#include "platform/heap/Handle.h"
#include "wtf/Forward.h"
#include "wtf/RefCounted.h"
-#include "wtf/Vector.h"
-namespace WebCore {
+namespace blink {
class Document;
class MediaQueryList;
// whenever it is needed and to call the listeners if the corresponding query has changed.
// The listeners must be called in the very same order in which they have been added.
-class MediaQueryMatcher FINAL : public RefCountedWillBeGarbageCollected<MediaQueryMatcher> {
- DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MediaQueryMatcher);
+class MediaQueryMatcher FINAL : public RefCountedWillBeGarbageCollectedFinalized<MediaQueryMatcher> {
+ DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(MediaQueryMatcher)
public:
- static PassRefPtrWillBeRawPtr<MediaQueryMatcher> create(Document* document) { return adoptRefWillBeNoop(new MediaQueryMatcher(document)); }
- void documentDestroyed();
+ static PassRefPtrWillBeRawPtr<MediaQueryMatcher> create(Document&);
+ void documentDetached();
- void addListener(PassRefPtrWillBeRawPtr<MediaQueryListListener>, PassRefPtrWillBeRawPtr<MediaQueryList>);
- void removeListener(MediaQueryListListener*, MediaQueryList*);
+ void addMediaQueryList(MediaQueryList*);
+ void removeMediaQueryList(MediaQueryList*);
+
+ void addViewportListener(MediaQueryListListener*);
+ void removeViewportListener(MediaQueryListListener*);
PassRefPtrWillBeRawPtr<MediaQueryList> matchMedia(const String&);
- unsigned evaluationRound() const { return m_evaluationRound; }
- void styleResolverChanged();
+ void mediaFeaturesChanged();
+ void viewportChanged();
bool evaluate(const MediaQuerySet*);
void trace(Visitor*);
private:
- class Listener FINAL : public NoBaseWillBeGarbageCollected<Listener> {
- public:
- Listener(PassRefPtrWillBeRawPtr<MediaQueryListListener>, PassRefPtrWillBeRawPtr<MediaQueryList>);
- void evaluate(MediaQueryEvaluator*);
-
- MediaQueryListListener* listener() { return m_listener.get(); }
- MediaQueryList* query() { return m_query.get(); }
-
- void trace(Visitor*);
+ explicit MediaQueryMatcher(Document&);
- private:
- RefPtrWillBeMember<MediaQueryListListener> m_listener;
- RefPtrWillBeMember<MediaQueryList> m_query;
- };
-
- MediaQueryMatcher(Document*);
- PassOwnPtr<MediaQueryEvaluator> prepareEvaluator() const;
- AtomicString mediaType() const;
+ PassOwnPtr<MediaQueryEvaluator> createEvaluator() const;
RawPtrWillBeMember<Document> m_document;
- WillBeHeapVector<OwnPtrWillBeMember<Listener> > m_listeners;
+ OwnPtr<MediaQueryEvaluator> m_evaluator;
+
+ typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<MediaQueryList> > MediaQueryListSet;
+ MediaQueryListSet m_mediaLists;
- // This value is incremented at style selector changes.
- // It is used to avoid evaluating queries more then once and to make sure
- // that a media query result change is notified exactly once.
- unsigned m_evaluationRound;
+ typedef WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<MediaQueryListListener> > ViewportListenerSet;
+ ViewportListenerSet m_viewportListeners;
};
}