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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/. */
#include "MediaDocument.h"
#include "nsGkAtoms.h"
#include "nsNodeInfoManager.h"
#include "nsContentCreatorFunctions.h"
#include "mozilla/dom/HTMLMediaElement.h"
#include "DocumentInlines.h"
#include "nsContentUtils.h"
#include "mozilla/dom/Element.h"
namespace mozilla::dom {
class VideoDocument final : public MediaDocument {
public:
enum MediaDocumentKind MediaDocumentKind() const override {
return MediaDocumentKind::Video;
}
virtual nsresult StartDocumentLoad(const char* aCommand, nsIChannel* aChannel,
nsILoadGroup* aLoadGroup,
nsISupports* aContainer,
nsIStreamListener** aDocListener,
bool aReset = true) override;
virtual void SetScriptGlobalObject(
nsIScriptGlobalObject* aScriptGlobalObject) override;
virtual void Destroy() override {
if (mStreamListener) {
mStreamListener->DropDocumentRef();
}
MediaDocument::Destroy();
}
nsresult StartLayout() override;
protected:
nsresult CreateVideoElement();
// Sets document <title> to reflect the file name and description.
void UpdateTitle(nsIChannel* aChannel);
RefPtr<MediaDocumentStreamListener> mStreamListener;
};
nsresult VideoDocument::StartDocumentLoad(
const char* aCommand, nsIChannel* aChannel, nsILoadGroup* aLoadGroup,
nsISupports* aContainer, nsIStreamListener** aDocListener, bool aReset) {
nsresult rv = MediaDocument::StartDocumentLoad(
aCommand, aChannel, aLoadGroup, aContainer, aDocListener, aReset);
NS_ENSURE_SUCCESS(rv, rv);
mStreamListener = new MediaDocumentStreamListener(this);
NS_ADDREF(*aDocListener = mStreamListener);
return rv;
}
nsresult VideoDocument::StartLayout() {
// Create video element, and begin loading the media resource. Note we
// delay creating the video element until now (we're called from
// MediaDocumentStreamListener::OnStartRequest) as the PresShell is likely
// to have been created by now, so the MediaDecoder will be able to tell
// what kind of compositor we have, so the video element knows whether
// it can create a hardware accelerated video decoder or not.
nsresult rv = CreateVideoElement();
NS_ENSURE_SUCCESS(rv, rv);
rv = MediaDocument::StartLayout();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
void VideoDocument::SetScriptGlobalObject(
nsIScriptGlobalObject* aScriptGlobalObject) {
// Set the script global object on the superclass before doing
// anything that might require it....
MediaDocument::SetScriptGlobalObject(aScriptGlobalObject);
if (aScriptGlobalObject && !InitialSetupHasBeenDone()) {
DebugOnly<nsresult> rv = CreateSyntheticDocument();
NS_ASSERTION(NS_SUCCEEDED(rv), "failed to create synthetic video document");
if (!nsContentUtils::IsChildOfSameType(this)) {
LinkStylesheet(nsLiteralString(
u"resource://content-accessible/TopLevelVideoDocument.css"));
LinkScript(u"chrome://global/content/TopLevelVideoDocument.js"_ns);
}
InitialSetupDone();
}
}
nsresult VideoDocument::CreateVideoElement() {
RefPtr<Element> body = GetBodyElement();
if (!body) {
NS_WARNING("no body on video document!");
return NS_ERROR_FAILURE;
}
// make content
RefPtr<mozilla::dom::NodeInfo> nodeInfo;
nodeInfo = mNodeInfoManager->GetNodeInfo(
nsGkAtoms::video, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
RefPtr<HTMLMediaElement> element = static_cast<HTMLMediaElement*>(
NS_NewHTMLVideoElement(nodeInfo.forget(), NOT_FROM_PARSER));
if (!element) return NS_ERROR_OUT_OF_MEMORY;
element->SetAutoplay(true, IgnoreErrors());
element->SetControls(true, IgnoreErrors());
element->LoadWithChannel(mChannel,
getter_AddRefs(mStreamListener->mNextStream));
UpdateTitle(mChannel);
if (nsContentUtils::IsChildOfSameType(this)) {
// Video documents that aren't toplevel should fill their frames and
// not have margins
element->SetAttr(
kNameSpaceID_None, nsGkAtoms::style,
nsLiteralString(
u"position:absolute; top:0; left:0; width:100%; height:100%"),
true);
}
ErrorResult rv;
body->AppendChildTo(element, false, rv);
return rv.StealNSResult();
}
void VideoDocument::UpdateTitle(nsIChannel* aChannel) {
if (!aChannel) return;
nsAutoString fileName;
GetFileName(fileName, aChannel);
IgnoredErrorResult ignored;
SetTitle(fileName, ignored);
}
} // namespace mozilla::dom
nsresult NS_NewVideoDocument(mozilla::dom::Document** aResult) {
auto* doc = new mozilla::dom::VideoDocument();
NS_ADDREF(doc);
nsresult rv = doc->Init();
if (NS_FAILED(rv)) {
NS_RELEASE(doc);
}
*aResult = doc;
return rv;
}
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