--- /dev/null
+/*******************************************************************************
+ * 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.contentassist;
+
+import java.util.ArrayList;
+
+import net.sourceforge.phpdt.core.ICompilationUnit;
+import net.sourceforge.phpdt.internal.corext.Assert;
+import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitContext;
+import net.sourceforge.phpdt.internal.corext.template.php.CompilationUnitContextType;
+import net.sourceforge.phpdt.internal.ui.PHPUiImages;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.ITextViewer;
+import org.eclipse.jface.text.Region;
+import org.eclipse.jface.text.templates.GlobalTemplateVariables;
+import org.eclipse.jface.text.templates.Template;
+import org.eclipse.jface.text.templates.TemplateContextType;
+import org.eclipse.swt.graphics.Point;
+
+public class TemplateEngine {
+
+ private static final String $_LINE_SELECTION= "${" + GlobalTemplateVariables.LineSelection.NAME + "}"; //$NON-NLS-1$ //$NON-NLS-2$
+ private static final String $_WORD_SELECTION= "${" + GlobalTemplateVariables.WordSelection.NAME + "}"; //$NON-NLS-1$ //$NON-NLS-2$
+
+ /** The context type. */
+ private TemplateContextType fContextType;
+ /** The result proposals. */
+ private ArrayList fProposals= new ArrayList();
+
+ /**
+ * Creates the template engine for a particular context type.
+ * See <code>TemplateContext</code> for supported context types.
+ */
+ public TemplateEngine(TemplateContextType contextType) {
+ Assert.isNotNull(contextType);
+ fContextType= contextType;
+ }
+
+ /**
+ * Empties the collector.
+ */
+ public void reset() {
+ fProposals.clear();
+ }
+
+ /**
+ * Returns the array of matching templates.
+ */
+ public TemplateProposal[] getResults() {
+ return (TemplateProposal[]) fProposals.toArray(new TemplateProposal[fProposals.size()]);
+ }
+
+ /**
+ * Inspects the context of the compilation unit around <code>completionPosition</code>
+ * and feeds the collector with proposals.
+ * @param viewer the text viewer
+ * @param completionPosition the context position in the document of the text viewer
+ * @param compilationUnit the compilation unit (may be <code>null</code>)
+ */
+ public void complete(ITextViewer viewer, int completionPosition, ICompilationUnit compilationUnit) {
+ IDocument document= viewer.getDocument();
+
+ if (!(fContextType instanceof CompilationUnitContextType))
+ return;
+
+ Point selection= viewer.getSelectedRange();
+
+ // remember selected text
+ String selectedText= null;
+ if (selection.y != 0) {
+ try {
+ selectedText= document.get(selection.x, selection.y);
+ } catch (BadLocationException e) {}
+ }
+
+
+ CompilationUnitContext context= ((CompilationUnitContextType) fContextType).createContext(document, completionPosition, selection.y, compilationUnit);
+ context.setVariable("selection", selectedText); //$NON-NLS-1$
+ int start= context.getStart();
+ int end= context.getEnd();
+ IRegion region= new Region(start, end - start);
+
+ Template[] templates= PHPeclipsePlugin.getDefault().getTemplateStore().getTemplates();
+
+ if (selection.y == 0) {
+ for (int i= 0; i != templates.length; i++)
+ if (context.canEvaluate(templates[i]))
+ fProposals.add(new TemplateProposal(templates[i], context, region, PHPUiImages.get(PHPUiImages.IMG_OBJS_TEMPLATE)));
+
+ } else {
+
+ if (context.getKey().length() == 0)
+ context.setForceEvaluation(true);
+
+ boolean multipleLinesSelected= areMultipleLinesSelected(viewer);
+
+ for (int i= 0; i != templates.length; i++) {
+ Template template= templates[i];
+ if (context.canEvaluate(template) &&
+ template.getContextTypeId().equals(context.getContextType().getId()) &&
+ (!multipleLinesSelected && template.getPattern().indexOf($_WORD_SELECTION) != -1 || (multipleLinesSelected && template.getPattern().indexOf($_LINE_SELECTION) != -1)))
+ {
+ fProposals.add(new TemplateProposal(templates[i], context, region, PHPUiImages.get(PHPUiImages.IMG_OBJS_TEMPLATE)));
+ }
+ }
+ }
+ }
+
+ /**
+ * Returns <code>true</code> if one line is completely selected or if multiple lines are selected.
+ * Being completely selected means that all characters except the new line characters are
+ * selected.
+ *
+ * @return <code>true</code> if one or multiple lines are selected
+ * @since 2.1
+ */
+ private boolean areMultipleLinesSelected(ITextViewer viewer) {
+ if (viewer == null)
+ return false;
+
+ Point s= viewer.getSelectedRange();
+ if (s.y == 0)
+ return false;
+
+ try {
+
+ IDocument document= viewer.getDocument();
+ int startLine= document.getLineOfOffset(s.x);
+ int endLine= document.getLineOfOffset(s.x + s.y);
+ IRegion line= document.getLineInformation(startLine);
+ return startLine != endLine || (s.x == line.getOffset() && s.y == line.getLength());
+
+ } catch (BadLocationException x) {
+ return false;
+ }
+ }
+}
git://git.phpeclipse.com / phpeclipse.git / blobdiff