Improved PHPCodeReader for "Go to Matching Bracket" Action

[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / PHPTextHover.java

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 884a557..cc93029 100644 (file)
--- a/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java
+++ b/net.sourceforge.phpeclipse/src/net/sourceforge/phpeclipse/phpeditor/PHPTextHover.java
@@ -11,40 +11,72 @@ Contributors:
 **********************************************************************/
 package net.sourceforge.phpeclipse.phpeditor;
 
+import java.util.HashMap;
+import java.util.Vector;
+
+import net.sourceforge.phpeclipse.phpeditor.php.PHPElement;
+import net.sourceforge.phpeclipse.phpeditor.php.PHPWordExtractor;
 
-import org.eclipse.swt.graphics.Point;
-import org.eclipse.jface.text.BadLocationException;
 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 Java code.
+ * Example implementation for an <code>ITextHover</code> 
+ * which hovers over PHP code.
  */
 public class PHPTextHover implements ITextHover {
+  public static HashMap functionDescriptions = null;
+
+  private static PHPWordExtractor phpWordDetector = new PHPWordExtractor();
+  
+  /* (non-Javadoc)
+   * Method declared on ITextHover
+   */
+  public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
+    if (hoverRegion != null) {
+      try {
+        if (hoverRegion.getLength() > -1) {
+          String word = textViewer.getDocument().get(hoverRegion.getOffset(), hoverRegion.getLength());
+          if (functionDescriptions == null) {
+            functionDescriptions = new HashMap();
+            //                 PHPSyntaxRdr syntaxRdr = new PHPSyntaxRdr();
+            //                 syntaxRdr.readInSyntax();
+
+            //                 Vector syntaxbuffer = syntaxRdr.getsyntaxdata();
+            Vector syntaxbuffer = PHPSyntaxRdr.getsyntaxdata();
+            String strbuffer = null;
+            PHPElement elbuffer = null;
+            while ((syntaxbuffer != null)
+              && (!syntaxbuffer.isEmpty() && 
+                 ((elbuffer = (PHPElement) syntaxbuffer.remove(0)) != null))) {
+              functionDescriptions.put(elbuffer.getName(), elbuffer.getHoverText());
+            }
+
+            //            functionDescriptions = new HashMap(997);
+            //            for (int i=0; i<PHPFunctionNames.FUNCTION_NAMES.length;i++) {
+            //              functionDescriptions.put(PHPFunctionNasmes.FUNCTION_NAMES[i],PHPFunctionDescription.FUNCTION_DESCRIPTION[i]);
+            //            }
+          }
+          return (String) functionDescriptions.get(word);
+        }
+        //      } catch (BadLocationException x) {
+      } catch (Exception x) {
+      }
+    }
+    return "empty selection";
+  }
 
-       /* (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) {
-                       }
-               }
-               return "empty selection";
-       }
-       
-       /* (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)
-                       return new Region(selection.x, selection.y);
-               return new Region(offset, 0);
-       }
+  /* (non-Javadoc)
+   * Method declared on ITextHover
+   */
+  public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
+    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);
+  }
 }