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tdelibs/khtml/html/html_documentimpl.cpp

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/**
* This file is part of the DOM implementation for KDE.
*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
*
* 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 "html/html_documentimpl.h"
#include "html/html_imageimpl.h"
#include "html/html_headimpl.h"
#include "html/html_baseimpl.h"
#include "html/htmltokenizer.h"
#include "html/html_miscimpl.h"
#include "html/html_formimpl.h"
#include "khtmlview.h"
#include "khtml_part.h"
#include "khtmlpart_p.h"
#include "khtml_settings.h"
#include "misc/htmlattrs.h"
#include "misc/htmlhashes.h"
#include "xml/xml_tokenizer.h"
#include "xml/dom2_eventsimpl.h"
#include "khtml_factory.h"
#include "rendering/render_object.h"
#include "dom/dom_exception.h"
#include <dcopclient.h>
#include <kapplication.h>
#include <kdebug.h>
#include <kurl.h>
#include <kglobal.h>
#include <kcharsets.h>
#include <kglobalsettings.h>
#include "css/cssproperties.h"
#include "css/cssstyleselector.h"
#include "css/css_stylesheetimpl.h"
#include <stdlib.h>
#include <tqptrstack.h>
// Turn off inlining to avoid warning with newer gcc.
#undef __inline
#define __inline
#include "doctypes.cpp"
#undef __inline
template class TQPtrStack<DOM::NodeImpl>;
using namespace DOM;
using namespace khtml;
HTMLDocumentImpl::HTMLDocumentImpl(DOMImplementationImpl *_implementation, KHTMLView *v)
: DocumentImpl(_implementation, v)
{
// kdDebug( 6090 ) << "HTMLDocumentImpl constructor this = " << this << endl;
htmlElement = 0;
m_doAutoFill = false;
/* dynamic history stuff to be fixed later (pfeiffer)
connect( KHTMLFactory::vLinks(), TQT_SIGNAL( removed( const TQString& )),
TQT_SLOT( slotHistoryChanged() ));
*/
connect( KHTMLFactory::vLinks(), TQT_SIGNAL( inserted( const TQString& ) ),
TQT_SLOT( slotHistoryChanged() ));
connect( KHTMLFactory::vLinks(), TQT_SIGNAL( cleared()),
TQT_SLOT( slotHistoryChanged() ));
}
HTMLDocumentImpl::~HTMLDocumentImpl()
{
}
DOMString HTMLDocumentImpl::referrer() const
{
if ( view() )
return view()->part()->pageReferrer();
return DOMString();
}
DOMString HTMLDocumentImpl::lastModified() const
{
if ( view() )
return view()->part()->lastModified();
return DOMString();
}
DOMString HTMLDocumentImpl::cookie() const
{
long windowId = 0;
KHTMLView *v = view ();
if ( v && v->topLevelWidget() )
windowId = v->topLevelWidget()->winId();
TQCString replyType;
TQByteArray params, reply;
TQDataStream stream(params, IO_WriteOnly);
stream << URL().url() << windowId;
if (!kapp->dcopClient()->call("kcookiejar", "kcookiejar",
"findDOMCookies(TQString,long int)", params,
replyType, reply))
{
kdWarning(6010) << "Can't communicate with cookiejar!" << endl;
return DOMString();
}
TQDataStream stream2(reply, IO_ReadOnly);
if(replyType != "TQString") {
kdError(6010) << "DCOP function findDOMCookies(...) returns "
<< replyType << ", expected TQString" << endl;
return DOMString();
}
TQString result;
stream2 >> result;
return DOMString(result);
}
void HTMLDocumentImpl::setCookie( const DOMString & value )
{
long windowId = 0;
KHTMLView *v = view ();
if ( v && v->topLevelWidget() )
windowId = v->topLevelWidget()->winId();
TQByteArray params;
TQDataStream stream(params, IO_WriteOnly);
TQCString fake_header("Set-Cookie: ");
fake_header.append(value.string().latin1());
fake_header.append("\n");
stream << URL().url() << fake_header << windowId;
if (!kapp->dcopClient()->send("kcookiejar", "kcookiejar",
"addCookies(TQString,TQCString,long int)", params))
{
// Maybe it wasn't running (e.g. we're opening local html files)
KApplication::startServiceByDesktopName( "kcookiejar");
if (!kapp->dcopClient()->send("kcookiejar", "kcookiejar",
"addCookies(TQString,TQCString,long int)", params))
kdWarning(6010) << "Can't communicate with cookiejar!" << endl;
}
}
HTMLElementImpl *HTMLDocumentImpl::body()
{
NodeImpl *de = documentElement();
if (!de)
return 0;
// try to prefer a FRAMESET element over BODY
NodeImpl* body = 0;
for (NodeImpl* i = de->firstChild(); i; i = i->nextSibling()) {
if (i->id() == ID_FRAMESET)
return static_cast<HTMLElementImpl*>(i);
if (i->id() == ID_BODY)
body = i;
}
return static_cast<HTMLElementImpl *>(body);
}
void HTMLDocumentImpl::setBody(HTMLElementImpl *_body, int& exceptioncode)
{
HTMLElementImpl *b = body();
if ( !_body ) {
exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
return;
}
if ( !b )
documentElement()->appendChild( _body, exceptioncode );
else
documentElement()->replaceChild( _body, b, exceptioncode );
}
Tokenizer *HTMLDocumentImpl::createTokenizer()
{
return new HTMLTokenizer(docPtr(),m_view);
}
// --------------------------------------------------------------------------
// not part of the DOM
// --------------------------------------------------------------------------
bool HTMLDocumentImpl::childAllowed( NodeImpl *newChild )
{
// ### support comments. etc as a child
return (newChild->id() == ID_HTML || newChild->id() == ID_COMMENT);
}
ElementImpl *HTMLDocumentImpl::createElement( const DOMString &name, int* pExceptioncode )
{
ElementImpl *e = createHTMLElement(name);
if ( e ) {
e->setHTMLCompat( htmlMode() != XHtml );
return e;
}
return DocumentImpl::createElement(name, pExceptioncode);
}
void HTMLDocumentImpl::slotHistoryChanged()
{
if ( true || !m_render )
return;
recalcStyle( Force );
m_render->tqrepaint();
}
HTMLMapElementImpl* HTMLDocumentImpl::getMap(const DOMString& _url)
{
TQString url = _url.string();
TQString s;
int pos = url.find('#');
//kdDebug(0) << "map pos of #:" << pos << endl;
s = TQString(_url.tqunicode() + pos + 1, _url.length() - pos - 1);
TQMapConstIterator<TQString,HTMLMapElementImpl*> it = mapMap.find(s);
if (it != mapMap.end())
return *it;
else
return 0;
}
void HTMLDocumentImpl::close()
{
bool doload = !parsing() && m_tokenizer;
DocumentImpl::close();
if (doload) {
if (title().isEmpty()) // ensure setTitle is called at least once
setTitle( DOMString() );
// auto fill: walk the tree and try to fill in login credentials
if (view() && m_doAutoFill) {
for (NodeImpl* n = this; n; n = n->traverseNextNode())
if (n->id() == ID_FORM)
static_cast<HTMLFormElementImpl*>(n)->doAutoFill();
m_doAutoFill = false;
}
// According to dom the load event must not bubble
// but other browsers execute in a frameset document
// the first(IE)/last(Moz/Konq) registered onload on a <frame> and the
// first(IE)/last(Moz/Konq) registered onload on a <frameset>.
//kdDebug() << "dispatching LOAD_EVENT on document " << getDocument() << " " << (view()?view()->part()->name():0) << endl;
//Make sure to flush any pending image events now, as we want them out before the document's load event
dispatchImageLoadEventsNow();
getDocument()->dispatchWindowEvent(EventImpl::LOAD_EVENT, false, false);
// don't update rendering if we're going to redirect anyway
if ( view() && ( view()->part()->d->m_redirectURL.isNull() ||
view()->part()->d->m_delayRedirect > 1 ) )
updateRendering();
}
}
const int PARSEMODE_HAVE_DOCTYPE = (1<<0);
const int PARSEMODE_HAVE_PUBLIC_ID = (1<<1);
const int PARSEMODE_HAVE_SYSTEM_ID = (1<<2);
const int PARSEMODE_HAVE_INTERNAL = (1<<3);
static int parseDocTypePart(const TQString& buffer, int index)
{
while (true) {
TQChar ch = buffer[index];
if (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r')
++index;
else if (ch == '-') {
int tmpIndex=index;
if (buffer[index+1] == '-' &&
((tmpIndex=buffer.find("--", index+2)) != -1))
index = tmpIndex+2;
else
return index;
}
else
return index;
}
}
static bool containsString(const char* str, const TQString& buffer, int offset)
{
TQString startString(str);
if (offset + startString.length() > buffer.length())
return false;
TQString bufferString = buffer.mid(offset, startString.length()).lower();
TQString lowerStart = startString.lower();
return bufferString.startsWith(lowerStart);
}
static bool parseDocTypeDeclaration(const TQString& buffer,
int* resultFlags,
TQString& publicID,
TQString& systemID)
{
bool haveDocType = false;
*resultFlags = 0;
// Skip through any comments and processing instructions.
int index = 0;
do {
index = buffer.find('<', index);
if (index == -1) break;
TQChar nextChar = buffer[index+1];
if (nextChar == '!') {
if (containsString("doctype", buffer, index+2)) {
haveDocType = true;
index += 9; // Skip "<!DOCTYPE"
break;
}
index = parseDocTypePart(buffer,index);
index = buffer.find('>', index);
}
else if (nextChar == '?')
index = buffer.find('>', index);
else
break;
} while (index != -1);
if (!haveDocType)
return true;
*resultFlags |= PARSEMODE_HAVE_DOCTYPE;
index = parseDocTypePart(buffer, index);
if (!containsString("html", buffer, index))
return false;
index = parseDocTypePart(buffer, index+4);
bool hasPublic = containsString("public", buffer, index);
if (hasPublic) {
index = parseDocTypePart(buffer, index+6);
// We've read <!DOCTYPE HTML PUBLIC (not case sensitive).
// Now we find the beginning and end of the public identifers
// and system identifiers (assuming they're even present).
TQChar theChar = buffer[index];
if (theChar != '\"' && theChar != '\'')
return false;
// |start| is the first character (after the quote) and |end|
// is the final quote, so there are |end|-|start| characters.
int publicIDStart = index+1;
int publicIDEnd = buffer.find(theChar, publicIDStart);
if (publicIDEnd == -1)
return false;
index = parseDocTypePart(buffer, publicIDEnd+1);
TQChar next = buffer[index];
if (next == '>') {
// Public identifier present, but no system identifier.
// Do nothing. Note that this is the most common
// case.
}
else if (next == '\"' || next == '\'') {
// We have a system identifier.
*resultFlags |= PARSEMODE_HAVE_SYSTEM_ID;
int systemIDStart = index+1;
int systemIDEnd = buffer.find(next, systemIDStart);
if (systemIDEnd == -1)
return false;
systemID = buffer.mid(systemIDStart, systemIDEnd - systemIDStart);
}
else if (next == '[') {
// We found an internal subset.
*resultFlags |= PARSEMODE_HAVE_INTERNAL;
}
else
return false; // Something's wrong.
// We need to trim whitespace off the public identifier.
publicID = buffer.mid(publicIDStart, publicIDEnd - publicIDStart);
publicID = publicID.simplifyWhiteSpace();
*resultFlags |= PARSEMODE_HAVE_PUBLIC_ID;
} else {
if (containsString("system", buffer, index)) {
// Doctype has a system ID but no public ID
*resultFlags |= PARSEMODE_HAVE_SYSTEM_ID;
index = parseDocTypePart(buffer, index+6);
TQChar next = buffer[index];
if (next != '\"' && next != '\'')
return false;
int systemIDStart = index+1;
int systemIDEnd = buffer.find(next, systemIDStart);
if (systemIDEnd == -1)
return false;
systemID = buffer.mid(systemIDStart, systemIDEnd - systemIDStart);
index = parseDocTypePart(buffer, systemIDEnd+1);
}
TQChar nextChar = buffer[index];
if (nextChar == '[')
*resultFlags |= PARSEMODE_HAVE_INTERNAL;
else if (nextChar != '>')
return false;
}
return true;
}
void HTMLDocumentImpl::determineParseMode( const TQString &str )
{
//kdDebug() << "DocumentImpl::determineParseMode str=" << str<< endl;
int oldPMode = pMode;
// This code more or less mimics Mozilla's implementation (specifically the
// doctype parsing implemented by David Baron in Mozilla's nsParser.cpp).
//
// There are three possible parse modes:
// COMPAT - quirks mode emulates WinIE
// and NS4. CSS parsing is also relaxed in this mode, e.g., unit types can
// be omitted from numbers.
// ALMOST STRICT - This mode is identical to strict mode
// except for its treatment of line-height in the inline box model. For
// now (until the inline box model is re-written), this mode is identical
// to STANDARDS mode.
// STRICT - no quirks apply. Web pages will obey the specifications to
// the letter.
TQString systemID, publicID;
int resultFlags = 0;
if (parseDocTypeDeclaration(str, &resultFlags, publicID, systemID)) {
if (resultFlags & PARSEMODE_HAVE_DOCTYPE) {
m_doctype->setName("HTML");
m_doctype->setPublicId(publicID);
m_doctype->setSystemId(systemID);
}
if (!(resultFlags & PARSEMODE_HAVE_DOCTYPE)) {
// No doctype found at all. Default to quirks mode and Html4.
pMode = Compat;
hMode = Html4;
}
else if ((resultFlags & PARSEMODE_HAVE_INTERNAL) ||
!(resultFlags & PARSEMODE_HAVE_PUBLIC_ID)) {
// Internal subsets always denote full standards, as does
// a doctype without a public ID.
pMode = Strict;
hMode = Html4;
}
else {
// We have to check a list of public IDs to see what we
// should do.
TQString lowerPubID = publicID.lower();
const char* pubIDStr = lowerPubID.latin1();
// Look up the entry in our gperf-generated table.
const PubIDInfo* doctypeEntry = findDoctypeEntry(pubIDStr, publicID.length());
if (!doctypeEntry) {
// The DOCTYPE is not in the list. Assume strict mode.
// ### Doesn't make any sense, but it's what Mozilla does.
pMode = Strict;
hMode = Html4;
return;
}
switch ((resultFlags & PARSEMODE_HAVE_SYSTEM_ID) ?
doctypeEntry->mode_if_sysid :
doctypeEntry->mode_if_no_sysid)
{
case PubIDInfo::eQuirks3:
pMode = Compat;
hMode = Html3;
break;
case PubIDInfo::eQuirks:
pMode = Compat;
hMode = Html4;
break;
case PubIDInfo::eAlmostStandards:
pMode = Transitional;
hMode = Html4;
break;
default:
assert(false);
}
}
}
else {
// Malformed doctype implies quirks mode.
pMode = Compat;
hMode = Html3;
}
// This needs to be done last, see tests/parser/compatmode_xhtml_mixed.html
if ( hMode == Html4 && !m_htmlRequested ) {
// this part is still debatable and possibly UA dependent
hMode = XHtml;
pMode = Transitional;
}
m_styleSelector->strictParsing = !inCompatMode();
// kdDebug() << "DocumentImpl::determineParseMode: publicId =" << publicID << " systemId = " << systemID << endl;
// kdDebug() << "DocumentImpl::determineParseMode: htmlMode = " << hMode<< endl;
if( pMode == Strict )
kdDebug(6030) << " using strict parseMode" << endl;
else if (pMode == Compat )
kdDebug(6030) << " using compatibility parseMode" << endl;
else
kdDebug(6030) << " using transitional parseMode" << endl;
// not sure this is needed
if ( pMode != oldPMode && styleSelector() )
recalcStyleSelector();
}
#include "html_documentimpl.moc"
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