📄 htmlparser.cpp
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case ID_TITLE: case ID_STYLE: if ( !head ) createHead(); if ( head ) { DOM::NodeImpl *newNode = head->addChild(n); if ( newNode ) { pushBlock(id, tagPriority[id]); setCurrent(newNode);#if SPEED_DEBUG < 2 if(!n->attached() && HTMLWidget) n->attach();#endif } else {#ifdef PARSER_DEBUG kdDebug( 6035 ) << "adding style before to body failed!!!!" << endl;#endif discard_until = ID_STYLE + ID_CLOSE_TAG; return false; } return true; } else if(inBody) { discard_until = ID_STYLE + ID_CLOSE_TAG; return false; } break; // SCRIPT and OBJECT are allowed in the body. case ID_BODY: if(inBody && doc()->body()) { // we have another <BODY> element.... apply attributes to existing one // make sure we don't overwrite already existing attributes // some sites use <body bgcolor=rightcolor>...<body bgcolor=wrongcolor> NamedAttrMapImpl *map = static_cast<ElementImpl*>(n)->attributes(true); NamedAttrMapImpl *bmap = doc()->body()->attributes(false); bool changed = false; for (unsigned long l = 0; map && l < map->length(); ++l) { AttributeImpl* it = map->attributeItem(l); changed = !bmap->getAttributeItem(it->id()); bmap->insertAttribute(it->clone(false)); } if ( changed ) doc()->recalcStyle( NodeImpl::Inherit ); } else if ( current->isDocumentNode() ) break; return false; break; // the following is a hack to move non rendered elements // outside of tables. // needed for broken constructs like <table><form ...><tr>.... case ID_INPUT: { ElementImpl *e = static_cast<ElementImpl *>(n); DOMString type = e->getAttribute(ATTR_TYPE); if ( strcasecmp( type, "hidden" ) == 0 && form) { form->addChild(n);#if SPEED_DEBUG < 2 if(!n->attached() && HTMLWidget) n->attach();#endif return true; } break; } case ID_TEXT: // ignore text inside the following elements. switch(current->id()) { case ID_SELECT: return false; default: ; // fall through!! }; break; case ID_DD: case ID_DT: e = new HTMLDListElementImpl(document); if ( insertNode(e) ) { insertNode(n); return true; } break; case ID_AREA: { if(map) { map->addChild(n);#if SPEED_DEBUG < 2 if(!n->attached() && HTMLWidget) n->attach();#endif handled = true; } else return false; return true; } default: break; } // switch on the currently active element switch(current->id()) { case ID_HTML: switch(id) { case ID_SCRIPT: case ID_STYLE: case ID_META: case ID_LINK: case ID_OBJECT: case ID_EMBED: case ID_TITLE: case ID_ISINDEX: case ID_BASE: if(!head) { head = new HTMLHeadElementImpl(document); e = head; insertNode(e); handled = true; } break; case ID_TEXT: { TextImpl *t = static_cast<TextImpl *>(n); if (t->containsOnlyWhitespace()) return false; /* Fall through to default */ } default: if ( haveFrameSet ) break; e = new HTMLBodyElementImpl(document); startBody(); insertNode(e); handled = true; break; } break; case ID_HEAD: // we can get here only if the element is not allowed in head. if (id == ID_HTML) return false; else { // This means the body starts here... if ( haveFrameSet ) break; popBlock(ID_HEAD); e = new HTMLBodyElementImpl(document); startBody(); insertNode(e); handled = true; } break; case ID_BODY: break; case ID_CAPTION: // Illegal content in a caption. Close the caption and try again. popBlock(ID_CAPTION); switch( id ) { case ID_THEAD: case ID_TFOOT: case ID_TBODY: case ID_TR: case ID_TD: case ID_TH: return insertNode(n, flat); } break; case ID_TABLE: case ID_THEAD: case ID_TFOOT: case ID_TBODY: case ID_TR: switch(id) { case ID_TABLE: popBlock(ID_TABLE); // end the table handled = true; // ...and start a new one break; case ID_TEXT: { TextImpl *t = static_cast<TextImpl *>(n); if (t->containsOnlyWhitespace()) return false; DOMStringImpl *i = t->string(); unsigned int pos = 0; while(pos < i->l && ( *(i->s+pos) == QChar(' ') || *(i->s+pos) == QChar(0xa0))) pos++; if(pos == i->l) break; } default: { NodeImpl *node = current; NodeImpl *parent = node->parentNode(); NodeImpl *parentparent = parent->parentNode(); if (n->isTextNode() || ( node->id() == ID_TR && ( parent->id() == ID_THEAD || parent->id() == ID_TBODY || parent->id() == ID_TFOOT ) && parentparent->id() == ID_TABLE ) || ( !checkChild( ID_TR, id ) && ( node->id() == ID_THEAD || node->id() == ID_TBODY || node->id() == ID_TFOOT ) && parent->id() == ID_TABLE )) { node = (node->id() == ID_TABLE) ? node : ((node->id() == ID_TR) ? parentparent : parent); NodeImpl *parent = node->parentNode(); int exceptioncode = 0; parent->insertBefore( n, node, exceptioncode ); if ( exceptioncode ) {#ifdef PARSER_DEBUG kdDebug( 6035 ) << "adding content before table failed!" << endl;#endif break; } if (n->isElementNode() && tagPriority[id] != 0 && !flat && endTag[id] != DOM::FORBIDDEN) { pushBlock(id, tagPriority[id]); setCurrent(n); inStrayTableContent++; blockStack->strayTableContent = true; } return true; } if ( current->id() == ID_TR ) e = new HTMLTableCellElementImpl(document, ID_TD); else if ( current->id() == ID_TABLE ) e = new HTMLTableSectionElementImpl( document, ID_TBODY, true /* implicit */ ); else e = new HTMLTableRowElementImpl( document ); insertNode(e); handled = true; break; } // end default } // end switch break; case ID_OBJECT: discard_until = id + ID_CLOSE_TAG; return false; case ID_UL: case ID_OL: case ID_DIR: case ID_MENU: e = new HTMLDivElementImpl(document); insertNode(e); handled = true; break; case ID_DL: popBlock(ID_DL); handled = true; break; case ID_DT: popBlock(ID_DT); handled = true; break; case ID_SELECT: if( n->isInline() ) return false; break; case ID_P: case ID_H1: case ID_H2: case ID_H3: case ID_H4: case ID_H5: case ID_H6: if(!n->isInline()) { popBlock(current->id()); handled = true; } break; case ID_OPTION: case ID_OPTGROUP: if (id == ID_OPTGROUP) { popBlock(current->id()); handled = true; } else if(id == ID_SELECT) { // IE treats a nested select as </select>. Let's do the same popBlock( ID_SELECT ); break; } break; // head elements in the body should be ignored. case ID_ADDRESS: popBlock(ID_ADDRESS); handled = true; break; case ID_COLGROUP: if (id != ID_TEXT) { popBlock(ID_COLGROUP); handled = true; } break; case ID_FONT: popBlock(ID_FONT); handled = true; break; default: if(current->isDocumentNode()) { if(current->firstChild() == 0) { e = new HTMLHtmlElementImpl(document); insertNode(e); handled = true; } } else if(current->isInline()) { popInlineBlocks(); handled = true; } } // if we couldn't handle the error, just rethrow the exception... if(!handled) { //kdDebug( 6035 ) << "Exception handler failed in HTMLPArser::insertNode()" << endl; return false; } return insertNode(n); }}NodeImpl *KHTMLParser::getElement(Token* t){ NodeImpl *n = 0; switch(t->id) { case ID_HTML: n = new HTMLHtmlElementImpl(document); break; case ID_HEAD: if(!head && current->id() == ID_HTML) { head = new HTMLHeadElementImpl(document); n = head; } break; case ID_BODY: // body no longer allowed if we have a frameset if(haveFrameSet) break; popBlock(ID_HEAD); n = new HTMLBodyElementImpl(document); startBody(); break;// head elements case ID_BASE: n = new HTMLBaseElementImpl(document); break; case ID_LINK: n = new HTMLLinkElementImpl(document); break; case ID_META: n = new HTMLMetaElementImpl(document); break; case ID_STYLE: n = new HTMLStyleElementImpl(document); break; case ID_TITLE: n = new HTMLTitleElementImpl(document); break;// frames case ID_FRAME: n = new HTMLFrameElementImpl(document); break; case ID_FRAMESET: popBlock(ID_HEAD); if ( inBody && !haveFrameSet && !haveContent) { popBlock( ID_BODY ); // ### actually for IE document.body returns the now hidden "body" element // we can't implement that behaviour now because it could cause too many // regressions and the headaches are not worth the work as long as there is // no site actually relying on that detail (Dirk) if (static_cast<HTMLDocumentImpl*>(document->document())->body()) static_cast<HTMLDocumentImpl*>(document->document())->body() ->setAttribute(ATTR_STYLE, "display:none"); inBody = false; } if ( (haveContent || haveFrameSet) && current->id() == ID_HTML) break; n = new HTMLFrameSetElementImpl(document); haveFrameSet = true; startBody(); break; // a bit a special case, since the frame is inlined... case ID_IFRAME: n = new HTMLIFrameElementImpl(document); discard_until = ID_IFRAME+ID_CLOSE_TAG; break;// form elements case ID_FORM: if (!form) { // Only create a new form if we're not already inside one. // This is consistent with other browsers' behavior. form = new HTMLFormElementImpl(document); n = form; }⌨️ 快捷键说明
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