зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
3.1 KiB
C++
136 строки
3.1 KiB
C++
/* -*- 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/. */
|
|
|
|
/* base class for representation of media lists */
|
|
|
|
#include "mozilla/dom/MediaList.h"
|
|
|
|
#include "mozAutoDocUpdate.h"
|
|
#include "mozilla/dom/MediaListBinding.h"
|
|
#include "mozilla/ServoMediaList.h"
|
|
#include "mozilla/StyleSheetInlines.h"
|
|
#include "nsCSSParser.h"
|
|
#include "nsMediaList.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaList)
|
|
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMMediaList)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaList)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaList)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(MediaList)
|
|
|
|
JSObject*
|
|
MediaList::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
return MediaListBinding::Wrap(aCx, this, aGivenProto);
|
|
}
|
|
|
|
void
|
|
MediaList::SetStyleSheet(StyleSheet* aSheet)
|
|
{
|
|
MOZ_ASSERT(aSheet == mStyleSheet || !aSheet || !mStyleSheet,
|
|
"Multiple style sheets competing for one media list");
|
|
mStyleSheet = aSheet;
|
|
}
|
|
|
|
template<typename Func>
|
|
nsresult
|
|
MediaList::DoMediaChange(Func aCallback)
|
|
{
|
|
nsCOMPtr<nsIDocument> doc;
|
|
if (mStyleSheet) {
|
|
doc = mStyleSheet->GetAssociatedDocument();
|
|
}
|
|
mozAutoDocUpdate updateBatch(doc, UPDATE_STYLE, true);
|
|
if (mStyleSheet) {
|
|
mStyleSheet->WillDirty();
|
|
}
|
|
|
|
nsresult rv = aCallback();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (mStyleSheet) {
|
|
mStyleSheet->DidDirty();
|
|
}
|
|
/* XXXldb Pass something meaningful? */
|
|
if (doc) {
|
|
doc->StyleRuleChanged(mStyleSheet, nullptr);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
/* static */ already_AddRefed<MediaList>
|
|
MediaList::Create(nsIDocument* aDocument, const nsAString& aMedia)
|
|
{
|
|
MOZ_ASSERT(aDocument);
|
|
if (aDocument->IsStyledByServo()) {
|
|
RefPtr<ServoMediaList> mediaList = new ServoMediaList(aMedia);
|
|
return mediaList.forget();
|
|
}
|
|
|
|
nsCSSParser parser;
|
|
RefPtr<nsMediaList> mediaList = new nsMediaList();
|
|
parser.ParseMediaList(aMedia, nullptr, 0, mediaList);
|
|
return mediaList.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::GetMediaText(nsAString& aMediaText)
|
|
{
|
|
GetText(aMediaText);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::SetMediaText(const nsAString& aMediaText)
|
|
{
|
|
return DoMediaChange([&]() {
|
|
SetText(aMediaText);
|
|
return NS_OK;
|
|
});
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::GetLength(uint32_t* aLength)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aLength);
|
|
|
|
*aLength = Length();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::Item(uint32_t aIndex, nsAString& aReturn)
|
|
{
|
|
bool dummy;
|
|
IndexedGetter(aIndex, dummy, aReturn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::DeleteMedium(const nsAString& aOldMedium)
|
|
{
|
|
return DoMediaChange([&]() { return Delete(aOldMedium); });
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaList::AppendMedium(const nsAString& aNewMedium)
|
|
{
|
|
return DoMediaChange([&]() { return Append(aNewMedium); });
|
|
}
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|