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      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_ICON_LABEL_BUBBLE_VIEW_H_
      6 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ICON_LABEL_BUBBLE_VIEW_H_
      7 
      8 #include <string>
      9 
     10 #include "base/strings/string16.h"
     11 #include "ui/gfx/size.h"
     12 #include "ui/views/controls/label.h"
     13 #include "ui/views/view.h"
     14 
     15 namespace gfx {
     16 class Canvas;
     17 class FontList;
     18 class ImageSkia;
     19 }
     20 
     21 namespace views {
     22 class ImageView;
     23 class Label;
     24 class Painter;
     25 }
     26 
     27 // View used to draw a bubble to the left of the address, containing an icon and
     28 // a label.  We use this as a base for the classes that handle the EV bubble and
     29 // tab-to-search UI.
     30 class IconLabelBubbleView : public views::View {
     31  public:
     32   // |hover_background_images| is an optional set of images to be used in place
     33   // of |background_images| during mouse hover.
     34   IconLabelBubbleView(const int background_images[],
     35                       const int hover_background_images[],
     36                       int contained_image,
     37                       const gfx::FontList& font_list,
     38                       SkColor text_color,
     39                       SkColor parent_background_color,
     40                       bool elide_in_middle);
     41   virtual ~IconLabelBubbleView();
     42 
     43   void SetLabel(const base::string16& label);
     44   void SetImage(const gfx::ImageSkia& image);
     45   void set_is_extension_icon(bool is_extension_icon) {
     46     is_extension_icon_ = is_extension_icon;
     47   }
     48 
     49  protected:
     50   // views::View:
     51   virtual gfx::Size GetPreferredSize() const OVERRIDE;
     52   virtual void Layout() OVERRIDE;
     53   virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
     54   virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
     55 
     56   const gfx::FontList& font_list() const { return label_->font_list(); }
     57 
     58   gfx::Size GetSizeForLabelWidth(int width) const;
     59 
     60  private:
     61   // Amount of padding at the edges of the bubble.  If |by_icon| is true, this
     62   // is the padding next to the icon; otherwise it's the padding next to the
     63   // label.  (We increase padding next to the label by the amount of padding
     64   // "built in" to the icon in order to make the bubble appear to have
     65   // symmetrical padding.)
     66   static int GetBubbleOuterPadding(bool by_icon);
     67 
     68   // views::View:
     69   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
     70 
     71   int GetPreLabelWidth() const;
     72 
     73   // For painting the background.
     74   scoped_ptr<views::Painter> background_painter_;
     75   scoped_ptr<views::Painter> hover_background_painter_;
     76 
     77   // The contents of the bubble.
     78   views::ImageView* image_;
     79   views::Label* label_;
     80 
     81   bool is_extension_icon_;
     82   bool in_hover_;
     83 
     84   DISALLOW_COPY_AND_ASSIGN(IconLabelBubbleView);
     85 };
     86 
     87 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ICON_LABEL_BUBBLE_VIEW_H_
     88