1 files changed, 203 insertions, 0 deletions
diff --git a/dom/html/HTMLVideoElement.h b/dom/html/HTMLVideoElement.h
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+++ b/dom/html/HTMLVideoElement.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_HTMLVideoElement_h
+#define mozilla_dom_HTMLVideoElement_h
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/HTMLMediaElement.h"
+#include "mozilla/StaticPrefs_media.h"
+#include "Units.h"
+
+namespace mozilla {
+
+class FrameStatistics;
+
+namespace dom {
+
+class WakeLock;
+class VideoPlaybackQuality;
+
+class HTMLVideoElement final : public HTMLMediaElement {
+  class SecondaryVideoOutput;
+
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLVideoElement, HTMLMediaElement)
+
+  typedef mozilla::dom::NodeInfo NodeInfo;
+
+  explicit HTMLVideoElement(already_AddRefed<NodeInfo>&& aNodeInfo);
+
+  NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLVideoElement, video)
+
+  using HTMLMediaElement::GetPaused;
+
+  void Invalidate(ImageSizeChanged aImageSizeChanged,
+                  const Maybe<nsIntSize>& aNewIntrinsicSize,
+                  ForceInvalidate aForceInvalidate) override;
+
+  virtual bool IsVideo() const override { return true; }
+
+  virtual bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
+                              const nsAString& aValue,
+                              nsIPrincipal* aMaybeScriptedPrincipal,
+                              nsAttrValue& aResult) override;
+  NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
+
+  nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
+
+  nsresult Clone(NodeInfo*, nsINode** aResult) const override;
+
+  void UnbindFromTree(bool aNullParent = true) override;
+
+  mozilla::Maybe<mozilla::CSSIntSize> GetVideoSize() const;
+
+  void UpdateMediaSize(const nsIntSize& aSize) override;
+
+  nsresult SetAcceptHeader(nsIHttpChannel* aChannel) override;
+
+  // Element
+  bool IsInteractiveHTMLContent() const override;
+
+  // WebIDL
+
+  uint32_t Width() const {
+    return GetDimensionAttrAsUnsignedInt(nsGkAtoms::width, 0);
+  }
+
+  void SetWidth(uint32_t aValue, ErrorResult& aRv) {
+    SetUnsignedIntAttr(nsGkAtoms::width, aValue, 0, aRv);
+  }
+
+  uint32_t Height() const {
+    return GetDimensionAttrAsUnsignedInt(nsGkAtoms::height, 0);
+  }
+
+  void SetHeight(uint32_t aValue, ErrorResult& aRv) {
+    SetUnsignedIntAttr(nsGkAtoms::height, aValue, 0, aRv);
+  }
+
+  uint32_t VideoWidth();
+
+  uint32_t VideoHeight();
+
+  VideoRotation RotationDegrees() const { return mMediaInfo.mVideo.mRotation; }
+
+  bool HasAlpha() const { return mMediaInfo.mVideo.HasAlpha(); }
+
+  void GetPoster(nsAString& aValue) {
+    GetURIAttr(nsGkAtoms::poster, nullptr, aValue);
+  }
+  void SetPoster(const nsAString& aValue, ErrorResult& aRv) {
+    SetHTMLAttr(nsGkAtoms::poster, aValue, aRv);
+  }
+
+  uint32_t MozParsedFrames() const;
+
+  uint32_t MozDecodedFrames() const;
+
+  uint32_t MozPresentedFrames();
+
+  uint32_t MozPaintedFrames();
+
+  double MozFrameDelay();
+
+  bool MozHasAudio() const;
+
+  already_AddRefed<VideoPlaybackQuality> GetVideoPlaybackQuality();
+
+  already_AddRefed<Promise> CloneElementVisually(HTMLVideoElement& aTarget,
+                                                 ErrorResult& rv);
+
+  void StopCloningElementVisually();
+
+  bool IsCloningElementVisually() const { return !!mVisualCloneTarget; }
+
+  void OnSecondaryVideoContainerInstalled(
+      const RefPtr<VideoFrameContainer>& aSecondaryContainer) override;
+
+  void OnSecondaryVideoOutputFirstFrameRendered();
+
+  void OnVisibilityChange(Visibility aNewVisibility) override;
+
+  bool DisablePictureInPicture() const {
+    return GetBoolAttr(nsGkAtoms::disablepictureinpicture);
+  }
+
+  void SetDisablePictureInPicture(bool aValue, ErrorResult& aError) {
+    SetHTMLBoolAttr(nsGkAtoms::disablepictureinpicture, aValue, aError);
+  }
+
+ protected:
+  virtual ~HTMLVideoElement();
+
+  virtual JSObject* WrapNode(JSContext* aCx,
+                             JS::Handle<JSObject*> aGivenProto) override;
+
+  /**
+   * We create video wakelock when the video is playing and release it when
+   * video pauses. Note, the actual platform wakelock will automatically be
+   * released when the page is in the background, so we don't need to check the
+   * video's visibility by ourselves.
+   */
+  void WakeLockRelease() override;
+  void UpdateWakeLock() override;
+
+  bool ShouldCreateVideoWakeLock() const;
+  void CreateVideoWakeLockIfNeeded();
+  void ReleaseVideoWakeLockIfExists();
+
+  gfx::IntSize GetVideoIntrinsicDimensions();
+
+  RefPtr<WakeLock> mScreenWakeLock;
+
+  WatchManager<HTMLVideoElement> mVideoWatchManager;
+
+ private:
+  bool SetVisualCloneTarget(
+      RefPtr<HTMLVideoElement> aVisualCloneTarget,
+      RefPtr<Promise> aVisualCloneTargetPromise = nullptr);
+  bool SetVisualCloneSource(RefPtr<HTMLVideoElement> aVisualCloneSource);
+
+  // For video elements, we can clone the frames being played to
+  // a secondary video element. If we're doing that, we hold a
+  // reference to the video element we're cloning to in
+  // mVisualCloneSource.
+  //
+  // Please don't set this to non-nullptr values directly - use
+  // SetVisualCloneTarget() instead.
+  RefPtr<HTMLVideoElement> mVisualCloneTarget;
+  // Set when mVisualCloneTarget is set, and resolved (and unset) when the
+  // secondary container has been applied to the underlying resource.
+  RefPtr<Promise> mVisualCloneTargetPromise;
+  // Set when beginning to clone visually and we are playing a MediaStream.
+  // This is the output wrapping the VideoFrameContainer of mVisualCloneTarget,
+  // so we can render its first frame, and resolve mVisualCloneTargetPromise as
+  // we do.
+  RefPtr<FirstFrameVideoOutput> mSecondaryVideoOutput;
+  // If this video is the clone target of another video element,
+  // then mVisualCloneSource points to that originating video
+  // element.
+  //
+  // Please don't set this to non-nullptr values directly - use
+  // SetVisualCloneTarget() instead.
+  RefPtr<HTMLVideoElement> mVisualCloneSource;
+
+  static void MapAttributesIntoRule(MappedDeclarationsBuilder&);
+
+  static bool IsVideoStatsEnabled();
+  double TotalPlayTime() const;
+
+  virtual void MaybeBeginCloningVisually() override;
+  void EndCloningVisually();
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_HTMLVideoElement_h