1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef HTMLPlugInElement_h
#define HTMLPlugInElement_h
#include "bindings/core/v8/SharedPersistent.h"
#include "core/html/HTMLFrameOwnerElement.h"
#include <v8.h>
struct NPObject;
namespace blink {
class HTMLImageLoader;
class PluginPlaceholder;
class RenderEmbeddedObject;
class RenderPart;
class Widget;
enum PreferPlugInsForImagesOption {
ShouldPreferPlugInsForImages,
ShouldNotPreferPlugInsForImages
};
class HTMLPlugInElement : public HTMLFrameOwnerElement {
public:
virtual ~HTMLPlugInElement();
virtual void trace(Visitor*) override;
#if ENABLE(OILPAN)
virtual void disconnectContentFrame() override;
void shouldDisposePlugin();
#endif
void resetInstance();
// Returns the existing plugin widget, if there is one.
Widget* existingPluginWidget() const;
// Returns the plugin widget, forcing layout and post-layout tasks
// to happen synchronously (e.g. for JS bindings).
// See also renderPartForJSBindings().
Widget* pluginWidgetForJSBindings();
SharedPersistent<v8::Object>* pluginWrapper();
NPObject* getNPObject();
bool canProcessDrag() const;
const String& url() const { return m_url; }
// Public for FrameView::addPartToUpdate()
bool needsWidgetUpdate() const { return m_needsWidgetUpdate; }
void setNeedsWidgetUpdate(bool needsWidgetUpdate) { m_needsWidgetUpdate = needsWidgetUpdate; }
void updateWidget();
bool shouldAccelerate() const;
void requestPluginCreationWithoutRendererIfPossible();
void createPluginWithoutRenderer();
// Public for Internals::forcePluginPlaceholder.
bool usePlaceholderContent() const { return m_placeholder; }
void setPlaceholder(PassOwnPtrWillBeRawPtr<PluginPlaceholder>);
protected:
HTMLPlugInElement(const QualifiedName& tagName, Document&, bool createdByParser, PreferPlugInsForImagesOption);
// Node functions:
virtual void didMoveToNewDocument(Document& oldDocument) override;
// Element functions:
virtual bool isPresentationAttribute(const QualifiedName&) const override;
virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override;
virtual bool hasFallbackContent() const;
virtual bool useFallbackContent() const;
// Create or update the RenderPart and return it, triggering layout if
// necessary.
virtual RenderPart* renderPartForJSBindings() const;
bool isImageType();
bool shouldPreferPlugInsForImages() const { return m_shouldPreferPlugInsForImages; }
RenderEmbeddedObject* renderEmbeddedObject() const;
bool allowedToLoadFrameURL(const String& url);
bool requestObject(const String& url, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues);
bool shouldUsePlugin(const KURL&, const String& mimeType, bool hasFallback, bool& useFallback);
void dispatchErrorEvent();
void lazyReattachIfNeeded();
String m_serviceType;
String m_url;
KURL m_loadedUrl;
OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
bool m_isDelayingLoadEvent;
private:
// EventTarget functions:
virtual void removeAllEventListeners() override final;
// Node functions:
virtual bool canContainRangeEndPoint() const override { return false; }
virtual bool willRespondToMouseClickEvents() override final;
virtual void defaultEventHandler(Event*) override final;
virtual void attach(const AttachContext& = AttachContext()) override final;
virtual void detach(const AttachContext& = AttachContext()) override final;
virtual void finishParsingChildren() override final;
// Element functions:
virtual RenderObject* createRenderer(RenderStyle*) override;
virtual bool supportsFocus() const override final { return true; }
virtual bool rendererIsFocusable() const override final;
virtual bool isKeyboardFocusable() const override final;
virtual void didAddUserAgentShadowRoot(ShadowRoot&) override final;
virtual void willAddFirstAuthorShadowRoot() override final;
// HTMLElement function:
virtual bool hasCustomFocusLogic() const override;
virtual bool isPluginElement() const override final;
// Return any existing RenderPart without triggering relayout, or 0 if it
// doesn't yet exist.
virtual RenderPart* existingRenderPart() const = 0;
virtual void updateWidgetInternal() = 0;
bool loadPlugin(const KURL&, const String& mimeType, const Vector<String>& paramNames, const Vector<String>& paramValues, bool useFallback, bool requireRenderer);
bool pluginIsLoadable(const KURL&, const String& mimeType);
bool wouldLoadAsNetscapePlugin(const String& url, const String& serviceType);
void setPersistedPluginWidget(Widget*);
mutable RefPtr<SharedPersistent<v8::Object>> m_pluginWrapper;
NPObject* m_NPObject;
bool m_isCapturingMouseEvents;
bool m_needsWidgetUpdate;
bool m_shouldPreferPlugInsForImages;
OwnPtrWillBeMember<PluginPlaceholder> m_placeholder;
// Normally the Widget is stored in HTMLFrameOwnerElement::m_widget.
// However, plugins can persist even when not rendered. In order to
// prevent confusing code which may assume that widget() != null
// means the frame is active, we save off m_widget here while
// the plugin is persisting but not being displayed.
RefPtrWillBeMember<Widget> m_persistedPluginWidget;
};
inline bool isHTMLPlugInElement(const HTMLElement& element)
{
return element.isPluginElement();
}
DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLPlugInElement);
} // namespace blink
#endif // HTMLPlugInElement_h
|
