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Diffstat (limited to 'bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelUpdater.java')
| -rw-r--r-- | bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelUpdater.java | 518 |
1 files changed, 0 insertions, 518 deletions
diff --git a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelUpdater.java b/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelUpdater.java deleted file mode 100644 index 5bb8a8b453..0000000000 --- a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelUpdater.java +++ /dev/null @@ -1,518 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2004, 2010 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 org.eclipse.wst.css.core.internal.formatter.AttrChangeContext; -import org.eclipse.wst.css.core.internal.formatter.CSSSourceFormatterFactory; -import org.eclipse.wst.css.core.internal.formatter.CSSSourceGenerator; -import org.eclipse.wst.css.core.internal.provisional.document.ICSSAttr; -import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode; -import org.eclipse.wst.css.core.internal.util.CSSUtil; -import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier; -import org.eclipse.wst.sse.core.internal.provisional.events.StructuredDocumentEvent; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; -import org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument; - - -/** - * - */ -class CSSModelUpdater { - - private CSSModelImpl fModel = null; - private CSSModelParser fParser = null; - - /** - * CSSModelUpdater constructor comment. - */ - CSSModelUpdater() { - super(); - } - - /** - * - */ - CSSModelUpdater(CSSModelImpl model) { - super(); - fModel = model; - } - - /** - * @param parentNode - * org.eclipse.wst.css.core.model.CSSNodeImpl - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private void attrInserted(CSSNodeImpl parentNode, CSSAttrImpl attr) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(parentNode); - - if (formatter == null) { - CSSUtil.debugOut("Cannot get format adapter : " + parentNode.getClass().toString());//$NON-NLS-1$ - return; - } - - short updateMode = CSSModelUpdateContext.UPDATE_INSERT_RCONTAINER; - fParser.setupUpdateContext(updateMode, parentNode, attr); - - // get formatted info - AttrChangeContext region = new AttrChangeContext(); - String text = new String(formatter.formatAttrChanged(parentNode, attr, true, region)); - - // set text - insertText(region.start, region.end - region.start, text); - - fParser.cleanupUpdateContext(); - } - - /** - * @param parentNode - * org.eclipse.wst.css.core.model.CSSNodeImpl - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private void attrRemoved(CSSNodeImpl parentNode, CSSAttrImpl attr) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(parentNode); - - if (formatter == null) { - CSSUtil.debugOut("Cannot get format adapter : " + parentNode.getClass().toString());//$NON-NLS-1$ - return; - } - - short updateMode = CSSModelUpdateContext.UPDATE_REMOVE_RCONTAINER; - fParser.setupUpdateContext(updateMode, parentNode, attr); - - // get formatted info - AttrChangeContext region = new AttrChangeContext(); - String text = new String(formatter.formatAttrChanged(parentNode, attr, false, region)); - - // set text - insertText(region.start, region.end - region.start, text); - - fParser.cleanupUpdateContext(); - } - - /** - * - */ - void attrReplaced(CSSNodeImpl parentNode, CSSNodeImpl newAttr, CSSNodeImpl oldAttr) { - if (parentNode == null) { - return; - } - - if (oldAttr != null) { - attrRemoved(parentNode, (CSSAttrImpl) oldAttr); - } - - if (newAttr != null) { - attrInserted(parentNode, (CSSAttrImpl) newAttr); - } - } - - /** - * - */ - private void childInserted(CSSNodeImpl parentNode, CSSNodeImpl node) { - short updateMode = CSSModelUpdateContext.UPDATE_IDLE; - - if (node instanceof CSSStructuredDocumentRegionContainer) { - updateMode = CSSModelUpdateContext.UPDATE_INSERT_FNCONTAINER; - } - else if (node instanceof CSSRegionContainer) { - updateMode = CSSModelUpdateContext.UPDATE_INSERT_RCONTAINER; - } - else { - CSSUtil.debugOut("What's this node? : " + node.getClass().toString());//$NON-NLS-1$ - return; - } - - fParser.setupUpdateContext(updateMode, parentNode, node); - - defaultInserted(parentNode, node); - - fParser.cleanupUpdateContext(); - } - - /** - * - */ - private void childRemoved(CSSNodeImpl parentNode, CSSNodeImpl node) { - short updateMode = CSSModelUpdateContext.UPDATE_IDLE; - - if (node instanceof CSSStructuredDocumentRegionContainer) { - updateMode = CSSModelUpdateContext.UPDATE_REMOVE_FNCONTAINER; - } - else if (node instanceof CSSRegionContainer) { - updateMode = CSSModelUpdateContext.UPDATE_REMOVE_RCONTAINER; - } - else { - CSSUtil.debugOut("What's this node? : " + node.getClass().toString());//$NON-NLS-1$ - return; - } - - fParser.setupUpdateContext(updateMode, parentNode, node); - - CSSNodeImpl prev = getOldPrevious(parentNode, node); - CSSNodeImpl next = getOldNext(parentNode, node); - int insertPos = -1, endPos = -1; - String source = "";//$NON-NLS-1$ - if (prev != null) { - insertPos = prev.getEndOffset(); - } - else { - insertPos = node.getStartOffset(); - insertPos -= nearestSpaceLengthBefore(parentNode, insertPos); - } - if (next != null) { - endPos = next.getStartOffset(); - } - else { - endPos = node.getEndOffset(); - endPos += nearestSpaceLengthAfter(parentNode, endPos); - } - source = getSpaceBefore(parentNode, next, node); - if (source.length() > 0) { - insertText(insertPos, endPos - insertPos, source); - } - else { - removeText(insertPos, endPos - insertPos); - } - - fParser.cleanupUpdateContext(); - } - - /** - * - */ - void childReplaced(CSSNodeImpl parentNode, CSSNodeImpl newChild, CSSNodeImpl oldChild) { - if (parentNode == null) { - return; - } - - if (oldChild != null) { - childRemoved(parentNode, oldChild); - } - - if (newChild != null) { - childInserted(parentNode, newChild); - } - } - - /** - * - */ - private StructuredDocumentEvent defaultInserted(CSSNodeImpl parentNode, CSSNodeImpl node) { - int insertPos = -1; - ICSSNode sibling; - String preSpace = "", postSpace = "";//$NON-NLS-2$//$NON-NLS-1$ - int length = 0; - - if (insertPos < 0) { - if ((sibling = node.getPreviousSibling()) != null) { - // after previous child - insertPos = getTextEnd(sibling); - } - } - - if (insertPos < 0) { - if ((sibling = node.getNextSibling()) != null) { - // before next child - insertPos = getTextStart(sibling); - } - } - - if (insertPos < 0) { - // position of parent - insertPos = getChildInsertPos(parentNode); - } - - if (insertPos < 0) { - // firsttime - insertPos = 0; - } - - // format previous spaces - length = nearestSpaceLengthBefore(parentNode, insertPos); - insertPos -= length; - preSpace = getSpaceBefore(parentNode, node, null); - // format post spaces - length += nearestSpaceLengthAfter(parentNode, insertPos + length); - postSpace = getSpaceBefore(parentNode, node.getNextSibling(), null); - - // set text - String text = preSpace + node.generateSource().trim() + postSpace; - return insertText(insertPos, length, text); - } - - /** - * @return int - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private int getChildInsertPos(CSSNodeImpl node) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(node); - if (formatter != null) - return formatter.getChildInsertPos(node); - else - return node.getEndOffset(); - } - - /** - * @return org.eclipse.wst.css.core.model.CSSNodeImpl - * @param parentNode - * org.eclipse.wst.css.core.model.CSSNodeImpl - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private CSSNodeImpl getOldNext(CSSNodeImpl parentNode, CSSNodeImpl node) { - CSSNodeImpl child = (CSSNodeImpl) parentNode.getLastChild(); - CSSNodeImpl ret = null; - while (child != null) { - if (node.getEndOffset() < child.getEndOffset()) - ret = child; - else - break; - child = (CSSNodeImpl) child.getPreviousSibling(); - } - return ret; - } - - /** - * @return org.eclipse.wst.css.core.model.CSSNodeImpl - * @param parentNode - * org.eclipse.wst.css.core.model.CSSNodeImpl - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private CSSNodeImpl getOldPrevious(CSSNodeImpl parentNode, CSSNodeImpl node) { - CSSNodeImpl child = (CSSNodeImpl) parentNode.getFirstChild(); - CSSNodeImpl ret = null; - while (child != null) { - if (child.getStartOffset() < node.getStartOffset()) - ret = child; - else - break; - child = (CSSNodeImpl) child.getNextSibling(); - } - return ret; - } - - /** - * @return java.lang.String - * @param parentNode - * org.eclipse.wst.css.core.model.CSSNodeImpl - * @param node - * org.eclipse.wst.css.core.model.CSSNodeImpl - */ - private String getSpaceBefore(ICSSNode parentNode, ICSSNode node, ICSSNode toRemove) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter((INodeNotifier) parentNode); - - if (formatter != null) { - org.eclipse.jface.text.IRegion exceptFor = null; - if (toRemove != null) { - CSSNodeImpl remove = (CSSNodeImpl) toRemove; - exceptFor = new org.eclipse.jface.text.Region(remove.getStartOffset(), remove.getEndOffset() - remove.getStartOffset()); - } - return formatter.formatBefore(parentNode, node, exceptFor).toString(); - } - else - return "";//$NON-NLS-1$ - } - - /** - * - */ - private int getTextEnd(ICSSNode node) { - int end = -1; - if (node != null) { - if (node instanceof CSSStructuredDocumentRegionContainer) { - end = ((CSSStructuredDocumentRegionContainer) node).getEndOffset(); - } - else if (node instanceof CSSRegionContainer) { - end = ((CSSRegionContainer) node).getEndOffset(); - } - } - return end; - } - - /** - * - */ - private int getTextStart(ICSSNode node) { - int start = -1; - if (node != null) { - if (node instanceof CSSStructuredDocumentRegionContainer) { - start = ((CSSStructuredDocumentRegionContainer) node).getStartOffset(); - } - else if (node instanceof CSSRegionContainer) { - start = ((CSSRegionContainer) node).getStartOffset(); - } - } - return start; - } - - /** - * - */ - private StructuredDocumentEvent insertText(int start, int oldLength, String text) { - StructuredDocumentEvent result = null; - BasicStructuredDocument structuredDocument = (BasicStructuredDocument) fModel.getStructuredDocument(); - if (structuredDocument != null) { - if (text != null && 0 < oldLength && start + oldLength <= structuredDocument.getLength()) { - // minimize text change - String delText = structuredDocument.get(start, oldLength); - int newLength = text.length(); - int shorterLen = Math.min(oldLength, newLength); - int stMatchLen; - for (stMatchLen = 0; stMatchLen < shorterLen && text.charAt(stMatchLen) == delText.charAt(stMatchLen); stMatchLen++) { - // - } - if (0 < stMatchLen && stMatchLen < shorterLen && text.charAt(stMatchLen - 1) == 0x000d && (text.charAt(stMatchLen) == 0x000a || delText.charAt(stMatchLen) == 0x000a)) { - // must not divide 0d->0a sequence - stMatchLen--; - } - if (stMatchLen == shorterLen) { - if (oldLength < newLength) { // just insert - oldLength = 0; - start += stMatchLen; - text = text.substring(stMatchLen); - } - else if (newLength < oldLength) { // just remove - oldLength -= stMatchLen; - start += stMatchLen; - text = null; - } - else { // nothing to do - oldLength = 0; - text = null; - } - } - else { - int edMatchLen; - for (edMatchLen = 0; stMatchLen + edMatchLen < shorterLen && text.charAt(newLength - edMatchLen - 1) == delText.charAt(oldLength - edMatchLen - 1); edMatchLen++) { - // - } - if (0 < edMatchLen && text.charAt(newLength - edMatchLen) == 0x000a && ((edMatchLen < newLength && text.charAt(newLength - edMatchLen - 1) == 0x000d) || (edMatchLen < oldLength && delText.charAt(oldLength - edMatchLen - 1) == 0x000d))) { - // must not divide 0d->0a sequence - edMatchLen--; - } - oldLength -= stMatchLen + edMatchLen; - start += stMatchLen; - if (stMatchLen + edMatchLen < newLength) { - text = text.substring(stMatchLen, newLength - edMatchLen); - } - else { - text = null; - } - } - } - if (0 < oldLength || text != null) { - // String delText = structuredDocument.get(start, oldLength); - result = structuredDocument.replaceText(fModel, start, oldLength, text); - } - } - return result; - } - - /** - * @return int - * @param insertPos - * int - */ - private int nearestSpaceLengthAfter(CSSNodeImpl node, int insertPos) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(node); - if (formatter != null) { - return formatter.getLengthToReformatAfter(node, insertPos); - } - else - return 0; - } - - /** - * @return int - * @param insertPos - * int - */ - private int nearestSpaceLengthBefore(CSSNodeImpl node, int insertPos) { - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(node); - if (formatter != null) { - return formatter.getLengthToReformatBefore(node, insertPos); - } - else - return 0; - } - - /** - * - */ - private StructuredDocumentEvent removeText(int start, int length) { - StructuredDocumentEvent result = null; - IStructuredDocument structuredDocument = fModel.getStructuredDocument(); - if (structuredDocument != null) { - result = structuredDocument.replaceText(fModel, start, length, new String(""));//$NON-NLS-1$ - } - return result; - } - - /** - * - */ - void setParser(CSSModelParser parser) { - fParser = parser; - } - - /** - * - */ - void valueChanged(CSSNodeImpl node, String oldValue) { - if (!(node instanceof CSSRegionContainer)) { - CSSUtil.debugOut("Too Bad.." + //$NON-NLS-1$ - ((node == null) ? "null" : node.getClass().toString()));//$NON-NLS-1$ - return; - } - - int start = node.getStartOffset(); - - if (node.getNodeType() == ICSSNode.ATTR_NODE) { - ICSSAttr attr = (ICSSAttr) node; - CSSSourceGenerator formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter((INodeNotifier) attr.getOwnerCSSNode()); - if (formatter != null) - start = formatter.getAttrInsertPos(attr.getOwnerCSSNode(), attr.getName()); - } - - int oldLength = (oldValue == null) ? 0 : oldValue.length(); - // flash old IStructuredDocumentRegion/ITextRegion - if (node instanceof CSSStructuredDocumentRegionContainer) { - ((CSSStructuredDocumentRegionContainer) node).setFirstStructuredDocumentRegion(null); - ((CSSStructuredDocumentRegionContainer) node).setLastStructuredDocumentRegion(null); - } - else if (node instanceof CSSRegionContainer) { - ((CSSRegionContainer) node).setRangeRegion(null, null, null); - } - // generate new source - String newValue = node.generateSource(); - - ICSSNode parent; - if (node.getNodeType() == ICSSNode.ATTR_NODE) { - parent = ((ICSSAttr) node).getOwnerCSSNode(); - } - else { - parent = node.getParentNode(); - } - - fParser.setupUpdateContext(CSSModelUpdateContext.UPDATE_CHANGE_RCONTAINER, parent, node); - - insertText(start, oldLength, newValue); - - fParser.cleanupUpdateContext(); - } -} |