kjs_dom.cpp

手机浏览器源码程序,功能强大

// -*- c-basic-offset: 2 -*-
/*
 *  This file is part of the KDE libraries
 *  Copyright (C) 2000 Harri Porten ([e-mail])
 *  Copyright (C) 2004 Apple Computer, Inc.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <khtmlview.h>
#include "xml/dom2_eventsimpl.h"
#include "rendering/render_canvas.h"
#include "xml/dom_nodeimpl.h"
#include "xml/dom_docimpl.h"
#include <kdebug.h>
#include <khtml_part.h>

#include "kjs_dom.h"
#include "kjs_html.h"
#include "kjs_css.h"
#include "kjs_range.h"
#include "kjs_traversal.h"
#include "kjs_events.h"
#include "kjs_views.h"
#include "kjs_window.h"
#include "dom/dom_exception.h"
#include "kjs_dom.lut.h"
#include "khtmlpart_p.h"

#include "html_objectimpl.h"

#include "misc/htmltags.h"

#if APPLE_CHANGES && !NOKIA_CHANGES
#include <JavaScriptCore/runtime_object.h>
#endif

using namespace KJS;

using DOM::DOMException;
using DOM::DOMString;
using DOM::NodeFilter;

// -------------------------------------------------------------------------
/* Source for DOMNodeProtoTable. Use "make hashtables" to regenerate.
@begin DOMNodeProtoTable 13
  insertBefore	DOMNode::InsertBefore	DontDelete|Function 2
  replaceChild	DOMNode::ReplaceChild	DontDelete|Function 2
  removeChild	DOMNode::RemoveChild	DontDelete|Function 1
  appendChild	DOMNode::AppendChild	DontDelete|Function 1
  hasAttributes	DOMNode::HasAttributes	DontDelete|Function 0
  hasChildNodes	DOMNode::HasChildNodes	DontDelete|Function 0
  cloneNode	DOMNode::CloneNode	DontDelete|Function 1
# DOM2
  normalize	DOMNode::Normalize	DontDelete|Function 0
  isSupported   DOMNode::IsSupported	DontDelete|Function 2
# from the EventTarget interface
  addEventListener	DOMNode::AddEventListener	DontDelete|Function 3
  removeEventListener	DOMNode::RemoveEventListener	DontDelete|Function 3
  dispatchEvent		DOMNode::DispatchEvent	DontDelete|Function 1
  contains	DOMNode::Contains		DontDelete|Function 1
# "DOM level 0" (from Gecko DOM reference; also in WinIE)
  item          DOMNode::Item           DontDelete|Function 1
@end
*/
DEFINE_PROTOTYPE("DOMNode",DOMNodeProto)
IMPLEMENT_PROTOFUNC(DOMNodeProtoFunc)
IMPLEMENT_PROTOTYPE(DOMNodeProto,DOMNodeProtoFunc)

const ClassInfo DOMNode::info = { "Node", 0, &DOMNodeTable, 0 };

DOMNode::DOMNode(ExecState *exec, const DOM::Node &n)
  : DOMObject(DOMNodeProto::self(exec)), node(n)
{
}

DOMNode::DOMNode(const Object &proto, const DOM::Node &n)
  : DOMObject(proto), node(n)
{
}

bool DOMNode::toBoolean(ExecState *) const
{
    return !node.isNull();
}

/* Source for DOMNodeTable. Use "make hashtables" to regenerate.
@begin DOMNodeTable 67
  nodeName	DOMNode::NodeName	DontDelete|ReadOnly
  nodeValue	DOMNode::NodeValue	DontDelete
  nodeType	DOMNode::NodeType	DontDelete|ReadOnly
  parentNode	DOMNode::ParentNode	DontDelete|ReadOnly
  parentElement	DOMNode::ParentElement	DontDelete|ReadOnly
  childNodes	DOMNode::ChildNodes	DontDelete|ReadOnly
  firstChild	DOMNode::FirstChild	DontDelete|ReadOnly
  lastChild	DOMNode::LastChild	DontDelete|ReadOnly
  previousSibling  DOMNode::PreviousSibling DontDelete|ReadOnly
  nextSibling	DOMNode::NextSibling	DontDelete|ReadOnly
  attributes	DOMNode::Attributes	DontDelete|ReadOnly
  namespaceURI	DOMNode::NamespaceURI	DontDelete|ReadOnly
# DOM2
  prefix	DOMNode::Prefix		DontDelete
  localName	DOMNode::LocalName	DontDelete|ReadOnly
  ownerDocument	DOMNode::OwnerDocument	DontDelete|ReadOnly
#
  onabort	DOMNode::OnAbort		DontDelete
  onblur	DOMNode::OnBlur			DontDelete
  onchange	DOMNode::OnChange		DontDelete
  onclick	DOMNode::OnClick		DontDelete
  oncontextmenu	DOMNode::OnContextMenu		DontDelete
  ondblclick	DOMNode::OnDblClick		DontDelete
  onbeforecut	DOMNode::OnBeforeCut		DontDelete
  oncut         DOMNode::OnCut                  DontDelete
  onbeforecopy	DOMNode::OnBeforeCopy		DontDelete
  oncopy	DOMNode::OnCopy                 DontDelete
  onbeforepaste	DOMNode::OnBeforePaste		DontDelete
  onpaste	DOMNode::OnPaste		DontDelete
  ondrag	DOMNode::OnDrag			DontDelete
  ondragdrop	DOMNode::OnDragDrop		DontDelete
  ondragend	DOMNode::OnDragEnd		DontDelete
  ondragenter	DOMNode::OnDragEnter		DontDelete
  ondragleave	DOMNode::OnDragLeave		DontDelete
  ondragover	DOMNode::OnDragOver		DontDelete
  ondragstart	DOMNode::OnDragStart		DontDelete
  ondrop	DOMNode::OnDrop                 DontDelete
  onerror	DOMNode::OnError		DontDelete
  onfocus	DOMNode::OnFocus       		DontDelete
  oninput       DOMNode::OnInput                DontDelete
  onkeydown	DOMNode::OnKeyDown		DontDelete
  onkeypress	DOMNode::OnKeyPress		DontDelete
  onkeyup	DOMNode::OnKeyUp		DontDelete
  onload	DOMNode::OnLoad			DontDelete
  onmousedown	DOMNode::OnMouseDown		DontDelete
  onmousemove	DOMNode::OnMouseMove		DontDelete
  onmouseout	DOMNode::OnMouseOut		DontDelete
  onmouseover	DOMNode::OnMouseOver		DontDelete
  onmouseup	DOMNode::OnMouseUp		DontDelete
  onmove	DOMNode::OnMove			DontDelete
  onreset	DOMNode::OnReset		DontDelete
  onresize	DOMNode::OnResize		DontDelete
  onscroll      DOMNode::OnScroll               DontDelete
  onsearch      DOMNode::OnSearch               DontDelete
  onselect	DOMNode::OnSelect		DontDelete
  onselectstart	DOMNode::OnSelectStart		DontDelete
  onsubmit	DOMNode::OnSubmit		DontDelete
  onunload	DOMNode::OnUnload		DontDelete
# IE extensions
  offsetLeft	DOMNode::OffsetLeft		DontDelete|ReadOnly
  offsetTop	DOMNode::OffsetTop		DontDelete|ReadOnly
  offsetWidth	DOMNode::OffsetWidth		DontDelete|ReadOnly
  offsetHeight	DOMNode::OffsetHeight		DontDelete|ReadOnly
  offsetParent	DOMNode::OffsetParent		DontDelete|ReadOnly
  clientWidth	DOMNode::ClientWidth		DontDelete|ReadOnly
  clientHeight	DOMNode::ClientHeight		DontDelete|ReadOnly
  scrollLeft	DOMNode::ScrollLeft		DontDelete
  scrollTop	DOMNode::ScrollTop		DontDelete
  scrollWidth   DOMNode::ScrollWidth            DontDelete|ReadOnly
  scrollHeight  DOMNode::ScrollHeight           DontDelete|ReadOnly
@end
*/
Value DOMNode::tryGet(ExecState *exec, const Identifier &propertyName) const
{
#ifdef KJS_VERBOSE
  kdDebug(6070) << "DOMNode::tryGet " << propertyName.qstring() << endl;
#endif
  return DOMObjectLookupGetValue<DOMNode, DOMObject>(exec, propertyName, &DOMNodeTable, this);
}

Value DOMNode::getValueProperty(ExecState *exec, int token) const
{
  switch (token) {
  case NodeName:
    return getStringOrNull(node.nodeName());
  case NodeValue:
    return getStringOrNull(node.nodeValue());
  case NodeType:
    return Number((unsigned int)node.nodeType());
  case ParentNode:
    return getDOMNode(exec,node.parentNode());
  case ParentElement: // IE only apparently
    return getDOMNode(exec,node.parentNode());
  case ChildNodes:
    return getDOMNodeList(exec,node.childNodes());
  case FirstChild:
    return getDOMNode(exec,node.firstChild());
  case LastChild:
    return getDOMNode(exec,node.lastChild());
  case PreviousSibling:
    return getDOMNode(exec,node.previousSibling());
  case NextSibling:
    return getDOMNode(exec,node.nextSibling());
  case Attributes:
    return getDOMNamedNodeMap(exec,node.attributes());
  case NamespaceURI:
    return getStringOrNull(node.namespaceURI());
  case Prefix:
    return getStringOrNull(node.prefix());
  case LocalName:
    return getStringOrNull(node.localName());
  case OwnerDocument:
    return getDOMNode(exec,node.ownerDocument());
  case OnAbort:
    return getListener(DOM::EventImpl::ABORT_EVENT);
  case OnBlur:
    return getListener(DOM::EventImpl::BLUR_EVENT);
  case OnChange:
    return getListener(DOM::EventImpl::CHANGE_EVENT);
  case OnClick:
    return getListener(DOM::EventImpl::KHTML_CLICK_EVENT);
  case OnContextMenu:
    return getListener(DOM::EventImpl::CONTEXTMENU_EVENT);
  case OnDblClick:
    return getListener(DOM::EventImpl::KHTML_DBLCLICK_EVENT);
  case OnDragDrop:
    return getListener(DOM::EventImpl::KHTML_DRAGDROP_EVENT);
  case OnError:
    return getListener(DOM::EventImpl::KHTML_ERROR_EVENT);
  case OnFocus:
    return getListener(DOM::EventImpl::FOCUS_EVENT);
  case OnInput:
    return getListener(DOM::EventImpl::INPUT_EVENT);
  case OnKeyDown:
    return getListener(DOM::EventImpl::KEYDOWN_EVENT);
  case OnKeyPress:
    return getListener(DOM::EventImpl::KEYPRESS_EVENT);
  case OnKeyUp:
    return getListener(DOM::EventImpl::KEYUP_EVENT);
  case OnLoad:
    return getListener(DOM::EventImpl::LOAD_EVENT);
  case OnMouseDown:
    return getListener(DOM::EventImpl::MOUSEDOWN_EVENT);
  case OnMouseMove:
    return getListener(DOM::EventImpl::MOUSEMOVE_EVENT);
  case OnMouseOut:
    return getListener(DOM::EventImpl::MOUSEOUT_EVENT);
  case OnMouseOver:
    return getListener(DOM::EventImpl::MOUSEOVER_EVENT);
  case OnMouseUp:
    return getListener(DOM::EventImpl::MOUSEUP_EVENT);      
  case OnBeforeCut:
    return getListener(DOM::EventImpl::BEFORECUT_EVENT);
  case OnCut:
    return getListener(DOM::EventImpl::CUT_EVENT);
  case OnBeforeCopy:
    return getListener(DOM::EventImpl::BEFORECOPY_EVENT);
  case OnCopy:
    return getListener(DOM::EventImpl::COPY_EVENT);
  case OnBeforePaste:
    return getListener(DOM::EventImpl::BEFOREPASTE_EVENT);
  case OnPaste:
    return getListener(DOM::EventImpl::PASTE_EVENT);
  case OnDragEnter:
    return getListener(DOM::EventImpl::DRAGENTER_EVENT);
  case OnDragOver:
    return getListener(DOM::EventImpl::DRAGOVER_EVENT);
  case OnDragLeave:
    return getListener(DOM::EventImpl::DRAGLEAVE_EVENT);
  case OnDrop:
    return getListener(DOM::EventImpl::DROP_EVENT);
  case OnDragStart:
    return getListener(DOM::EventImpl::DRAGSTART_EVENT);
  case OnDrag:
    return getListener(DOM::EventImpl::DRAG_EVENT);
  case OnDragEnd:
    return getListener(DOM::EventImpl::DRAGEND_EVENT);
  case OnMove:
    return getListener(DOM::EventImpl::KHTML_MOVE_EVENT);
  case OnReset:
    return getListener(DOM::EventImpl::RESET_EVENT);
  case OnResize:
    return getListener(DOM::EventImpl::RESIZE_EVENT);
  case OnScroll:
    return getListener(DOM::EventImpl::SCROLL_EVENT);
#if APPLE_CHANGES
  case OnSearch:
    return getListener(DOM::EventImpl::SEARCH_EVENT);
#endif
  case OnSelect:
    return getListener(DOM::EventImpl::SELECT_EVENT);
  case OnSelectStart:
    return getListener(DOM::EventImpl::SELECTSTART_EVENT);
  case OnSubmit:
    return getListener(DOM::EventImpl::SUBMIT_EVENT);
  case OnUnload:
    return getListener(DOM::EventImpl::UNLOAD_EVENT);
  default:
    // no DOM standard, found in IE only

    // Make sure our layout is up to date before we allow a query on these attributes.
    DOM::DocumentImpl* docimpl = node.handle()->getDocument();
    if (docimpl) {
      docimpl->updateLayoutIgnorePendingStylesheets();
    }

    khtml::RenderObject *rend = node.handle()->renderer();

    switch (token) {
    case OffsetLeft:
      return rend ? static_cast<Value>(Number(rend->offsetLeft())) : Value(Undefined());
    case OffsetTop:
      return rend ? static_cast<Value>(Number(rend->offsetTop())) : Value(Undefined());
    case OffsetWidth:
      return rend ? static_cast<Value>(Number(rend->offsetWidth()) ) : Value(Undefined());
    case OffsetHeight:
      return rend ? static_cast<Value>(Number(rend->offsetHeight() ) ) : Value(Undefined());
    case OffsetParent: {
      khtml::RenderObject* par = rend ? rend->offsetParent() : 0;
      return getDOMNode(exec, par ? par->element() : 0);
    }
    case ClientWidth:
      return rend ? static_cast<Value>(Number(rend->clientWidth()) ) : Value(Undefined());
    case ClientHeight:
      return rend ? static_cast<Value>(Number(rend->clientHeight()) ) : Value(Undefined());
    case ScrollWidth:
        return rend ? static_cast<Value>(Number(rend->scrollWidth()) ) : Value(Undefined());
    case ScrollHeight:
        return rend ? static_cast<Value>(Number(rend->scrollHeight()) ) : Value(Undefined());
    case ScrollLeft:
      return Number(rend && rend->layer() ? rend->layer()->scrollXOffset() : 0);
    case ScrollTop:
      return Number(rend && rend->layer() ? rend->layer()->scrollYOffset() : 0);
    default:
      kdWarning() << "Unhandled token in DOMNode::getValueProperty : " << token << endl;