extensions/components/native_app_window/native_app_window_views.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 EXTENSIONS_COMPONENTS_NATIVE_APP_WINDOW_NATIVE_APP_WINDOW_VIEWS_H_
   6 #define EXTENSIONS_COMPONENTS_NATIVE_APP_WINDOW_NATIVE_APP_WINDOW_VIEWS_H_
   7
   8 #include "base/observer_list.h"
   9 #include "content/public/browser/web_contents_observer.h"
  10 #include "extensions/browser/app_window/app_window.h"
  11 #include "extensions/browser/app_window/native_app_window.h"
  12 #include "extensions/browser/app_window/size_constraints.h"
  13 #include "ui/gfx/geometry/rect.h"
  14 #include "ui/views/controls/webview/unhandled_keyboard_event_handler.h"
  15 #include "ui/views/widget/widget.h"
  16 #include "ui/views/widget/widget_delegate.h"
  17 #include "ui/views/widget/widget_observer.h"
  18
  19 class SkRegion;
  20
  21 namespace content {
  22 class BrowserContext;
  23 class RenderViewHost;
  24 class WebContents;
  25 }
  26
  27 namespace extensions {
  28 class Extension;
  29 }
  30
  31 namespace ui {
  32 class MenuModel;
  33 }
  34
  35 namespace views {
  36 class MenuRunner;
  37 class WebView;
  38 }
  39
  40 namespace native_app_window {
  41
  42 // A NativeAppWindow backed by a views::Widget. This class may be used alone
  43 // as a stub or subclassed (for example, ChromeNativeAppWindowViews).
  44 class NativeAppWindowViews : public extensions::NativeAppWindow,
  45                              public content::WebContentsObserver,
  46                              public views::WidgetDelegateView,
  47                              public views::WidgetObserver {
  48  public:
  49   NativeAppWindowViews();
  50   ~NativeAppWindowViews() override;
  51   void Init(extensions::AppWindow* app_window,
  52             const extensions::AppWindow::CreateParams& create_params);
  53
  54   // Signal that CanHaveTransparentBackground has changed.
  55   void OnCanHaveAlphaEnabledChanged();
  56
  57   extensions::AppWindow* app_window() { return app_window_; }
  58   const extensions::AppWindow* app_window() const { return app_window_; }
  59
  60   views::WebView* web_view() { return web_view_; }
  61   const views::WebView* web_view() const { return web_view_; }
  62
  63   views::Widget* widget() { return widget_; }
  64   const views::Widget* widget() const { return widget_; }
  65
  66   void set_window_for_testing(views::Widget* window) { widget_ = window; }
  67   void set_web_view_for_testing(views::WebView* view) { web_view_ = view; }
  68
  69  protected:
  70   // Initializes |widget_| for |app_window|.
  71   virtual void InitializeWindow(
  72       extensions::AppWindow* app_window,
  73       const extensions::AppWindow::CreateParams& create_params);
  74
  75   // ui::BaseWindow implementation.
  76   bool IsActive() const override;
  77   bool IsMaximized() const override;
  78   bool IsMinimized() const override;
  79   bool IsFullscreen() const override;
  80   gfx::NativeWindow GetNativeWindow() const override;
  81   gfx::Rect GetRestoredBounds() const override;
  82   ui::WindowShowState GetRestoredState() const override;
  83   gfx::Rect GetBounds() const override;
  84   void Show() override;
  85   void ShowInactive() override;
  86   void Hide() override;
  87   void Close() override;
  88   void Activate() override;
  89   void Deactivate() override;
  90   void Maximize() override;
  91   void Minimize() override;
  92   void Restore() override;
  93   void SetBounds(const gfx::Rect& bounds) override;
  94   void FlashFrame(bool flash) override;
  95   bool IsAlwaysOnTop() const override;
  96   void SetAlwaysOnTop(bool always_on_top) override;
  97
  98   // WidgetDelegate implementation.
  99   void OnWidgetMove() override;
 100   views::View* GetInitiallyFocusedView() override;
 101   bool CanResize() const override;
 102   bool CanMaximize() const override;
 103   bool CanMinimize() const override;
 104   base::string16 GetWindowTitle() const override;
 105   bool ShouldShowWindowTitle() const override;
 106   bool ShouldShowWindowIcon() const override;
 107   void SaveWindowPlacement(const gfx::Rect& bounds,
 108                            ui::WindowShowState show_state) override;
 109   void DeleteDelegate() override;
 110   views::Widget* GetWidget() override;
 111   const views::Widget* GetWidget() const override;
 112   views::View* GetContentsView() override;
 113   bool ShouldDescendIntoChildForEventHandling(
 114       gfx::NativeView child,
 115       const gfx::Point& location) override;
 116
 117   // WidgetObserver implementation.
 118   void OnWidgetVisibilityChanged(views::Widget* widget, bool visible) override;
 119   void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
 120
 121   // WebContentsObserver implementation.
 122   void RenderViewCreated(content::RenderViewHost* render_view_host) override;
 123   void RenderViewHostChanged(content::RenderViewHost* old_host,
 124                              content::RenderViewHost* new_host) override;
 125
 126   // views::View implementation.
 127   void Layout() override;
 128   void ViewHierarchyChanged(
 129       const ViewHierarchyChangedDetails& details) override;
 130   gfx::Size GetMinimumSize() const override;
 131   gfx::Size GetMaximumSize() const override;
 132   void OnFocus() override;
 133
 134   // NativeAppWindow implementation.
 135   void SetFullscreen(int fullscreen_types) override;
 136   bool IsFullscreenOrPending() const override;
 137   void UpdateWindowIcon() override;
 138   void UpdateWindowTitle() override;
 139   void UpdateDraggableRegions(
 140       const std::vector<extensions::DraggableRegion>& regions) override;
 141   SkRegion* GetDraggableRegion() override;
 142   void UpdateShape(scoped_ptr<SkRegion> region) override;
 143   void HandleKeyboardEvent(
 144       const content::NativeWebKeyboardEvent& event) override;
 145   bool IsFrameless() const override;
 146   bool HasFrameColor() const override;
 147   SkColor ActiveFrameColor() const override;
 148   SkColor InactiveFrameColor() const override;
 149   gfx::Insets GetFrameInsets() const override;
 150   void HideWithApp() override;
 151   void ShowWithApp() override;
 152   gfx::Size GetContentMinimumSize() const override;
 153   gfx::Size GetContentMaximumSize() const override;
 154   void SetContentSizeConstraints(const gfx::Size& min_size,
 155                                  const gfx::Size& max_size) override;
 156   bool CanHaveAlphaEnabled() const override;
 157   void SetVisibleOnAllWorkspaces(bool always_visible) override;
 158
 159   // web_modal::WebContentsModalDialogHost implementation.
 160   gfx::NativeView GetHostView() const override;
 161   gfx::Point GetDialogPosition(const gfx::Size& size) override;
 162   gfx::Size GetMaximumDialogSize() override;
 163   void AddObserver(web_modal::ModalDialogHostObserver* observer) override;
 164   void RemoveObserver(web_modal::ModalDialogHostObserver* observer) override;
 165
 166  private:
 167   // Informs modal dialogs that they need to update their positions.
 168   void OnViewWasResized();
 169
 170   extensions::AppWindow* app_window_;  // Not owned.
 171   views::WebView* web_view_;
 172   views::Widget* widget_;
 173
 174   scoped_ptr<SkRegion> draggable_region_;
 175
 176   bool frameless_;
 177   bool resizable_;
 178   extensions::SizeConstraints size_constraints_;
 179
 180   views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
 181
 182   base::ObserverList<web_modal::ModalDialogHostObserver> observer_list_;
 183
 184   DISALLOW_COPY_AND_ASSIGN(NativeAppWindowViews);
 185 };
 186
 187 }  // namespace native_app_window
 188
 189 #endif  // EXTENSIONS_COMPONENTS_NATIVE_APP_WINDOW_NATIVE_APP_WINDOW_VIEWS_H_