/* * Copyright (C) 2003, 2004 Marco Pesenti Gritti * Copyright (C) 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 "ev-navigation-action-widget.h" #include <glib/gi18n.h> #include <string.h> static void ev_navigation_action_widget_init (EvNavigationActionWidget *action_widget); static void ev_navigation_action_widget_class_init (EvNavigationActionWidgetClass *action_widget); static void ev_navigation_action_widget_toggled (GtkToggleToolButton *toggle); static gboolean ev_navigation_action_widget_button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer data); G_DEFINE_TYPE (EvNavigationActionWidget, ev_navigation_action_widget, GTK_TYPE_TOGGLE_TOOL_BUTTON) enum { SHOW_MENU, LAST_SIGNAL }; static gint signals[LAST_SIGNAL]; static void ev_navigation_action_widget_init (EvNavigationActionWidget *action_widget) { GtkWidget *toggle_button; /* It's rather dirty hack but we need a child to connect to * button press event */ toggle_button = gtk_bin_get_child (GTK_BIN (action_widget)); g_signal_connect (toggle_button, "button-press-event", G_CALLBACK (ev_navigation_action_widget_button_press_event), action_widget); return; } static void ev_navigation_action_widget_class_init (EvNavigationActionWidgetClass *klass) { GtkToggleToolButtonClass *toggle_tool_button_class = GTK_TOGGLE_TOOL_BUTTON_CLASS (klass); toggle_tool_button_class->toggled = ev_navigation_action_widget_toggled; signals[SHOW_MENU] = g_signal_new ("show-menu", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (EvNavigationActionWidgetClass, show_menu), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static int menu_deactivate_cb (GtkMenuShell *menu_shell, EvNavigationActionWidget *widget) { gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON (widget), FALSE); return TRUE; } static void menu_detacher (GtkWidget *widget, GtkMenu *menu) { EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (widget); g_return_if_fail (button->menu == menu); button->menu = NULL; } void ev_navigation_action_widget_set_menu(EvNavigationActionWidget *button, GtkWidget *menu) { if (button->menu == GTK_MENU (menu)) return; if (button->menu && gtk_widget_get_visible (GTK_WIDGET (button->menu))) gtk_menu_shell_deactivate (GTK_MENU_SHELL (button->menu)); if (button->menu) { g_signal_handlers_disconnect_by_func (button->menu, menu_deactivate_cb, button); gtk_menu_detach (button->menu); } button->menu = GTK_MENU (menu); if (button->menu) { gtk_menu_attach_to_widget (button->menu, GTK_WIDGET (button), menu_detacher); g_signal_connect (button->menu, "deactivate", G_CALLBACK (menu_deactivate_cb), button); } } static void menu_position_func (GtkMenu *menu, int *x, int *y, gboolean *push_in, EvNavigationActionWidget *button) { GtkWidget *widget = GTK_WIDGET (button); GtkRequisition menu_req; GtkAllocation allocation; GtkTextDirection direction; GdkWindow *gdk_window; GdkRectangle monitor; gint monitor_num; GdkScreen *screen; gtk_widget_size_request (GTK_WIDGET (button->menu), &menu_req); direction = gtk_widget_get_direction (widget); screen = gtk_widget_get_screen (GTK_WIDGET (menu)); gdk_window = gtk_widget_get_window (widget); monitor_num = gdk_screen_get_monitor_at_window (screen, gdk_window); if (monitor_num < 0) monitor_num = 0; gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor); gdk_window_get_origin (gdk_window, x, y); gtk_widget_get_allocation (widget, &allocation); *x += allocation.x; *y += allocation.y; if (direction == GTK_TEXT_DIR_LTR) *x += MAX (allocation.width - menu_req.width, 0); else if (menu_req.width > allocation.width) *x -= menu_req.width - allocation.width; if ((*y + allocation.height + menu_req.height) <= monitor.y + monitor.height) *y += allocation.height; else if ((*y - menu_req.height) >= monitor.y) *y -= menu_req.height; else if (monitor.y + monitor.height - (*y + allocation.height) > *y) *y += allocation.height; else *y -= menu_req.height; *push_in = FALSE; } static void popup_menu_under_arrow (EvNavigationActionWidget *button, GdkEventButton *event) { g_signal_emit (button, signals[SHOW_MENU], 0); if (!button->menu) return; gtk_menu_popup (button->menu, NULL, NULL, (GtkMenuPositionFunc) menu_position_func, button, event ? event->button : 0, event ? event->time : gtk_get_current_event_time ()); } static void ev_navigation_action_widget_toggled (GtkToggleToolButton *toggle) { EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (toggle); if (!button->menu) return; if (gtk_toggle_tool_button_get_active (GTK_TOGGLE_TOOL_BUTTON (button)) && !gtk_widget_get_visible (GTK_WIDGET (button->menu))) { /* we get here only when the menu is activated by a key * press, so that we can select the first menu item */ popup_menu_under_arrow (button, NULL); gtk_menu_shell_select_first (GTK_MENU_SHELL (button->menu), FALSE); } } static gboolean ev_navigation_action_widget_button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer data) { EvNavigationActionWidget *button = EV_NAVIGATION_ACTION_WIDGET (data); if (event->button == 1) { popup_menu_under_arrow (button, event); gtk_toggle_tool_button_set_active (GTK_TOGGLE_TOOL_BUTTON (button), TRUE); return TRUE; } return FALSE; }