forked from AuroraMiddleware/gtk
f96f69996a
The height of the text buttons depends on the font height, whereas the search button has a fixed-size icon in it... Prevent unevent heights by putting them all in a size group. https://bugzilla.gnome.org/show_bug.cgi?id=745263
665 lines
21 KiB
C
665 lines
21 KiB
C
/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
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/* GTK - The GIMP Toolkit
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* gtkfilechooserdialog.c: File selector dialog
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* Copyright (C) 2003, Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkfilechooserdialog.h"
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#include "gtkfilechooserprivate.h"
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#include "gtkfilechooserwidget.h"
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#include "gtkfilechooserutils.h"
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#include "gtkfilechooserembed.h"
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#include "gtkfilesystem.h"
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#include "gtksizerequest.h"
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#include "gtktypebuiltins.h"
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#include "gtkintl.h"
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#include "gtksettings.h"
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#include "gtktogglebutton.h"
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#include "gtkstylecontext.h"
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#include "gtkheaderbar.h"
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#include "gtkdialogprivate.h"
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#include <stdarg.h>
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/**
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* SECTION:gtkfilechooserdialog
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* @Short_description: A file chooser dialog, suitable for “File/Open” or “File/Save” commands
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* @Title: GtkFileChooserDialog
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* @See_also: #GtkFileChooser, #GtkDialog
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*
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* #GtkFileChooserDialog is a dialog box suitable for use with
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* “File/Open” or “File/Save as” commands. This widget works by
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* putting a #GtkFileChooserWidget inside a #GtkDialog. It exposes
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* the #GtkFileChooser interface, so you can use all of the
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* #GtkFileChooser functions on the file chooser dialog as well as
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* those for #GtkDialog.
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*
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* Note that #GtkFileChooserDialog does not have any methods of its
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* own. Instead, you should use the functions that work on a
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* #GtkFileChooser.
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*
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* ## Typical usage ## {#gtkfilechooser-typical-usage}
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*
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* In the simplest of cases, you can the following code to use
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* #GtkFileChooserDialog to select a file for opening:
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*
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* |[
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* GtkWidget *dialog;
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* GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;
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* gint res;
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*
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* dialog = gtk_file_chooser_dialog_new ("Open File",
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* parent_window,
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* action,
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* _("_Cancel"),
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* GTK_RESPONSE_CANCEL,
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* _("_Open"),
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* GTK_RESPONSE_ACCEPT,
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* NULL);
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*
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* res = gtk_dialog_run (GTK_DIALOG (dialog));
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* if (res == GTK_RESPONSE_ACCEPT)
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* {
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* char *filename;
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* GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog);
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* filename = gtk_file_chooser_get_filename (chooser);
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* open_file (filename);
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* g_free (filename);
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* }
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*
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* gtk_widget_destroy (dialog);
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* ]|
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*
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* To use a dialog for saving, you can use this:
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*
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* |[
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* GtkWidget *dialog;
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* GtkFileChooser *chooser;
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* GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_SAVE;
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* gint res;
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*
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* dialog = gtk_file_chooser_dialog_new ("Save File",
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* parent_window,
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* action,
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* _("_Cancel"),
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* GTK_RESPONSE_CANCEL,
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* _("_Save"),
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* GTK_RESPONSE_ACCEPT,
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* NULL);
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* chooser = GTK_FILE_CHOOSER (dialog);
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*
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* gtk_file_chooser_set_do_overwrite_confirmation (chooser, TRUE);
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*
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* if (user_edited_a_new_document)
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* gtk_file_chooser_set_current_name (chooser,
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* _("Untitled document"));
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* else
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* gtk_file_chooser_set_filename (chooser,
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* existing_filename);
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*
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* res = gtk_dialog_run (GTK_DIALOG (dialog));
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* if (res == GTK_RESPONSE_ACCEPT)
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* {
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* char *filename;
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*
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* filename = gtk_file_chooser_get_filename (chooser);
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* save_to_file (filename);
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* g_free (filename);
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* }
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*
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* gtk_widget_destroy (dialog);
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* ]|
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*
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* ## Setting up a file chooser dialog ## {#gtkfilechooserdialog-setting-up}
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*
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* There are various cases in which you may need to use a #GtkFileChooserDialog:
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*
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* - To select a file for opening. Use #GTK_FILE_CHOOSER_ACTION_OPEN.
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*
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* - To save a file for the first time. Use #GTK_FILE_CHOOSER_ACTION_SAVE,
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* and suggest a name such as “Untitled” with gtk_file_chooser_set_current_name().
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*
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* - To save a file under a different name. Use #GTK_FILE_CHOOSER_ACTION_SAVE,
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* and set the existing filename with gtk_file_chooser_set_filename().
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*
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* - To choose a folder instead of a file. Use #GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER.
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*
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* Note that old versions of the file chooser’s documentation suggested
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* using gtk_file_chooser_set_current_folder() in various
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* situations, with the intention of letting the application
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* suggest a reasonable default folder. This is no longer
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* considered to be a good policy, as now the file chooser is
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* able to make good suggestions on its own. In general, you
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* should only cause the file chooser to show a specific folder
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* when it is appropriate to use gtk_file_chooser_set_filename(),
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* i.e. when you are doing a Save As command and you already
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* have a file saved somewhere.
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* ## Response Codes ## {#gtkfilechooserdialog-responses}
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*
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* #GtkFileChooserDialog inherits from #GtkDialog, so buttons that
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* go in its action area have response codes such as
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* #GTK_RESPONSE_ACCEPT and #GTK_RESPONSE_CANCEL. For example, you
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* could call gtk_file_chooser_dialog_new() as follows:
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*
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* |[
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* GtkWidget *dialog;
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* GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;
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*
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* dialog = gtk_file_chooser_dialog_new ("Open File",
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* parent_window,
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* action,
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* _("_Cancel"),
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* GTK_RESPONSE_CANCEL,
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* _("_Open"),
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* GTK_RESPONSE_ACCEPT,
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* NULL);
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* ]|
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*
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* This will create buttons for “Cancel” and “Open” that use stock
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* response identifiers from #GtkResponseType. For most dialog
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* boxes you can use your own custom response codes rather than the
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* ones in #GtkResponseType, but #GtkFileChooserDialog assumes that
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* its “accept”-type action, e.g. an “Open” or “Save” button,
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* will have one of the following response codes:
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*
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* - #GTK_RESPONSE_ACCEPT
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* - #GTK_RESPONSE_OK
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* - #GTK_RESPONSE_YES
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* - #GTK_RESPONSE_APPLY
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*
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* This is because #GtkFileChooserDialog must intercept responses
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* and switch to folders if appropriate, rather than letting the
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* dialog terminate — the implementation uses these known
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* response codes to know which responses can be blocked if
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* appropriate.
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*
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* To summarize, make sure you use a
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* [stock response code][gtkfilechooserdialog-responses]
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* when you use #GtkFileChooserDialog to ensure proper operation.
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*/
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struct _GtkFileChooserDialogPrivate
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{
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GtkWidget *widget;
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GtkSizeGroup *buttons;
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/* for use with GtkFileChooserEmbed */
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gboolean response_requested;
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gboolean search_setup;
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};
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static void gtk_file_chooser_dialog_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_file_chooser_dialog_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_file_chooser_dialog_map (GtkWidget *widget);
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static void gtk_file_chooser_dialog_unmap (GtkWidget *widget);
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static void file_chooser_widget_file_activated (GtkFileChooser *chooser,
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GtkFileChooserDialog *dialog);
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static void file_chooser_widget_default_size_changed (GtkWidget *widget,
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GtkFileChooserDialog *dialog);
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static void file_chooser_widget_response_requested (GtkWidget *widget,
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GtkFileChooserDialog *dialog);
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static void file_chooser_widget_selection_changed (GtkWidget *widget,
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GtkFileChooserDialog *dialog);
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static void response_cb (GtkDialog *dialog,
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gint response_id);
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G_DEFINE_TYPE_WITH_CODE (GtkFileChooserDialog, gtk_file_chooser_dialog, GTK_TYPE_DIALOG,
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G_ADD_PRIVATE (GtkFileChooserDialog)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_FILE_CHOOSER,
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_gtk_file_chooser_delegate_iface_init))
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static void
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gtk_file_chooser_dialog_class_init (GtkFileChooserDialogClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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gobject_class->set_property = gtk_file_chooser_dialog_set_property;
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gobject_class->get_property = gtk_file_chooser_dialog_get_property;
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widget_class->map = gtk_file_chooser_dialog_map;
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widget_class->unmap = gtk_file_chooser_dialog_unmap;
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gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_FILE_CHOOSER);
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_gtk_file_chooser_install_properties (gobject_class);
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/* Bind class to template
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*/
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gtk_widget_class_set_template_from_resource (widget_class,
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"/org/gtk/libgtk/ui/gtkfilechooserdialog.ui");
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gtk_widget_class_bind_template_child_private (widget_class, GtkFileChooserDialog, widget);
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gtk_widget_class_bind_template_child_private (widget_class, GtkFileChooserDialog, buttons);
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gtk_widget_class_bind_template_callback (widget_class, response_cb);
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gtk_widget_class_bind_template_callback (widget_class, file_chooser_widget_file_activated);
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gtk_widget_class_bind_template_callback (widget_class, file_chooser_widget_default_size_changed);
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gtk_widget_class_bind_template_callback (widget_class, file_chooser_widget_response_requested);
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gtk_widget_class_bind_template_callback (widget_class, file_chooser_widget_selection_changed);
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}
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static void
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gtk_file_chooser_dialog_init (GtkFileChooserDialog *dialog)
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{
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dialog->priv = gtk_file_chooser_dialog_get_instance_private (dialog);
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dialog->priv->response_requested = FALSE;
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gtk_widget_init_template (GTK_WIDGET (dialog));
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gtk_dialog_set_use_header_bar_from_setting (GTK_DIALOG (dialog));
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_gtk_file_chooser_set_delegate (GTK_FILE_CHOOSER (dialog),
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GTK_FILE_CHOOSER (dialog->priv->widget));
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}
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static GtkWidget *
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get_accept_action_widget (GtkDialog *dialog,
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gboolean sensitive_only)
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{
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gint response[] = {
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GTK_RESPONSE_ACCEPT,
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GTK_RESPONSE_OK,
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GTK_RESPONSE_YES,
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GTK_RESPONSE_APPLY
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};
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gint i;
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GtkWidget *widget;
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for (i = 0; i < G_N_ELEMENTS (response); i++)
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{
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widget = gtk_dialog_get_widget_for_response (dialog, response[i]);
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if (widget)
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{
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if (!sensitive_only)
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return widget;
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if (gtk_widget_is_sensitive (widget))
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return widget;
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}
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}
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return NULL;
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}
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static gboolean
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is_stock_accept_response_id (int response_id)
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{
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return (response_id == GTK_RESPONSE_ACCEPT
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|| response_id == GTK_RESPONSE_OK
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|| response_id == GTK_RESPONSE_YES
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|| response_id == GTK_RESPONSE_APPLY);
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}
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/* Callback used when the user activates a file in the file chooser widget */
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static void
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file_chooser_widget_file_activated (GtkFileChooser *chooser,
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GtkFileChooserDialog *dialog)
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{
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GtkWidget *widget;
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if (gtk_window_activate_default (GTK_WINDOW (dialog)))
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return;
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/* There probably isn't a default widget, so make things easier for the
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* programmer by looking for a reasonable button on our own.
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*/
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widget = get_accept_action_widget (GTK_DIALOG (dialog), TRUE);
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if (widget)
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gtk_widget_activate (widget); /* Should we gtk_dialog_response (dialog, response_id) instead? */
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}
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#if 0
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/* FIXME: to see why this function is ifdef-ed out, see the comment below in
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* file_chooser_widget_default_size_changed().
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*/
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static void
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load_position (int *out_xpos, int *out_ypos)
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{
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GtkFileChooserSettings *settings;
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int x, y, width, height;
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settings = _gtk_file_chooser_settings_new ();
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_gtk_file_chooser_settings_get_geometry (settings, &x, &y, &width, &height);
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g_object_unref (settings);
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*out_xpos = x;
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*out_ypos = y;
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}
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#endif
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static void
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file_chooser_widget_default_size_changed (GtkWidget *widget,
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GtkFileChooserDialog *dialog)
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{
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GtkFileChooserDialogPrivate *priv;
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gint default_width, default_height;
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GtkRequisition req, widget_req;
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priv = gtk_file_chooser_dialog_get_instance_private (dialog);
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/* Unset any previously set size */
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gtk_widget_set_size_request (GTK_WIDGET (dialog), -1, -1);
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if (gtk_widget_is_drawable (widget))
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{
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/* Force a size request of everything before we start. This will make sure
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* that widget->requisition is meaningful. */
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gtk_widget_get_preferred_size (GTK_WIDGET (dialog),
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&req, NULL);
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gtk_widget_get_preferred_size (widget,
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&widget_req, NULL);
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}
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_gtk_file_chooser_embed_get_default_size (GTK_FILE_CHOOSER_EMBED (priv->widget),
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&default_width, &default_height);
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gtk_window_resize (GTK_WINDOW (dialog), default_width, default_height);
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if (!gtk_widget_get_mapped (GTK_WIDGET (dialog)))
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{
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#if 0
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/* FIXME: the code to restore the position does not work yet. It is not
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* clear whether it is actually desirable --- if enabled, applications
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* would not be able to say "center the file chooser on top of my toplevel
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* window". So, we don't use this code at all.
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*/
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load_position (&xpos, &ypos);
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if (xpos >= 0 && ypos >= 0)
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{
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gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_NONE);
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gtk_window_move (GTK_WINDOW (dialog), xpos, ypos);
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}
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#endif
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}
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}
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static void
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file_chooser_widget_selection_changed (GtkWidget *widget,
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GtkFileChooserDialog *dialog)
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{
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GtkWidget *button;
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GSList *uris;
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gboolean sensitive;
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button = get_accept_action_widget (GTK_DIALOG (dialog), FALSE);
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if (button == NULL)
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return;
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uris = gtk_file_chooser_get_uris (GTK_FILE_CHOOSER (dialog->priv->widget));
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sensitive = (uris != NULL);
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gtk_widget_set_sensitive (button, sensitive);
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if (uris)
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g_slist_free_full (uris, g_free);
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}
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static void
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file_chooser_widget_response_requested (GtkWidget *widget,
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GtkFileChooserDialog *dialog)
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{
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GtkWidget *button;
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dialog->priv->response_requested = TRUE;
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if (gtk_window_activate_default (GTK_WINDOW (dialog)))
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return;
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/* There probably isn't a default widget, so make things easier for the
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* programmer by looking for a reasonable button on our own.
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*/
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button = get_accept_action_widget (GTK_DIALOG (dialog), TRUE);
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if (button)
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{
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gtk_widget_activate (button);
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return;
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}
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dialog->priv->response_requested = FALSE;
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}
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static void
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gtk_file_chooser_dialog_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkFileChooserDialogPrivate *priv;
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priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (object));
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switch (prop_id)
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{
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default:
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g_object_set_property (G_OBJECT (priv->widget), pspec->name, value);
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break;
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}
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}
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static void
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gtk_file_chooser_dialog_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkFileChooserDialogPrivate *priv;
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priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (object));
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g_object_get_property (G_OBJECT (priv->widget), pspec->name, value);
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}
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static void
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add_button (GtkWidget *button, gpointer data)
|
||
{
|
||
GtkFileChooserDialog *dialog = data;
|
||
|
||
if (GTK_IS_BUTTON (button))
|
||
gtk_size_group_add_widget (dialog->priv->buttons, button);
|
||
}
|
||
|
||
static void
|
||
setup_search (GtkFileChooserDialog *dialog)
|
||
{
|
||
gboolean use_header;
|
||
|
||
if (dialog->priv->search_setup)
|
||
return;
|
||
|
||
dialog->priv->search_setup = TRUE;
|
||
|
||
g_object_get (dialog, "use-header-bar", &use_header, NULL);
|
||
if (use_header)
|
||
{
|
||
GtkWidget *button;
|
||
GtkWidget *image;
|
||
GtkWidget *header;
|
||
|
||
button = gtk_toggle_button_new ();
|
||
gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
|
||
image = gtk_image_new_from_icon_name ("edit-find-symbolic", GTK_ICON_SIZE_MENU);
|
||
gtk_container_add (GTK_CONTAINER (button), image);
|
||
gtk_style_context_add_class (gtk_widget_get_style_context (button), "image-button");
|
||
gtk_style_context_remove_class (gtk_widget_get_style_context (button), "text-button");
|
||
gtk_widget_show (image);
|
||
gtk_widget_show (button);
|
||
|
||
header = gtk_dialog_get_header_bar (GTK_DIALOG (dialog));
|
||
gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
|
||
|
||
g_object_bind_property (button, "active",
|
||
dialog->priv->widget, "search-mode",
|
||
G_BINDING_BIDIRECTIONAL);
|
||
|
||
gtk_container_forall (GTK_CONTAINER (header), add_button, dialog);
|
||
}
|
||
}
|
||
|
||
static void
|
||
ensure_default_response (GtkFileChooserDialog *dialog)
|
||
{
|
||
GtkWidget *widget;
|
||
|
||
widget = get_accept_action_widget (GTK_DIALOG (dialog), TRUE);
|
||
if (widget)
|
||
gtk_widget_grab_default (widget);
|
||
}
|
||
|
||
/* GtkWidget::map handler */
|
||
static void
|
||
gtk_file_chooser_dialog_map (GtkWidget *widget)
|
||
{
|
||
GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget);
|
||
GtkFileChooserDialogPrivate *priv = dialog->priv;
|
||
|
||
setup_search (dialog);
|
||
ensure_default_response (dialog);
|
||
|
||
_gtk_file_chooser_embed_initial_focus (GTK_FILE_CHOOSER_EMBED (priv->widget));
|
||
|
||
GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->map (widget);
|
||
}
|
||
|
||
static void
|
||
save_dialog_geometry (GtkFileChooserDialog *dialog)
|
||
{
|
||
GtkWindow *window;
|
||
GSettings *settings;
|
||
int x, y, width, height;
|
||
|
||
settings = _gtk_file_chooser_get_settings_for_widget (GTK_WIDGET (dialog));
|
||
|
||
window = GTK_WINDOW (dialog);
|
||
|
||
gtk_window_get_position (window, &x, &y);
|
||
gtk_window_get_size (window, &width, &height);
|
||
|
||
g_settings_set (settings, SETTINGS_KEY_WINDOW_POSITION, "(ii)", x, y);
|
||
g_settings_set (settings, SETTINGS_KEY_WINDOW_SIZE, "(ii)", width, height);
|
||
}
|
||
|
||
/* GtkWidget::unmap handler */
|
||
static void
|
||
gtk_file_chooser_dialog_unmap (GtkWidget *widget)
|
||
{
|
||
GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget);
|
||
|
||
save_dialog_geometry (dialog);
|
||
|
||
GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->unmap (widget);
|
||
}
|
||
|
||
/* We do a signal connection here rather than overriding the method in
|
||
* class_init because GtkDialog::response is a RUN_LAST signal. We want *our*
|
||
* handler to be run *first*, regardless of whether the user installs response
|
||
* handlers of his own.
|
||
*/
|
||
static void
|
||
response_cb (GtkDialog *dialog,
|
||
gint response_id)
|
||
{
|
||
GtkFileChooserDialogPrivate *priv;
|
||
|
||
priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (dialog));
|
||
|
||
/* Act only on response IDs we recognize */
|
||
if (is_stock_accept_response_id (response_id)
|
||
&& !priv->response_requested
|
||
&& !_gtk_file_chooser_embed_should_respond (GTK_FILE_CHOOSER_EMBED (priv->widget)))
|
||
{
|
||
g_signal_stop_emission_by_name (dialog, "response");
|
||
}
|
||
|
||
priv->response_requested = FALSE;
|
||
}
|
||
|
||
static GtkWidget *
|
||
gtk_file_chooser_dialog_new_valist (const gchar *title,
|
||
GtkWindow *parent,
|
||
GtkFileChooserAction action,
|
||
const gchar *first_button_text,
|
||
va_list varargs)
|
||
{
|
||
GtkWidget *result;
|
||
const char *button_text = first_button_text;
|
||
gint response_id;
|
||
|
||
result = g_object_new (GTK_TYPE_FILE_CHOOSER_DIALOG,
|
||
"title", title,
|
||
"action", action,
|
||
NULL);
|
||
|
||
if (parent)
|
||
gtk_window_set_transient_for (GTK_WINDOW (result), parent);
|
||
|
||
while (button_text)
|
||
{
|
||
response_id = va_arg (varargs, gint);
|
||
gtk_dialog_add_button (GTK_DIALOG (result), button_text, response_id);
|
||
button_text = va_arg (varargs, const gchar *);
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
/**
|
||
* gtk_file_chooser_dialog_new:
|
||
* @title: (allow-none): Title of the dialog, or %NULL
|
||
* @parent: (allow-none): Transient parent of the dialog, or %NULL
|
||
* @action: Open or save mode for the dialog
|
||
* @first_button_text: (allow-none): stock ID or text to go in the first button, or %NULL
|
||
* @...: response ID for the first button, then additional (button, id) pairs, ending with %NULL
|
||
*
|
||
* Creates a new #GtkFileChooserDialog. This function is analogous to
|
||
* gtk_dialog_new_with_buttons().
|
||
*
|
||
* Returns: a new #GtkFileChooserDialog
|
||
*
|
||
* Since: 2.4
|
||
**/
|
||
GtkWidget *
|
||
gtk_file_chooser_dialog_new (const gchar *title,
|
||
GtkWindow *parent,
|
||
GtkFileChooserAction action,
|
||
const gchar *first_button_text,
|
||
...)
|
||
{
|
||
GtkWidget *result;
|
||
va_list varargs;
|
||
|
||
va_start (varargs, first_button_text);
|
||
result = gtk_file_chooser_dialog_new_valist (title, parent, action,
|
||
first_button_text,
|
||
varargs);
|
||
va_end (varargs);
|
||
|
||
return result;
|
||
}
|