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1
11 package org.eclipse.ui.internal.ide.dialogs;
12
13 import org.eclipse.core.filesystem.IFileStore;
14 import org.eclipse.core.resources.IResource;
15 import org.eclipse.core.runtime.IStatus;
16 import org.eclipse.core.runtime.NullProgressMonitor;
17 import org.eclipse.core.runtime.Status;
18 import org.eclipse.jface.viewers.ITreeContentProvider;
19 import org.eclipse.jface.viewers.LabelProvider;
20 import org.eclipse.jface.viewers.Viewer;
21 import org.eclipse.jface.viewers.ViewerComparator;
22 import org.eclipse.swt.graphics.Image;
23 import org.eclipse.swt.widgets.Shell;
24 import org.eclipse.ui.ISharedImages;
25 import org.eclipse.ui.PlatformUI;
26 import org.eclipse.ui.dialogs.ElementTreeSelectionDialog;
27 import org.eclipse.ui.dialogs.ISelectionStatusValidator;
28 import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
29
30
36 public class FileFolderSelectionDialog extends ElementTreeSelectionDialog {
37
38
41 private static class FileLabelProvider extends LabelProvider {
42 private static final Image IMG_FOLDER = PlatformUI.getWorkbench()
43 .getSharedImages().getImage(ISharedImages.IMG_OBJ_FOLDER);
44
45 private static final Image IMG_FILE = PlatformUI.getWorkbench()
46 .getSharedImages().getImage(ISharedImages.IMG_OBJ_FILE);
47
48
53 public Image getImage(Object  element) {
54 if (element instanceof IFileStore) {
55 IFileStore curr = (IFileStore) element;
56 if (curr.fetchInfo().isDirectory()) {
57 return IMG_FOLDER;
58 }
59 return IMG_FILE;
60 }
61 return null;
62 }
63
64
69 public String getText(Object element) {
70 if (element instanceof IFileStore) {
71 return ((IFileStore) element).getName();
72 }
73 return super.getText(element);
74 }
75 }
76
77
80 private static class FileContentProvider implements ITreeContentProvider {
81 private static final Object [] EMPTY = new Object [0];
82
83 private IFileStoreFilter fileFilter;
84
85
92 public FileContentProvider(final boolean showFiles) {
93 fileFilter = new IFileStoreFilter() {
94
95
100 public boolean accept(IFileStore file) {
101 if (!file.fetchInfo().isDirectory() && showFiles == false) {
102 return false;
103 }
104 return true;
105 }
106 };
107 }
108
109 public Object [] getChildren(Object parentElement) {
110 if (parentElement instanceof IFileStore) {
111 IFileStore[] children = IDEResourceInfoUtils.listFileStores(
112 (IFileStore) parentElement, fileFilter,
113 new NullProgressMonitor());
114 if (children != null) {
115 return children;
116 }
117 }
118 return EMPTY;
119 }
120
121
126 public Object getParent(Object element) {
127 if (element instanceof IFileStore) {
128 return ((IFileStore) element).getParent();
129 }
130 return null;
131 }
132
133 public boolean hasChildren(Object element) {
134 return getChildren(element).length > 0;
135 }
136
137 public Object [] getElements(Object element) {
138 return getChildren(element);
139 }
140
141 public void dispose() {
142 }
143
144 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
145 }
146 }
147
148
151 private static class FileViewerSorter extends ViewerComparator {
152
157 public int category(Object element) {
158 if (element instanceof IFileStore
159 && !((IFileStore) element).fetchInfo().isDirectory()) {
160 return 1;
161 }
162 return 0;
163 }
164 }
165
166
169 private static class FileSelectionValidator implements
170 ISelectionStatusValidator {
171 private boolean multiSelect;
172
173 private boolean acceptFolders;
174
175
185 public FileSelectionValidator(boolean multiSelect, boolean acceptFolders) {
186 this.multiSelect = multiSelect;
187 this.acceptFolders = acceptFolders;
188 }
189
190
195 public IStatus validate(Object [] selection) {
196 int nSelected = selection.length;
197 String pluginId = IDEWorkbenchPlugin.IDE_WORKBENCH;
198
199 if (nSelected == 0 || (nSelected > 1 && multiSelect == false)) {
200 return new Status(IStatus.ERROR, pluginId, IStatus.ERROR,
201 IDEResourceInfoUtils.EMPTY_STRING, null);
202 }
203 for (int i = 0; i < selection.length; i++) {
204 Object curr = selection[i];
205 if (curr instanceof IFileStore) {
206 IFileStore file = (IFileStore) curr;
207 if (acceptFolders == false
208 && file.fetchInfo().isDirectory()) {
209 return new Status(IStatus.ERROR, pluginId,
210 IStatus.ERROR,
211 IDEResourceInfoUtils.EMPTY_STRING, null);
212 }
213
214 }
215 }
216 return Status.OK_STATUS;
217 }
218 }
219
220
235 public FileFolderSelectionDialog(Shell parent, boolean multiSelect, int type) {
236 super(parent, new FileLabelProvider(), new FileContentProvider(
237 (type & IResource.FILE) != 0));
238 setComparator(new FileViewerSorter());
239 setValidator(new FileSelectionValidator(multiSelect,
240 (type & IResource.FOLDER) != 0));
241 }
242 }
243 |
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