ash/system/tray/hover_highlight_view.h

   1 // Copyright 2013 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 ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
   6 #define ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_
   7
   8 #include "ash/system/tray/actionable_view.h"
   9 #include "base/basictypes.h"
  10 #include "base/compiler_specific.h"
  11 #include "ui/gfx/font.h"
  12
  13 namespace views {
  14 class Label;
  15 }
  16
  17 namespace ash {
  18 namespace internal {
  19
  20 class ViewClickListener;
  21
  22 // A view that changes background color on hover, and triggers a callback in the
  23 // associated ViewClickListener on click. The view can also be forced to
  24 // maintain a fixed height.
  25 class HoverHighlightView : public ActionableView {
  26  public:
  27   explicit HoverHighlightView(ViewClickListener* listener);
  28   virtual ~HoverHighlightView();
  29
  30   // Convenience function for adding an icon and a label.  This also sets the
  31   // accessible name.
  32   void AddIconAndLabel(const gfx::ImageSkia& image,
  33                        const base::string16& text,
  34                        gfx::Font::FontStyle style);
  35
  36   // Convenience function for adding a label with padding on the left for a
  37   // blank icon.  This also sets the accessible name.
  38   // Returns label after parenting it.
  39   views::Label* AddLabel(const base::string16& text,
  40                          gfx::Font::FontStyle style);
  41
  42   // Convenience function for adding an optional check and a label.  In the
  43   // absence of a check, padding is added to align with checked items.
  44   // Returns label after parenting it.
  45   views::Label* AddCheckableLabel(const base::string16& text,
  46                                   gfx::Font::FontStyle style,
  47                                   bool checked);
  48
  49   // Allows view to expand its height.
  50   // Size of unexapandable view is fixed and equals to kTrayPopupItemHeight.
  51   void SetExpandable(bool expandable);
  52
  53   void set_highlight_color(SkColor color) { highlight_color_ = color; }
  54   void set_default_color(SkColor color) { default_color_ = color; }
  55   void set_text_highlight_color(SkColor c) { text_highlight_color_ = c; }
  56   void set_text_default_color(SkColor color) { text_default_color_ = color; }
  57
  58   views::Label* text_label() { return text_label_; }
  59
  60   bool hover() const { return hover_; }
  61
  62  private:
  63   // Overridden from ActionableView:
  64   virtual bool PerformAction(const ui::Event& event) OVERRIDE;
  65
  66   // Overridden from views::View.
  67   virtual gfx::Size GetPreferredSize() OVERRIDE;
  68   virtual int GetHeightForWidth(int width) OVERRIDE;
  69   virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
  70   virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
  71   virtual void OnEnabledChanged() OVERRIDE;
  72   virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE;
  73   virtual void OnFocus() OVERRIDE;
  74
  75   ViewClickListener* listener_;
  76   views::Label* text_label_;
  77   SkColor highlight_color_;
  78   SkColor default_color_;
  79   SkColor text_highlight_color_;
  80   SkColor text_default_color_;
  81   bool hover_;
  82   bool expandable_;
  83
  84   DISALLOW_COPY_AND_ASSIGN(HoverHighlightView);
  85 };
  86
  87 }  // namespace internal
  88 }  // namespace ash
  89
  90 #endif  // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_