dom2_events.cpp

konqueror3 embedded版本, KDE环境下的当家浏览器的嵌入式版本源码包.

/**
 * This file is part of the DOM implementation for KDE.
 *
 * (C) 2001 Peter Kelly ([e-mail])
 *
 * 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.
 *
 */

#include "dom/dom2_views.h"
#include "dom/dom_exception.h"
#include "xml/dom2_eventsimpl.h"

using namespace DOM;

EventListener::EventListener()
{
}

EventListener::~EventListener()
{
}

void EventListener::handleEvent(Event &/*evt*/)
{
}

DOMString EventListener::eventListenerType()
{
    return "";
}

// -----------------------------------------------------------------------------

Event::Event()
{
    impl = 0;
}


Event::Event(const Event &other)
{
    impl = other.impl;
    if (impl) impl->ref();
}

Event::Event(EventImpl *i)
{
    impl = i;
    if (impl) impl->ref();
}

Event::~Event()
{
    if (impl) impl->deref();
}

Event &Event::operator = (const Event &other)
{
    if ( impl != other.impl ) {
        if(impl) impl->deref();
        impl = other.impl;
        if(impl) impl->ref();
    }
    return *this;
}

DOMString Event::type() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->type();
}

Node Event::target() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->target();
}

Node Event::currentTarget() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->currentTarget();
}

unsigned short Event::eventPhase() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->eventPhase();
}

bool Event::bubbles() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->bubbles();
}

bool Event::cancelable() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->cancelable();
}

DOMTimeStamp Event::timeStamp() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return impl->timeStamp();
}

void Event::stopPropagation()
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    impl->stopPropagation(true);
}

void Event::preventDefault()
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    impl->preventDefault(true);
}

void Event::initEvent(const DOMString &eventTypeArg, bool canBubbleArg, bool cancelableArg)
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    impl->initEvent(eventTypeArg,canBubbleArg,cancelableArg);
}

EventImpl *Event::handle() const
{
    return impl;
}

bool Event::isNull() const
{
    return (impl == 0);
}

// -----------------------------------------------------------------------------

#ifndef SAVE_SPACE

EventException::EventException(unsigned short _code)
{
    code = _code;
}

EventException::EventException(const EventException &other)
{
    code = other.code;
}

EventException & EventException::operator = (const EventException &other)
{
    code = other.code;
    return *this;
}

#endif

// -----------------------------------------------------------------------------

UIEvent::UIEvent() : Event()
{
}

UIEvent::UIEvent(const UIEvent &other) : Event(other)
{
}

UIEvent::UIEvent(const Event &other) : Event()
{
    (*this)=other;
}

UIEvent::UIEvent(UIEventImpl *impl) : Event(impl)
{
}

UIEvent &UIEvent::operator = (const UIEvent &other)
{
    Event::operator = (other);
    return *this;
}

UIEvent &UIEvent::operator = (const Event &other)
{
    Event e;
    e = other;
    if (!e.isNull() && !e.handle()->isUIEvent()) {
	if ( impl ) impl->deref();
	impl = 0;
    } else
	Event::operator = (other);
    return *this;
}

UIEvent::~UIEvent()
{
}

AbstractView UIEvent::view() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return static_cast<UIEventImpl*>(impl)->view();
}

long UIEvent::detail() const
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    return static_cast<UIEventImpl*>(impl)->detail();
}

int UIEvent::keyCode() const
{
    if ( !impl ) throw DOMException( DOMException::INVALID_STATE_ERR );

    if( impl->isTextEvent() )
        return static_cast<TextEventImpl*>( impl )->keyCode();

    return 0;
}

int UIEvent::charCode() const
{
    if (!impl)
        throw DOMException(DOMException::INVALID_STATE_ERR);

    if( impl->isTextEvent() )
        return static_cast<TextEventImpl*>( impl )->charCode();

    return 0;
}

int UIEvent::pageX() const
{
    if (!impl)
        throw DOMException(DOMException::INVALID_STATE_ERR);

    if (impl->isMouseEvent() )
        return static_cast<MouseEventImpl*>( impl )->pageX();
    else
        return 0;
}

int UIEvent::pageY() const
{
    if (!impl)
        throw DOMException(DOMException::INVALID_STATE_ERR);

    if ( impl->isMouseEvent() )
        return  static_cast<MouseEventImpl*>( impl )->pageY();
    else
        return 0;
}

int UIEvent::layerX() const
{
    if( !impl )
        throw DOMException( DOMException::INVALID_STATE_ERR );

    if( impl->isMouseEvent() )
        return static_cast<MouseEventImpl*>( impl )->layerX();
    return 0;
}

int UIEvent::layerY() const
{
    if( !impl )
        throw DOMException( DOMException::INVALID_STATE_ERR );

    if( impl->isMouseEvent() )
        return static_cast<MouseEventImpl*>( impl )->layerY();
    return 0;
}

int UIEvent::which() const
{
    if( !impl ) throw DOMException( DOMException::INVALID_STATE_ERR );

    if( impl->isMouseEvent() )
        return static_cast<MouseEventImpl*>( impl )->button() + 1;
    else if( impl->isTextEvent() )
        return static_cast<TextEventImpl*>( impl )->keyCode();

    return 0;
}

void UIEvent::initUIEvent(const DOMString &typeArg,
                                 bool canBubbleArg,
                                 bool cancelableArg,
                                 const AbstractView &viewArg,
                                 long detailArg)
{
    if (!impl)
	throw DOMException(DOMException::INVALID_STATE_ERR);

    static_cast<UIEventImpl*>(impl)->initUIEvent(typeArg,canBubbleArg,cancelableArg,
						 viewArg,detailArg);
}

// -----------------------------------------------------------------------------

MouseEvent::MouseEvent() : UIEvent()
{
}

MouseEvent::MouseEvent(const MouseEvent &other) : UIEvent(other)
{
}

MouseEvent::MouseEvent(const Event &other) : UIEvent()