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

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java
index 3f8e79a..08c077e 100644
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java
@@ -1,50 +1,150 @@
 /**********************************************************************
-Copyright (c) 2000, 2002 IBM Corp. 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 implementation
-    Klaus Hartlage - www.eclipseproject.de
-**********************************************************************/
+ Copyright (c) 2000, 2002 IBM Corp. 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 implementation
+ www.phpeclipse.de
+ **********************************************************************/
 package net.sourceforge.phpeclipse.phpeditor;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.jface.text.BadLocationException;
+import net.sourceforge.phpdt.internal.corext.phpdoc.PHPDocUtil;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
+import net.sourceforge.phpeclipse.builder.PHPIdentifierLocation;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPElement;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPFunction;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPWordExtractor;
+
+import org.eclipse.core.resources.IProject;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.ITextHover;
 import org.eclipse.jface.text.ITextViewer;
 import org.eclipse.jface.text.Region;
+import org.eclipse.swt.graphics.Point;
 
 /**
- * Example implementation for an <code>ITextHover</code> 
- * which hovers over PHP code.
+ * Implementation for an <code>ITextHover</code> which hovers over PHP code.
  */
 public class PHPTextHover implements ITextHover {
+	private static HashMap functionDescriptions = null;
+
+	private static HashMap identDescriptions = null;
 
-	/* (non-Javadoc)
-	 * Method declared on ITextHover
+	/**
+	 * The current project; maybe <code>null</code> for preference pages
+	 */
+	private IProject fProject;
+
+	public PHPTextHover(IProject project) {
+		fProject = project;
+	}
+
+	/*
+	 * (non-Javadoc) Method declared on ITextHover
 	 */
 	public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
 		if (hoverRegion != null) {
 			try {
-				if (hoverRegion.getLength() > -1)
-					return textViewer.getDocument().get(hoverRegion.getOffset(), hoverRegion.getLength());
-			} catch (BadLocationException x) {
+				if (hoverRegion.getLength() > -1) {
+					String word = textViewer.getDocument().get(
+							hoverRegion.getOffset(), hoverRegion.getLength());
+					if (functionDescriptions == null) {
+						functionDescriptions = new HashMap();
+						identDescriptions = new HashMap();
+						ArrayList syntaxbuffer = PHPSyntaxRdr.getSyntaxData();
+						PHPElement elbuffer = null;
+						if (syntaxbuffer != null) {
+							for (int i = 0; i < syntaxbuffer.size(); i++) {
+								elbuffer = (PHPElement) syntaxbuffer.get(i);
+								if (elbuffer instanceof PHPFunction) {
+									functionDescriptions.put(
+											elbuffer.getName(), elbuffer
+													.getHoverText());
+								} else {
+									identDescriptions.put(elbuffer.getName(),
+											elbuffer.getHoverText());
+								}
+							}
+						}
+						//
+						// while ((syntaxbuffer != null)
+						// && (!syntaxbuffer.isEmpty() && ((elbuffer =
+						// (PHPElement)
+						// syntaxbuffer.remove(0)) != null))) {
+						// functionDescriptions.put(elbuffer.getName(),
+						// elbuffer.getHoverText());
+						// }
+					}
+					String hoverInfo = (String) identDescriptions.get(word);
+					if (hoverInfo == null & word.length() > 0) {
+						hoverInfo = (String) functionDescriptions.get(word
+								.toLowerCase());
+					}
+					if (hoverInfo == null && fProject != null) {
+						// get the possible PHPDoc information from the index
+						// file
+						IdentifierIndexManager indexManager = PHPeclipsePlugin
+								.getDefault().getIndexManager(fProject);
+						List list = indexManager.getLocations(word);
+						if (list.size() > 0) {
+							try {
+								PHPIdentifierLocation location;
+								String filename;
+								StringBuffer hoverInfoBuffer = new StringBuffer();
+								String workspaceLocation;
+								if (fProject != null) {
+									workspaceLocation = fProject.getLocation()
+											.toString() + '/';
+								} else {
+									// should never happen?
+									workspaceLocation = PHPeclipsePlugin
+											.getWorkspace().getRoot()
+											.getLocation().toString();
+								}
+								// boolean foundPHPdoc = false;
+								for (int i = 0; i < list.size(); i++) {
+									location = (PHPIdentifierLocation) list
+											.get(i);
+									filename = workspaceLocation
+											+ location.getFilename();
+									PHPDocUtil.appendPHPDoc(hoverInfoBuffer,
+											filename, location);
+								}
+								hoverInfo = hoverInfoBuffer.toString();
+							} catch (Throwable e) {
+								// ignore exceptions
+								// e.printStackTrace();
+							}
+						}
+					}
+					return hoverInfo;
+				}
+				// } catch (BadLocationException x) {
+			} catch (Exception x) {
 			}
 		}
-		return "empty selection";
+		return null;
+		// don't show this annoying text
+		// return "empty selection";
 	}
-	
-	/* (non-Javadoc)
-	 * Method declared on ITextHover
+
+	/*
+	 * (non-Javadoc) Method declared on ITextHover
 	 */
 	public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
-		Point selection= textViewer.getSelectedRange();
-		if (selection.x <= offset && offset < selection.x + selection.y)
+		Point selection = PHPWordExtractor.findWord(textViewer.getDocument(),
+				offset);
+		// show the extracted word as a tooltip
+		if (selection != null && selection.x <= offset
+				&& offset < selection.x + selection.y)
 			return new Region(selection.x, selection.y);
 		return new Region(offset, 0);
 	}