gecko-dev/dom/events/PendingFullscreenEvent.h

71 строка
1.9 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/. */
#ifndef mozilla_PendingFullscreenEvent_h_
#define mozilla_PendingFullscreenEvent_h_
#include "nsContentUtils.h"
namespace mozilla {
namespace dom {
class Document;
}
enum class FullscreenEventType {
Change,
Error,
};
/*
* Class for dispatching a fullscreen event. It should be queued and
* invoked as part of "run the fullscreen steps" algorithm.
*/
class PendingFullscreenEvent {
public:
PendingFullscreenEvent(FullscreenEventType aType, dom::Document* aDocument,
nsINode* aTarget)
: mDocument(aDocument), mTarget(aTarget), mType(aType) {
MOZ_ASSERT(aDocument);
MOZ_ASSERT(aTarget);
}
dom::Document* Document() const { return mDocument; }
void Dispatch() {
#ifdef DEBUG
MOZ_ASSERT(!mDispatched);
mDispatched = true;
#endif
nsString name;
switch (mType) {
case FullscreenEventType::Change:
name = NS_LITERAL_STRING("fullscreenchange");
break;
case FullscreenEventType::Error:
name = NS_LITERAL_STRING("fullscreenerror");
break;
}
nsINode* target = mTarget->GetComposedDoc() == mDocument ? mTarget.get()
: mDocument.get();
Unused << nsContentUtils::DispatchTrustedEvent(
mDocument, target, name, CanBubble::eYes, Cancelable::eNo,
Composed::eYes);
}
private:
RefPtr<dom::Document> mDocument;
nsCOMPtr<nsINode> mTarget;
FullscreenEventType mType;
#ifdef DEBUG
bool mDispatched = false;
#endif
};
} // namespace mozilla
#endif // mozilla_PendingFullscreenEvent_h_