| /******************************************************************************* |
| * 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.ui.internal.contentassist; |
| |
| |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.Preferences; |
| import org.eclipse.jface.text.contentassist.ICompletionProposal; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.wst.css.core.internal.CSSCorePlugin; |
| import org.eclipse.wst.css.core.internal.parserz.CSSRegionContexts; |
| import org.eclipse.wst.css.core.internal.preferences.CSSCorePreferenceNames; |
| import org.eclipse.wst.css.ui.internal.image.CSSImageHelper; |
| import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion; |
| |
| abstract class CSSProposalGenerator { |
| |
| |
| protected class StringAndOffset { |
| StringAndOffset(String string, int offset) { |
| this.fString = string; |
| this.fOffset = offset; |
| } |
| |
| String fString; |
| int fOffset; |
| } |
| |
| protected CSSContentAssistContext fContext = null; |
| |
| /** |
| * CSSProposalGenerator constructor comment. |
| */ |
| private CSSProposalGenerator() { |
| super(); |
| } |
| |
| CSSProposalGenerator(CSSContentAssistContext context) { |
| this(); |
| fContext = context; |
| } |
| |
| /** |
| * |
| */ |
| protected boolean checkLeadingColon() { |
| boolean hasLeadingColon = false; |
| ITextRegion targetRegion = fContext.getTargetRegion(); |
| if (targetRegion == null && 0 < fContext.getCursorPos()) { |
| targetRegion = fContext.getRegionByOffset(fContext.getCursorPos() - 1); |
| if (targetRegion != null && targetRegion.getType() == CSSRegionContexts.CSS_SELECTOR_PSEUDO) { |
| hasLeadingColon = true; |
| } |
| } |
| else if (targetRegion != null) { |
| // BUG 92848 - Changed how pseudo-selectors are defined in the |
| // tokenizer |
| // The target region should be the CSS_SELECTOR_PSEUDO now |
| if (targetRegion.getType() == CSSRegionContexts.CSS_SELECTOR_PSEUDO) { |
| hasLeadingColon = true; |
| } |
| } |
| return hasLeadingColon; |
| } |
| |
| /** |
| * |
| */ |
| protected StringAndOffset generateBraces() { |
| StringBuffer buf = new StringBuffer(); |
| String lineDelimiter = fContext.getStructuredDocument().getLineDelimiter(); |
| Preferences preferences = CSSCorePlugin.getDefault().getPluginPreferences(); |
| String indentStr = getIndentString(); |
| if (preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_NEWLINE_ON_OPEN_BRACE)) { |
| buf.append(lineDelimiter); |
| } |
| buf.append("{");//$NON-NLS-1$ |
| if (preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_ONE_PER_LINE)) { |
| buf.append(lineDelimiter); |
| buf.append(indentStr); |
| } else { |
| buf.append(" ");//$NON-NLS-1$ |
| } |
| int offset = buf.length(); |
| if (preferences.getBoolean(CSSCorePreferenceNames.WRAPPING_ONE_PER_LINE)) { |
| buf.append(lineDelimiter); |
| } else { |
| buf.append(" ");//$NON-NLS-1$ |
| } |
| buf.append("}");//$NON-NLS-1$ |
| return new StringAndOffset(buf.toString(), offset); |
| } |
| |
| /** |
| * |
| */ |
| protected StringAndOffset generateParenthesis() { |
| StringBuffer buf = new StringBuffer(); |
| int offset; |
| buf.append("(");//$NON-NLS-1$ |
| offset = 1; |
| buf.append(")");//$NON-NLS-1$ |
| return new StringAndOffset(buf.toString(), offset); |
| } |
| |
| /** |
| * |
| */ |
| protected StringAndOffset generateQuotes() { |
| StringBuffer buf = new StringBuffer(); |
| char quoteChar = getQuoteChar(); |
| buf.append(quoteChar); |
| buf.append(quoteChar); |
| return new StringAndOffset(buf.toString(), 1); |
| } |
| |
| /** |
| * |
| */ |
| protected StringAndOffset generateSemicolon() { |
| StringBuffer buf = new StringBuffer(); |
| int offset; |
| buf.append(";");//$NON-NLS-1$ |
| offset = 0; |
| return new StringAndOffset(buf.toString(), offset); |
| } |
| |
| /** |
| * |
| */ |
| protected StringAndOffset generateURI() { |
| StringBuffer buf = new StringBuffer(); |
| |
| boolean isQuoteInURI = CSSCorePlugin.getDefault().getPluginPreferences().getBoolean(CSSCorePreferenceNames.FORMAT_QUOTE_IN_URI); |
| char quoteChar = getQuoteChar(); |
| buf.append("url(");//$NON-NLS-1$ |
| if (isQuoteInURI) { |
| buf.append(quoteChar); |
| } |
| int offset = buf.length(); |
| if (isQuoteInURI) { |
| buf.append(quoteChar); |
| } |
| buf.append(")");//$NON-NLS-1$ |
| return new StringAndOffset(buf.toString(), offset); |
| } |
| |
| abstract protected Iterator getCandidates(); |
| |
| List getProposals() { |
| List proposals = new ArrayList(); |
| |
| CSSImageHelper imageHelper = CSSImageHelper.getInstance(); |
| Iterator i = getCandidates(); |
| while (i.hasNext()) { |
| CSSCACandidate candidate = (CSSCACandidate) i.next(); |
| Image image = imageHelper.getImage(candidate.getImageType()); |
| ICompletionProposal item = new CompletionProposal(candidate.getReplacementString(), fContext.getReplaceBegin() + fContext.getDocumentOffset(), fContext.getTextToReplace().length(), candidate.getCursorPosition(), image, candidate.getDisplayString(), null, candidate.getDisplayString(), candidate.getMMNode()); |
| proposals.add(item); |
| } |
| |
| return proposals; |
| } |
| |
| /** |
| * |
| * @return char |
| */ |
| private char getQuoteChar() { |
| |
| String quoteStr = CSSCorePlugin.getDefault().getPluginPreferences().getString(CSSCorePreferenceNames.FORMAT_QUOTE); |
| char quoteChar = (quoteStr != null && 0 < quoteStr.length()) ? quoteStr.charAt(0) : '"'; |
| char attrQuote = fContext.getQuoteOfStyleAttribute(); |
| if (attrQuote != 0) { |
| if (attrQuote == '"' && quoteChar == '"') { |
| quoteChar = '\''; |
| } else if (attrQuote == '\'' && quoteChar == '\'') { |
| quoteChar = '"'; |
| } |
| } |
| return quoteChar; |
| } |
| |
| /** |
| * |
| */ |
| protected boolean isMatch(String text) { |
| String textToCompare = fContext.getTextToCompare(); |
| if (textToCompare.length() == 0) { |
| return true; |
| } else { |
| return (text.toUpperCase().indexOf(textToCompare.toUpperCase()) == 0); |
| } |
| /* |
| * String textToReplace = fContext.getTextToReplace(); if |
| * (textToReplace.length() == 0) { return true; } else { return |
| * (text.toUpperCase().indexOf(textToReplace.toUpperCase()) == 0); } |
| */ |
| } |
| |
| |
| private String getIndentString() { |
| StringBuffer indent = new StringBuffer(); |
| |
| Preferences preferences = CSSCorePlugin.getDefault().getPluginPreferences(); |
| if (preferences != null) { |
| char indentChar = ' '; |
| String indentCharPref = preferences.getString(CSSCorePreferenceNames.INDENTATION_CHAR); |
| if (CSSCorePreferenceNames.TAB.equals(indentCharPref)) { |
| indentChar = '\t'; |
| } |
| int indentationWidth = preferences.getInt(CSSCorePreferenceNames.INDENTATION_SIZE); |
| |
| for (int i = 0; i < indentationWidth; i++) { |
| indent.append(indentChar); |
| } |
| } |
| return indent.toString(); |
| } |
| } |