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// -*- c-basic-offset: 2 -*-
/*
* This file is part of the KDE libraries
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2003 Apple Computer, Inc.
*
* 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _KJS_EVENTS_H_
#define _KJS_EVENTS_H_
#include "ecma/kjs_dom.h"
#include "dom/dom2_events.h"
#include "dom/dom_misc.h"
#include "xml/dom2_eventsimpl.h"
namespace KJS {
class Window;
class JSEventListener : public DOM::EventListener {
public:
/**
* @param _listener the function object, that will be called when the event is emitted
* @param _compareListenerImp Compare Listener implementation.
* @param _win Window object, for memory management and caching.
* @param _html \c true if it is HTML.
* Never create a JSEventListener directly, use Window::getJSEventListener.
*/
JSEventListener(Object _listener, ObjectImp *_compareListenerImp, const Object &_win, bool _html = false);
virtual ~JSEventListener();
virtual void handleEvent(DOM::Event &evt);
virtual DOM::DOMString eventListenerType();
// Return the KJS function object executed when this event is emitted
virtual Object listenerObj() const;
ObjectImp *listenerObjImp() const { return listenerObj().imp(); }
// for Window::clear(). This is a bad hack though. The JSEventListener might not get deleted
// if it was added to a DOM node in another frame (#61467). But calling removeEventListener on
// all nodes we're listening to is quite difficult.
void clear() { listener = Object(); }
bool isHTMLEventListener() const { return html; }
protected:
mutable Object listener;
// Storing a different ObjectImp ptr is needed to support addEventListener(.. [Object] ..) calls
// In the real-life case (where a 'function' is passed to addEventListener) we can directly call
// the 'listener' object and can cache the 'listener.imp()'. If the event listener should be removed
// the implementation will call removeEventListener(.. [Function] ..), and we can lookup the event
// listener by the passed function's imp() ptr.
// In the only dom-approved way (passing an Object to add/removeEventListener), the 'listener'
// variable stores the function object 'passedListener.handleEvent'. But we need to cache
// the imp() ptr of the 'passedListener' function _object_, as the implementation will
// call removeEventListener(.. [Object ..] on removal, and now we can successfully lookup
// the correct event listener, as well as the 'listener.handleEvent' function, we need to call.
mutable ObjectImp *compareListenerImp;
bool html;
Object win;
};
class JSLazyEventListener : public JSEventListener {
public:
JSLazyEventListener(const QString &_code, const QString &_name, const Object &_win, DOM::NodeImpl* node);
~JSLazyEventListener();
virtual void handleEvent(DOM::Event &evt);
Object listenerObj() const;
private:
void parseCode() const;
mutable QString code;
mutable QString name;
mutable bool parsed;
DOM::NodeImpl *originalNode;
};
// Constructor for Event - currently only used for some global vars
DEFINE_PSEUDO_CONSTRUCTOR(EventConstructor)
class DOMEvent : public DOMObject {
public:
// Build a DOMEvent
DOMEvent(ExecState *exec, DOM::Event e);
// Constructor for inherited classes
DOMEvent(const Object &proto, DOM::Event e);
~DOMEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
virtual void tryPut(ExecState *exec, const Identifier &propertyName,
const Value& value, int attr = None);
virtual Value defaultValue(ExecState *exec, KJS::Type hint) const;
void putValueProperty(ExecState *exec, int token, const Value& value, int);
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum { Type, Target, CurrentTarget, EventPhase, Bubbles,
Cancelable, TimeStamp, StopPropagation, PreventDefault, InitEvent,
// MS IE equivalents
SrcElement, ReturnValue, CancelBubble };
DOM::Event toEvent() const { return event; }
protected:
DOM::Event event;
};
Value getDOMEvent(ExecState *exec, DOM::Event e);
/**
* Convert an object to an Event. Returns a null Event if not possible.
*/
DOM::Event toEvent(const Value&);
// Constructor object EventException
class EventExceptionConstructor : public DOMObject {
public:
EventExceptionConstructor(ExecState *);
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
};
Value getEventExceptionConstructor(ExecState *exec);
class DOMUIEvent : public DOMEvent {
public:
// Build a DOMUIEvent
DOMUIEvent(ExecState *exec, DOM::UIEvent ue);
// Constructor for inherited classes
DOMUIEvent(const Object &proto, DOM::UIEvent ue);
~DOMUIEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum { View, Detail, KeyCode, CharCode, LayerX, LayerY, PageX, PageY, Which, InitUIEvent };
DOM::UIEvent toUIEvent() const { return static_cast<DOM::UIEvent>(event); }
};
class DOMMouseEvent : public DOMUIEvent {
public:
DOMMouseEvent(ExecState *exec, DOM::MouseEvent me);
~DOMMouseEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum { ScreenX, ScreenY, ClientX, X, ClientY, Y, OffsetX, OffsetY,
CtrlKey, ShiftKey, AltKey,
MetaKey, Button, RelatedTarget, FromElement, ToElement,
InitMouseEvent
};
DOM::MouseEvent toMouseEvent() const { return static_cast<DOM::MouseEvent>(event); }
};
class DOMKeyEventBase : public DOMUIEvent {
public:
DOMKeyEventBase(const Object &proto, DOM::TextEvent ke);
~DOMKeyEventBase();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum { Key, VirtKey, CtrlKey, ShiftKey, AltKey, MetaKey };
DOM::KeyEventBaseImpl* impl() const { return static_cast<DOM::KeyEventBaseImpl*>(event.handle()); }
};
class DOMTextEvent : public DOMKeyEventBase {
public:
DOMTextEvent(ExecState *exec, DOM::TextEvent ke);
~DOMTextEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum {Data, InitTextEvent};
DOM::TextEventImpl* impl() const { return static_cast<DOM::TextEventImpl*>(event.handle()); }
};
class DOMKeyboardEvent : public DOMKeyEventBase {
public:
DOMKeyboardEvent(ExecState *exec, DOM::TextEvent ke);
~DOMKeyboardEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum {KeyIdentifier, KeyLocation, GetModifierState, InitKeyboardEvent};
DOM::KeyboardEventImpl* impl() const { return static_cast<DOM::KeyboardEventImpl*>(event.handle()); }
};
// Constructor object KeyboardEvent
class KeyboardEventConstructor : public DOMObject {
public:
KeyboardEventConstructor(ExecState *);
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
};
Value getKeyboardEventConstructor(ExecState *exec);
// Constructor object MutationEvent
class MutationEventConstructor : public DOMObject {
public:
MutationEventConstructor(ExecState *);
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
};
Value getMutationEventConstructor(ExecState *exec);
class DOMMutationEvent : public DOMEvent {
public:
DOMMutationEvent(ExecState *exec, DOM::MutationEvent me);
~DOMMutationEvent();
virtual Value tryGet(ExecState *exec,const Identifier &p) const;
Value getValueProperty(ExecState *, int token) const;
// no put - all read-only
virtual const ClassInfo* classInfo() const { return &info; }
static const ClassInfo info;
enum { AttrChange, RelatedNode, AttrName, PrevValue, NewValue,
InitMutationEvent };
DOM::MutationEvent toMutationEvent() const { return static_cast<DOM::MutationEvent>(event); }
};
} // namespace
#endif
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