summaryrefslogtreecommitdiff
path: root/src/terminal-tabs-menu.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/terminal-tabs-menu.c')
-rw-r--r--src/terminal-tabs-menu.c487
1 files changed, 487 insertions, 0 deletions
diff --git a/src/terminal-tabs-menu.c b/src/terminal-tabs-menu.c
new file mode 100644
index 0000000..2638a28
--- /dev/null
+++ b/src/terminal-tabs-menu.c
@@ -0,0 +1,487 @@
+/* -*- 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 3, 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 <string.h>
+#include <stdlib.h>
+
+#include <gtk/gtk.h>
+
+#include "terminal-tabs-menu.h"
+#include "terminal-screen.h"
+#include "terminal-screen-container.h"
+#include "terminal-intl.h"
+
+#define TERMINAL_ACCELS_N_TABS_SWITCH (12)
+
+#define LABEL_WIDTH_CHARS 32
+#define ACTION_VERB_FORMAT_PREFIX "JmpTab"
+#define ACTION_VERB_FORMAT_PREFIX_LEN 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>/Main/TabsSwitch%u"
+#define ACCEL_PATH_FORMAT_LENGTH strlen (ACCEL_PATH_FORMAT) + 14 + 1
+#define DATA_KEY "TerminalTabsMenu::Action"
+
+#define UI_PATH "/menubar/Tabs"
+
+#define TERMINAL_TABS_MENU_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), TERMINAL_TYPE_TABS_MENU, TerminalTabsMenuPrivate))
+
+struct _TerminalTabsMenuPrivate
+{
+ TerminalWindow *window;
+ GtkActionGroup *action_group;
+ GtkAction *anchor_action;
+ guint ui_id;
+};
+
+enum
+{
+ PROP_0,
+ PROP_WINDOW
+};
+
+static void terminal_tabs_menu_update (TerminalTabsMenu *menu);
+
+/* FIXME: this can be severely optimised */
+static GByteArray *tabs_id_array = NULL;
+static guint n_tabs = 0;
+
+G_DEFINE_TYPE (TerminalTabsMenu, terminal_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 < 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,
+ TerminalTabsMenu *menu)
+{
+ TerminalTabsMenuPrivate *priv = menu->priv;
+ TerminalScreen *screen;
+
+ if (gtk_toggle_action_get_active (action) == FALSE)
+ {
+ return;
+ }
+
+ screen = g_object_get_data (G_OBJECT (action), DATA_KEY);
+ g_return_if_fail (screen != NULL);
+
+ if (terminal_window_get_active (priv->window) != screen)
+ {
+ terminal_window_switch_screen (priv->window, screen);
+ }
+}
+
+static void
+sync_tab_title (TerminalScreen *screen,
+ GParamSpec *pspec,
+ GtkAction *action)
+{
+ const char *title;
+
+ title = terminal_screen_get_title (screen);
+
+ g_object_set (action, "label", title, NULL);
+}
+
+static void
+notebook_page_added_cb (GtkNotebook *notebook,
+ TerminalScreenContainer *container,
+ guint position,
+ TerminalTabsMenu *menu)
+{
+ TerminalTabsMenuPrivate *priv = menu->priv;
+ GtkAction *action;
+ char verb[ACTION_VERB_FORMAT_LENGTH];
+ GSList *group;
+ TerminalScreen *screen;
+
+ screen = terminal_screen_container_get_screen (container);
+
+ 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 (screen, NULL, action);
+ /* make sure the action is alive when handling the signal, see bug #169833 */
+ g_signal_connect_object (screen, "notify::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 (terminal_window_get_active (priv->window) == screen)
+ {
+ gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
+ }
+
+ g_object_set_data (G_OBJECT (screen), DATA_KEY, action);
+ g_object_set_data (G_OBJECT (action), DATA_KEY, screen);
+
+ g_signal_connect (action, "activate",
+ G_CALLBACK (tab_action_activate_cb), menu);
+
+ g_object_unref (action);
+
+ terminal_tabs_menu_update (menu);
+}
+
+static void
+notebook_page_removed_cb (GtkNotebook *notebook,
+ TerminalScreenContainer *container,
+ guint position,
+ TerminalTabsMenu *menu)
+{
+ TerminalTabsMenuPrivate *priv = menu->priv;
+ GtkAction *action;
+ TerminalScreen *screen;
+
+ screen = terminal_screen_container_get_screen (container);
+
+ action = g_object_get_data (G_OBJECT (screen), DATA_KEY);
+ g_return_if_fail (action != NULL);
+
+ free_tab_id (action);
+
+ g_signal_handlers_disconnect_by_func
+ (screen, 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 (screen), DATA_KEY, NULL);
+ gtk_action_group_remove_action (priv->action_group, action);
+
+ terminal_tabs_menu_update (menu);
+}
+
+static void
+notebook_page_reordered_cb (GtkNotebook *notebook,
+ GtkBin *bin,
+ guint position,
+ TerminalTabsMenu *menu)
+{
+ terminal_tabs_menu_update (menu);
+}
+
+static void
+notebook_page_switch_cb (GtkNotebook *notebook,
+#if GTK_CHECK_VERSION (2, 90, 6)
+ GtkWidget *page,
+#else
+ gpointer page,
+#endif
+ guint position,
+ TerminalTabsMenu *menu)
+{
+ TerminalScreenContainer *container;
+ TerminalScreen *screen;
+ GtkAction *action;
+
+#if GTK_CHECK_VERSION (2, 90, 6)
+ container = TERMINAL_SCREEN_CONTAINER (page);
+#else
+ container = TERMINAL_SCREEN_CONTAINER (gtk_notebook_get_nth_page (notebook, position));
+#endif
+ screen = terminal_screen_container_get_screen (container);
+
+ action = g_object_get_data (G_OBJECT (screen), DATA_KEY);
+ g_signal_handlers_block_by_func (action, G_CALLBACK (tab_action_activate_cb), menu);
+ gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (action), TRUE);
+ g_signal_handlers_unblock_by_func (action, G_CALLBACK (tab_action_activate_cb), 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
+terminal_tabs_menu_set_window (TerminalTabsMenu *menu,
+ TerminalWindow *window)
+{
+ TerminalTabsMenuPrivate *priv = menu->priv;
+ GtkWidget *notebook;
+ GtkUIManager *manager;
+
+ priv->window = window;
+
+ manager = GTK_UI_MANAGER (terminal_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);
+
+ notebook = terminal_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);
+ g_signal_connect_object (notebook, "switch-page",
+ G_CALLBACK (notebook_page_switch_cb), menu, 0);
+}
+
+static void
+terminal_tabs_menu_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ TerminalTabsMenu *menu = TERMINAL_TABS_MENU (object);
+
+ switch (prop_id)
+ {
+ case PROP_WINDOW:
+ terminal_tabs_menu_set_window (menu, g_value_get_object (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+terminal_tabs_menu_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ /* no readable properties */
+ g_return_if_reached ();
+}
+
+static void
+terminal_tabs_menu_class_init (TerminalTabsMenuClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = terminal_tabs_menu_set_property;
+ object_class->get_property = terminal_tabs_menu_get_property;
+
+ g_object_class_install_property (object_class,
+ PROP_WINDOW,
+ g_param_spec_object ("window", NULL, NULL,
+ TERMINAL_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 (TerminalTabsMenuPrivate));
+
+ /* We don't want to save accels, so skip them */
+ gtk_accel_map_add_filter ("<Actions>/Main/TabsSwitch*");
+}
+
+static void
+terminal_tabs_menu_init (TerminalTabsMenu *menu)
+{
+ menu->priv = TERMINAL_TABS_MENU_GET_PRIVATE (menu);
+}
+
+static void
+terminal_tabs_menu_clean (TerminalTabsMenu *menu)
+{
+ TerminalTabsMenuPrivate *p = menu->priv;
+ GtkUIManager *manager = GTK_UI_MANAGER (terminal_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;
+ }
+}
+
+TerminalTabsMenu *
+terminal_tabs_menu_new (TerminalWindow *window)
+{
+ return TERMINAL_TABS_MENU (g_object_new (TERMINAL_TYPE_TABS_MENU,
+ "window", window,
+ NULL));
+}
+
+static void
+tab_set_action_accelerator (GtkActionGroup *action_group,
+ GtkAction *action,
+ guint tab_number,
+ gboolean is_single_tab)
+{
+ if (!is_single_tab &&
+ tab_number < TERMINAL_ACCELS_N_TABS_SWITCH)
+ {
+ char accel_path[ACCEL_PATH_FORMAT_LENGTH];
+
+ g_snprintf (accel_path, sizeof (accel_path), ACCEL_PATH_FORMAT, tab_number + 1);
+ gtk_action_set_accel_path (action, accel_path);
+ }
+ else
+ {
+ gtk_action_set_accel_path (action, NULL);
+ return;
+ }
+}
+
+static void
+terminal_tabs_menu_update (TerminalTabsMenu *menu)
+{
+ TerminalTabsMenuPrivate *p = menu->priv;
+ GtkUIManager *manager;
+ GtkAction *action;
+ GList *tabs = NULL, *l;
+ guint i = 0, n;
+ gboolean is_single_tab;
+ const char *verb;
+
+ terminal_tabs_menu_clean (menu);
+
+ tabs = terminal_window_list_screen_containers (p->window);
+
+ n = g_list_length (tabs);
+ if (n == 0) return;
+
+ is_single_tab = (n == 1);
+
+ manager = GTK_UI_MANAGER (terminal_window_get_ui_manager (p->window));
+ p->ui_id = gtk_ui_manager_new_merge_id (manager);
+
+ for (l = tabs; l != NULL; l = l->next)
+ {
+ TerminalScreenContainer *container = TERMINAL_SCREEN_CONTAINER (l->data);
+ GObject *screen = G_OBJECT (terminal_screen_container_get_screen (container));
+
+ action = g_object_get_data (screen, DATA_KEY);
+ g_return_if_fail (action != NULL);
+
+ verb = gtk_action_get_name (action);
+
+ tab_set_action_accelerator (p->action_group, action, i++, is_single_tab);
+
+ gtk_ui_manager_add_ui (manager, p->ui_id,
+ UI_PATH,
+ verb, verb,
+ GTK_UI_MANAGER_MENUITEM, FALSE);
+ }
+
+ g_list_free (tabs);
+}