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Diffstat (limited to 'bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/document/XMLModelParser.java')
-rw-r--r--bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/document/XMLModelParser.java2424
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diff --git a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/document/XMLModelParser.java b/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/document/XMLModelParser.java
deleted file mode 100644
index fe5d250152..0000000000
--- a/bundles/org.eclipse.wst.xml.core/src/org/eclipse/wst/xml/core/internal/document/XMLModelParser.java
+++ /dev/null
@@ -1,2424 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2001, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- * Jens Lukowski/Innoopract - initial renaming/restructuring
- *
- *******************************************************************************/
-package org.eclipse.wst.xml.core.internal.document;
-
-
-
-import java.util.Enumeration;
-import java.util.Iterator;
-import java.util.Vector;
-
-import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
-import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegionList;
-import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
-import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
-import org.eclipse.wst.xml.core.internal.commentelement.impl.CommentElementConfiguration;
-import org.eclipse.wst.xml.core.internal.commentelement.impl.CommentElementRegistry;
-import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
-import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
-import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
-import org.w3c.dom.Attr;
-import org.w3c.dom.DOMException;
-import org.w3c.dom.Element;
-import org.w3c.dom.NamedNodeMap;
-import org.w3c.dom.Node;
-import org.w3c.dom.Text;
-
-
-/**
- * XMLModelParser
- */
-public class XMLModelParser {
- private XMLModelContext context = null;
- private DOMModelImpl model = null;
-
- /**
- */
- protected XMLModelParser(DOMModelImpl model) {
- super();
-
- if (model != null) {
- this.model = model;
- }
- }
-
- /**
- */
- protected boolean canBeImplicitTag(Element element) {
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.canBeImplicitTag(element);
- }
- return false;
- }
-
- /**
- */
- protected boolean canBeImplicitTag(Element element, Node child) {
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.canBeImplicitTag(element, child);
- }
- return false;
- }
-
- /**
- */
- protected boolean canContain(Element element, Node child) {
- if (element == null || child == null)
- return false;
- ElementImpl impl = (ElementImpl) element;
- if (impl.isEndTag())
- return false; // invalid (floating) end tag
- if (!impl.isContainer())
- return false;
- if (child.getNodeType() != Node.TEXT_NODE) {
- if (impl.isJSPContainer() || impl.isCDATAContainer()) {
- // accepts only Text child
- return false;
- }
- }
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.canContain(element, child);
- }
- return true;
- }
-
- /**
- */
- private void changeAttrEqual(IStructuredDocumentRegion flatNode, ITextRegion region) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return;
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return;
- Node node = root.getNodeAt(offset);
- if (node == null)
- return;
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- if (node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
- // just notify the change instead of setting data
- ProcessingInstructionImpl pi = (ProcessingInstructionImpl) node;
- pi.notifyValueChanged();
- }
- return;
- }
- // actually, do nothing
- }
-
- /**
- * changeAttrName method
- *
- */
- private void changeAttrName(IStructuredDocumentRegion flatNode, ITextRegion region) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return;
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return;
- Node node = root.getNodeAt(offset);
- if (node == null)
- return;
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- if (node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
- // just notify the change instead of setting data
- ProcessingInstructionImpl pi = (ProcessingInstructionImpl) node;
- pi.notifyValueChanged();
- }
- return;
- }
-
- ElementImpl element = (ElementImpl) node;
- NamedNodeMap attributes = element.getAttributes();
- if (attributes == null)
- return;
- int length = attributes.getLength();
- for (int i = 0; i < length; i++) {
- AttrImpl attr = (AttrImpl) attributes.item(i);
- if (attr == null)
- continue;
- if (attr.getNameRegion() != region)
- continue;
-
- String name = flatNode.getText(region);
- attr.setName(name);
- break;
- }
- }
-
- /**
- * changeAttrValue method
- *
- */
- private void changeAttrValue(IStructuredDocumentRegion flatNode, ITextRegion region) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return;
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return;
- Node node = root.getNodeAt(offset);
- if (node == null)
- return;
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- if (node.getNodeType() == Node.PROCESSING_INSTRUCTION_NODE) {
- // just notify the change instead of setting data
- ProcessingInstructionImpl pi = (ProcessingInstructionImpl) node;
- pi.notifyValueChanged();
- }
- return;
- }
-
- ElementImpl element = (ElementImpl) node;
- NamedNodeMap attributes = element.getAttributes();
- if (attributes == null)
- return;
- int length = attributes.getLength();
- for (int i = 0; i < length; i++) {
- AttrImpl attr = (AttrImpl) attributes.item(i);
- if (attr == null)
- continue;
- if (attr.getValueRegion() != region)
- continue;
- // just notify the change instead of setting value
- attr.notifyValueChanged();
- break;
- }
- }
-
- /**
- * changeData method
- *
- */
- private void changeData(IStructuredDocumentRegion flatNode, ITextRegion region) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return;
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return;
- Node node = root.getNodeAt(offset);
- if (node == null)
- return;
- switch (node.getNodeType()) {
- case Node.TEXT_NODE : {
- TextImpl text = (TextImpl) node;
- if (text.isSharingStructuredDocumentRegion(flatNode)) {
- // has consecutive text sharing IStructuredDocumentRegion
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- this.context.setNextNode(node);
- cleanupText();
- break;
- }
- case Node.CDATA_SECTION_NODE :
- case Node.PROCESSING_INSTRUCTION_NODE :
- break;
- case Node.COMMENT_NODE :
- case Node.ELEMENT_NODE :
- // comment tag
- changeStructuredDocumentRegion(flatNode);
- return;
- default :
- return;
- }
-
- // just notify the change instead of setting data
- NodeImpl impl = (NodeImpl) node;
- impl.notifyValueChanged();
- }
-
- /**
- */
- private void changeEndTag(IStructuredDocumentRegion flatNode, ITextRegionList newRegions, ITextRegionList oldRegions) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return; // error
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return; // error
- Node node = root.getNodeAt(offset);
- if (node == null)
- return; // error
-
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- changeStructuredDocumentRegion(flatNode);
- return;
- }
-
- // check if change is only for close tag
- if (newRegions != null) {
- Iterator e = newRegions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_CLOSE)
- continue;
-
- // other region has changed
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- }
- if (oldRegions != null) {
- Iterator e = oldRegions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_CLOSE)
- continue;
-
- // other region has changed
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- }
-
- // change for close tag has no impact
- // do nothing
- }
-
- /**
- * changeRegion method
- *
- */
- void changeRegion(IStructuredDocumentRegion flatNode, ITextRegion region) {
- if (flatNode == null || region == null)
- return;
- if (this.model.getDocument() == null)
- return;
- this.context = new XMLModelContext(this.model.getDocument());
-
- // optimize typical cases
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_CONTENT || regionType == DOMRegionContext.XML_COMMENT_TEXT || regionType == DOMRegionContext.XML_CDATA_TEXT || regionType == DOMRegionContext.BLOCK_TEXT || isNestedContent(regionType)) {
- changeData(flatNode, region);
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
- changeAttrName(flatNode, region);
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
- changeAttrValue(flatNode, region);
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS) {
- changeAttrEqual(flatNode, region);
- }
- else if (regionType == DOMRegionContext.XML_TAG_NAME || isNestedTagName(regionType)) {
- changeTagName(flatNode, region);
- }
- else {
- changeStructuredDocumentRegion(flatNode);
- }
- }
-
-
-
- /**
- */
- private void changeStartTag(IStructuredDocumentRegion flatNode, ITextRegionList newRegions, ITextRegionList oldRegions) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return; // error
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return; // error
- Node node = root.getNodeAt(offset);
- if (node == null)
- return; // error
-
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- ElementImpl element = (ElementImpl) node;
-
- // check if changes are only for attributes and close tag
- boolean tagNameUnchanged = false;
- if (newRegions != null) {
- Iterator e = newRegions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME || regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS || regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE)
- continue;
- if (regionType == DOMRegionContext.XML_TAG_CLOSE) {
- // change from empty tag may have impact on structure
- if (!element.isEmptyTag())
- continue;
- }
- else if (regionType == DOMRegionContext.XML_TAG_NAME || isNestedTagName(regionType)) {
- String oldTagName = element.getTagName();
- String newTagName = flatNode.getText(region);
- if (oldTagName != null && newTagName != null && oldTagName.equals(newTagName)) {
- // the tag name is unchanged
- tagNameUnchanged = true;
- continue;
- }
- }
-
- // other region has changed
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- }
- if (oldRegions != null) {
- Iterator e = oldRegions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME || regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS || regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE)
- continue;
- if (regionType == DOMRegionContext.XML_TAG_CLOSE) {
- // change from empty tag may have impact on structure
- if (!element.isEmptyTag())
- continue;
- }
- else if (regionType == DOMRegionContext.XML_TAG_NAME || isNestedTagName(regionType)) {
- // if new tag name is unchanged, it's OK
- if (tagNameUnchanged)
- continue;
- }
-
- // other region has changed
- changeStructuredDocumentRegion(flatNode);
- return;
- }
- }
-
- // update attributes
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return; // error
- NamedNodeMap attributes = element.getAttributes();
- if (attributes == null)
- return; // error
-
- // first remove attributes
- int regionIndex = 0;
- int attrIndex = 0;
- AttrImpl attr = null;
- while (attrIndex < attributes.getLength()) {
- attr = (AttrImpl) attributes.item(attrIndex);
- if (attr == null) { // error
- attrIndex++;
- continue;
- }
- ITextRegion nameRegion = attr.getNameRegion();
- if (nameRegion == null) { // error
- element.removeAttributeNode(attr);
- continue;
- }
- boolean found = false;
- for (int i = regionIndex; i < regions.size(); i++) {
- ITextRegion region = regions.get(i);
- if (region == nameRegion) {
- regionIndex = i + 1; // next region
- found = true;
- break;
- }
- }
- if (found) {
- attrIndex++;
- }
- else {
- element.removeAttributeNode(attr);
- }
- }
-
- // insert or update attributes
- attrIndex = 0; // reset to first
- AttrImpl newAttr = null;
- ITextRegion oldValueRegion = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
- if (newAttr != null) {
- // insert deferred new attribute
- element.insertAttributeNode(newAttr, attrIndex++);
- newAttr = null;
- }
- else if (attr != null && oldValueRegion != null) {
- // notify existing attribute value removal
- attr.notifyValueChanged();
- }
-
- oldValueRegion = null;
- attr = (AttrImpl) attributes.item(attrIndex);
- if (attr != null && attr.getNameRegion() == region) {
- // existing attribute
- attrIndex++;
- // clear other regions
- oldValueRegion = attr.getValueRegion();
- attr.setEqualRegion(null);
- attr.setValueRegion(null);
- }
- else {
- String name = flatNode.getText(region);
- attr = (AttrImpl) this.model.getDocument().createAttribute(name);
- if (attr != null)
- attr.setNameRegion(region);
- // defer insertion of new attribute
- newAttr = attr;
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS) {
- if (attr != null) {
- attr.setEqualRegion(region);
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
- if (attr != null) {
- attr.setValueRegion(region);
- if (attr != newAttr && oldValueRegion != region) {
- // notify existing attribute value changed
- attr.notifyValueChanged();
- }
- oldValueRegion = null;
- attr = null;
- }
- }
- }
-
- if (newAttr != null) {
- // insert deferred new attribute
- element.appendAttributeNode(newAttr);
- }
- else if (attr != null && oldValueRegion != null) {
- // notify existing attribute value removal
- attr.notifyValueChanged();
- }
- }
-
- /**
- * changeStructuredDocumentRegion method
- *
- */
- private void changeStructuredDocumentRegion(IStructuredDocumentRegion flatNode) {
- if (flatNode == null)
- return;
- if (this.model.getDocument() == null)
- return;
-
- setupContext(flatNode);
-
- removeStructuredDocumentRegion(flatNode);
- // make sure the parent is set to deepest level
- // when end tag has been removed
- this.context.setLast();
- insertStructuredDocumentRegion(flatNode);
-
- cleanupText();
- cleanupEndTag();
- }
-
- /**
- */
- private void changeTagName(IStructuredDocumentRegion flatNode, ITextRegion region) {
- int offset = flatNode.getStart();
- if (offset < 0)
- return; // error
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return; // error
- Node node = root.getNodeAt(offset);
- if (node == null)
- return; // error
-
- if (node.getNodeType() != Node.ELEMENT_NODE) {
- changeStructuredDocumentRegion(flatNode);
- return;
- }
-
- ElementImpl element = (ElementImpl) node;
- String newTagName = flatNode.getText(region);
- if (newTagName == null || !element.matchTagName(newTagName)) {
- // the tag name is changed
- changeStructuredDocumentRegion(flatNode);
- return;
- }
-
- // the tag name is unchanged
- // this happens when typing spaces after the tag name
- // do nothing, but...
- // if it's not a change in the end tag of an element with the start
- // tag,
- // and case has been changed, set to element and notify
- if (!element.hasStartTag() || StructuredDocumentRegionUtil.getFirstRegionType(flatNode) != DOMRegionContext.XML_END_TAG_OPEN) {
- String tagName = element.getTagName();
- if (tagName == null || !tagName.equals(newTagName)) {
- element.setTagName(newTagName);
- element.notifyValueChanged();
- }
- }
- }
-
- /**
- * cleanupContext method
- */
- private void cleanupEndTag() {
- Node parent = this.context.getParentNode();
- Node next = this.context.getNextNode();
- while (parent != null) {
- while (next != null) {
- if (next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl element = (ElementImpl) next;
- if (element.isEndTag()) {
- // floating end tag
- String tagName = element.getTagName();
- String rootName = getFindRootName(tagName);
- ElementImpl start = (ElementImpl) this.context.findStartTag(tagName, rootName);
- if (start != null) {
- insertEndTag(start);
- // move the end tag from 'element' to 'start'
- start.addEndTag(element);
- removeNode(element);
- parent = this.context.getParentNode();
- next = this.context.getNextNode();
- continue;
- }
- }
- }
-
- Node first = next.getFirstChild();
- if (first != null) {
- parent = next;
- next = first;
- this.context.setNextNode(next);
- }
- else {
- next = next.getNextSibling();
- this.context.setNextNode(next);
- }
- }
-
- if (parent.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl element = (ElementImpl) parent;
- if (!element.hasEndTag() && element.hasStartTag() && element.getNextSibling() == null) {
- String tagName = element.getTagName();
- ElementImpl end = (ElementImpl) this.context.findEndTag(tagName);
- if (end != null) {
- // move the end tag from 'end' to 'element'
- element.addEndTag(end);
- removeEndTag(end);
- this.context.setParentNode(parent); // reset context
- continue;
- }
- }
- }
-
- next = parent.getNextSibling();
- parent = parent.getParentNode();
- if (next != null) {
- this.context.setNextNode(next);
- }
- else {
- this.context.setParentNode(parent);
- }
- }
- }
-
- /**
- */
- private void cleanupText() {
- Node parent = this.context.getParentNode();
- if (parent == null)
- return; // error
- Node next = this.context.getNextNode();
- Node prev = (next == null ? parent.getLastChild() : next.getPreviousSibling());
-
- TextImpl nextText = null;
- TextImpl prevText = null;
- if (next != null && next.getNodeType() == Node.TEXT_NODE) {
- nextText = (TextImpl) next;
- }
- if (prev != null && prev.getNodeType() == Node.TEXT_NODE) {
- prevText = (TextImpl) prev;
- }
- if (nextText == null && prevText == null)
- return;
- if (nextText != null && prevText != null) {
- // consecutive Text nodes created by setupContext(),
- // concat them
- IStructuredDocumentRegion flatNode = nextText.getStructuredDocumentRegion();
- if (flatNode != null)
- prevText.appendStructuredDocumentRegion(flatNode);
- Node newNext = next.getNextSibling();
- parent.removeChild(next);
- next = null;
- this.context.setNextNode(newNext);
- }
-
- TextImpl childText = (prevText != null ? prevText : nextText);
- if (childText.getNextSibling() == null && childText.getPreviousSibling() == null) {
- if (parent.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl parentElement = (ElementImpl) parent;
- if (!parentElement.hasStartTag() && !parentElement.hasEndTag()) {
- if (childText.isWhitespace() || childText.isInvalid()) {
- // implicit parent is not required
- Node newParent = parent.getParentNode();
- if (newParent != null) {
- Node newNext = parent.getNextSibling();
- newParent.removeChild(parent);
- parent.removeChild(childText);
- newParent.insertBefore(childText, newNext);
- if (childText == next) {
- this.context.setNextNode(childText);
- }
- else if (newNext != null) {
- this.context.setNextNode(newNext);
- }
- else {
- this.context.setParentNode(newParent);
- }
- // try again
- cleanupText();
- }
- }
- }
- }
- }
- }
-
- /**
- * This routine create an Element from comment data for comment style
- * elements, such as SSI and METADATA
- */
- protected Element createCommentElement(String data, boolean isJSPTag) {
- String trimmedData = data.trim();
- CommentElementConfiguration[] configs = CommentElementRegistry.getInstance().getConfigurations();
- for (int iConfig = 0; iConfig < configs.length; iConfig++) {
- CommentElementConfiguration config = configs[iConfig];
- if ((isJSPTag && !config.acceptJSPComment()) || (!isJSPTag && !config.acceptXMLComment())) {
- continue;
- }
- String[] prefixes = config.getPrefix();
- for (int iPrefix = 0; iPrefix < prefixes.length; iPrefix++) {
- if (trimmedData.startsWith(prefixes[iPrefix])) {
- return config.createElement(this.model.getDocument(), data, isJSPTag);
- }
- }
- }
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.createCommentElement(this.model.getDocument(), data, isJSPTag);
- }
- return null;
- }
-
- /**
- * This routine create an implicit Element for given parent and child,
- * such as HTML, BODY, HEAD, and TBODY for HTML document.
- */
- protected Element createImplicitElement(Node parent, Node child) {
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.createImplicitElement(this.model.getDocument(), parent, child);
- }
- return null;
- }
-
- /**
- */
- private void demoteNodes(Node root, Node newParent, Node oldParent, Node next) {
- if (newParent.getNodeType() != Node.ELEMENT_NODE)
- return;
- ElementImpl newElement = (ElementImpl) newParent;
-
- // find next
- while (next == null) {
- if (oldParent.getNodeType() != Node.ELEMENT_NODE)
- return;
- ElementImpl oldElement = (ElementImpl) oldParent;
- if (oldElement.hasEndTag())
- return;
- oldParent = oldElement.getParentNode();
- if (oldParent == null)
- return; // error
- next = oldElement.getNextSibling();
- }
-
- while (next != null) {
- boolean done = false;
- if (next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl nextElement = (ElementImpl) next;
- if (!nextElement.hasStartTag()) {
- Node nextChild = nextElement.getFirstChild();
- if (nextChild != null) {
- // demote children
- next = nextChild;
- oldParent = nextElement;
- continue;
- }
-
- if (nextElement.hasEndTag()) {
- if (nextElement.matchEndTag(newElement)) {
- // stop at the matched invalid end tag
- next = nextElement.getNextSibling();
- oldParent.removeChild(nextElement);
- newElement.addEndTag(nextElement);
-
- if (newElement == root)
- return;
- Node p = newElement.getParentNode();
- // check if reached to top
- if (p == null || p == oldParent || p.getNodeType() != Node.ELEMENT_NODE)
- return;
- newElement = (ElementImpl) p;
- done = true;
- }
- }
- else {
- // remove implicit element
- next = nextElement.getNextSibling();
- oldParent.removeChild(nextElement);
- done = true;
- }
- }
- }
-
- if (!done) {
- if (!canContain(newElement, next)) {
- if (newElement == root)
- return;
- Node p = newElement.getParentNode();
- // check if reached to top
- if (p == null || p == oldParent || p.getNodeType() != Node.ELEMENT_NODE)
- return;
- newElement = (ElementImpl) p;
- continue;
- }
-
- Node child = next;
- next = next.getNextSibling();
- oldParent.removeChild(child);
- insertNode(newElement, child, null);
- Node childParent = child.getParentNode();
- if (childParent != newElement) {
- newElement = (ElementImpl) childParent;
- }
- }
-
- // find next parent and sibling
- while (next == null) {
- if (oldParent.getNodeType() != Node.ELEMENT_NODE)
- return;
- ElementImpl oldElement = (ElementImpl) oldParent;
-
- // dug parent must not have children at this point
- if (!oldElement.hasChildNodes() && !oldElement.hasStartTag()) {
- oldParent = oldElement.getParentNode();
- if (oldParent == null)
- return; // error
- next = oldElement;
- break;
- }
-
- if (oldElement.hasEndTag())
- return;
- oldParent = oldElement.getParentNode();
- if (oldParent == null)
- return; // error
- next = oldElement.getNextSibling();
- }
- }
- }
-
- private ModelParserAdapter getParserAdapter() {
- return (ModelParserAdapter) this.model.getDocument().getAdapterFor(ModelParserAdapter.class);
- }
-
- /**
- */
- protected String getFindRootName(String tagName) {
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.getFindRootName(tagName);
- }
- return null;
- }
-
- /**
- */
- protected final IDOMModel getModel() {
- return this.model;
- }
-
- /**
- * insertCDATASection method
- *
- */
- private void insertCDATASection(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- CDATASectionImpl cdata = null;
- try {
- cdata = (CDATASectionImpl) this.model.getDocument().createCDATASection(null);
- }
- catch (DOMException ex) {
- }
- if (cdata == null) { // CDATA section might not be supported
- insertInvalidDecl(flatNode); // regard as invalid decl
- return;
- }
-
- cdata.setStructuredDocumentRegion(flatNode);
- insertNode(cdata);
- }
-
- /**
- * insertComment method
- *
- */
- private void insertComment(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String data = null;
- boolean isJSPTag = false;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (isNestedCommentOpen(regionType)) {
- isJSPTag = true;
- }
- else if (regionType == DOMRegionContext.XML_COMMENT_TEXT || isNestedCommentText(regionType)) {
- if (data == null) {
- data = flatNode.getText(region);
- }
- }
- }
-
- if (data != null) {
- ElementImpl element = (ElementImpl) createCommentElement(data, isJSPTag);
- if (element != null) {
- if (!isEndTag(element)) {
- element.setStartStructuredDocumentRegion(flatNode);
- insertStartTag(element);
- return;
- }
-
- // end tag
- element.setEndStructuredDocumentRegion(flatNode);
-
- String tagName = element.getTagName();
- String rootName = getFindRootName(tagName);
- ElementImpl start = (ElementImpl) this.context.findStartTag(tagName, rootName);
- if (start != null) { // start tag found
- insertEndTag(start);
- start.addEndTag(element);
- return;
- }
-
- // invalid end tag
- insertNode(element);
- return;
- }
- }
-
- CommentImpl comment = (CommentImpl) this.model.getDocument().createComment(null);
- if (comment == null)
- return;
- if (isJSPTag)
- comment.setJSPTag(true);
- comment.setStructuredDocumentRegion(flatNode);
- insertNode(comment);
- }
-
- /**
- * insertDecl method
- *
- */
- private void insertDecl(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- boolean isDocType = false;
- String name = null;
- String publicId = null;
- String systemId = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_DOCTYPE_DECLARATION) {
- isDocType = true;
- }
- else if (regionType == DOMRegionContext.XML_DOCTYPE_NAME) {
- if (name == null)
- name = flatNode.getText(region);
- }
- else if (regionType == DOMRegionContext.XML_DOCTYPE_EXTERNAL_ID_PUBREF) {
- if (publicId == null)
- publicId = StructuredDocumentRegionUtil.getAttrValue(flatNode, region);
- }
- else if (regionType == DOMRegionContext.XML_DOCTYPE_EXTERNAL_ID_SYSREF) {
- if (systemId == null)
- systemId = StructuredDocumentRegionUtil.getAttrValue(flatNode, region);
- }
- }
-
- // invalid declaration
- if (!isDocType) {
- insertInvalidDecl(flatNode);
- return;
- }
-
- DocumentTypeImpl docType = (DocumentTypeImpl) this.model.getDocument().createDoctype(name);
- if (docType == null)
- return;
- if (publicId != null)
- docType.setPublicId(publicId);
- if (systemId != null)
- docType.setSystemId(systemId);
- docType.setStructuredDocumentRegion(flatNode);
- insertNode(docType);
- }
-
- /**
- * insertEndTag method can be used by subclasses, but not overrided.
- *
- * @param element
- * org.w3c.dom.Element
- */
- protected void insertEndTag(Element element) {
- if (element == null)
- return;
-
- Node newParent = element.getParentNode();
- if (newParent == null)
- return; // error
-
- if (!((ElementImpl) element).isContainer()) {
- // just update context
- Node elementNext = element.getNextSibling();
- if (elementNext != null)
- this.context.setNextNode(elementNext);
- else
- this.context.setParentNode(newParent);
- return;
- }
-
- // promote children
- Node newNext = element.getNextSibling();
- Node oldParent = this.context.getParentNode();
- if (oldParent == null)
- return; // error
- Node oldNext = this.context.getNextNode();
- promoteNodes(element, newParent, newNext, oldParent, oldNext);
-
- // update context
- // re-check the next sibling
- newNext = element.getNextSibling();
- if (newNext != null)
- this.context.setNextNode(newNext);
- else
- this.context.setParentNode(newParent);
- }
-
- /**
- * insertEndTag method
- *
- */
- private void insertEndTag(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String tagName = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_NAME || isNestedTagName(regionType)) {
- if (tagName == null)
- tagName = flatNode.getText(region);
- }
- }
-
- if (tagName == null) { // invalid end tag
- insertText(flatNode); // regard as invalid text
- return;
- }
-
- String rootName = getFindRootName(tagName);
- ElementImpl start = (ElementImpl) this.context.findStartTag(tagName, rootName);
- if (start != null) { // start tag found
- insertEndTag(start);
- start.setEndStructuredDocumentRegion(flatNode);
- return;
- }
-
- // invalid end tag
- ElementImpl end = null;
- try {
- end = (ElementImpl) this.model.getDocument().createElement(tagName);
- }
- catch (DOMException ex) {
- }
- if (end == null) { // invalid end tag
- insertText(flatNode); // regard as invalid text
- return;
- }
- end.setEndStructuredDocumentRegion(flatNode);
- insertNode(end);
- }
-
- /**
- * insertEntityRef method
- *
- */
- private void insertEntityRef(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String name = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_ENTITY_REFERENCE || regionType == DOMRegionContext.XML_CHAR_REFERENCE) {
- if (name == null)
- name = StructuredDocumentRegionUtil.getEntityRefName(flatNode, region);
- }
- }
-
- if (name == null) { // invalid entity
- insertText(flatNode);
- return;
- }
-
- // ISSUE: avoid this cast
- String value = ((DocumentImpl)this.model.getDocument()).getCharValue(name);
- if (value != null) { // character entity
- TextImpl text = (TextImpl) this.context.findPreviousText();
- if (text != null) { // existing text found
- // do not append data
- text.appendStructuredDocumentRegion(flatNode);
- // notify the change
- text.notifyValueChanged();
- return;
- }
-
- // new text
- text = (TextImpl) this.model.getDocument().createTextNode(null);
- if (text == null)
- return;
- text.setStructuredDocumentRegion(flatNode);
- insertNode(text);
- return;
- }
-
- // general entity reference
- EntityReferenceImpl ref = null;
- try {
- ref = (EntityReferenceImpl) this.model.getDocument().createEntityReference(name);
- }
- catch (DOMException ex) {
- }
- if (ref == null) { // entity reference might not be supported
- insertText(flatNode); // regard as invalid text
- return;
- }
-
- ref.setStructuredDocumentRegion(flatNode);
- insertNode(ref);
- }
-
- /**
- * insertInvalidDecl method
- *
- */
- private void insertInvalidDecl(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- ElementImpl element = null;
- try {
- element = (ElementImpl) this.model.getDocument().createElement("!");//$NON-NLS-1$
- }
- catch (DOMException ex) {
- }
- if (element == null) { // invalid tag
- insertText(flatNode); // regard as invalid text
- return;
- }
- element.setEmptyTag(true);
- element.setStartStructuredDocumentRegion(flatNode);
- insertNode(element);
- }
-
- /**
- * insertJSPTag method
- *
- */
- private void insertNestedTag(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String tagName = null;
- AttrImpl attr = null;
- Vector attrNodes = null;
- boolean isCloseTag = false;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (isNestedTagOpen(regionType) || isNestedTagName(regionType)) {
- tagName = computeNestedTag(regionType, tagName, flatNode, region);
- }
- else if (isNestedTagClose(regionType)) {
- isCloseTag = true;
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
- String name = flatNode.getText(region);
- attr = (AttrImpl) this.model.getDocument().createAttribute(name);
- if (attr != null) {
- attr.setNameRegion(region);
- if (attrNodes == null)
- attrNodes = new Vector();
- attrNodes.addElement(attr);
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS) {
- if (attr != null) {
- attr.setEqualRegion(region);
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
- if (attr != null) {
- attr.setValueRegion(region);
- attr = null;
- }
- }
- }
-
- if (tagName == null) {
- if (isCloseTag) {
- // close JSP tag
- Node parent = this.context.getParentNode();
- if (parent != null && parent.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl start = (ElementImpl) parent;
- if (start.isJSPContainer()) {
- insertEndTag(start);
- start.setEndStructuredDocumentRegion(flatNode);
- return;
- }
- }
- }
- // invalid JSP tag
- insertText(flatNode); // regard as invalid text
- return;
- }
-
- ElementImpl element = null;
- try {
- element = (ElementImpl) this.model.getDocument().createElement(tagName);
- }
- catch (DOMException ex) {
- }
- if (element == null) { // invalid tag
- insertText(flatNode); // regard as invalid text
- return;
- }
- if (attrNodes != null) {
- Enumeration ae = attrNodes.elements();
- while (ae.hasMoreElements()) {
- Attr a = (Attr) ae.nextElement();
- if (a == null)
- continue;
- element.appendAttributeNode(a);
- }
- }
- element.setJSPTag(true);
- element.setStartStructuredDocumentRegion(flatNode);
- insertStartTag(element);
- }
-
- protected boolean isNestedTagClose(String regionType) {
- boolean result = false;
- return result;
- }
-
- protected boolean isNestedTagOpen(String regionType) {
- boolean result = false;
- return result;
- }
-
- protected String computeNestedTag(String regionType, String tagName, IStructuredDocumentRegion structuredDocumentRegion, ITextRegion region) {
- return tagName;
- }
-
- /**
- * insertNode method
- *
- * @param child
- * org.w3c.dom.Node
- */
- private void insertNode(Node node) {
- if (node == null)
- return;
- if (this.context == null)
- return;
-
- Node parent = this.context.getParentNode();
- if (parent == null)
- return;
- Node next = this.context.getNextNode();
- while (parent.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl element = (ElementImpl) parent;
- if (canContain(element, node)) {
- if (!element.hasStartTag() && next == element.getFirstChild()) {
- // first child of implicit tag
- // deletege to the parent
- parent = element.getParentNode();
- if (parent == null)
- return;
- next = element;
- this.context.setNextNode(next);
- continue;
- }
- break;
- }
- parent = element.getParentNode();
- if (parent == null)
- return;
-
- // promote siblings
- Node newNext = element.getNextSibling();
- Node child = next;
- while (child != null) {
- Node nextChild = child.getNextSibling();
- element.removeChild(child);
- parent.insertBefore(child, newNext);
- child = nextChild;
- }
-
- // leave the old end tag where it is
- if (element.hasEndTag()) {
- Element end = element.removeEndTag();
- if (end != null) {
- parent.insertBefore(end, newNext);
- if (next == null)
- next = end;
- }
- }
- if (!element.hasStartTag()) {
- // implicit element
- if (!element.hasChildNodes()) {
- parent.removeChild(element);
- }
- }
-
- // update context
- if (next == null)
- next = newNext;
- if (next != null)
- this.context.setNextNode(next);
- else
- this.context.setParentNode(parent);
- }
-
- insertNode(parent, node, next);
- next = node.getNextSibling();
- if (next != null)
- this.context.setNextNode(next);
- else
- this.context.setParentNode(node.getParentNode());
- }
-
- /**
- */
- private void insertNode(Node parent, Node node, Node next) {
- while (next != null && next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl nextElement = (ElementImpl) next;
- if (nextElement.hasStartTag())
- break;
- if (!canBeImplicitTag(nextElement, node))
- break;
- parent = nextElement;
- next = nextElement.getFirstChild();
- }
- Element implicitElement = createImplicitElement(parent, node);
- if (implicitElement != null)
- node = implicitElement;
- parent.insertBefore(node, next);
- }
-
- /**
- * insertPI method
- *
- */
- private void insertPI(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String target = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_PI_OPEN || regionType == DOMRegionContext.XML_PI_CLOSE)
- continue;
- if (target == null)
- target = flatNode.getText(region);
- }
-
- ProcessingInstructionImpl pi = (ProcessingInstructionImpl) this.model.getDocument().createProcessingInstruction(target, null);
- if (pi == null)
- return;
- pi.setStructuredDocumentRegion(flatNode);
- insertNode(pi);
- }
-
- /**
- * insertStartTag method can be used by subclasses, but not overridden.
- *
- * @param element
- * org.w3c.dom.Element
- */
- protected void insertStartTag(Element element) {
- if (element == null)
- return;
- if (this.context == null)
- return;
-
- insertNode(element);
-
- ElementImpl newElement = (ElementImpl) element;
- if (newElement.isEmptyTag() || !newElement.isContainer())
- return;
-
- // demote siblings
- Node parent = this.context.getParentNode();
- if (parent == null)
- return; // error
- Node next = this.context.getNextNode();
- demoteNodes(element, element, parent, next);
-
- // update context
- Node firstChild = element.getFirstChild();
- if (firstChild != null)
- this.context.setNextNode(firstChild);
- else
- this.context.setParentNode(element);
- }
-
- /**
- * insertStartTag method
- *
- */
- private void insertStartTag(IStructuredDocumentRegion flatNode) {
- ITextRegionList regions = flatNode.getRegions();
- if (regions == null)
- return;
-
- String tagName = null;
- boolean isEmptyTag = false;
- AttrImpl attr = null;
- Vector attrNodes = null;
- Iterator e = regions.iterator();
- while (e.hasNext()) {
- ITextRegion region = (ITextRegion) e.next();
- String regionType = region.getType();
- if (regionType == DOMRegionContext.XML_TAG_NAME || isNestedTagName(regionType)) {
- if (tagName == null)
- tagName = flatNode.getText(region);
- }
- else if (regionType == DOMRegionContext.XML_EMPTY_TAG_CLOSE) {
- isEmptyTag = true;
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME) {
- String name = flatNode.getText(region);
- attr = (AttrImpl) this.model.getDocument().createAttribute(name);
- if (attr != null) {
- attr.setNameRegion(region);
- if (attrNodes == null)
- attrNodes = new Vector();
- attrNodes.addElement(attr);
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_EQUALS) {
- if (attr != null) {
- attr.setEqualRegion(region);
- }
- }
- else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
- if (attr != null) {
- attr.setValueRegion(region);
- attr = null;
- }
- }
- }
-
- if (tagName == null) { // invalid start tag
- insertText(flatNode); // regard as invalid text
- return;
- }
-
- ElementImpl element = null;
- try {
- element = (ElementImpl) this.model.getDocument().createElement(tagName);
- }
- catch (DOMException ex) {
- // typically invalid name
- }
- if (element == null) { // invalid tag
- insertText(flatNode); // regard as invalid text
- return;
- }
- if (attrNodes != null) {
- Enumeration ae = attrNodes.elements();
- while (ae.hasMoreElements()) {
- Attr a = (Attr) ae.nextElement();
- if (a == null)
- continue;
- element.appendAttributeNode(a);
- }
- }
- if (isEmptyTag)
- element.setEmptyTag(true);
- element.setStartStructuredDocumentRegion(flatNode);
- insertStartTag(element);
- }
-
- /**
- * insertStructuredDocumentRegion method
- *
- */
- protected void insertStructuredDocumentRegion(IStructuredDocumentRegion flatNode) {
- String regionType = StructuredDocumentRegionUtil.getFirstRegionType(flatNode);
- if (regionType == DOMRegionContext.XML_TAG_OPEN) {
- insertStartTag(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_END_TAG_OPEN) {
- insertEndTag(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_COMMENT_OPEN || isNestedCommentOpen(regionType)) {
- insertComment(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_ENTITY_REFERENCE || regionType == DOMRegionContext.XML_CHAR_REFERENCE) {
- insertEntityRef(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_DECLARATION_OPEN) {
- insertDecl(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_PI_OPEN) {
- insertPI(flatNode);
- }
- else if (regionType == DOMRegionContext.XML_CDATA_OPEN) {
- insertCDATASection(flatNode);
- }
- else if (isNestedTag(regionType)) {
- insertNestedTag(flatNode);
- }
- else {
- insertText(flatNode);
- }
- }
-
- protected boolean isNestedTag(String regionType) {
- boolean result = false;
- return result;
- }
-
- protected boolean isNestedCommentText(String regionType) {
- boolean result = false;
- return result;
- }
-
-
- protected boolean isNestedCommentOpen(String regionType) {
- boolean result = false;
- return result;
- }
-
- protected boolean isNestedTagName(String regionType) {
- boolean result = false;
- return result;
- }
-
- protected boolean isNestedContent(String regionType) {
- boolean result = false;
- return result;
- }
-
- /**
- * insertText method Can be called from subclasses, not to be overrided or
- * re-implemented.
- *
- */
- protected void insertText(IStructuredDocumentRegion flatNode) {
- TextImpl text = (TextImpl) this.context.findPreviousText();
- if (text != null) { // existing text found
- text.appendStructuredDocumentRegion(flatNode);
- // notify the change
- text.notifyValueChanged();
- return;
- }
-
- // new text
- text = (TextImpl) this.model.getDocument().createTextNode(null);
- if (text == null)
- return;
- text.setStructuredDocumentRegion(flatNode);
- insertNode(text);
- }
-
- /**
- */
- protected boolean isEndTag(IDOMElement element) {
- ModelParserAdapter adapter = getParserAdapter();
- if (adapter != null) {
- return adapter.isEndTag(element);
- }
- return element.isEndTag();
- }
-
- /**
- */
- private void promoteNodes(Node root, Node newParent, Node newNext, Node oldParent, Node next) {
- ElementImpl newElement = null;
- if (newParent.getNodeType() == Node.ELEMENT_NODE) {
- newElement = (ElementImpl) newParent;
- }
-
- Node rootParent = root.getParentNode();
- while (oldParent != rootParent) {
- while (next != null) {
- boolean done = false;
- boolean endTag = false;
- if (next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl nextElement = (ElementImpl) next;
- if (!nextElement.hasStartTag()) {
- Node nextChild = nextElement.getFirstChild();
- if (nextChild != null) {
- // promote children
- next = nextChild;
- oldParent = nextElement;
- continue;
- }
-
- if (nextElement.hasEndTag()) {
- if (nextElement.matchEndTag(newElement)) {
- endTag = true;
- }
- }
- else {
- // remove implicit element
- next = nextElement.getNextSibling();
- oldParent.removeChild(nextElement);
- done = true;
- }
- }
- }
-
- if (!done) {
- if (!endTag && newElement != null && !canContain(newElement, next)) {
- newParent = newElement.getParentNode();
- if (newParent == null)
- return; // error
- Node elementNext = newElement.getNextSibling();
- // promote siblings
- promoteNodes(newElement, newParent, elementNext, newElement, newNext);
- newNext = newElement.getNextSibling();
- if (newParent.getNodeType() == Node.ELEMENT_NODE) {
- newElement = (ElementImpl) newParent;
- }
- else {
- newElement = null;
- }
- continue;
- }
-
- Node child = next;
- next = next.getNextSibling();
- oldParent.removeChild(child);
- insertNode(newParent, child, newNext);
- Node childParent = child.getParentNode();
- if (childParent != newParent) {
- newParent = childParent;
- newElement = (ElementImpl) newParent;
- newNext = child.getNextSibling();
- }
- }
- }
-
- if (oldParent.getNodeType() != Node.ELEMENT_NODE)
- return;
- ElementImpl oldElement = (ElementImpl) oldParent;
- oldParent = oldElement.getParentNode();
- if (oldParent == null)
- return; // error
- next = oldElement.getNextSibling();
-
- if (oldElement.hasEndTag()) {
- Element end = null;
- if (!oldElement.hasChildNodes() && !oldElement.hasStartTag()) {
- oldParent.removeChild(oldElement);
- end = oldElement;
- }
- else {
- end = oldElement.removeEndTag();
- }
- if (end != null) {
- insertNode(newParent, end, newNext);
- Node endParent = end.getParentNode();
- if (endParent != newParent) {
- newParent = endParent;
- newElement = (ElementImpl) newParent;
- newNext = end.getNextSibling();
- }
- }
- }
- }
- }
-
- /**
- * removeEndTag method
- *
- * @param element
- * org.w3c.dom.Element
- */
- private void removeEndTag(Element element) {
- if (element == null)
- return;
- if (this.context == null)
- return;
-
- Node parent = element.getParentNode();
- if (parent == null)
- return; // error
-
- if (!((ElementImpl) element).isContainer()) {
- // just update context
- Node elementNext = element.getNextSibling();
- if (elementNext != null)
- this.context.setNextNode(elementNext);
- else
- this.context.setParentNode(parent);
- return;
- }
-
- // demote siblings
- Node next = element.getNextSibling();
- ElementImpl newElement = (ElementImpl) element;
- // find new parent
- for (Node last = newElement.getLastChild(); last != null; last = last.getLastChild()) {
- if (last.getNodeType() != Node.ELEMENT_NODE)
- break;
- ElementImpl lastElement = (ElementImpl) last;
- if (lastElement.hasEndTag() || lastElement.isEmptyTag() || !lastElement.isContainer())
- break;
- newElement = lastElement;
- }
- Node lastChild = newElement.getLastChild();
- demoteNodes(element, newElement, parent, next);
-
- // update context
- Node newNext = null;
- if (lastChild != null)
- newNext = lastChild.getNextSibling();
- else
- newNext = newElement.getFirstChild();
- if (newNext != null)
- this.context.setNextNode(newNext);
- else
- this.context.setParentNode(newElement);
- }
-
- /**
- * Remove the specified node if it is no longer required implicit tag with
- * remaining child nodes promoted.
- */
- private Element removeImplicitElement(Node parent) {
- if (parent == null)
- return null;
- if (parent.getNodeType() != Node.ELEMENT_NODE)
- return null;
- ElementImpl element = (ElementImpl) parent;
- if (!element.isImplicitTag())
- return null;
- if (canBeImplicitTag(element))
- return null;
-
- Node elementParent = element.getParentNode();
- if (elementParent == null)
- return null; // error
- Node firstChild = element.getFirstChild();
- Node child = firstChild;
- Node elementNext = element.getNextSibling();
- while (child != null) {
- Node nextChild = child.getNextSibling();
- element.removeChild(child);
- elementParent.insertBefore(child, elementNext);
- child = nextChild;
- }
-
- // reset context
- if (this.context.getParentNode() == element) {
- Node oldNext = this.context.getNextNode();
- if (oldNext != null) {
- this.context.setNextNode(oldNext);
- }
- else {
- if (elementNext != null) {
- this.context.setNextNode(elementNext);
- }
- else {
- this.context.setParentNode(elementParent);
- }
- }
- }
- else if (this.context.getNextNode() == element) {
- if (firstChild != null) {
- this.context.setNextNode(firstChild);
- }
- else {
- if (elementNext != null) {
- this.context.setNextNode(elementNext);
- }
- else {
- this.context.setParentNode(elementParent);
- }
- }
- }
-
- removeNode(element);
- return element;
- }
-
- /**
- * removeNode method
- *
- * @param node
- * org.w3c.dom.Node
- */
- private void removeNode(Node node) {
- if (node == null)
- return;
- if (this.context == null)
- return;
-
- Node parent = node.getParentNode();
- if (parent == null)
- return;
- Node next = node.getNextSibling();
- Node prev = node.getPreviousSibling();
-
- // update context
- Node oldParent = this.context.getParentNode();
- if (node == oldParent) {
- if (next != null)
- this.context.setNextNode(next);
- else
- this.context.setParentNode(parent);
- }
- else {
- Node oldNext = this.context.getNextNode();
- if (node == oldNext) {
- this.context.setNextNode(next);
- }
- }
-
- parent.removeChild(node);
-
- if (removeImplicitElement(parent) != null)
- return;
-
- // demote sibling
- if (prev != null && prev.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl newElement = (ElementImpl) prev;
- if (!newElement.hasEndTag() && !newElement.isEmptyTag() && newElement.isContainer()) {
- // find new parent
- for (Node last = newElement.getLastChild(); last != null; last = last.getLastChild()) {
- if (last.getNodeType() != Node.ELEMENT_NODE)
- break;
- ElementImpl lastElement = (ElementImpl) last;
- if (lastElement.hasEndTag() || lastElement.isEmptyTag() || !lastElement.isContainer())
- break;
- newElement = lastElement;
- }
- Node lastChild = newElement.getLastChild();
- demoteNodes(prev, newElement, parent, next);
-
- // update context
- Node newNext = null;
- if (lastChild != null)
- newNext = lastChild.getNextSibling();
- else
- newNext = newElement.getFirstChild();
- if (newNext != null)
- this.context.setNextNode(newNext);
- else
- this.context.setParentNode(newElement);
- }
- }
- }
-
- /**
- * removeStartTag method
- *
- * @param element
- * org.w3c.dom.Element
- */
- private void removeStartTag(Element element) {
- if (element == null)
- return;
- if (this.context == null)
- return;
-
- // for implicit tag
- ElementImpl oldElement = (ElementImpl) element;
- if (canBeImplicitTag(oldElement)) {
- Node newParent = null;
- Node prev = oldElement.getPreviousSibling();
- if (prev != null && prev.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl prevElement = (ElementImpl) prev;
- if (!prevElement.hasEndTag()) {
- if (prevElement.hasStartTag() || prevElement.matchTagName(oldElement.getTagName())) {
- newParent = prevElement;
- }
- }
- }
- if (newParent == null) {
- // this element should stay as implicit tag
- // just remove all attributes
- oldElement.removeStartTag();
-
- // update context
- Node child = oldElement.getFirstChild();
- if (child != null) {
- this.context.setNextNode(child);
- }
- else if (oldElement.hasEndTag()) {
- this.context.setParentNode(oldElement);
- }
- return;
- }
- }
- // for comment tag
- if (oldElement.isCommentTag())
- oldElement.removeStartTag();
-
- // promote children
- Node elementParent = element.getParentNode();
- Node parent = elementParent;
- if (parent == null)
- return;
- Node first = element.getFirstChild();
- Node firstElement = null; // for the case first is removed as end
- // tag
- if (first != null) {
- // find new parent for children
- ElementImpl newElement = null;
- for (Node last = element.getPreviousSibling(); last != null; last = last.getLastChild()) {
- if (last.getNodeType() != Node.ELEMENT_NODE)
- break;
- ElementImpl lastElement = (ElementImpl) last;
- if (lastElement.hasEndTag() || lastElement.isEmptyTag() || !lastElement.isContainer())
- break;
- newElement = lastElement;
- }
- Node next = first;
- if (newElement != null) {
- while (next != null) {
- if (!newElement.hasEndTag() && newElement.hasStartTag() && next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl nextElement = (ElementImpl) next;
- if (!nextElement.hasStartTag() && nextElement.hasEndTag() && nextElement.matchEndTag(newElement)) {
- // stop at the matched invalid end tag
- Node elementChild = nextElement.getFirstChild();
- while (elementChild != null) {
- Node nextChild = elementChild.getNextSibling();
- nextElement.removeChild(elementChild);
- newElement.appendChild(elementChild);
- elementChild = nextChild;
- }
-
- next = nextElement.getNextSibling();
- element.removeChild(nextElement);
- newElement.addEndTag(nextElement);
- if (nextElement == first)
- firstElement = newElement;
-
- Node newParent = newElement.getParentNode();
- if (newParent == parent)
- break;
- if (newParent == null || newParent.getNodeType() != Node.ELEMENT_NODE)
- break; // error
- newElement = (ElementImpl) newParent;
- continue;
- }
- }
- if (!canContain(newElement, next)) {
- Node newParent = newElement.getParentNode();
- if (newParent == parent)
- break;
- if (newParent == null || newParent.getNodeType() != Node.ELEMENT_NODE)
- break; // error
- newElement = (ElementImpl) newParent;
- continue;
- }
- Node child = next;
- next = next.getNextSibling();
- element.removeChild(child);
- newElement.appendChild(child);
- }
- newElement = null;
- }
- if (parent.getNodeType() == Node.ELEMENT_NODE) {
- newElement = (ElementImpl) parent;
- }
- while (next != null) {
- if (newElement == null || canContain(newElement, next)) {
- Node child = next;
- next = next.getNextSibling();
- element.removeChild(child);
- parent.insertBefore(child, element);
- continue;
- }
-
- parent = newElement.getParentNode();
- if (parent == null)
- return;
-
- // promote siblings
- Node newNext = newElement.getNextSibling();
- Node child = element;
- while (child != null) {
- Node nextChild = child.getNextSibling();
- newElement.removeChild(child);
- parent.insertBefore(child, newNext);
- child = nextChild;
- }
-
- // leave the old end tag where it is
- if (newElement.hasEndTag()) {
- Element end = newElement.removeEndTag();
- if (end != null) {
- parent.insertBefore(end, newNext);
- }
- }
- if (!newElement.hasStartTag()) {
- // implicit element
- if (!newElement.hasChildNodes()) {
- parent.removeChild(newElement);
- }
- }
-
- if (parent.getNodeType() == Node.ELEMENT_NODE) {
- newElement = (ElementImpl) parent;
- }
- else {
- newElement = null;
- }
- }
- }
-
- Node newNext = element;
- Node startElement = null; // for the case element is removed as end
- // tag
- if (oldElement.hasEndTag()) {
- // find new parent for invalid end tag and siblings
- ElementImpl newElement = null;
- for (Node last = element.getPreviousSibling(); last != null; last = last.getLastChild()) {
- if (last.getNodeType() != Node.ELEMENT_NODE)
- break;
- ElementImpl lastElement = (ElementImpl) last;
- if (lastElement.hasEndTag() || lastElement.isEmptyTag() || !lastElement.isContainer())
- break;
- newElement = lastElement;
- }
- if (newElement != null) {
- // demote invalid end tag and sibling
- Node next = element;
- while (next != null) {
- if (!newElement.hasEndTag() && newElement.hasStartTag() && next.getNodeType() == Node.ELEMENT_NODE) {
- ElementImpl nextElement = (ElementImpl) next;
- if (!nextElement.hasStartTag() && nextElement.hasEndTag() && nextElement.matchEndTag(newElement)) {
- // stop at the matched invalid end tag
- Node elementChild = nextElement.getFirstChild();
- while (elementChild != null) {
- Node nextChild = elementChild.getNextSibling();
- nextElement.removeChild(elementChild);
- newElement.appendChild(elementChild);
- elementChild = nextChild;
- }
-
- next = nextElement.getNextSibling();
- parent.removeChild(nextElement);
- newElement.addEndTag(nextElement);
- if (nextElement == newNext)
- startElement = newElement;
-
- Node newParent = newElement.getParentNode();
- if (newParent == parent)
- break;
- if (newParent == null || newParent.getNodeType() != Node.ELEMENT_NODE)
- break; // error
- newElement = (ElementImpl) newParent;
- continue;
- }
- }
- if (!canContain(newElement, next)) {
- Node newParent = newElement.getParentNode();
- if (newParent == parent)
- break;
- if (newParent == null || newParent.getNodeType() != Node.ELEMENT_NODE)
- break; // error
- newElement = (ElementImpl) newParent;
- continue;
- }
- Node child = next;
- next = next.getNextSibling();
- parent.removeChild(child);
- if (child == oldElement) {
- if (!oldElement.isCommentTag()) {
- // clone (re-create) end tag
- Element end = oldElement.removeEndTag();
- if (end != null) {
- child = end;
- newNext = end;
- }
- }
- }
- newElement.appendChild(child);
- }
- }
- else {
- if (!oldElement.isCommentTag()) {
- // clone (re-create) end tag
- Element end = oldElement.removeEndTag();
- if (end != null) {
- parent.insertBefore(end, oldElement);
- parent.removeChild(oldElement);
- newNext = end;
- }
- }
- }
- }
- else {
- newNext = oldElement.getNextSibling();
- parent.removeChild(oldElement);
- }
-
- // update context
- Node oldParent = this.context.getParentNode();
- Node oldNext = this.context.getNextNode();
- if (element == oldParent) {
- if (oldNext != null) {
- this.context.setNextNode(oldNext); // reset for new parent
- }
- else if (newNext != null) {
- this.context.setNextNode(newNext);
- }
- else {
- this.context.setParentNode(parent);
- }
- }
- else if (element == oldNext) {
- if (firstElement != null) {
- this.context.setParentNode(firstElement);
- }
- else if (first != null) {
- this.context.setNextNode(first);
- }
- else if (startElement != null) {
- this.context.setParentNode(startElement);
- }
- else {
- this.context.setNextNode(newNext);
- }
- }
-
- removeImplicitElement(elementParent);
- }
-
- /**
- * removeStructuredDocumentRegion method
- *
- */
- private void removeStructuredDocumentRegion(IStructuredDocumentRegion oldStructuredDocumentRegion) {
- NodeImpl next = (NodeImpl) this.context.getNextNode();
- if (next != null) {
- short nodeType = next.getNodeType();
- if (nodeType != Node.ELEMENT_NODE) {
- IStructuredDocumentRegion flatNode = next.getStructuredDocumentRegion();
- if (flatNode == oldStructuredDocumentRegion) {
- removeNode(next);
- return;
- }
- if (nodeType != Node.TEXT_NODE) {
- throw new StructuredDocumentRegionManagementException();
- }
- if (flatNode == null) {
- // this is the case for empty Text
- // remove and continue
- removeNode(next);
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
- TextImpl text = (TextImpl) next;
- boolean isShared = text.isSharingStructuredDocumentRegion(oldStructuredDocumentRegion);
- if (isShared) {
- // make sure there is next Text node sharing this
- TextImpl nextText = (TextImpl) this.context.findNextText();
- if (nextText == null || !nextText.hasStructuredDocumentRegion(oldStructuredDocumentRegion)) {
- isShared = false;
- }
- }
- oldStructuredDocumentRegion = text.removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- if (oldStructuredDocumentRegion == null) {
- throw new StructuredDocumentRegionManagementException();
- }
- if (text.getStructuredDocumentRegion() == null) {
- // this is the case partial IStructuredDocumentRegion is
- // removed
- removeNode(text);
- }
- else {
- // notify the change
- text.notifyValueChanged();
- }
- // if shared, continue to remove IStructuredDocumentRegion
- // from them
- if (isShared)
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
-
- ElementImpl element = (ElementImpl) next;
- if (element.hasStartTag()) {
- IStructuredDocumentRegion flatNode = element.getStartStructuredDocumentRegion();
- if (flatNode != oldStructuredDocumentRegion) {
- throw new StructuredDocumentRegionManagementException();
- }
- if (element.hasEndTag() || element.hasChildNodes()) {
- element.setStartStructuredDocumentRegion(null);
- removeStartTag(element);
- }
- else {
- removeNode(element);
- }
- }
- else {
- Node child = element.getFirstChild();
- if (child != null) {
- this.context.setNextNode(child);
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
-
- if (!element.hasEndTag()) {
- // implicit element
- removeNode(element);
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
-
- IStructuredDocumentRegion flatNode = element.getEndStructuredDocumentRegion();
- if (flatNode != oldStructuredDocumentRegion) {
- throw new StructuredDocumentRegionManagementException();
- }
- removeNode(element);
- }
- return;
- }
-
- Node parent = this.context.getParentNode();
- if (parent == null || parent.getNodeType() != Node.ELEMENT_NODE) {
- throw new StructuredDocumentRegionManagementException();
- }
-
- ElementImpl end = (ElementImpl) parent;
- if (end.hasEndTag()) {
- IStructuredDocumentRegion flatNode = end.getEndStructuredDocumentRegion();
- if (flatNode != oldStructuredDocumentRegion) {
- throw new StructuredDocumentRegionManagementException();
- }
- if (!end.hasStartTag() && !end.hasChildNodes()) {
- this.context.setNextNode(end);
- removeNode(end);
- }
- else {
- end.setEndStructuredDocumentRegion(null);
- removeEndTag(end);
- }
- return;
- }
-
- next = (NodeImpl) end.getNextSibling();
- if (next != null) {
- this.context.setNextNode(next);
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
-
- parent = (NodeImpl) end.getParentNode();
- if (parent != null) {
- this.context.setParentNode(parent);
- removeStructuredDocumentRegion(oldStructuredDocumentRegion);
- return;
- }
- }
-
- /**
- * replaceRegions method
- *
- * @param newRegions
- * java.util.Vector
- * @param oldRegions
- * java.util.Vector
- */
- void replaceRegions(IStructuredDocumentRegion flatNode, ITextRegionList newRegions, ITextRegionList oldRegions) {
- if (flatNode == null)
- return;
- if (this.model.getDocument() == null)
- return;
- this.context = new XMLModelContext(this.model.getDocument());
-
- // optimize typical cases
- String regionType = StructuredDocumentRegionUtil.getFirstRegionType(flatNode);
- if (regionType == DOMRegionContext.XML_TAG_OPEN) {
- changeStartTag(flatNode, newRegions, oldRegions);
- }
- else if (regionType == DOMRegionContext.XML_END_TAG_OPEN) {
- changeEndTag(flatNode, newRegions, oldRegions);
- }
- else {
- changeStructuredDocumentRegion(flatNode);
- }
- }
-
- /**
- * replaceStructuredDocumentRegions method
- *
- */
- void replaceStructuredDocumentRegions(IStructuredDocumentRegionList newStructuredDocumentRegions, IStructuredDocumentRegionList oldStructuredDocumentRegions) {
- if (this.model.getDocument() == null)
- return;
- this.context = new XMLModelContext(this.model.getDocument());
-
- int newCount = (newStructuredDocumentRegions != null ? newStructuredDocumentRegions.getLength() : 0);
- int oldCount = (oldStructuredDocumentRegions != null ? oldStructuredDocumentRegions.getLength() : 0);
-
- if (oldCount > 0) {
- setupContext(oldStructuredDocumentRegions.item(0));
- // Node startParent = this.context.getParentNode();
-
- Enumeration e = oldStructuredDocumentRegions.elements();
- while (e.hasMoreElements()) {
- IStructuredDocumentRegion flatNode = (IStructuredDocumentRegion) e.nextElement();
- if (flatNode == null)
- continue;
- removeStructuredDocumentRegion(flatNode);
- }
- }
- else {
- if (newCount == 0)
- return;
- setupContext(newStructuredDocumentRegions.item(0));
- }
- // make sure the parent is set to deepest level
- // when end tag has been removed
- this.context.setLast();
-
- if (newCount > 0) {
- Enumeration e = newStructuredDocumentRegions.elements();
- while (e.hasMoreElements()) {
- IStructuredDocumentRegion flatNode = (IStructuredDocumentRegion) e.nextElement();
- if (flatNode == null)
- continue;
- insertStructuredDocumentRegion(flatNode);
- }
- }
-
- cleanupText();
- cleanupEndTag();
- }
-
- /**
- * setupContext method
- *
- */
- private void setupContext(IStructuredDocumentRegion startStructuredDocumentRegion) {
- int offset = startStructuredDocumentRegion.getStart();
- if (offset < 0)
- return;
- NodeImpl root = (NodeImpl) this.context.getRootNode();
- if (root == null)
- return;
-
- if (offset == 0) {
- // at the beggining of document
- Node child = root.getFirstChild();
- if (child != null)
- this.context.setNextNode(child);
- else
- this.context.setParentNode(root);
- return;
- }
-
- NodeImpl node = (NodeImpl) root.getNodeAt(offset);
- if (node == null) {
- // might be at the end of document
- this.context.setParentNode(root);
- this.context.setLast();
- return;
- }
-
- if (offset == node.getStartOffset()) {
- this.context.setNextNode(node);
- return;
- }
-
- if (node.getNodeType() == Node.TEXT_NODE) {
- TextImpl text = (TextImpl) node;
- Text nextText = text.splitText(startStructuredDocumentRegion);
- // notify the change
- text.notifyValueChanged();
- if (nextText == null)
- return; // error
- this.context.setNextNode(nextText);
- return;
- }
-
- for (Node child = node.getFirstChild(); child != null; child = child.getNextSibling()) {
- if (offset >= ((NodeImpl) child).getEndOffset())
- continue;
- this.context.setNextNode(child);
- return;
- }
- this.context.setParentNode(node);
- this.context.setLast();
- }
-
- protected XMLModelContext getContext() {
- return context;
- }
-
-}

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