chrome/browser/ui/views/frame/browser_header_painter_ash.h

   1 // Copyright 2014 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_FRAME_BROWSER_HEADER_PAINTER_ASH_H_
   6 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_HEADER_PAINTER_ASH_H_
   7
   8 #include "ash/frame/header_painter.h"
   9 #include "base/basictypes.h"
  10 #include "base/compiler_specific.h"  // override
  11 #include "base/memory/scoped_ptr.h"
  12 #include "ui/gfx/animation/animation_delegate.h"
  13
  14 class BrowserView;
  15
  16 namespace ash {
  17 class FrameCaptionButtonContainerView;
  18 }
  19
  20 namespace gfx {
  21 class ImageSkia;
  22 class Rect;
  23 class SlideAnimation;
  24 }
  25 namespace views {
  26 class View;
  27 class Widget;
  28 }
  29
  30 // Helper class for painting the browser window header.
  31 class BrowserHeaderPainterAsh : public ash::HeaderPainter,
  32                                 public gfx::AnimationDelegate {
  33  public:
  34   BrowserHeaderPainterAsh();
  35   ~BrowserHeaderPainterAsh() override;
  36
  37   // BrowserHeaderPainterAsh does not take ownership of any of the parameters.
  38   void Init(
  39     views::Widget* frame,
  40     BrowserView* browser_view,
  41     views::View* header_view,
  42     views::View* window_icon,
  43     ash::FrameCaptionButtonContainerView* caption_button_container);
  44
  45   // ash::HeaderPainter overrides:
  46   int GetMinimumHeaderWidth() const override;
  47   void PaintHeader(gfx::Canvas* canvas, Mode mode) override;
  48   void LayoutHeader() override;
  49   int GetHeaderHeight() const override;
  50   int GetHeaderHeightForPainting() const override;
  51   void SetHeaderHeightForPainting(int height) override;
  52   void SchedulePaintForTitle() override;
  53   void UpdateLeftViewXInset(int left_view_x_inset) override;
  54
  55  private:
  56   // gfx::AnimationDelegate override:
  57   void AnimationProgressed(const gfx::Animation* animation) override;
  58
  59   // Paints highlight around the edge of the header for restored windows.
  60   void PaintHighlightForRestoredWindow(gfx::Canvas* canvas);
  61
  62   // Paints the title bar, primarily the title string.
  63   void PaintTitleBar(gfx::Canvas* canvas);
  64
  65   // Sets |frame_image| and |frame_overlay_image| to the frame image and the
  66   // frame overlay image respectivately which should be used to paint the
  67   // header.
  68   void GetFrameImages(Mode mode,
  69                       gfx::ImageSkia* frame_image,
  70                       gfx::ImageSkia* frame_overlay_image) const;
  71
  72   // Sets |frame_image| and |frame_overlay_image| to the frame image and the
  73   // frame overlay image respectively that should be used to paint the header
  74   // for tabbed browser windows.
  75   void GetFrameImagesForTabbedBrowser(
  76       Mode mode,
  77       gfx::ImageSkia* frame_image,
  78       gfx::ImageSkia* frame_overlay_image) const;
  79
  80   // Returns the frame image which should be used to paint the header for popup
  81   // browser windows and for hosted app windows which show the toolbar.
  82   gfx::ImageSkia GetFrameImageForNonTabbedBrowser(Mode mode) const;
  83
  84   // Updates the images used for the minimize, restore and close buttons.
  85   void UpdateCaptionButtonImages();
  86
  87   // Returns bounds of the region in |view_| which is painted with the header
  88   // images. The region is assumed to start at the top left corner of |view_|
  89   // and to have the same width as |view_|.
  90   gfx::Rect GetPaintedBounds() const;
  91
  92   // Returns the bounds for the title.
  93   gfx::Rect GetTitleBounds() const;
  94
  95   views::Widget* frame_;
  96
  97   // Whether the header is for a tabbed browser window.
  98   bool is_tabbed_;
  99
 100   // Whether the header is for an incognito browser window.
 101   bool is_incognito_;
 102
 103   // The header view.
 104   views::View* view_;
 105
 106   views::View* window_icon_;
 107   int window_icon_x_inset_;
 108   ash::FrameCaptionButtonContainerView* caption_button_container_;
 109   int painted_height_;
 110
 111   // Whether the header is painted for the first time.
 112   bool initial_paint_;
 113
 114   // Whether the header should be painted as active.
 115   Mode mode_;
 116
 117   scoped_ptr<gfx::SlideAnimation> activation_animation_;
 118
 119   DISALLOW_COPY_AND_ASSIGN(BrowserHeaderPainterAsh);
 120 };
 121
 122 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_HEADER_PAINTER_ASH_H_