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

   1 // Copyright (c) 2011 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_BUBBLE_DECORATION_H_
   6 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_BUBBLE_DECORATION_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/mac/scoped_nsobject.h"
  12 #include "chrome/browser/ui/cocoa/location_bar/location_bar_decoration.h"
  13 #import "ui/base/cocoa/appkit_utils.h"
  14
  15 // Draws an outlined rounded rect, with an optional image to the left
  16 // and an optional text label to the right.
  17
  18 class BubbleDecoration : public LocationBarDecoration {
  19  public:
  20   BubbleDecoration();
  21   virtual ~BubbleDecoration();
  22
  23   // Setup the drawing parameters.
  24   NSImage* GetImage();
  25   void SetImage(NSImage* image);
  26   void SetLabel(NSString* label);
  27   void SetTextColor(NSColor* text_color);
  28   virtual ui::NinePartImageIds GetBubbleImageIds() = 0;
  29
  30   // Implement |LocationBarDecoration|.
  31   virtual void DrawInFrame(NSRect frame, NSView* control_view) OVERRIDE;
  32   virtual void DrawWithBackgroundInFrame(NSRect background_frame,
  33                                          NSRect frame,
  34                                          NSView* control_view) OVERRIDE;
  35   virtual CGFloat GetWidthForSpace(CGFloat width) OVERRIDE;
  36
  37  protected:
  38   // Helper returning bubble width for the given |image| and |label|
  39   // assuming |font_| (for sizing text).  Arguments can be nil.
  40   CGFloat GetWidthForImageAndLabel(NSImage* image, NSString* label);
  41
  42   // Helper to return where the image is drawn, for subclasses to drag
  43   // from.  |frame| is the decoration's frame in the containing cell.
  44   NSRect GetImageRectInFrame(NSRect frame);
  45
  46  private:
  47   friend class SelectedKeywordDecorationTest;
  48   FRIEND_TEST_ALL_PREFIXES(SelectedKeywordDecorationTest,
  49                            UsesPartialKeywordIfNarrow);
  50
  51   // Image drawn in the left side of the bubble.
  52   base::scoped_nsobject<NSImage> image_;
  53
  54   // Label to draw to right of image.  Can be |nil|.
  55   base::scoped_nsobject<NSString> label_;
  56
  57   // Contains attribute for drawing |label_|.
  58   base::scoped_nsobject<NSMutableDictionary> attributes_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(BubbleDecoration);
  61 };
  62
  63 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_BUBBLE_DECORATION_H_