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31 #ifndef CustomElementScheduler_h
32 #define CustomElementScheduler_h
34 #include "core/dom/custom/CustomElementCallbackQueue.h"
35 #include "wtf/HashMap.h"
36 #include "wtf/OwnPtr.h"
37 #include "wtf/PassRefPtr.h"
38 #include "wtf/text/AtomicString.h"
42 class CustomElementDescriptor;
43 class CustomElementLifecycleCallbacks;
44 class CustomElementMicrotaskImportStep;
46 class HTMLImportChild;
48 class CustomElementScheduler {
50 static void scheduleCreatedCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
51 static void scheduleAttributeChangedCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
52 static void scheduleAttachedCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
53 static void scheduleDetachedCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtr<Element>);
55 static void resolveOrScheduleResolution(PassRefPtr<CustomElementRegistrationContext>, PassRefPtr<Element>, const CustomElementDescriptor&);
56 static CustomElementMicrotaskImportStep* scheduleImport(HTMLImportChild*);
58 static void microtaskDispatcherDidFinish();
59 static void callbackDispatcherDidFinish();
62 CustomElementScheduler() { }
64 static CustomElementScheduler& instance();
66 CustomElementCallbackQueue* ensureCallbackQueue(PassRefPtr<Element>);
67 CustomElementCallbackQueue* schedule(PassRefPtr<Element>);
69 // FIXME: Consider moving the element's callback queue to
70 // ElementRareData. Then the scheduler can become completely
72 void clearElementCallbackQueueMap();
74 // The element -> callback queue map is populated by the scheduler
75 // and owns the lifetimes of the CustomElementCallbackQueues.
76 typedef HashMap<Element*, OwnPtr<CustomElementCallbackQueue> > ElementCallbackQueueMap;
77 ElementCallbackQueueMap m_elementCallbackQueueMap;
82 #endif // CustomElementScheduler_h