chrome/browser/ui/cocoa/apps/native_app_window_cocoa.h

   1 // Copyright 2013 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_COCOA_APPS_NATIVE_APP_WINDOW_COCOA_H_
   6 #define CHROME_BROWSER_UI_COCOA_APPS_NATIVE_APP_WINDOW_COCOA_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9 #include <vector>
  10
  11 #include "base/mac/scoped_nsobject.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #import "chrome/browser/ui/cocoa/browser_command_executor.h"
  14 #include "content/public/browser/web_contents_observer.h"
  15 #include "extensions/browser/app_window/app_window.h"
  16 #include "extensions/browser/app_window/native_app_window.h"
  17 #include "extensions/browser/app_window/size_constraints.h"
  18 #include "extensions/common/draggable_region.h"
  19 #include "ui/base/accelerators/accelerator_manager.h"
  20 #include "ui/gfx/geometry/rect.h"
  21
  22 @class AppNSWindow;
  23 class ExtensionKeybindingRegistryCocoa;
  24 class NativeAppWindowCocoa;
  25 class SkRegion;
  26
  27 // A window controller for a minimal window to host a web app view. Passes
  28 // Objective-C notifications to the C++ bridge.
  29 @interface NativeAppWindowController : NSWindowController
  30                                       <NSWindowDelegate,
  31                                        BrowserCommandExecutor> {
  32  @private
  33   NativeAppWindowCocoa* appWindow_;  // Weak; owns self.
  34 }
  35
  36 @property(assign, nonatomic) NativeAppWindowCocoa* appWindow;
  37
  38 // Consults the Command Registry to see if this |event| needs to be handled as
  39 // an extension command and returns YES if so (NO otherwise).
  40 // Only extensions with the given |priority| are considered.
  41 - (BOOL)handledByExtensionCommand:(NSEvent*)event
  42     priority:(ui::AcceleratorManager::HandlerPriority)priority;
  43
  44 @end
  45
  46 // Cocoa bridge to AppWindow.
  47 class NativeAppWindowCocoa : public extensions::NativeAppWindow,
  48                              public content::WebContentsObserver {
  49  public:
  50   NativeAppWindowCocoa(extensions::AppWindow* app_window,
  51                        const extensions::AppWindow::CreateParams& params);
  52
  53   // ui::BaseWindow implementation.
  54   bool IsActive() const override;
  55   bool IsMaximized() const override;
  56   bool IsMinimized() const override;
  57   bool IsFullscreen() const override;
  58   gfx::NativeWindow GetNativeWindow() const override;
  59   gfx::Rect GetRestoredBounds() const override;
  60   ui::WindowShowState GetRestoredState() const override;
  61   gfx::Rect GetBounds() const override;
  62   void Show() override;
  63   void ShowInactive() override;
  64   void Hide() override;
  65   void Close() override;
  66   void Activate() override;
  67   void Deactivate() override;
  68   void Maximize() override;
  69   void Minimize() override;
  70   void Restore() override;
  71   void SetBounds(const gfx::Rect& bounds) override;
  72   void FlashFrame(bool flash) override;
  73   bool IsAlwaysOnTop() const override;
  74
  75   // Called when the window is about to be closed.
  76   void WindowWillClose();
  77
  78   // Called when the window is focused.
  79   void WindowDidBecomeKey();
  80
  81   // Called when the window is defocused.
  82   void WindowDidResignKey();
  83
  84   // Called when the window finishes resizing, i.e. after zoom/unzoom, after
  85   // entering/leaving fullscreen, and after a user is done resizing.
  86   void WindowDidFinishResize();
  87
  88   // Called when the window is resized. This is called repeatedly during a
  89   // zoom/unzoom, and while a user is resizing.
  90   void WindowDidResize();
  91
  92   // Called when the window is moved.
  93   void WindowDidMove();
  94
  95   // Called when the window is minimized.
  96   void WindowDidMiniaturize();
  97
  98   // Called when the window is un-minimized.
  99   void WindowDidDeminiaturize();
 100
 101   // Called when the window is zoomed (maximized or de-maximized).
 102   void WindowWillZoom();
 103
 104   // Called when the window enters fullscreen.
 105   void WindowDidEnterFullscreen();
 106
 107   // Called when the window exits fullscreen.
 108   void WindowDidExitFullscreen();
 109
 110   // Called to handle a key event.
 111   bool HandledByExtensionCommand(
 112       NSEvent* event,
 113       ui::AcceleratorManager::HandlerPriority priority);
 114
 115   // Returns true if |point| in local Cocoa coordinate system falls within
 116   // the draggable region.
 117   bool IsWithinDraggableRegion(NSPoint point) const;
 118
 119   NSRect restored_bounds() const { return restored_bounds_; }
 120
 121  protected:
 122   // NativeAppWindow implementation.
 123   void SetFullscreen(int fullscreen_types) override;
 124   bool IsFullscreenOrPending() const override;
 125   void UpdateWindowIcon() override;
 126   void UpdateWindowTitle() override;
 127   void UpdateShape(scoped_ptr<SkRegion> region) override;
 128   void UpdateDraggableRegions(
 129       const std::vector<extensions::DraggableRegion>& regions) override;
 130   SkRegion* GetDraggableRegion() override;
 131   void HandleKeyboardEvent(
 132       const content::NativeWebKeyboardEvent& event) override;
 133   bool IsFrameless() const override;
 134   bool HasFrameColor() const override;
 135   SkColor ActiveFrameColor() const override;
 136   SkColor InactiveFrameColor() const override;
 137   gfx::Insets GetFrameInsets() const override;
 138   bool CanHaveAlphaEnabled() const override;
 139   void SetInterceptAllKeys(bool want_all_keys) override;
 140
 141   // These are used to simulate Mac-style hide/show. Since windows can be hidden
 142   // and shown using the app.window API, this sets is_hidden_with_app_ to
 143   // differentiate the reason a window was hidden.
 144   void ShowWithApp() override;
 145   void HideWithApp() override;
 146   void UpdateShelfMenu() override;
 147   gfx::Size GetContentMinimumSize() const override;
 148   gfx::Size GetContentMaximumSize() const override;
 149   void SetContentSizeConstraints(const gfx::Size& min_size,
 150                                  const gfx::Size& max_size) override;
 151   void SetVisibleOnAllWorkspaces(bool always_visible) override;
 152
 153   // WebContentsObserver implementation.
 154   void RenderViewCreated(content::RenderViewHost* rvh) override;
 155
 156   void SetAlwaysOnTop(bool always_on_top) override;
 157
 158   // WebContentsModalDialogHost implementation.
 159   gfx::NativeView GetHostView() const override;
 160   gfx::Point GetDialogPosition(const gfx::Size& size) override;
 161   gfx::Size GetMaximumDialogSize() override;
 162   void AddObserver(web_modal::ModalDialogHostObserver* observer) override;
 163   void RemoveObserver(web_modal::ModalDialogHostObserver* observer) override;
 164
 165  private:
 166   ~NativeAppWindowCocoa() override;
 167
 168   AppNSWindow* window() const;
 169   content::WebContents* WebContents() const;
 170
 171   // Returns the WindowStyleMask based on the type of window frame.
 172   // This includes NSResizableWindowMask if the window is resizable.
 173   NSUInteger GetWindowStyleMask() const;
 174
 175   void InstallView();
 176   void UninstallView();
 177   void UpdateDraggableRegionViews();
 178
 179   // Cache |restored_bounds_| only if the window is currently restored.
 180   void UpdateRestoredBounds();
 181
 182   // Hides the window unconditionally. Used by Hide and HideWithApp.
 183   void HideWithoutMarkingHidden();
 184
 185   extensions::AppWindow* app_window_;  // weak - AppWindow owns NativeAppWindow.
 186
 187   bool has_frame_;
 188
 189   // Whether this window last became hidden due to a request to hide the entire
 190   // app, e.g. via the dock menu or Cmd+H. This is set by Hide/ShowWithApp.
 191   bool is_hidden_with_app_;
 192
 193   bool is_maximized_;
 194   bool is_fullscreen_;
 195   NSRect restored_bounds_;
 196
 197   bool is_resizable_;
 198   bool shows_resize_controls_;
 199   bool shows_fullscreen_controls_;
 200
 201   extensions::SizeConstraints size_constraints_;
 202
 203   bool has_frame_color_;
 204   SkColor active_frame_color_;
 205   SkColor inactive_frame_color_;
 206
 207   base::scoped_nsobject<NativeAppWindowController> window_controller_;
 208
 209   // For system drag, the whole window is draggable and the non-draggable areas
 210   // have to been explicitly excluded.
 211   std::vector<extensions::DraggableRegion> draggable_regions_;
 212
 213   // The Extension Command Registry used to determine which keyboard events to
 214   // handle.
 215   scoped_ptr<ExtensionKeybindingRegistryCocoa> extension_keybinding_registry_;
 216
 217   DISALLOW_COPY_AND_ASSIGN(NativeAppWindowCocoa);
 218 };
 219
 220 #endif  // CHROME_BROWSER_UI_COCOA_APPS_NATIVE_APP_WINDOW_COCOA_H_