1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer
12 *    in the documentation and/or other materials provided with the
13 *    distribution.
14 * 3. Neither the name of Google Inc. nor the names of its contributors
15 *    may be used to endorse or promote products derived from this
16 *    software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef CustomElementScheduler_h
32#define CustomElementScheduler_h
33
34#include "core/dom/custom/CustomElementCallbackQueue.h"
35#include "core/dom/custom/CustomElementLifecycleCallbacks.h"
36#include "platform/heap/Handle.h"
37#include "wtf/HashMap.h"
38#include "wtf/OwnPtr.h"
39#include "wtf/PassRefPtr.h"
40#include "wtf/text/AtomicString.h"
41
42namespace blink {
43
44class CustomElementDescriptor;
45class CustomElementMicrotaskImportStep;
46class CustomElementMicrotaskStep;
47class CustomElementRegistrationContext;
48class Document;
49class Element;
50class HTMLImportChild;
51
52class CustomElementScheduler FINAL : public NoBaseWillBeGarbageCollected<CustomElementScheduler> {
53    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(CustomElementScheduler);
54public:
55
56    static void scheduleCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtrWillBeRawPtr<Element>, CustomElementLifecycleCallbacks::CallbackType);
57    static void scheduleAttributeChangedCallback(PassRefPtr<CustomElementLifecycleCallbacks>, PassRefPtrWillBeRawPtr<Element>, const AtomicString& name, const AtomicString& oldValue, const AtomicString& newValue);
58
59    static void resolveOrScheduleResolution(PassRefPtrWillBeRawPtr<CustomElementRegistrationContext>, PassRefPtrWillBeRawPtr<Element>, const CustomElementDescriptor&);
60    static CustomElementMicrotaskImportStep* scheduleImport(HTMLImportChild*);
61
62    static void microtaskDispatcherDidFinish();
63    static void callbackDispatcherDidFinish();
64
65private:
66    CustomElementScheduler() { }
67
68    static void enqueueMicrotaskStep(Document&, PassOwnPtrWillBeRawPtr<CustomElementMicrotaskStep>, bool importIsSync = true);
69};
70
71}
72
73#endif // CustomElementScheduler_h
74