widget/headless/HeadlessCompositorWidget.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef widget_headless_HeadlessCompositorWidget_h
   7 #define widget_headless_HeadlessCompositorWidget_h
   8
   9 #include "mozilla/widget/CompositorWidget.h"
  10
  11 #include "HeadlessWidget.h"
  12
  13 namespace mozilla {
  14 namespace widget {
  15
  16 class HeadlessCompositorWidgetInitData;
  17
  18 class HeadlessCompositorWidget final : public CompositorWidget,
  19                                        public CompositorWidgetDelegate {
  20  public:
  21   HeadlessCompositorWidget(const HeadlessCompositorWidgetInitData& aInitData,
  22                            const layers::CompositorOptions& aOptions,
  23                            HeadlessWidget* aWindow);
  24
  25   void NotifyClientSizeChanged(const LayoutDeviceIntSize& aClientSize);
  26
  27   // CompositorWidget Overrides
  28
  29   uintptr_t GetWidgetKey() override;
  30
  31   LayoutDeviceIntSize GetClientSize() override;
  32
  33   nsIWidget* RealWidget() override;
  34   CompositorWidgetDelegate* AsDelegate() override { return this; }
  35
  36   void ObserveVsync(VsyncObserver* aObserver) override;
  37
  38   // CompositorWidgetDelegate Overrides
  39
  40   HeadlessCompositorWidget* AsHeadlessCompositorWidget() override {
  41     return this;
  42   }
  43
  44  private:
  45   HeadlessWidget* mWidget;
  46
  47   // See GtkCompositorWidget for the justification for this mutex.
  48   DataMutex<LayoutDeviceIntSize> mClientSize;
  49 };
  50
  51 }  // namespace widget
  52 }  // namespace mozilla
  53
  54 #endif  // widget_headless_HeadlessCompositor_h