diff options
Diffstat (limited to 'bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelDeletionContext.java')
| -rw-r--r-- | bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelDeletionContext.java | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelDeletionContext.java b/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelDeletionContext.java deleted file mode 100644 index a864d433d0..0000000000 --- a/bundles/org.eclipse.wst.css.core/src/org/eclipse/wst/css/core/internal/document/CSSModelDeletionContext.java +++ /dev/null @@ -1,268 +0,0 @@ -/******************************************************************************* - * 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.ArrayList; -import java.util.Collection; -import java.util.Enumeration; -import java.util.Iterator; - -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.text.IStructuredDocumentRegion; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegionList; - - -/** - * - */ -class CSSModelDeletionContext { - - private int fOldStart = -1; - private int fOldLength = 0; - private int fNewStart = -1; - private int fNewLength = 0; - private int fLengthDifference = 0; - private IStructuredDocumentRegionList fOldStructuredDocumentRegions = null; - // private ICSSNode fRootNode = null; - private int fRemovedRangeBegin = -1; - private int fRemovedRangeEnd = -1; - private CSSNodeListImpl fNodesToBeRemoved = new CSSNodeListImpl(); - - /** - * CSSModelDeletionContext constructor comment. - */ - CSSModelDeletionContext(ICSSNode rootNode) { - super(); - - // fRootNode = rootNode; - } - - /** - * - */ - boolean addNodeToBeRemoved(ICSSNode node) { - int nNodes = fNodesToBeRemoved.getLength(); - for (int i = 0; i < nNodes; i++) { - ICSSNode parent = fNodesToBeRemoved.item(i); - if (CSSModelUtil.isParentOf(parent, node)) { - return false; - } - } - fNodesToBeRemoved.appendNode(node); - return true; - } - - /** - * - */ - void expandRemovedRangeBegin(IStructuredDocumentRegion flatNode) { - if (flatNode == null) { - return; - } - int newBegin = flatNode.getStart(); // fOldStart == fNewStart, right?? - if (fRemovedRangeBegin < 0 || newBegin < fRemovedRangeBegin) { - fRemovedRangeBegin = newBegin; - } - } - - /** - * - */ - void expandRemovedRangeEnd(IStructuredDocumentRegion flatNode) { - if (flatNode == null) { - return; - } - int newEnd = flatNode.getEnd() + ((isOldNode(flatNode)) ? fLengthDifference : 0); - if (fRemovedRangeEnd < 0 || fRemovedRangeEnd < newEnd) { - fRemovedRangeEnd = newEnd; - } - } - - /** - * - */ - private CSSStructuredDocumentRegionContainer findContainer(CSSNodeImpl parent, IStructuredDocumentRegion flatNode) { - if (parent instanceof CSSStructuredDocumentRegionContainer) { - // Am i a container of flatNode? - IStructuredDocumentRegion firstNode = ((CSSStructuredDocumentRegionContainer) parent).getFirstStructuredDocumentRegion(); - IStructuredDocumentRegion lastNode = ((CSSStructuredDocumentRegionContainer) parent).getLastStructuredDocumentRegion(); - int firstStart = getOriginalOffset(firstNode); - int lastStart = getOriginalOffset(lastNode); - int start = flatNode.getStart(); - - if (firstStart <= start && start <= lastStart) { - // I am a container, is my child a container ? - for (ICSSNode node = parent.getFirstChild(); node != null; node = node.getNextSibling()) { - if (node instanceof CSSNodeImpl) { - CSSStructuredDocumentRegionContainer container = findContainer((CSSNodeImpl) node, flatNode); - if (container != null) { - return container; - } - } - } - return (CSSStructuredDocumentRegionContainer) parent; - } - } - - return null; - } - - /** - * - */ - CSSStructuredDocumentRegionContainer findDeletionTarget(CSSNodeImpl parent, IStructuredDocumentRegion flatNode) { - CSSStructuredDocumentRegionContainer target = findContainer(parent, flatNode); - if (target == null) { - return null; - } - - // System.out.print(flatNode.toString() + ": "); - - // child a(=====)b(=====)c - // parent (================) a,c can remove parent, but b cannot. - - ICSSNode child; - - for (child = target.getFirstChild(); child != null && !(child instanceof CSSStructuredDocumentRegionContainer); child = child.getNextSibling()) { - // just advancing - } - - if (child == null) { - // System.out.println("target has no children."); // TESTBYCOZY - return target; // has no child containers. - } - else { - IStructuredDocumentRegion firstNode = ((CSSStructuredDocumentRegionContainer) child).getFirstStructuredDocumentRegion(); - if (flatNode.getStart() < getOriginalOffset(firstNode)) { - // System.out.println("flatNode is in front of first child"); - // // TESTBYCOZY - return target; // a - } - } - - for (child = target.getLastChild(); child != null && !(child instanceof CSSStructuredDocumentRegionContainer); child = child.getPreviousSibling()) { - // just advancing - } - - if (child == null) { - // System.out.println("target has no children."); // TESTBYCOZY - return target; // has no child containers. - } - else { - IStructuredDocumentRegion firstNode = ((CSSStructuredDocumentRegionContainer) child).getFirstStructuredDocumentRegion(); - if (getOriginalOffset(firstNode) < flatNode.getStart()) { - // System.out.println("flatNode is in after of last child"); - // // TESTBYCOZY - return target; // c - } - } - - // System.out.println("flatNode inner of children"); // TESTBYCOZY - return null; // b - } - - /** - * - */ - Iterator getNodesToBeRemoved() { - Collection nodes = new ArrayList(); - int nNodes = fNodesToBeRemoved.getLength(); - for (int i = 0; i < nNodes; i++) { - nodes.add(fNodesToBeRemoved.item(i)); - } - return nodes.iterator(); - } - - /** - * - */ - private int getOriginalOffset(IStructuredDocumentRegion flatNode) { - int offset = 0; - if (flatNode != null) { - offset = flatNode.getStart(); - if (0 <= fLengthDifference) { - if (fNewStart + fNewLength < offset) { - offset -= fLengthDifference; - } - } - else { - if (fOldStart + fOldLength <= offset || (fNewStart < 0 && fOldStart <= offset && !isOldNode(flatNode)) || (0 <= fNewStart && fNewStart + fNewLength <= offset && !isOldNode(flatNode))) { - offset -= fLengthDifference; - } - } - } - - return offset; - } - - /** - * - */ - int getRemovedRangeBegin() { - return fRemovedRangeBegin; - } - - /** - * - */ - int getRemovedRangeEnd() { - return fRemovedRangeEnd; - } - - /** - * - */ - private boolean isOldNode(IStructuredDocumentRegion flatNode) { - if (fOldStructuredDocumentRegions != null) { - for (Enumeration e = fOldStructuredDocumentRegions.elements(); e.hasMoreElements();) { - if (e.nextElement() == flatNode) { - return true; - } - } - } - - return false; - } - - /** - * - */ - void setupContext(IStructuredDocumentRegionList newStructuredDocumentRegions, IStructuredDocumentRegionList oldStructuredDocumentRegions) { - IStructuredDocumentRegion flatNode = null; - fOldLength = CSSUtil.getTextLength(oldStructuredDocumentRegions); - if (oldStructuredDocumentRegions != null && 0 < oldStructuredDocumentRegions.getLength() && (flatNode = oldStructuredDocumentRegions.item(0)) != null) { - fOldStart = flatNode.getStart(); - } - else { - fOldStart = -1; - } - fNewLength = CSSUtil.getTextLength(newStructuredDocumentRegions); - if (newStructuredDocumentRegions != null && 0 < newStructuredDocumentRegions.getLength() && (flatNode = newStructuredDocumentRegions.item(0)) != null) { - fNewStart = flatNode.getStart(); - fRemovedRangeBegin = fNewStart; - fRemovedRangeEnd = fNewStart + fNewLength; - } - else { - fNewStart = -1; - fRemovedRangeBegin = fRemovedRangeEnd = -1; - } - fLengthDifference = fNewLength - fOldLength; - fOldStructuredDocumentRegions = oldStructuredDocumentRegions; - - // cleanup nodes - while (0 < fNodesToBeRemoved.getLength()) { - fNodesToBeRemoved.removeNode(0); - } - } -} |