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

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/TemplateEngine.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/TemplateEngine.java
new file mode 100644
index 0000000..7d6d35d
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/internal/ui/text/template/contentassist/TemplateEngine.java
@@ -0,0 +1,169 @@
+/*******************************************************************************
+ * 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.ui.WebUI;
+//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 = WebUI.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;
+		}
+	}
+}