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/*
* 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"
#if ENABLE(VIDEO)
#include "HTMLVideoElement.h"
#include "Attribute.h"
#include "CSSPropertyNames.h"
#include "Chrome.h"
#include "ChromeClient.h"
#include "Document.h"
#include "Frame.h"
#include "HTMLImageLoader.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "Page.h"
#include "RenderImage.h"
#include "RenderVideo.h"
#include "ScriptController.h"
#include "Settings.h"
namespace WebCore {
using namespace HTMLNames;
inline HTMLVideoElement::HTMLVideoElement(const QualifiedName& tagName, Document& document, bool createdByParser)
: HTMLMediaElement(tagName, document, createdByParser)
{
ASSERT(hasTagName(videoTag));
setHasCustomStyleResolveCallbacks();
if (document.settings())
m_defaultPosterURL = document.settings()->defaultVideoPosterURL();
}
PassRefPtr<HTMLVideoElement> HTMLVideoElement::create(const QualifiedName& tagName, Document& document, bool createdByParser)
{
RefPtr<HTMLVideoElement> videoElement(adoptRef(new HTMLVideoElement(tagName, document, createdByParser)));
videoElement->suspendIfNeeded();
return videoElement.release();
}
bool HTMLVideoElement::rendererIsNeeded(const RenderStyle& style)
{
return HTMLElement::rendererIsNeeded(style);
}
RenderElement* HTMLVideoElement::createRenderer(PassRef<RenderStyle> style)
{
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
if (shouldUseVideoPluginProxy())
return HTMLMediaElement::createRenderer(arena, style);
#endif
return new RenderVideo(*this, std::move(style));
}
void HTMLVideoElement::didAttachRenderers()
{
HTMLMediaElement::didAttachRenderers();
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
if (!shouldUseVideoPluginProxy()) {
#endif
updateDisplayState();
if (shouldDisplayPosterImage()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElement();
if (renderer())
toRenderImage(renderer())->imageResource()->setCachedImage(m_imageLoader->image());
}
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
}
#endif
}
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 ENABLE(PLUGIN_PROXY_FOR_VIDEO)
if (shouldUseVideoPluginProxy())
return;
#endif
if (shouldDisplayPosterImage()) {
if (!m_imageLoader)
m_imageLoader = adoptPtr(new HTMLImageLoader(this));
m_imageLoader->updateFromElementIgnoringPreviousError();
} else {
if (renderer())
toRenderImage(renderer())->imageResource()->setCachedImage(0);
}
} else
HTMLMediaElement::parseAttribute(name, value);
}
bool HTMLVideoElement::supportsFullscreen() const
{
Page* page = document().page();
if (!page)
return false;
if (!player() || !player()->supportsFullscreen())
return false;
#if ENABLE(FULLSCREEN_API)
// If the full screen API is enabled and is supported for the current element
// do not require that the player has a video track to enter full screen.
if (page->chrome().client().supportsFullScreenForElement(this, false))
return true;
#endif
if (!player()->hasVideo())
return false;
return page->chrome().client().supportsFullscreenForNode(this);
}
unsigned HTMLVideoElement::videoWidth() const
{
if (!player())
return 0;
return player()->naturalSize().width();
}
unsigned HTMLVideoElement::videoHeight() const
{
if (!player())
return 0;
return player()->naturalSize().height();
}
unsigned HTMLVideoElement::width() const
{
bool ok;
unsigned w = getAttribute(widthAttr).string().toUInt(&ok);
return ok ? w : 0;
}
unsigned HTMLVideoElement::height() const
{
bool ok;
unsigned h = getAttribute(heightAttr).string().toUInt(&ok);
return ok ? h : 0;
}
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();
URL 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.
if (mode == Video) {
if (oldMode != Video && player())
player()->prepareForRendering();
if (!hasAvailableVideoFrame())
mode = PosterWaitingForVideo;
}
} else if (oldMode != Video && player())
player()->prepareForRendering();
HTMLMediaElement::setDisplayMode(mode);
if (player() && player()->canLoadPoster()) {
bool canLoad = true;
if (!poster.isEmpty()) {
if (Frame* frame = document().frame())
canLoad = frame->loader().willLoadMediaElementURL(poster);
}
if (canLoad)
player()->setPoster(poster);
}
#if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
if (shouldUseVideoPluginProxy())
return;
#endif
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)
{
MediaPlayer* player = HTMLMediaElement::player();
if (!player)
return;
player->setVisible(true); // Make player visible or it won't draw.
player->paintCurrentFrameInContext(context, destRect);
}
bool HTMLVideoElement::copyVideoTextureToPlatformTexture(GraphicsContext3D* context, Platform3DObject texture, GC3Dint level, GC3Denum type, GC3Denum internalFormat, bool premultiplyAlpha, bool flipY)
{
if (!player())
return false;
return player()->copyVideoTextureToPlatformTexture(context, texture, level, type, internalFormat, premultiplyAlpha, flipY);
}
bool HTMLVideoElement::hasAvailableVideoFrame() const
{
if (!player())
return false;
return player()->hasVideo() && player()->hasAvailableVideoFrame();
}
PassNativeImagePtr HTMLVideoElement::nativeImageForCurrentTime()
{
if (!player())
return 0;
return player()->nativeImageForCurrentTime();
}
void HTMLVideoElement::webkitEnterFullscreen(ExceptionCode& ec)
{
if (isFullscreen())
return;
// Generate an exception if this isn't called in response to a user gesture, or if the
// element does not support fullscreen.
if ((userGestureRequiredForFullscreen() && !ScriptController::processingUserGesture()) || !supportsFullscreen()) {
ec = INVALID_STATE_ERR;
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);
}
#if ENABLE(MEDIA_STATISTICS)
unsigned HTMLVideoElement::webkitDecodedFrameCount() const
{
if (!player())
return 0;
return player()->decodedFrameCount();
}
unsigned HTMLVideoElement::webkitDroppedFrameCount() const
{
if (!player())
return 0;
return player()->droppedFrameCount();
}
#endif
URL HTMLVideoElement::posterImageURL() const
{
String url = stripLeadingAndTrailingHTMLSpaces(imageSourceURL());
if (url.isEmpty())
return URL();
return document().completeURL(url);
}
}
#endif