/*
* GTK - The GIMP Toolkit
* Copyright ( C ) 2022 Red Hat , Inc .
* All rights reserved .
*
* This Library is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details .
*
* You should have received a copy of the GNU Library General Public
* License along with this library . If not , see < http : //www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkalertdialog.h"
#include "gtkbutton.h"
#include "gtkdialogerror.h"
#include "deprecated/gtkmessagedialog.h"
#include <glib/gi18n-lib.h>
/**
* GtkAlertDialog :
*
* Collects the arguments that are needed to present a message to the user .
*
* The message is shown with the [ method @ Gtk . AlertDialog . choose ]
* function .
*
* If you don ' t need to wait for a button to be clicked , you can use
* [ method @ Gtk . AlertDialog . show ] .
*
* Since : 4 . 10
*/
/* {{{ GObject implementation */
struct _GtkAlertDialog
{
GObject parent_instance;
char *message;
char *detail;
char **buttons;
int cancel_button;
int default_button;
int cancel_return;
unsigned int modal : 1 ;
};
enum
{
PROP_MODAL = 1 ,
PROP_MESSAGE,
PROP_DETAIL,
PROP_BUTTONS,
PROP_CANCEL_BUTTON,
PROP_DEFAULT_BUTTON,
NUM_PROPERTIES
};
static GParamSpec *properties[NUM_PROPERTIES];
G_DEFINE_TYPE (GtkAlertDialog, gtk_alert_dialog, G_TYPE_OBJECT)
static void
gtk_alert_dialog_init (GtkAlertDialog *self)
{
self->modal = TRUE ;
self->cancel_button = -1 ;
self->default_button = -1 ;
}
static void
gtk_alert_dialog_finalize (GObject *object)
{
GtkAlertDialog *self = GTK_ALERT_DIALOG (object);
g_free (self->message);
g_free (self->detail);
g_strfreev (self->buttons);
G_OBJECT_CLASS (gtk_alert_dialog_parent_class)->finalize (object);
}
static void
gtk_alert_dialog_get_property (GObject *object,
unsigned int property_id,
GValue *value,
GParamSpec *pspec)
{
GtkAlertDialog *self = GTK_ALERT_DIALOG (object);
switch (property_id)
{
case PROP_MODAL:
g_value_set_boolean (value, self->modal);
break ;
case PROP_MESSAGE:
g_value_set_string (value, self->message);
break ;
case PROP_DETAIL:
g_value_set_string (value, self->detail);
break ;
case PROP_BUTTONS:
g_value_set_boxed (value, self->buttons);
break ;
case PROP_CANCEL_BUTTON:
g_value_set_int (value, self->cancel_button);
break ;
case PROP_DEFAULT_BUTTON:
g_value_set_int (value, self->default_button);
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break ;
}
}
static void
gtk_alert_dialog_set_property (GObject *object,
unsigned int prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkAlertDialog *self = GTK_ALERT_DIALOG (object);
switch (prop_id)
{
case PROP_MODAL:
gtk_alert_dialog_set_modal (self, g_value_get_boolean (value));
break ;
case PROP_MESSAGE:
gtk_alert_dialog_set_message (self, g_value_get_string (value));
break ;
case PROP_DETAIL:
gtk_alert_dialog_set_detail (self, g_value_get_string (value));
break ;
case PROP_BUTTONS:
gtk_alert_dialog_set_buttons (self, g_value_get_boxed (value));
break ;
case PROP_CANCEL_BUTTON:
gtk_alert_dialog_set_cancel_button (self, g_value_get_int (value));
break ;
case PROP_DEFAULT_BUTTON:
gtk_alert_dialog_set_default_button (self, g_value_get_int (value));
break ;
default :
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break ;
}
}
static void
gtk_alert_dialog_class_init (GtkAlertDialogClass *class )
{
GObjectClass *object_class = G_OBJECT_CLASS (class );
object_class->finalize = gtk_alert_dialog_finalize;
object_class->get_property = gtk_alert_dialog_get_property;
object_class->set_property = gtk_alert_dialog_set_property;
/**
* GtkAlertDialog : modal :
*
* Whether the alert is modal .
*
* Since : 4 . 10
*/
properties[PROP_MODAL] =
g_param_spec_boolean ("modal" , NULL, NULL,
TRUE ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkAlertDialog : message :
*
* The message for the alert .
*
* Since : 4 . 10
*/
properties[PROP_MESSAGE] =
g_param_spec_string ("message" , NULL, NULL,
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkAlertDialog : detail :
*
* The detail text for the alert .
*
* Since : 4 . 10
*/
properties[PROP_DETAIL] =
g_param_spec_string ("detail" , NULL, NULL,
NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkAlertDialog : buttons :
*
* Labels for buttons to show in the alert .
*
* The labels should be translated and may contain
* a ` _ ` character to indicate the mnemonic character .
*
* If this property is not set , then a ' Close ' button is
* automatically created .
*
* Since : 4 . 10
*/
properties[PROP_BUTTONS] =
g_param_spec_boxed ("buttons" , NULL, NULL,
G_TYPE_STRV,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkAlertDialog : cancel - button :
*
* Determines what happens when the < kbd > Escape < / kbd > key is pressed
* while the alert is shown .
*
* If this property holds the index of a button in [ property @ Gtk . AlertDialog : buttons ] ,
* then pressing Escape is treated as if that button was pressed . If it is - 1
* or not a valid index for the ` buttons ` array , then an error is returned .
*
* If ` buttons ` is ` NULL ` , then the automatically created ' Close ' button
* is treated as both cancel and default button , so 0 is returned .
*
* Since : 4 . 10
*/
properties[PROP_CANCEL_BUTTON] =
g_param_spec_int ("cancel-button" , NULL, NULL,
-1 , G_MAXINT, -1 ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkAlertDialog : default - button :
*
* Determines what happens when the < kbd > Return < / kbd > key is pressed
* while the alert is shown .
*
* If this property holds the index of a button in [ property @ Gtk . AlertDialog : buttons ] ,
* then pressing Return is treated as if that button was pressed . If it is - 1
* or not a valid index for the ` buttons ` array , then nothing happens .
*
* If ` buttons ` is ` NULL ` , then the automatically created ' Close ' button
* is treated as both cancel and default button , so 0 is returned .
*
* Since : 4 . 10
*/
properties[PROP_DEFAULT_BUTTON] =
g_param_spec_int ("default-button" , NULL, NULL,
-1 , G_MAXINT, -1 ,
G_PARAM_READWRITE | G_PARAM_STATIC_NAME | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
}
/* }}} */
/* {{{ API: Constructor */
/**
* gtk_alert_dialog_new :
* @ format : ` printf ( ) ` - style format string
* @ . . . : arguments for @ format
*
* Creates a new ` GtkAlertDialog ` object .
*
* The message will be set to the formatted string
* resulting from the arguments .
*
* Returns : the new ` GtkAlertDialog `
*
* Since : 4 . 10
*/
GtkAlertDialog *
gtk_alert_dialog_new (const char *format,
...)
{
va_list args;
char *message;
GtkAlertDialog *dialog;
va_start (args, format);
message = g_strdup_vprintf (format, args);
va_end (args);
dialog = g_object_new (GTK_TYPE_ALERT_DIALOG,
"message" , message,
NULL);
g_free (message);
return dialog;
}
/* }}} */
/* {{{ API: Getters and setters */
/**
* gtk_alert_dialog_get_modal :
* @ self : an alert dialog
*
* Returns whether the alert blocks interaction
* with the parent window while it is presented .
*
* Returns : true if the alert is modal
*
* Since : 4 . 10
*/
gboolean
gtk_alert_dialog_get_modal (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), TRUE );
return self->modal;
}
/**
* gtk_alert_dialog_set_modal :
* @ self : an alert dialog
* @ modal : the new value
*
* Sets whether the alert blocks interaction
* with the parent window while it is presented .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_modal (GtkAlertDialog *self,
gboolean modal)
{
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
if (self->modal == modal)
return ;
self->modal = modal;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODAL]);
}
/**
* gtk_alert_dialog_get_message :
* @ self : an alert dialog
*
* Returns the message that will be shown in the alert .
*
* Returns : the message
*
* Since : 4 . 10
*/
const char *
gtk_alert_dialog_get_message (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), NULL);
return self->message;
}
/**
* gtk_alert_dialog_set_message :
* @ self : an alert dialog
* @ message : the new message
*
* Sets the message that will be shown in the alert .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_message (GtkAlertDialog *self,
const char *message)
{
char *new_message;
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
g_return_if_fail (message != NULL);
if (g_strcmp0 (self->message, message) == 0 )
return ;
new_message = g_strdup (message);
g_free (self->message);
self->message = new_message;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MESSAGE]);
}
/**
* gtk_alert_dialog_get_detail :
* @ self : an alert dialog
*
* Returns the detail text that will be shown in the alert .
*
* Returns : the detail text
*
* Since : 4 . 10
*/
const char *
gtk_alert_dialog_get_detail (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), NULL);
return self->detail;
}
/**
* gtk_alert_dialog_set_detail :
* @ self : an alert dialog
* @ detail : the new detail text
*
* Sets the detail text that will be shown in the alert .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_detail (GtkAlertDialog *self,
const char *detail)
{
char *new_detail;
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
g_return_if_fail (detail != NULL);
if (g_strcmp0 (self->detail, detail) == 0 )
return ;
new_detail = g_strdup (detail);
g_free (self->detail);
self->detail = new_detail;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_DETAIL]);
}
/**
* gtk_alert_dialog_get_buttons :
* @ self : an alert dialog
*
* Returns the button labels for the alert .
*
* Returns : ( nullable ) ( transfer none ) ( array zero - terminated = 1 ) : the button labels
*
* Since : 4 . 10
*/
const char * const *
gtk_alert_dialog_get_buttons (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), NULL);
return (const char * const *) self->buttons;
}
/**
* gtk_alert_dialog_set_buttons :
* @ self : an alert dialog
* @ labels : ( array zero - terminated = 1 ) : the new button labels
*
* Sets the button labels for the alert .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_buttons (GtkAlertDialog *self,
const char * const *labels)
{
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
g_return_if_fail (labels != NULL);
g_strfreev (self->buttons);
self->buttons = g_strdupv ((char **)labels);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_BUTTONS]);
}
/**
* gtk_alert_dialog_get_cancel_button :
* @ self : an alert dialog
*
* Returns the index of the cancel button .
*
* Returns : the index of the cancel button , or - 1
*
* Since : 4 . 10
*/
int
gtk_alert_dialog_get_cancel_button (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), -1 );
return self->cancel_button;
}
/**
* gtk_alert_dialog_set_cancel_button :
* @ self : an alert dialog
* @ button : the new cancel button
*
* Sets the index of the cancel button .
*
* See [ property @ Gtk . AlertDialog : cancel - button ] for
* details of how this value is used .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_cancel_button (GtkAlertDialog *self,
int button)
{
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
if (self->cancel_button == button)
return ;
self->cancel_button = button;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_CANCEL_BUTTON]);
}
/**
* gtk_alert_dialog_get_default_button :
* @ self : an alert dialog
*
* Returns the index of the default button .
*
* Returns : the index of the default button , or - 1
*
* Since : 4 . 10
*/
int
gtk_alert_dialog_get_default_button (GtkAlertDialog *self)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), -1 );
return self->default_button;
}
/**
* gtk_alert_dialog_set_default_button :
* @ self : an alert dialog
* @ button : the new default button
*
* Sets the index of the default button .
*
* See [ property @ Gtk . AlertDialog : default - button ] for
* details of how this value is used .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_set_default_button (GtkAlertDialog *self,
int button)
{
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
if (self->default_button == button)
return ;
self->default_button = button;
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_DEFAULT_BUTTON]);
}
/* }}} */
/* {{{ Async implementation */
static void response_cb (GTask *task,
int response);
static void
cancelled_cb (GCancellable *cancellable,
GTask *task)
{
response_cb (task, GTK_RESPONSE_CLOSE);
}
static void
response_cb (GTask *task,
int response)
{
GCancellable *cancellable;
cancellable = g_task_get_cancellable (task);
if (cancellable)
g_signal_handlers_disconnect_by_func (cancellable, cancelled_cb, task);
if (response == GTK_RESPONSE_CLOSE)
{
g_task_return_new_error (task, GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_CANCELLED, "Cancelled by application" );
}
else if (response >= 0 )
{
g_task_return_int (task, response);
}
else
{
GtkAlertDialog *self = GTK_ALERT_DIALOG (g_task_get_source_object (task));
if (self->cancel_return >= 0 )
g_task_return_int (task, self->cancel_return);
else
g_task_return_new_error (task, GTK_DIALOG_ERROR, GTK_DIALOG_ERROR_DISMISSED, "Dismissed by user" );
}
g_object_unref (task);
}
static void
dialog_response (GtkDialog *dialog,
int response,
GTask *task)
{
response_cb (task, response);
}
static GtkWidget *
create_message_dialog (GtkAlertDialog *self,
GtkWindow *parent)
{
GtkWidget *window;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
window = g_object_new (GTK_TYPE_MESSAGE_DIALOG,
"transient-for" , parent,
"destroy-with-parent" , TRUE ,
"modal" , self->modal,
"text" , self->message,
"secondary-text" , self->detail,
NULL);
if (self->buttons && self->buttons[0 ])
{
self->cancel_return = -1 ;
for (int i = 0 ; self->buttons[i]; i++)
{
gtk_dialog_add_button (GTK_DIALOG (window), self->buttons[i], i);
if (self->default_button == i)
gtk_dialog_set_default_response (GTK_DIALOG (window), i);
if (self->cancel_button == i)
self->cancel_return = i;
}
}
else
{
gtk_dialog_add_button (GTK_DIALOG (window), _("_Close" ), 0 );
gtk_dialog_set_default_response (GTK_DIALOG (window), 0 );
self->cancel_return = 0 ;
}
G_GNUC_END_IGNORE_DEPRECATIONS
return window;
}
/* }}} */
/* {{{ Async API */
/**
* gtk_alert_dialog_choose :
* @ self : an alert dialog
* @ parent : ( nullable ) : the parent window
* @ cancellable : ( nullable ) : a cancellable to cancel the operation
* @ callback : ( nullable ) ( scope async ) ( closure user_data ) : a callback to call
* when the operation is complete
* @ user_data : data to pass to @ callback
*
* Shows the alert to the user .
*
* It is ok to pass ` NULL ` for the callback if the alert
* does not have more than one button . A simpler API for
* this case is [ method @ Gtk . AlertDialog . show ] .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_choose (GtkAlertDialog *self,
GtkWindow *parent,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GtkWidget *window;
GTask *task;
g_return_if_fail (GTK_IS_ALERT_DIALOG (self));
window = create_message_dialog (self, parent);
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task, gtk_alert_dialog_choose);
g_task_set_task_data (task, window, (GDestroyNotify) gtk_window_destroy);
if (cancellable)
g_signal_connect (cancellable, "cancelled" , G_CALLBACK (cancelled_cb), task);
g_signal_connect (window, "response" , G_CALLBACK (dialog_response), task);
gtk_window_present (GTK_WINDOW (window));
}
/**
* gtk_alert_dialog_choose_finish :
* @ self : an alert dialog
* @ result : the result
* @ error : return location for a [ enum @ Gtk . DialogError ] error
*
* Finishes the [ method @ Gtk . AlertDialog . choose ] call .
*
* Returns : the index of the button that was clicked , or - 1 if
* the dialog was cancelled and [ property @ Gtk . AlertDialog : cancel - button ]
* is not set
*
* Since : 4 . 10
*/
int
gtk_alert_dialog_choose_finish (GtkAlertDialog *self,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (GTK_IS_ALERT_DIALOG (self), -1 );
g_return_val_if_fail (g_task_is_valid (result, self), -1 );
g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) == gtk_alert_dialog_choose, -1 );
/* Destroy the dialog window not to be bound to GTask lifecycle */
g_task_set_task_data (G_TASK (result), NULL, NULL);
return (int ) g_task_propagate_int (G_TASK (result), error);
}
/**
* gtk_alert_dialog_show :
* @ self : an alert dialog
* @ parent : ( nullable ) : the parent window
*
* Shows the alert to the user .
*
* This function is a simpler version of [ method @ Gtk . AlertDialog . choose ]
* intended for dialogs with a single button .
*
* If you want to cancel the dialog or if the alert has more than one
* button , you should use that function instead and provide it with a
* [ class @ Gio . Cancellable ] and callback respectively .
*
* Since : 4 . 10
*/
void
gtk_alert_dialog_show (GtkAlertDialog *self,
GtkWindow *parent)
{
gtk_alert_dialog_choose (self, parent, NULL, NULL, NULL);
}
/* }}} */
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