection_bound != selection_bound)
{
priv->selection_bound = selection_bound;
changed = TRUE ;
g_object_notify (G_OBJECT (self), "selection-bound" );
}
g_object_thaw_notify (G_OBJECT (self));
if (priv->current_pos != priv->selection_bound)
{
if (!priv->selection_node)
{
GtkCssNode *widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
priv->selection_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->selection_node, g_quark_from_static_string ("selection" ));
gtk_css_node_set_parent (priv->selection_node, widget_node);
gtk_css_node_set_state (priv->selection_node, gtk_css_node_get_state (widget_node));
g_signal_connect (priv->selection_node, "style-changed" ,
G_CALLBACK (selection_style_changed_cb), self);
g_object_unref (priv->selection_node);
}
}
else
{
if (priv->selection_node)
{
gtk_css_node_set_parent (priv->selection_node, NULL);
priv->selection_node = NULL;
}
}
if (changed)
{
gtk_text_update_clipboard_actions (self);
gtk_text_recompute (self);
gtk_text_update_primary_selection (self);
gtk_accessible_text_update_caret_position (GTK_ACCESSIBLE_TEXT (self));
gtk_accessible_text_update_selection_bound (GTK_ACCESSIBLE_TEXT (self));
}
}
static void
gtk_text_reset_layout (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_clear_object (&priv->cached_layout);
}
static void
gtk_text_recompute (GtkText *self)
{
gtk_text_reset_layout (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
if (!gtk_widget_get_mapped (GTK_WIDGET (self)))
return ;
gtk_text_check_cursor_blink (self);
gtk_text_adjust_scroll (self);
update_im_cursor_location (self);
gtk_text_update_handles (self);
}
static void
update_resolved_dir (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL)
priv->resolved_dir = PANGO_DIRECTION_RTL;
else
priv->resolved_dir = PANGO_DIRECTION_LTR;
}
static PangoLayout *
gtk_text_create_layout (GtkText *self,
gboolean include_preedit)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
PangoLayout *layout;
PangoAttrList *tmp_attrs = NULL;
char *preedit_string = NULL;
int preedit_length = 0 ;
PangoAttrList *preedit_attrs = NULL;
char *display_text;
guint n_bytes;
layout = gtk_widget_create_pango_layout (widget, NULL);
pango_layout_set_single_paragraph_mode (layout, TRUE );
tmp_attrs = gtk_css_style_get_pango_attributes (gtk_css_node_get_style (gtk_widget_get_css_node (widget)));
if (!tmp_attrs)
tmp_attrs = pango_attr_list_new ();
tmp_attrs = _gtk_pango_attr_list_merge (tmp_attrs, priv->attrs);
display_text = gtk_text_get_display_text (self, 0 , -1 );
n_bytes = strlen (display_text);
if (include_preedit)
{
gtk_im_context_get_preedit_string (priv->im_context,
&preedit_string, &preedit_attrs, NULL);
preedit_length = priv->preedit_length;
}
if (preedit_length)
{
GString *tmp_string = g_string_new (display_text);
int pos;
pos = g_utf8_offset_to_pointer (display_text, priv->current_pos) - display_text;
g_string_insert (tmp_string, pos, preedit_string);
pango_layout_set_text (layout, tmp_string->str, tmp_string->len);
pango_attr_list_splice (tmp_attrs, preedit_attrs, pos, preedit_length);
g_string_free (tmp_string, TRUE );
}
else
{
pango_layout_set_text (layout, display_text, n_bytes);
}
update_resolved_dir (self);
pango_layout_set_attributes (layout, tmp_attrs);
if (priv->tabs)
pango_layout_set_tabs (layout, priv->tabs);
g_free (preedit_string);
g_free (display_text);
pango_attr_list_unref (preedit_attrs);
pango_attr_list_unref (tmp_attrs);
return layout;
}
static PangoLayout *
gtk_text_ensure_layout (GtkText *self,
gboolean include_preedit)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->preedit_length > 0 &&
!include_preedit != !priv->cache_includes_preedit)
gtk_text_reset_layout (self);
if (!priv->cached_layout)
{
priv->cached_layout = gtk_text_create_layout (self, include_preedit);
priv->cache_includes_preedit = include_preedit;
}
return priv->cached_layout;
}
static void
get_layout_position (GtkText *self,
int *x,
int *y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
PangoLayout *layout;
PangoRectangle logical_rect;
int y_pos, area_height;
PangoLayoutLine *line;
layout = gtk_text_ensure_layout (self, TRUE );
area_height = PANGO_SCALE * text_height;
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Align primarily for locale's ascent/descent */
if (priv->text_baseline < 0 )
y_pos = ((area_height - priv->ascent - priv->descent) / 2 +
priv->ascent + logical_rect.y);
else
y_pos = PANGO_SCALE * priv->text_baseline - pango_layout_get_baseline (layout);
/* Now see if we need to adjust to fit in actual drawn string */
if (logical_rect.height > area_height)
y_pos = (area_height - logical_rect.height) / 2 ;
else if (y_pos < 0 )
y_pos = 0 ;
else if (y_pos + logical_rect.height > area_height)
y_pos = area_height - logical_rect.height;
y_pos = y_pos / PANGO_SCALE;
if (x)
*x = - priv->scroll_offset;
if (y)
*y = y_pos;
}
#define GRAPHENE_RECT_FROM_RECT(_r) (GRAPHENE_RECT_INIT ((_r)->x, (_r)->y, (_r)->width, (_r)->height))
static void
gtk_text_draw_text (GtkText *self,
GtkSnapshot *snapshot)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
GtkCssStyle *style;
PangoLayout *layout;
int x, y;
GtkCssBoxes boxes;
/* Nothing to display at all */
if (gtk_text_get_display_mode (self) == DISPLAY_BLANK)
return ;
layout = gtk_text_ensure_layout (self, TRUE );
gtk_text_get_layout_offsets (self, &x, &y);
gtk_css_boxes_init (&boxes, widget);
gtk_css_style_snapshot_layout (&boxes, snapshot, x, y, layout);
if (priv->selection_bound != priv->current_pos)
{
const char *text = pango_layout_get_text (layout);
int start_index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
int end_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
cairo_region_t *clip;
cairo_rectangle_int_t clip_extents;
int range[2 ];
int width, height;
width = gtk_widget_get_width (widget);
height = gtk_widget_get_height (widget);
range[0 ] = MIN (start_index, end_index);
range[1 ] = MAX (start_index, end_index);
style = gtk_css_node_get_style (priv->selection_node);
clip = gdk_pango_layout_get_clip_region (layout, x, y, range, 1 );
cairo_region_get_extents (clip, &clip_extents);
gtk_css_boxes_init_border_box (&boxes, style, 0 , 0 , width, height);
gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_FROM_RECT (&clip_extents));
gtk_css_style_snapshot_background (&boxes, snapshot);
gtk_css_style_snapshot_layout (&boxes, snapshot, x, y, layout);
gtk_snapshot_pop (snapshot);
cairo_region_destroy (clip);
}
}
static void
gtk_text_draw_cursor (GtkText *self,
GtkSnapshot *snapshot,
CursorType type)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
GtkCssStyle *style;
PangoRectangle cursor_rect;
int cursor_index;
gboolean block_at_line_end;
PangoLayout *layout;
const char *text;
int x, y;
GtkCssBoxes boxes;
GdkDisplay *display;
display = gtk_widget_get_display (widget);
layout = g_object_ref (gtk_text_ensure_layout (self, TRUE ));
text = pango_layout_get_text (layout);
gtk_text_get_layout_offsets (self, &x, &y);
if (type == CURSOR_DND)
cursor_index = g_utf8_offset_to_pointer (text, priv->dnd_position) - text;
else
cursor_index = g_utf8_offset_to_pointer (text, priv->current_pos + priv->preedit_cursor) - text;
if (!priv->overwrite_mode ||
!_gtk_text_util_get_block_cursor_location (layout,
cursor_index, &cursor_rect, &block_at_line_end))
{
gtk_css_boxes_init (&boxes, widget);
gtk_css_style_snapshot_caret (&boxes, display, snapshot,
x, y,
layout, cursor_index, priv->resolved_dir);
}
else /* overwrite_mode */
{
int width = gtk_widget_get_width (widget);
int height = gtk_widget_get_height (widget);
graphene_rect_t bounds;
bounds.origin.x = PANGO_PIXELS (cursor_rect.x) + x;
bounds.origin.y = PANGO_PIXELS (cursor_rect.y) + y;
bounds.size.width = PANGO_PIXELS (cursor_rect.width);
bounds.size.height = PANGO_PIXELS (cursor_rect.height);
style = gtk_css_node_get_style (priv->block_cursor_node);
gtk_css_boxes_init_border_box (&boxes, style, 0 , 0 , width, height);
gtk_snapshot_push_clip (snapshot, &bounds);
gtk_css_style_snapshot_background (&boxes, snapshot);
gtk_css_style_snapshot_layout (&boxes, snapshot, x, y, layout);
gtk_snapshot_pop (snapshot);
}
g_object_unref (layout);
}
static void
gtk_text_handle_dragged (GtkTextHandle *handle,
int x,
int y,
GtkText *self)
{
int cursor_pos, selection_bound_pos, tmp_pos, *old_pos;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_text_selection_bubble_popup_unset (self);
cursor_pos = priv->current_pos;
selection_bound_pos = priv->selection_bound;
tmp_pos = gtk_text_find_position (self, x + priv->scroll_offset);
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR])
{
/* Avoid running past the other handle in selection mode */
if (tmp_pos >= selection_bound_pos &&
gtk_widget_is_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])))
{
tmp_pos = selection_bound_pos - 1 ;
}
old_pos = &cursor_pos;
}
else if (handle == priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
{
/* Avoid running past the other handle */
if (tmp_pos <= cursor_pos)
tmp_pos = cursor_pos + 1 ;
old_pos = &selection_bound_pos;
}
else
g_assert_not_reached ();
if (tmp_pos != *old_pos)
{
*old_pos = tmp_pos;
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR] &&
!gtk_widget_is_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])))
gtk_text_set_positions (self, cursor_pos, cursor_pos);
else
gtk_text_set_positions (self, cursor_pos, selection_bound_pos);
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR])
priv->cursor_handle_dragged = TRUE ;
else if (handle == priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
priv->selection_handle_dragged = TRUE ;
gtk_text_update_handles (self);
}
gtk_text_show_magnifier (self, x, y);
}
static void
gtk_text_handle_drag_started (GtkTextHandle *handle,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->cursor_handle_dragged = FALSE ;
priv->selection_handle_dragged = FALSE ;
}
static void
gtk_text_handle_drag_finished (GtkTextHandle *handle,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->cursor_handle_dragged && !priv->selection_handle_dragged)
{
GtkSettings *settings;
guint double_click_time;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-double-click-time" , &double_click_time, NULL);
if (g_get_monotonic_time() - priv->handle_place_time < double_click_time * 1000 )
{
gtk_text_select_word (self);
gtk_text_update_handles (self);
}
else
gtk_text_selection_bubble_popup_set (self);
}
if (priv->magnifier_popover)
gtk_popover_popdown (GTK_POPOVER (priv->magnifier_popover));
}
static void
gtk_text_schedule_im_reset (GtkText *self)
{
GtkTextPrivate *priv;
priv = gtk_text_get_instance_private (self);
priv->need_im_reset = TRUE ;
}
void
gtk_text_reset_im_context (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->need_im_reset)
{
priv->need_im_reset = FALSE ;
gtk_im_context_reset (priv->im_context);
}
}
static int
gtk_text_find_position (GtkText *self,
int x)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout;
PangoLayoutLine *line;
int index;
int pos;
int trailing;
const char *text;
int cursor_index;
layout = gtk_text_ensure_layout (self, TRUE );
text = pango_layout_get_text (layout);
cursor_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing);
if (index >= cursor_index && priv->preedit_length)
{
if (index >= cursor_index + priv->preedit_length)
index -= priv->preedit_length;
else
{
index = cursor_index;
trailing = 0 ;
}
}
pos = g_utf8_pointer_to_offset (text, text + index);
pos += trailing;
return pos;
}
static void
gtk_text_get_caret_locations (GtkText *self,
PangoRectangle *strong,
PangoRectangle *weak)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
DisplayMode mode = gtk_text_get_display_mode (self);
if (mode == DISPLAY_BLANK)
{
if (strong)
{
strong->x = 0 ;
strong->width = 0 ;
}
if (weak)
{
weak->x = 0 ;
weak->width = 0 ;
}
}
else
{
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE );
const char *text = pango_layout_get_text (layout);
int index;
index = g_utf8_offset_to_pointer (text, priv->current_pos + priv->preedit_cursor) - text;
pango_layout_get_caret_pos (layout, index, strong, weak);
if (strong)
pango_extents_to_pixels (strong, NULL);
if (weak)
pango_extents_to_pixels (weak, NULL);
}
}
static void
gtk_text_get_cursor_locations (GtkText *self,
int *strong_x,
int *weak_x)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
DisplayMode mode = gtk_text_get_display_mode (self);
/* Nothing to display at all, so no cursor is relevant */
if (mode == DISPLAY_BLANK)
{
if (strong_x)
*strong_x = 0 ;
if (weak_x)
*weak_x = 0 ;
}
else
{
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE );
const char *text = pango_layout_get_text (layout);
PangoRectangle strong_pos, weak_pos;
int index;
index = g_utf8_offset_to_pointer (text, priv->current_pos + priv->preedit_cursor) - text;
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
if (strong_x)
*strong_x = strong_pos.x / PANGO_SCALE;
if (weak_x)
*weak_x = weak_pos.x / PANGO_SCALE;
}
}
static gboolean
gtk_text_get_is_selection_handle_dragged (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkTextHandle *handle;
if (priv->current_pos >= priv->selection_bound)
handle = priv->text_handles[TEXT_HANDLE_CURSOR];
else
handle = priv->text_handles[TEXT_HANDLE_SELECTION_BOUND];
return handle && gtk_text_handle_get_is_dragged (handle);
}
static void
gtk_text_get_scroll_limits (GtkText *self,
int *min_offset,
int *max_offset)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
float xalign;
PangoLayout *layout;
PangoLayoutLine *line;
PangoRectangle logical_rect;
int text_width, width;
layout = gtk_text_ensure_layout (self, TRUE );
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Display as much text as we can */
if (priv->resolved_dir == PANGO_DIRECTION_LTR)
xalign = priv->xalign;
else
xalign = 1 .0 - priv->xalign;
text_width = PANGO_PIXELS(logical_rect.width);
width = gtk_widget_get_width (GTK_WIDGET (self));
if (text_width > width)
{
*min_offset = 0 ;
*max_offset = text_width - width;
}
else
{
*min_offset = (text_width - width) * xalign;
*max_offset = *min_offset;
}
}
static void
gtk_text_adjust_scroll (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
int min_offset, max_offset;
PangoRectangle strong, weak;
if (!gtk_widget_get_realized (GTK_WIDGET (self)))
return ;
gtk_text_get_scroll_limits (self, &min_offset, &max_offset);
priv->scroll_offset = CLAMP (priv->scroll_offset, min_offset, max_offset);
if (gtk_text_get_is_selection_handle_dragged (self))
{
/* The text handle corresponding to the selection bound is
* being dragged , ensure it stays onscreen even if we scroll
* cursors away , this is so both handles can cause content
* to scroll .
*/
strong.x = weak.x = gtk_text_get_selection_bound_location (self);
strong.width = weak.width = 1 ;
}
else
{
/* And make sure cursors are on screen.
*
* We always make sure that the strong cursor is on screen , and
* put the weak cursor on screen if possible .
*/
gtk_text_get_caret_locations (self, &strong, &weak);
}
if (strong.x - priv->scroll_offset < 0 )
{
priv->scroll_offset = strong.x;
}
else if (strong.x + strong.width - priv->scroll_offset > text_width)
{
priv->scroll_offset = strong.x + strong.width - text_width;
}
if (weak.x - priv->scroll_offset < 0 &&
strong.x + strong.width - weak.x <= text_width)
{
priv->scroll_offset = weak.x;
}
else if (weak.x + weak.width - priv->scroll_offset > text_width &&
weak.x + weak.width - strong.x <= text_width)
{
priv->scroll_offset = weak.x + weak.width - text_width;
}
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_SCROLL_OFFSET]);
gtk_text_update_handles (self);
}
static int
gtk_text_move_visually (GtkText *self,
int start,
int count)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int index;
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const char *text;
gboolean split_cursor;
gboolean strong;
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, start) - text;
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-split-cursor" , &split_cursor,
NULL);
if (split_cursor)
strong = TRUE ;
else
{
GdkDisplay *display;
GdkSeat *seat;
GdkDevice *keyboard = NULL;
PangoDirection direction = PANGO_DIRECTION_LTR;
display = gtk_widget_get_display (GTK_WIDGET (self));
seat = gdk_display_get_default_seat (display);
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
direction = gdk_device_get_direction (keyboard);
strong = direction == priv->resolved_dir;
}
while (count != 0 )
{
int new_index, new_trailing;
if (count > 0 )
{
pango_layout_move_cursor_visually (layout, strong, index, 0 , 1 , &new_index, &new_trailing);
count--;
}
else
{
pango_layout_move_cursor_visually (layout, strong, index, 0 , -1 , &new_index, &new_trailing);
count++;
}
if (new_index < 0 )
index = 0 ;
else if (new_index != G_MAXINT)
index = new_index;
while (new_trailing--)
index = g_utf8_next_char (text + index) - text;
}
return g_utf8_pointer_to_offset (text, text + index);
}
static int
gtk_text_move_logically (GtkText *self,
int start,
int count)
{
int new_pos = start;
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = CLAMP (start + count, 0 , length);
}
else
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
while (count > 0 && new_pos < length)
{
do
new_pos++;
while (new_pos < length && !log_attrs[new_pos].is_cursor_position);
count--;
}
while (count < 0 && new_pos > 0 )
{
do
new_pos--;
while (new_pos > 0 && !log_attrs[new_pos].is_cursor_position);
count++;
}
}
return new_pos;
}
static int
gtk_text_move_forward_word (GtkText *self,
int start,
gboolean allow_whitespace)
{
int new_pos = start;
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = length;
}
else if (new_pos < length)
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
/* Find the next word boundary */
new_pos++;
while (new_pos < n_attrs - 1 && !(log_attrs[new_pos].is_word_end ||
(log_attrs[new_pos].is_word_start && allow_whitespace)))
new_pos++;
}
return new_pos;
}
static int
gtk_text_move_backward_word (GtkText *self,
int start,
gboolean allow_whitespace)
{
int new_pos = start;
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = 0 ;
}
else if (start > 0 )
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
new_pos = start - 1 ;
/* Find the previous word boundary */
while (new_pos > 0 && !(log_attrs[new_pos].is_word_start ||
(log_attrs[new_pos].is_word_end && allow_whitespace)))
new_pos--;
}
return new_pos;
}
static void
gtk_text_delete_whitespace (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE );
const PangoLogAttr *log_attrs;
int n_attrs;
int start, end;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
start = end = priv->current_pos;
while (start > 0 && log_attrs[start-1 ].is_white)
start--;
while (end < n_attrs && log_attrs[end].is_white)
end++;
if (start != end)
gtk_editable_delete_text (GTK_EDITABLE (self), start, end);
}
static void
gtk_text_select_word (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = gtk_text_move_backward_word (self, priv->current_pos, TRUE );
int end_pos = gtk_text_move_forward_word (self, priv->current_pos, TRUE );
gtk_text_set_selection_bounds (self, start_pos, end_pos);
}
static void
gtk_text_select_line (GtkText *self)
{
gtk_text_set_selection_bounds (self, 0 , -1 );
}
static int
truncate_multiline (const char *text)
{
int length;
for (length = 0 ;
text[length] && text[length] != '\n' && text[length] != '\r' ;
length++);
return length;
}
static void
paste_received (GObject *clipboard,
GAsyncResult *result,
gpointer data)
{
GtkText *self = GTK_TEXT (data);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
char *text;
int pos, start, end;
int length = -1 ;
text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), result, NULL);
if (text == NULL)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return ;
}
if (priv->insert_pos >= 0 )
{
pos = priv->insert_pos;
start = priv->selection_bound;
end = priv->current_pos;
if (!((start <= pos && pos <= end) || (end <= pos && pos <= start)))
gtk_text_set_selection_bounds (self, pos, pos);
priv->insert_pos = -1 ;
}
if (priv->truncate_multiline)
length = truncate_multiline (text);
else
length = strlen (text);
begin_change (self);
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
pos = priv->current_pos;
gtk_editable_insert_text (GTK_EDITABLE (self), text, length, &pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
pos, pos + length);
gtk_text_set_selection_bounds (self, pos, pos);
end_change (self);
g_free (text);
g_object_unref (self);
}
static void
gtk_text_paste (GtkText *self,
GdkClipboard *clipboard)
{
gdk_clipboard_read_text_async (clipboard, NULL, paste_received, g_object_ref (self));
}
static void
gtk_text_update_primary_selection (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkClipboard *clipboard;
if (!gtk_widget_get_realized (GTK_WIDGET (self)))
return ;
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
return ;
clipboard = gtk_widget_get_primary_clipboard (GTK_WIDGET (self));
if (priv->selection_bound != priv->current_pos)
{
gdk_clipboard_set_content (clipboard, priv->selection_content);
}
else
{
if (gdk_clipboard_get_content (clipboard) == priv->selection_content)
gdk_clipboard_set_content (clipboard, NULL);
}
}
/* Public API
*/
/**
* gtk_text_new :
*
* Creates a new ` GtkText ` .
*
* Returns : the new ` GtkText `
*/
GtkWidget *
gtk_text_new (void )
{
return g_object_new (GTK_TYPE_TEXT, NULL);
}
/**
* gtk_text_new_with_buffer :
* @ buffer : the buffer to use
*
* Creates a new ` GtkText ` with the specified buffer .
*
* Returns : a new ` GtkText `
*/
GtkWidget *
gtk_text_new_with_buffer (GtkEntryBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_ENTRY_BUFFER (buffer), NULL);
return g_object_new (GTK_TYPE_TEXT, "buffer" , buffer, NULL);
}
static GtkEntryBuffer *
get_buffer (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->buffer == NULL)
{
GtkEntryBuffer *buffer;
buffer = gtk_entry_buffer_new (NULL, 0 );
gtk_text_set_buffer (self, buffer);
g_object_unref (buffer);
}
return priv->buffer;
}
/**
* gtk_text_get_buffer :
* @ self : a text widget
*
* Get the entry buffer object which holds the text for
* this widget .
*
* Returns : ( transfer none ) : the entry buffer object
*/
GtkEntryBuffer *
gtk_text_get_buffer (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return get_buffer (self);
}
/**
* gtk_text_set_buffer :
* @ self : a text widget
* @ buffer : an entry buffer object
*
* Set the entry buffer object which holds the text for
* this widget .
*/
void
gtk_text_set_buffer (GtkText *self,
GtkEntryBuffer *buffer)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GObject *obj;
gboolean had_buffer = FALSE ;
guint old_length = 0 ;
guint new_length = 0 ;
g_return_if_fail (GTK_IS_TEXT (self));
if (buffer)
{
g_return_if_fail (GTK_IS_ENTRY_BUFFER (buffer));
g_object_ref (buffer);
}
if (priv->buffer)
{
had_buffer = TRUE ;
old_length = gtk_entry_buffer_get_length (priv->buffer);
buffer_disconnect_signals (self);
g_object_unref (priv->buffer);
}
priv->buffer = buffer;
if (priv->buffer)
{
new_length = gtk_entry_buffer_get_length (priv->buffer);
buffer_connect_signals (self);
}
update_placeholder_visibility (self);
obj = G_OBJECT (self);
g_object_freeze_notify (obj);
g_object_notify_by_pspec (obj, text_props[PROP_BUFFER]);
g_object_notify_by_pspec (obj, text_props[PROP_MAX_LENGTH]);
if (old_length != 0 || new_length != 0 )
g_object_notify (obj, "text" );
if (had_buffer)
{
gtk_text_set_selection_bounds (self, 0 , 0 );
gtk_text_recompute (self);
}
g_object_thaw_notify (obj);
}
static void
gtk_text_set_editable (GtkText *self,
gboolean is_editable)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (is_editable != priv->editable)
{
GtkWidget *widget = GTK_WIDGET (self);
if (!is_editable)
{
gtk_text_reset_im_context (self);
if (gtk_widget_has_focus (widget))
gtk_im_context_focus_out (priv->im_context);
priv->preedit_length = 0 ;
priv->preedit_length_c = 0 ;
priv->preedit_cursor = 0 ;
gtk_widget_remove_css_class (GTK_WIDGET (self), "read-only" );
}
else
{
gtk_widget_add_css_class (GTK_WIDGET (self), "read-only" );
}
priv->editable = is_editable;
if (is_editable && gtk_widget_has_focus (widget))
gtk_im_context_focus_in (priv->im_context);
gtk_event_controller_key_set_im_context (GTK_EVENT_CONTROLLER_KEY (priv->key_controller),
is_editable ? priv->im_context : NULL);
gtk_text_update_history (self);
gtk_text_update_clipboard_actions (self);
gtk_text_update_emoji_action (self);
gtk_text_update_clear_action (self);
gtk_accessible_update_property (GTK_ACCESSIBLE (self),
GTK_ACCESSIBLE_PROPERTY_READ_ONLY, !priv->editable,
-1 );
g_object_notify (G_OBJECT (self), "editable" );
}
}
static void
gtk_text_set_text (GtkText *self,
const char *text)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int tmp_pos;
g_return_if_fail (GTK_IS_TEXT (self));
g_return_if_fail (text != NULL);
/* Actually setting the text will affect the cursor and selection;
* if the contents don ' t actually change , this will look odd to the user .
*/
if (strcmp (gtk_entry_buffer_get_text (get_buffer (self)), text) == 0 )
return ;
gtk_text_history_begin_irreversible_action (priv->history);
begin_change (self);
gtk_editable_delete_text (GTK_EDITABLE (self), 0 , -1 );
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_REMOVE,
0 , G_MAXUINT);
tmp_pos = 0 ;
gtk_editable_insert_text (GTK_EDITABLE (self), text, strlen (text), &tmp_pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
tmp_pos, tmp_pos + g_utf8_strlen (text, -1 ));
end_change (self);
gtk_text_history_end_irreversible_action (priv->history);
}
/**
* gtk_text_set_visibility :
* @ self : a text widget
* @ visible : true if the contents of the text widget are displayed
* as plain text
*
* Sets whether the contents of the text widget are visible or not .
*
* When visibility is set to false , characters are displayed
* as the invisible char , and it will also appear that way when
* the text in the widget is copied to the clipboard .
*
* By default , GTK picks the best invisible character available
* in the current font , but it can be changed with
* [ method @ Gtk . Text . set_invisible_char ] .
*
* Note that you probably want to set [ property @ Gtk . Text : input - purpose ]
* to [ enum @ Gtk . InputPurpose . password ] or [ enum @ Gtk . InputPurpose . pin ]
* to inform input methods about the purpose of this widget , in addition
* to setting visibility to false .
*/
void
gtk_text_set_visibility (GtkText *self,
gboolean visible)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
visible = visible != FALSE ;
if (priv->visible != visible)
{
priv->visible = visible;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_VISIBILITY]);
gtk_text_update_cached_style_values (self);
gtk_text_recompute (self);
/* disable undo when invisible text is used */
gtk_text_update_history (self);
gtk_text_update_clipboard_actions (self);
}
}
/**
* gtk_text_get_visibility :
* @ self : a text widget
*
* Retrieves whether the text is visible .
*
* Returns : true if the text is visible
*/
gboolean
gtk_text_get_visibility (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->visible;
}
/**
* gtk_text_set_invisible_char :
* @ self : a text widget
* @ ch : a Unicode character
*
* Sets the character to use when in “ password mode ” .
*
* By default , GTK picks the best invisible char available in the
* current font . If you set the invisible char to 0 , then the user
* will get no feedback at all ; there will be no text on the screen
* as they type .
*/
void
gtk_text_set_invisible_char (GtkText *self,
gunichar ch)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (!priv->invisible_char_set)
{
priv->invisible_char_set = TRUE ;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR_SET]);
}
if (ch == priv->invisible_char)
return ;
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
gtk_text_recompute (self);
}
/**
* gtk_text_get_invisible_char :
* @ self : a text widget
*
* Retrieves the character displayed when visibility is set to false .
*
* Note that GTK does not compute this value unless it needs it ,
* so the value returned by this function is not very useful unless
* it has been explicitly set with [ method @ Gtk . Text . set_invisible_char ] .
*
* Returns : the current invisible char , or 0 , if @ text does not
* show invisible text at all
*/
gunichar
gtk_text_get_invisible_char (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), 0 );
return priv->invisible_char;
}
/**
* gtk_text_unset_invisible_char :
* @ self : a text widget
*
* Unsets the invisible char .
*
* After calling this , the default invisible char is used again .
*/
void
gtk_text_unset_invisible_char (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar ch;
g_return_if_fail (GTK_IS_TEXT (self));
if (!priv->invisible_char_set)
return ;
priv->invisible_char_set = FALSE ;
ch = find_invisible_char (GTK_WIDGET (self));
if (priv->invisible_char != ch)
{
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
}
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR_SET]);
gtk_text_recompute (self);
}
/**
* gtk_text_set_overwrite_mode :
* @ self : a text widget
* @ overwrite : new value
*
* Sets whether the text is overwritten when typing .
*/
void
gtk_text_set_overwrite_mode (GtkText *self,
gboolean overwrite)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->overwrite_mode == overwrite)
return ;
gtk_text_toggle_overwrite (self);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_OVERWRITE_MODE]);
}
/**
* gtk_text_get_overwrite_mode :
* @ self : a text widget
*
* Gets whether text is overwritten when typing .
*
* See [ method @ Gtk . Text . set_overwrite_mode ] .
*
* Returns : whether text is overwritten when typing
*/
gboolean
gtk_text_get_overwrite_mode (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->overwrite_mode;
}
/**
* gtk_text_set_max_length :
* @ self : a text widget
* @ length : the maximum length of the text , or 0 for no maximum .
* ( other than the maximum length of entries . ) The value passed
* in will be clamped to the range 0 - 65536
*
* Sets the maximum allowed length of the contents .
*
* If the current contents are longer than the given length ,
* they will be truncated to fit .
*
* This is equivalent to getting @ self ' s ` GtkEntryBuffer ` and
* calling [ method @ Gtk . EntryBuffer . set_max_length ] on it .
*/
void
gtk_text_set_max_length (GtkText *self,
int length)
{
g_return_if_fail (GTK_IS_TEXT (self));
gtk_entry_buffer_set_max_length (get_buffer (self), length);
}
/**
* gtk_text_get_max_length :
* @ self : a text widget
*
* Retrieves the maximum allowed length of the contents .
*
* See [ method @ Gtk . Text . set_max_length ] .
*
* This is equivalent to getting @ self ' s ` GtkEntryBuffer ` and
* calling [ method @ Gtk . EntryBuffer . get_max_length ] on it .
*
* Returns : the maximum allowed number of characters , or 0 if
* there is no limit
*/
int
gtk_text_get_max_length (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), 0 );
return gtk_entry_buffer_get_max_length (get_buffer (self));
}
/**
* gtk_text_get_text_length :
* @ self : a text widget
*
* Retrieves the length of the contents .
*
* This is equivalent to getting @ self ' s ` GtkEntryBuffer `
* and calling [ method @ Gtk . EntryBuffer . get_length ] on it .
*
* Returns : the length of the contents , in characters
*/
guint16
gtk_text_get_text_length (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), 0 );
return gtk_entry_buffer_get_length (get_buffer (self));
}
/*< private >
* gtk_text_get_complete_text_length :
*
* Retrieves the complete length of the contents .
*
* Unlike [ func @ Gtk . Text . get_text_length ] , this method also
* includes the length of * pseudo - content * , such as the
* preedit buffer .
*
* Returns : the length of the content & * pseudo - content *
*/
guint16
gtk_text_get_complete_text_length (GtkText *self)
{
GtkTextPrivate *priv;
g_return_val_if_fail (GTK_IS_TEXT (self), 0 );
priv = gtk_text_get_instance_private (self);
return gtk_entry_buffer_get_length (get_buffer (self)) + priv->preedit_length_c;
}
/**
* gtk_text_set_activates_default :
* @ self : a text widget
* @ activates : true to activate window ’ s default widget on
* < kbd > Enter < / kbd > keypress
*
* Sets whether pressing < kbd > Enter < / kbd > will activate
* the default widget .
*
* This usually means that the dialog containing @ self will
* be closed , since the default widget is usually one of
* the dialog buttons .
*/
void
gtk_text_set_activates_default (GtkText *self,
gboolean activates)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
activates = activates != FALSE ;
if (priv->activates_default != activates)
{
priv->activates_default = activates;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ACTIVATES_DEFAULT]);
}
}
/**
* gtk_text_get_activates_default :
* @ self : a text widget
*
* Returns whether pressing < kbd > Enter < / kbd > will activate
* the default widget for the window containing the widget .
*
* See [ method @ Gtk . Text . set_activates_default ] .
*
* Returns : true if @ self will activate the default widget
*/
gboolean
gtk_text_get_activates_default (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->activates_default;
}
static void
gtk_text_set_width_chars (GtkText *self,
int n_chars)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->width_chars != n_chars)
{
priv->width_chars = n_chars;
g_object_notify (G_OBJECT (self), "width-chars" );
gtk_widget_queue_resize (GTK_WIDGET (self));
}
}
static void
gtk_text_set_max_width_chars (GtkText *self,
int n_chars)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->max_width_chars != n_chars)
{
priv->max_width_chars = n_chars;
g_object_notify (G_OBJECT (self), "max-width-chars" );
gtk_widget_queue_resize (GTK_WIDGET (self));
}
}
PangoLayout *
gtk_text_get_layout (GtkText *self)
{
PangoLayout *layout;
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
layout = gtk_text_ensure_layout (self, TRUE );
return layout;
}
void
gtk_text_get_layout_offsets (GtkText *self,
int *x,
int *y)
{
g_return_if_fail (GTK_IS_TEXT (self));
get_layout_position (self, x, y);
}
static void
gtk_text_set_alignment (GtkText *self,
float xalign)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (xalign < 0 .0 )
xalign = 0 .0 ;
else if (xalign > 1 .0 )
xalign = 1 .0 ;
if (xalign != priv->xalign)
{
priv->xalign = xalign;
gtk_text_recompute (self);
if (priv->placeholder)
gtk_label_set_xalign (GTK_LABEL (priv->placeholder), xalign);
g_object_notify (G_OBJECT (self), "xalign" );
}
}
static void
hide_selection_bubble (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble && gtk_widget_get_visible (priv->selection_bubble))
gtk_widget_set_visible (priv->selection_bubble, FALSE );
}
static void
gtk_text_activate_clipboard_cut (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "cut-clipboard" );
hide_selection_bubble (self);
}
static void
gtk_text_activate_clipboard_copy (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "copy-clipboard" );
hide_selection_bubble (self);
}
static void
gtk_text_activate_clipboard_paste (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "paste-clipboard" );
hide_selection_bubble (self);
}
static void
gtk_text_activate_selection_delete (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_delete_cb (self);
hide_selection_bubble (self);
}
static void
gtk_text_activate_selection_select_all (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_select_line (self);
}
static void
gtk_text_clear (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
gtk_editable_delete_text (GTK_EDITABLE (widget), 0 , -1 );
}
static void
gtk_text_activate_misc_insert_emoji (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_insert_emoji (self);
hide_selection_bubble (self);
}
static void
gtk_text_activate_misc_toggle_direction (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
gtk_widget_set_direction (widget, GTK_TEXT_DIR_LTR);
else
gtk_widget_set_direction (widget, GTK_TEXT_DIR_RTL);
update_resolved_dir (self);
if (priv->cached_layout)
pango_layout_context_changed (priv->cached_layout);
}
static void
gtk_text_update_clipboard_actions (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
DisplayMode mode;
GdkClipboard *clipboard;
gboolean has_clipboard;
gboolean has_selection;
gboolean has_content;
gboolean visible;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (self));
mode = gtk_text_get_display_mode (self);
has_clipboard = gdk_content_formats_contain_gtype (gdk_clipboard_get_formats (clipboard), G_TYPE_STRING);
has_selection = priv->current_pos != priv->selection_bound;
has_content = priv->buffer && (gtk_entry_buffer_get_length (priv->buffer) > 0 );
visible = mode == DISPLAY_NORMAL;
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.cut" ,
visible && priv->editable && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.copy" ,
visible && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.paste" ,
priv->editable && has_clipboard);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "selection.delete" ,
priv->editable && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "selection.select-all" ,
has_content);
}
static void
gtk_text_update_emoji_action (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "misc.insert-emoji" ,
priv->editable &&
(gtk_text_get_input_hints (self) & GTK_INPUT_HINT_NO_EMOJI) == 0 );
}
static void
gtk_text_update_clear_action (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "text.clear" , priv->editable);
}
static GMenuModel *
gtk_text_get_menu_model (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkJoinedMenu *joined;
GMenu *menu, *section;
GMenuItem *item;
joined = gtk_joined_menu_new ();
menu = g_menu_new ();
section = g_menu_new ();
item = g_menu_item_new (_("Cu_t" ), "clipboard.cut" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "edit-cut-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Copy" ), "clipboard.copy" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "edit-copy-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Paste" ), "clipboard.paste" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "edit-paste-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Delete" ), "selection.delete" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "edit-delete-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
section = g_menu_new ();
item = g_menu_item_new (_("Select _All" ), "selection.select-all" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "edit-select-all-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("Change di_rection" ), "misc.toggle-direction" );
g_menu_item_set_attribute (item, "hidden-when" , "s" , "action-disabled" );
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new ( _("Insert _Emoji" ), "misc.insert-emoji" );
g_menu_item_set_attribute (item, "hidden-when" , "s" , "action-disabled" );
g_menu_item_set_attribute (item, "touch-icon" , "s" , "face-smile-symbolic" );
g_menu_append_item (section, item);
g_object_unref (item);
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
gtk_joined_menu_append_menu (joined, G_MENU_MODEL (menu));
g_object_unref (menu);
if (priv->extra_menu)
gtk_joined_menu_append_menu (joined, priv->extra_menu);
return G_MENU_MODEL (joined);
}
static gboolean
gtk_text_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
gtk_widget_grab_focus (widget);
return GDK_EVENT_STOP;
}
static void
gtk_text_popup_menu (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
gtk_text_do_popup (GTK_TEXT (widget), -1 , -1 );
}
static void
show_or_hide_handles (GtkWidget *popover,
GParamSpec *pspec,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean visible;
visible = gtk_widget_get_visible (popover);
priv->text_handles_enabled = !visible;
gtk_text_update_handles (self);
}
static void
append_bubble_item (GtkText *self,
GtkWidget *toolbar,
GMenuModel *model,
int index)
{
GtkActionMuxer *muxer;
GtkWidget *item, *image;
GVariant *att;
const char *icon_name;
const char *action_name;
GMenuModel *link;
gboolean enabled;
link = g_menu_model_get_item_link (model, index, "section" );
if (link)
{
int i;
for (i = 0 ; i < g_menu_model_get_n_items (link); i++)
append_bubble_item (self, toolbar, link, i);
g_object_unref (link);
return ;
}
att = g_menu_model_get_item_attribute_value (model, index, "touch-icon" , G_VARIANT_TYPE_STRING);
if (att == NULL)
return ;
icon_name = g_variant_get_string (att, NULL);
g_variant_unref (att);
att = g_menu_model_get_item_attribute_value (model, index, "action" , G_VARIANT_TYPE_STRING);
if (att == NULL)
return ;
action_name = g_variant_get_string (att, NULL);
g_variant_unref (att);
muxer = _gtk_widget_get_action_muxer (GTK_WIDGET (self), FALSE );
if (!gtk_action_muxer_query_action (muxer, action_name, &enabled,
NULL, NULL, NULL, NULL) ||
!enabled)
return ;
item = gtk_button_new ();
gtk_widget_set_focus_on_click (item, FALSE );
image = gtk_image_new_from_icon_name (icon_name);
gtk_button_set_child (GTK_BUTTON (item), image);
gtk_widget_add_css_class (item, "image-button" );
gtk_actionable_set_action_name (GTK_ACTIONABLE (item), action_name);
gtk_box_append (GTK_BOX (toolbar), item);
}
static gboolean
gtk_text_selection_bubble_popup_show (gpointer user_data)
{
GtkText *self = user_data;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
cairo_rectangle_int_t rect;
graphene_point_t p;
gboolean has_selection;
int start_x, end_x;
GtkWidget *box;
GtkWidget *toolbar;
GMenuModel *model;
int i;
gtk_text_update_clipboard_actions (self);
has_selection = priv->selection_bound != priv->current_pos;
if (!has_selection && !priv->editable)
{
priv->selection_bubble_timeout_id = 0 ;
return G_SOURCE_REMOVE;
}
g_clear_pointer (&priv->selection_bubble, gtk_widget_unparent);
priv->selection_bubble = gtk_popover_new ();
gtk_widget_set_parent (priv->selection_bubble, GTK_WIDGET (self));
gtk_widget_add_css_class (priv->selection_bubble, "touch-selection" );
gtk_popover_set_position (GTK_POPOVER (priv->selection_bubble), GTK_POS_BOTTOM);
gtk_popover_set_autohide (GTK_POPOVER (priv->selection_bubble), FALSE );
g_signal_connect (priv->selection_bubble, "notify::visible" ,
G_CALLBACK (show_or_hide_handles), self);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5 );
gtk_widget_set_margin_start (box, 10 );
gtk_widget_set_margin_end (box, 10 );
gtk_widget_set_margin_top (box, 10 );
gtk_widget_set_margin_bottom (box, 10 );
toolbar = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0 );
gtk_widget_add_css_class (toolbar, "linked" );
gtk_popover_set_child (GTK_POPOVER (priv->selection_bubble), box);
gtk_box_append (GTK_BOX (box), toolbar);
model = gtk_text_get_menu_model (self);
for (i = 0 ; i < g_menu_model_get_n_items (model); i++)
append_bubble_item (self, toolbar, model, i);
g_object_unref (model);
if (!gtk_widget_compute_point (GTK_WIDGET (self), gtk_widget_get_parent (GTK_WIDGET (self)),
&GRAPHENE_POINT_INIT (0 , 0 ), &p))
graphene_point_init (&p, 0 , 0 );
gtk_text_get_cursor_locations (self, &start_x, NULL);
start_x -= priv->scroll_offset;
start_x = CLAMP (start_x, 0 , text_width);
rect.y = - p.y;
rect.height = text_height;
if (has_selection)
{
end_x = gtk_text_get_selection_bound_location (self) - priv->scroll_offset;
end_x = CLAMP (end_x, 0 , text_width);
rect.x = - p.x + MIN (start_x, end_x);
rect.width = ABS (end_x - start_x);
}
else
{
rect.x = - p.x + start_x;
rect.width = 0 ;
}
rect.x -= 5 ;
rect.y -= 5 ;
rect.width += 10 ;
rect.height += 10 ;
gtk_popover_set_pointing_to (GTK_POPOVER (priv->selection_bubble), &rect);
gtk_popover_popup (GTK_POPOVER (priv->selection_bubble));
priv->selection_bubble_timeout_id = 0 ;
return G_SOURCE_REMOVE;
}
static void
gtk_text_selection_bubble_popup_unset (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble)
gtk_widget_set_visible (priv->selection_bubble, FALSE );
g_clear_handle_id (&priv->selection_bubble_timeout_id, g_source_remove);
}
static void
gtk_text_selection_bubble_popup_set (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble_timeout_id)
g_source_remove (priv->selection_bubble_timeout_id);
priv->selection_bubble_timeout_id =
g_timeout_add (50 , gtk_text_selection_bubble_popup_show, self);
gdk_source_set_static_name_by_id (priv->selection_bubble_timeout_id, "[gtk] gtk_text_selection_bubble_popup_cb" );
}
static void
gtk_text_drag_leave (GtkDropTarget *dest,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
priv->dnd_position = -1 ;
gtk_widget_queue_draw (widget);
}
static gboolean
gtk_text_drag_drop (GtkDropTarget *dest,
const GValue *value,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int drop_position;
int length;
const char *str;
if (!priv->editable)
return FALSE ;
drop_position = gtk_text_find_position (self, x + priv->scroll_offset);
str = g_value_get_string (value);
if (str == NULL)
str = "" ;
if (priv->truncate_multiline)
length = truncate_multiline (str);
else
length = -1 ;
if (priv->selection_bound == priv->current_pos ||
drop_position < priv->selection_bound ||
drop_position > priv->current_pos)
{
gtk_editable_insert_text (GTK_EDITABLE (self), str, length, &drop_position);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
drop_position, drop_position + g_utf8_strlen (str, length));
}
else
{
int pos;
/* Replacing selection */
begin_change (self);
gtk_text_delete_selection (self);
pos = MIN (priv->selection_bound, priv->current_pos);
gtk_editable_insert_text (GTK_EDITABLE (self), str, length, &pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
pos, pos + g_utf8_strlen (str, length));
end_change (self);
}
return TRUE ;
}
static gboolean
gtk_text_drag_accept (GtkDropTarget *dest,
GdkDrop *drop,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->editable)
return FALSE ;
if ((gdk_drop_get_actions (drop) & gtk_drop_target_get_actions (dest)) == GDK_ACTION_NONE)
return FALSE ;
return gdk_content_formats_match (gtk_drop_target_get_formats (dest), gdk_drop_get_formats (drop));
}
static GdkDragAction
gtk_text_drag_motion (GtkDropTarget *target,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int new_position, old_position;
if (!priv->editable)
{
gtk_drop_target_reject (target);
return 0 ;
}
old_position = priv->dnd_position;
new_position = gtk_text_find_position (self, x + priv->scroll_offset);
if (priv->selection_bound == priv->current_pos ||
new_position < priv->selection_bound ||
new_position > priv->current_pos)
{
priv->dnd_position = new_position;
}
else
{
priv->dnd_position = -1 ;
}
if (priv->dnd_position != old_position)
gtk_widget_queue_draw (GTK_WIDGET (self));
if (priv->drag)
return GDK_ACTION_MOVE;
else
return GDK_ACTION_COPY;
}
/* We display the cursor when
*
* - the selection is empty , AND
* - the widget has focus
*/
#define CURSOR_ON_MULTIPLIER 2
#define CURSOR_OFF_MULTIPLIER 1
#define CURSOR_PEND_MULTIPLIER 3
#define CURSOR_DIVIDER 3
static gboolean
cursor_blinks (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkRoot *root = gtk_widget_get_root (GTK_WIDGET (self));
if (gtk_widget_get_mapped (GTK_WIDGET (self)) &&
gtk_window_is_active (GTK_WINDOW (root)) &&
gtk_event_controller_focus_is_focus (GTK_EVENT_CONTROLLER_FOCUS (priv->focus_controller)) &&
priv->editable &&
priv->selection_bound == priv->current_pos)
{
GtkSettings *settings;
gboolean blink;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-cursor-blink" , &blink, NULL);
return blink;
}
else
return FALSE ;
}
static gboolean
get_middle_click_paste (GtkText *self)
{
GtkSettings *settings;
gboolean paste;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-enable-primary-paste" , &paste, NULL);
return paste;
}
static int
get_cursor_time (GtkText *self)
{
GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (self));
int time;
g_object_get (settings, "gtk-cursor-blink-time" , &time, NULL);
return time;
}
static int
get_cursor_blink_timeout (GtkText *self)
{
GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (self));
int timeout;
g_object_get (settings, "gtk-cursor-blink-timeout" , &timeout, NULL);
return timeout;
}
typedef struct {
guint64 start;
guint64 end;
} BlinkData;
static gboolean blink_cb (GtkWidget *widget,
GdkFrameClock *clock,
gpointer user_data);
static void
add_blink_timeout (GtkText *self,
gboolean delay)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
BlinkData *data;
int blink_time;
priv->blink_start_time = g_get_monotonic_time ();
priv->cursor_alpha = 1 .0 ;
blink_time = get_cursor_time (self);
data = g_new (BlinkData, 1 );
data->start = priv->blink_start_time;
if (delay)
data->start += blink_time * 1000 / 2 ;
data->end = data->start + blink_time * 1000 ;
priv->blink_tick = gtk_widget_add_tick_callback (GTK_WIDGET (self),
blink_cb,
data,
g_free);
}
static void
remove_blink_timeout (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->blink_tick)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (self), priv->blink_tick);
priv->blink_tick = 0 ;
}
}
/*
* Blink !
*/
static float
blink_alpha (float phase)
{
/* keep it simple, and split the blink cycle evenly
* into visible , fading out , invisible , fading in
*/
if (phase < 0 .25 )
return 1 ;
else if (phase < 0 .5 )
return 1 - 4 * (phase - 0 .25 );
else if (phase < 0 .75 )
return 0 ;
else
return 4 * (phase - 0 .75 );
}
static gboolean
blink_cb (GtkWidget *widget,
GdkFrameClock *clock,
gpointer user_data)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
BlinkData *data = user_data;
int blink_timeout;
int blink_time;
guint64 now;
float phase;
float alpha;
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
{
g_warning ("GtkText - did not receive a focus-out event.\n"
"If you handle this event, you must return\n"
"GDK_EVENT_PROPAGATE so the default handler\n"
"gets the event as well" );
gtk_text_check_cursor_blink (self);
return G_SOURCE_REMOVE;
}
if (priv->selection_bound != priv->current_pos)
{
g_warning ("GtkText - unexpected blinking selection. Removing" );
gtk_text_check_cursor_blink (self);
return G_SOURCE_REMOVE;
}
blink_timeout = get_cursor_blink_timeout (self);
blink_time = get_cursor_time (self);
now = g_get_monotonic_time ();
if (now > priv->blink_start_time + blink_timeout * 1000000 )
{
/* we've blinked enough without the user doing anything, stop blinking */
priv->cursor_alpha = 1 .0 ;
remove_blink_timeout (self);
gtk_widget_queue_draw (widget);
return G_SOURCE_REMOVE;
}
phase = (now - data->start) / (float ) (data->end - data->start);
if (now >= data->end)
{
data->start = data->end;
data->end = data->start + blink_time * 1000 ;
}
alpha = blink_alpha (phase);
if (priv->cursor_alpha != alpha)
{
priv->cursor_alpha = alpha;
gtk_widget_queue_draw (widget);
}
return G_SOURCE_CONTINUE;
}
static void
gtk_text_check_cursor_blink (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (cursor_blinks (self))
{
if (!priv->blink_tick)
add_blink_timeout (self, FALSE );
}
else
{
if (priv->blink_tick)
remove_blink_timeout (self);
}
}
static void
gtk_text_pend_cursor_blink (GtkText *self)
{
if (cursor_blinks (self))
{
remove_blink_timeout (self);
add_blink_timeout (self, TRUE );
}
}
static void
gtk_text_reset_blink_time (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->blink_start_time = g_get_monotonic_time ();
}
/**
* gtk_text_set_placeholder_text :
* @ self : a text widget
* @ text : ( nullable ) : a string to be displayed when @ self
* is empty and unfocused
*
* Sets the text to be displayed when the text widget is
* empty and unfocused .
*
* This can be used to give a visual hint of the expected
* contents of the text widget .
*/
void
gtk_text_set_placeholder_text (GtkText *self,
const char *text)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->placeholder == NULL)
{
priv->placeholder = g_object_new (GTK_TYPE_LABEL,
"label" , text,
"css-name" , "placeholder" ,
"xalign" , priv->xalign,
"ellipsize" , PANGO_ELLIPSIZE_END,
"max-width-chars" , 3 ,
NULL);
gtk_label_set_attributes (GTK_LABEL (priv->placeholder), priv->attrs);
gtk_widget_insert_after (priv->placeholder, GTK_WIDGET (self), NULL);
}
else
{
gtk_label_set_text (GTK_LABEL (priv->placeholder), text);
}
update_placeholder_visibility (self);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_PLACEHOLDER_TEXT]);
}
/**
* gtk_text_get_placeholder_text :
* @ self : a text widget
*
* Retrieves the text that will be displayed when the text widget
* is empty and unfocused
*
* See [ method @ Gtk . Text . set_placeholder_text ] .
*
* Returns : ( nullable ) ( transfer none ) : the placeholder text
*/
const char *
gtk_text_get_placeholder_text (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
if (!priv->placeholder)
return NULL;
return gtk_label_get_text (GTK_LABEL (priv->placeholder));
}
/**
* gtk_text_set_input_purpose :
* @ self : a text widget
* @ purpose : the input purpose
*
* Sets the input purpose of the text widget .
*
* The input purpose can be used by on - screen keyboards
* and other input methods to adjust their behaviour .
*/
void
gtk_text_set_input_purpose (GtkText *self,
GtkInputPurpose purpose)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (gtk_text_get_input_purpose (self) != purpose)
{
g_object_set (G_OBJECT (priv->im_context),
"input-purpose" , purpose,
NULL);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INPUT_PURPOSE]);
}
}
/**
* gtk_text_get_input_purpose :
* @ self : a text widget
*
* Gets the input purpose of the text widget .
*
* Returns : the input purpose
*/
GtkInputPurpose
gtk_text_get_input_purpose (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkInputPurpose purpose;
g_return_val_if_fail (GTK_IS_TEXT (self), GTK_INPUT_PURPOSE_FREE_FORM);
g_object_get (G_OBJECT (priv->im_context),
"input-purpose" , &purpose,
NULL);
return purpose;
}
/**
* gtk_text_set_input_hints :
* @ self : a text widget
* @ hints : input hints
*
* Sets hints that allow input methods to fine - tune their behaviour .
*/
void
gtk_text_set_input_hints (GtkText *self,
GtkInputHints hints)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (gtk_text_get_input_hints (self) != hints)
{
g_object_set (G_OBJECT (priv->im_context),
"input-hints" , hints,
NULL);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INPUT_HINTS]);
gtk_text_update_emoji_action (self);
}
}
/**
* gtk_text_get_input_hints :
* @ self : a text widget
*
* Gets the input hints of the text widget .
*
* Returns : the input hints
*/
GtkInputHints
gtk_text_get_input_hints (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkInputHints hints;
g_return_val_if_fail (GTK_IS_TEXT (self), GTK_INPUT_HINT_NONE);
g_object_get (G_OBJECT (priv->im_context),
"input-hints" , &hints,
NULL);
return hints;
}
/**
* gtk_text_set_attributes :
* @ self : a text widget
* @ attrs : ( nullable ) : a list of style attributes
*
* Apply attributes to the contents of the text widget .
*/
void
gtk_text_set_attributes (GtkText *self,
PangoAttrList *attrs)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (attrs)
pango_attr_list_ref (attrs);
if (priv->attrs)
pango_attr_list_unref (priv->attrs);
priv->attrs = attrs;
if (priv->placeholder)
gtk_label_set_attributes (GTK_LABEL (priv->placeholder), attrs);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ATTRIBUTES]);
gtk_text_recompute (self);
gtk_widget_queue_resize (GTK_WIDGET (self));
}
/**
* gtk_text_get_attributes :
* @ self : a text widget
*
* Gets the attribute list that was set on the text widget .
*
* See [ method @ Gtk . Text . set_attributes ] .
*
* Returns : ( transfer none ) ( nullable ) : the attribute list
*/
PangoAttrList *
gtk_text_get_attributes (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->attrs;
}
/**
* gtk_text_set_tabs :
* @ self : a text widget
* @ tabs : ( nullable ) : tab stops
*
* Sets tab stops for the text widget .
*/
void
gtk_text_set_tabs (GtkText *self,
PangoTabArray *tabs)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->tabs)
pango_tab_array_free(priv->tabs);
if (tabs)
priv->tabs = pango_tab_array_copy (tabs);
else
priv->tabs = NULL;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_TABS]);
gtk_text_recompute (self);
gtk_widget_queue_resize (GTK_WIDGET (self));
}
/**
* gtk_text_get_tabs :
* @ self : a text widget
*
* Gets the tab stops for the text widget .
*
* See [ method @ Gtk . Text . set_tabs ] .
*
* Returns : ( nullable ) ( transfer none ) : the tab stops
*/
PangoTabArray *
gtk_text_get_tabs (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->tabs;
}
static void
emoji_picked (GtkEmojiChooser *chooser,
const char *text,
GtkText *self)
{
int pos;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
begin_change (self);
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
pos = priv->current_pos;
gtk_editable_insert_text (GTK_EDITABLE (self), text, -1 , &pos);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (self),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
pos, pos + g_utf8_strlen (text, -1 ));
gtk_text_set_selection_bounds (self, pos, pos);
end_change (self);
}
static void
gtk_text_insert_emoji (GtkText *self)
{
GtkWidget *chooser;
if (gtk_widget_get_ancestor (GTK_WIDGET (self), GTK_TYPE_EMOJI_CHOOSER) != NULL)
return ;
chooser = GTK_WIDGET (g_object_get_data (G_OBJECT (self), "gtk-emoji-chooser" ));
if (!chooser)
{
chooser = gtk_emoji_chooser_new ();
g_object_set_data (G_OBJECT (self), "gtk-emoji-chooser" , chooser);
gtk_widget_set_parent (chooser, GTK_WIDGET (self));
g_signal_connect (chooser, "emoji-picked" , G_CALLBACK (emoji_picked), self);
}
gtk_popover_popup (GTK_POPOVER (chooser));
}
static void
set_text_cursor (GtkWidget *widget)
{
gtk_widget_set_cursor_from_name (widget, "text" );
}
GtkEventController *
gtk_text_get_key_controller (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
return priv->key_controller;
}
/**
* gtk_text_set_extra_menu :
* @ self : a text widget
* @ model : ( nullable ) : a menu model
*
* Sets a menu model to add to the context menu of the text widget .
*/
void
gtk_text_set_extra_menu (GtkText *self,
GMenuModel *model)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (g_set_object (&priv->extra_menu, model))
{
g_clear_pointer (&priv->popup_menu, gtk_widget_unparent);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_EXTRA_MENU]);
}
}
/**
* gtk_text_get_extra_menu :
* @ self : a text widget
*
* Gets the extra menu model of the text widget .
*
* See [ method @ Gtk . Text . set_extra_menu ] .
*
* Returns : ( transfer none ) ( nullable ) : the menu model
*/
GMenuModel *
gtk_text_get_extra_menu (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->extra_menu;
}
/**
* gtk_text_set_enable_emoji_completion :
* @ self : a text widget
* @ enable_emoji_completion : true to enable Emoji completion
*
* Sets whether Emoji completion is enabled .
*
* If it is , typing ' : ' , followed by a recognized keyword ,
* will pop up a window with suggested Emojis matching the
* keyword .
*/
void
gtk_text_set_enable_emoji_completion (GtkText *self,
gboolean enable_emoji_completion)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->enable_emoji_completion == enable_emoji_completion)
return ;
priv->enable_emoji_completion = enable_emoji_completion;
if (priv->enable_emoji_completion)
priv->emoji_completion = gtk_emoji_completion_new (self);
else
g_clear_pointer (&priv->emoji_completion, gtk_widget_unparent);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ENABLE_EMOJI_COMPLETION]);
}
/**
* gtk_text_get_enable_emoji_completion :
* @ self : a text widget
*
* Returns whether Emoji completion is enabled .
*
* Returns : true if Emoji completion is enabled
*/
gboolean
gtk_text_get_enable_emoji_completion (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->enable_emoji_completion;
}
/**
* gtk_text_set_propagate_text_width :
* @ self : a text widget
* @ propagate_text_width : true to propagate the text width
*
* Sets whether the text widget should grow and shrink with the content .
*/
void
gtk_text_set_propagate_text_width (GtkText *self,
gboolean propagate_text_width)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->propagate_text_width == propagate_text_width)
return ;
priv->propagate_text_width = propagate_text_width;
gtk_widget_queue_resize (GTK_WIDGET (self));
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_PROPAGATE_TEXT_WIDTH]);
}
/**
* gtk_text_get_propagate_text_width :
* @ self : a text widget
*
* Returns whether the text widget will grow and shrink
* with the content .
*
* Returns : true if @ self will propagate the text width
*/
gboolean
gtk_text_get_propagate_text_width (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->propagate_text_width;
}
/**
* gtk_text_set_truncate_multiline :
* @ self : a text widget
* @ truncate_multiline : true to truncate multi - line text
*
* Sets whether pasted text should be truncated to the first line .
*/
void
gtk_text_set_truncate_multiline (GtkText *self,
gboolean truncate_multiline)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->truncate_multiline == truncate_multiline)
return ;
priv->truncate_multiline = truncate_multiline;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_TRUNCATE_MULTILINE]);
}
/**
* gtk_text_get_truncate_multiline :
* @ self : a text widget
*
* Returns whether pasted text will be truncated to the first line .
*
* Returns : true if @ self will truncate pasted multi - line text
*/
gboolean
gtk_text_get_truncate_multiline (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE );
return priv->truncate_multiline;
}
/**
* gtk_text_compute_cursor_extents :
* @ self : a text widget
* @ position : the character position
* @ strong : ( out ) ( optional ) : location to store the strong cursor position
* @ weak : ( out ) ( optional ) : location to store the weak cursor position
*
* Determines the positions of the strong and weak cursors for a
* given character position .
*
* The position of each cursor is stored as a zero - width rectangle .
* The strong cursor location is the location where characters of
* the directionality equal to the base direction are inserted .
* The weak cursor location is the location where characters of
* the directionality opposite to the base direction are inserted .
*
* The rectangle positions are in widget coordinates .
*
* Since : 4 . 4
*/
void
gtk_text_compute_cursor_extents (GtkText *self,
gsize position,
graphene_rect_t *strong,
graphene_rect_t *weak)
{
PangoLayout *layout;
PangoRectangle pango_strong_pos;
PangoRectangle pango_weak_pos;
int offset_x, offset_y, index;
const char *text;
g_return_if_fail (GTK_IS_TEXT (self));
layout = gtk_text_ensure_layout (self, TRUE );
text = pango_layout_get_text (layout);
position = CLAMP (position, 0 , g_utf8_strlen (text, -1 ));
index = g_utf8_offset_to_pointer (text, position) - text;
pango_layout_get_cursor_pos (layout, index,
strong ? &pango_strong_pos : NULL,
weak ? &pango_weak_pos : NULL);
gtk_text_get_layout_offsets (self, &offset_x, &offset_y);
if (strong)
{
graphene_rect_init (strong,
offset_x + pango_strong_pos.x / PANGO_SCALE,
offset_y + pango_strong_pos.y / PANGO_SCALE,
0 ,
pango_strong_pos.height / PANGO_SCALE);
}
if (weak)
{
graphene_rect_init (weak,
offset_x + pango_weak_pos.x / PANGO_SCALE,
offset_y + pango_weak_pos.y / PANGO_SCALE,
0 ,
pango_weak_pos.height / PANGO_SCALE);
}
}
static void
gtk_text_real_undo (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
GtkText *text = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (text);
gtk_text_history_undo (priv->history);
}
static void
gtk_text_real_redo (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
GtkText *text = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (text);
gtk_text_history_redo (priv->history);
}
static void
gtk_text_history_change_state_cb (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo)
{
/* Do nothing */
}
static void
gtk_text_history_insert_cb (gpointer funcs_data,
guint begin,
guint end,
const char *str,
guint len)
{
GtkText *text = funcs_data;
int location = begin;
gtk_editable_insert_text (GTK_EDITABLE (text), str, len, &location);
gtk_accessible_text_update_contents (GTK_ACCESSIBLE_TEXT (text),
GTK_ACCESSIBLE_TEXT_CONTENT_CHANGE_INSERT,
location, location + g_utf8_strlen (str, len));
}
static void
gtk_text_history_delete_cb (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len)
{
GtkText *text = funcs_data;
gtk_editable_delete_text (GTK_EDITABLE (text), begin, end);
}
static void
gtk_text_history_select_cb (gpointer funcs_data,
int selection_insert,
int selection_bound)
{
GtkText *text = funcs_data;
gtk_editable_select_region (GTK_EDITABLE (text),
selection_insert,
selection_bound);
}
static void
gtk_text_set_enable_undo (GtkText *self,
gboolean enable_undo)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->enable_undo == enable_undo)
return ;
priv->enable_undo = enable_undo;
gtk_text_update_history (self);
g_object_notify (G_OBJECT (self), "enable-undo" );
}
static void
gtk_text_update_history (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_text_history_set_enabled (priv->history,
priv->enable_undo &&
priv->visible &&
priv->editable);
}
static void
input_interceptor_im_update (GtkEventControllerKey *controller,
GtkText *self)
{
g_signal_emit_by_name (self, "input-intercepted" );
}
static void
gtk_text_set_input_interceptor (GtkText *self,
GtkWidget *widget)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->input_interceptor == widget)
return ;
if (priv->input_interceptor)
{
gtk_widget_remove_controller (priv->input_interceptor,
priv->key_capture);
g_object_remove_weak_pointer (G_OBJECT (priv->input_interceptor),
(gpointer*) &priv->input_interceptor);
}
priv->input_interceptor = widget;
if (widget)
{
g_object_add_weak_pointer (G_OBJECT (priv->input_interceptor),
(gpointer*) &priv->input_interceptor);
priv->key_capture = gtk_event_controller_key_new ();
gtk_event_controller_set_static_name (priv->key_capture,
"gtk-text-key-capture" );
gtk_event_controller_set_propagation_phase (priv->key_capture,
GTK_PHASE_BUBBLE);
g_signal_connect (priv->key_capture, "im-update" ,
G_CALLBACK (input_interceptor_im_update), self);
gtk_event_controller_key_set_im_context (GTK_EVENT_CONTROLLER_KEY (priv->key_capture),
priv->im_context);
gtk_widget_add_controller (widget, priv->key_capture);
}
g_object_notify (G_OBJECT (self), "input-interceptor" );
}
static GtkWidget *
gtk_text_get_input_interceptor (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
return priv->input_interceptor;
}
/* {{{ GtkAccessibleText implementation */
static GBytes *
gtk_text_accessible_text_get_contents (GtkAccessibleText *self,
unsigned int start,
unsigned int end)
{
char *text = gtk_text_get_display_text (GTK_TEXT (self), 0 , -1 );
int len = g_utf8_strlen (text, -1 );
char *string;
gsize size;
start = CLAMP (start, 0 , len);
end = CLAMP (end, 0 , len);
if (end <= start)
{
string = g_strdup ("" );
size = 1 ;
}
else
{
const char *p, *q;
p = g_utf8_offset_to_pointer (text, start);
q = g_utf8_offset_to_pointer (text, end);
size = q - p + 1 ;
string = g_strndup (p, q - p);
}
g_free (text);
return g_bytes_new_take (string, size);
}
static GBytes *
gtk_text_accessible_text_get_contents_at (GtkAccessibleText *self,
unsigned int offset,
GtkAccessibleTextGranularity granularity,
unsigned int *start,
unsigned int *end)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (self));
char *string = gtk_pango_get_string_at (layout, offset, granularity, start, end);
return g_bytes_new_take (string, strlen (string));
}
static unsigned int
gtk_text_accessible_text_get_caret_position (GtkAccessibleText *self)
{
return gtk_editable_get_position (GTK_EDITABLE (self));
}
static gboolean
gtk_text_accessible_text_get_selection (GtkAccessibleText *self,
gsize *n_ranges,
GtkAccessibleTextRange **ranges)
{
int start, end;
if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (self), &start, &end))
return FALSE ;
*n_ranges = 1 ;
*ranges = g_new (GtkAccessibleTextRange, 1 );
(*ranges)[0 ].start = start;
(*ranges)[0 ].length = end - start;
return TRUE ;
}
static gboolean
gtk_text_accessible_text_get_attributes (GtkAccessibleText *self,
unsigned int offset,
gsize *n_ranges,
GtkAccessibleTextRange **ranges,
char ***attribute_names,
char ***attribute_values)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (self));
unsigned int start, end;
char **names, **values;
gtk_pango_get_run_attributes (layout, offset, &names, &values, &start, &end);
*n_ranges = g_strv_length (names);
*ranges = g_new (GtkAccessibleTextRange, *n_ranges);
for (unsigned i = 0 ; i < *n_ranges; i++)
{
GtkAccessibleTextRange *range = &(*ranges)[i];
range->start = start;
range->length = end - start;
}
*attribute_names = names;
*attribute_values = values;
return TRUE ;
}
static void
gtk_text_accessible_text_get_default_attributes (GtkAccessibleText *self,
char ***attribute_names,
char ***attribute_values)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (self));
char **names, **values;
gtk_pango_get_default_attributes (layout, &names, &values);
*attribute_names = names;
*attribute_values = values;
}
static gboolean
gtk_text_accessible_text_get_extents (GtkAccessibleText *self,
unsigned int start,
unsigned int end,
graphene_rect_t *extents)
{
PangoLayout *layout = gtk_text_get_layout (GTK_TEXT (self));
const char *text;
int lx, ly;
int range[2 ];
cairo_region_t *range_clip;
cairo_rectangle_int_t clip_rect;
layout = gtk_text_get_layout (GTK_TEXT (self));
text = gtk_entry_buffer_get_text (get_buffer (GTK_TEXT (self)));
get_layout_position (GTK_TEXT (self), &lx, &ly);
range[0 ] = g_utf8_pointer_to_offset (text, text + start);
range[1 ] = g_utf8_pointer_to_offset (text, text + end);
range_clip = gdk_pango_layout_get_clip_region (layout, lx, ly, range, 1 );
cairo_region_get_extents (range_clip, &clip_rect);
cairo_region_destroy (range_clip);
extents->origin.x = clip_rect.x;
extents->origin.y = clip_rect.y;
extents->size.width = clip_rect.width;
extents->size.height = clip_rect.height;
return TRUE ;
}
static gboolean
gtk_text_accessible_text_get_offset (GtkAccessibleText *self,
const graphene_point_t *point,
unsigned int *offset)
{
int lx;
int index;
const char *text;
gtk_text_get_layout_offsets (GTK_TEXT (self), &lx, NULL);
index = gtk_text_find_position (GTK_TEXT (self), point->x - lx);
text = gtk_entry_buffer_get_text (get_buffer (GTK_TEXT (self)));
*offset = (unsigned int ) g_utf8_pointer_to_offset (text, text + index);
return TRUE ;
}
static gboolean
gtk_text_accessible_text_set_caret_position (GtkAccessibleText *self,
unsigned int offset)
{
gtk_text_set_selection_bounds (GTK_TEXT (self), offset, offset);
return TRUE ;
}
static gboolean
gtk_text_accessible_text_set_selection (GtkAccessibleText *self,
gsize i,
GtkAccessibleTextRange *range)
{
if (i != 0 )
return FALSE ;
gtk_text_set_selection_bounds (GTK_TEXT (self), range->start, range->start + range->length);
return TRUE ;
}
static void
gtk_text_accessible_text_init (GtkAccessibleTextInterface *iface)
{
iface->get_contents = gtk_text_accessible_text_get_contents;
iface->get_contents_at = gtk_text_accessible_text_get_contents_at;
iface->get_caret_position = gtk_text_accessible_text_get_caret_position;
iface->get_selection = gtk_text_accessible_text_get_selection;
iface->get_attributes = gtk_text_accessible_text_get_attributes;
iface->get_default_attributes = gtk_text_accessible_text_get_default_attributes;
iface->get_extents = gtk_text_accessible_text_get_extents;
iface->get_offset = gtk_text_accessible_text_get_offset;
iface->set_caret_position = gtk_text_accessible_text_set_caret_position;
iface->set_selection = gtk_text_accessible_text_set_selection;
}
/* }}} */
/* vim:set foldmethod=marker: */
Messung V0.5 in Prozent C=98 H=96 G=96
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.327Bemerkung:
(vorverarbeitet am 2026-07-03)
¤
*Bot Zugriff