| 1 | package de.uka.ipd.sdq.sensorframework.dialogs.dataset; |
| 2 | |
| 3 | |
| 4 | import java.net.URI; |
| 5 | |
| 6 | import org.eclipse.core.filesystem.EFS; |
| 7 | import org.eclipse.core.filesystem.IFileInfo; |
| 8 | import org.eclipse.core.filesystem.IFileStore; |
| 9 | import org.eclipse.core.filesystem.URIUtil; |
| 10 | import org.eclipse.core.resources.IResource; |
| 11 | import org.eclipse.core.resources.ResourcesPlugin; |
| 12 | import org.eclipse.core.runtime.CoreException; |
| 13 | import org.eclipse.core.runtime.IPath; |
| 14 | import org.eclipse.core.runtime.Path; |
| 15 | import org.eclipse.core.runtime.Preferences; |
| 16 | import org.eclipse.jface.viewers.DoubleClickEvent; |
| 17 | import org.eclipse.jface.viewers.IDoubleClickListener; |
| 18 | import org.eclipse.jface.viewers.ISelection; |
| 19 | import org.eclipse.jface.viewers.ISelectionChangedListener; |
| 20 | import org.eclipse.jface.viewers.IStructuredSelection; |
| 21 | import org.eclipse.jface.viewers.SelectionChangedEvent; |
| 22 | import org.eclipse.jface.viewers.TreeViewer; |
| 23 | import org.eclipse.jface.viewers.ViewerComparator; |
| 24 | import org.eclipse.jface.wizard.WizardPage; |
| 25 | import org.eclipse.swt.SWT; |
| 26 | import org.eclipse.swt.events.SelectionAdapter; |
| 27 | import org.eclipse.swt.events.SelectionEvent; |
| 28 | import org.eclipse.swt.graphics.Point; |
| 29 | import org.eclipse.swt.layout.GridData; |
| 30 | import org.eclipse.swt.layout.GridLayout; |
| 31 | import org.eclipse.swt.widgets.Button; |
| 32 | import org.eclipse.swt.widgets.Composite; |
| 33 | import org.eclipse.swt.widgets.Event; |
| 34 | import org.eclipse.swt.widgets.Label; |
| 35 | import org.eclipse.swt.widgets.Listener; |
| 36 | import org.eclipse.swt.widgets.Shell; |
| 37 | import org.eclipse.swt.widgets.Text; |
| 38 | import org.eclipse.ui.internal.ide.IDEWorkbenchMessages; |
| 39 | import org.eclipse.ui.internal.ide.dialogs.CreateLinkedResourceGroup; |
| 40 | import org.eclipse.ui.model.WorkbenchContentProvider; |
| 41 | import org.eclipse.ui.model.WorkbenchLabelProvider; |
| 42 | import org.eclipse.ui.part.DrillDownComposite; |
| 43 | |
| 44 | /** |
| 45 | * Load the existing data source wizard page. If the initial resource selection |
| 46 | * contains exactly one file or directory resource then it will be used as the |
| 47 | * default data source. |
| 48 | * |
| 49 | * @param pageName |
| 50 | * the name of the page |
| 51 | * @param type |
| 52 | * specifies the type of resource to link to. IResource.FILE or |
| 53 | * IResource.FOLDER |
| 54 | * |
| 55 | * @author Roman Andrej |
| 56 | */ |
| 57 | public class WizardDatasourceLoadPage extends WizardPage implements Listener { |
| 58 | |
| 59 | /** string constants */ |
| 60 | private static final String WIZARD_TITEL_FOLDER = "Choose the data directory"; |
| 61 | private static final String WIZARD_MSG_FOLDER = "Choose the folder resource."; |
| 62 | private static final String WIZARD_TITEL_FILE = "Choose the data file"; |
| 63 | private static final String WIZARD_MSG_FILE = "Choose the file resource."; |
| 64 | |
| 65 | private static final int SIZING_CONTAINER_GROUP_HEIGHT = 300; |
| 66 | private static final int SIZING_CONTAINER_GROUP_WIDTH = 250; |
| 67 | |
| 68 | private int type; |
| 69 | |
| 70 | private Button advancedButton; |
| 71 | |
| 72 | private CreateLinkedResourceGroup linkedResourceGroup; |
| 73 | |
| 74 | private Composite linkedResourceParent; |
| 75 | |
| 76 | private Composite linkedResourceComposite; |
| 77 | |
| 78 | |
| 79 | /** |
| 80 | * Creates a wizard of load data source |
| 81 | */ |
| 82 | protected WizardDatasourceLoadPage(String pageName, int type) { |
| 83 | super(pageName); |
| 84 | this.type = type; |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * Height of the "advanced" linked resource group. Set when the advanced |
| 89 | * group is first made visible. |
| 90 | */ |
| 91 | private int linkedResourceGroupHeight = -1; |
| 92 | |
| 93 | // handle on parts |
| 94 | private Text containerNameField; |
| 95 | |
| 96 | // Last selection made by user |
| 97 | //private String selectedResourcePath = ""; |
| 98 | |
| 99 | // Last selection made by user |
| 100 | private IResource selectedResource; |
| 101 | |
| 102 | private IFileStore fileStore = null; |
| 103 | |
| 104 | private TreeViewer treeViewer; |
| 105 | |
| 106 | /* (non-Javadoc) |
| 107 | * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite) |
| 108 | */ |
| 109 | public void createControl(Composite parent) { |
| 110 | initializeDialogUnits(parent); |
| 111 | // top level group |
| 112 | Composite composite = new Composite(parent, SWT.NONE); |
| 113 | composite.setFont(parent.getFont()); |
| 114 | composite.setLayout(new GridLayout()); |
| 115 | composite.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_FILL |
| 116 | | GridData.HORIZONTAL_ALIGN_FILL)); |
| 117 | |
| 118 | Label label = new Label(composite, SWT.WRAP); |
| 119 | label.setText("Enter or select the " + getResourceType() + ":"); |
| 120 | label.setFont(this.getFont()); |
| 121 | |
| 122 | containerNameField = new Text(composite, SWT.SINGLE | SWT.BORDER); |
| 123 | containerNameField |
| 124 | .setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| 125 | //containerNameField.addListener(SWT.Modify, this); |
| 126 | containerNameField.setFont(this.getFont()); |
| 127 | |
| 128 | createTreeViewer(composite); |
| 129 | createAdvancedControls(composite); |
| 130 | // Show description on opening |
| 131 | setErrorMessage(null); |
| 132 | setDialogStrings(); |
| 133 | setControl(composite); |
| 134 | |
| 135 | this.setPageComplete(false); |
| 136 | } |
| 137 | |
| 138 | |
| 139 | /** The method set a wizard title and message */ |
| 140 | private void setDialogStrings() { |
| 141 | setMessage(null); |
| 142 | if (type == IResource.FILE) { |
| 143 | setMessage(WIZARD_MSG_FILE); |
| 144 | setTitle(WIZARD_TITEL_FILE); |
| 145 | } |
| 146 | |
| 147 | if (type == IResource.FOLDER) { |
| 148 | setMessage(WIZARD_MSG_FOLDER); |
| 149 | setTitle(WIZARD_TITEL_FOLDER); |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Creates the widget for advanced options. |
| 155 | * |
| 156 | * @param parent |
| 157 | * the parent composite |
| 158 | */ |
| 159 | protected void createAdvancedControls(Composite parent) { |
| 160 | Preferences preferences = ResourcesPlugin.getPlugin() |
| 161 | .getPluginPreferences(); |
| 162 | |
| 163 | if (preferences.getBoolean(ResourcesPlugin.PREF_DISABLE_LINKING) == false) { |
| 164 | linkedResourceParent = new Composite(parent, SWT.NONE); |
| 165 | linkedResourceParent.setFont(parent.getFont()); |
| 166 | linkedResourceParent.setLayoutData(new GridData( |
| 167 | GridData.FILL_HORIZONTAL)); |
| 168 | GridLayout layout = new GridLayout(); |
| 169 | layout.marginHeight = 0; |
| 170 | layout.marginWidth = 0; |
| 171 | linkedResourceParent.setLayout(layout); |
| 172 | |
| 173 | advancedButton = new Button(linkedResourceParent, SWT.PUSH); |
| 174 | advancedButton.setFont(linkedResourceParent.getFont()); |
| 175 | |
| 176 | advancedButton.setText(IDEWorkbenchMessages.showAdvanced); |
| 177 | GridData data = setButtonLayoutData(advancedButton); |
| 178 | data.horizontalAlignment = GridData.BEGINNING; |
| 179 | advancedButton.setLayoutData(data); |
| 180 | advancedButton.addSelectionListener(new SelectionAdapter() { |
| 181 | public void widgetSelected(SelectionEvent e) { |
| 182 | handleAdvancedButtonSelect(); |
| 183 | } |
| 184 | }); |
| 185 | } |
| 186 | |
| 187 | linkedResourceGroup = new CreateLinkedResourceGroup(type, |
| 188 | this, new CreateLinkedResourceGroup.IStringValue() { |
| 189 | |
| 190 | public String getValue() { |
| 191 | return containerNameField.getText(); |
| 192 | } |
| 193 | |
| 194 | public void setValue(String string) { |
| 195 | containerNameField.setText(string); |
| 196 | } |
| 197 | |
| 198 | @Override |
| 199 | public IResource getResource() { |
| 200 | // TODO Auto-generated method stub |
| 201 | return null; |
| 202 | } |
| 203 | }); |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Returns a new drill down viewer for this dialog. |
| 208 | * |
| 209 | * @param heightHint |
| 210 | * height hint for the drill down composite |
| 211 | */ |
| 212 | protected void createTreeViewer(Composite parent) { |
| 213 | // Create drill down. |
| 214 | DrillDownComposite drillDown = new DrillDownComposite(parent, |
| 215 | SWT.BORDER); |
| 216 | GridData spec = new GridData(SWT.FILL, SWT.FILL, true, true); |
| 217 | spec.heightHint = SIZING_CONTAINER_GROUP_HEIGHT; |
| 218 | spec.widthHint = SIZING_CONTAINER_GROUP_WIDTH; |
| 219 | drillDown.setLayoutData(spec); |
| 220 | |
| 221 | // Create tree viewer inside drill down. |
| 222 | treeViewer = new TreeViewer(drillDown, SWT.NONE); |
| 223 | drillDown.setChildTree(treeViewer); |
| 224 | treeViewer.setContentProvider(new WorkbenchContentProvider()); |
| 225 | treeViewer.setLabelProvider(WorkbenchLabelProvider |
| 226 | .getDecoratingWorkbenchLabelProvider()); |
| 227 | treeViewer.setComparator(new ViewerComparator()); |
| 228 | treeViewer.setUseHashlookup(true); |
| 229 | treeViewer.addSelectionChangedListener(new ISelectionChangedListener() { |
| 230 | public void selectionChanged(SelectionChangedEvent event) { |
| 231 | IStructuredSelection selection = (IStructuredSelection) event |
| 232 | .getSelection(); |
| 233 | Object object = selection.getFirstElement(); |
| 234 | |
| 235 | if (object instanceof IResource) { |
| 236 | selectedResource = (IResource) object; |
| 237 | setPageComplete(validitaResource(selectedResource)); |
| 238 | } |
| 239 | } |
| 240 | }); |
| 241 | treeViewer.addDoubleClickListener(new IDoubleClickListener() { |
| 242 | public void doubleClick(DoubleClickEvent event) { |
| 243 | ISelection selection = event.getSelection(); |
| 244 | if (selection instanceof IStructuredSelection) { |
| 245 | Object item = ((IStructuredSelection) selection) |
| 246 | .getFirstElement(); |
| 247 | if (item == null) { |
| 248 | return; |
| 249 | } |
| 250 | if (treeViewer.getExpandedState(item)) { |
| 251 | treeViewer.collapseToLevel(item, 1); |
| 252 | } else { |
| 253 | treeViewer.expandToLevel(item, 1); |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | }); |
| 258 | |
| 259 | // This has to be done after the viewer has been laid out |
| 260 | treeViewer.setInput(ResourcesPlugin.getWorkspace()); |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * The container selection has changed in the tree view. Update the |
| 265 | * container name field value and notify all listeners. |
| 266 | * |
| 267 | * @param text |
| 268 | * The container that changed |
| 269 | */ |
| 270 | public void containerSelectionChanged(String text) { |
| 271 | |
| 272 | if (text.startsWith("/")) { |
| 273 | text = text.replaceFirst("/", ""); |
| 274 | } |
| 275 | |
| 276 | containerNameField.setText(text); |
| 277 | containerNameField.setToolTipText(text); |
| 278 | } |
| 279 | |
| 280 | /** |
| 281 | * Validate in LinkedResourceGroup selected file |
| 282 | */ |
| 283 | private boolean validitaLinkedResource() { |
| 284 | if ((linkedResourceGroup != null) |
| 285 | && (linkedResourceGroup.getLinkTargetURI() != null)) { |
| 286 | URI uri = linkedResourceGroup.getLinkTargetURI(); |
| 287 | |
| 288 | /** |
| 289 | * This variable represents a value. That is back supplied, if |
| 290 | * linkedResourceGroup.getLinkTargetURI() is empty. |
| 291 | */ |
| 292 | URI defaultURI = URIUtil.toURI(""); |
| 293 | |
| 294 | if (!uri.toString().equals(defaultURI.toString())) { |
| 295 | |
| 296 | try { |
| 297 | fileStore = EFS.getStore(uri); |
| 298 | } catch (CoreException e) { |
| 299 | return false; |
| 300 | } |
| 301 | return true; |
| 302 | } |
| 303 | } |
| 304 | return false; |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Validate in viewer selected resource |
| 309 | * |
| 310 | * @param resource - |
| 311 | * viewer selection |
| 312 | */ |
| 313 | private boolean validitaResource(IResource resource) { |
| 314 | |
| 315 | if (resource == null) { |
| 316 | return false; |
| 317 | } |
| 318 | |
| 319 | IFileInfo fileInfo = null; |
| 320 | |
| 321 | try { |
| 322 | fileStore = EFS.getStore(resource.getLocationURI()); |
| 323 | } catch (CoreException e1) { |
| 324 | return false; |
| 325 | } |
| 326 | |
| 327 | fileInfo = fileStore.fetchInfo(); |
| 328 | |
| 329 | if (type == IResource.FILE) { |
| 330 | return !fileInfo.isDirectory(); |
| 331 | } |
| 332 | |
| 333 | if (type == IResource.FOLDER) { |
| 334 | return fileInfo.isDirectory(); |
| 335 | } |
| 336 | |
| 337 | return false; |
| 338 | } |
| 339 | |
| 340 | /** |
| 341 | * Shows/hides the advanced option widgets. |
| 342 | */ |
| 343 | protected void handleAdvancedButtonSelect() { |
| 344 | Shell shell = getShell(); |
| 345 | Point shellSize = shell.getSize(); |
| 346 | Composite composite = (Composite) getControl(); |
| 347 | |
| 348 | if (linkedResourceComposite != null) { |
| 349 | linkedResourceComposite.dispose(); |
| 350 | linkedResourceComposite = null; |
| 351 | composite.layout(); |
| 352 | shell.setSize(shellSize.x, shellSize.y - linkedResourceGroupHeight); |
| 353 | advancedButton.setText(IDEWorkbenchMessages.showAdvanced); |
| 354 | } else { |
| 355 | linkedResourceComposite = linkedResourceGroup |
| 356 | .createContents(linkedResourceParent); |
| 357 | if (linkedResourceGroupHeight == -1) { |
| 358 | Point groupSize = linkedResourceComposite.computeSize( |
| 359 | SWT.DEFAULT, SWT.DEFAULT, true); |
| 360 | linkedResourceGroupHeight = groupSize.y; |
| 361 | } |
| 362 | shell.setSize(shellSize.x, shellSize.y + linkedResourceGroupHeight); |
| 363 | composite.layout(); |
| 364 | advancedButton.setText(IDEWorkbenchMessages.hideAdvanced); |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * Returns the currently selected file name. Null if the field is empty. |
| 370 | * |
| 371 | * @return IPath |
| 372 | */ |
| 373 | public IPath getFileFullPath() { |
| 374 | if (fileStore == null) { |
| 375 | return null; |
| 376 | } |
| 377 | |
| 378 | IPath path = new Path(fileStore.toString()); |
| 379 | // The user may not have made this absolute so do it for them |
| 380 | path.makeAbsolute(); |
| 381 | |
| 382 | // TODO: StB: Commented out as this is not working under linux and I have doubts that it works correctly under windows!! |
| 383 | if (false && path.getDevice() == null) { |
| 384 | IPath rootPath = ResourcesPlugin.getWorkspace().getRoot() |
| 385 | .getLocation(); |
| 386 | return rootPath.append(path); |
| 387 | } |
| 388 | |
| 389 | return path; |
| 390 | } |
| 391 | |
| 392 | /** |
| 393 | * The WizardDatasourceFileLoadPage implementation of this Listener method |
| 394 | * handles all events and enablements for controls on this page. Subclasses |
| 395 | * may extend. |
| 396 | */ |
| 397 | public void handleEvent(Event event) { |
| 398 | if (linkedResourceComposite != null |
| 399 | && !linkedResourceComposite.isDisposed()) { |
| 400 | setPageComplete(validitaLinkedResource()); |
| 401 | }else { |
| 402 | setPageComplete(validitaResource(selectedResource)); |
| 403 | } |
| 404 | } |
| 405 | |
| 406 | private String getResourceType(){ |
| 407 | if (type == IResource.FILE ) |
| 408 | return "file"; |
| 409 | if (type == IResource.FOLDER ) |
| 410 | return "folder"; |
| 411 | return "<undefined>"; |
| 412 | } |
| 413 | |
| 414 | /* (non-Javadoc) |
| 415 | * @see org.eclipse.jface.wizard.WizardPage#setPageComplete(boolean) |
| 416 | */ |
| 417 | @Override |
| 418 | public void setPageComplete(boolean complete) { |
| 419 | super.setPageComplete(complete); |
| 420 | setErrorMessage("No resource selected!"); |
| 421 | |
| 422 | if (complete) { |
| 423 | setErrorMessage(null); |
| 424 | containerSelectionChanged(fileStore.toString()); |
| 425 | } |
| 426 | } |
| 427 | } |