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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/gtk/menu_gtk.h"
#include "base/logging.h"
#include "base/string_util.h"
#include "chrome/common/l10n_util.h"
MenuGtk::MenuGtk(MenuGtk::Delegate* delegate,
const MenuCreateMaterial* menu_data)
: delegate_(delegate),
menu_(gtk_menu_new()) {
BuildMenuIn(menu_, menu_data);
}
MenuGtk::~MenuGtk() {
g_object_unref(menu_);
}
void MenuGtk::Popup(GtkWidget* widget, GdkEvent* event) {
DCHECK(event->type == GDK_BUTTON_PRESS)
<< "Non-button press event sent to RunMenuAt";
gtk_container_foreach(GTK_CONTAINER(menu_), SetMenuItemInfo, this);
GdkEventButton* event_button = reinterpret_cast<GdkEventButton*>(event);
gtk_menu_popup(GTK_MENU(menu_), NULL, NULL,
MenuPositionFunc,
widget,
event_button->button, event_button->time);
}
void MenuGtk::BuildMenuIn(GtkWidget* menu,
const MenuCreateMaterial* menu_data) {
for (; menu_data->type != MENU_END; menu_data++) {
GtkWidget* menu_item = NULL;
std::wstring label;
if (menu_data->label_argument) {
label = l10n_util::GetStringF(
menu_data->label_id,
l10n_util::GetString(menu_data->label_argument));
} else if (menu_data->label_id) {
label = l10n_util::GetString(menu_data->label_id);
} else {
DCHECK(menu_data->type == MENU_SEPARATOR) << "Menu definition broken";
}
switch (menu_data->type) {
case MENU_CHECKBOX:
menu_item = gtk_check_menu_item_new_with_label(
WideToUTF8(label).c_str());
break;
case MENU_SEPARATOR:
menu_item = gtk_separator_menu_item_new();
break;
case MENU_NORMAL:
default:
menu_item = gtk_menu_item_new_with_label(WideToUTF8(label).c_str());
break;
}
if (menu_data->submenu) {
GtkWidget* submenu = gtk_menu_new();
BuildMenuIn(submenu, menu_data->submenu);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), submenu);
}
g_object_set_data(G_OBJECT(menu_item), "menu-data",
const_cast<MenuCreateMaterial*>(menu_data));
g_signal_connect(G_OBJECT(menu_item), "activate",
G_CALLBACK(OnMenuItemActivated), this);
gtk_widget_show(menu_item);
gtk_menu_append(menu, menu_item);
}
}
/* static */
void MenuGtk::OnMenuItemActivated(GtkMenuItem* menuitem, MenuGtk* menu) {
// We receive activation messages when highlighting a menu that has a
// submenu. Ignore them.
if (!gtk_menu_item_get_submenu(menuitem)) {
const MenuCreateMaterial* data =
reinterpret_cast<const MenuCreateMaterial*>(
g_object_get_data(G_OBJECT(menuitem), "menu-data"));
menu->delegate_->ExecuteCommand(data->id);
}
}
/* static */
void MenuGtk::MenuPositionFunc(GtkMenu* menu,
int* x,
int* y,
gboolean* push_in,
void* void_widget) {
GtkWidget* widget = GTK_WIDGET(void_widget);
GtkRequisition menu_req;
GdkRectangle monitor;
gtk_widget_size_request(GTK_WIDGET(menu), &menu_req);
GdkScreen* screen = gtk_widget_get_screen(GTK_WIDGET(menu));
gint monitor_num = gdk_screen_get_monitor_at_window(screen, widget->window);
if (monitor_num < 0)
monitor_num = 0;
gdk_screen_get_monitor_geometry(screen, monitor_num, &monitor);
gdk_window_get_origin(widget->window, x, y);
*x += widget->allocation.x + widget->allocation.width;
*y += widget->allocation.y + widget->allocation.height;
*x -= menu_req.width;
// TODO(erg): Deal with this scrolling off the bottom of the screen.
// Regretfully, we can't rely on push_in to alter the coordinates above to
// always make the menu fit on screen. It'd make the above calculations just
// work though...
*push_in = FALSE;
}
/* static */
void MenuGtk::SetMenuItemInfo(GtkWidget* widget, void* raw_menu) {
MenuGtk* menu = static_cast<MenuGtk*>(raw_menu);
const MenuCreateMaterial* data =
reinterpret_cast<const MenuCreateMaterial*>(
g_object_get_data(G_OBJECT(widget), "menu-data"));
if (data) {
if (GTK_IS_CHECK_MENU_ITEM(widget)) {
GtkCheckMenuItem* item = GTK_CHECK_MENU_ITEM(widget);
gtk_check_menu_item_set_active(
item, menu->delegate_->IsItemChecked(data->id));
}
if (GTK_IS_MENU_ITEM(widget)) {
gtk_widget_set_sensitive(
widget, menu->delegate_->IsCommandEnabled(data->id));
GtkWidget* submenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(widget));
if (submenu) {
gtk_container_foreach(GTK_CONTAINER(submenu), &MenuGtk::SetMenuItemInfo,
raw_menu);
}
}
}
}
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