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