172a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "chrome/browser/ui/gtk/gtk_custom_menu.h" 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 772a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "chrome/browser/ui/gtk/gtk_custom_menu_item.h" 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 9c407dc5cd9bdc5668497f21b26b09d988ab439deBen MurdochG_DEFINE_TYPE(GtkCustomMenu, gtk_custom_menu, GTK_TYPE_MENU) 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Stolen directly from gtkmenushell.c. I'd love to call the library version 12c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// instead, but it's static and isn't exported. :( 13c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic gint gtk_menu_shell_is_item(GtkMenuShell* menu_shell, 14c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* child) { 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget *parent; 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch g_return_val_if_fail(GTK_IS_MENU_SHELL(menu_shell), FALSE); 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch g_return_val_if_fail(child != NULL, FALSE); 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch parent = child->parent; 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch while (GTK_IS_MENU_SHELL(parent)) { 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (parent == reinterpret_cast<GtkWidget*>(menu_shell)) 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return TRUE; 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch parent = GTK_MENU_SHELL(parent)->parent_menu_shell; 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return FALSE; 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Stolen directly from gtkmenushell.c. I'd love to call the library version 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// instead, but it's static and isn't exported. :( 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic GtkWidget* gtk_menu_shell_get_item(GtkMenuShell* menu_shell, 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GdkEvent* event) { 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* menu_item = gtk_get_event_widget(event); 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch while (menu_item && !GTK_IS_MENU_ITEM(menu_item)) 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch menu_item = menu_item->parent; 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (menu_item && gtk_menu_shell_is_item(menu_shell, menu_item)) 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return menu_item; 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch else 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return NULL; 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// When processing a button event, abort processing if the cursor isn't in a 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// clickable region. 47c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic gboolean gtk_custom_menu_button_press(GtkWidget* widget, 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GdkEventButton* event) { 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* menu_item = gtk_menu_shell_get_item( 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_MENU_SHELL(widget), reinterpret_cast<GdkEvent*>(event)); 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GTK_IS_CUSTOM_MENU_ITEM(menu_item)) { 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!gtk_custom_menu_item_is_in_clickable_region( 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_CUSTOM_MENU_ITEM(menu_item))) { 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return TRUE; 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return GTK_WIDGET_CLASS(gtk_custom_menu_parent_class)-> 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch button_press_event(widget, event); 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// When processing a button event, abort processing if the cursor isn't in a 633345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// clickable region. If it's in a button that doesn't dismiss the menu, fire 643345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick// that event and abort having the normal GtkMenu code run. 65c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic gboolean gtk_custom_menu_button_release(GtkWidget* widget, 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GdkEventButton* event) { 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* menu_item = gtk_menu_shell_get_item( 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_MENU_SHELL(widget), reinterpret_cast<GdkEvent*>(event)); 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GTK_IS_CUSTOM_MENU_ITEM(menu_item)) { 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (!gtk_custom_menu_item_is_in_clickable_region( 71c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_CUSTOM_MENU_ITEM(menu_item))) { 72c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Stop processing this event. This isn't a clickable region. 73c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return TRUE; 74c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 753345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick 763345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick if (gtk_custom_menu_item_try_no_dismiss_command( 773345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick GTK_CUSTOM_MENU_ITEM(menu_item))) { 783345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick return TRUE; 793345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick } 80c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 81c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 82c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return GTK_WIDGET_CLASS(gtk_custom_menu_parent_class)-> 83c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch button_release_event(widget, event); 84c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 85c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 86c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Manually forward button press events to the menu item (and then do what we'd 87c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// do normally). 88c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic gboolean gtk_custom_menu_motion_notify(GtkWidget* widget, 89c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GdkEventMotion* event) { 90c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* menu_item = gtk_menu_shell_get_item( 91c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_MENU_SHELL(widget), (GdkEvent*)event); 92c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GTK_IS_CUSTOM_MENU_ITEM(menu_item)) { 93c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch gtk_custom_menu_item_receive_motion_event(GTK_CUSTOM_MENU_ITEM(menu_item), 94c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch event->x, event->y); 95c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 96c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 97c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return GTK_WIDGET_CLASS(gtk_custom_menu_parent_class)-> 98c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch motion_notify_event(widget, event); 99c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 100c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 101c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic void gtk_custom_menu_move_current(GtkMenuShell* menu_shell, 102c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkMenuDirectionType direction) { 103c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // If the currently selected item is custom, we give it first chance to catch 104c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // up/down events. 105c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 106c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // TODO(erg): We are breaking a GSEAL by directly accessing this. We'll need 107c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // to fix this by the time gtk3 comes out. 108c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidget* menu_item = GTK_MENU_SHELL(menu_shell)->active_menu_item; 109c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GTK_IS_CUSTOM_MENU_ITEM(menu_item)) { 110c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch switch (direction) { 111c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case GTK_MENU_DIR_PREV: 112c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch case GTK_MENU_DIR_NEXT: 113c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (gtk_custom_menu_item_handle_move(GTK_CUSTOM_MENU_ITEM(menu_item), 114c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch direction)) 115c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return; 116c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 117c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch default: 118c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch break; 119c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 120c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 121c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 122c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_MENU_SHELL_CLASS(gtk_custom_menu_parent_class)-> 123c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch move_current(menu_shell, direction); 124c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 125c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // In the case of hitting PREV and transitioning to a custom menu, we want to 126c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // make sure we're selecting the final item in the list, not the first one. 127c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch menu_item = GTK_MENU_SHELL(menu_shell)->active_menu_item; 128c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch if (GTK_IS_CUSTOM_MENU_ITEM(menu_item)) { 129c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch gtk_custom_menu_item_select_item_by_direction( 130c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GTK_CUSTOM_MENU_ITEM(menu_item), direction); 131c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch } 132c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 133c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 134c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic void gtk_custom_menu_init(GtkCustomMenu* menu) { 135c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 136c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 137c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochstatic void gtk_custom_menu_class_init(GtkCustomMenuClass* klass) { 138c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkWidgetClass* widget_class = GTK_WIDGET_CLASS(klass); 139c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch GtkMenuShellClass* menu_shell_class = GTK_MENU_SHELL_CLASS(klass); 140c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 141c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch widget_class->button_press_event = gtk_custom_menu_button_press; 142c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch widget_class->button_release_event = gtk_custom_menu_button_release; 143c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch widget_class->motion_notify_event = gtk_custom_menu_motion_notify; 144c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 145c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch menu_shell_class->move_current = gtk_custom_menu_move_current; 146c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 147c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 148c407dc5cd9bdc5668497f21b26b09d988ab439deBen MurdochGtkWidget* gtk_custom_menu_new() { 149c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch return GTK_WIDGET(g_object_new(GTK_TYPE_CUSTOM_MENU, NULL)); 150c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} 151