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-rw-r--r--dom/html/HTMLSourceElement.cpp176
1 files changed, 176 insertions, 0 deletions
diff --git a/dom/html/HTMLSourceElement.cpp b/dom/html/HTMLSourceElement.cpp
new file mode 100644
index 000000000..73d9c9d8c
--- /dev/null
+++ b/dom/html/HTMLSourceElement.cpp
@@ -0,0 +1,176 @@
+/* -*- 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 "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, 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, 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