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-rw-r--r--khtml/html/html_elementimpl.cpp685
1 files changed, 685 insertions, 0 deletions
diff --git a/khtml/html/html_elementimpl.cpp b/khtml/html/html_elementimpl.cpp
index e69de29bb..a5931cd41 100644
--- a/khtml/html/html_elementimpl.cpp
+++ b/khtml/html/html_elementimpl.cpp
@@ -0,0 +1,685 @@
+// -*- c-basic-offset: 4; -*-
+/**
+ * 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)
+ * (C) 2003 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2002 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; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+// -------------------------------------------------------------------------
+//#define DEBUG
+//#define DEBUG_LAYOUT
+//#define PAR_DEBUG
+//#define EVENT_DEBUG
+//#define UNSUPPORTED_ATTR
+
+#include "html/dtd.h"
+#include "html/html_elementimpl.h"
+#include "html/html_documentimpl.h"
+#include "html/htmltokenizer.h"
+
+#include "misc/htmlhashes.h"
+
+#include "khtmlview.h"
+#include "khtml_part.h"
+
+#include "rendering/render_object.h"
+#include "rendering/render_replaced.h"
+#include "css/css_valueimpl.h"
+#include "css/css_stylesheetimpl.h"
+#include "css/cssproperties.h"
+#include "css/cssvalues.h"
+#include "xml/dom_textimpl.h"
+#include "xml/dom2_eventsimpl.h"
+
+#include <kdebug.h>
+#include <kglobal.h>
+#include "html_elementimpl.h"
+
+using namespace DOM;
+using namespace khtml;
+
+HTMLElementImpl::HTMLElementImpl(DocumentImpl *doc)
+ : ElementImpl( doc )
+{
+ m_htmlCompat = doc && doc->htmlMode() != DocumentImpl::XHtml;
+}
+
+HTMLElementImpl::~HTMLElementImpl()
+{
+}
+
+bool HTMLElementImpl::isInline() const
+{
+ if (renderer())
+ return ElementImpl::isInline();
+
+ switch(id()) {
+ case ID_A:
+ case ID_FONT:
+ case ID_TT:
+ case ID_U:
+ case ID_B:
+ case ID_I:
+ case ID_S:
+ case ID_STRIKE:
+ case ID_BIG:
+ case ID_SMALL:
+
+ // %phrase
+ case ID_EM:
+ case ID_STRONG:
+ case ID_DFN:
+ case ID_CODE:
+ case ID_SAMP:
+ case ID_KBD:
+ case ID_VAR:
+ case ID_CITE:
+ case ID_ABBR:
+ case ID_ACRONYM:
+
+ // %special
+ case ID_SUB:
+ case ID_SUP:
+ case ID_SPAN:
+ case ID_NOBR:
+ case ID_WBR:
+ return true;
+
+ default:
+ return ElementImpl::isInline();
+ }
+}
+
+DOMString HTMLElementImpl::namespaceURI() const
+{
+ return (!m_htmlCompat) ?
+ DOMString(XHTML_NAMESPACE) : DOMString();
+}
+
+
+DOMString HTMLElementImpl::localName() const
+{
+ // We only have a localName if we were created by createElementNS(), in which
+ // case we are an XHTML element. This also means we have a lowercase name.
+ if (!m_htmlCompat) // XHTML == not HTMLCompat
+ {
+ NodeImpl::Id _id = id();
+ DOMString tn;
+ if ( _id >= ID_LAST_TAG )
+ tn = getDocument()->getName(ElementId, _id);
+ else // HTML tag
+ tn = getTagName( _id );
+ return tn; // lowercase already
+ }
+ // createElement() always returns elements with a null localName.
+ else
+ return DOMString();
+}
+
+DOMString HTMLElementImpl::tagName() const
+{
+ DOMString tn;
+ NodeImpl::Id _id = id();
+ if ( _id >= ID_LAST_TAG )
+ tn = getDocument()->getName(ElementId, _id);
+ else // HTML tag
+ tn = getTagName( _id );
+
+ if ( m_htmlCompat )
+ tn = tn.upper();
+
+ if (m_prefix)
+ return DOMString(m_prefix) + ":" + tn;
+
+ return tn;
+}
+
+void HTMLElementImpl::parseAttribute(AttributeImpl *attr)
+{
+ DOMString indexstring;
+ switch( attr->id() )
+ {
+ case ATTR_ALIGN:
+ if (attr->val()) {
+ if ( strcasecmp(attr->value(), "middle" ) == 0 )
+ addCSSProperty( CSS_PROP_TEXT_ALIGN, CSS_VAL_CENTER );
+ else
+ addCSSProperty(CSS_PROP_TEXT_ALIGN, attr->value().lower());
+ }
+ else
+ removeCSSProperty(CSS_PROP_TEXT_ALIGN);
+ break;
+// the core attributes...
+ case ATTR_ID:
+ // unique id
+ setHasID();
+ getDocument()->incDOMTreeVersion();
+ break;
+ case ATTR_CLASS:
+ if (attr->val()) {
+ DOMString v = attr->value();
+ const TQChar* s = v.tqunicode();
+ int l = v.length();
+ while( l && !s->isSpace() )
+ l--,s++;
+ setHasClassList(l);
+ setHasClass(true);
+ } else {
+ setHasClassList(false);
+ setHasClass(false);
+ }
+ break;
+ case ATTR_NAME:
+ getDocument()->incDOMTreeVersion();
+ break;
+ case ATTR_STYLE:
+ if (m_styleDecls)
+ m_styleDecls->removeCSSHints();
+ else
+ createDecl();
+ m_styleDecls->setProperty(attr->value());
+ setChanged();
+ break;
+ case ATTR_TABINDEX:
+ indexstring=getAttribute(ATTR_TABINDEX);
+ if (indexstring.length())
+ setTabIndex(indexstring.toInt());
+ break;
+// i18n attributes
+ case ATTR_LANG:
+ break;
+ case ATTR_DIR:
+ addCSSProperty(CSS_PROP_DIRECTION, attr->value().lower());
+ addCSSProperty(CSS_PROP_UNICODE_BIDI, CSS_VAL_EMBED);
+ break;
+// standard events
+ case ATTR_ONCLICK:
+ setHTMLEventListener(EventImpl::KHTML_ECMA_CLICK_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onclick", this));
+ break;
+ case ATTR_ONDBLCLICK:
+ setHTMLEventListener(EventImpl::KHTML_ECMA_DBLCLICK_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "ondblclick", this));
+ break;
+ case ATTR_ONMOUSEDOWN:
+ setHTMLEventListener(EventImpl::MOUSEDOWN_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onmousedown", this));
+ break;
+ case ATTR_ONMOUSEMOVE:
+ setHTMLEventListener(EventImpl::MOUSEMOVE_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onmousemove", this));
+ break;
+ case ATTR_ONMOUSEOUT:
+ setHTMLEventListener(EventImpl::MOUSEOUT_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onmouseout", this));
+ break;
+ case ATTR_ONMOUSEOVER:
+ setHTMLEventListener(EventImpl::MOUSEOVER_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onmouseover", this));
+ break;
+ case ATTR_ONMOUSEUP:
+ setHTMLEventListener(EventImpl::MOUSEUP_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onmouseup", this));
+ break;
+ case ATTR_ONKEYDOWN:
+ setHTMLEventListener(EventImpl::KEYDOWN_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onkeydown", this));
+ break;
+ case ATTR_ONKEYPRESS:
+ setHTMLEventListener(EventImpl::KEYPRESS_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onkeypress", this));
+ break;
+ case ATTR_ONKEYUP:
+ setHTMLEventListener(EventImpl::KEYUP_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onkeyup", this));
+ break;
+ case ATTR_ONFOCUS:
+ setHTMLEventListener(EventImpl::FOCUS_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onfocus", this));
+ break;
+ case ATTR_ONBLUR:
+ setHTMLEventListener(EventImpl::BLUR_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onblur", this));
+ break;
+ case ATTR_ONSCROLL:
+ setHTMLEventListener(EventImpl::SCROLL_EVENT,
+ getDocument()->createHTMLEventListener(attr->value().string(), "onscroll", this));
+ break;
+// other misc attributes
+ default:
+#ifdef UNSUPPORTED_ATTR
+ kdDebug(6030) << "UATTR: <" << this->nodeName().string() << "> ["
+ << attr->name().string() << "]=[" << attr->value().string() << "]" << endl;
+#endif
+ break;
+ }
+}
+
+void HTMLElementImpl::recalcStyle( StyleChange ch )
+{
+ ElementImpl::recalcStyle( ch );
+
+ if (m_render /*&& changed*/)
+ m_render->updateFromElement();
+}
+
+void HTMLElementImpl::addCSSProperty(int id, const DOMString &value)
+{
+ if(!m_styleDecls) createDecl();
+ m_styleDecls->setProperty(id, value, false, true);
+ setChanged();
+}
+
+void HTMLElementImpl::addCSSProperty(int id, int value)
+{
+ if(!m_styleDecls) createDecl();
+ m_styleDecls->setProperty(id, value, false, true);
+ setChanged();
+}
+
+void HTMLElementImpl::addCSSLength(int id, const DOMString &value, bool numOnly, bool multiLength)
+{
+ if(!m_styleDecls) createDecl();
+
+ // strip attribute garbage to avoid CSS parsing errors
+ // ### create specialized hook that avoids parsing every
+ // value twice!
+ if ( value.implementation() ) {
+ // match \s*[+-]?\d*(\.\d*)?[%\*]?
+ unsigned i = 0, j = 0;
+ TQChar* s = value.implementation()->s;
+ unsigned l = value.implementation()->l;
+
+ while (i < l && s[i].isSpace())
+ ++i;
+ if (i < l && (s[i] == '+' || s[i] == '-'))
+ ++i;
+ while (i < l && s[i].isDigit())
+ ++i,++j;
+
+ // no digits!
+ if (j == 0) return;
+
+ int v = kClamp( TQConstString(s, i).string().toInt(), -8192, 8191 ) ;
+ const char* suffix = "px";
+ if (!numOnly || multiLength) {
+ // look if we find a % or *
+ while (i < l) {
+ if (multiLength && s[i] == '*') {
+ suffix = "";
+ break;
+ }
+ if (s[i] == '%') {
+ suffix = "%";
+ break;
+ }
+ ++i;
+ }
+ }
+ if (numOnly) suffix = "";
+
+ TQString ns = TQString::number(v) + suffix;
+ m_styleDecls->setLengthProperty( id, DOMString( ns ), false, true, multiLength );
+ setChanged();
+ return;
+ }
+
+ m_styleDecls->setLengthProperty(id, value, false, true, multiLength);
+ setChanged();
+}
+
+static inline bool isHexDigit( const TQChar &c ) {
+ return ( c >= '0' && c <= '9' ) ||
+ ( c >= 'a' && c <= 'f' ) ||
+ ( c >= 'A' && c <= 'F' );
+}
+
+static inline int toHex( const TQChar &c ) {
+ return ( (c >= '0' && c <= '9')
+ ? (c.tqunicode() - '0')
+ : ( ( c >= 'a' && c <= 'f' )
+ ? (c.tqunicode() - 'a' + 10)
+ : ( ( c >= 'A' && c <= 'F' )
+ ? (c.tqunicode() - 'A' + 10)
+ : -1 ) ) );
+}
+
+/* color parsing that tries to match as close as possible IE 6. */
+void HTMLElementImpl::addHTMLColor( int id, const DOMString &c )
+{
+ if(!m_styleDecls) createDecl();
+
+ // this is the only case no color gets applied in IE.
+ if ( !c.length() ) {
+ removeCSSProperty(id);
+ return;
+ }
+
+ if ( m_styleDecls->setProperty(id, c, false, true) )
+ return;
+
+ TQString color = c.string();
+ // not something that fits the specs.
+
+ // we're emulating IEs color parser here. It maps transparent to black, otherwise it tries to build a rgb value
+ // out of everyhting you put in. The algorithm is experimentally determined, but seems to work for all test cases I have.
+
+ // the length of the color value is rounded up to the next
+ // multiple of 3. each part of the rgb triple then gets one third
+ // of the length.
+ //
+ // Each triplet is parsed byte by byte, mapping
+ // each number to a hex value (0-9a-fA-F to their values
+ // everything else to 0).
+ //
+ // The highest non zero digit in all triplets is remembered, and
+ // used as a normalization point to normalize to values between 0
+ // and 255.
+
+ if ( color.lower() != "transparent" ) {
+ if ( color[0] == '#' )
+ color.remove( 0, 1 );
+ int basicLength = (color.length() + 2) / 3;
+ if ( basicLength > 1 ) {
+ // IE ignores colors with three digits or less
+// qDebug("trying to fix up color '%s'. basicLength=%d, length=%d",
+// color.latin1(), basicLength, color.length() );
+ int colors[3] = { 0, 0, 0 };
+ int component = 0;
+ int pos = 0;
+ int maxDigit = basicLength-1;
+ while ( component < 3 ) {
+ // search forward for digits in the string
+ int numDigits = 0;
+ while ( pos < (int)color.length() && numDigits < basicLength ) {
+ int hex = toHex( color[pos] );
+ colors[component] = (colors[component] << 4);
+ if ( hex > 0 ) {
+ colors[component] += hex;
+ maxDigit = kMin( maxDigit, numDigits );
+ }
+ numDigits++;
+ pos++;
+ }
+ while ( numDigits++ < basicLength )
+ colors[component] <<= 4;
+ component++;
+ }
+ maxDigit = basicLength - maxDigit;
+// qDebug("color is %x %x %x, maxDigit=%d", colors[0], colors[1], colors[2], maxDigit );
+
+ // normalize to 00-ff. The highest filled digit counts, minimum is 2 digits
+ maxDigit -= 2;
+ colors[0] >>= 4*maxDigit;
+ colors[1] >>= 4*maxDigit;
+ colors[2] >>= 4*maxDigit;
+// qDebug("normalized color is %x %x %x", colors[0], colors[1], colors[2] );
+ // assert( colors[0] < 0x100 && colors[1] < 0x100 && colors[2] < 0x100 );
+
+ color.sprintf("#%02x%02x%02x", colors[0], colors[1], colors[2] );
+// qDebug( "trying to add fixed color string '%s'", color.latin1() );
+ if ( m_styleDecls->setProperty(id, DOMString(color), false, true) )
+ return;
+ }
+ }
+ m_styleDecls->setProperty(id, CSS_VAL_BLACK, false, true);
+}
+
+void HTMLElementImpl::removeCSSProperty(int id)
+{
+ if(!m_styleDecls)
+ return;
+ m_styleDecls->setParent(getDocument()->elementSheet());
+ m_styleDecls->removeProperty(id, true /*nonCSSHint */);
+ setChanged();
+}
+
+DOMString HTMLElementImpl::innerHTML() const
+{
+ TQString result; //Use TQString to accumulate since DOMString is poor for appends
+ for (NodeImpl *child = firstChild(); child != NULL; child = child->nextSibling()) {
+ DOMString kid = child->toString();
+ result += TQConstString(kid.tqunicode(), kid.length()).string();
+ }
+ return result;
+}
+
+DOMString HTMLElementImpl::innerText() const
+{
+ TQString text = "";
+ if(!firstChild())
+ return text;
+
+ const NodeImpl *n = this;
+ // find the next text/image after the anchor, to get a position
+ while(n) {
+ if(n->firstChild())
+ n = n->firstChild();
+ else if(n->nextSibling())
+ n = n->nextSibling();
+ else {
+ NodeImpl *next = 0;
+ while(!next) {
+ n = n->parentNode();
+ if(!n || n == (NodeImpl *)this ) goto end;
+ next = n->nextSibling();
+ }
+ n = next;
+ }
+ if(n->isTextNode() ) {
+ DOMStringImpl* data = static_cast<const TextImpl *>(n)->string();
+ text += TQConstString(data->s, data->l).string();
+ }
+ }
+ end:
+ return text;
+}
+
+DocumentFragment HTMLElementImpl::createContextualFragment( const DOMString &html )
+{
+ // the following is in accordance with the definition as used by IE
+ if( endTag[id()] == FORBIDDEN )
+ return DocumentFragment();
+ // IE disallows innerHTML on inline elements.
+ // I don't see why we should have this restriction, as our
+ // dhtml engine can cope with it. Lars
+ //if ( isInline() ) return false;
+ switch( id() ) {
+ case ID_COL:
+ case ID_COLGROUP:
+ case ID_FRAMESET:
+ case ID_HEAD:
+ case ID_TABLE:
+ case ID_TBODY:
+ case ID_TFOOT:
+ case ID_THEAD:
+ case ID_TITLE:
+ return DocumentFragment();
+ default:
+ break;
+ }
+ if ( !getDocument()->isHTMLDocument() )
+ return DocumentFragment();
+
+ DocumentFragmentImpl* fragment = new DocumentFragmentImpl( docPtr() );
+ DocumentFragment f( fragment );
+ {
+ HTMLTokenizer tok( docPtr(), fragment );
+ tok.begin();
+ tok.write( html.string(), true );
+ tok.end();
+ }
+
+ // Exceptions are ignored because none ought to happen here.
+ int ignoredExceptionCode;
+
+ // we need to pop <html> and <body> elements and remove <head> to
+ // accomadate folks passing complete HTML documents to make the
+ // child of an element.
+ for ( NodeImpl* node = fragment->firstChild(); node; ) {
+ if (node->id() == ID_HTML || node->id() == ID_BODY) {
+ NodeImpl* firstChild = node->firstChild();
+ NodeImpl* child = firstChild;
+ while ( child ) {
+ NodeImpl *nextChild = child->nextSibling();
+ fragment->insertBefore(child, node, ignoredExceptionCode);
+ child = nextChild;
+ }
+ if ( !firstChild ) {
+ NodeImpl *nextNode = node->nextSibling();
+ fragment->removeChild(node, ignoredExceptionCode);
+ node = nextNode;
+ } else {
+ fragment->removeChild(node, ignoredExceptionCode);
+ node = firstChild;
+ }
+ } else if (node->id() == ID_HEAD) {
+ NodeImpl *nextNode = node->nextSibling();
+ fragment->removeChild(node, ignoredExceptionCode);
+ node = nextNode;
+ } else {
+ node = node->nextSibling();
+ }
+ }
+
+ return f;
+}
+
+void HTMLElementImpl::setInnerHTML( const DOMString &html, int &exceptioncode )
+{
+ // Works line innerText in Gecko
+ // ### test if needed for ID_SCRIPT as well.
+ if ( id() == ID_STYLE ) {
+ setInnerText(html, exceptioncode);
+ return;
+ }
+
+ DocumentFragment fragment = createContextualFragment( html );
+ if ( fragment.isNull() ) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // Make sure adding the new child is ok, before removing all children (#96187)
+ checkAddChild( fragment.handle(), exceptioncode );
+ if ( exceptioncode )
+ return;
+
+ removeChildren();
+ appendChild( fragment.handle(), exceptioncode );
+}
+
+void HTMLElementImpl::setInnerText( const DOMString &text, int& exceptioncode )
+{
+ // following the IE specs.
+ if( endTag[id()] == FORBIDDEN ) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+ // IE disallows innerHTML on inline elements. I don't see why we should have this restriction, as our
+ // dhtml engine can cope with it. Lars
+ //if ( isInline() ) return false;
+ switch( id() ) {
+ case ID_COL:
+ case ID_COLGROUP:
+ case ID_FRAMESET:
+ case ID_HEAD:
+ case ID_HTML:
+ case ID_TABLE:
+ case ID_TBODY:
+ case ID_TFOOT:
+ case ID_THEAD:
+ case ID_TR:
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ default:
+ break;
+ }
+
+ removeChildren();
+
+ TextImpl *t = new TextImpl( docPtr(), text.implementation() );
+ appendChild( t, exceptioncode );
+}
+
+void HTMLElementImpl::addHTMLAlignment( DOMString tqalignment )
+{
+ //qDebug("tqalignment is %s", tqalignment.string().latin1() );
+ // vertical tqalignment with respect to the current baseline of the text
+ // right or left means floating images
+ int propfloat = -1;
+ int propvalign = -1;
+ if ( strcasecmp( tqalignment, "absmiddle" ) == 0 ) {
+ propvalign = CSS_VAL_MIDDLE;
+ } else if ( strcasecmp( tqalignment, "absbottom" ) == 0 ) {
+ propvalign = CSS_VAL_BOTTOM;
+ } else if ( strcasecmp( tqalignment, "left" ) == 0 ) {
+ propfloat = CSS_VAL_LEFT;
+ propvalign = CSS_VAL_TOP;
+ } else if ( strcasecmp( tqalignment, "right" ) == 0 ) {
+ propfloat = CSS_VAL_RIGHT;
+ propvalign = CSS_VAL_TOP;
+ } else if ( strcasecmp( tqalignment, "top" ) == 0 ) {
+ propvalign = CSS_VAL_TOP;
+ } else if ( strcasecmp( tqalignment, "middle" ) == 0 ) {
+ propvalign = CSS_VAL__KHTML_BASELINE_MIDDLE;
+ } else if ( strcasecmp( tqalignment, "center" ) == 0 ) {
+ propvalign = CSS_VAL_MIDDLE;
+ } else if ( strcasecmp( tqalignment, "bottom" ) == 0 ) {
+ propvalign = CSS_VAL_BASELINE;
+ } else if ( strcasecmp ( tqalignment, "texttop") == 0 ) {
+ propvalign = CSS_VAL_TEXT_TOP;
+ }
+
+ if ( propfloat != -1 )
+ addCSSProperty( CSS_PROP_FLOAT, propfloat );
+ if ( propvalign != -1 )
+ addCSSProperty( CSS_PROP_VERTICAL_ALIGN, propvalign );
+}
+
+DOMString HTMLElementImpl::toString() const
+{
+ if (!hasChildNodes()) {
+ DOMString result = openTagStartToString();
+ result += ">";
+
+ if (endTag[id()] == REQUIRED) {
+ result += "</";
+ result += tagName();
+ result += ">";
+ }
+
+ return result;
+ }
+
+ return ElementImpl::toString();
+}
+
+// -------------------------------------------------------------------------
+HTMLGenericElementImpl::HTMLGenericElementImpl(DocumentImpl *doc, ushort i)
+ : HTMLElementImpl(doc)
+{
+ _id = i;
+}
+
+HTMLGenericElementImpl::~HTMLGenericElementImpl()
+{
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-04 07:16:12 +0000