/*
* e-focus-tracker.c
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation.
*
* This program 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 General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include "evolution-config.h"
#include "e-focus-tracker.h"
#include <glib/gi18n-lib.h>
#include "e-selectable.h"
#include "e-widget-undo.h"
#include "e-content-editor.h"
#define E_FOCUS_TRACKER_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_FOCUS_TRACKER, EFocusTrackerPrivate))
struct _EFocusTrackerPrivate {
GtkWidget *focus; /* not referenced */
GtkWindow *window;
GtkAction *cut_clipboard;
GtkAction *copy_clipboard;
GtkAction *paste_clipboard;
GtkAction *delete_selection;
GtkAction *select_all;
GtkAction *undo;
GtkAction *redo;
};
enum {
PROP_0,
PROP_FOCUS,
PROP_WINDOW,
PROP_CUT_CLIPBOARD_ACTION,
PROP_COPY_CLIPBOARD_ACTION,
PROP_PASTE_CLIPBOARD_ACTION,
PROP_DELETE_SELECTION_ACTION,
PROP_SELECT_ALL_ACTION,
PROP_UNDO_ACTION,
PROP_REDO_ACTION
};
G_DEFINE_TYPE (
EFocusTracker,
e_focus_tracker,
G_TYPE_OBJECT)
static void
focus_tracker_disable_actions (EFocusTracker *focus_tracker)
{
GtkAction *action;
action = e_focus_tracker_get_cut_clipboard_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_copy_clipboard_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_paste_clipboard_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_delete_selection_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_select_all_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_undo_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_redo_action (focus_tracker);
if (action != NULL)
gtk_action_set_sensitive (action, FALSE);
}
static void
focus_tracker_update_undo_redo (EFocusTracker *focus_tracker,
GtkWidget *widget,
gboolean can_edit_text)
{
GtkAction *action;
gboolean sensitive;
action = e_focus_tracker_get_undo_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && widget && e_widget_undo_has_undo (widget);
gtk_action_set_sensitive (action, sensitive);
if (sensitive) {
gchar *description;
description = e_widget_undo_describe_undo (widget);
gtk_action_set_tooltip (action, description);
g_free (description);
} else {
gtk_action_set_tooltip (action, _("Undo"));
}
}
action = e_focus_tracker_get_redo_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && widget && e_widget_undo_has_redo (widget);
gtk_action_set_sensitive (action, sensitive);
if (sensitive) {
gchar *description;
description = e_widget_undo_describe_redo (widget);
gtk_action_set_tooltip (action, description);
g_free (description);
} else {
gtk_action_set_tooltip (action, _("Redo"));
}
}
}
static void
focus_tracker_editable_update_actions (EFocusTracker *focus_tracker,
GtkEditable *editable,
GdkAtom *targets,
gint n_targets)
{
GtkAction *action;
gboolean can_edit_text;
gboolean clipboard_has_text;
gboolean text_is_selected;
gboolean sensitive;
can_edit_text =
gtk_editable_get_editable (editable);
clipboard_has_text = (targets != NULL) &&
gtk_targets_include_text (targets, n_targets);
text_is_selected =
gtk_editable_get_selection_bounds (editable, NULL, NULL);
action = e_focus_tracker_get_cut_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Cut the selection"));
}
action = e_focus_tracker_get_copy_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Copy the selection"));
}
action = e_focus_tracker_get_paste_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && clipboard_has_text;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Paste the clipboard"));
}
action = e_focus_tracker_get_delete_selection_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Delete the selection"));
}
action = e_focus_tracker_get_select_all_action (focus_tracker);
if (action != NULL) {
sensitive = TRUE; /* always enabled */
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Select all text"));
}
focus_tracker_update_undo_redo (focus_tracker, GTK_WIDGET (editable), can_edit_text);
}
static void
focus_tracker_text_view_update_actions (EFocusTracker *focus_tracker,
GtkTextView *text_view,
GdkAtom *targets,
gint n_targets)
{
GtkAction *action;
GtkTextBuffer *buffer;
gboolean can_edit_text;
gboolean clipboard_has_text;
gboolean text_is_selected;
gboolean sensitive;
buffer = gtk_text_view_get_buffer (text_view);
can_edit_text = gtk_text_view_get_editable (text_view);
clipboard_has_text = (targets != NULL) && gtk_targets_include_text (targets, n_targets);
text_is_selected = gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL);
action = e_focus_tracker_get_cut_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Cut the selection"));
}
action = e_focus_tracker_get_copy_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Copy the selection"));
}
action = e_focus_tracker_get_paste_clipboard_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && clipboard_has_text;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Paste the clipboard"));
}
action = e_focus_tracker_get_delete_selection_action (focus_tracker);
if (action != NULL) {
sensitive = can_edit_text && text_is_selected;
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Delete the selection"));
}
action = e_focus_tracker_get_select_all_action (focus_tracker);
if (action != NULL) {
sensitive = TRUE; /* always enabled */
gtk_action_set_sensitive (action, sensitive);
gtk_action_set_tooltip (action, _("Select all text"));
}
focus_tracker_update_undo_redo (focus_tracker, GTK_WIDGET (text_view), can_edit_text);
}
static void
focus_tracker_editor_update_actions (EFocusTracker *focus_tracker,
EContentEditor *cnt_editor,
GdkAtom *targets,
gint n_targets)
{
GtkAction *action;
gboolean can_copy;
gboolean can_cut;
gboolean can_paste;
g_object_get (cnt_editor,
"can-copy", &can_copy,
"can-cut", &can_cut,
"can-paste", &can_paste,
NULL);
action = e_focus_tracker_get_cut_clipboard_action (focus_tracker);
if (action != NULL) {
gtk_action_set_sensitive (action, can_cut);
gtk_action_set_tooltip (action, _("Cut the selection"));
}
action = e_focus_tracker_get_copy_clipboard_action (focus_tracker);
if (action != NULL) {
gtk_action_set_sensitive (action, can_copy);
gtk_action_set_tooltip (action, _("Copy the selection"));
}
action = e_focus_tracker_get_paste_clipboard_action (focus_tracker);
if (action != NULL) {
gtk_action_set_sensitive (action, can_paste);
gtk_action_set_tooltip (action, _("Paste the clipboard"));
}
}
static void
focus_tracker_selectable_update_actions (EFocusTracker *focus_tracker,
ESelectable *selectable,
GdkAtom *targets,
gint n_targets)
{
ESelectableInterface *iface;
GtkAction *action;
iface = E_SELECTABLE_GET_INTERFACE (selectable);
e_selectable_update_actions (
selectable, focus_tracker, targets, n_targets);
/* Disable actions for which the corresponding method is not
* implemented. This allows update_actions() implementations
* to simply skip the actions they don't support, which in turn
* allows us to add new actions without disturbing the existing
* ESelectable implementations. */
action = e_focus_tracker_get_cut_clipboard_action (focus_tracker);
if (action != NULL && iface->cut_clipboard == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_copy_clipboard_action (focus_tracker);
if (action != NULL && iface->copy_clipboard == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_paste_clipboard_action (focus_tracker);
if (action != NULL && iface->paste_clipboard == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_delete_selection_action (focus_tracker);
if (action != NULL && iface->delete_selection == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_select_all_action (focus_tracker);
if (action != NULL && iface->select_all == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_undo_action (focus_tracker);
if (action != NULL && iface->undo == NULL)
gtk_action_set_sensitive (action, FALSE);
action = e_focus_tracker_get_redo_action (focus_tracker);
if (action != NULL && iface->redo == NULL)
gtk_action_set_sensitive (action, FALSE);
}
static void
focus_tracker_targets_received_cb (GtkClipboard *clipboard,
GdkAtom *targets,
gint n_targets,
EFocusTracker *focus_tracker)
{
GtkWidget *focus;
focus = e_focus_tracker_get_focus (focus_tracker);
if (focus == NULL)
focus_tracker_disable_actions (focus_tracker);
else if (E_IS_SELECTABLE (focus))
focus_tracker_selectable_update_actions (
focus_tracker, E_SELECTABLE (focus),
targets, n_targets);
else if (GTK_IS_EDITABLE (focus))
focus_tracker_editable_update_actions (
focus_tracker, GTK_EDITABLE (focus),
targets, n_targets);
else if (GTK_IS_TEXT_VIEW (focus))
focus_tracker_text_view_update_actions (
focus_tracker, GTK_TEXT_VIEW (focus),
targets, n_targets);
else if (E_IS_CONTENT_EDITOR (focus))
focus_tracker_editor_update_actions (
focus_tracker, E_CONTENT_EDITOR (focus),
targets, n_targets);
g_object_unref (focus_tracker);
}
static void
focus_tracker_set_focus_cb (GtkWindow *window,
GtkWidget *focus,
EFocusTracker *focus_tracker)
{
while (focus != NULL) {
if (E_IS_SELECTABLE (focus))
break;
if (GTK_IS_EDITABLE (focus))
break;
if (GTK_IS_TEXT_VIEW (focus))
break;
if (E_IS_CONTENT_EDITOR (focus))
break;
focus = gtk_widget_get_parent (focus);
}
if (focus == focus_tracker->priv->focus)
return;
focus_tracker->priv->focus = focus;
g_object_notify (G_OBJECT (focus_tracker), "focus");
e_focus_tracker_update_actions (focus_tracker);
}
static void
focus_tracker_set_window (EFocusTracker *focus_tracker,
GtkWindow *window)
{
g_return_if_fail (GTK_IS_WINDOW (window));
g_return_if_fail (focus_tracker->priv->window == NULL);
focus_tracker->priv->window = g_object_ref (window);
g_signal_connect (
window, "set-focus",
G_CALLBACK (focus_tracker_set_focus_cb), focus_tracker);
}
static void
focus_tracker_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_WINDOW:
focus_tracker_set_window (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_CUT_CLIPBOARD_ACTION:
e_focus_tracker_set_cut_clipboard_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_COPY_CLIPBOARD_ACTION:
e_focus_tracker_set_copy_clipboard_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_PASTE_CLIPBOARD_ACTION:
e_focus_tracker_set_paste_clipboard_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_DELETE_SELECTION_ACTION:
e_focus_tracker_set_delete_selection_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_SELECT_ALL_ACTION:
e_focus_tracker_set_select_all_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_UNDO_ACTION:
e_focus_tracker_set_undo_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
case PROP_REDO_ACTION:
e_focus_tracker_set_redo_action (
E_FOCUS_TRACKER (object),
g_value_get_object (value));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
focus_tracker_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_FOCUS:
g_value_set_object (
value,
e_focus_tracker_get_focus (
E_FOCUS_TRACKER (object)));
return;
case PROP_WINDOW:
g_value_set_object (
value,
e_focus_tracker_get_window (
E_FOCUS_TRACKER (object)));
return;
case PROP_CUT_CLIPBOARD_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_cut_clipboard_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_COPY_CLIPBOARD_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_copy_clipboard_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_PASTE_CLIPBOARD_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_paste_clipboard_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_DELETE_SELECTION_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_delete_selection_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_SELECT_ALL_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_select_all_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_UNDO_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_undo_action (
E_FOCUS_TRACKER (object)));
return;
case PROP_REDO_ACTION:
g_value_set_object (
value,
e_focus_tracker_get_redo_action (
E_FOCUS_TRACKER (object)));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
focus_tracker_dispose (GObject *object)
{
EFocusTrackerPrivate *priv;
priv = E_FOCUS_TRACKER_GET_PRIVATE (object);
g_signal_handlers_disconnect_matched (
gtk_clipboard_get (GDK_SELECTION_PRIMARY),
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, object);
g_signal_handlers_disconnect_matched (
gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, object);
if (priv->window != NULL) {
g_signal_handlers_disconnect_matched (
priv->window, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->window);
priv->window = NULL;
}
if (priv->cut_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
priv->cut_clipboard, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->cut_clipboard);
priv->cut_clipboard = NULL;
}
if (priv->copy_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
priv->copy_clipboard, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->copy_clipboard);
priv->copy_clipboard = NULL;
}
if (priv->paste_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
priv->paste_clipboard, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->paste_clipboard);
priv->paste_clipboard = NULL;
}
if (priv->delete_selection != NULL) {
g_signal_handlers_disconnect_matched (
priv->delete_selection, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->delete_selection);
priv->delete_selection = NULL;
}
if (priv->select_all != NULL) {
g_signal_handlers_disconnect_matched (
priv->select_all, G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL, object);
g_object_unref (priv->select_all);
priv->select_all = NULL;
}
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_focus_tracker_parent_class)->dispose (object);
}
static void
focus_tracker_constructed (GObject *object)
{
GtkClipboard *clipboard;
/* Listen for "owner-change" signals from the primary selection
* clipboard to learn when text selections change in GtkEditable
* widgets. It's a bit of an overkill, but I don't know of any
* other notification mechanism. */
clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
g_signal_connect_swapped (
clipboard, "owner-change",
G_CALLBACK (e_focus_tracker_update_actions), object);
/* Listen for "owner-change" signals from the default clipboard
* so we can update the paste action when the user cuts or copies
* something. This is how GEdit does it. */
clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
g_signal_connect_swapped (
clipboard, "owner-change",
G_CALLBACK (e_focus_tracker_update_actions), object);
/* Chain up to parent's constructed() method. */
G_OBJECT_CLASS (e_focus_tracker_parent_class)->constructed (object);
}
static void
e_focus_tracker_class_init (EFocusTrackerClass *class)
{
GObjectClass *object_class;
g_type_class_add_private (class, sizeof (EFocusTrackerPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = focus_tracker_set_property;
object_class->get_property = focus_tracker_get_property;
object_class->dispose = focus_tracker_dispose;
object_class->constructed = focus_tracker_constructed;
g_object_class_install_property (
object_class,
PROP_FOCUS,
g_param_spec_object (
"focus",
"Focus",
NULL,
GTK_TYPE_WIDGET,
G_PARAM_READABLE));
g_object_class_install_property (
object_class,
PROP_WINDOW,
g_param_spec_object (
"window",
"Window",
NULL,
GTK_TYPE_WINDOW,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (
object_class,
PROP_CUT_CLIPBOARD_ACTION,
g_param_spec_object (
"cut-clipboard-action",
"Cut Clipboard Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_COPY_CLIPBOARD_ACTION,
g_param_spec_object (
"copy-clipboard-action",
"Copy Clipboard Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_PASTE_CLIPBOARD_ACTION,
g_param_spec_object (
"paste-clipboard-action",
"Paste Clipboard Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_DELETE_SELECTION_ACTION,
g_param_spec_object (
"delete-selection-action",
"Delete Selection Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_SELECT_ALL_ACTION,
g_param_spec_object (
"select-all-action",
"Select All Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_UNDO_ACTION,
g_param_spec_object (
"undo-action",
"Undo Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
g_object_class_install_property (
object_class,
PROP_REDO_ACTION,
g_param_spec_object (
"redo-action",
"Redo Action",
NULL,
GTK_TYPE_ACTION,
G_PARAM_READWRITE));
}
static void
e_focus_tracker_init (EFocusTracker *focus_tracker)
{
GtkAction *action;
focus_tracker->priv = E_FOCUS_TRACKER_GET_PRIVATE (focus_tracker);
/* Define dummy actions. These will most likely be overridden,
* but for cases where they're not it ensures ESelectable objects
* will always get a valid GtkAction when they ask us for one. */
action = gtk_action_new (
"cut-clipboard", _("Cu_t"),
_("Cut the selection"), "edit-cut");
focus_tracker->priv->cut_clipboard = action;
action = gtk_action_new (
"copy-clipboard", _("_Copy"),
_("Copy the selection"), "edit-copy");
focus_tracker->priv->copy_clipboard = action;
action = gtk_action_new (
"paste-clipboard", _("_Paste"),
_("Paste the clipboard"), "edit-paste");
focus_tracker->priv->paste_clipboard = action;
action = gtk_action_new (
"delete-selection", _("_Delete"),
_("Delete the selection"), "edit-delete");
focus_tracker->priv->delete_selection = action;
action = gtk_action_new (
"select-all", _("Select _All"),
_("Select all text"), "edit-select-all");
focus_tracker->priv->select_all = action;
}
EFocusTracker *
e_focus_tracker_new (GtkWindow *window)
{
g_return_val_if_fail (GTK_IS_WINDOW (window), NULL);
return g_object_new (E_TYPE_FOCUS_TRACKER, "window", window, NULL);
}
GtkWidget *
e_focus_tracker_get_focus (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->focus;
}
GtkWindow *
e_focus_tracker_get_window (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->window;
}
GtkAction *
e_focus_tracker_get_cut_clipboard_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->cut_clipboard;
}
void
e_focus_tracker_set_cut_clipboard_action (EFocusTracker *focus_tracker,
GtkAction *cut_clipboard)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (cut_clipboard != NULL) {
g_return_if_fail (GTK_IS_ACTION (cut_clipboard));
g_object_ref (cut_clipboard);
}
if (focus_tracker->priv->cut_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->cut_clipboard,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->cut_clipboard);
}
focus_tracker->priv->cut_clipboard = cut_clipboard;
if (cut_clipboard != NULL)
g_signal_connect_swapped (
cut_clipboard, "activate",
G_CALLBACK (e_focus_tracker_cut_clipboard),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "cut-clipboard-action");
}
GtkAction *
e_focus_tracker_get_copy_clipboard_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->copy_clipboard;
}
void
e_focus_tracker_set_copy_clipboard_action (EFocusTracker *focus_tracker,
GtkAction *copy_clipboard)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (copy_clipboard != NULL) {
g_return_if_fail (GTK_IS_ACTION (copy_clipboard));
g_object_ref (copy_clipboard);
}
if (focus_tracker->priv->copy_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->copy_clipboard,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->copy_clipboard);
}
focus_tracker->priv->copy_clipboard = copy_clipboard;
if (copy_clipboard != NULL)
g_signal_connect_swapped (
copy_clipboard, "activate",
G_CALLBACK (e_focus_tracker_copy_clipboard),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "copy-clipboard-action");
}
GtkAction *
e_focus_tracker_get_paste_clipboard_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->paste_clipboard;
}
void
e_focus_tracker_set_paste_clipboard_action (EFocusTracker *focus_tracker,
GtkAction *paste_clipboard)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (paste_clipboard != NULL) {
g_return_if_fail (GTK_IS_ACTION (paste_clipboard));
g_object_ref (paste_clipboard);
}
if (focus_tracker->priv->paste_clipboard != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->paste_clipboard,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->paste_clipboard);
}
focus_tracker->priv->paste_clipboard = paste_clipboard;
if (paste_clipboard != NULL)
g_signal_connect_swapped (
paste_clipboard, "activate",
G_CALLBACK (e_focus_tracker_paste_clipboard),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "paste-clipboard-action");
}
GtkAction *
e_focus_tracker_get_delete_selection_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->delete_selection;
}
void
e_focus_tracker_set_delete_selection_action (EFocusTracker *focus_tracker,
GtkAction *delete_selection)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (delete_selection != NULL) {
g_return_if_fail (GTK_IS_ACTION (delete_selection));
g_object_ref (delete_selection);
}
if (focus_tracker->priv->delete_selection != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->delete_selection,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->delete_selection);
}
focus_tracker->priv->delete_selection = delete_selection;
if (delete_selection != NULL)
g_signal_connect_swapped (
delete_selection, "activate",
G_CALLBACK (e_focus_tracker_delete_selection),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "delete-selection-action");
}
GtkAction *
e_focus_tracker_get_select_all_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->select_all;
}
void
e_focus_tracker_set_select_all_action (EFocusTracker *focus_tracker,
GtkAction *select_all)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (select_all != NULL) {
g_return_if_fail (GTK_IS_ACTION (select_all));
g_object_ref (select_all);
}
if (focus_tracker->priv->select_all != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->select_all,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->select_all);
}
focus_tracker->priv->select_all = select_all;
if (select_all != NULL)
g_signal_connect_swapped (
select_all, "activate",
G_CALLBACK (e_focus_tracker_select_all),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "select-all-action");
}
GtkAction *
e_focus_tracker_get_undo_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->undo;
}
void
e_focus_tracker_set_undo_action (EFocusTracker *focus_tracker,
GtkAction *undo)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (undo != NULL) {
g_return_if_fail (GTK_IS_ACTION (undo));
g_object_ref (undo);
}
if (focus_tracker->priv->undo != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->undo,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->undo);
}
focus_tracker->priv->undo = undo;
if (undo != NULL)
g_signal_connect_swapped (
undo, "activate",
G_CALLBACK (e_focus_tracker_undo),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "undo-action");
}
GtkAction *
e_focus_tracker_get_redo_action (EFocusTracker *focus_tracker)
{
g_return_val_if_fail (E_IS_FOCUS_TRACKER (focus_tracker), NULL);
return focus_tracker->priv->redo;
}
void
e_focus_tracker_set_redo_action (EFocusTracker *focus_tracker,
GtkAction *redo)
{
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
if (redo != NULL) {
g_return_if_fail (GTK_IS_ACTION (redo));
g_object_ref (redo);
}
if (focus_tracker->priv->redo != NULL) {
g_signal_handlers_disconnect_matched (
focus_tracker->priv->redo,
G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL,
focus_tracker);
g_object_unref (focus_tracker->priv->redo);
}
focus_tracker->priv->redo = redo;
if (redo != NULL)
g_signal_connect_swapped (
redo, "activate",
G_CALLBACK (e_focus_tracker_redo),
focus_tracker);
g_object_notify (G_OBJECT (focus_tracker), "redo-action");
}
void
e_focus_tracker_update_actions (EFocusTracker *focus_tracker)
{
GtkClipboard *clipboard;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
/* Request clipboard targets asynchronously. */
clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
gtk_clipboard_request_targets (
clipboard, (GtkClipboardTargetsReceivedFunc)
focus_tracker_targets_received_cb,
g_object_ref (focus_tracker));
}
void
e_focus_tracker_cut_clipboard (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus)) {
e_selectable_cut_clipboard (E_SELECTABLE (focus));
} else if (GTK_IS_EDITABLE (focus)) {
gtk_editable_cut_clipboard (GTK_EDITABLE (focus));
} else if (GTK_IS_TEXT_VIEW (focus)) {
GtkClipboard *clipboard;
GtkTextView *text_view;
GtkTextBuffer *buffer;
gboolean is_editable;
clipboard = gtk_widget_get_clipboard (
focus, GDK_SELECTION_CLIPBOARD);
text_view = GTK_TEXT_VIEW (focus);
buffer = gtk_text_view_get_buffer (text_view);
is_editable = gtk_text_view_get_editable (text_view);
gtk_text_buffer_cut_clipboard (buffer, clipboard, is_editable);
}
}
void
e_focus_tracker_copy_clipboard (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus)) {
e_selectable_copy_clipboard (E_SELECTABLE (focus));
} else if (GTK_IS_EDITABLE (focus)) {
gtk_editable_copy_clipboard (GTK_EDITABLE (focus));
} else if (GTK_IS_TEXT_VIEW (focus)) {
GtkClipboard *clipboard;
GtkTextView *text_view;
GtkTextBuffer *buffer;
clipboard = gtk_widget_get_clipboard (
focus, GDK_SELECTION_CLIPBOARD);
text_view = GTK_TEXT_VIEW (focus);
buffer = gtk_text_view_get_buffer (text_view);
gtk_text_buffer_copy_clipboard (buffer, clipboard);
}
}
void
e_focus_tracker_paste_clipboard (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus)) {
e_selectable_paste_clipboard (E_SELECTABLE (focus));
} else if (GTK_IS_EDITABLE (focus)) {
gtk_editable_paste_clipboard (GTK_EDITABLE (focus));
} else if (GTK_IS_TEXT_VIEW (focus)) {
GtkClipboard *clipboard;
GtkTextView *text_view;
GtkTextBuffer *buffer;
gboolean is_editable;
clipboard = gtk_widget_get_clipboard (
focus, GDK_SELECTION_CLIPBOARD);
text_view = GTK_TEXT_VIEW (focus);
buffer = gtk_text_view_get_buffer (text_view);
is_editable = gtk_text_view_get_editable (text_view);
gtk_text_buffer_paste_clipboard (
buffer, clipboard, NULL, is_editable);
}
}
void
e_focus_tracker_delete_selection (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus)) {
e_selectable_delete_selection (E_SELECTABLE (focus));
} else if (GTK_IS_EDITABLE (focus)) {
gtk_editable_delete_selection (GTK_EDITABLE (focus));
} else if (GTK_IS_TEXT_VIEW (focus)) {
GtkTextView *text_view;
GtkTextBuffer *buffer;
gboolean is_editable;
text_view = GTK_TEXT_VIEW (focus);
buffer = gtk_text_view_get_buffer (text_view);
is_editable = gtk_text_view_get_editable (text_view);
gtk_text_buffer_delete_selection (buffer, TRUE, is_editable);
}
}
void
e_focus_tracker_select_all (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus)) {
e_selectable_select_all (E_SELECTABLE (focus));
} else if (GTK_IS_EDITABLE (focus)) {
gtk_editable_select_region (GTK_EDITABLE (focus), 0, -1);
} else if (GTK_IS_TEXT_VIEW (focus)) {
GtkTextView *text_view;
GtkTextBuffer *buffer;
GtkTextIter start, end;
text_view = GTK_TEXT_VIEW (focus);
buffer = gtk_text_view_get_buffer (text_view);
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_select_range (buffer, &start, &end);
}
}
void
e_focus_tracker_undo (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus))
e_selectable_undo (E_SELECTABLE (focus));
else
e_widget_undo_do_undo (focus);
}
void
e_focus_tracker_redo (EFocusTracker *focus_tracker)
{
GtkWidget *focus;
g_return_if_fail (E_IS_FOCUS_TRACKER (focus_tracker));
focus = e_focus_tracker_get_focus (focus_tracker);
if (E_IS_SELECTABLE (focus))
e_selectable_redo (E_SELECTABLE (focus));
else
e_widget_undo_do_redo (focus);
}