chrome/browser/ui/cocoa/location_bar/button_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_BUTTON_DECORATION_H_
   6 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_BUTTON_DECORATION_H_
   7
   8 #import "base/mac/scoped_nsobject.h"
   9 #include "chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h"
  10 #import "ui/base/cocoa/appkit_utils.h"
  11
  12 // |LocationBarDecoration| which looks and acts like a button. It has a
  13 // nine-part image as the background, and an icon that is rendered in the center
  14 // of the nine-part image.
  15
  16 class ButtonDecoration : public LocationBarDecoration {
  17  public:
  18   enum ButtonState {
  19     kButtonStateNormal,
  20     kButtonStateHover,
  21     kButtonStatePressed
  22   };
  23
  24   // Constructs the ButtonDecoration with the specified background 9-part images
  25   // and icons for the three button states. Also takes the maximum number of
  26   // pixels of inner horizontal padding to be used between the left/right 9-part
  27   // images and the icon.
  28   ButtonDecoration(ui::NinePartImageIds normal_image_ids,
  29                    int normal_icon_id,
  30                    ui::NinePartImageIds hover_image_ids,
  31                    int hover_icon_id,
  32                    ui::NinePartImageIds pressed_image_ids,
  33                    int pressed_icon_id,
  34                    CGFloat max_inner_padding);
  35
  36   virtual ~ButtonDecoration();
  37
  38   void SetButtonState(ButtonState state);
  39   ButtonState GetButtonState() const;
  40
  41   // Changes the icon for the specified button state only.
  42   void SetIcon(ButtonState state, int icon_id);
  43
  44   // Changes the icon for all button states.
  45   void SetIcon(int icon_id);
  46
  47   // Implement |LocationBarDecoration|.
  48   virtual CGFloat GetWidthForSpace(CGFloat width) OVERRIDE;
  49   virtual void DrawInFrame(NSRect frame, NSView* control_view) OVERRIDE;
  50   virtual bool AcceptsMousePress() OVERRIDE;
  51   virtual bool IsDraggable() OVERRIDE;
  52   virtual bool OnMousePressed(NSRect frame) OVERRIDE;
  53   virtual ButtonDecoration* AsButtonDecoration() OVERRIDE;
  54
  55  private:
  56   ui::NinePartImageIds normal_image_ids_;
  57   ui::NinePartImageIds hover_image_ids_;
  58   ui::NinePartImageIds pressed_image_ids_;
  59   int normal_icon_id_;
  60   int hover_icon_id_;
  61   int pressed_icon_id_;
  62   ButtonState state_;
  63   CGFloat max_inner_padding_;
  64
  65   ui::NinePartImageIds GetImageIds() const;
  66   int GetIconId() const;
  67
  68   DISALLOW_COPY_AND_ASSIGN(ButtonDecoration);
  69 };
  70
  71 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_BUTTON_DECORATION_H_