Implementing context menu for the new views textfield.

views/controls/textfield/native_textfield_views.h

Index: views/controls/textfield/native_textfield_views.h
diff --git a/views/controls/textfield/native_textfield_views.h b/views/controls/textfield/native_textfield_views.h
index b8b4e6e2a16745e98bf8a3d4d5c18771cd7de618..983e63b085e9c07dfc9609d26084a3a7e9b1d54e 100644
--- a/views/controls/textfield/native_textfield_views.h
+++ b/views/controls/textfield/native_textfield_views.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -6,6 +6,7 @@
 #define VIEWS_CONTROLS_TEXTFIELD_NATIVE_TEXTFIELD_VIEWS_H_
 #pragma once
 
+#include "app/menus/simple_menu_model.h"
 #include "base/string16.h"
 #include "base/task.h"
 #include "gfx/font.h"
@@ -20,13 +21,13 @@ class Canvas;
 namespace views {
 
 class KeyEvent;
+class Menu2;
 class TextfieldViewsModel;
 
 // A views/skia only implementation of NativeTextfieldWrapper.
 // No platform specific code is used.
 // Following features are not yet supported.
 // * BIDI
-// * Context Menu.
 // * IME/i18n support.
 // * X selection (only if we want to support).
 // * STYLE_MULTILINE, STYLE_LOWERCASE text. (These are not used in
@@ -34,7 +35,9 @@ class TextfieldViewsModel;
 // * Double click to select word, and triple click to select all.
 // * Undo/Redo
 class NativeTextfieldViews : public views::View,
-                             public NativeTextfieldWrapper {
+                             public views::ContextMenuController,
+                             public NativeTextfieldWrapper,
+                             public menus::SimpleMenuModel::Delegate {
  public:
   explicit NativeTextfieldViews(Textfield* parent);
   ~NativeTextfieldViews();
@@ -52,6 +55,11 @@ class NativeTextfieldViews : public views::View,
   virtual void DidGainFocus();
   virtual void WillLoseFocus();
 
+  // views::ContextMenuController overrides:
+  virtual void ShowContextMenu(View* source,
+                               const gfx::Point& p,
+                               bool is_mouse_gesture);
+
   // NativeTextfieldWrapper overrides:
   virtual string16 GetText() const;
   virtual void UpdateText();
@@ -79,6 +87,13 @@ class NativeTextfieldViews : public views::View,
   virtual void HandleDidGainFocus();
   virtual void HandleWillLoseFocus();
 
+  // menus::SimpleMenuModel::Delegate overrides
+  virtual bool IsCommandIdChecked(int command_id) const;
+  virtual bool IsCommandIdEnabled(int command_id) const;
+  virtual bool GetAcceleratorForCommandId(int command_id,
+                                          menus::Accelerator* accelerator);
+  virtual void ExecuteCommand(int command_id);
+
   // class name of internal
   static const char kViewClassName[];
 
@@ -144,6 +159,13 @@ class NativeTextfieldViews : public views::View,
   // Find a cusor position for given |point| in this views coordinates.
   size_t FindCursorPosition(const gfx::Point& point) const;
 
+  // Utility function to inform the parent textfield (and its controller if any)
+  // that the text in the textfield has changed.
+  void PropagateTextChange();
+
+  // Utility function to create the context menu if one does not already exist.
+  void InitContextMenuIfRequired();
+
   // The parent textfield, the owner of this object.
   Textfield* textfield_;
 
@@ -168,6 +190,10 @@ class NativeTextfieldViews : public views::View,
   // A runnable method factory for callback to update the cursor.
   ScopedRunnableMethodFactory<NativeTextfieldViews> cursor_timer_;
 
+  // Context menu and its content list for the textfield.
+  scoped_ptr<menus::SimpleMenuModel> context_menu_contents_;
+  scoped_ptr<Menu2> context_menu_menu_;
+
   DISALLOW_COPY_AND_ASSIGN(NativeTextfieldViews);
 };