archive/net.sourceforge.phpeclipse.js.ui/src/net/sourceforge/phpeclipse/js/ui/views/JSClassesViewContentProvider.java

   1 /*
   2  * Copyright (c) 2003-2004 Alex Fitzpatrick and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     Alex Fitzpatrick - initial implementation
  10  *
  11  * $Id: JSClassesViewContentProvider.java,v 1.1 2004-09-02 18:23:49 jsurfer Exp $
  12  */
  13
  14 package net.sourceforge.phpeclipse.js.ui.views;
  15
  16 import net.sourceforge.phpeclipse.js.core.model.JSElement;
  17 import net.sourceforge.phpeclipse.js.core.parser.JSSyntaxModelFactory;
  18
  19 import org.eclipse.core.resources.IProject;
  20 import org.eclipse.core.resources.IWorkspace;
  21 import org.eclipse.core.resources.ResourcesPlugin;
  22 import org.eclipse.jface.viewers.IStructuredContentProvider;
  23 import org.eclipse.jface.viewers.ITreeContentProvider;
  24 import org.eclipse.jface.viewers.Viewer;
  25
  26 /**
  27  * Content provider for the JavaScript classes view.
  28  */
  29 class JSClassesViewContentProvider
  30         implements IStructuredContentProvider, ITreeContentProvider {
  31         private IWorkspace invisibleRoot;
  32
  33         /*
  34          * (non-Javadoc)
  35          *
  36          * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
  37          *      java.lang.Object, java.lang.Object)
  38          */
  39         public void inputChanged(Viewer v, Object oldInput, Object newInput) {
  40         }
  41         /*
  42          * (non-Javadoc)
  43          *
  44          * @see org.eclipse.jface.viewers.IContentProvider#dispose()
  45          */
  46         public void dispose() {
  47         }
  48         /*
  49          * (non-Javadoc)
  50          *
  51          * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
  52          */
  53         public Object[] getElements(Object parent) {
  54                 if (parent.equals(ResourcesPlugin.getWorkspace())) {
  55                         if (invisibleRoot == null)
  56                                 invisibleRoot = ((IWorkspace) parent);
  57                         return getChildren(invisibleRoot);
  58                 }
  59                 return getChildren(parent);
  60         }
  61         /*
  62          * (non-Javadoc)
  63          *
  64          * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
  65          */
  66         public Object getParent(Object child) {
  67                 if (child instanceof IProject) {
  68                         return ((IProject) child).getWorkspace();
  69                 }
  70
  71                 if (child instanceof JSElement) {
  72                         return ((JSElement) child).getParent(child);
  73                 }
  74                 return null;
  75         }
  76         /*
  77          * (non-Javadoc)
  78          *
  79          * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
  80          */
  81         public Object[] getChildren(Object parent) {
  82
  83                 if (parent instanceof IWorkspace) {
  84                         return invisibleRoot.getRoot().getProjects();
  85                 }
  86
  87                 if (parent instanceof IProject) {
  88                         return getClasses((IProject) parent);
  89                 }
  90
  91                 if (parent instanceof JSElement) {
  92                         return ((JSElement) parent).getChildren(parent);
  93                 }
  94
  95                 return new Object[0];
  96         }
  97         /**
  98          * @param project
  99          * @return
 100          */
 101         private Object[] getClasses(IProject project) {
 102                 return JSSyntaxModelFactory
 103                         .getInstance()
 104                         .getContentOutline(project)
 105                         .getChildren();
 106         }
 107
 108         /*
 109          * (non-Javadoc)
 110          *
 111          * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
 112          */
 113         public boolean hasChildren(Object parent) {
 114                 return getChildren(parent).length > 0;
 115         }
 116 }