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      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 APPS_UI_VIEWS_APP_WINDOW_FRAME_VIEW_H_
      6 #define APPS_UI_VIEWS_APP_WINDOW_FRAME_VIEW_H_
      7 
      8 #include <string>
      9 
     10 #include "third_party/skia/include/core/SkColor.h"
     11 #include "ui/gfx/path.h"
     12 #include "ui/gfx/rect.h"
     13 #include "ui/gfx/size.h"
     14 #include "ui/views/controls/button/button.h"
     15 #include "ui/views/window/non_client_view.h"
     16 
     17 class SkRegion;
     18 
     19 namespace gfx {
     20 class Canvas;
     21 class Point;
     22 }
     23 
     24 namespace ui {
     25 class Event;
     26 }
     27 
     28 namespace views {
     29 class ImageButton;
     30 class Widget;
     31 }
     32 
     33 namespace apps {
     34 
     35 class NativeAppWindow;
     36 
     37 // A frameless or non-Ash, non-panel NonClientFrameView for app windows.
     38 class AppWindowFrameView : public views::NonClientFrameView,
     39                            public views::ButtonListener {
     40  public:
     41   static const char kViewClassName[];
     42 
     43   // AppWindowFrameView is used to draw frames for app windows when a non
     44   // standard frame is needed. This occurs if there is no frame needed, or if
     45   // there is a frame color.
     46   // If |draw_frame| is true, the view draws its own window title area and
     47   // controls, using |frame_color|. If |draw_frame| is not true, no frame is
     48   // drawn.
     49   // TODO(benwells): Refactor this to split out frameless and colored frame
     50   // views. See http://crbug.com/359432.
     51   AppWindowFrameView(views::Widget* widget,
     52                      NativeAppWindow* window,
     53                      bool draw_frame,
     54                      const SkColor& active_frame_color,
     55                      const SkColor& inactive_frame_color);
     56   virtual ~AppWindowFrameView();
     57 
     58   void Init();
     59 
     60   void SetResizeSizes(int resize_inside_bounds_size,
     61                       int resize_outside_bounds_size,
     62                       int resize_area_corner_size);
     63   int resize_inside_bounds_size() const {
     64     return resize_inside_bounds_size_;
     65   };
     66 
     67  private:
     68   // views::NonClientFrameView implementation.
     69   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
     70   virtual gfx::Rect GetWindowBoundsForClientBounds(
     71       const gfx::Rect& client_bounds) const OVERRIDE;
     72   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
     73   virtual void GetWindowMask(const gfx::Size& size,
     74                              gfx::Path* window_mask) OVERRIDE;
     75   virtual void ResetWindowControls() OVERRIDE {}
     76   virtual void UpdateWindowIcon() OVERRIDE {}
     77   virtual void UpdateWindowTitle() OVERRIDE {}
     78 
     79   // views::View implementation.
     80   virtual gfx::Size GetPreferredSize() const OVERRIDE;
     81   virtual void Layout() OVERRIDE;
     82   virtual const char* GetClassName() const OVERRIDE;
     83   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
     84   virtual gfx::Size GetMinimumSize() const OVERRIDE;
     85   virtual gfx::Size GetMaximumSize() const OVERRIDE;
     86 
     87   // views::ButtonListener implementation.
     88   virtual void ButtonPressed(views::Button* sender,
     89                              const ui::Event& event) OVERRIDE;
     90 
     91   // Some button images we use depend on the color of the frame. This
     92   // will set these images based on the color of the frame.
     93   void SetButtonImagesForFrame();
     94 
     95   // Return the current frame color based on the active state of the window.
     96   SkColor CurrentFrameColor();
     97 
     98   views::Widget* widget_;
     99   NativeAppWindow* window_;
    100   bool draw_frame_;
    101   SkColor active_frame_color_;
    102   SkColor inactive_frame_color_;
    103   views::ImageButton* close_button_;
    104   views::ImageButton* maximize_button_;
    105   views::ImageButton* restore_button_;
    106   views::ImageButton* minimize_button_;
    107 
    108   // Allow resize for clicks this many pixels inside the bounds.
    109   int resize_inside_bounds_size_;
    110 
    111   // Allow resize for clicks  this many pixels outside the bounds.
    112   int resize_outside_bounds_size_;
    113 
    114   // Size in pixels of the lower-right corner resize handle.
    115   int resize_area_corner_size_;
    116 
    117   DISALLOW_COPY_AND_ASSIGN(AppWindowFrameView);
    118 };
    119 
    120 }  // namespace apps
    121 
    122 #endif  // APPS_UI_VIEWS_APP_WINDOW_FRAME_VIEW_H_
    123