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251 lines
10 KiB
251 lines
10 KiB
15 years ago
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// -*- c-basic-offset: 2 -*-
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/*
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* This file is part of the KDE libraries
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* Copyright (C) 2001 Peter Kelly (pmk@post.com)
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* Copyright (C) 2003 Apple Computer, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _KJS_EVENTS_H_
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#define _KJS_EVENTS_H_
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#include "ecma/kjs_dom.h"
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#include "dom/dom2_events.h"
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#include "dom/dom_misc.h"
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#include "xml/dom2_eventsimpl.h"
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namespace KJS {
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class Window;
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class JSEventListener : public DOM::EventListener {
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public:
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/**
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* @param _listener the function object, that will be called when the event is emitted
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* @param _compareListenerImp Compare Listener implementation.
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* @param _win Window object, for memory management and caching.
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* @param _html \c true if it is HTML.
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* Never create a JSEventListener directly, use Window::getJSEventListener.
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*/
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JSEventListener(Object _listener, ObjectImp *_compareListenerImp, const Object &_win, bool _html = false);
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virtual ~JSEventListener();
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virtual void handleEvent(DOM::Event &evt);
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virtual DOM::DOMString eventListenerType();
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// Return the KJS function object executed when this event is emitted
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virtual Object listenerObj() const;
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ObjectImp *listenerObjImp() const { return listenerObj().imp(); }
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// for Window::clear(). This is a bad hack though. The JSEventListener might not get deleted
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// if it was added to a DOM node in another frame (#61467). But calling removeEventListener on
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// all nodes we're listening to is quite difficult.
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void clear() { listener = Object(); }
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bool isHTMLEventListener() const { return html; }
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protected:
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mutable Object listener;
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// Storing a different ObjectImp ptr is needed to support addEventListener(.. [Object] ..) calls
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// In the real-life case (where a 'function' is passed to addEventListener) we can directly call
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// the 'listener' object and can cache the 'listener.imp()'. If the event listener should be removed
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// the implementation will call removeEventListener(.. [Function] ..), and we can lookup the event
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// listener by the passed function's imp() ptr.
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// In the only dom-approved way (passing an Object to add/removeEventListener), the 'listener'
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// variable stores the function object 'passedListener.handleEvent'. But we need to cache
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// the imp() ptr of the 'passedListener' function _object_, as the implementation will
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// call removeEventListener(.. [Object ..] on removal, and now we can successfully lookup
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// the correct event listener, as well as the 'listener.handleEvent' function, we need to call.
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mutable ObjectImp *compareListenerImp;
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bool html;
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Object win;
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};
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class JSLazyEventListener : public JSEventListener {
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public:
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JSLazyEventListener(const TQString &_code, const TQString &_name, const Object &_win, DOM::NodeImpl* node);
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~JSLazyEventListener();
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virtual void handleEvent(DOM::Event &evt);
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Object listenerObj() const;
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private:
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void parseCode() const;
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15 years ago
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mutable TQString code;
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mutable TQString name;
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mutable bool parsed;
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DOM::NodeImpl *originalNode;
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};
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// Constructor for Event - currently only used for some global vars
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DEFINE_PSEUDO_CONSTRUCTOR(EventConstructor)
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class DOMEvent : public DOMObject {
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public:
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// Build a DOMEvent
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DOMEvent(ExecState *exec, DOM::Event e);
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// Constructor for inherited classes
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DOMEvent(const Object &proto, DOM::Event e);
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~DOMEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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virtual void tryPut(ExecState *exec, const Identifier &propertyName,
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const Value& value, int attr = None);
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virtual Value defaultValue(ExecState *exec, KJS::Type hint) const;
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void putValueProperty(ExecState *exec, int token, const Value& value, int);
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum { Type, Target, CurrentTarget, EventPhase, Bubbles,
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Cancelable, TimeStamp, StopPropagation, PreventDefault, InitEvent,
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// MS IE equivalents
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SrcElement, ReturnValue, CancelBubble };
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DOM::Event toEvent() const { return event; }
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protected:
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DOM::Event event;
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};
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Value getDOMEvent(ExecState *exec, DOM::Event e);
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/**
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* Convert an object to an Event. Returns a null Event if not possible.
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*/
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DOM::Event toEvent(const Value&);
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// Constructor object EventException
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class EventExceptionConstructor : public DOMObject {
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public:
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EventExceptionConstructor(ExecState *);
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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};
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Value getEventExceptionConstructor(ExecState *exec);
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class DOMUIEvent : public DOMEvent {
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public:
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// Build a DOMUIEvent
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DOMUIEvent(ExecState *exec, DOM::UIEvent ue);
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// Constructor for inherited classes
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DOMUIEvent(const Object &proto, DOM::UIEvent ue);
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~DOMUIEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum { View, Detail, KeyCode, CharCode, LayerX, LayerY, PageX, PageY, Which, InitUIEvent };
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DOM::UIEvent toUIEvent() const { return static_cast<DOM::UIEvent>(event); }
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};
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class DOMMouseEvent : public DOMUIEvent {
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public:
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DOMMouseEvent(ExecState *exec, DOM::MouseEvent me);
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~DOMMouseEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum { ScreenX, ScreenY, ClientX, X, ClientY, Y, OffsetX, OffsetY,
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CtrlKey, ShiftKey, AltKey,
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MetaKey, Button, RelatedTarget, FromElement, ToElement,
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InitMouseEvent
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};
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DOM::MouseEvent toMouseEvent() const { return static_cast<DOM::MouseEvent>(event); }
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};
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class DOMKeyEventBase : public DOMUIEvent {
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public:
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DOMKeyEventBase(const Object &proto, DOM::TextEvent ke);
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~DOMKeyEventBase();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum { Key, VirtKey, CtrlKey, ShiftKey, AltKey, MetaKey };
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DOM::KeyEventBaseImpl* impl() const { return static_cast<DOM::KeyEventBaseImpl*>(event.handle()); }
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};
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class DOMTextEvent : public DOMKeyEventBase {
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public:
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DOMTextEvent(ExecState *exec, DOM::TextEvent ke);
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~DOMTextEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum {Data, InitTextEvent};
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DOM::TextEventImpl* impl() const { return static_cast<DOM::TextEventImpl*>(event.handle()); }
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};
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class DOMKeyboardEvent : public DOMKeyEventBase {
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public:
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DOMKeyboardEvent(ExecState *exec, DOM::TextEvent ke);
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~DOMKeyboardEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum {KeyIdentifier, KeyLocation, GetModifierState, InitKeyboardEvent};
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DOM::KeyboardEventImpl* impl() const { return static_cast<DOM::KeyboardEventImpl*>(event.handle()); }
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};
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// Constructor object KeyboardEvent
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class KeyboardEventConstructor : public DOMObject {
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public:
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KeyboardEventConstructor(ExecState *);
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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};
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Value getKeyboardEventConstructor(ExecState *exec);
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// Constructor object MutationEvent
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class MutationEventConstructor : public DOMObject {
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public:
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MutationEventConstructor(ExecState *);
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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};
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Value getMutationEventConstructor(ExecState *exec);
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class DOMMutationEvent : public DOMEvent {
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public:
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DOMMutationEvent(ExecState *exec, DOM::MutationEvent me);
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~DOMMutationEvent();
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virtual Value tryGet(ExecState *exec,const Identifier &p) const;
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Value getValueProperty(ExecState *, int token) const;
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// no put - all read-only
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virtual const ClassInfo* classInfo() const { return &info; }
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static const ClassInfo info;
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enum { AttrChange, RelatedNode, AttrName, PrevValue, NewValue,
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InitMutationEvent };
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DOM::MutationEvent toMutationEvent() const { return static_cast<DOM::MutationEvent>(event); }
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};
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} // namespace
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#endif
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