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// Copyright (c) 2011 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.
#ifndef CHROME_BROWSER_UI_GTK_GLOBAL_BOOKMARK_MENU_H_
#define CHROME_BROWSER_UI_GTK_GLOBAL_BOOKMARK_MENU_H_
#include <map>
#include "base/compiler_specific.h"
#include "base/task.h"
#include "chrome/browser/bookmarks/bookmark_model_observer.h"
#include "chrome/browser/ui/gtk/global_menu_owner.h"
#include "chrome/browser/ui/gtk/owned_widget_gtk.h"
#include "content/common/notification_observer.h"
#include "content/common/notification_registrar.h"
#include "ui/base/gtk/gtk_signal.h"
class Browser;
class Profile;
typedef struct _GdkPixbuf GdkPixbuf;
typedef struct _GtkWidget GtkWidget;
// Manages the global bookmarks menu.
//
// There are a few subtleties here: we can't rely on accurate event
// dispositions being sent back, right click menus on menu items are placed
// relative to the main chrome window instead of the global menu bar, and we
// need to update the menu in the background (instead of building it on showing
// and not updating it if the model changes). I'm not even thinking about
// making these draggable since these items aren't displayed in our process.
class GlobalBookmarkMenu : public GlobalMenuOwner,
public NotificationObserver,
public BookmarkModelObserver {
public:
explicit GlobalBookmarkMenu(Browser* browser);
virtual ~GlobalBookmarkMenu();
// Takes the bookmark menu we need to modify based on bookmark state.
virtual void Init(GtkWidget* bookmark_menu, GtkWidget* bookmark_menu_item);
private:
// Schedules the menu to be rebuilt. The mac version sets a boolean and
// rebuilds the menu during their pre-show callback. We don't have anything
// like that: by the time we get a "show" signal from GTK+, the menu has
// already been displayed and it will take multiple dbus calls to add the
// menu items.
//
// Since the bookmark model works by sending us BookmarkNodeEvent
// notifications one by one, we use a timer to batch up calls.
void RebuildMenuInFuture();
// Rebuilds the menu now. Called on initial Load() and from
// RebuildMenuInFuture().
void RebuildMenu();
// Adds |item| to |menu| and marks it as a dynamic item.
void AddBookmarkMenuItem(GtkWidget* menu, GtkWidget* menu_item);
// Adds an menu item representing |node| to |menu|.
void AddNodeToMenu(const BookmarkNode* node, GtkWidget* menu);
// This configures a GtkWidget with all the data from a BookmarkNode. This is
// used to update existing menu items, as well as to configure newly created
// ones, like in AddNodeToMenu().
void ConfigureMenuItem(const BookmarkNode* node, GtkWidget* menu_item);
// Returns the GtkMenuItem for |node|.
GtkWidget* MenuItemForNode(const BookmarkNode* node);
// Removes all bookmark entries from the bookmark menu in anticipation that
// we're about to do a rebuild.
void ClearBookmarkMenu();
// Callback used in ClearBookmarkMenu().
static void ClearBookmarkItemCallback(GtkWidget* menu_item,
void* unused);
// NotificationObserver:
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// BookmarkModelObserver:
virtual void Loaded(BookmarkModel* model) OVERRIDE;
virtual void BookmarkModelBeingDeleted(BookmarkModel* model) OVERRIDE;
virtual void BookmarkNodeMoved(BookmarkModel* model,
const BookmarkNode* old_parent,
int old_index,
const BookmarkNode* new_parent,
int new_index) OVERRIDE;
virtual void BookmarkNodeAdded(BookmarkModel* model,
const BookmarkNode* parent,
int index) OVERRIDE;
virtual void BookmarkNodeRemoved(BookmarkModel* model,
const BookmarkNode* parent,
int old_index,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeChanged(BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeFaviconChanged(BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
virtual void BookmarkNodeChildrenReordered(BookmarkModel* model,
const BookmarkNode* node) OVERRIDE;
CHROMEGTK_CALLBACK_0(GlobalBookmarkMenu, void, OnBookmarkItemActivated);
Browser* browser_;
Profile* profile_;
NotificationRegistrar registrar_;
GdkPixbuf* default_favicon_;
GdkPixbuf* default_folder_;
OwnedWidgetGtk bookmark_menu_;
ScopedRunnableMethodFactory<GlobalBookmarkMenu> method_factory_;
// In order to appropriately update items in the bookmark menu, without
// forcing a rebuild, map the model's nodes to menu items.
std::map<const BookmarkNode*, GtkWidget*> bookmark_nodes_;
};
#endif // CHROME_BROWSER_UI_GTK_GLOBAL_BOOKMARK_MENU_H_
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