Create 2272 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/2272@1993 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/menu_model_impl.h

@@ -0,0 +1,144 @@
+// Copyright (c) 2012 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2012 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 CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_
+#define CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_
+#pragma once
+
+#include <vector>
+
+#include "include/cef_menu_model.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/threading/platform_thread.h"
+#include "ui/base/models/menu_model.h"
+
+class CefMenuModelImpl : public CefMenuModel {
+ public:
+  class Delegate {
+   public:
+    // Perform the action associated with the specified |command_id| and
+    // optional |event_flags|.
+    virtual void ExecuteCommand(CefRefPtr<CefMenuModelImpl> source,
+                                int command_id,
+                                cef_event_flags_t event_flags) =0;
+
+    // Notifies the delegate that the menu is about to show.
+    virtual void MenuWillShow(CefRefPtr<CefMenuModelImpl> source) =0;
+
+    // Notifies the delegate that the menu has closed.
+    virtual void MenuClosed(CefRefPtr<CefMenuModelImpl> source) =0;
+
+    // Allows the delegate to modify a menu item label before it's displayed.
+    virtual bool FormatLabel(base::string16& label) =0;
+
+   protected:
+    virtual ~Delegate() {}
+  };
+
+  // The delegate must outlive this class.
+  explicit CefMenuModelImpl(Delegate* delegate);
+  ~CefMenuModelImpl() override;
+
+  // CefMenuModel methods.
+  bool Clear() override;
+  int GetCount() override;
+  bool AddSeparator() override;
+  bool AddItem(int command_id, const CefString& label) override;
+  bool AddCheckItem(int command_id, const CefString& label) override;
+  bool AddRadioItem(int command_id, const CefString& label,
+      int group_id) override;
+  CefRefPtr<CefMenuModel> AddSubMenu(int command_id,
+      const CefString& label) override;
+  bool InsertSeparatorAt(int index) override;
+  bool InsertItemAt(int index, int command_id,
+      const CefString& label) override;
+  bool InsertCheckItemAt(int index, int command_id,
+      const CefString& label) override;
+  bool InsertRadioItemAt(int index, int command_id,
+      const CefString& label, int group_id) override;
+  CefRefPtr<CefMenuModel> InsertSubMenuAt(int index, int command_id,
+      const CefString& label) override;
+  bool Remove(int command_id) override;
+  bool RemoveAt(int index) override;
+  int GetIndexOf(int command_id) override;
+  int GetCommandIdAt(int index) override;
+  bool SetCommandIdAt(int index, int command_id) override;
+  CefString GetLabel(int command_id) override;
+  CefString GetLabelAt(int index) override;
+  bool SetLabel(int command_id, const CefString& label) override;
+  bool SetLabelAt(int index, const CefString& label) override;
+  MenuItemType GetType(int command_id) override;
+  MenuItemType GetTypeAt(int index) override;
+  int GetGroupId(int command_id) override;
+  int GetGroupIdAt(int index) override;
+  bool SetGroupId(int command_id, int group_id) override;
+  bool SetGroupIdAt(int index, int group_id) override;
+  CefRefPtr<CefMenuModel> GetSubMenu(int command_id) override;
+  CefRefPtr<CefMenuModel> GetSubMenuAt(int index) override;
+  bool IsVisible(int command_id) override;
+  bool IsVisibleAt(int index) override;
+  bool SetVisible(int command_id, bool visible) override;
+  bool SetVisibleAt(int index, bool visible) override;
+  bool IsEnabled(int command_id) override;
+  bool IsEnabledAt(int index) override;
+  bool SetEnabled(int command_id, bool enabled) override;
+  bool SetEnabledAt(int index, bool enabled) override;
+  bool IsChecked(int command_id) override;
+  bool IsCheckedAt(int index) override;
+  bool SetChecked(int command_id, bool checked) override;
+  bool SetCheckedAt(int index, bool checked) override;
+  bool HasAccelerator(int command_id) override;
+  bool HasAcceleratorAt(int index) override;
+  bool SetAccelerator(int command_id, int key_code, bool shift_pressed,
+      bool ctrl_pressed, bool alt_pressed) override;
+  bool SetAcceleratorAt(int index, int key_code, bool shift_pressed,
+      bool ctrl_pressed, bool alt_pressed) override;
+  bool RemoveAccelerator(int command_id) override;
+  bool RemoveAcceleratorAt(int index) override;
+  bool GetAccelerator(int command_id, int& key_code,
+      bool& shift_pressed, bool& ctrl_pressed, bool& alt_pressed) override;
+  bool GetAcceleratorAt(int index, int& key_code, bool& shift_pressed,
+      bool& ctrl_pressed, bool& alt_pressed) override;
+
+  // Callbacks from the ui::MenuModel implementation.
+  void ActivatedAt(int index, cef_event_flags_t event_flags);
+  void MenuWillShow();
+  void MenuClosed();
+  base::string16 GetFormattedLabelAt(int index);
+
+  // Verify that only a single reference exists to all CefMenuModelImpl objects.
+  bool VerifyRefCount();
+
+  ui::MenuModel* model() { return model_.get(); }
+  Delegate* delegate() { return delegate_; }
+  void set_delegate(Delegate* delegate) { delegate_ = NULL; }
+
+ private:
+  struct Item;
+
+  typedef std::vector<Item> ItemVector;
+
+  // Functions for inserting items into |items_|.
+  void AppendItem(const Item& item);
+  void InsertItemAt(const Item& item, int index);
+  void ValidateItem(const Item& item);
+
+  // Notify the delegate that the menu is closed.
+  void OnMenuClosed();
+
+  // Verify that the object is being accessed from the correct thread.
+  bool VerifyContext();
+
+  base::PlatformThreadId supported_thread_id_;
+  Delegate* delegate_;
+  ItemVector items_;
+  scoped_ptr<ui::MenuModel> model_;
+
+  IMPLEMENT_REFCOUNTING(CefMenuModelImpl);
+  DISALLOW_COPY_AND_ASSIGN(CefMenuModelImpl);
+};
+
+#endif  // CEF_LIBCEF_BROWSER_MENU_MODEL_IMPL_H_