Home | History | Annotate | Download | only in location_bar 
      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_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_
      6 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "chrome/common/content_settings_types.h"
     10 #include "ui/base/animation/animation_delegate.h"
     11 #include "ui/base/animation/slide_animation.h"
     12 #include "ui/gfx/font.h"
     13 #include "ui/views/painter.h"
     14 #include "ui/views/view.h"
     15 #include "ui/views/widget/widget_observer.h"
     16 
     17 class ContentSettingImageModel;
     18 class LocationBarView;
     19 
     20 namespace content {
     21 class WebContents;
     22 }
     23 
     24 namespace views {
     25 class ImageView;
     26 class Label;
     27 }
     28 
     29 // The ContentSettingImageView displays an icon and optional text label for
     30 // various content settings affordances in the location bar (i.e. plugin
     31 // blocking, geolocation).
     32 class ContentSettingImageView : public ui::AnimationDelegate,
     33                                 public views::View,
     34                                 public views::WidgetObserver {
     35  public:
     36   ContentSettingImageView(ContentSettingsType content_type,
     37                           LocationBarView* parent,
     38                           const gfx::Font& font,
     39                           int font_y_offset,
     40                           SkColor text_color,
     41                           SkColor parent_background_color);
     42   virtual ~ContentSettingImageView();
     43 
     44   // Update the decoration from the shown WebContents.
     45   void Update(content::WebContents* web_contents);
     46 
     47  private:
     48   // Number of milliseconds spent animating open; also the time spent animating
     49   // closed.
     50   static const int kOpenTimeMS;
     51 
     52   // The total animation time, including open and close as well as an
     53   // intervening "stay open" period.
     54   static const int kAnimationDurationMS;
     55 
     56   // Amount of padding at the edges of the bubble.  If |by_icon| is true, this
     57   // is the padding next to the icon; otherwise it's the padding next to the
     58   // label.  (We increase padding next to the label by the amount of padding
     59   // "built in" to the icon in order to make the bubble appear to have
     60   // symmetrical padding.)
     61   static int GetBubbleOuterPadding(bool by_icon);
     62 
     63   // ui::AnimationDelegate:
     64   virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
     65   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
     66   virtual void AnimationCanceled(const ui::Animation* animation) OVERRIDE;
     67 
     68   // views::View:
     69   virtual gfx::Size GetPreferredSize() OVERRIDE;
     70   virtual void Layout() OVERRIDE;
     71   virtual bool OnMousePressed(const ui::MouseEvent& event) OVERRIDE;
     72   virtual void OnMouseReleased(const ui::MouseEvent& event) OVERRIDE;
     73   virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE;
     74   virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE;
     75 
     76   // views::WidgetObserver:
     77   virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
     78 
     79   bool background_showing() const {
     80     return slide_animator_.is_animating() || pause_animation_;
     81   }
     82 
     83   int GetTotalSpacingWhileAnimating() const;
     84   void OnClick();
     85 
     86   LocationBarView* parent_;  // Weak, owns us.
     87   scoped_ptr<ContentSettingImageModel> content_setting_image_model_;
     88   scoped_ptr<views::Painter> background_painter_;
     89   views::ImageView* icon_;
     90   views::Label* text_label_;
     91   ui::SlideAnimation slide_animator_;
     92   bool pause_animation_;
     93   double pause_animation_state_;
     94   views::Widget* bubble_widget_;
     95 
     96   DISALLOW_COPY_AND_ASSIGN(ContentSettingImageView);
     97 };
     98 
     99 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_CONTENT_SETTING_IMAGE_VIEW_H_
    100