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393 lines
14 KiB
393 lines
14 KiB
/***************************************************************************
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htmltranslator.cpp
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-------------------
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copyright : (C) 2003, 2004 - Nicolas Deschildre
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email : ndeschildre@tdewebdev.org
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <dom/dom_node.h>
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#include <dom/dom_string.h>
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#include <dom/dom_exception.h>
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#include <kdebug.h>
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#include <kstandarddirs.h>
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#include <tdeconfig.h>
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#include "quantacommon.h"
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#include "document.h"
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#include "tag.h"
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#include "node.h"
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#include "wkafkapart.h"
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#include "nodeproperties.h"
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#include "kafkacommon.h"
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#include "qextfileinfo.h"
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#include "viewmanager.h"
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#include "htmlenhancer.h"
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HTMLEnhancer::HTMLEnhancer(KafkaDocument *_wkafkapart)
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: NodeEnhancer()
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{
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m_showIconForScripts = true;
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m_wkafkapart = _wkafkapart;
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m_stddirs = new TDEStandardDirs();
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}
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HTMLEnhancer::~HTMLEnhancer()
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{
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delete m_stddirs;
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}
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bool HTMLEnhancer::enhanceNode(Node *node, DOM::Node parentDNode, DOM::Node nextDNode)
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{
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DOM::Node domNode, domNode2, attr, *ptDomNode;
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bool tbody, goUp;
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Node *n;
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TQString script, filename, text, oldName;
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KURL url, baseURL;
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int oldType;
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//FIRST update the src attr with the baseURL
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if(node->rootNode())
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{
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domNode = node->rootNode()->attributes().getNamedItem("src");
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if(!domNode.isNull())
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{
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baseURL.setPath(ViewManager::ref()->activeDocument()->url().directory());
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QuantaCommon::setUrl(url, domNode.nodeValue().string());
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url = QExtFileInfo::toAbsolute(url, baseURL);
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domNode.setNodeValue(url.url());
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#ifdef HEAVY_DEBUG
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kdDebug(25001)<< "HTMLTranslator::translateNode() - new src : " << url.url() << endl;
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#endif
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}
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}
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//THEN update the href attr of the LINK node with the baseURL
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if(node->tag->name.lower() == "link" && node->rootNode())
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{
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domNode = node->rootNode()->attributes().getNamedItem("href");
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if(!domNode.isNull())
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{
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baseURL.setPath(ViewManager::ref()->activeDocument()->url().directory());
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QuantaCommon::setUrl(url, domNode.nodeValue().string());
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url = QExtFileInfo::toAbsolute(url, baseURL);
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domNode.setNodeValue(url.url());
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#ifdef HEAVY_DEBUG
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kdDebug(25001)<< "HTMLTranslator::translateNode() - new href : " << url.url() << endl;
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#endif
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}
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}
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//THEN if it is the style element, add a DOM::Node::TEXT_NODE child gathering all the CSS
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//by default, the parser parse it as a script, which can't be translated in DOM::Nodes.
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if((node->tag->type == Tag::XmlTag && node->tag->name.lower() == "style") ||
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(node->tag->type == Tag::ScriptTag && node->tag->name.lower().contains("style") != 0))
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{
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//If the style Node doesn't exists, create it
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if(!node->rootNode())
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{
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oldType = node->tag->type;
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node->tag->type = Tag::XmlTag;
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oldName = node->tag->name;
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node->tag->name = "style";
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m_wkafkapart->buildKafkaNodeFromNode(node);
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node->tag->type = oldType;
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node->tag->name = oldName;
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}
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if(node->rootNode())
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{
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domNode = *node->rootNode();
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n = node->child;
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text = "";
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goUp = false;
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while(n)
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{
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text += n->tag->tagStr();
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n = kafkaCommon::getNextNode(n, goUp, node);
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}
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#ifdef HEAVY_DEBUG
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kdDebug(25001)<< "HTMLTranslator::translateNode() - CSS code : " << text << endl;
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#endif
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domNode2 = kafkaCommon::createTextDomNode(text, m_wkafkapart->getKafkaWidget()->document());
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if(!kafkaCommon::insertDomNode(domNode2, domNode))
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return false;
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m_wkafkapart->connectDomNodeToQuantaNode(domNode2, node);
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}
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}
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TQTag* qTag = QuantaCommon::tagFromDTD(m_wkafkapart->getCurrentDoc()->defaultDTD(),
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parentDNode.nodeName().string());
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//THEN replace, if asked, scripts by a little icon.
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if(node->tag->type == Tag::ScriptTag && m_showIconForScripts && qTag->isChild("IMG", false))
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{
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script = node->tag->name.left(node->tag->name.find("block", 0, false) - 1).lower();
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#ifdef LIGHT_DEBUG
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kdDebug(25001)<< "HTMLTranslator::translateNode() - BLOCK:" << script << ":" << endl;
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#endif
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filename = m_stddirs->findResource("data", "kafkapart/pics/" + script + ".png" );
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if(!filename.isEmpty())
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{
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//FIXME DTD!
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domNode = kafkaCommon::createDomNode("IMG", m_wkafkapart->defaultDTD(),
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m_wkafkapart->getKafkaWidget()->document());
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kafkaCommon::editDomNodeAttribute(domNode, "IMG", m_wkafkapart->defaultDTD(), "src",
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filename, m_wkafkapart->getKafkaWidget()->document());
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//Add a tooltip indicating the content of the script
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n = node->child;
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text = "";
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goUp = false;
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while(n && n != node)
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{
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text += n->tag->tagStr();
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n = kafkaCommon::getNextNode(n, goUp, node);
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}
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//if(text == "")
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// text = i18n("Empty")
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kafkaCommon::editDomNodeAttribute(domNode, "img", m_wkafkapart->defaultDTD(),
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"title", text, m_wkafkapart->getKafkaWidget()->document());
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if(!kafkaCommon::insertDomNode(domNode, parentDNode, nextDNode))
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return false;
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m_wkafkapart->connectDomNodeToQuantaNode(domNode, node);
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}
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}
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//THEN if it is a comment, add a little icon ;o)
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if(node->tag->type == Tag::Comment && m_showIconForScripts && qTag->isChild("IMG", false))
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{
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#ifdef LIGHT_DEBUG
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kdDebug(25001)<< "HTMLTranslator::translateNode() - Comment" << endl;
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#endif
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filename = m_stddirs->findResource("data", "kafkapart/pics/comment.png" );
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if(!filename.isEmpty())
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{
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//FIXME DTD!
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domNode = kafkaCommon::createDomNode("IMG", m_wkafkapart->defaultDTD(),
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m_wkafkapart->getKafkaWidget()->document());
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kafkaCommon::editDomNodeAttribute(domNode, "IMG", m_wkafkapart->defaultDTD(), "src",
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filename, m_wkafkapart->getKafkaWidget()->document());
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//Add a tooltip indicating the content of the script
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n = node->child;
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text = "";
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goUp = false;
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while(n && n != node)
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{
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text += n->tag->tagStr();
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n = kafkaCommon::getNextNode(n, goUp, node);
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}
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//if(text == "")
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// text = i18n("Empty")
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kafkaCommon::editDomNodeAttribute(domNode, "img", m_wkafkapart->defaultDTD(),
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"title", text, m_wkafkapart->getKafkaWidget()->document());
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if(!kafkaCommon::insertDomNode(domNode, parentDNode, nextDNode))
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return false;
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m_wkafkapart->connectDomNodeToQuantaNode(domNode, node);
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}
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}
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//THEN add a TBODY tag if necessary
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if(node->rootNode() && node->rootNode()->nodeName().string().lower() == "table")
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{
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tbody = false;
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n = node->child;
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while(n)
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{
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if(n->tag->name.lower() == "tbody")
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tbody = true;
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n = n->next;
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}
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if(!tbody)
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{
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domNode = kafkaCommon::createDomNode("TBODY", m_wkafkapart->defaultDTD(),
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m_wkafkapart->getKafkaWidget()->htmlDocument());
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if(!kafkaCommon::insertDomNode(domNode, *node->rootNode()))
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return false;
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m_wkafkapart->connectDomNodeToQuantaNode(domNode, node);
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ptDomNode = new DOM::Node(domNode);
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node->setLeafNode(ptDomNode);
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}
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}
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//THEN add a red dotted border to FORM tags.
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if(node->rootNode() && node->rootNode()->nodeName().string().lower() == "form")
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{
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kafkaCommon::editDomNodeAttribute(*node->rootNode(), node, "style", "border: 1px dotted red",
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m_wkafkapart->getKafkaWidget()->document());
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}
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// THEN add a tooltip indicating the content of the name attribute
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if(node->rootNode() && node->rootNode()->nodeName().string().lower() == "input")
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{
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domNode = *(node->rootNode());
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TQString text = node->tag->attributeValue("name");
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kafkaCommon::editDomNodeAttribute(domNode, "input", m_wkafkapart->defaultDTD(),
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"title", text, m_wkafkapart->getKafkaWidget()->document());
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}
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//THEN add a blue dotted border to DL, OL, UL tags
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if(node->rootNode())
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{
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text = node->rootNode()->nodeName().string().lower();
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if(text == "dl" || text == "ol" || text == "ul")
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{
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kafkaCommon::editDomNodeAttribute(*node->rootNode(), node, "style", "border: 1px dotted blue",
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m_wkafkapart->getKafkaWidget()->document());
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}
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}
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//THEN add a minimal border for borderless tables
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//TODO: make it configurable, and look if CSS hasn't defined a border first
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if(node->rootNode() && node->rootNode()->nodeName().string().lower() == "table")
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{
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attr = node->rootNode()->attributes().getNamedItem("border");
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if(attr.isNull() || (!attr.isNull() && attr.nodeValue().string() == "0"))
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{
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kafkaCommon::editDomNodeAttribute(*node->rootNode(), node, "border", "1",
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m_wkafkapart->getKafkaWidget()->document());
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}
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}
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//THEN add a blue dotted border to DIV tags
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if(node->rootNode())
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{
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text = node->rootNode()->nodeName().string().lower();
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if(text == "div")
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{
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kafkaCommon::editDomNodeAttribute(*node->rootNode(), node, "style", "border: 1px dotted green",
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m_wkafkapart->getKafkaWidget()->document());
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}
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}
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return true;
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}
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void HTMLEnhancer::postEnhanceNode(DOM::Node domNode)
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{
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DOM::Node textNode;
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kNodeAttrs *props;
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TQTag *qTag;
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bool isInline;
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if(domNode.isNull())
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return;
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//If domNode is a Block and there is no text around, and if domNode's parent can handle
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//text or a P tag, add an empty text DOM::Node
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// so that the user can access this area.
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qTag = QuantaCommon::tagFromDTD(m_wkafkapart->getCurrentDoc()->defaultDTD(),
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domNode.nodeName().string());
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isInline = kafkaCommon::isInline(domNode.nodeName().string());
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if(domNode.nodeType() == DOM::Node::ELEMENT_NODE &&
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(!isInline || (isInline && qTag && qTag->isSingle())))
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{
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qTag = QuantaCommon::tagFromDTD(m_wkafkapart->getNode(domNode.parentNode()));
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if((domNode.nextSibling().isNull() ||
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(!domNode.nextSibling().isNull() &&
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domNode.nextSibling().nodeType() == DOM::Node::ELEMENT_NODE &&
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!kafkaCommon::isInline(domNode.nextSibling().nodeName().string())))
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&& qTag && (qTag->isChild("#text", false) || qTag->isChild("p", false)) &&
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domNode.nodeName().string().lower() != "p")
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{
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textNode = kafkaCommon::createTextDomNode("",
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m_wkafkapart->getKafkaWidget()->document());
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props = m_wkafkapart->connectDomNodeToQuantaNode(textNode, 0L);
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props->setIsLinkedToNode(false);
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props->setSpecialBehavior(kNodeAttrs::emptyTextSurroundingBlockElementAtTheRight);
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kafkaCommon::insertDomNode(textNode, domNode.parentNode(),
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domNode.nextSibling());
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}
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if((domNode.previousSibling().isNull() || (!domNode.previousSibling().isNull() &&
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domNode.previousSibling().nodeType() == DOM::Node::ELEMENT_NODE &&
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!kafkaCommon::isInline(domNode.previousSibling().nodeName().string())))
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&& qTag && (qTag->isChild("#text", false) || qTag->isChild("p", false)) &&
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domNode.nodeName().string().lower() != "p")
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{
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textNode = kafkaCommon::createTextDomNode("",
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m_wkafkapart->getKafkaWidget()->document());
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props = m_wkafkapart->connectDomNodeToQuantaNode(textNode, 0L);
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props->setIsLinkedToNode(false);
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props->setSpecialBehavior(kNodeAttrs::emptyTextSurroundingBlockElementAtTheLeft);
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kafkaCommon::insertDomNode(textNode, domNode.parentNode(),
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domNode);
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}
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}
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//If domNode is an childless element, and if it can handle Text or a P tag,
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//add an empty text DOM::Node so that the
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//user can access this area.
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qTag = QuantaCommon::tagFromDTD(m_wkafkapart->getNode(domNode));
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if(domNode.nodeType() == DOM::Node::ELEMENT_NODE &&
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!domNode.hasChildNodes() && qTag && (qTag->isChild("#text", false) ||
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qTag->isChild("p", false)))
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{
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textNode = kafkaCommon::createTextDomNode("",
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m_wkafkapart->getKafkaWidget()->document());
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props = m_wkafkapart->connectDomNodeToQuantaNode(textNode, 0L);
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props->setIsLinkedToNode(false);
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props->setSpecialBehavior(kNodeAttrs::emptyTextAsChildOfAChildlessElement);
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kafkaCommon::insertDomNode(textNode, domNode);
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}
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}
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void HTMLEnhancer::postUnenhanceNode(DOM::Node domNode)
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{
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DOM::Node child, next;
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kNodeAttrs *attrs;
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if(domNode.isNull())
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return;
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//Try to remove the EmptyTextAsChildOfAChildlessElement Node first if present
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if(domNode.hasChildNodes())
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{
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child = domNode.firstChild();
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while(!child.isNull())
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{
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attrs = m_wkafkapart->getAttrs(child);
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next = child.nextSibling();
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if(attrs && attrs->specialBehavior() == kNodeAttrs::emptyTextAsChildOfAChildlessElement)
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kafkaCommon::removeDomNode(child);
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child = next;
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}
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}
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//Then try to remove the emptyTextSurroundingBlockElement* Nodes if present.
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if(!domNode.previousSibling().isNull())
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{
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attrs = m_wkafkapart->getAttrs(domNode.previousSibling());
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if(attrs && attrs->specialBehavior() == kNodeAttrs::emptyTextSurroundingBlockElementAtTheLeft)
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kafkaCommon::removeDomNode(domNode.previousSibling());
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}
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if(!domNode.nextSibling().isNull())
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{
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attrs = m_wkafkapart->getAttrs(domNode.nextSibling());
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if(attrs && attrs->specialBehavior() == kNodeAttrs::emptyTextSurroundingBlockElementAtTheRight)
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kafkaCommon::removeDomNode(domNode.nextSibling());
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}
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}
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void HTMLEnhancer::readConfig(TDEConfig *m_config)
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{
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m_config->setGroup("HTML Enhancer");
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m_showIconForScripts = m_config->readBoolEntry("Show Scripts Icons", true);
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}
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