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/*
* Copyright (C) 2008 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 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 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 "MediaDocument.h"
#include "DocumentLoader.h"
#include "EventNames.h"
#include "Frame.h"
#include "FrameLoaderClient.h"
#include "HTMLEmbedElement.h"
#include "HTMLNames.h"
#include "HTMLVideoElement.h"
#include "KeyboardEvent.h"
#include "MainResourceLoader.h"
#include "NodeList.h"
#include "RawDataDocumentParser.h"
namespace WebCore {
using namespace HTMLNames;
// FIXME: Share more code with PluginDocumentParser.
class MediaDocumentParser : public RawDataDocumentParser {
public:
MediaDocumentParser(Document* document)
: RawDataDocumentParser(document)
, m_mediaElement(0)
{
}
private:
virtual void appendBytes(DocumentWriter*, const char*, int, bool);
void createDocumentStructure();
HTMLMediaElement* m_mediaElement;
};
void MediaDocumentParser::createDocumentStructure()
{
ExceptionCode ec;
RefPtr<Element> rootElement = document()->createElement(htmlTag, false);
document()->appendChild(rootElement, ec);
RefPtr<Element> body = document()->createElement(bodyTag, false);
body->setAttribute(styleAttr, "background-color: rgb(38,38,38);");
rootElement->appendChild(body, ec);
RefPtr<Element> mediaElement = document()->createElement(videoTag, false);
m_mediaElement = static_cast<HTMLVideoElement*>(mediaElement.get());
m_mediaElement->setAttribute(controlsAttr, "");
m_mediaElement->setAttribute(autoplayAttr, "");
m_mediaElement->setAttribute(styleAttr, "margin: auto; position: absolute; top: 0; right: 0; bottom: 0; left: 0;");
m_mediaElement->setAttribute(nameAttr, "media");
m_mediaElement->setSrc(document()->url());
body->appendChild(mediaElement, ec);
Frame* frame = document()->frame();
if (!frame)
return;
frame->loader()->activeDocumentLoader()->mainResourceLoader()->setShouldBufferData(false);
}
void MediaDocumentParser::appendBytes(DocumentWriter*, const char*, int, bool)
{
ASSERT(!m_mediaElement);
if (m_mediaElement)
return;
createDocumentStructure();
finish();
}
MediaDocument::MediaDocument(Frame* frame, const KURL& url)
: HTMLDocument(frame, url)
, m_replaceMediaElementTimer(this, &MediaDocument::replaceMediaElementTimerFired)
{
setParseMode(Compat);
}
MediaDocument::~MediaDocument()
{
ASSERT(!m_replaceMediaElementTimer.isActive());
}
DocumentParser* MediaDocument::createParser()
{
return new MediaDocumentParser(this);
}
void MediaDocument::defaultEventHandler(Event* event)
{
// Match the default Quicktime plugin behavior to allow
// clicking and double-clicking to pause and play the media.
Node* targetNode = event->target()->toNode();
if (targetNode && targetNode->hasTagName(videoTag)) {
HTMLVideoElement* video = static_cast<HTMLVideoElement*>(targetNode);
if (event->type() == eventNames().clickEvent) {
if (!video->canPlay()) {
video->pause(event->fromUserGesture());
event->setDefaultHandled();
}
} else if (event->type() == eventNames().dblclickEvent) {
if (video->canPlay()) {
video->play(event->fromUserGesture());
event->setDefaultHandled();
}
}
}
if (event->type() == eventNames().keydownEvent && event->isKeyboardEvent()) {
HTMLVideoElement* video = 0;
if (targetNode) {
if (targetNode->hasTagName(videoTag))
video = static_cast<HTMLVideoElement*>(targetNode);
else {
RefPtr<NodeList> nodeList = targetNode->getElementsByTagName("video");
if (nodeList.get()->length() > 0)
video = static_cast<HTMLVideoElement*>(nodeList.get()->item(0));
}
}
if (video) {
KeyboardEvent* keyboardEvent = static_cast<KeyboardEvent*>(event);
if (keyboardEvent->keyIdentifier() == "U+0020") { // space
if (video->paused()) {
if (video->canPlay())
video->play(event->fromUserGesture());
} else
video->pause(event->fromUserGesture());
event->setDefaultHandled();
}
}
}
}
void MediaDocument::mediaElementSawUnsupportedTracks()
{
// The HTMLMediaElement was told it has something that the underlying
// MediaPlayer cannot handle so we should switch from <video> to <embed>
// and let the plugin handle this. Don't do it immediately as this
// function may be called directly from a media engine callback, and
// replaceChild will destroy the element, media player, and media engine.
m_replaceMediaElementTimer.startOneShot(0);
}
void MediaDocument::replaceMediaElementTimerFired(Timer<MediaDocument>*)
{
HTMLElement* htmlBody = body();
if (!htmlBody)
return;
// Set body margin width and height to 0 as that is what a PluginDocument uses.
htmlBody->setAttribute(marginwidthAttr, "0");
htmlBody->setAttribute(marginheightAttr, "0");
RefPtr<NodeList> nodeList = htmlBody->getElementsByTagName("video");
if (nodeList.get()->length() > 0) {
HTMLVideoElement* videoElement = static_cast<HTMLVideoElement*>(nodeList.get()->item(0));
RefPtr<Element> element = Document::createElement(embedTag, false);
HTMLEmbedElement* embedElement = static_cast<HTMLEmbedElement*>(element.get());
embedElement->setAttribute(widthAttr, "100%");
embedElement->setAttribute(heightAttr, "100%");
embedElement->setAttribute(nameAttr, "plugin");
embedElement->setAttribute(srcAttr, url().string());
embedElement->setAttribute(typeAttr, frame()->loader()->writer()->mimeType());
ExceptionCode ec;
videoElement->parent()->replaceChild(embedElement, videoElement, ec);
}
}
}
#endif
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