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-rw-r--r--libcaja-private/caja-undo-signal-handlers.c345
1 files changed, 0 insertions, 345 deletions
diff --git a/libcaja-private/caja-undo-signal-handlers.c b/libcaja-private/caja-undo-signal-handlers.c
deleted file mode 100644
index f1dfba3c..00000000
--- a/libcaja-private/caja-undo-signal-handlers.c
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@@ -1,345 +0,0 @@
-/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
-
-/* Signal handlers to enable undo in Gtk Widgets.
- *
- * Copyright (C) 2000 Eazel, Inc.
- *
- * Author: Gene Z. Ragan <[email protected]>
- *
- * 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, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-
-#include <config.h>
-#include <gtk/gtk.h>
-
-#include <glib/gi18n.h>
-#include <libcaja-private/caja-undo.h>
-
-#include <eel/eel-gtk-macros.h>
-#include <string.h>
-
-#include "caja-undo-signal-handlers.h"
-
-
-typedef struct
-{
- char *undo_text;
- gint position;
- guint selection_start;
- guint selection_end;
-} EditableUndoData;
-
-typedef struct
-{
- gboolean undo_registered;
-} EditableUndoObjectData;
-
-
-static void restore_editable_from_undo_snapshot_callback (GObject *target,
- gpointer callback_data);
-static void editable_register_edit_undo (GtkEditable *editable);
-static void free_editable_object_data (gpointer data);
-
-/* caja_undo_set_up_caja_entry_for_undo
- *
- * Functions and callback methods to handle undo
- * in a CajaEntry
- */
-
-static void
-caja_entry_user_changed_callback (CajaEntry *entry)
-{
- /* Register undo transaction */
- editable_register_edit_undo (GTK_EDITABLE (entry));
-}
-
-void
-caja_undo_set_up_caja_entry_for_undo (CajaEntry *entry)
-{
- EditableUndoObjectData *data;
-
- if (!CAJA_IS_ENTRY (entry) )
- {
- return;
- }
-
- data = g_new(EditableUndoObjectData, 1);
- data->undo_registered = FALSE;
- g_object_set_data_full (G_OBJECT (entry), "undo_registered",
- data, free_editable_object_data);
-
- /* Connect to entry signals */
- g_signal_connect (entry, "user_changed",
- G_CALLBACK (caja_entry_user_changed_callback),
- NULL);
-}
-
-void
-caja_undo_tear_down_caja_entry_for_undo (CajaEntry *entry)
-{
- if (!CAJA_IS_ENTRY (entry) )
- {
- return;
- }
-
- /* Disconnect from entry signals */
- g_signal_handlers_disconnect_by_func
- (entry, G_CALLBACK (caja_entry_user_changed_callback), NULL);
-
-}
-
-/* caja_undo_set_up_caja_entry_for_undo
- *
- * Functions and callback methods to handle undo
- * in a CajaEntry
- */
-
-static void
-free_editable_undo_data (gpointer data)
-{
- EditableUndoData *undo_data;
-
- undo_data = (EditableUndoData *) data;
-
- g_free (undo_data->undo_text);
- g_free (undo_data);
-}
-
-static void
-free_editable_object_data (gpointer data)
-{
- g_free (data);
-}
-
-
-static void
-editable_insert_text_callback (GtkEditable *editable)
-{
- /* Register undo transaction */
- editable_register_edit_undo (editable);
-}
-
-static void
-editable_delete_text_callback (GtkEditable *editable)
-{
- /* Register undo transaction */
- editable_register_edit_undo (editable);
-}
-
-static void
-editable_register_edit_undo (GtkEditable *editable)
-{
- EditableUndoData *undo_data;
- EditableUndoObjectData *undo_info;
- gpointer data;
-
- if (!GTK_IS_EDITABLE (editable) )
- {
- return;
- }
-
- /* Check our undo registered flag */
- data = g_object_get_data (G_OBJECT (editable), "undo_registered");
- if (data == NULL)
- {
- g_warning ("Undo data is NULL");
- return;
- }
-
- undo_info = (EditableUndoObjectData *)data;
- if (undo_info->undo_registered)
- {
- return;
- }
-
- undo_data = g_new0 (EditableUndoData, 1);
- undo_data->undo_text = gtk_editable_get_chars (editable, 0, -1);
- undo_data->position = gtk_editable_get_position (editable);
- gtk_editable_get_selection_bounds (editable,
- &undo_data->selection_start,
- &undo_data->selection_end);
-
- caja_undo_register
- (G_OBJECT (editable),
- restore_editable_from_undo_snapshot_callback,
- undo_data,
- (GDestroyNotify) free_editable_undo_data,
- _("Edit"),
- _("Undo Edit"),
- _("Undo the edit"),
- _("Redo Edit"),
- _("Redo the edit"));
-
- undo_info->undo_registered = TRUE;
-}
-
-void
-caja_undo_set_up_editable_for_undo (GtkEditable *editable)
-{
- EditableUndoObjectData *data;
-
- if (!GTK_IS_EDITABLE (editable) )
- {
- return;
- }
-
- /* Connect to editable signals */
- g_signal_connect (editable, "insert_text",
- G_CALLBACK (editable_insert_text_callback), NULL);
- g_signal_connect (editable, "delete_text",
- G_CALLBACK (editable_delete_text_callback), NULL);
-
-
- data = g_new (EditableUndoObjectData, 1);
- data->undo_registered = FALSE;
- g_object_set_data_full (G_OBJECT (editable), "undo_registered",
- data, free_editable_object_data);
-}
-
-void
-caja_undo_tear_down_editable_for_undo (GtkEditable *editable)
-{
- if (!GTK_IS_EDITABLE (editable) )
- {
- return;
- }
-
- /* Disconnect from entry signals */
- g_signal_handlers_disconnect_by_func
- (editable, G_CALLBACK (editable_insert_text_callback), NULL);
- g_signal_handlers_disconnect_by_func
- (editable, G_CALLBACK (editable_delete_text_callback), NULL);
-}
-
-/* restore_editable_from_undo_snapshot_callback
- *
- * Restore edited text.
- */
-static void
-restore_editable_from_undo_snapshot_callback (GObject *target, gpointer callback_data)
-{
- GtkEditable *editable;
- GtkWindow *window;
- EditableUndoData *undo_data;
- EditableUndoObjectData *data;
- gint position;
-
- editable = GTK_EDITABLE (target);
- undo_data = (EditableUndoData *) callback_data;
-
- /* Check our undo registered flag */
- data = g_object_get_data (target, "undo_registered");
- if (data == NULL)
- {
- g_warning ("Undo regisetred flag not found");
- return;
- }
-
- /* Reset the registered flag so we get a new item for future editing. */
- data->undo_registered = FALSE;
-
- /* Register a new undo transaction for redo. */
- editable_register_edit_undo (editable);
-
- /* Restore the text. */
- position = 0;
- gtk_editable_delete_text (editable, 0, -1);
- gtk_editable_insert_text (editable, undo_data->undo_text,
- strlen (undo_data->undo_text), &position);
-
- /* Set focus to widget */
- window = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (target)));
- gtk_window_set_focus (window, GTK_WIDGET (editable));
-
- /* We have to do this call, because the previous call selects all text */
- gtk_editable_select_region (editable, 0, 0);
-
- /* Restore selection */
- gtk_editable_select_region (editable, undo_data->selection_start,
- undo_data->selection_end);
-
- /* Set the i-beam to the saved position */
- gtk_editable_set_position (editable, undo_data->position);
-
- /* Reset the registered flag so we get a new item for future editing. */
- data->undo_registered = FALSE;
-}
-
-
-/* editable_set_undo_key
- *
- * Allow the use of ctrl-z from within widget.
- */
-
-/* Undo is disabled until we have a better implementation.
- * Both here and in caja-shell-ui.xml.
- */
-
-/* FIXME bugzilla.gnome.org 43515: Undo doesn't work */
-#ifdef UNDO_ENABLED
-
-static gboolean
-editable_key_press_event (GtkEditable *editable, GdkEventKey *event, gpointer user_data)
-{
- switch (event->keyval)
- {
- /* Undo */
- case 'z':
- if ((event->state & GDK_CONTROL_MASK) != 0)
- {
- caja_undo (GTK_OBJECT (editable));
- return TRUE;
- }
- break;
-
- default:
- break;
- }
-
- return FALSE;
-}
-
-#endif
-
-/* editable_set_undo_key
- *
- * Allow the use of ctrl-z from within widget. This should only be
- * set if there is no menu bar to use to undo the widget.
- */
-
-void
-caja_undo_editable_set_undo_key (GtkEditable *editable, gboolean value)
-{
- /* FIXME bugzilla.gnome.org 43515: Undo doesn't work */
-#ifdef UNDO_ENABLED
- if (value)
- {
- /* Connect to entry signals */
- g_signal_connect (editable, "key_press_event",
- G_CALLBACK (editable_key_press_event), NULL);
- }
- else
- {
- /* FIXME bugzilla.gnome.org 45092: Warns if the handler
- * is not already connected. We could use object data
- * to prevent that little problem.
- */
- g_signal_disconnect_by_func (editable,
- G_CALLBACK (editable_key_press_event), NULL);
- }
-#endif
-}
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