| /* |
| * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/core/layout/layout_video.h" |
| |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/html/media/html_video_element.h" |
| #include "third_party/blink/renderer/core/paint/video_painter.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| const float kInitEffectZoom = 1.0f; |
| |
| } // namespace |
| |
| LayoutVideo::LayoutVideo(HTMLVideoElement* video) : LayoutMedia(video) { |
| SetIntrinsicSize(CalculateIntrinsicSize(kInitEffectZoom)); |
| } |
| |
| LayoutVideo::~LayoutVideo() = default; |
| |
| LayoutSize LayoutVideo::DefaultSize() { |
| return LayoutSize(kDefaultWidth, kDefaultHeight); |
| } |
| |
| void LayoutVideo::IntrinsicSizeChanged() { |
| NOT_DESTROYED(); |
| if (VideoElement()->IsShowPosterFlagSet()) |
| LayoutMedia::IntrinsicSizeChanged(); |
| UpdateIntrinsicSize(/* is_in_layout */ false); |
| } |
| |
| void LayoutVideo::UpdateIntrinsicSize(bool is_in_layout) { |
| NOT_DESTROYED(); |
| LayoutSize size = CalculateIntrinsicSize(StyleRef().EffectiveZoom()); |
| |
| // Never set the element size to zero when in a media document. |
| if (size.IsEmpty() && GetNode()->ownerDocument() && |
| GetNode()->ownerDocument()->IsMediaDocument()) |
| return; |
| |
| if (size == IntrinsicSize()) |
| return; |
| |
| SetIntrinsicSize(size); |
| SetIntrinsicLogicalWidthsDirty(); |
| if (!is_in_layout) { |
| SetNeedsLayoutAndFullPaintInvalidation( |
| layout_invalidation_reason::kSizeChanged); |
| } |
| } |
| |
| LayoutSize LayoutVideo::CalculateIntrinsicSize(float scale) { |
| NOT_DESTROYED(); |
| HTMLVideoElement* video = VideoElement(); |
| DCHECK(video); |
| |
| if (RuntimeEnabledFeatures::ExperimentalPoliciesEnabled()) { |
| if (video->IsDefaultIntrinsicSize()) { |
| LayoutSize size = DefaultSize(); |
| size.Scale(scale); |
| return size; |
| } |
| } |
| |
| auto display_mode = GetDisplayMode(); |
| |
| // Special case: If the poster image is the "default poster image", we should |
| // NOT use that for calculating intrinsic size. |
| // TODO(1190335): Remove this once default poster image is removed |
| if (display_mode == kPoster && video->IsDefaultPosterImageURL()) { |
| display_mode = kVideo; |
| } |
| |
| switch (display_mode) { |
| // This implements the intrinsic width/height calculation from: |
| // https://html.spec.whatwg.org/#the-video-element:dimension-attributes:~:text=The%20intrinsic%20width%20of%20a%20video%20element's%20playback%20area |
| // If the video playback area is currently represented by the poster image, |
| // the intrinsic width and height are that of the poster image. |
| case kPoster: |
| if (!cached_image_size_.IsEmpty() && !ImageResource()->ErrorOccurred()) { |
| return cached_image_size_; |
| } |
| break; |
| |
| // Otherwise, the intrinsic width is that of the video. |
| case kVideo: |
| if (const auto* player = MediaElement()->GetWebMediaPlayer()) { |
| IntSize size(player->NaturalSize()); |
| if (!size.IsEmpty()) { |
| LayoutSize layout_size = LayoutSize(size); |
| layout_size.Scale(scale); |
| return layout_size; |
| } |
| } |
| break; |
| } |
| |
| LayoutSize size = DefaultSize(); |
| size.Scale(scale); |
| return size; |
| } |
| |
| void LayoutVideo::ImageChanged(WrappedImagePtr new_image, |
| CanDeferInvalidation defer) { |
| NOT_DESTROYED(); |
| LayoutMedia::ImageChanged(new_image, defer); |
| |
| // Cache the image intrinsic size so we can continue to use it to draw the |
| // image correctly even if we know the video intrinsic size but aren't able to |
| // draw video frames yet (we don't want to scale the poster to the video size |
| // without keeping aspect ratio). We do not need to check |
| // |ShouldDisplayPosterImage| because the image can be ready before we find |
| // out we actually need it. |
| cached_image_size_ = IntrinsicSize(); |
| |
| // The intrinsic size is now that of the image, but in case we already had the |
| // intrinsic size of the video we call this here to restore the video size. |
| UpdateIntrinsicSize(/* is_in_layout */ false); |
| } |
| |
| LayoutVideo::DisplayMode LayoutVideo::GetDisplayMode() const { |
| NOT_DESTROYED(); |
| |
| const auto* video = VideoElement(); |
| // If the show-poster-flag is set (or there is no video frame to display) AND |
| // there is a poster image, display that. |
| if ((video->IsShowPosterFlagSet() || !video->HasAvailableVideoFrame()) && |
| !video->PosterImageURL().IsEmpty()) { |
| return kPoster; |
| } |
| // Otherwise, try displaying a video frame. |
| else { |
| return kVideo; |
| } |
| } |
| |
| void LayoutVideo::PaintReplaced(const PaintInfo& paint_info, |
| const PhysicalOffset& paint_offset) const { |
| NOT_DESTROYED(); |
| VideoPainter(*this).PaintReplaced(paint_info, paint_offset); |
| } |
| |
| void LayoutVideo::UpdateLayout() { |
| NOT_DESTROYED(); |
| UpdatePlayer(/* is_in_layout */ true); |
| LayoutMedia::UpdateLayout(); |
| } |
| |
| HTMLVideoElement* LayoutVideo::VideoElement() const { |
| NOT_DESTROYED(); |
| return To<HTMLVideoElement>(GetNode()); |
| } |
| |
| void LayoutVideo::UpdateFromElement() { |
| NOT_DESTROYED(); |
| LayoutMedia::UpdateFromElement(); |
| UpdatePlayer(/* is_in_layout */ false); |
| |
| SetShouldDoFullPaintInvalidation(); |
| } |
| |
| void LayoutVideo::UpdatePlayer(bool is_in_layout) { |
| NOT_DESTROYED(); |
| UpdateIntrinsicSize(is_in_layout); |
| |
| WebMediaPlayer* media_player = MediaElement()->GetWebMediaPlayer(); |
| if (!media_player) |
| return; |
| |
| if (!VideoElement()->InActiveDocument()) |
| return; |
| |
| VideoElement()->SetNeedsCompositingUpdate(); |
| } |
| |
| LayoutUnit LayoutVideo::ComputeReplacedLogicalWidth( |
| ShouldComputePreferred should_compute_preferred) const { |
| NOT_DESTROYED(); |
| return LayoutReplaced::ComputeReplacedLogicalWidth(should_compute_preferred); |
| } |
| |
| LayoutUnit LayoutVideo::ComputeReplacedLogicalHeight( |
| LayoutUnit estimated_used_width) const { |
| NOT_DESTROYED(); |
| return LayoutReplaced::ComputeReplacedLogicalHeight(estimated_used_width); |
| } |
| |
| LayoutUnit LayoutVideo::MinimumReplacedHeight() const { |
| NOT_DESTROYED(); |
| return LayoutReplaced::MinimumReplacedHeight(); |
| } |
| |
| PhysicalRect LayoutVideo::ReplacedContentRect() const { |
| NOT_DESTROYED(); |
| if (GetDisplayMode() == kVideo) { |
| // Video codecs may need to restart from an I-frame when the output is |
| // resized. Round size in advance to avoid 1px snap difference. |
| return PreSnappedRectForPersistentSizing(ComputeObjectFit()); |
| } |
| // If we are displaying the poster image no pre-rounding is needed, but the |
| // size of the image should be used for fitting instead. |
| return ComputeObjectFit(&cached_image_size_); |
| } |
| |
| bool LayoutVideo::SupportsAcceleratedRendering() const { |
| NOT_DESTROYED(); |
| return !!MediaElement()->CcLayer(); |
| } |
| |
| CompositingReasons LayoutVideo::AdditionalCompositingReasons() const { |
| NOT_DESTROYED(); |
| auto* element = To<HTMLMediaElement>(GetNode()); |
| if (element->IsFullscreen() && element->UsesOverlayFullscreenVideo()) |
| return CompositingReason::kVideo; |
| |
| if (GetDisplayMode() == kVideo && SupportsAcceleratedRendering()) |
| return CompositingReason::kVideo; |
| |
| return CompositingReason::kNone; |
| } |
| |
| } // namespace blink |