/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright © 2003 David Bordoley
* Copyright © 2003-2004 Christian Persch
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "config.h"
#include "ephy-tabs-menu.h"
#include "ephy-notebook.h"
#include "ephy-marshal.h"
#include "ephy-shell.h"
#include "ephy-debug.h"
#include "ephy-embed-container.h"
#include "ephy-embed-utils.h"
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include <string.h>
#include <stdlib.h>
#define LABEL_WIDTH_CHARS 32
#define ACTION_VERB_FORMAT_PREFIX "JmpTab"
#define ACTION_VERB_FORMAT_PREFIX_LEN (6) /* strlen (ACTION_VERB_FORMAT_PREFIX) */
#define ACTION_VERB_FORMAT ACTION_VERB_FORMAT_PREFIX "%x"
#define ACTION_VERB_FORMAT_LENGTH strlen (ACTION_VERB_FORMAT) + 14 + 1
#define ACTION_VERB_FORMAT_BASE (16) /* %x is hex */
#define ACCEL_PATH_FORMAT "<Actions>/TabsActions/%s"
#define ACCEL_PATH_FORMAT_LENGTH strlen (ACCEL_PATH_FORMAT) -2 + ACTION_VERB_FORMAT_LENGTH
#define DATA_KEY "EphyTabsMenu::Action"
#define EPHY_TABS_MENU_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_TABS_MENU, EphyTabsMenuPrivate))
struct _EphyTabsMenuPrivate
{
EphyWindow *window;
GtkActionGroup *action_group;
GtkAction *anchor_action;
guint ui_id;
};
enum
{
PROP_0,
PROP_WINDOW
};
static void ephy_tabs_menu_class_init (EphyTabsMenuClass *klass);
static void ephy_tabs_menu_init (EphyTabsMenu *menu);
static void ephy_tabs_menu_update (EphyTabsMenu *menu);
/* FIXME: this can be severely optimised */
static GByteArray *tabs_id_array = NULL;
static guint n_tabs = 0;
G_DEFINE_TYPE (EphyTabsMenu, ephy_tabs_menu, G_TYPE_OBJECT)
/* We need to assign unique IDs to tabs, otherwise accels get confused in the
* tabs menu (bug #339548). We could use a serial #, but the ID is used in the
* action name which is stored in a GQuark and so we should allocate them
* efficiently.
*/
static guint
allocate_tab_id (void)
{
int bit;
guint b, len;
guint8 *data;
guint8 byte, mask;
if (n_tabs++ == 0)
{
g_assert (tabs_id_array == NULL);
tabs_id_array = g_byte_array_sized_new (16);
}
/* Find a free ID */
len = tabs_id_array->len;
data = tabs_id_array->data;
for (b = 0; b < len; ++b)
{
if (data[b] != 0xff)
break;
}
/* Need to append a new byte */
if (b == len)
{
guint8 bytes[] = { 0 };
g_byte_array_append (tabs_id_array, bytes, G_N_ELEMENTS (bytes));
g_assert (tabs_id_array->len > b);
}
data = tabs_id_array->data + b;
byte = 0xff ^ *data;
/* Now find the first free bit */
bit = g_bit_nth_lsf (byte, -1);
mask = 1 << bit;
g_assert (bit >= 0 && bit <= 7);
g_assert ((*data & mask) == 0);
/* And mark it as allocated */
*data |= mask;
return b * 8 + bit;
}
static void
free_tab_id (GtkAction *action)
{
const char *name;
guint id;
guint8 *data;
guint b, bit;
name = gtk_action_get_name (action);
id = g_ascii_strtoull (name + ACTION_VERB_FORMAT_PREFIX_LEN, NULL,
ACTION_VERB_FORMAT_BASE);
g_assert (id >= 0 && id < tabs_id_array->len * 8);
b = id >> 3;
bit = id & 0x7;
data = tabs_id_array->data + b;
*data &= ~(1 << bit);
g_assert (n_tabs > 0);
if (--n_tabs == 0)
{
g_assert (tabs_id_array != NULL);
g_byte_array_free (tabs_id_array, TRUE);
tabs_id_array = NULL;
}
}
static void
tab_action_activate_cb (GtkToggleAction *action,
EphyTabsMenu *menu)
{
EphyTabsMenuPrivate *priv = menu->priv;
EphyEmbed *embed;
if (gtk_toggle_action_get_active (action) == FALSE)
{
return;
}
embed = g_object_get_data (G_OBJECT (action), DATA_KEY);
g_return_if_fail (embed != NULL);
LOG ("tab_action_activate_cb embed=%p", embed);
if (ephy_embed_container_get_active_child (EPHY_EMBED_CONTAINER (priv->window)) != embed)
{
ephy_embed_container_set_active_child (EPHY_EMBED_CONTAINER (priv->window), embed);
}
}
static void
sync_tab_title (EphyWebView *view,
GParamSpec *pspec,
GtkAction *action)
{
const char *title;
title = ephy_web_view_get_title_composite (view);
g_object_set (action, "label", title, NULL);
}
static void
notebook_page_added_cb (EphyNotebook *notebook,
EphyEmbed *embed,
guint position,
EphyTabsMenu *menu)
{
EphyTabsMenuPrivate *priv = menu->priv;
GtkAction *action;
char verb[ACTION_VERB_FORMAT_LENGTH];
GSList *group;
LOG ("tab_added_cb embed=%p", embed);
g_snprintf (verb, sizeof (verb), ACTION_VERB_FORMAT, allocate_tab_id ());
action = g_object_new (GTK_TYPE_RADIO_ACTION,
"name", verb,
"tooltip", _("Switch to this tab"),
NULL);
sync_tab_title (EPHY_GET_EPHY_WEB_VIEW_FROM_EMBED (embed), NULL, action);
/* make sure the action is alive when handling the signal, see bug #169833 */
g_signal_connect_object (EPHY_GET_EPHY_WEB_VIEW_FROM_EMBED (embed), "notify::embed-title",
G_CALLBACK (sync_tab_title), action, 0);
gtk_action_group_add_action_with_accel (priv->action_group, action, NULL);
group = gtk_radio_action_get_group (GTK_RADIO_ACTION (priv->anchor_action));
gtk_radio_action_set_group (GTK_RADIO_ACTION (action), group);
/* set this here too, since tab-added comes after notify::active-child */
if (ephy_embed_container_get_active_child (EPHY_EMBED_CONTAINER (priv->window)) == embed)
{
gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
}
g_object_set_data (G_OBJECT (embed), DATA_KEY, action);
g_object_set_data (G_OBJECT (action), DATA_KEY, embed);
g_signal_connect (action, "activate",
G_CALLBACK (tab_action_activate_cb), menu);
g_object_unref (action);
ephy_tabs_menu_update (menu);
}
static void
notebook_page_removed_cb (EphyNotebook *notebook,
EphyEmbed *embed,
guint position,
EphyTabsMenu *menu)
{
EphyTabsMenuPrivate *priv = menu->priv;
GtkAction *action;
LOG ("tab_removed_cb embed=%p", embed);
action = g_object_get_data (G_OBJECT (embed), DATA_KEY);
g_return_if_fail (action != NULL);
free_tab_id (action);
g_signal_handlers_disconnect_by_func
(EPHY_GET_EPHY_WEB_VIEW_FROM_EMBED (embed), G_CALLBACK (sync_tab_title), action);
g_signal_handlers_disconnect_by_func
(action, G_CALLBACK (tab_action_activate_cb), menu);
g_object_set_data (G_OBJECT (embed), DATA_KEY, NULL);
gtk_action_group_remove_action (priv->action_group, action);
ephy_tabs_menu_update (menu);
}
static void
notebook_page_reordered_cb (EphyNotebook *notebook,
EphyEmbed *embed,
guint position,
EphyTabsMenu *menu)
{
LOG ("tabs_reordered_cb");
ephy_tabs_menu_update (menu);
}
static void
connect_proxy_cb (GtkActionGroup *action_group,
GtkAction *action,
GtkWidget *proxy,
gpointer dummy)
{
if (GTK_IS_MENU_ITEM (proxy))
{
GtkLabel *label;
label = GTK_LABEL (gtk_bin_get_child (GTK_BIN (proxy)));
gtk_label_set_use_underline (label, FALSE);
gtk_label_set_ellipsize (label, PANGO_ELLIPSIZE_END);
gtk_label_set_max_width_chars (label, LABEL_WIDTH_CHARS);
}
}
static void
sync_active_tab (EphyWindow *window,
GParamSpec *pspec,
EphyTabsMenu *menu)
{
EphyEmbed *embed;
GtkAction *action;
embed = ephy_embed_container_get_active_child (EPHY_EMBED_CONTAINER (window));
if (embed == NULL) return;
LOG ("active tab is embed %p", embed);
action = g_object_get_data (G_OBJECT (embed), DATA_KEY);
/* happens initially, since the ::active-child comes before
* the ::tab-added signal
*/
/* FIXME that's not true with gtk+ 2.9 anymore */
if (action == NULL) return;
gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
}
static void
ephy_tabs_menu_set_window (EphyTabsMenu *menu,
EphyWindow *window)
{
EphyTabsMenuPrivate *priv = menu->priv;
GtkWidget *notebook;
GtkUIManager *manager;
priv->window = window;
manager = GTK_UI_MANAGER (ephy_window_get_ui_manager (window));
priv->action_group = gtk_action_group_new ("TabsActions");
gtk_ui_manager_insert_action_group (manager, priv->action_group, -1);
g_object_unref (priv->action_group);
priv->anchor_action = g_object_new (GTK_TYPE_RADIO_ACTION,
"name", "TabsMenuAnchorAction",
NULL);
gtk_action_group_add_action (priv->action_group, priv->anchor_action);
g_object_unref (priv->anchor_action);
g_signal_connect (priv->action_group, "connect-proxy",
G_CALLBACK (connect_proxy_cb), NULL);
g_signal_connect (window, "notify::active-child",
G_CALLBACK (sync_active_tab), menu);
notebook = ephy_window_get_notebook (window);
g_signal_connect_object (notebook, "page-added",
G_CALLBACK (notebook_page_added_cb), menu, 0);
g_signal_connect_object (notebook, "page-removed",
G_CALLBACK (notebook_page_removed_cb), menu, 0);
g_signal_connect_object (notebook, "page-reordered",
G_CALLBACK (notebook_page_reordered_cb), menu, 0);
}
static void
ephy_tabs_menu_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EphyTabsMenu *menu = EPHY_TABS_MENU (object);
switch (prop_id)
{
case PROP_WINDOW:
ephy_tabs_menu_set_window (menu, g_value_get_object (value));
break;
}
}
static void
ephy_tabs_menu_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
/* no readable properties */
g_return_if_reached ();
}
static void
ephy_tabs_menu_class_init (EphyTabsMenuClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = ephy_tabs_menu_set_property;
object_class->get_property = ephy_tabs_menu_get_property;
g_object_class_install_property (object_class,
PROP_WINDOW,
g_param_spec_object ("window", NULL, NULL,
EPHY_TYPE_WINDOW,
G_PARAM_WRITABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB |
G_PARAM_CONSTRUCT_ONLY));
g_type_class_add_private (object_class, sizeof (EphyTabsMenuPrivate));
/* We don't want to save accels, so skip them */
gtk_accel_map_add_filter ("<Actions>/TabsActions/JmpTab*");
}
static void
ephy_tabs_menu_init (EphyTabsMenu *menu)
{
menu->priv = EPHY_TABS_MENU_GET_PRIVATE (menu);
}
static void
ephy_tabs_menu_clean (EphyTabsMenu *menu)
{
EphyTabsMenuPrivate *p = menu->priv;
GtkUIManager *manager = GTK_UI_MANAGER (ephy_window_get_ui_manager (p->window));
if (p->ui_id != 0)
{
gtk_ui_manager_remove_ui (manager, p->ui_id);
gtk_ui_manager_ensure_update (manager);
p->ui_id = 0;
}
}
EphyTabsMenu *
ephy_tabs_menu_new (EphyWindow *window)
{
return EPHY_TABS_MENU (g_object_new (EPHY_TYPE_TABS_MENU,
"window", window,
NULL));
}
static void
tab_set_action_accelerator (GtkActionGroup *action_group,
GtkAction *action,
guint tab_number)
{
const char *verb;
char accel_path[ACCEL_PATH_FORMAT_LENGTH];
char accel[7];
gint accel_number;
guint accel_key;
GdkModifierType accel_mods;
verb = gtk_action_get_name (action);
/* set the accel path for the menu item */
g_snprintf (accel_path, sizeof (accel_path),
ACCEL_PATH_FORMAT, verb);
gtk_action_set_accel_path (action, accel_path);
/* Only the first ten tabs get accelerators starting from 1 through 0 */
if (tab_number < 10)
{
accel_key = 0;
accel_number = (tab_number + 1) % 10;
g_snprintf (accel, sizeof (accel), "<alt>%d", accel_number);
gtk_accelerator_parse (accel, &accel_key, &accel_mods);
if (accel_key != 0)
{
gtk_accel_map_change_entry (accel_path, accel_key,
accel_mods, TRUE);
}
}
else
{
gtk_accel_map_change_entry (accel_path, 0, 0, TRUE);
}
}
static void
ephy_tabs_menu_update (EphyTabsMenu *menu)
{
EphyTabsMenuPrivate *p = menu->priv;
GtkUIManager *manager;
GtkAction *action;
GList *tabs = NULL, *l;
guint i = 0;
const char *verb;
LOG ("Rebuilding open tabs menu");
START_PROFILER ("Rebuilding tabs menu")
ephy_tabs_menu_clean (menu);
tabs = ephy_embed_container_get_children (EPHY_EMBED_CONTAINER (p->window));
if (g_list_length (tabs) == 0) return;
manager = GTK_UI_MANAGER (ephy_window_get_ui_manager (p->window));
p->ui_id = gtk_ui_manager_new_merge_id (manager);
for (l = tabs; l != NULL; l = l->next)
{
action = g_object_get_data (G_OBJECT (l->data), DATA_KEY);
g_return_if_fail (action != NULL);
verb = gtk_action_get_name (action);
tab_set_action_accelerator (p->action_group, action, i++);
gtk_ui_manager_add_ui (manager, p->ui_id,
"/menubar/TabsMenu/TabsOpen",
verb, verb,
GTK_UI_MANAGER_MENUITEM, FALSE);
}
g_list_free (tabs);
STOP_PROFILER ("Rebuilding tabs menu")
}