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31 #ifndef HTMLMediaSource_h
32 #define HTMLMediaSource_h
34 #include "core/html/URLRegistry.h"
35 #include "platform/heap/Handle.h"
36 #include "wtf/Forward.h"
44 class HTMLMediaElement;
47 class HTMLMediaSource : public URLRegistrable, public WillBeGarbageCollectedMixin {
49 static void setRegistry(URLRegistry*);
50 static HTMLMediaSource* lookup(const String& url) { return s_registry ? static_cast<HTMLMediaSource*>(s_registry->lookup(url)) : 0; }
53 void ref() { refHTMLMediaSource(); }
54 void deref() { derefHTMLMediaSource(); }
57 // Called when an HTMLMediaElement is attempting to attach to this object,
58 // and helps enforce attachment to at most one element at a time.
59 // If already attached, returns false. Otherwise, must be in
60 // 'closed' state, and returns true to indicate attachment success.
61 // Reattachment allowed by first calling close() (even if already in 'closed').
62 // Once attached, the source uses the element to synchronously service some
63 // API operations like duration change that may need to initiate seek.
64 virtual bool attachToElement(HTMLMediaElement*) = 0;
65 virtual void setWebMediaSourceAndOpen(PassOwnPtr<blink::WebMediaSource>) = 0;
66 virtual void close() = 0;
67 virtual bool isClosed() const = 0;
68 virtual double duration() const = 0;
69 virtual PassRefPtrWillBeRawPtr<TimeRanges> buffered() const = 0;
71 virtual void refHTMLMediaSource() = 0;
72 virtual void derefHTMLMediaSource() = 0;
76 virtual URLRegistry& registry() const OVERRIDE { return *s_registry; }
79 static URLRegistry* s_registry;