X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/preferences/TemplateVariableProcessor.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/preferences/TemplateVariableProcessor.java
new file mode 100644
index 0000000..ea9665c
--- /dev/null
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/text/template/preferences/TemplateVariableProcessor.java
@@ -0,0 +1,149 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.text.template.preferences;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Iterator;
+import java.util.List;
+
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.contentassist.ICompletionProposal;
+import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
+import org.eclipse.jface.text.contentassist.IContextInformation;
+import org.eclipse.jface.text.contentassist.IContextInformationValidator;
+import org.eclipse.jface.text.templates.TemplateContextType;
+import org.eclipse.jface.text.templates.TemplateVariableResolver;
+
+public class TemplateVariableProcessor implements IContentAssistProcessor {
+
+	private static Comparator fgTemplateVariableProposalComparator = new Comparator() {
+		public int compare(Object arg0, Object arg1) {
+			TemplateVariableProposal proposal0 = (TemplateVariableProposal) arg0;
+			TemplateVariableProposal proposal1 = (TemplateVariableProposal) arg1;
+
+			return proposal0.getDisplayString().compareTo(
+					proposal1.getDisplayString());
+		}
+
+		public boolean equals(Object arg0) {
+			return false;
+		}
+	};
+
+	/** the context type */
+	private TemplateContextType fContextType;
+
+	/**
+	 * Sets the context type.
+	 */
+	public void setContextType(TemplateContextType contextType) {
+		fContextType = contextType;
+	}
+
+	/**
+	 * Gets the context type.
+	 */
+	public TemplateContextType getContextType() {
+		return fContextType;
+	}
+
+	/*
+	 * @see IContentAssistProcessor#computeCompletionProposals(ITextViewer, int)
+	 */
+	public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer,
+			int documentOffset) {
+
+		if (fContextType == null)
+			return null;
+
+		List proposals = new ArrayList();
+
+		String text = viewer.getDocument().get();
+		int start = getStart(text, documentOffset);
+		int end = documentOffset;
+
+		String string = text.substring(start, end);
+		String prefix = (string.length() >= 2) ? string.substring(2) : null;
+
+		int offset = start;
+		int length = end - start;
+
+		for (Iterator iterator = fContextType.resolvers(); iterator.hasNext();) {
+			TemplateVariableResolver variable = (TemplateVariableResolver) iterator
+					.next();
+
+			if (prefix == null || variable.getType().startsWith(prefix))
+				proposals.add(new TemplateVariableProposal(variable, offset,
+						length, viewer));
+		}
+
+		Collections.sort(proposals, fgTemplateVariableProposalComparator);
+		return (ICompletionProposal[]) proposals
+				.toArray(new ICompletionProposal[proposals.size()]);
+	}
+
+	/* Guesses the start position of the completion */
+	private int getStart(String string, int end) {
+		int start = end;
+
+		if (start >= 1 && string.charAt(start - 1) == '$')
+			return start - 1;
+
+		while ((start != 0)
+				&& Character.isUnicodeIdentifierPart(string.charAt(start - 1)))
+			start--;
+
+		if (start >= 2 && string.charAt(start - 1) == '{'
+				&& string.charAt(start - 2) == '$')
+			return start - 2;
+
+		return end;
+	}
+
+	/*
+	 * @see IContentAssistProcessor#computeContextInformation(ITextViewer, int)
+	 */
+	public IContextInformation[] computeContextInformation(ITextViewer viewer,
+			int documentOffset) {
+		return null;
+	}
+
+	/*
+	 * @see IContentAssistProcessor#getCompletionProposalAutoActivationCharacters()
+	 */
+	public char[] getCompletionProposalAutoActivationCharacters() {
+		return new char[] { '$' };
+	}
+
+	/*
+	 * @see IContentAssistProcessor#getContextInformationAutoActivationCharacters()
+	 */
+	public char[] getContextInformationAutoActivationCharacters() {
+		return null;
+	}
+
+	/*
+	 * @see IContentAssistProcessor#getErrorMessage()
+	 */
+	public String getErrorMessage() {
+		return null;
+	}
+
+	/*
+	 * @see IContentAssistProcessor#getContextInformationValidator()
+	 */
+	public IContextInformationValidator getContextInformationValidator() {
+		return null;
+	}
+
+}