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#include "config.h"
32#include "core/dom/custom/CustomElementMicrotaskImportStep.h"
33
34#include "core/dom/custom/CustomElementMicrotaskDispatcher.h"
35#include "core/dom/custom/CustomElementSyncMicrotaskQueue.h"
36#include "core/html/imports/HTMLImportChild.h"
37#include "core/html/imports/HTMLImportLoader.h"
38#include <stdio.h>
39
40namespace blink {
41
42PassOwnPtrWillBeRawPtr<CustomElementMicrotaskImportStep> CustomElementMicrotaskImportStep::create(HTMLImportChild* import)
43{
44    return adoptPtrWillBeNoop(new CustomElementMicrotaskImportStep(import));
45}
46
47CustomElementMicrotaskImportStep::CustomElementMicrotaskImportStep(HTMLImportChild* import)
48#if ENABLE(OILPAN)
49    : m_import(import)
50#else
51    : m_import(import->weakPtr())
52    , m_weakFactory(this)
53#endif
54    , m_queue(import->loader()->microtaskQueue())
55{
56}
57
58CustomElementMicrotaskImportStep::~CustomElementMicrotaskImportStep()
59{
60}
61
62void CustomElementMicrotaskImportStep::invalidate()
63{
64    m_queue = CustomElementSyncMicrotaskQueue::create();
65    m_import.clear();
66}
67
68bool CustomElementMicrotaskImportStep::shouldWaitForImport() const
69{
70    return m_import && !m_import->loader()->isDone();
71}
72
73void CustomElementMicrotaskImportStep::didUpgradeAllCustomElements()
74{
75    ASSERT(m_queue);
76    if (m_import)
77        m_import->didFinishUpgradingCustomElements();
78}
79
80CustomElementMicrotaskStep::Result CustomElementMicrotaskImportStep::process()
81{
82    m_queue->dispatch();
83    if (!m_queue->isEmpty() || shouldWaitForImport())
84        return Processing;
85
86    didUpgradeAllCustomElements();
87    return FinishedProcessing;
88}
89
90void CustomElementMicrotaskImportStep::trace(Visitor* visitor)
91{
92    visitor->trace(m_import);
93    visitor->trace(m_queue);
94    CustomElementMicrotaskStep::trace(visitor);
95}
96
97#if !defined(NDEBUG)
98void CustomElementMicrotaskImportStep::show(unsigned indent)
99{
100    fprintf(stderr, "%*sImport(wait=%d sync=%d, url=%s)\n", indent, "", shouldWaitForImport(), m_import && m_import->isSync(), m_import ? m_import->url().string().utf8().data() : "null");
101    m_queue->show(indent + 1);
102}
103#endif
104
105} // namespace blink
106