/*******************************************************************************
* Copyright (c) 2004, 2005 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
*******************************************************************************/
package org.eclipse.wst.css.core.internal.document;
import java.util.LinkedList;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSPrimitiveValue;
import org.eclipse.wst.css.core.internal.util.AbstractCssTraverser;
import org.eclipse.wst.css.core.internal.util.CSSUtil;
import org.w3c.dom.DOMException;
import org.w3c.dom.css.CSSPrimitiveValue;
/**
*
*/
class CSSModelUpdateContext {
class CSSNodeUpdateTraverser extends AbstractCssTraverser {
public CSSNodeUpdateTraverser() {
super();
setTraverseImported(false);
setTraverseImportFirst(false);
}
public LinkedList getNodeList() {
return fTravNodeList;
}
protected void begin(ICSSNode node) {
fTravNodeList = new LinkedList();
}
protected short preNode(ICSSNode node) {
if (node instanceof CSSStyleDeclarationImpl || node instanceof CSSAttrImpl || node instanceof MediaListImpl) {
// skip
}
else {
fTravNodeList.add(node);
}
if (node instanceof CSSPrimitiveContainer) {
return TRAV_PRUNE;
}
else {
return TRAV_CONT;
}
}
LinkedList fTravNodeList = null;
}
ICSSNode fLastNode = null;
ICSSNode fDeletionTargetParent = null;
ICSSNode fDeletionTarget = null;
LinkedList fNodeList = null;
private short fUpdateMode = UPDATE_IDLE;
static final short UPDATE_IDLE = 0;
static final short UPDATE_INSERT_FNCONTAINER = 1;
static final short UPDATE_INSERT_RCONTAINER = 2;
static final short UPDATE_REMOVE_FNCONTAINER = 3;
static final short UPDATE_REMOVE_RCONTAINER = 4;
static final short UPDATE_CHANGE_RCONTAINER = 5;
/**
* CSSNodeUpdateQueue constructor comment.
*/
CSSModelUpdateContext() {
super();
}
/**
*
*/
void cleanupContext() {
fNodeList = null;
fDeletionTarget = null;
fDeletionTargetParent = null;
fUpdateMode = UPDATE_IDLE;
}
/**
*
*/
CounterImpl getCounter() {
ICSSNode node = getNode();
if (node instanceof CounterImpl) {
return (CounterImpl) node;
}
else {
CSSUtil.debugOut("CounterImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSCharsetRuleImpl getCSSCharsetRule() {
ICSSNode node = getNode();
if (node instanceof CSSCharsetRuleImpl) {
return (CSSCharsetRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSCharsetRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSFontFaceRuleImpl getCSSFontFaceRule() {
ICSSNode node = getNode();
if (node instanceof CSSFontFaceRuleImpl) {
return (CSSFontFaceRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSFontFaceRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSImportRuleImpl getCSSImportRule() {
ICSSNode node = getNode();
if (node instanceof CSSImportRuleImpl) {
return (CSSImportRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSImportRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSMediaRuleImpl getCSSMediaRule() {
ICSSNode node = getNode();
if (node instanceof CSSMediaRuleImpl) {
return (CSSMediaRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSMediaRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSPageRuleImpl getCSSPageRule() {
ICSSNode node = getNode();
if (node instanceof CSSPageRuleImpl) {
return (CSSPageRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSPageRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSPrimitiveValueImpl getCSSPrimitiveValue(short type) {
ICSSNode node = getNode();
if (node instanceof CSSPrimitiveValueImpl) {
short nodeType = ((CSSPrimitiveValueImpl) node).getPrimitiveType();
if (nodeType == type || ((nodeType == CSSPrimitiveValue.CSS_NUMBER || nodeType == ICSSPrimitiveValue.CSS_INTEGER) && (type == CSSPrimitiveValue.CSS_NUMBER || type == ICSSPrimitiveValue.CSS_INTEGER))) {
return (CSSPrimitiveValueImpl) node;
}
}
if (node instanceof CSSPrimitiveValueImpl) {
CSSPrimitiveValueImpl value = (CSSPrimitiveValueImpl) node;
CSSUtil.debugOut("CSSPrimitiveValueImpl [" + type + //$NON-NLS-1$
"] is expected, but type is [" + //$NON-NLS-1$
value.getPrimitiveType() + "]: \"" + value.generateSource() + "\"");//$NON-NLS-2$//$NON-NLS-1$
}
else {
CSSUtil.debugOut("CSSPrimitiveValueImpl(" + type + //$NON-NLS-1$
") is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
}
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
/**
*
*/
CSSPrimitiveValueImpl getCSSPrimitiveValueAny() {
ICSSNode node = getNode();
if (node instanceof CSSPrimitiveValueImpl) {
return (CSSPrimitiveValueImpl) node;
}
else {
CSSUtil.debugOut("CSSPrimitiveValueImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSStyleDeclItemImpl getCSSStyleDeclItem(String propertyName) {
ICSSNode node = getNode();
if (node instanceof CSSStyleDeclItemImpl && ((CSSStyleDeclItemImpl) node).getPropertyName().equalsIgnoreCase(propertyName)) {
return (CSSStyleDeclItemImpl) node;
}
else {
CSSUtil.debugOut("CSSStyleDeclItemImpl(" + propertyName + //$NON-NLS-1$
") is expected, but " + CSSUtil.getClassString(node));//$NON-NLS-1$
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
CSSStyleRuleImpl getCSSStyleRule() {
ICSSNode node = getNode();
if (node instanceof CSSStyleRuleImpl) {
return (CSSStyleRuleImpl) node;
}
else {
CSSUtil.debugOut("CSSStyleRuleImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
* @return org.eclipse.wst.css.core.model.interfaces.ICSSNode
*/
ICSSNode getDeletionTarget() {
return fDeletionTarget;
}
/**
* @return org.eclipse.wst.css.core.model.interfaces.ICSSNode
*/
ICSSNode getDeletionTargetParent() {
return fDeletionTargetParent;
}
/**
*
*/
private ICSSNode getNode() {
ICSSNode node = null;
if (fNodeList != null && 0 < fNodeList.size()) {
node = (ICSSNode) fNodeList.removeFirst();
}
fLastNode = node;
return node;
}
/**
*
*/
int getNodeCount() {
if (fNodeList != null) {
return fNodeList.size();
}
else {
return -1;
}
}
/**
*
*/
// ICSSNode getParentNode() {
// return fParentNode;
// }
/**
*
*/
RectImpl getRect() {
ICSSNode node = getNode();
if (node instanceof RectImpl) {
return (RectImpl) node;
}
else {
CSSUtil.debugOut("RectImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
*
*/
RGBColorImpl getRGBColor() {
ICSSNode node = getNode();
if (node instanceof RGBColorImpl) {
return (RGBColorImpl) node;
}
else {
CSSUtil.debugOut("RGBColorImpl is expected, but " + //$NON-NLS-1$
CSSUtil.getClassString(node));
ungetNode();
throw new DOMException(DOMException.INVALID_MODIFICATION_ERR, "");//$NON-NLS-1$
}
}
/**
* @return short
*/
short getUpdateMode() {
return fUpdateMode;
}
/**
*
*/
boolean isActive() {
return (fNodeList != null);
}
/**
*
*/
void setupContext(short updateMode, ICSSNode parentNode, ICSSNode targetNode) {
fUpdateMode = updateMode;
ICSSNode traverseRoot;
if (updateMode == UPDATE_REMOVE_RCONTAINER || updateMode == UPDATE_INSERT_RCONTAINER || updateMode == UPDATE_CHANGE_RCONTAINER) {
traverseRoot = parentNode;
while (traverseRoot instanceof CSSRegionContainer) {
traverseRoot = traverseRoot.getParentNode();
}
}
else {
traverseRoot = targetNode;
}
if (updateMode == UPDATE_REMOVE_RCONTAINER || updateMode == UPDATE_INSERT_RCONTAINER || // region
// insert
// =>
// replace
// flat
// node
updateMode == UPDATE_CHANGE_RCONTAINER || updateMode == UPDATE_REMOVE_FNCONTAINER) {
fDeletionTarget = traverseRoot;
if (fDeletionTarget == targetNode) {
fDeletionTargetParent = parentNode;
}
else {
fDeletionTargetParent = fDeletionTarget.getParentNode();
}
}
else {
fDeletionTarget = null;
fDeletionTargetParent = null;
}
if (updateMode == UPDATE_INSERT_RCONTAINER || updateMode == UPDATE_INSERT_FNCONTAINER || updateMode == UPDATE_REMOVE_RCONTAINER || // region
// remove
// =>
// re-insert
// flat
// node
updateMode == UPDATE_CHANGE_RCONTAINER) {
CSSNodeUpdateTraverser traverser = new CSSNodeUpdateTraverser();
traverser.apply(traverseRoot);
fNodeList = traverser.getNodeList();
}
else {
fNodeList = null;
}
}
/**
*
*/
private void ungetNode() {
if (fNodeList != null && fLastNode != null) {
fNodeList.addFirst(fLastNode);
}
}
}