| /******************************************************************************* |
| * 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.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.ICSSAttr; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode; |
| import org.eclipse.wst.css.core.internal.provisional.document.ICSSPageRule; |
| import org.eclipse.wst.css.core.internal.util.RegionIterator; |
| 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 PageRuleFormatter extends DeclContainerFormatter { |
| |
| public final static java.lang.String PAGE = "@page";//$NON-NLS-1$ |
| private static PageRuleFormatter instance; |
| |
| /** |
| * |
| */ |
| PageRuleFormatter() { |
| super(); |
| } |
| |
| /** |
| * |
| */ |
| public StringBuffer formatAttrChanged(ICSSNode node, ICSSAttr attr, boolean insert, AttrChangeContext context) { |
| StringBuffer buf = new StringBuffer(); |
| if (node == null || attr == null) |
| return buf; |
| |
| if (!ICSSPageRule.SELECTOR.equalsIgnoreCase(attr.getName())) |
| return buf; |
| |
| // get region to replace |
| if (context != null && ((IndexedRegion) node).getEndOffset() > 0) { |
| if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0) { |
| IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(((IndexedRegion) attr).getEndOffset() - 1); |
| ITextRegion region = flatNode.getRegionAtCharacterOffset(((IndexedRegion) attr).getEndOffset() - 1); |
| RegionIterator it = new RegionIterator(flatNode, region); |
| it.next(); |
| if (it.hasNext()) { |
| ITextRegion next = it.next(); |
| if (next.getType() == CSSRegionContexts.CSS_S) |
| context.end = it.getStructuredDocumentRegion().getEndOffset(next); |
| else |
| context.end = it.getStructuredDocumentRegion().getEndOffset(region); |
| } |
| else |
| context.end = it.getStructuredDocumentRegion().getEndOffset(region); |
| context.start = it.getStructuredDocumentRegion().getStartOffset(region); |
| } |
| else { |
| int pos = getAttrInsertPos(node, attr.getName()); |
| context.start = pos; |
| context.end = pos; |
| /* |
| * IStructuredDocumentRegion flatNode = |
| * node.getOwnerDocument().getModel().getStructuredDocument().getNodeAtCharacterOffset(((IndexedRegion)node).getStartOffset()); |
| * ITextRegion region = |
| * flatNode.getRegionAtCharacterOffset(((IndexedRegion)node).getStartOffset()); |
| * if (region.getType() == CSSRegionContexts.S) { |
| * context.start = region.getStartOffset(); context.end = |
| * region.getEndOffset(); } else { context.start = |
| * flatNode.getEndOffset() + 1; context.end = |
| * flatNode.getEndOffset(); } |
| */} |
| } |
| // generate text |
| if (insert) { |
| String val = attr.getValue(); |
| if (val != null && val.length() > 0) { |
| buf.append(val); |
| appendSpaceBefore(node, "", buf);//$NON-NLS-1$ |
| } |
| } |
| return buf; |
| } |
| |
| /** |
| * |
| */ |
| protected void formatPre(ICSSNode node, StringBuffer source) { |
| CSSCleanupStrategy stgy = getCleanupStrategy(node); |
| |
| int start = ((IndexedRegion) node).getStartOffset(); |
| int end = (node.getFirstChild() != null && ((IndexedRegion) node.getFirstChild()).getEndOffset() > 0) ? ((IndexedRegion) node.getFirstChild()).getStartOffset() : getChildInsertPos(node); |
| |
| if (end > 0) { // format source |
| IStructuredDocument structuredDocument = node.getOwnerDocument().getModel().getStructuredDocument(); |
| CompoundRegion[] regions = getRegionsWithoutWhiteSpaces(structuredDocument, new FormatRegion(start, end - start), stgy); |
| for (int i = 0; i < regions.length; i++) { |
| if (i != 0) |
| appendSpaceBetween(node, regions[i - 1], regions[i], source); |
| source.append(decoratedIdentRegion(regions[i], stgy)); |
| } |
| } |
| else { // generate source |
| String str = PAGE; |
| if (CSSCorePlugin.getDefault().getPluginPreferences().getInt(CSSCorePreferenceNames.CASE_IDENTIFIER) == CSSCorePreferenceNames.UPPER) |
| str = PAGE.toUpperCase(); |
| source.append(str); |
| str = ((ICSSPageRule) node).getSelectorText(); |
| if (str != null && str.length() > 0) { |
| appendSpaceBefore(node, str, source); |
| source.append(str); |
| } |
| appendSpaceBefore(node, "{", source);//$NON-NLS-1$ |
| source.append("{");//$NON-NLS-1$ |
| } |
| appendDelimBefore(node, null, source); |
| } |
| |
| /** |
| * |
| */ |
| protected void formatPre(ICSSNode node, IRegion region, 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])) |
| appendSpaceBetween(node, (i == 0) ? outside[0] : regions[i - 1], regions[i], source); |
| source.append(decoratedIdentRegion(regions[i], stgy)); |
| } |
| if (needS(outside[1])) { |
| if (isIncludesPreEnd(node, region)) |
| appendDelimBefore(node, null, source); |
| else |
| appendSpaceBetween(node, regions[regions.length - 1], outside[1], source); |
| } |
| } |
| |
| /** |
| * |
| */ |
| public int getAttrInsertPos(ICSSNode node, String attrName) { |
| if (node == null || attrName == null || attrName.length() == 0) |
| return -1; |
| |
| if (!ICSSPageRule.SELECTOR.equalsIgnoreCase(attrName)) |
| return -1; |
| |
| ICSSAttr attr = (ICSSAttr) node.getAttributes().getNamedItem(ICSSPageRule.SELECTOR); |
| if (attr != null && ((IndexedRegion) attr).getEndOffset() > 0) |
| return ((IndexedRegion) attr).getStartOffset(); |
| else if (((IndexedRegion) node).getEndOffset() > 0) { |
| IStructuredDocumentRegion flatNode = node.getOwnerDocument().getModel().getStructuredDocument().getRegionAtCharacterOffset(((IndexedRegion) node).getStartOffset()); |
| ITextRegion region = flatNode.getRegionAtCharacterOffset(((IndexedRegion) node).getStartOffset()); |
| RegionIterator it = new RegionIterator(flatNode, region); |
| while (it.hasNext()) { |
| region = it.next(); |
| if (region.getType() == CSSRegionContexts.CSS_LBRACE) { |
| return it.getStructuredDocumentRegion().getStartOffset(region); |
| } |
| if (it.getStructuredDocumentRegion().getEndOffset(region) >= ((IndexedRegion) node).getEndOffset()) |
| break; |
| } |
| } |
| return ((IndexedRegion) node).getStartOffset(); |
| } |
| |
| /** |
| * |
| */ |
| public synchronized static PageRuleFormatter getInstance() { |
| if (instance == null) |
| instance = new PageRuleFormatter(); |
| return instance; |
| } |
| } |