1/*
2 * Copyright (C) 2010 Apple 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 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "InjectedBundleRangeHandle.h"
28
29#include <JavaScriptCore/APICast.h>
30#include <WebCore/JSRange.h>
31#include <WebCore/Range.h>
32#include <wtf/HashMap.h>
33#include <wtf/NeverDestroyed.h>
34
35using namespace WebCore;
36
37namespace WebKit {
38
39typedef HashMap<Range*, InjectedBundleRangeHandle*> DOMHandleCache;
40
41static DOMHandleCache& domHandleCache()
42{
43    static NeverDestroyed<DOMHandleCache> cache;
44    return cache;
45}
46
47PassRefPtr<InjectedBundleRangeHandle> InjectedBundleRangeHandle::getOrCreate(JSContextRef, JSObjectRef object)
48{
49    Range* range = toRange(toJS(object));
50    return getOrCreate(range);
51}
52
53PassRefPtr<InjectedBundleRangeHandle> InjectedBundleRangeHandle::getOrCreate(Range* range)
54{
55    if (!range)
56        return 0;
57
58    DOMHandleCache::AddResult result = domHandleCache().add(range, nullptr);
59    if (!result.isNewEntry)
60        return PassRefPtr<InjectedBundleRangeHandle>(result.iterator->value);
61
62    RefPtr<InjectedBundleRangeHandle> rangeHandle = InjectedBundleRangeHandle::create(range);
63    result.iterator->value = rangeHandle.get();
64    return rangeHandle.release();
65}
66
67PassRefPtr<InjectedBundleRangeHandle> InjectedBundleRangeHandle::create(Range* range)
68{
69    return adoptRef(new InjectedBundleRangeHandle(range));
70}
71
72InjectedBundleRangeHandle::InjectedBundleRangeHandle(Range* range)
73    : m_range(range)
74{
75}
76
77InjectedBundleRangeHandle::~InjectedBundleRangeHandle()
78{
79    domHandleCache().remove(m_range.get());
80}
81
82Range* InjectedBundleRangeHandle::coreRange() const
83{
84    return m_range.get();
85}
86
87} // namespace WebKit
88