1/*
2 * Copyright (C) 2012 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this 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 "web/WebHelperPluginImpl.h"
33
34#include "core/html/HTMLObjectElement.h"
35#include "core/loader/FrameLoader.h"
36#include "core/loader/FrameLoaderClient.h"
37#include "public/web/WebPlugin.h"
38#include "web/WebLocalFrameImpl.h"
39#include "web/WebPluginContainerImpl.h"
40
41namespace blink {
42
43DEFINE_TYPE_CASTS(WebHelperPluginImpl, WebHelperPlugin, plugin, true, true);
44
45WebHelperPlugin* WebHelperPlugin::create(const WebString& pluginType, WebLocalFrame* frame)
46{
47    OwnPtr<WebHelperPlugin> plugin = adoptPtr<WebHelperPlugin>(new WebHelperPluginImpl());
48    if (!toWebHelperPluginImpl(plugin.get())->initialize(pluginType, toWebLocalFrameImpl(frame)))
49        return 0;
50    return plugin.leakPtr();
51}
52
53WebHelperPluginImpl::WebHelperPluginImpl()
54    : m_destructionTimer(this, &WebHelperPluginImpl::reallyDestroy)
55{
56}
57
58WebHelperPluginImpl::~WebHelperPluginImpl()
59{
60}
61
62bool WebHelperPluginImpl::initialize(const String& pluginType, WebLocalFrameImpl* frame)
63{
64    ASSERT(!m_objectElement && !m_pluginContainer);
65    if (!frame->frame()->loader().client())
66        return false;
67
68    m_objectElement = HTMLObjectElement::create(*frame->frame()->document(), 0, false);
69    Vector<String> attributeNames;
70    Vector<String> attributeValues;
71    ASSERT(frame->frame()->document()->url().isValid());
72    m_pluginContainer = adoptRef(toWebPluginContainerImpl(frame->frame()->loader().client()->createPlugin(
73        m_objectElement.get(),
74        frame->frame()->document()->url(),
75        attributeNames,
76        attributeValues,
77        pluginType,
78        false,
79        FrameLoaderClient::AllowDetachedPlugin).leakRef()));
80
81    if (!m_pluginContainer)
82        return false;
83
84    // Getting a placeholder plugin is also failure, since it's not the plugin the caller needed.
85    return !getPlugin()->isPlaceholder();
86}
87
88void WebHelperPluginImpl::reallyDestroy(Timer<WebHelperPluginImpl>*)
89{
90    delete this;
91}
92
93void WebHelperPluginImpl::destroy()
94{
95    // Defer deletion so we don't do too much work when called via stopActiveDOMObjects().
96    // FIXME: It's not clear why we still need this. The original code held a Page and a
97    // WebFrame, and destroying it would cause JavaScript triggered by frame detach to run,
98    // which isn't allowed inside stopActiveDOMObjects(). Removing this causes one Chrome test
99    // to fail with a timeout.
100    m_destructionTimer.startOneShot(0, FROM_HERE);
101}
102
103WebPlugin* WebHelperPluginImpl::getPlugin()
104{
105    ASSERT(m_pluginContainer);
106    ASSERT(m_pluginContainer->plugin());
107    return m_pluginContainer->plugin();
108}
109
110} // namespace blink
111