| /* |
| * 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 "config.h" |
| #include "core/html/HTMLVideoElement.h" |
| |
| #include "bindings/v8/ExceptionState.h" |
| #include "core/CSSPropertyNames.h" |
| #include "core/HTMLNames.h" |
| #include "core/dom/Attribute.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/ExceptionCode.h" |
| #include "core/dom/shadow/ShadowRoot.h" |
| #include "core/frame/Settings.h" |
| #include "core/html/HTMLImageLoader.h" |
| #include "core/html/canvas/CanvasRenderingContext.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/rendering/RenderImage.h" |
| #include "core/rendering/RenderVideo.h" |
| #include "platform/UserGestureIndicator.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| inline HTMLVideoElement::HTMLVideoElement(Document& document) |
| : HTMLMediaElement(videoTag, document) |
| { |
| ScriptWrappable::init(this); |
| if (document.settings()) |
| m_defaultPosterURL = AtomicString(document.settings()->defaultVideoPosterURL()); |
| } |
| |
| PassRefPtrWillBeRawPtr<HTMLVideoElement> HTMLVideoElement::create(Document& document) |
| { |
| RefPtrWillBeRawPtr<HTMLVideoElement> video = adoptRefWillBeNoop(new HTMLVideoElement(document)); |
| video->ensureUserAgentShadowRoot(); |
| video->suspendIfNeeded(); |
| return video.release(); |
| } |
| |
| void HTMLVideoElement::trace(Visitor* visitor) |
| { |
| visitor->trace(m_imageLoader); |
| HTMLMediaElement::trace(visitor); |
| } |
| |
| bool HTMLVideoElement::rendererIsNeeded(const RenderStyle& style) |
| { |
| return HTMLElement::rendererIsNeeded(style); |
| } |
| |
| RenderObject* HTMLVideoElement::createRenderer(RenderStyle*) |
| { |
| return new RenderVideo(this); |
| } |
| |
| void HTMLVideoElement::attach(const AttachContext& context) |
| { |
| HTMLMediaElement::attach(context); |
| |
| updateDisplayState(); |
| if (shouldDisplayPosterImage()) { |
| if (!m_imageLoader) |
| m_imageLoader = HTMLImageLoader::create(this); |
| m_imageLoader->updateFromElement(); |
| if (renderer()) |
| toRenderImage(renderer())->imageResource()->setImageResource(m_imageLoader->image()); |
| } |
| } |
| |
| void HTMLVideoElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style) |
| { |
| if (name == widthAttr) |
| addHTMLLengthToStyle(style, CSSPropertyWidth, value); |
| else if (name == heightAttr) |
| addHTMLLengthToStyle(style, CSSPropertyHeight, value); |
| else |
| HTMLMediaElement::collectStyleForPresentationAttribute(name, value, style); |
| } |
| |
| bool HTMLVideoElement::isPresentationAttribute(const QualifiedName& name) const |
| { |
| if (name == widthAttr || name == heightAttr) |
| return true; |
| return HTMLMediaElement::isPresentationAttribute(name); |
| } |
| |
| void HTMLVideoElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (name == posterAttr) { |
| // Force a poster recalc by setting m_displayMode to Unknown directly before calling updateDisplayState. |
| HTMLMediaElement::setDisplayMode(Unknown); |
| updateDisplayState(); |
| if (shouldDisplayPosterImage()) { |
| if (!m_imageLoader) |
| m_imageLoader = HTMLImageLoader::create(this); |
| m_imageLoader->updateFromElementIgnoringPreviousError(); |
| } else { |
| if (renderer()) |
| toRenderImage(renderer())->imageResource()->setImageResource(0); |
| } |
| // Notify the player when the poster image URL changes. |
| if (player()) |
| player()->setPoster(posterImageURL()); |
| } else |
| HTMLMediaElement::parseAttribute(name, value); |
| } |
| |
| bool HTMLVideoElement::supportsFullscreen() const |
| { |
| if (!document().page()) |
| return false; |
| |
| if (!player()) |
| return false; |
| |
| return true; |
| } |
| |
| unsigned HTMLVideoElement::videoWidth() const |
| { |
| if (!webMediaPlayer()) |
| return 0; |
| return webMediaPlayer()->naturalSize().width; |
| } |
| |
| unsigned HTMLVideoElement::videoHeight() const |
| { |
| if (!webMediaPlayer()) |
| return 0; |
| return webMediaPlayer()->naturalSize().height; |
| } |
| |
| bool HTMLVideoElement::isURLAttribute(const Attribute& attribute) const |
| { |
| return attribute.name() == posterAttr || HTMLMediaElement::isURLAttribute(attribute); |
| } |
| |
| const AtomicString HTMLVideoElement::imageSourceURL() const |
| { |
| const AtomicString& url = getAttribute(posterAttr); |
| if (!stripLeadingAndTrailingHTMLSpaces(url).isEmpty()) |
| return url; |
| return m_defaultPosterURL; |
| } |
| |
| void HTMLVideoElement::setDisplayMode(DisplayMode mode) |
| { |
| DisplayMode oldMode = displayMode(); |
| KURL poster = posterImageURL(); |
| |
| if (!poster.isEmpty()) { |
| // We have a poster path, but only show it until the user triggers display by playing or seeking and the |
| // media engine has something to display. |
| // Don't show the poster if there is a seek operation or |
| // the video has restarted because of loop attribute |
| if (mode == Video && oldMode == Poster && !hasAvailableVideoFrame()) |
| mode = PosterWaitingForVideo; |
| } |
| |
| HTMLMediaElement::setDisplayMode(mode); |
| |
| if (renderer() && displayMode() != oldMode) |
| renderer()->updateFromElement(); |
| } |
| |
| void HTMLVideoElement::updateDisplayState() |
| { |
| if (posterImageURL().isEmpty()) |
| setDisplayMode(Video); |
| else if (displayMode() < Poster) |
| setDisplayMode(Poster); |
| } |
| |
| void HTMLVideoElement::paintCurrentFrameInContext(GraphicsContext* context, const IntRect& destRect) const |
| { |
| MediaPlayer* player = HTMLMediaElement::player(); |
| if (!player) |
| return; |
| player->paint(context, destRect); |
| } |
| |
| bool HTMLVideoElement::copyVideoTextureToPlatformTexture(blink::WebGraphicsContext3D* context, Platform3DObject texture, GLint level, GLenum type, GLenum internalFormat, bool premultiplyAlpha, bool flipY) |
| { |
| if (!player()) |
| return false; |
| return player()->copyVideoTextureToPlatformTexture(context, texture, level, type, internalFormat, premultiplyAlpha, flipY); |
| } |
| |
| bool HTMLVideoElement::hasAvailableVideoFrame() const |
| { |
| if (!webMediaPlayer()) |
| return false; |
| |
| return webMediaPlayer()->hasVideo() && webMediaPlayer()->readyState() >= blink::WebMediaPlayer::ReadyStateHaveCurrentData; |
| } |
| |
| void HTMLVideoElement::webkitEnterFullscreen(ExceptionState& exceptionState) |
| { |
| if (isFullscreen()) |
| return; |
| |
| if (!supportsFullscreen()) { |
| exceptionState.throwDOMException(InvalidStateError, "This element does not support fullscreen mode."); |
| return; |
| } |
| |
| enterFullscreen(); |
| } |
| |
| void HTMLVideoElement::webkitExitFullscreen() |
| { |
| if (isFullscreen()) |
| exitFullscreen(); |
| } |
| |
| bool HTMLVideoElement::webkitSupportsFullscreen() |
| { |
| return supportsFullscreen(); |
| } |
| |
| bool HTMLVideoElement::webkitDisplayingFullscreen() |
| { |
| return isFullscreen(); |
| } |
| |
| void HTMLVideoElement::didMoveToNewDocument(Document& oldDocument) |
| { |
| if (m_imageLoader) |
| m_imageLoader->elementDidMoveToNewDocument(); |
| HTMLMediaElement::didMoveToNewDocument(oldDocument); |
| } |
| |
| unsigned HTMLVideoElement::webkitDecodedFrameCount() const |
| { |
| if (!webMediaPlayer()) |
| return 0; |
| |
| return webMediaPlayer()->decodedFrameCount(); |
| } |
| |
| unsigned HTMLVideoElement::webkitDroppedFrameCount() const |
| { |
| if (!webMediaPlayer()) |
| return 0; |
| |
| return webMediaPlayer()->droppedFrameCount(); |
| } |
| |
| KURL HTMLVideoElement::posterImageURL() const |
| { |
| String url = stripLeadingAndTrailingHTMLSpaces(imageSourceURL()); |
| if (url.isEmpty()) |
| return KURL(); |
| return document().completeURL(url); |
| } |
| |
| KURL HTMLVideoElement::mediaPlayerPosterURL() |
| { |
| return posterImageURL(); |
| } |
| |
| PassRefPtr<Image> HTMLVideoElement::getSourceImageForCanvas(SourceImageMode mode, SourceImageStatus* status) const |
| { |
| if (!hasAvailableVideoFrame()) { |
| *status = InvalidSourceImageStatus; |
| return nullptr; |
| } |
| |
| IntSize intrinsicSize(videoWidth(), videoHeight()); |
| OwnPtr<ImageBuffer> imageBuffer = ImageBuffer::create(intrinsicSize); |
| if (!imageBuffer) { |
| *status = InvalidSourceImageStatus; |
| return nullptr; |
| } |
| |
| paintCurrentFrameInContext(imageBuffer->context(), IntRect(IntPoint(0, 0), intrinsicSize)); |
| |
| *status = NormalSourceImageStatus; |
| return imageBuffer->copyImage(mode == CopySourceImageIfVolatile ? CopyBackingStore : DontCopyBackingStore, Unscaled); |
| } |
| |
| bool HTMLVideoElement::wouldTaintOrigin(SecurityOrigin* destinationSecurityOrigin) const |
| { |
| return !hasSingleSecurityOrigin() || (!(webMediaPlayer() && webMediaPlayer()->didPassCORSAccessCheck()) && destinationSecurityOrigin->taintsCanvas(currentSrc())); |
| } |
| |
| FloatSize HTMLVideoElement::sourceSize() const |
| { |
| return FloatSize(videoWidth(), videoHeight()); |
| } |
| |
| } |