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![A. Walton](/assets/img/avatar_default.png)
2008-05-21 A. Walton <awalton@gnome.org> * */*.[ch]: Move all of Nautilus to single Gtk+ includes, because Mitch says so. Closes Bug #530315. svn path=/trunk/; revision=14182
648 lines
18 KiB
C
648 lines
18 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
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/* nautilus-clipboard.c
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*
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* Nautilus Clipboard support. For now, routines to support component cut
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* and paste.
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*
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* Copyright (C) 1999, 2000 Free Software Foundaton
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* Copyright (C) 2000, 2001 Eazel, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors: Rebecca Schulman <rebecka@eazel.com>,
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* Darin Adler <darin@bentspoon.com>
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*/
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#include <config.h>
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#include "nautilus-clipboard.h"
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#include "nautilus-file-utilities.h"
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#include <glib/gi18n.h>
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#include <gtk/gtk.h>
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#include <eel/eel-glib-extensions.h>
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#include <string.h>
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typedef struct _TargetCallbackData TargetCallbackData;
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typedef void (* SelectAllCallback) (gpointer target);
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typedef void (* ConnectCallbacksFunc) (GObject *object,
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TargetCallbackData *target_data);
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static void selection_changed_callback (GtkWidget *widget,
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gpointer callback_data);
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static void owner_change_callback (GtkClipboard *clipboard,
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GdkEventOwnerChange *event,
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gpointer callback_data);
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struct _TargetCallbackData {
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GtkUIManager *ui_manager;
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GtkActionGroup *action_group;
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gboolean shares_selection_changes;
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SelectAllCallback select_all_callback;
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ConnectCallbacksFunc connect_callbacks;
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ConnectCallbacksFunc disconnect_callbacks;
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};
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static void
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cut_callback (gpointer target)
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{
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g_assert (target != NULL);
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g_signal_emit_by_name (target, "cut-clipboard");
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}
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static void
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copy_callback (gpointer target)
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{
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g_assert (target != NULL);
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g_signal_emit_by_name (target, "copy-clipboard");
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}
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static void
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paste_callback (gpointer target)
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{
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g_assert (target != NULL);
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g_signal_emit_by_name (target, "paste-clipboard");
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}
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static void
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editable_select_all_callback (gpointer target)
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{
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GtkEditable *editable;
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editable = GTK_EDITABLE (target);
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g_assert (editable != NULL);
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gtk_editable_set_position (editable, -1);
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gtk_editable_select_region (editable, 0, -1);
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}
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static void
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text_view_select_all_callback (gpointer target)
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{
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g_assert (GTK_IS_TEXT_VIEW (target));
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g_signal_emit_by_name (target, "select-all", TRUE);
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}
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static void
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action_cut_callback (GtkAction *action,
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gpointer callback_data)
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{
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cut_callback (callback_data);
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}
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static void
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action_copy_callback (GtkAction *action,
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gpointer callback_data)
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{
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copy_callback (callback_data);
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}
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static void
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action_paste_callback (GtkAction *action,
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gpointer callback_data)
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{
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paste_callback (callback_data);
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}
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static void
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action_select_all_callback (GtkAction *action,
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gpointer callback_data)
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{
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TargetCallbackData *target_data;
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g_assert (callback_data != NULL);
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target_data = g_object_get_data (callback_data, "Nautilus:clipboard_target_data");
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g_assert (target_data != NULL);
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target_data->select_all_callback (callback_data);
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}
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static void
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received_clipboard_contents (GtkClipboard *clipboard,
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GtkSelectionData *selection_data,
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gpointer data)
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{
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GtkActionGroup *action_group;
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GtkAction *action;
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action_group = data;
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action = gtk_action_group_get_action (action_group,
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"Paste");
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if (action != NULL) {
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gtk_action_set_sensitive (action,
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gtk_selection_data_targets_include_text (selection_data));
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}
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g_object_unref (action_group);
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}
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static void
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set_paste_sensitive_if_clipboard_contains_data (GtkActionGroup *action_group)
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{
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GtkAction *action;
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if (gdk_display_supports_selection_notification (gdk_display_get_default ())) {
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gtk_clipboard_request_contents (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
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gdk_atom_intern ("TARGETS", FALSE),
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received_clipboard_contents,
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g_object_ref (action_group));
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} else {
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/* If selection notification isn't supported, always activate Paste */
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action = gtk_action_group_get_action (action_group,
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"Paste");
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gtk_action_set_sensitive (action, TRUE);
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}
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}
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static void
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set_clipboard_menu_items_sensitive (GtkActionGroup *action_group)
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{
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GtkAction *action;
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action = gtk_action_group_get_action (action_group,
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"Cut");
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gtk_action_set_sensitive (action, TRUE);
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action = gtk_action_group_get_action (action_group,
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"Copy");
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gtk_action_set_sensitive (action, TRUE);
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}
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static void
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set_clipboard_menu_items_insensitive (GtkActionGroup *action_group)
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{
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GtkAction *action;
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action = gtk_action_group_get_action (action_group,
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"Cut");
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gtk_action_set_sensitive (action, FALSE);
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action = gtk_action_group_get_action (action_group,
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"Copy");
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gtk_action_set_sensitive (action, FALSE);
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}
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static gboolean
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clipboard_items_are_merged_in (GtkWidget *widget)
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{
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return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
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"Nautilus:clipboard_menu_items_merged"));
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}
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static void
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set_clipboard_items_are_merged_in (GObject *widget_as_object,
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gboolean merged_in)
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{
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g_object_set_data (widget_as_object,
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"Nautilus:clipboard_menu_items_merged",
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GINT_TO_POINTER (merged_in));
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}
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static void
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editable_connect_callbacks (GObject *object,
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TargetCallbackData *target_data)
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{
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g_signal_connect_after (object, "selection_changed",
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G_CALLBACK (selection_changed_callback), target_data);
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selection_changed_callback (GTK_WIDGET (object),
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target_data);
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}
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static void
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editable_disconnect_callbacks (GObject *object,
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TargetCallbackData *target_data)
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{
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g_signal_handlers_disconnect_matched (object,
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G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
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0, 0, NULL,
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G_CALLBACK (selection_changed_callback),
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target_data);
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}
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static void
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text_buffer_update_sensitivity (GtkTextBuffer *buffer,
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TargetCallbackData *target_data)
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{
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g_assert (GTK_IS_TEXT_BUFFER (buffer));
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g_assert (target_data != NULL);
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if (gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL)) {
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set_clipboard_menu_items_sensitive (target_data->action_group);
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} else {
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set_clipboard_menu_items_insensitive (target_data->action_group);
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}
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}
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static void
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text_buffer_delete_range (GtkTextBuffer *buffer,
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GtkTextIter *iter1,
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GtkTextIter *iter2,
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TargetCallbackData *target_data)
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{
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text_buffer_update_sensitivity (buffer, target_data);
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}
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static void
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text_buffer_mark_set (GtkTextBuffer *buffer,
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GtkTextIter *iter,
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GtkTextMark *mark,
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TargetCallbackData *target_data)
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{
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/* anonymous marks with NULL names refer to cursor moves */
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if (gtk_text_mark_get_name (mark) != NULL) {
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text_buffer_update_sensitivity (buffer, target_data);
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}
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}
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static void
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text_view_connect_callbacks (GObject *object,
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TargetCallbackData *target_data)
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{
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GtkTextBuffer *buffer;
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (object));
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g_assert (buffer);
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g_signal_connect_after (buffer, "mark-set",
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G_CALLBACK (text_buffer_mark_set), target_data);
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g_signal_connect_after (buffer, "delete-range",
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G_CALLBACK (text_buffer_delete_range), target_data);
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text_buffer_update_sensitivity (buffer, target_data);
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}
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static void
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text_view_disconnect_callbacks (GObject *object,
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TargetCallbackData *target_data)
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{
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GtkTextBuffer *buffer;
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buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (object));
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g_assert (buffer);
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g_signal_handlers_disconnect_matched (buffer,
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G_SIGNAL_MATCH_DATA,
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0, 0, NULL, NULL,
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target_data);
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}
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static void
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merge_in_clipboard_menu_items (GObject *widget_as_object,
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TargetCallbackData *target_data)
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{
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gboolean add_selection_callback;
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g_assert (target_data != NULL);
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add_selection_callback = target_data->shares_selection_changes;
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gtk_ui_manager_insert_action_group (target_data->ui_manager,
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target_data->action_group, 0);
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set_paste_sensitive_if_clipboard_contains_data (target_data->action_group);
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g_signal_connect (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD), "owner_change",
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G_CALLBACK (owner_change_callback), target_data);
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if (add_selection_callback) {
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target_data->connect_callbacks (widget_as_object, target_data);
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} else {
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/* If we don't use sensitivity, everything should be on */
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set_clipboard_menu_items_sensitive (target_data->action_group);
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}
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set_clipboard_items_are_merged_in (widget_as_object, TRUE);
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}
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static void
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merge_out_clipboard_menu_items (GObject *widget_as_object,
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TargetCallbackData *target_data)
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{
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gboolean selection_callback_was_added;
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g_assert (target_data != NULL);
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gtk_ui_manager_remove_action_group (target_data->ui_manager,
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target_data->action_group);
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g_signal_handlers_disconnect_matched (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
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G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA,
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0, 0, NULL,
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G_CALLBACK (owner_change_callback),
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target_data);
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selection_callback_was_added = target_data->shares_selection_changes;
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if (selection_callback_was_added) {
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target_data->disconnect_callbacks (widget_as_object, target_data);
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}
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set_clipboard_items_are_merged_in (widget_as_object, FALSE);
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}
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static gboolean
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focus_changed_callback (GtkWidget *widget,
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GdkEventAny *event,
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gpointer callback_data)
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{
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/* Connect the component to the container if the widget has focus. */
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if (GTK_WIDGET_HAS_FOCUS (widget)) {
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if (!clipboard_items_are_merged_in (widget)) {
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merge_in_clipboard_menu_items (G_OBJECT (widget), callback_data);
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}
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} else {
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if (clipboard_items_are_merged_in (widget)) {
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merge_out_clipboard_menu_items (G_OBJECT (widget), callback_data);
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}
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}
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return FALSE;
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}
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static void
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selection_changed_callback (GtkWidget *widget,
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gpointer callback_data)
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{
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TargetCallbackData *target_data;
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GtkEditable *editable;
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int start, end;
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target_data = (TargetCallbackData *) callback_data;
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g_assert (target_data != NULL);
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editable = GTK_EDITABLE (widget);
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g_assert (editable != NULL);
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if (gtk_editable_get_selection_bounds (editable, &start, &end) && start != end) {
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set_clipboard_menu_items_sensitive (target_data->action_group);
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} else {
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set_clipboard_menu_items_insensitive (target_data->action_group);
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}
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}
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static void
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owner_change_callback (GtkClipboard *clipboard,
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GdkEventOwnerChange *event,
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gpointer callback_data)
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{
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TargetCallbackData *target_data;
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g_assert (callback_data != NULL);
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target_data = callback_data;
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set_paste_sensitive_if_clipboard_contains_data (target_data->action_group);
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}
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static void
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target_destroy_callback (GtkObject *object,
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gpointer callback_data)
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{
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TargetCallbackData *target_data;
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g_assert (callback_data != NULL);
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target_data = callback_data;
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if (clipboard_items_are_merged_in (GTK_WIDGET(object))) {
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merge_out_clipboard_menu_items (G_OBJECT (object), callback_data);
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}
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}
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static void
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target_data_free (TargetCallbackData *target_data)
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{
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g_object_unref (target_data->action_group);
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g_free (target_data);
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}
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static const GtkActionEntry clipboard_entries[] = {
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/* name, stock id */ { "Cut", GTK_STOCK_CUT,
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/* label, accelerator */ NULL, NULL,
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/* tooltip */ N_("Cut the selected text to the clipboard"),
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G_CALLBACK (action_cut_callback) },
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/* name, stock id */ { "Copy", GTK_STOCK_COPY,
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/* label, accelerator */ NULL, NULL,
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/* tooltip */ N_("Copy the selected text to the clipboard"),
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G_CALLBACK (action_copy_callback) },
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/* name, stock id */ { "Paste", GTK_STOCK_PASTE,
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/* label, accelerator */ NULL, NULL,
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/* tooltip */ N_("Paste the text stored on the clipboard"),
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G_CALLBACK (action_paste_callback) },
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/* name, stock id */ { "Select All", NULL,
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/* label, accelerator */ N_("Select _All"), "<control>A",
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/* tooltip */ N_("Select all the text in a text field"),
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G_CALLBACK (action_select_all_callback) },
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};
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static TargetCallbackData *
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initialize_clipboard_component_with_callback_data (GtkEditable *target,
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GtkUIManager *ui_manager,
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gboolean shares_selection_changes,
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SelectAllCallback select_all_callback,
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ConnectCallbacksFunc connect_callbacks,
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ConnectCallbacksFunc disconnect_callbacks)
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{
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GtkActionGroup *action_group;
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TargetCallbackData *target_data;
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action_group = gtk_action_group_new ("ClipboardActions");
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gtk_action_group_set_translation_domain (action_group, GETTEXT_PACKAGE);
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gtk_action_group_add_actions (action_group,
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clipboard_entries, G_N_ELEMENTS (clipboard_entries),
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target);
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/* Do the actual connection of the UI to the container at
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* focus time, and disconnect at both focus and destroy
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* time.
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*/
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target_data = g_new (TargetCallbackData, 1);
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target_data->ui_manager = ui_manager;
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target_data->action_group = action_group;
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target_data->shares_selection_changes = shares_selection_changes;
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target_data->select_all_callback = select_all_callback;
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target_data->connect_callbacks = connect_callbacks;
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target_data->disconnect_callbacks = disconnect_callbacks;
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return target_data;
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}
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static void
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nautilus_clipboard_real_set_up (gpointer target,
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GtkUIManager *ui_manager,
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gboolean shares_selection_changes,
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SelectAllCallback select_all_callback,
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ConnectCallbacksFunc connect_callbacks,
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ConnectCallbacksFunc disconnect_callbacks)
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{
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TargetCallbackData *target_data;
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if (g_object_get_data (G_OBJECT (target), "Nautilus:clipboard_target_data") != NULL) {
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return;
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}
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target_data = initialize_clipboard_component_with_callback_data
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(target,
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ui_manager,
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shares_selection_changes,
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select_all_callback,
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connect_callbacks,
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disconnect_callbacks);
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g_signal_connect (target, "focus_in_event",
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G_CALLBACK (focus_changed_callback), target_data);
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g_signal_connect (target, "focus_out_event",
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G_CALLBACK (focus_changed_callback), target_data);
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g_signal_connect (target, "destroy",
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G_CALLBACK (target_destroy_callback), target_data);
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g_object_set_data_full (G_OBJECT (target), "Nautilus:clipboard_target_data",
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target_data, (GDestroyNotify) target_data_free);
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/* Call the focus changed callback once to merge if the window is
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* already in focus.
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*/
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focus_changed_callback (GTK_WIDGET (target), NULL, target_data);
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}
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void
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nautilus_clipboard_set_up_editable (GtkEditable *target,
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GtkUIManager *ui_manager,
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gboolean shares_selection_changes)
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{
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g_return_if_fail (GTK_IS_EDITABLE (target));
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g_return_if_fail (GTK_IS_UI_MANAGER (ui_manager));
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nautilus_clipboard_real_set_up (target, ui_manager,
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shares_selection_changes,
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editable_select_all_callback,
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editable_connect_callbacks,
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editable_disconnect_callbacks);
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}
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void
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nautilus_clipboard_set_up_text_view (GtkTextView *target,
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GtkUIManager *ui_manager)
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{
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g_return_if_fail (GTK_IS_TEXT_VIEW (target));
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g_return_if_fail (GTK_IS_UI_MANAGER (ui_manager));
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nautilus_clipboard_real_set_up (target, ui_manager, TRUE,
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text_view_select_all_callback,
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text_view_connect_callbacks,
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text_view_disconnect_callbacks);
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}
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static GList *
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convert_lines_to_str_list (char **lines, gboolean *cut)
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{
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int i;
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GList *result;
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if (cut) {
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*cut = FALSE;
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}
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if (lines[0] == NULL) {
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return NULL;
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}
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if (strcmp (lines[0], "cut") == 0) {
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if (cut) {
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*cut = TRUE;
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}
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} else if (strcmp (lines[0], "copy") != 0) {
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return NULL;
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}
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result = NULL;
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for (i = 1; lines[i] != NULL; i++) {
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result = g_list_prepend (result, g_strdup (lines[i]));
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}
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return g_list_reverse (result);
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}
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GList*
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nautilus_clipboard_get_uri_list_from_selection_data (GtkSelectionData *selection_data,
|
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gboolean *cut,
|
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GdkAtom copied_files_atom)
|
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{
|
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GList *items;
|
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char **lines;
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|
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if (selection_data->type != copied_files_atom
|
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|| selection_data->length <= 0) {
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items = NULL;
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} else {
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/* Not sure why it's legal to assume there's an extra byte
|
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* past the end of the selection data that it's safe to write
|
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* to. But gtk_editable_selection_received does this, so I
|
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* think it is OK.
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*/
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selection_data->data[selection_data->length] = '\0';
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lines = g_strsplit (selection_data->data, "\n", 0);
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items = convert_lines_to_str_list (lines, cut);
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g_strfreev (lines);
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}
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return items;
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}
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|
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GtkClipboard *
|
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nautilus_clipboard_get (GtkWidget *widget)
|
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{
|
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return gtk_clipboard_get_for_display (gtk_widget_get_display (GTK_WIDGET (widget)),
|
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GDK_SELECTION_CLIPBOARD);
|
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}
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void
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nautilus_clipboard_clear_if_colliding_uris (GtkWidget *widget,
|
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const GList *item_uris,
|
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GdkAtom copied_files_atom)
|
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{
|
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GtkSelectionData *data;
|
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GList *clipboard_item_uris, *l;
|
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gboolean collision;
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|
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collision = FALSE;
|
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data = gtk_clipboard_wait_for_contents (nautilus_clipboard_get (widget),
|
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copied_files_atom);
|
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if (data == NULL) {
|
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return;
|
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}
|
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|
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clipboard_item_uris = nautilus_clipboard_get_uri_list_from_selection_data (data, NULL,
|
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copied_files_atom);
|
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|
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for (l = (GList *) item_uris; l; l = l->next) {
|
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if (g_list_find_custom ((GList *) item_uris, l->data,
|
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(GCompareFunc) g_strcmp0)) {
|
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collision = TRUE;
|
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break;
|
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}
|
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}
|
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|
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if (collision) {
|
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gtk_clipboard_clear (nautilus_clipboard_get (widget));
|
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}
|
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|
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if (clipboard_item_uris) {
|
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eel_g_list_free_deep (clipboard_item_uris);
|
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}
|
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}
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