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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "mozilla/dom/HTMLSourceElement.h"
#include "mozilla/dom/HTMLSourceElementBinding.h"
#include "mozilla/dom/HTMLImageElement.h"
#include "mozilla/dom/ResponsiveImageSelector.h"
#include "mozilla/dom/MediaSource.h"
#include "nsGkAtoms.h"
#include "nsIMediaList.h"
#include "nsCSSParser.h"
#include "nsHostObjectProtocolHandler.h"
#include "mozilla/Preferences.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Source)
namespace mozilla {
namespace dom {
HTMLSourceElement::HTMLSourceElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
{
}
HTMLSourceElement::~HTMLSourceElement()
{
}
NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLSourceElement, nsGenericHTMLElement,
mSrcMediaSource)
NS_IMPL_ADDREF_INHERITED(HTMLSourceElement, nsGenericHTMLElement)
NS_IMPL_RELEASE_INHERITED(HTMLSourceElement, nsGenericHTMLElement)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(HTMLSourceElement)
NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLSourceElement)
NS_INTERFACE_MAP_END_INHERITING(nsGenericHTMLElement)
NS_IMPL_ELEMENT_CLONE(HTMLSourceElement)
NS_IMPL_URI_ATTR(HTMLSourceElement, Src, src)
NS_IMPL_STRING_ATTR(HTMLSourceElement, Type, type)
NS_IMPL_STRING_ATTR(HTMLSourceElement, Srcset, srcset)
NS_IMPL_STRING_ATTR(HTMLSourceElement, Sizes, sizes)
NS_IMPL_STRING_ATTR(HTMLSourceElement, Media, media)
bool
HTMLSourceElement::MatchesCurrentMedia()
{
if (mMediaList) {
nsIPresShell* presShell = OwnerDoc()->GetShell();
nsPresContext* pctx = presShell ? presShell->GetPresContext() : nullptr;
return pctx && mMediaList->Matches(pctx, nullptr);
}
// No media specified
return true;
}
/* static */ bool
HTMLSourceElement::WouldMatchMediaForDocument(const nsAString& aMedia,
const nsIDocument *aDocument)
{
if (aMedia.IsEmpty()) {
return true;
}
nsIPresShell* presShell = aDocument->GetShell();
nsPresContext* pctx = presShell ? presShell->GetPresContext() : nullptr;
nsCSSParser cssParser;
RefPtr<nsMediaList> mediaList = new nsMediaList();
cssParser.ParseMediaList(aMedia, nullptr, 0, mediaList, false);
return pctx && mediaList->Matches(pctx, nullptr);
}
void
HTMLSourceElement::UpdateMediaList(const nsAttrValue* aValue)
{
mMediaList = nullptr;
nsString mediaStr;
if (!aValue || (mediaStr = aValue->GetStringValue()).IsEmpty()) {
return;
}
nsCSSParser cssParser;
mMediaList = new nsMediaList();
cssParser.ParseMediaList(mediaStr, nullptr, 0, mMediaList, false);
}
nsresult
HTMLSourceElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue, bool aNotify)
{
// If we are associated with a <picture> with a valid <img>, notify it of
// responsive parameter changes
Element *parent = nsINode::GetParentElement();
if (aNameSpaceID == kNameSpaceID_None &&
(aName == nsGkAtoms::srcset ||
aName == nsGkAtoms::sizes ||
aName == nsGkAtoms::media ||
aName == nsGkAtoms::type) &&
parent && parent->IsHTMLElement(nsGkAtoms::picture)) {
nsString strVal = aValue ? aValue->GetStringValue() : EmptyString();
// Find all img siblings after this <source> and notify them of the change
nsCOMPtr<nsIContent> sibling = AsContent();
while ( (sibling = sibling->GetNextSibling()) ) {
if (sibling->IsHTMLElement(nsGkAtoms::img)) {
HTMLImageElement *img = static_cast<HTMLImageElement*>(sibling.get());
if (aName == nsGkAtoms::srcset) {
img->PictureSourceSrcsetChanged(AsContent(), strVal, aNotify);
} else if (aName == nsGkAtoms::sizes) {
img->PictureSourceSizesChanged(AsContent(), strVal, aNotify);
} else if (aName == nsGkAtoms::media) {
UpdateMediaList(aValue);
img->PictureSourceMediaOrTypeChanged(AsContent(), aNotify);
} else if (aName == nsGkAtoms::type) {
img->PictureSourceMediaOrTypeChanged(AsContent(), aNotify);
}
}
}
} else if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::media) {
UpdateMediaList(aValue);
} else if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::src) {
mSrcMediaSource = nullptr;
if (aValue) {
nsString srcStr = aValue->GetStringValue();
nsCOMPtr<nsIURI> uri;
NewURIFromString(srcStr, getter_AddRefs(uri));
if (uri && IsMediaSourceURI(uri)) {
NS_GetSourceForMediaSourceURI(uri, getter_AddRefs(mSrcMediaSource));
}
}
}
return nsGenericHTMLElement::AfterSetAttr(aNameSpaceID, aName,
aValue, aOldValue, aNotify);
}
nsresult
HTMLSourceElement::BindToTree(nsIDocument *aDocument,
nsIContent *aParent,
nsIContent *aBindingParent,
bool aCompileEventHandlers)
{
nsresult rv = nsGenericHTMLElement::BindToTree(aDocument,
aParent,
aBindingParent,
aCompileEventHandlers);
NS_ENSURE_SUCCESS(rv, rv);
if (aParent && aParent->IsNodeOfType(nsINode::eMEDIA)) {
HTMLMediaElement* media = static_cast<HTMLMediaElement*>(aParent);
media->NotifyAddedSource();
}
return NS_OK;
}
JSObject*
HTMLSourceElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return HTMLSourceElementBinding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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