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1
11 package org.eclipse.jdt.internal.ui.browsing;
12
13 import java.util.Iterator  ;
14
15 import org.eclipse.core.resources.ResourcesPlugin;
16
17 import org.eclipse.swt.SWT;
18 import org.eclipse.swt.widgets.Composite;
19
20 import org.eclipse.jface.viewers.DoubleClickEvent;
21 import org.eclipse.jface.viewers.IContentProvider;
22 import org.eclipse.jface.viewers.IDoubleClickListener;
23 import org.eclipse.jface.viewers.ISelection;
24 import org.eclipse.jface.viewers.IStructuredSelection;
25 import org.eclipse.jface.viewers.StructuredSelection;
26 import org.eclipse.jface.viewers.StructuredViewer;
27 import org.eclipse.jface.viewers.TreeViewer;
28
29 import org.eclipse.ui.IPageLayout;
30 import org.eclipse.ui.IWorkbenchPart;
31 import org.eclipse.ui.part.IShowInTargetList;
32
33 import org.eclipse.jdt.core.IJavaElement;
34 import org.eclipse.jdt.core.IJavaModel;
35 import org.eclipse.jdt.core.IJavaProject;
36 import org.eclipse.jdt.core.IPackageFragmentRoot;
37 import org.eclipse.jdt.core.JavaCore;
38
39 import org.eclipse.jdt.ui.JavaUI;
40 import org.eclipse.jdt.ui.PreferenceConstants;
41 import org.eclipse.jdt.ui.actions.ProjectActionGroup;
42
43 import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
44 import org.eclipse.jdt.internal.ui.JavaPlugin;
45 import org.eclipse.jdt.internal.ui.viewsupport.ColoredViewersManager;
46 import org.eclipse.jdt.internal.ui.viewsupport.FilterUpdater;
47 import org.eclipse.jdt.internal.ui.viewsupport.ProblemTreeViewer;
48
49 public class ProjectsView extends JavaBrowsingPart {
50
51 private FilterUpdater fFilterUpdater;
52
53
56 protected StructuredViewer createViewer(Composite parent) {
57 ProblemTreeViewer result= new ProblemTreeViewer(parent, SWT.MULTI);
58 ColoredViewersManager.install(result);
59 fFilterUpdater= new FilterUpdater(result);
60 ResourcesPlugin.getWorkspace().addResourceChangeListener(fFilterUpdater);
61 return result;
62 }
63
64
67 public void dispose() {
68 if (fFilterUpdater != null)
69 ResourcesPlugin.getWorkspace().removeResourceChangeListener(fFilterUpdater);
70 super.dispose();
71 }
72
73
76 public Object getAdapter(Class key) {
77 if (key == IShowInTargetList.class) {
78 return new IShowInTargetList() {
79 public String [] getShowInTargetIds() {
80 return new String [] { JavaUI.ID_PACKAGES, IPageLayout.ID_RES_NAV };
81 }
82
83 };
84 }
85 return super.getAdapter(key);
86 }
87
88
89
92 protected IContentProvider createContentProvider() {
93 return new ProjectAndSourceFolderContentProvider(this);
94 }
95
96
101 protected String getHelpContextId() {
102 return IJavaHelpContextIds.PROJECTS_VIEW;
103 }
104
105 protected String getLinkToEditorKey() {
106 return PreferenceConstants.LINK_BROWSING_PROJECTS_TO_EDITOR;
107 }
108
109
110
113 protected void hookViewerListeners() {
114 super.hookViewerListeners();
115 getViewer().addDoubleClickListener(new IDoubleClickListener() {
116 public void doubleClick(DoubleClickEvent event) {
117 TreeViewer viewer= (TreeViewer)getViewer();
118 Object element= ((IStructuredSelection)event.getSelection()).getFirstElement();
119 if (viewer.isExpandable(element))
120 viewer.setExpandedState(element, !viewer.getExpandedState(element));
121 }
122 });
123 }
124
125 protected void setInitialInput() {
126 IJavaElement root= JavaCore.create(JavaPlugin.getWorkspace().getRoot());
127 getViewer().setInput(root);
128 updateTitle();
129 }
130
131
138 protected boolean isValidInput(Object element) {
139 return element instanceof IJavaModel;
140 }
141
142
149 protected boolean isValidElement(Object element) {
150 return element instanceof IJavaProject || element instanceof IPackageFragmentRoot;
151 }
152
153
159 protected IJavaElement findElementToSelect(IJavaElement je) {
160 if (je == null)
161 return null;
162
163 switch (je.getElementType()) {
164 case IJavaElement.JAVA_MODEL :
165 return null;
166 case IJavaElement.JAVA_PROJECT:
167 return je;
168 case IJavaElement.PACKAGE_FRAGMENT_ROOT:
169 if (je.getElementName().equals(IPackageFragmentRoot.DEFAULT_PACKAGEROOT_PATH))
170 return je.getParent();
171 else
172 return je;
173 default :
174 return findElementToSelect(je.getParent());
175 }
176 }
177
178
181 protected void setInput(Object input) {
182 if (input != null)
184 super.setInput(input);
185 else
186 getViewer().setSelection(null);
187 }
188
189 protected void createActions() {
190 super.createActions();
191 fActionGroups.addGroup(new ProjectActionGroup(this));
192 }
193
194
200 public void selectionChanged(IWorkbenchPart part, ISelection selection) {
201 if (!needsToProcessSelectionChanged(part, selection))
202 return;
203
204 if (selection instanceof IStructuredSelection) {
205 IStructuredSelection sel= (IStructuredSelection)selection;
206 Iterator iter= sel.iterator();
207 while (iter.hasNext()) {
208 Object selectedElement= iter.next();
209 if (selectedElement instanceof LogicalPackage) {
210 selection= new StructuredSelection(((LogicalPackage)selectedElement).getJavaProject());
211 break;
212 }
213 }
214 }
215 super.selectionChanged(part, selection);
216 }
217 }
218 |
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