chrome/browser/ui/views/location_bar/zoom_view.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_VIEW_H_
   6 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_VIEW_H_
   7
   8 #include "base/macros.h"
   9 #include "chrome/browser/ui/views/location_bar/bubble_icon_view.h"
  10 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
  11
  12 namespace ui_zoom {
  13 class ZoomController;
  14 }
  15
  16 // View for the zoom icon in the Omnibox.
  17 class ZoomView : public BubbleIconView {
  18  public:
  19   // Clicking on the ZoomView shows a ZoomBubbleView, which requires the current
  20   // WebContents. Because the current WebContents changes as the user switches
  21   // tabs, a LocationBarView::Delegate is supplied to queried for the current
  22   // WebContents when needed.
  23   explicit ZoomView(LocationBarView::Delegate* location_bar_delegate);
  24   ~ZoomView() override;
  25
  26   // Updates the image and its tooltip appropriately, hiding or showing the icon
  27   // as needed.
  28   void Update(ui_zoom::ZoomController* zoom_controller);
  29
  30  protected:
  31   // BubbleIconView:
  32   void OnExecuting(BubbleIconView::ExecuteSource source) override;
  33   void GetAccessibleState(ui::AXViewState* state) override;
  34   views::BubbleDelegateView* GetBubble() const override;
  35
  36  private:
  37   // The delegate used to get the currently visible WebContents.
  38   LocationBarView::Delegate* location_bar_delegate_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(ZoomView);
  41 };
  42
  43 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_VIEW_H_