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 #include "ui/gfx/text_constants.h"
  13
  14 namespace views {
  15 class Label;
  16 }
  17
  18 namespace ash {
  19 class ViewClickListener;
  20
  21 // A view that changes background color on hover, and triggers a callback in the
  22 // associated ViewClickListener on click. The view can also be forced to
  23 // maintain a fixed height.
  24 class HoverHighlightView : public ActionableView {
  25  public:
  26   explicit HoverHighlightView(ViewClickListener* listener);
  27   virtual ~HoverHighlightView();
  28
  29   // Convenience function for adding an icon and a label.  This also sets the
  30   // accessible name.
  31   void AddIconAndLabel(const gfx::ImageSkia& image,
  32                        const base::string16& text,
  33                        gfx::Font::FontStyle style);
  34
  35   // Convenience function for adding a label with padding on the left for a
  36   // blank icon.  This also sets the accessible name.
  37   // Returns label after parenting it.
  38   views::Label* AddLabel(const base::string16& text,
  39                          gfx::HorizontalAlignment alignment,
  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  protected:
  63   // Overridden from views::View.
  64   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
  65
  66  private:
  67   // Overridden from ActionableView:
  68   virtual bool PerformAction(const ui::Event& event) OVERRIDE;
  69
  70   // Overridden from views::View.
  71   virtual gfx::Size GetPreferredSize() const OVERRIDE;
  72   virtual int GetHeightForWidth(int width) const OVERRIDE;
  73   virtual void OnMouseEntered(const ui::MouseEvent& event) OVERRIDE;
  74   virtual void OnMouseExited(const ui::MouseEvent& event) OVERRIDE;
  75   virtual void OnEnabledChanged() OVERRIDE;
  76   virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE;
  77   virtual void OnFocus() OVERRIDE;
  78
  79   ViewClickListener* listener_;
  80   views::Label* text_label_;
  81   SkColor highlight_color_;
  82   SkColor default_color_;
  83   SkColor text_highlight_color_;
  84   SkColor text_default_color_;
  85   bool hover_;
  86   bool expandable_;
  87   bool checkable_;
  88   bool checked_;
  89
  90   DISALLOW_COPY_AND_ASSIGN(HoverHighlightView);
  91 };
  92
  93 }  // namespace ash
  94
  95 #endif  // ASH_SYSTEM_TRAY_HOVER_HIGHLIGHT_VIEW_H_