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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_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
      6 #define CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "chrome/browser/ui/view_ids.h"
     10 #include "chrome/browser/ui/views/frame/browser_frame.h"
     11 #include "chrome/browser/ui/views/frame/browser_non_client_frame_view.h"
     12 #include "chrome/browser/ui/views/frame/opaque_browser_frame_view_layout_delegate.h"
     13 #include "chrome/browser/ui/views/tab_icon_view_model.h"
     14 #include "content/public/browser/notification_observer.h"
     15 #include "content/public/browser/notification_registrar.h"
     16 #include "ui/views/controls/button/button.h"
     17 #include "ui/views/controls/button/menu_button_listener.h"
     18 #include "ui/views/window/non_client_view.h"
     19 
     20 class BrowserView;
     21 class OpaqueBrowserFrameViewLayout;
     22 class OpaqueBrowserFrameViewPlatformSpecific;
     23 class TabIconView;
     24 class NewAvatarButton;
     25 
     26 namespace views {
     27 class ImageButton;
     28 class FrameBackground;
     29 class Label;
     30 }
     31 
     32 class OpaqueBrowserFrameView : public BrowserNonClientFrameView,
     33                                public content::NotificationObserver,
     34                                public views::ButtonListener,
     35                                public views::MenuButtonListener,
     36                                public chrome::TabIconViewModel,
     37                                public OpaqueBrowserFrameViewLayoutDelegate {
     38  public:
     39   // Constructs a non-client view for an BrowserFrame.
     40   OpaqueBrowserFrameView(BrowserFrame* frame, BrowserView* browser_view);
     41   virtual ~OpaqueBrowserFrameView();
     42 
     43   // BrowserNonClientFrameView:
     44   virtual gfx::Rect GetBoundsForTabStrip(views::View* tabstrip) const OVERRIDE;
     45   virtual int GetTopInset() const OVERRIDE;
     46   virtual int GetThemeBackgroundXInset() const OVERRIDE;
     47   virtual void UpdateThrobber(bool running) OVERRIDE;
     48   virtual gfx::Size GetMinimumSize() const OVERRIDE;
     49 
     50   // views::NonClientFrameView:
     51   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
     52   virtual gfx::Rect GetWindowBoundsForClientBounds(
     53       const gfx::Rect& client_bounds) const OVERRIDE;
     54   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
     55   virtual void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask)
     56       OVERRIDE;
     57   virtual void ResetWindowControls() OVERRIDE;
     58   virtual void UpdateWindowIcon() OVERRIDE;
     59   virtual void UpdateWindowTitle() OVERRIDE;
     60   virtual void SizeConstraintsChanged() OVERRIDE;
     61 
     62   // views::View:
     63   virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE;
     64 
     65   // views::ButtonListener:
     66   virtual void ButtonPressed(views::Button* sender, const ui::Event& event)
     67       OVERRIDE;
     68 
     69   // views::MenuButtonListener:
     70   virtual void OnMenuButtonClicked(views::View* source, const gfx::Point& point)
     71       OVERRIDE;
     72 
     73   // chrome::TabIconViewModel:
     74   virtual bool ShouldTabIconViewAnimate() const OVERRIDE;
     75   virtual gfx::ImageSkia GetFaviconForTabIconView() OVERRIDE;
     76 
     77   // content::NotificationObserver implementation:
     78   virtual void Observe(int type,
     79                        const content::NotificationSource& source,
     80                        const content::NotificationDetails& details) OVERRIDE;
     81 
     82   // OpaqueBrowserFrameViewLayoutDelegate implementation:
     83   virtual bool ShouldShowWindowIcon() const OVERRIDE;
     84   virtual bool ShouldShowWindowTitle() const OVERRIDE;
     85   virtual base::string16 GetWindowTitle() const OVERRIDE;
     86   virtual int GetIconSize() const OVERRIDE;
     87   virtual bool ShouldLeaveOffsetNearTopBorder() const OVERRIDE;
     88   virtual gfx::Size GetBrowserViewMinimumSize() const OVERRIDE;
     89   virtual bool ShouldShowCaptionButtons() const OVERRIDE;
     90   virtual bool ShouldShowAvatar() const OVERRIDE;
     91   virtual bool IsRegularOrGuestSession() const OVERRIDE;
     92   virtual gfx::ImageSkia GetOTRAvatarIcon() const OVERRIDE;
     93   virtual bool IsMaximized() const OVERRIDE;
     94   virtual bool IsMinimized() const OVERRIDE;
     95   virtual bool IsFullscreen() const OVERRIDE;
     96   virtual bool IsTabStripVisible() const OVERRIDE;
     97   virtual int GetTabStripHeight() const OVERRIDE;
     98   virtual gfx::Size GetTabstripPreferredSize() const OVERRIDE;
     99 
    100  protected:
    101   views::ImageButton* minimize_button() const { return minimize_button_; }
    102   views::ImageButton* maximize_button() const { return maximize_button_; }
    103   views::ImageButton* restore_button() const { return restore_button_; }
    104   views::ImageButton* close_button() const { return close_button_; }
    105 
    106   // views::View:
    107   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
    108 
    109  private:
    110   // views::NonClientFrameView:
    111   virtual bool DoesIntersectRect(const views::View* target,
    112                                  const gfx::Rect& rect) const OVERRIDE;
    113 
    114   // Creates, adds and returns a new image button with |this| as its listener.
    115   // Memory is owned by the caller.
    116   views::ImageButton* InitWindowCaptionButton(int normal_image_id,
    117                                               int hot_image_id,
    118                                               int pushed_image_id,
    119                                               int mask_image_id,
    120                                               int accessibility_string_id,
    121                                               ViewID view_id);
    122 
    123   // Returns the thickness of the border that makes up the window frame edges.
    124   // This does not include any client edge.  If |restored| is true, acts as if
    125   // the window is restored regardless of the real mode.
    126   int FrameBorderThickness(bool restored) const;
    127 
    128   // Returns the height of the top resize area.  This is smaller than the frame
    129   // border height in order to increase the window draggable area.
    130   int TopResizeHeight() const;
    131 
    132   // Returns the thickness of the entire nonclient left, right, and bottom
    133   // borders, including both the window frame and any client edge.
    134   int NonClientBorderThickness() const;
    135 
    136   // Returns the bounds of the titlebar icon (or where the icon would be if
    137   // there was one).
    138   gfx::Rect IconBounds() const;
    139 
    140   // Returns true if the view should draw its own custom title bar.
    141   bool ShouldShowWindowTitleBar() const;
    142 
    143   // Paint various sub-components of this view.  The *FrameBorder() functions
    144   // also paint the background of the titlebar area, since the top frame border
    145   // and titlebar background are a contiguous component.
    146   void PaintRestoredFrameBorder(gfx::Canvas* canvas);
    147   void PaintMaximizedFrameBorder(gfx::Canvas* canvas);
    148   void PaintToolbarBackground(gfx::Canvas* canvas);
    149   void PaintRestoredClientEdge(gfx::Canvas* canvas);
    150 
    151   // Compute aspects of the frame needed to paint the frame background.
    152   SkColor GetFrameColor() const;
    153   gfx::ImageSkia* GetFrameImage() const;
    154   gfx::ImageSkia* GetFrameOverlayImage() const;
    155   int GetTopAreaHeight() const;
    156 
    157   // Returns the bounds of the client area for the specified view size.
    158   gfx::Rect CalculateClientAreaBounds(int width, int height) const;
    159 
    160   // Our layout manager also calculates various bounds.
    161   OpaqueBrowserFrameViewLayout* layout_;
    162 
    163   // Window controls.
    164   views::ImageButton* minimize_button_;
    165   views::ImageButton* maximize_button_;
    166   views::ImageButton* restore_button_;
    167   views::ImageButton* close_button_;
    168 
    169   // The window icon and title.
    170   TabIconView* window_icon_;
    171   views::Label* window_title_;
    172 
    173   content::NotificationRegistrar registrar_;
    174 
    175   // Background painter for the window frame.
    176   scoped_ptr<views::FrameBackground> frame_background_;
    177 
    178   // Observer that handles platform dependent configuration.
    179   scoped_ptr<OpaqueBrowserFrameViewPlatformSpecific> platform_observer_;
    180 
    181   DISALLOW_COPY_AND_ASSIGN(OpaqueBrowserFrameView);
    182 };
    183 
    184 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
    185