org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/components/RepositorySelectionPage.java

   1 /*******************************************************************************
   2  * Copyright (C) 2007, 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
   3  * Copyright (C) 2008, Roger C. Soares <rogersoares@intelinet.com.br>
   4  * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
   5  * Copyright (C) 2008, Marek Zawirski <marek.zawirski@gmail.com>
   6  *
   7  * All rights reserved. This program and the accompanying materials
   8  * are made available under the terms of the Eclipse Public License v1.0
   9  * which accompanies this distribution, and is available at
  10  * http://www.eclipse.org/legal/epl-v10.html
  11  *******************************************************************************/
  12 package org.eclipse.egit.ui.internal.components;
  13
  14 import java.io.File;
  15 import java.net.URI;
  16 import java.net.URISyntaxException;
  17 import java.util.ArrayList;
  18 import java.util.List;
  19 import java.util.StringTokenizer;
  20 import java.util.regex.Pattern;
  21 import java.util.regex.PatternSyntaxException;
  22
  23 import org.eclipse.core.runtime.preferences.IEclipsePreferences;
  24 import org.eclipse.core.runtime.preferences.InstanceScope;
  25 import org.eclipse.egit.ui.Activator;
  26 import org.eclipse.egit.ui.UIText;
  27 import org.eclipse.egit.ui.UIUtils;
  28 import org.eclipse.jface.fieldassist.ContentProposalAdapter;
  29 import org.eclipse.jface.fieldassist.IContentProposal;
  30 import org.eclipse.jface.fieldassist.IContentProposalProvider;
  31 import org.eclipse.jface.fieldassist.TextContentAdapter;
  32 import org.eclipse.jface.layout.GridDataFactory;
  33 import org.eclipse.jgit.lib.Constants;
  34 import org.eclipse.jgit.transport.RemoteConfig;
  35 import org.eclipse.jgit.transport.URIish;
  36 import org.eclipse.jgit.util.FS;
  37 import org.eclipse.osgi.util.NLS;
  38 import org.eclipse.swt.SWT;
  39 import org.eclipse.swt.events.ModifyEvent;
  40 import org.eclipse.swt.events.ModifyListener;
  41 import org.eclipse.swt.events.SelectionAdapter;
  42 import org.eclipse.swt.events.SelectionEvent;
  43 import org.eclipse.swt.events.VerifyEvent;
  44 import org.eclipse.swt.events.VerifyListener;
  45 import org.eclipse.swt.layout.GridData;
  46 import org.eclipse.swt.layout.GridLayout;
  47 import org.eclipse.swt.widgets.Button;
  48 import org.eclipse.swt.widgets.Combo;
  49 import org.eclipse.swt.widgets.Composite;
  50 import org.eclipse.swt.widgets.Control;
  51 import org.eclipse.swt.widgets.DirectoryDialog;
  52 import org.eclipse.swt.widgets.Group;
  53 import org.eclipse.swt.widgets.Label;
  54 import org.eclipse.swt.widgets.Text;
  55 import org.osgi.service.prefs.BackingStoreException;
  56
  57 /**
  58  * Wizard page that allows the user entering the location of a remote repository
  59  * by specifying URL manually or selecting a preconfigured remote repository.
  60  */
  61 public class RepositorySelectionPage extends BaseWizardPage {
  62
  63         private final static String USED_URIS_PREF = "RepositorySelectionPage.UsedUris"; //$NON-NLS-1$
  64
  65         private final static String USED_URIS_LENGTH_PREF = "RepositorySelectionPage.UsedUrisLength"; //$NON-NLS-1$
  66
  67         private static final int REMOTE_CONFIG_TEXT_MAX_LENGTH = 80;
  68
  69         private static final int S_GIT = 0;
  70
  71         private static final int S_SSH = 1;
  72
  73         private static final int S_SFTP = 2;
  74
  75         private static final int S_HTTP = 3;
  76
  77         private static final int S_HTTPS = 4;
  78
  79         private static final int S_FTP = 5;
  80
  81         private static final int S_FILE = 6;
  82
  83         private static final String[] DEFAULT_SCHEMES;
  84
  85         static {
  86                 DEFAULT_SCHEMES = new String[7];
  87                 DEFAULT_SCHEMES[S_GIT] = "git"; //$NON-NLS-1$
  88                 DEFAULT_SCHEMES[S_SSH] = "git+ssh"; //$NON-NLS-1$
  89                 DEFAULT_SCHEMES[S_SFTP] = "sftp"; //$NON-NLS-1$
  90                 DEFAULT_SCHEMES[S_HTTP] = "http"; //$NON-NLS-1$
  91                 DEFAULT_SCHEMES[S_HTTPS] = "https"; //$NON-NLS-1$
  92                 DEFAULT_SCHEMES[S_FTP] = "ftp"; //$NON-NLS-1$
  93                 DEFAULT_SCHEMES[S_FILE] = "file"; //$NON-NLS-1$
  94         }
  95
  96         private final List<RemoteConfig> configuredRemotes;
  97
  98         private final boolean sourceSelection;
  99
 100         private final String presetUri;
 101
 102         private Group authGroup;
 103
 104         private Text uriText;
 105
 106         private Text hostText;
 107
 108         private Text pathText;
 109
 110         private Text userText;
 111
 112         private Text passText;
 113
 114         private Combo scheme;
 115
 116         private Text portText;
 117
 118         private int eventDepth;
 119
 120         private URIish uri;
 121
 122         private RemoteConfig remoteConfig;
 123
 124         private RepositorySelection selection;
 125
 126         private Composite remotePanel;
 127
 128         private Button remoteButton;
 129
 130         private Combo remoteCombo;
 131
 132         private Composite uriPanel;
 133
 134         private Button uriButton;
 135
 136         /**
 137          * Create repository selection page, allowing user specifying URI or
 138          * (optionally) choosing from preconfigured remotes list.
 139          * <p>
 140          * Wizard page is created without image, just with text description.
 141          *
 142          * @param sourceSelection
 143          *            true if dialog is used for source selection; false otherwise
 144          *            (destination selection). This indicates appropriate text
 145          *            messages.
 146          * @param configuredRemotes
 147          *            list of configured remotes that user may select as an
 148          *            alternative to manual URI specification. Remotes appear in
 149          *            given order in GUI, with
 150          *            {@value Constants#DEFAULT_REMOTE_NAME} as the default choice.
 151          *            List may be null or empty - no remotes configurations appear
 152          *            in this case. Note that the provided list may be changed by
 153          *            this constructor.
 154          * @param presetUri
 155          *            the pre-set URI, may be null
 156          */
 157         public RepositorySelectionPage(final boolean sourceSelection,
 158                         final List<RemoteConfig> configuredRemotes, String presetUri) {
 159
 160                 super(RepositorySelectionPage.class.getName());
 161
 162                 this.uri = new URIish();
 163                 this.sourceSelection = sourceSelection;
 164                 this.presetUri = presetUri;
 165
 166                 this.configuredRemotes = getUsableConfigs(configuredRemotes);
 167                 this.remoteConfig = selectDefaultRemoteConfig();
 168
 169                 selection = RepositorySelection.INVALID_SELECTION;
 170
 171                 if (sourceSelection) {
 172                         setTitle(UIText.RepositorySelectionPage_sourceSelectionTitle);
 173                         setDescription(UIText.RepositorySelectionPage_sourceSelectionDescription);
 174                 } else {
 175                         setTitle(UIText.RepositorySelectionPage_destinationSelectionTitle);
 176                         setDescription(UIText.RepositorySelectionPage_destinationSelectionDescription);
 177                 }
 178         }
 179
 180         /**
 181          * Create repository selection page, allowing user specifying URI, with no
 182          * preconfigured remotes selection.
 183          *
 184          * @param sourceSelection
 185          *            true if dialog is used for source selection; false otherwise
 186          *            (destination selection). This indicates appropriate text
 187          *            messages.
 188          * @param presetUri
 189          *            the pre-set URI, may be null
 190          */
 191         public RepositorySelectionPage(final boolean sourceSelection,
 192                         String presetUri) {
 193                 this(sourceSelection, null, presetUri);
 194         }
 195
 196         /**
 197          * @return repository selection representing current page state.
 198          */
 199         public RepositorySelection getSelection() {
 200                 return selection;
 201         }
 202
 203         /**
 204          * Compare current repository selection set by user to provided one.
 205          *
 206          * @param s
 207          *            repository selection to compare.
 208          * @return true if provided selection is equal to current page selection,
 209          *         false otherwise.
 210          */
 211         public boolean selectionEquals(final RepositorySelection s) {
 212                 return selection.equals(s);
 213         }
 214
 215         public void createControl(final Composite parent) {
 216                 final Composite panel = new Composite(parent, SWT.NULL);
 217                 panel.setLayout(new GridLayout());
 218
 219                 if (configuredRemotes != null)
 220                         createRemotePanel(panel);
 221
 222                 createUriPanel(panel);
 223
 224                 updateRemoteAndURIPanels();
 225                 setControl(panel);
 226
 227                 checkPage();
 228         }
 229
 230         private void createRemotePanel(final Composite parent) {
 231                 remoteButton = new Button(parent, SWT.RADIO);
 232                 remoteButton
 233                                 .setText(UIText.RepositorySelectionPage_configuredRemoteChoice
 234                                                 + ":"); //$NON-NLS-1$
 235                 remoteButton.setSelection(true);
 236
 237                 remotePanel = new Composite(parent, SWT.NULL);
 238                 remotePanel.setLayout(new GridLayout());
 239                 final GridData gd = new GridData();
 240                 gd.grabExcessHorizontalSpace = true;
 241                 gd.horizontalAlignment = SWT.FILL;
 242                 remotePanel.setLayoutData(gd);
 243
 244                 remoteCombo = new Combo(remotePanel, SWT.READ_ONLY | SWT.DROP_DOWN);
 245                 final String items[] = new String[configuredRemotes.size()];
 246                 int i = 0;
 247                 for (final RemoteConfig rc : configuredRemotes)
 248                         items[i++] = getTextForRemoteConfig(rc);
 249                 final int defaultIndex = configuredRemotes.indexOf(remoteConfig);
 250                 remoteCombo.setItems(items);
 251                 remoteCombo.select(defaultIndex);
 252                 remoteCombo.addSelectionListener(new SelectionAdapter() {
 253                         @Override
 254                         public void widgetSelected(SelectionEvent e) {
 255                                 final int idx = remoteCombo.getSelectionIndex();
 256                                 remoteConfig = configuredRemotes.get(idx);
 257                                 checkPage();
 258                         }
 259                 });
 260         }
 261
 262         private void createUriPanel(final Composite parent) {
 263                 if (configuredRemotes != null) {
 264                         uriButton = new Button(parent, SWT.RADIO);
 265                         uriButton.setText(UIText.RepositorySelectionPage_uriChoice + ":"); //$NON-NLS-1$
 266                         uriButton.addSelectionListener(new SelectionAdapter() {
 267                                 public void widgetSelected(SelectionEvent e) {
 268                                         // occurs either on selection or unselection event
 269                                         updateRemoteAndURIPanels();
 270                                         checkPage();
 271                                 }
 272                         });
 273                 }
 274
 275                 uriPanel = new Composite(parent, SWT.NULL);
 276                 uriPanel.setLayout(new GridLayout());
 277                 final GridData gd = new GridData();
 278                 gd.grabExcessHorizontalSpace = true;
 279                 gd.horizontalAlignment = SWT.FILL;
 280                 uriPanel.setLayoutData(gd);
 281
 282                 createLocationGroup(uriPanel);
 283                 createConnectionGroup(uriPanel);
 284                 authGroup = createAuthenticationGroup(uriPanel);
 285         }
 286
 287         private void createLocationGroup(final Composite parent) {
 288                 final Group g = createGroup(parent,
 289                                 UIText.RepositorySelectionPage_groupLocation);
 290
 291                 g.setLayout(new GridLayout(3, false));
 292
 293                 newLabel(g, UIText.RepositorySelectionPage_promptURI + ":"); //$NON-NLS-1$
 294                 uriText = new Text(g, SWT.BORDER);
 295
 296                 if (presetUri != null)
 297                         uriText.setText(presetUri);
 298
 299                 uriText.setLayoutData(createFieldGridData());
 300                 uriText.addModifyListener(new ModifyListener() {
 301                         public void modifyText(final ModifyEvent e) {
 302                                 try {
 303                                         eventDepth++;
 304                                         if (eventDepth != 1)
 305                                                 return;
 306
 307                                         final URIish u = new URIish(uriText.getText());
 308                                         safeSet(hostText, u.getHost());
 309                                         safeSet(pathText, u.getPath());
 310                                         safeSet(userText, u.getUser());
 311                                         safeSet(passText, u.getPass());
 312
 313                                         if (u.getPort() > 0)
 314                                                 portText.setText(Integer.toString(u.getPort()));
 315                                         else
 316                                                 portText.setText(""); //$NON-NLS-1$
 317
 318                                         if (isFile(u))
 319                                                 scheme.select(S_FILE);
 320                                         else if (isSSH(u))
 321                                                 scheme.select(S_SSH);
 322                                         else {
 323                                                 for (int i = 0; i < DEFAULT_SCHEMES.length; i++) {
 324                                                         if (DEFAULT_SCHEMES[i].equals(u.getScheme())) {
 325                                                                 scheme.select(i);
 326                                                                 break;
 327                                                         }
 328                                                 }
 329                                         }
 330
 331                                         updateAuthGroup();
 332                                         uri = u;
 333                                 } catch (URISyntaxException err) {
 334                                         // leave uriText as it is, but clean up underlying uri and
 335                                         // decomposed fields
 336                                         uri = new URIish();
 337                                         hostText.setText(""); //$NON-NLS-1$
 338                                         pathText.setText(""); //$NON-NLS-1$
 339                                         userText.setText(""); //$NON-NLS-1$
 340                                         passText.setText(""); //$NON-NLS-1$
 341                                         portText.setText(""); //$NON-NLS-1$
 342                                         scheme.select(0);
 343                                 } finally {
 344                                         eventDepth--;
 345                                 }
 346                                 checkPage();
 347                         }
 348                 });
 349
 350                 addContentProposalToUriText(uriText);
 351
 352                 Button browseButton = new Button(g, SWT.NULL);
 353                 browseButton.setText(UIText.RepositorySelectionPage_BrowseLocalFile);
 354                 browseButton.addSelectionListener(new SelectionAdapter() {
 355
 356                         @Override
 357                         public void widgetSelected(SelectionEvent e) {
 358                                 DirectoryDialog dialog = new DirectoryDialog(getShell());
 359                                 // if a file-uri was selected before, let's try to open
 360                                 // the directory dialog on the same directory
 361                                 if (!uriText.getText().equals("")) { //$NON-NLS-1$
 362                                         try {
 363                                                 URI testUri = URI.create(uriText.getText().replace(
 364                                                                 '\\', '/'));
 365                                                 if (testUri.getScheme().equals("file")) { //$NON-NLS-1$
 366                                                         String path = testUri.getPath();
 367                                                         if (path.length() > 1 && path.startsWith("/")) //$NON-NLS-1$
 368                                                                 path = path.substring(1);
 369
 370                                                         dialog.setFilterPath(path);
 371                                                 }
 372                                         } catch (IllegalArgumentException e1) {
 373                                                 // ignore here, we just' don't set the directory in the
 374                                                 // browser
 375                                         }
 376
 377                                 }
 378                                 String result = dialog.open();
 379                                 if (result != null)
 380                                         uriText.setText("file:///" + result); //$NON-NLS-1$
 381                         }
 382
 383                 });
 384
 385                 newLabel(g, UIText.RepositorySelectionPage_promptHost + ":"); //$NON-NLS-1$
 386                 hostText = new Text(g, SWT.BORDER);
 387                 GridDataFactory.fillDefaults().span(2, 1).applyTo(hostText);
 388                 hostText.addModifyListener(new ModifyListener() {
 389                         public void modifyText(final ModifyEvent e) {
 390                                 setURI(uri.setHost(nullString(hostText.getText())));
 391                         }
 392                 });
 393
 394                 newLabel(g, UIText.RepositorySelectionPage_promptPath + ":"); //$NON-NLS-1$
 395                 pathText = new Text(g, SWT.BORDER);
 396                 GridDataFactory.fillDefaults().span(2, 1).applyTo(pathText);
 397                 pathText.addModifyListener(new ModifyListener() {
 398                         public void modifyText(final ModifyEvent e) {
 399                                 setURI(uri.setPath(nullString(pathText.getText())));
 400                         }
 401                 });
 402         }
 403
 404         private Group createAuthenticationGroup(final Composite parent) {
 405                 final Group g = createGroup(parent,
 406                                 UIText.RepositorySelectionPage_groupAuthentication);
 407
 408                 newLabel(g, UIText.RepositorySelectionPage_promptUser + ":"); //$NON-NLS-1$
 409                 userText = new Text(g, SWT.BORDER);
 410                 userText.setLayoutData(createFieldGridData());
 411                 userText.addModifyListener(new ModifyListener() {
 412                         public void modifyText(final ModifyEvent e) {
 413                                 setURI(uri.setUser(nullString(userText.getText())));
 414                         }
 415                 });
 416
 417                 newLabel(g, UIText.RepositorySelectionPage_promptPassword + ":"); //$NON-NLS-1$
 418                 passText = new Text(g, SWT.BORDER | SWT.PASSWORD);
 419                 passText.setLayoutData(createFieldGridData());
 420                 return g;
 421         }
 422
 423         private void createConnectionGroup(final Composite parent) {
 424                 final Group g = createGroup(parent,
 425                                 UIText.RepositorySelectionPage_groupConnection);
 426
 427                 newLabel(g, UIText.RepositorySelectionPage_promptScheme + ":"); //$NON-NLS-1$
 428                 scheme = new Combo(g, SWT.DROP_DOWN | SWT.READ_ONLY);
 429                 scheme.setItems(DEFAULT_SCHEMES);
 430                 scheme.addSelectionListener(new SelectionAdapter() {
 431                         public void widgetSelected(final SelectionEvent e) {
 432                                 final int idx = scheme.getSelectionIndex();
 433                                 if (idx < 0)
 434                                         setURI(uri.setScheme(null));
 435                                 else
 436                                         setURI(uri.setScheme(nullString(scheme.getItem(idx))));
 437                                 updateAuthGroup();
 438                         }
 439                 });
 440
 441                 newLabel(g, UIText.RepositorySelectionPage_promptPort + ":"); //$NON-NLS-1$
 442                 portText = new Text(g, SWT.BORDER);
 443                 portText.addVerifyListener(new VerifyListener() {
 444                         final Pattern p = Pattern.compile("^(?:[1-9][0-9]*)?$"); //$NON-NLS-1$
 445
 446                         public void verifyText(final VerifyEvent e) {
 447                                 final String v = portText.getText();
 448                                 e.doit = p.matcher(
 449                                                 v.substring(0, e.start) + e.text + v.substring(e.end))
 450                                                 .matches();
 451                         }
 452                 });
 453                 portText.addModifyListener(new ModifyListener() {
 454                         public void modifyText(final ModifyEvent e) {
 455                                 final String val = nullString(portText.getText());
 456                                 if (val == null)
 457                                         setURI(uri.setPort(-1));
 458                                 else {
 459                                         try {
 460                                                 setURI(uri.setPort(Integer.parseInt(val)));
 461                                         } catch (NumberFormatException err) {
 462                                                 // Ignore it for now.
 463                                         }
 464                                 }
 465                         }
 466                 });
 467         }
 468
 469         private Group createGroup(final Composite parent, final String text) {
 470                 final Group g = new Group(parent, SWT.NONE);
 471                 final GridLayout layout = new GridLayout();
 472                 layout.numColumns = 2;
 473                 g.setLayout(layout);
 474                 g.setText(text);
 475                 final GridData gd = new GridData();
 476                 gd.grabExcessHorizontalSpace = true;
 477                 gd.horizontalAlignment = SWT.FILL;
 478                 g.setLayoutData(gd);
 479                 return g;
 480         }
 481
 482         private void newLabel(final Group g, final String text) {
 483                 new Label(g, SWT.NULL).setText(text);
 484         }
 485
 486         private GridData createFieldGridData() {
 487                 return new GridData(SWT.FILL, SWT.DEFAULT, true, false);
 488         }
 489
 490         private boolean isGIT(final URIish uri) {
 491                 return "git".equals(uri.getScheme()); //$NON-NLS-1$
 492         }
 493
 494         private boolean isFile(final URIish uri) {
 495                 if ("file".equals(uri.getScheme()) || uri.getScheme() == null) //$NON-NLS-1$
 496                         return true;
 497                 if (uri.getHost() != null || uri.getPort() > 0 || uri.getUser() != null
 498                                 || uri.getPass() != null || uri.getPath() == null)
 499                         return false;
 500                 if (uri.getScheme() == null)
 501                         return FS.resolve(new File("."), uri.getPath()).isDirectory(); //$NON-NLS-1$
 502                 return false;
 503         }
 504
 505         private boolean isSSH(final URIish uri) {
 506                 if (!uri.isRemote())
 507                         return false;
 508                 final String scheme = uri.getScheme();
 509                 if ("ssh".equals(scheme)) //$NON-NLS-1$
 510                         return true;
 511                 if ("ssh+git".equals(scheme)) //$NON-NLS-1$
 512                         return true;
 513                 if ("git+ssh".equals(scheme)) //$NON-NLS-1$
 514                         return true;
 515                 if (scheme == null && uri.getHost() != null && uri.getPath() != null)
 516                         return true;
 517                 return false;
 518         }
 519
 520         private String nullString(final String value) {
 521                 if (value == null)
 522                         return null;
 523                 final String v = value.trim();
 524                 return v.length() == 0 ? null : v;
 525         }
 526
 527         private void safeSet(final Text text, final String value) {
 528                 text.setText(value != null ? value : ""); //$NON-NLS-1$
 529         }
 530
 531         private boolean isURISelected() {
 532                 return configuredRemotes == null || presetUri != null
 533                                 || uriButton.getSelection();
 534         }
 535
 536         private void setURI(final URIish u) {
 537                 try {
 538                         eventDepth++;
 539                         if (eventDepth == 1) {
 540                                 uri = u;
 541                                 uriText.setText(uri.toString());
 542                                 checkPage();
 543                         }
 544                 } finally {
 545                         eventDepth--;
 546                 }
 547         }
 548
 549         private List<RemoteConfig> getUsableConfigs(final List<RemoteConfig> remotes) {
 550
 551                 if (remotes == null)
 552                         return null;
 553
 554                 List<RemoteConfig> result = new ArrayList<RemoteConfig>();
 555
 556                 for (RemoteConfig config : remotes)
 557                         if ((sourceSelection && !config.getURIs().isEmpty() || !sourceSelection
 558                                         && (!config.getPushURIs().isEmpty() || !config.getURIs()
 559                                                         .isEmpty())))
 560                                 result.add(config);
 561
 562                 if (!result.isEmpty())
 563                         return result;
 564
 565                 return null;
 566         }
 567
 568         private RemoteConfig selectDefaultRemoteConfig() {
 569                 if (configuredRemotes == null)
 570                         return null;
 571                 for (final RemoteConfig rc : configuredRemotes)
 572                         if (Constants.DEFAULT_REMOTE_NAME.equals(rc.getName()))
 573                                 return rc;
 574                 return configuredRemotes.get(0);
 575         }
 576
 577         private String getTextForRemoteConfig(final RemoteConfig rc) {
 578                 final StringBuilder sb = new StringBuilder(rc.getName());
 579                 sb.append(": "); //$NON-NLS-1$
 580                 boolean first = true;
 581                 List<URIish> uris;
 582                 if (sourceSelection) {
 583                         uris = rc.getURIs();
 584                 } else {
 585                         uris = rc.getPushURIs();
 586                         // if no push URIs are defined, use fetch URIs instead
 587                         if (uris.isEmpty()) {
 588                                 uris = rc.getURIs();
 589                         }
 590                 }
 591
 592                 for (final URIish u : uris) {
 593                         final String uString = u.toString();
 594                         if (first)
 595                                 first = false;
 596                         else {
 597                                 sb.append(", "); //$NON-NLS-1$
 598                                 if (sb.length() + uString.length() > REMOTE_CONFIG_TEXT_MAX_LENGTH) {
 599                                         sb.append("..."); //$NON-NLS-1$
 600                                         break;
 601                                 }
 602                         }
 603                         sb.append(uString);
 604                 }
 605                 return sb.toString();
 606         }
 607
 608         private void checkPage() {
 609                 if (isURISelected()) {
 610                         assert uri != null;
 611                         if (uriText.getText().length() == 0) {
 612                                 selectionIncomplete(null);
 613                                 return;
 614                         }
 615
 616                         try {
 617                                 final URIish finalURI = new URIish(uriText.getText());
 618                                 String proto = finalURI.getScheme();
 619                                 if (proto == null && scheme.getSelectionIndex() >= 0)
 620                                         proto = scheme.getItem(scheme.getSelectionIndex());
 621
 622                                 if (uri.getPath() == null) {
 623                                         selectionIncomplete(NLS.bind(
 624                                                         UIText.RepositorySelectionPage_fieldRequired,
 625                                                         unamp(UIText.RepositorySelectionPage_promptPath),
 626                                                         proto));
 627                                         return;
 628                                 }
 629
 630                                 if (isFile(finalURI)) {
 631                                         String badField = null;
 632                                         if (uri.getHost() != null)
 633                                                 badField = UIText.RepositorySelectionPage_promptHost;
 634                                         else if (uri.getUser() != null)
 635                                                 badField = UIText.RepositorySelectionPage_promptUser;
 636                                         else if (uri.getPass() != null)
 637                                                 badField = UIText.RepositorySelectionPage_promptPassword;
 638                                         if (badField != null) {
 639                                                 selectionIncomplete(NLS
 640                                                                 .bind(
 641                                                                                 UIText.RepositorySelectionPage_fieldNotSupported,
 642                                                                                 unamp(badField), proto));
 643                                                 return;
 644                                         }
 645
 646                                         final File d = FS.resolve(new File("."), uri.getPath()); //$NON-NLS-1$
 647                                         if (!d.exists()) {
 648                                                 selectionIncomplete(NLS.bind(
 649                                                                 UIText.RepositorySelectionPage_fileNotFound, d
 650                                                                                 .getAbsolutePath()));
 651                                                 return;
 652                                         }
 653
 654                                         selectionComplete(finalURI, null);
 655                                         return;
 656                                 }
 657
 658                                 if (uri.getHost() == null) {
 659                                         selectionIncomplete(NLS.bind(
 660                                                         UIText.RepositorySelectionPage_fieldRequired,
 661                                                         unamp(UIText.RepositorySelectionPage_promptHost),
 662                                                         proto));
 663                                         return;
 664                                 }
 665
 666                                 if (isGIT(finalURI)) {
 667                                         String badField = null;
 668                                         if (uri.getUser() != null)
 669                                                 badField = UIText.RepositorySelectionPage_promptUser;
 670                                         else if (uri.getPass() != null)
 671                                                 badField = UIText.RepositorySelectionPage_promptPassword;
 672                                         if (badField != null) {
 673                                                 selectionIncomplete(NLS
 674                                                                 .bind(
 675                                                                                 UIText.RepositorySelectionPage_fieldNotSupported,
 676                                                                                 unamp(badField), proto));
 677                                                 return;
 678                                         }
 679                                 }
 680
 681                                 selectionComplete(finalURI, null);
 682                                 return;
 683                         } catch (URISyntaxException e) {
 684                                 selectionIncomplete(e.getReason());
 685                                 return;
 686                         } catch (Exception e) {
 687                                 Activator.logError(NLS.bind(
 688                                                 UIText.RepositorySelectionPage_errorValidating,
 689                                                 getClass().getName()),
 690                                                 e);
 691                                 selectionIncomplete(UIText.RepositorySelectionPage_internalError);
 692                                 return;
 693                         }
 694                 } else {
 695                         assert remoteButton.getSelection();
 696                         selectionComplete(null, remoteConfig);
 697                         return;
 698                 }
 699         }
 700
 701         private String unamp(String s) {
 702                 return s.replace("&", ""); //$NON-NLS-1$ //$NON-NLS-2$
 703         }
 704
 705         private void selectionIncomplete(final String errorMessage) {
 706                 setExposedSelection(null, null);
 707                 setErrorMessage(errorMessage);
 708                 setPageComplete(false);
 709         }
 710
 711         private void selectionComplete(final URIish u, final RemoteConfig rc) {
 712                 setExposedSelection(u, rc);
 713                 setErrorMessage(null);
 714                 setPageComplete(true);
 715                 notifySelectionChanged();
 716         }
 717
 718         private void setExposedSelection(final URIish u, final RemoteConfig rc) {
 719                 final RepositorySelection newSelection = new RepositorySelection(u, rc);
 720                 if (newSelection.equals(selection))
 721                         return;
 722
 723                 selection = newSelection;
 724                 notifySelectionChanged();
 725         }
 726
 727         private void updateRemoteAndURIPanels() {
 728                 setEnabledRecursively(uriPanel, isURISelected());
 729                 if (uriPanel.getEnabled())
 730                         updateAuthGroup();
 731                 if (configuredRemotes != null)
 732                         setEnabledRecursively(remotePanel, !isURISelected());
 733         }
 734
 735         private void updateAuthGroup() {
 736                 switch (scheme.getSelectionIndex()) {
 737                 case S_GIT:
 738                         hostText.setEnabled(true);
 739                         portText.setEnabled(true);
 740                         setEnabledRecursively(authGroup, false);
 741                         break;
 742                 case S_SSH:
 743                 case S_SFTP:
 744                 case S_HTTP:
 745                 case S_HTTPS:
 746                 case S_FTP:
 747                         hostText.setEnabled(true);
 748                         portText.setEnabled(true);
 749                         setEnabledRecursively(authGroup, true);
 750                         break;
 751                 case S_FILE:
 752                         hostText.setEnabled(false);
 753                         portText.setEnabled(false);
 754                         setEnabledRecursively(authGroup, false);
 755                         break;
 756                 }
 757         }
 758
 759         @Override
 760         public void setVisible(boolean visible) {
 761                 super.setVisible(visible);
 762                 if (visible)
 763                         uriText.setFocus();
 764         }
 765
 766         /**
 767          * Adds a URI string to the list of previously added ones
 768          *
 769          * TODO move this to some proper preferences handling class instead of
 770          * making it static
 771          *
 772          * @param stringToAdd
 773          */
 774         public static void saveUriInPrefs(String stringToAdd) {
 775
 776                 List<String> uriStrings = getUrisFromPrefs();
 777
 778                 if (uriStrings.indexOf(stringToAdd) == 0)
 779                         return;
 780                 uriStrings.add(0, stringToAdd);
 781
 782                 IEclipsePreferences prefs = new InstanceScope().getNode(Activator
 783                                 .getPluginId());
 784
 785                 StringBuilder sb = new StringBuilder();
 786                 StringBuilder lb = new StringBuilder();
 787
 788                 // there is no "good" separator for URIish, so we
 789                 // keep track of the URI lengths separately
 790                 for (String uriString : uriStrings) {
 791                         sb.append(uriString);
 792                         lb.append(uriString.length());
 793                         lb.append(" "); //$NON-NLS-1$
 794                 }
 795                 prefs.put(USED_URIS_PREF, sb.toString());
 796                 prefs.put(USED_URIS_LENGTH_PREF, lb.toString());
 797
 798                 try {
 799                         prefs.flush();
 800                 } catch (BackingStoreException e) {
 801                         // we simply ignore this here
 802                 }
 803         }
 804
 805         /**
 806          * Gets the previously added URIs from the preferences
 807          *
 808          * TODO move this to some proper preferences handling class instead of
 809          * making it static
 810          *
 811          * @return a (possibly empty) list of URIs, never <code>null</code>
 812          */
 813         public static List<String> getUrisFromPrefs() {
 814
 815                 // use a TreeSet to get the same sorting always
 816                 List<String> uriStrings = new ArrayList<String>();
 817
 818                 IEclipsePreferences prefs = new InstanceScope().getNode(Activator
 819                                 .getPluginId());
 820                 // since there is no "good" separator for URIish, so we
 821                 // keep track of the URI lengths separately
 822                 String uriLengths = prefs.get(USED_URIS_LENGTH_PREF, ""); //$NON-NLS-1$
 823                 String uris = prefs.get(USED_URIS_PREF, ""); //$NON-NLS-1$
 824
 825                 StringTokenizer tok = new StringTokenizer(uriLengths, " "); //$NON-NLS-1$
 826                 int offset = 0;
 827                 while (tok.hasMoreTokens()) {
 828                         try {
 829                                 int length = Integer.parseInt(tok.nextToken());
 830                                 if (uris.length() >= (offset + length)) {
 831                                         uriStrings.add(uris.substring(offset, offset + length));
 832                                         offset += length;
 833                                 }
 834                         } catch (NumberFormatException nfe) {
 835                                 // ignore here
 836                         }
 837
 838                 }
 839
 840                 return uriStrings;
 841         }
 842
 843         private void setEnabledRecursively(final Control control,
 844                         final boolean enable) {
 845                 control.setEnabled(enable);
 846                 if (control instanceof Composite)
 847                         for (final Control child : ((Composite) control).getChildren())
 848                                 setEnabledRecursively(child, enable);
 849         }
 850
 851         private void addContentProposalToUriText(Text uriTextField) {
 852
 853                 UIUtils.addBulbDecorator(uriTextField, UIText.RepositorySelectionPage_ShowPreviousURIs_HoverText);
 854
 855                 IContentProposalProvider cp = new IContentProposalProvider() {
 856
 857                         public IContentProposal[] getProposals(String contents, int position) {
 858
 859                                 List<IContentProposal> resultList = new ArrayList<IContentProposal>();
 860
 861                                 String patternString = contents;
 862                                 while (patternString.length() > 0
 863                                                 && patternString.charAt(0) == ' ')
 864                                         patternString = patternString.substring(1);
 865                                 // make the simplest possible pattern check: allow "*"
 866                                 // for multiple characters
 867                                 patternString = patternString.replaceAll("\\x2A", ".*"); //$NON-NLS-1$ //$NON-NLS-2$
 868                                 // make sure we add a (logical) * at the end
 869                                 if (!patternString.endsWith(".*")) { //$NON-NLS-1$
 870                                         patternString = patternString + ".*"; //$NON-NLS-1$
 871                                 }
 872                                 // let's compile a case-insensitive pattern (assumes ASCII only)
 873                                 Pattern pattern;
 874                                 try {
 875                                         pattern = Pattern.compile(patternString,
 876                                                         Pattern.CASE_INSENSITIVE);
 877                                 } catch (PatternSyntaxException e) {
 878                                         pattern = null;
 879                                 }
 880
 881                                 List<String> uriStrings = getUrisFromPrefs();
 882                                 for (final String uriString : uriStrings) {
 883
 884                                         if (pattern != null
 885                                                         && !pattern.matcher(uriString).matches())
 886                                                 continue;
 887
 888                                         IContentProposal propsal = new IContentProposal() {
 889
 890                                                 public String getLabel() {
 891                                                         return null;
 892                                                 }
 893
 894                                                 public String getDescription() {
 895                                                         return null;
 896                                                 }
 897
 898                                                 public int getCursorPosition() {
 899                                                         return 0;
 900                                                 }
 901
 902                                                 public String getContent() {
 903                                                         return uriString;
 904                                                 }
 905                                         };
 906                                         resultList.add(propsal);
 907                                 }
 908
 909                                 return resultList.toArray(new IContentProposal[resultList
 910                                                 .size()]);
 911                         }
 912                 };
 913
 914                 // set the acceptance style to always replace the complete content
 915                 new ContentProposalAdapter(uriTextField, new TextContentAdapter(), cp,
 916                                 null, null)
 917                                 .setProposalAcceptanceStyle(ContentProposalAdapter.PROPOSAL_REPLACE);
 918
 919         }
 920 }