Mac OS X: Show the Translate icon on Omnibox

chrome/browser/ui/cocoa/location_bar/translate_decoration.h

+// Copyright 2014 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_COCOA_LOCATION_BAR_TRANSLATE_DECORATION_H_
+#define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_TRANSLATE_DECORATION_H_
+
+#import <Cocoa/Cocoa.h>
+
+#include "chrome/browser/ui/cocoa/location_bar/image_decoration.h"
+
+class CommandUpdater;
+@class TranslateBubbleController;
+
+// Translate icon on the right side of the field. This appears when
+// translation is available on the current page. This icon is lit when
+// translation is already done, otherwise not lit.
+class TranslateDecoration : public ImageDecoration {
+ public:
+  explicit TranslateDecoration(CommandUpdater* command_updater);
+  virtual ~TranslateDecoration();
+
+  // Toggles the icon on or off.
+  void SetLit(bool on);
+
+  // Get the point where the translate bubble should point within the
+  // decoration's frame.
+  NSPoint GetBubblePointInFrame(NSRect frame);
+
+ private:
+  // Implement |LocationBarDecoration|
+  virtual bool AcceptsMousePress() OVERRIDE;
+  virtual bool OnMousePressed(NSRect frame) OVERRIDE;
+  virtual NSString* GetToolTip() OVERRIDE;
+
+  // For showing the translate bubble up.
+  CommandUpdater* command_updater_;  // Weak, owned by Browser.
+
+  // Whether the translate icon is lit.
+  bool is_lit_;
+
+  DISALLOW_COPY_AND_ASSIGN(TranslateDecoration);
+};
+
+#endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_TRANSLATE_DECORATION_H_