Quelle nsFilePicker.h Sprache: C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsFilePicker_h__
#define nsFilePicker_h__

#include <gtk/gtk.h>

#include "nsBaseFilePicker.h"
#include "nsString.h"
#include "nsTArray.h"
#include "nsCOMArray.h"

class nsIWidget;
class nsIFile;

class nsFilePicker final : public nsBaseFilePicker {
public:
  nsFilePicker();

  NS_DECL_ISUPPORTS

  // nsIFilePicker (less what's in nsBaseFilePicker)
  NS_IMETHOD Open(nsIFilePickerShownCallback* aCallback) override;
  NS_IMETHOD IsModeSupported(nsIFilePicker::Mode, JSContext*,
                             mozilla::dom::Promise**) override;
  NS_IMETHOD AppendFilters(int32_t aFilterMask) override;
  NS_IMETHOD AppendFilter(const nsAString& aTitle,
                          const nsAString& aFilter) override;
  NS_IMETHOD SetDefaultString(const nsAString& aString) override;
  NS_IMETHOD GetDefaultString(nsAString& aString) override;
  NS_IMETHOD SetDefaultExtension(const nsAString& aExtension) override;
  NS_IMETHOD GetDefaultExtension(nsAString& aExtension) override;
  NS_IMETHOD GetFilterIndex(int32_t* aFilterIndex) override;
  NS_IMETHOD SetFilterIndex(int32_t aFilterIndex) override;
  NS_IMETHOD GetFile(nsIFile** aFile) override;
  NS_IMETHOD GetFileURL(nsIURI** aFileURL) override;
  NS_IMETHOD GetFiles(nsISimpleEnumerator** aFiles) override;

  // nsBaseFilePicker
  virtual void InitNative(nsIWidget* aParent, const nsAString& aTitle) override;

  static void Shutdown();

protected:
  virtual ~nsFilePicker();

  void ReadValuesFromFileChooser(void* file_chooser);

  bool WarnForNonReadableFile(void* file_chooser);

  static void OnResponse(void* file_chooser, gint response_id,
                         gpointer user_data);
  static void OnDestroy(GtkWidget* file_chooser, gpointer user_data);
  void Done(void* file_chooser, gint response_id);

  nsCOMPtr<nsIWidget> mParentWidget;
  nsCOMPtr<nsIFilePickerShownCallback> mCallback;
  nsCOMArray<nsIFile> mFiles;

  int16_t mSelectedType = 0;
  bool mAllowURLs = false;
  nsCString mFileURL;
  nsString mTitle;
  nsString mDefault;
  nsString mDefaultExtension;

  nsTArray<nsCString> mFilters;
  nsTArray<nsCString> mFilterNames;

private:
  static nsIFile* mPrevDisplayDirectory;

  void* GtkFileChooserNew(const gchar* title, GtkWindow* parent,
                          GtkFileChooserAction action,
                          const gchar* accept_label);
  void GtkFileChooserShow(void* file_chooser);
  void GtkFileChooserDestroy(void* file_chooser);
  void GtkFileChooserSetModal(void* file_chooser, GtkWindow* parent_widget,
                              gboolean modal);

  GtkFileChooserWidget* mFileChooserDelegate = nullptr;
  bool mUseNativeFileChooser;

  /**
   * mFileChooser is non-null while open.
   */
  void* mFileChooser = nullptr;
};

#endif

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