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
41 using namespace WebCore;
42
43 namespace blink {
44
45 DEFINE_TYPE_CASTS(WebHelperPluginImpl, WebHelperPlugin, plugin, true, true);
46
create(const WebString & pluginType,WebLocalFrame * frame)47 WebHelperPlugin* WebHelperPlugin::create(const WebString& pluginType, WebLocalFrame* frame)
48 {
49 OwnPtr<WebHelperPlugin> plugin = adoptPtr<WebHelperPlugin>(new WebHelperPluginImpl());
50 if (!toWebHelperPluginImpl(plugin.get())->initialize(pluginType, toWebLocalFrameImpl(frame)))
51 return 0;
52 return plugin.leakPtr();
53 }
54
WebHelperPluginImpl()55 WebHelperPluginImpl::WebHelperPluginImpl()
56 : m_destructionTimer(this, &WebHelperPluginImpl::reallyDestroy)
57 {
58 }
59
~WebHelperPluginImpl()60 WebHelperPluginImpl::~WebHelperPluginImpl()
61 {
62 }
63
initialize(const String & pluginType,WebLocalFrameImpl * frame)64 bool WebHelperPluginImpl::initialize(const String& pluginType, WebLocalFrameImpl* frame)
65 {
66 ASSERT(!m_objectElement && !m_pluginContainer);
67 if (!frame->frame()->loader().client())
68 return false;
69
70 m_objectElement = HTMLObjectElement::create(*frame->frame()->document(), 0, false);
71 Vector<String> attributeNames;
72 Vector<String> attributeValues;
73 ASSERT(frame->frame()->document()->url().isValid());
74 m_pluginContainer = adoptRef(toWebPluginContainerImpl(frame->frame()->loader().client()->createPlugin(
75 m_objectElement.get(),
76 frame->frame()->document()->url(),
77 attributeNames,
78 attributeValues,
79 pluginType,
80 false,
81 FrameLoaderClient::AllowDetachedPlugin).leakRef()));
82
83 if (!m_pluginContainer)
84 return false;
85
86 // Getting a placeholder plugin is also failure, since it's not the plugin the caller needed.
87 return !getPlugin()->isPlaceholder();
88 }
89
reallyDestroy(Timer<WebHelperPluginImpl> *)90 void WebHelperPluginImpl::reallyDestroy(Timer<WebHelperPluginImpl>*)
91 {
92 delete this;
93 }
94
destroy()95 void WebHelperPluginImpl::destroy()
96 {
97 // Defer deletion so we don't do too much work when called via stopActiveDOMObjects().
98 // FIXME: It's not clear why we still need this. The original code held a Page and a
99 // WebFrame, and destroying it would cause JavaScript triggered by frame detach to run,
100 // which isn't allowed inside stopActiveDOMObjects(). Removing this causes one Chrome test
101 // to fail with a timeout.
102 m_destructionTimer.startOneShot(0, FROM_HERE);
103 }
104
getPlugin()105 WebPlugin* WebHelperPluginImpl::getPlugin()
106 {
107 ASSERT(m_pluginContainer);
108 ASSERT(m_pluginContainer->plugin());
109 return m_pluginContainer->plugin();
110 }
111
112 } // namespace blink
113