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   // Changes the background image for all button states.
  48   void SetBackgroundImageIds(ui::NinePartImageIds normal_image_ids,
  49                              ui::NinePartImageIds hover_image_ids,
  50                              ui::NinePartImageIds pressed_image_ids);
  51
  52   ui::NinePartImageIds GetBackgroundImageIds() const;
  53   NSImage* GetIconImage() const;
  54
  55   // Implement |LocationBarDecoration|.
  56   virtual CGFloat GetWidthForSpace(CGFloat width) OVERRIDE;
  57   virtual void DrawInFrame(NSRect frame, NSView* control_view) OVERRIDE;
  58   virtual bool AcceptsMousePress() OVERRIDE;
  59   virtual bool IsDraggable() OVERRIDE;
  60   virtual bool OnMousePressed(NSRect frame) OVERRIDE;
  61   virtual ButtonDecoration* AsButtonDecoration() OVERRIDE;
  62
  63  private:
  64   ui::NinePartImageIds normal_image_ids_;
  65   ui::NinePartImageIds hover_image_ids_;
  66   ui::NinePartImageIds pressed_image_ids_;
  67   int normal_icon_id_;
  68   int hover_icon_id_;
  69   int pressed_icon_id_;
  70   ButtonState state_;
  71   CGFloat max_inner_padding_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(ButtonDecoration);
  74 };
  75
  76 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_BUTTON_DECORATION_H_