chrome/browser/ui/cocoa/location_bar/zoom_decoration.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_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_
   6 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/basictypes.h"
  11 #import "chrome/browser/ui/cocoa/browser/zoom_bubble_controller.h"
  12 #include "chrome/browser/ui/cocoa/location_bar/image_decoration.h"
  13
  14 class LocationBarViewMac;
  15 @class ZoomBubbleController;
  16 class ZoomController;
  17 class ZoomDecorationTest;
  18
  19 // Zoom icon at the end of the omnibox (close to page actions) when at a
  20 // non-standard zoom level.
  21 class ZoomDecoration : public ImageDecoration,
  22                        public ZoomBubbleControllerDelegate {
  23  public:
  24   explicit ZoomDecoration(LocationBarViewMac* owner);
  25   virtual ~ZoomDecoration();
  26
  27   // Called when this decoration should show or hide itself in its most current
  28   // state.
  29   void Update(ZoomController* zoom_controller);
  30
  31   // Shows the zoom bubble for this decoration. If |auto_close| is YES, then
  32   // the bubble will automatically close after a fixed period of time.
  33   void ShowBubble(BOOL auto_close);
  34
  35   // Closes the zoom bubble.
  36   void CloseBubble();
  37
  38  private:
  39   friend ZoomDecorationTest;
  40
  41   NSPoint GetBubblePointInFrame(NSRect frame);
  42   bool IsAtDefaultZoom() const;
  43   bool ShouldShowDecoration() const;
  44
  45   // LocationBarDecoration implementation.
  46   virtual bool AcceptsMousePress() OVERRIDE;
  47   virtual bool OnMousePressed(NSRect frame) OVERRIDE;
  48   virtual NSString* GetToolTip() OVERRIDE;
  49
  50   // ZoomBubbleControllerDelegate implementation.
  51   virtual content::WebContents* GetWebContents() OVERRIDE;
  52   virtual void OnClose() OVERRIDE;
  53
  54   // The control that owns this. Weak.
  55   LocationBarViewMac* owner_;
  56
  57   // The bubble that this decoration shows. Weak, owns self.
  58   ZoomBubbleController* bubble_;
  59
  60   // The string to show for a tooltip.
  61   base::scoped_nsobject<NSString> tooltip_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(ZoomDecoration);
  64 };
  65
  66 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_ZOOM_DECORATION_H_