1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 * 21 */ 22 23#ifndef HTMLPlugInElement_h 24#define HTMLPlugInElement_h 25 26#include "HTMLFrameOwnerElement.h" 27#include "Image.h" 28 29#if ENABLE(NETSCAPE_PLUGIN_API) 30struct NPObject; 31#endif 32 33namespace JSC { 34namespace Bindings { 35class Instance; 36} 37} 38 39namespace WebCore { 40 41class RenderEmbeddedObject; 42class RenderWidget; 43class Widget; 44 45class HTMLPlugInElement : public HTMLFrameOwnerElement { 46public: 47 virtual ~HTMLPlugInElement(); 48 49 void resetInstance(); 50 51 PassRefPtr<JSC::Bindings::Instance> getInstance(); 52 53 Widget* pluginWidget() const; 54 55 enum DisplayState { 56 WaitingForSnapshot, 57 DisplayingSnapshot, 58 Restarting, 59 RestartingWithPendingMouseClick, 60 Playing 61 }; 62 DisplayState displayState() const { return m_displayState; } 63 virtual void setDisplayState(DisplayState state) { m_displayState = state; } 64 virtual void updateSnapshot(PassRefPtr<Image>) { } 65 virtual void dispatchPendingMouseClick() { } 66 virtual bool isRestartedPlugin() const { return false; } 67 68#if ENABLE(NETSCAPE_PLUGIN_API) 69 NPObject* getNPObject(); 70#endif 71 72 bool isCapturingMouseEvents() const { return m_isCapturingMouseEvents; } 73 void setIsCapturingMouseEvents(bool capturing) { m_isCapturingMouseEvents = capturing; } 74 75 bool canContainRangeEndPoint() const { return false; } 76 77 bool canProcessDrag() const; 78 79 virtual bool willRespondToMouseClickEvents() OVERRIDE; 80 81 virtual bool isPlugInImageElement() const { return false; } 82 83protected: 84 HTMLPlugInElement(const QualifiedName& tagName, Document*); 85 86 virtual void detach(const AttachContext& = AttachContext()) OVERRIDE; 87 virtual bool isPresentationAttribute(const QualifiedName&) const OVERRIDE; 88 virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) OVERRIDE; 89 90 virtual bool useFallbackContent() const { return false; } 91 92 virtual void defaultEventHandler(Event*) OVERRIDE; 93 94 // Subclasses should use guardedDispatchBeforeLoadEvent instead of calling dispatchBeforeLoadEvent directly. 95 bool guardedDispatchBeforeLoadEvent(const String& sourceURL); 96 97 bool m_inBeforeLoadEventHandler; 98 99private: 100 bool dispatchBeforeLoadEvent(const String& sourceURL); // Not implemented, generates a compile error if subclasses call this by mistake. 101 102 virtual bool areAuthorShadowsAllowed() const OVERRIDE { return false; } 103 104 virtual RenderWidget* renderWidgetForJSBindings() const = 0; 105 106 virtual bool supportsFocus() const OVERRIDE; 107 108 virtual bool isKeyboardFocusable(KeyboardEvent*) const OVERRIDE; 109 virtual bool isPluginElement() const OVERRIDE; 110 111 RefPtr<JSC::Bindings::Instance> m_instance; 112#if ENABLE(NETSCAPE_PLUGIN_API) 113 NPObject* m_NPObject; 114#endif 115 bool m_isCapturingMouseEvents; 116 117 DisplayState m_displayState; 118}; 119 120inline HTMLPlugInElement* toHTMLPlugInElement(Node* node) 121{ 122 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isPluginElement()); 123 return static_cast<HTMLPlugInElement*>(node); 124} 125 126inline const HTMLPlugInElement* toHTMLPlugInElement(const Node* node) 127{ 128 ASSERT_WITH_SECURITY_IMPLICATION(!node || node->isPluginElement()); 129 return static_cast<const HTMLPlugInElement*>(node); 130} 131 132// This will catch anyone doing an unnecessary cast. 133void toHTMLPlugInElement(const HTMLPlugInElement*); 134 135} // namespace WebCore 136 137#endif // HTMLPlugInElement_h 138