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