| /******************************************************************************* |
| * Copyright (c) 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 |
| *******************************************************************************/ |
| package org.eclipse.wst.css.core.internal.formatter; |
| |
| |
| |
| import org.eclipse.core.runtime.Preferences; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.wst.css.core.internal.CSSCorePlugin; |
| import org.eclipse.wst.css.core.internal.cleanup.CSSCleanupStrategy; |
| import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts; |
| import org.eclipse.wst.css.core.internal.preferences.CSSCorePreferenceNames; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode; |
| import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| |
| |
| /** |
| * |
| */ |
| public class StyleDeclarationFormatter extends DefaultCSSSourceFormatter { |
| |
| private static StyleDeclarationFormatter instance; |
| |
| /** |
| * |
| */ |
| StyleDeclarationFormatter() { |
| super(); |
| } |
| |
| /** |
| * |
| */ |
| protected void formatBefore(ICSSNode node, ICSSNode child, String toAppend, StringBuffer source, IRegion exceptFor) { |
| CSSCleanupStrategy stgy = getCleanupStrategy(node); |
| |
| ICSSNode prev = (child != null) ? child.getPreviousSibling() : node.getLastChild(); |
| int start = (prev != null) ? ((IndexedRegion) prev).getEndOffset() : 0; |
| int end = (child != null) ? ((IndexedRegion) child).getStartOffset() : 0; |
| |
| // check no child |
| if (child == null && prev == null) |
| return; |
| |
| if (start > 0 && start < end) { // format source |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| // get meaning regions |
| CompoundRegion[] regions = null; |
| if (exceptFor == null) |
| regions = getRegionsWithoutWhiteSpaces(structuredDocument, new FormatRegion(start, end - start), stgy); |
| else { |
| String pickupType = CSSRegionContexts.CSS_DECLARATION_DELIMITER; |
| if (prev == null || child == null) |
| pickupType = null; |
| regions = getRegions(structuredDocument, new FormatRegion(start, end - start), exceptFor, pickupType); |
| } |
| // extract source |
| for (int i = 0; i < regions.length; i++) { |
| appendSpaceBefore(node, regions[i], source); |
| source.append(decoratedRegion(regions[i], 0, stgy)); // must |
| // be |
| // comments |
| } |
| } else if (prev != null && child != null) { // generate source : |
| // between two |
| // declarations |
| source.append(";");//$NON-NLS-1$ |
| } else if (prev == null) { // generate source : before the first |
| // declaration |
| org.eclipse.wst.css.core.internal.util.RegionIterator it = null; |
| if (end > 0) { |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| it = new org.eclipse.wst.css.core.internal.util.RegionIterator(structuredDocument, end - 1); |
| } else { |
| int pos = getChildInsertPos(node); |
| if (pos >= 0) { |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| it = new org.eclipse.wst.css.core.internal.util.RegionIterator(structuredDocument, pos - 1); |
| } |
| } |
| if (it != null) { |
| int limit = ((IndexedRegion) ((node.getParentNode() != null) ? node.getParentNode() : node)).getStartOffset(); |
| while (it.hasPrev()) { |
| ITextRegion curReg = it.prev(); |
| if (curReg.getType() == CSSRegionContexts.CSS_LBRACE || curReg.getType() == CSSRegionContexts.CSS_DECLARATION_DELIMITER) |
| break; |
| if (curReg.getType() != CSSRegionContexts.CSS_S && curReg.getType() != CSSRegionContexts.CSS_COMMENT) { |
| source.append(";");//$NON-NLS-1$ |
| break; |
| } |
| if (it.getStructuredDocumentRegion().getStartOffset(curReg) <= limit) |
| break; |
| } |
| } |
| } else if (child == null) { // generate source : after the last |
| // declaration |
| org.eclipse.wst.css.core.internal.util.RegionIterator it = null; |
| if (start > 0) { |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| it = new org.eclipse.wst.css.core.internal.util.RegionIterator(structuredDocument, start); |
| } else { |
| int pos = getChildInsertPos(node); |
| if (pos >= 0) { |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| it = new org.eclipse.wst.css.core.internal.util.RegionIterator(structuredDocument, pos); |
| } |
| } |
| if (it != null) { |
| int limit = ((IndexedRegion) ((node.getParentNode() != null) ? node.getParentNode() : node)).getEndOffset(); |
| while (it.hasNext()) { |
| ITextRegion curReg = it.next(); |
| if (curReg.getType() == CSSRegionContexts.CSS_RBRACE || curReg.getType() == CSSRegionContexts.CSS_DECLARATION_DELIMITER) |
| break; |
| if (curReg.getType() != CSSRegionContexts.CSS_S && curReg.getType() != CSSRegionContexts.CSS_COMMENT) { |
| source.append(";");//$NON-NLS-1$ |
| break; |
| } |
| if (limit <= it.getStructuredDocumentRegion().getEndOffset(curReg)) |
| break; |
| } |
| } |
| } |
| if (child == null) { |
| if (((IndexedRegion) node).getEndOffset() <= 0) { |
| // get next region |
| int pos = getChildInsertPos(node); |
| CompoundRegion toAppendRegion = null; |
| if (pos >= 0) { |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| IStructuredDocumentRegion flatNode = structuredDocument.getRegionAtCharacterOffset(pos); |
| toAppendRegion = new CompoundRegion(flatNode, flatNode.getRegionAtCharacterOffset(pos)); |
| } |
| appendDelimBefore(node.getParentNode(), toAppendRegion, source); |
| } |
| } else if ((prev != null || ((IndexedRegion) node).getEndOffset() <= 0)) { |
| Preferences preferences = CSSCorePlugin.getDefault().getPluginPreferences(); |
| |
| if (preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_ONE_PER_LINE) && (node.getOwnerDocument() != node || !preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_PROHIBIT_WRAP_ON_ATTR))) |
| appendDelimBefore(node, null, source); |
| else if (prev != null || node.getOwnerDocument() != node) |
| appendSpaceBefore(node, toAppend, source); |
| } |
| } |
| |
| /** |
| * |
| */ |
| protected void formatBefore(ICSSNode node, ICSSNode child, IRegion region, String toAppend, StringBuffer source) { |
| CSSCleanupStrategy stgy = getCleanupStrategy(node); |
| |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, region, stgy); |
| CompoundRegion[] outside = getOutsideRegions(structuredDocument, region); |
| |
| for (int i = 0; i < regions.length; i++) { |
| if (i != 0 || needS(outside[0])) |
| appendSpaceBefore(node, regions[i], source); |
| source.append(decoratedRegion(regions[i], 0, stgy)); // must be |
| // comments |
| } |
| Preferences preferences = CSSCorePlugin.getDefault().getPluginPreferences(); |
| if (needS(outside[1])) { |
| if (((IndexedRegion) child).getStartOffset() == region.getOffset() + region.getLength() && preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_ONE_PER_LINE) && (node.getOwnerDocument() != node || !preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_PROHIBIT_WRAP_ON_ATTR))) { |
| appendDelimBefore(node, null, source); |
| } else |
| appendSpaceBefore(node, toAppend, source); |
| } |
| } |
| |
| /** |
| * Insert the method's description here. |
| */ |
| public int getChildInsertPos(ICSSNode node) { |
| if (node == null) |
| return -1; |
| int pos = super.getChildInsertPos(node); |
| if (pos < 0) { |
| CSSSourceGenerator formatter = getParentFormatter(node); |
| return (formatter != null) ? formatter.getChildInsertPos(node.getParentNode()) : -1; |
| } |
| return pos; |
| } |
| |
| /** |
| * |
| */ |
| public synchronized static StyleDeclarationFormatter getInstance() { |
| if (instance == null) |
| instance = new StyleDeclarationFormatter(); |
| return instance; |
| } |
| |
| /** |
| * |
| * @return int |
| * @param node |
| * org.eclipse.wst.css.core.model.interfaces.ICSSNode |
| * @param insertPos |
| * int |
| */ |
| public int getLengthToReformatAfter(ICSSNode node, int insertPos) { |
| if (node == null) |
| return 0; |
| IndexedRegion nnode = (IndexedRegion) node; |
| if (insertPos < 0 || !nnode.contains(insertPos)) { |
| if (node.getParentNode() != null && nnode.getEndOffset() <= 0) { |
| CSSSourceGenerator pntFormatter = getParentFormatter(node); |
| if (pntFormatter != null) |
| return pntFormatter.getLengthToReformatAfter(node.getParentNode(), insertPos); |
| } |
| return 0; |
| } |
| return super.getLengthToReformatAfter(node, insertPos); |
| } |
| |
| /** |
| * |
| * @return int |
| * @param node |
| * org.eclipse.wst.css.core.model.interfaces.ICSSNode |
| * @param insertPos |
| * int |
| */ |
| public int getLengthToReformatBefore(ICSSNode node, int insertPos) { |
| if (node == null) |
| return 0; |
| IndexedRegion nnode = (IndexedRegion) node; |
| if (insertPos <= 0 || !nnode.contains(insertPos - 1)) { |
| if (node.getParentNode() != null && nnode.getEndOffset() <= 0) { |
| CSSSourceGenerator pntFormatter = getParentFormatter(node); |
| if (pntFormatter != null) |
| return pntFormatter.getLengthToReformatBefore(node.getParentNode(), insertPos); |
| } |
| return 0; |
| } |
| return super.getLengthToReformatBefore(node, insertPos); |
| } |
| } |