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      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_CONTENT_SETTING_DECORATION_H_
      6 #define CHROME_BROWSER_UI_COCOA_LOCATION_BAR_CONTENT_SETTING_DECORATION_H_
      7 #pragma once
      8 
      9 #include "base/memory/scoped_ptr.h"
     10 #import "chrome/browser/ui/cocoa/location_bar/image_decoration.h"
     11 #include "chrome/common/content_settings_types.h"
     12 
     13 // ContentSettingDecoration is used to display the content settings
     14 // images on the current page.
     15 
     16 @class ContentSettingAnimationState;
     17 class ContentSettingImageModel;
     18 class LocationBarViewMac;
     19 class Profile;
     20 class TabContents;
     21 
     22 class ContentSettingDecoration : public ImageDecoration {
     23  public:
     24   ContentSettingDecoration(ContentSettingsType settings_type,
     25                            LocationBarViewMac* owner,
     26                            Profile* profile);
     27   virtual ~ContentSettingDecoration();
     28 
     29   // Updates the image and visibility state based on the supplied TabContents.
     30   // Returns true if the decoration's visible state changed.
     31   bool UpdateFromTabContents(TabContents* tab_contents);
     32 
     33   // Overridden from |LocationBarDecoration|
     34   virtual bool AcceptsMousePress();
     35   virtual bool OnMousePressed(NSRect frame);
     36   virtual NSString* GetToolTip();
     37   virtual CGFloat GetWidthForSpace(CGFloat width);
     38   virtual void DrawInFrame(NSRect frame, NSView* control_view);
     39 
     40   // Called from internal animator. Only public because ObjC objects can't
     41   // be friends.
     42   virtual void AnimationTimerFired();
     43 
     44  private:
     45   // Helper to get where the bubble point should land.  Similar to
     46   // |PageActionDecoration| or |StarDecoration| (|LocationBarViewMac|
     47   // calls those).
     48   NSPoint GetBubblePointInFrame(NSRect frame);
     49 
     50   void SetToolTip(NSString* tooltip);
     51 
     52   // Returns an attributed string with the animated text. Caller is responsible
     53   // for releasing.
     54   NSAttributedString* CreateAnimatedText();
     55 
     56   // Measure the width of the animated text.
     57   CGFloat MeasureTextWidth();
     58 
     59   scoped_ptr<ContentSettingImageModel> content_setting_image_model_;
     60 
     61   LocationBarViewMac* owner_;  // weak
     62   Profile* profile_;  // weak
     63 
     64   scoped_nsobject<NSString> tooltip_;
     65 
     66   // Used when the decoration has animated text.
     67   scoped_nsobject<ContentSettingAnimationState> animation_;
     68   CGFloat text_width_;
     69   scoped_nsobject<NSAttributedString> animated_text_;
     70   scoped_nsobject<NSGradient> gradient_;
     71 
     72   DISALLOW_COPY_AND_ASSIGN(ContentSettingDecoration);
     73 };
     74 
     75 #endif  // CHROME_BROWSER_UI_COCOA_LOCATION_BAR_CONTENT_SETTING_DECORATION_H_
     76