• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Copyright (C) 2006, 2008 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 COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
20  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  */
24 
25 #include "config.h"
26 #include "PluginDocument.h"
27 
28 #include "DocumentLoader.h"
29 #include "Frame.h"
30 #include "FrameLoaderClient.h"
31 #include "FrameView.h"
32 #include "HTMLEmbedElement.h"
33 #include "HTMLHtmlElement.h"
34 #include "HTMLNames.h"
35 #include "MainResourceLoader.h"
36 #include "NodeList.h"
37 #include "Page.h"
38 #include "RawDataDocumentParser.h"
39 #include "RenderEmbeddedObject.h"
40 #include "Settings.h"
41 
42 namespace WebCore {
43 
44 using namespace HTMLNames;
45 
46 // FIXME: Share more code with MediaDocumentParser.
47 class PluginDocumentParser : public RawDataDocumentParser {
48 public:
create(PluginDocument * document)49     static PassRefPtr<PluginDocumentParser> create(PluginDocument* document)
50     {
51         return adoptRef(new PluginDocumentParser(document));
52     }
53 
54 private:
PluginDocumentParser(Document * document)55     PluginDocumentParser(Document* document)
56         : RawDataDocumentParser(document)
57         , m_embedElement(0)
58     {
59     }
60 
61     virtual void appendBytes(DocumentWriter*, const char*, int, bool);
62 
63     void createDocumentStructure();
64 
65     HTMLEmbedElement* m_embedElement;
66 };
67 
createDocumentStructure()68 void PluginDocumentParser::createDocumentStructure()
69 {
70     ExceptionCode ec;
71     RefPtr<Element> rootElement = document()->createElement(htmlTag, false);
72     document()->appendChild(rootElement, ec);
73 #if ENABLE(OFFLINE_WEB_APPLICATIONS)
74     static_cast<HTMLHtmlElement*>(rootElement.get())->insertedByParser();
75 #endif
76 
77     if (document()->frame() && document()->frame()->loader())
78         document()->frame()->loader()->dispatchDocumentElementAvailable();
79 
80     RefPtr<Element> body = document()->createElement(bodyTag, false);
81     body->setAttribute(marginwidthAttr, "0");
82     body->setAttribute(marginheightAttr, "0");
83     body->setAttribute(bgcolorAttr, "rgb(38,38,38)");
84 
85     rootElement->appendChild(body, ec);
86 
87     RefPtr<Element> embedElement = document()->createElement(embedTag, false);
88 
89     m_embedElement = static_cast<HTMLEmbedElement*>(embedElement.get());
90     m_embedElement->setAttribute(widthAttr, "100%");
91     m_embedElement->setAttribute(heightAttr, "100%");
92 
93     m_embedElement->setAttribute(nameAttr, "plugin");
94     m_embedElement->setAttribute(srcAttr, document()->url().string());
95 
96     DocumentLoader* loader = document()->loader();
97     ASSERT(loader);
98     if (loader)
99         m_embedElement->setAttribute(typeAttr, loader->writer()->mimeType());
100 
101     static_cast<PluginDocument*>(document())->setPluginNode(m_embedElement);
102 
103     body->appendChild(embedElement, ec);
104 }
105 
appendBytes(DocumentWriter *,const char *,int,bool)106 void PluginDocumentParser::appendBytes(DocumentWriter*, const char*, int, bool)
107 {
108     ASSERT(!m_embedElement);
109     if (m_embedElement)
110         return;
111 
112     createDocumentStructure();
113 
114     Frame* frame = document()->frame();
115     if (!frame)
116         return;
117     Settings* settings = frame->settings();
118     if (!settings || !frame->loader()->subframeLoader()->allowPlugins(NotAboutToInstantiatePlugin))
119         return;
120 
121     document()->updateLayout();
122 
123     // Below we assume that renderer->widget() to have been created by
124     // document()->updateLayout(). However, in some cases, updateLayout() will
125     // recurse too many times and delay its post-layout tasks (such as creating
126     // the widget). Here we kick off the pending post-layout tasks so that we
127     // can synchronously redirect data to the plugin.
128     frame->view()->flushAnyPendingPostLayoutTasks();
129 
130     if (RenderPart* renderer = m_embedElement->renderPart()) {
131         if (Widget* widget = renderer->widget()) {
132             frame->loader()->client()->redirectDataToPlugin(widget);
133             // In a plugin document, the main resource is the plugin. If we have a null widget, that means
134             // the loading of the plugin was cancelled, which gives us a null mainResourceLoader(), so we
135             // need to have this call in a null check of the widget or of mainResourceLoader().
136             frame->loader()->activeDocumentLoader()->mainResourceLoader()->setShouldBufferData(false);
137         }
138     }
139 
140     finish();
141 }
142 
PluginDocument(Frame * frame,const KURL & url)143 PluginDocument::PluginDocument(Frame* frame, const KURL& url)
144     : HTMLDocument(frame, url)
145     , m_shouldLoadPluginManually(true)
146 {
147     setCompatibilityMode(QuirksMode);
148     lockCompatibilityMode();
149 }
150 
createParser()151 PassRefPtr<DocumentParser> PluginDocument::createParser()
152 {
153     return PluginDocumentParser::create(this);
154 }
155 
pluginWidget()156 Widget* PluginDocument::pluginWidget()
157 {
158     if (m_pluginNode && m_pluginNode->renderer()) {
159         ASSERT(m_pluginNode->renderer()->isEmbeddedObject());
160         return toRenderEmbeddedObject(m_pluginNode->renderer())->widget();
161     }
162     return 0;
163 }
164 
pluginNode()165 Node* PluginDocument::pluginNode()
166 {
167     return m_pluginNode.get();
168 }
169 
detach()170 void PluginDocument::detach()
171 {
172     // Release the plugin node so that we don't have a circular reference.
173     m_pluginNode = 0;
174     HTMLDocument::detach();
175 }
176 
cancelManualPluginLoad()177 void PluginDocument::cancelManualPluginLoad()
178 {
179     // PluginDocument::cancelManualPluginLoad should only be called once, but there are issues
180     // with how many times we call beforeload on object elements. <rdar://problem/8441094>.
181     if (!shouldLoadPluginManually())
182         return;
183 
184     frame()->loader()->activeDocumentLoader()->mainResourceLoader()->cancel();
185     setShouldLoadPluginManually(false);
186 }
187 
188 }
189