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.Transport;
  36 import org.eclipse.jgit.transport.URIish;
  37 import org.eclipse.jgit.util.FS;
  38 import org.eclipse.osgi.util.NLS;
  39 import org.eclipse.swt.SWT;
  40 import org.eclipse.swt.dnd.Clipboard;
  41 import org.eclipse.swt.dnd.TextTransfer;
  42 import org.eclipse.swt.events.ModifyEvent;
  43 import org.eclipse.swt.events.ModifyListener;
  44 import org.eclipse.swt.events.SelectionAdapter;
  45 import org.eclipse.swt.events.SelectionEvent;
  46 import org.eclipse.swt.events.VerifyEvent;
  47 import org.eclipse.swt.events.VerifyListener;
  48 import org.eclipse.swt.layout.GridData;
  49 import org.eclipse.swt.layout.GridLayout;
  50 import org.eclipse.swt.widgets.Button;
  51 import org.eclipse.swt.widgets.Combo;
  52 import org.eclipse.swt.widgets.Composite;
  53 import org.eclipse.swt.widgets.Control;
  54 import org.eclipse.swt.widgets.DirectoryDialog;
  55 import org.eclipse.swt.widgets.Display;
  56 import org.eclipse.swt.widgets.Group;
  57 import org.eclipse.swt.widgets.Label;
  58 import org.eclipse.swt.widgets.Text;
  59 import org.osgi.service.prefs.BackingStoreException;
  60
  61 /**
  62  * Wizard page that allows the user entering the location of a remote repository
  63  * by specifying URL manually or selecting a preconfigured remote repository.
  64  */
  65 public class RepositorySelectionPage extends BaseWizardPage {
  66
  67         private final static String USED_URIS_PREF = "RepositorySelectionPage.UsedUris"; //$NON-NLS-1$
  68
  69         private final static String USED_URIS_LENGTH_PREF = "RepositorySelectionPage.UsedUrisLength"; //$NON-NLS-1$
  70
  71         private static final int REMOTE_CONFIG_TEXT_MAX_LENGTH = 80;
  72
  73         private static final int S_GIT = 0;
  74
  75         private static final int S_SSH = 1;
  76
  77         private static final int S_SFTP = 2;
  78
  79         private static final int S_HTTP = 3;
  80
  81         private static final int S_HTTPS = 4;
  82
  83         private static final int S_FTP = 5;
  84
  85         private static final int S_FILE = 6;
  86
  87         private static final String[] DEFAULT_SCHEMES;
  88
  89         static {
  90                 DEFAULT_SCHEMES = new String[7];
  91                 DEFAULT_SCHEMES[S_GIT] = "git"; //$NON-NLS-1$
  92                 DEFAULT_SCHEMES[S_SSH] = "git+ssh"; //$NON-NLS-1$
  93                 DEFAULT_SCHEMES[S_SFTP] = "sftp"; //$NON-NLS-1$
  94                 DEFAULT_SCHEMES[S_HTTP] = "http"; //$NON-NLS-1$
  95                 DEFAULT_SCHEMES[S_HTTPS] = "https"; //$NON-NLS-1$
  96                 DEFAULT_SCHEMES[S_FTP] = "ftp"; //$NON-NLS-1$
  97                 DEFAULT_SCHEMES[S_FILE] = "file"; //$NON-NLS-1$
  98         }
  99
 100         private final List<RemoteConfig> configuredRemotes;
 101
 102         private final boolean sourceSelection;
 103
 104         private final String presetUri;
 105
 106         private Group authGroup;
 107
 108         private Text uriText;
 109
 110         private Text hostText;
 111
 112         private Text pathText;
 113
 114         private Text userText;
 115
 116         private Text passText;
 117
 118         private Combo scheme;
 119
 120         private Text portText;
 121
 122         private int eventDepth;
 123
 124         private URIish uri;
 125
 126         private RemoteConfig remoteConfig;
 127
 128         private RepositorySelection selection;
 129
 130         private Composite remotePanel;
 131
 132         private Button remoteButton;
 133
 134         private Combo remoteCombo;
 135
 136         private Composite uriPanel;
 137
 138         private Button uriButton;
 139
 140         /**
 141          * Create repository selection page, allowing user specifying URI or
 142          * (optionally) choosing from preconfigured remotes list.
 143          * <p>
 144          * Wizard page is created without image, just with text description.
 145          *
 146          * @param sourceSelection
 147          *            true if dialog is used for source selection; false otherwise
 148          *            (destination selection). This indicates appropriate text
 149          *            messages.
 150          * @param configuredRemotes
 151          *            list of configured remotes that user may select as an
 152          *            alternative to manual URI specification. Remotes appear in
 153          *            given order in GUI, with
 154          *            {@value Constants#DEFAULT_REMOTE_NAME} as the default choice.
 155          *            List may be null or empty - no remotes configurations appear
 156          *            in this case. Note that the provided list may be changed by
 157          *            this constructor.
 158          * @param presetUri
 159          *            the pre-set URI, may be null
 160          */
 161         public RepositorySelectionPage(final boolean sourceSelection,
 162                         final List<RemoteConfig> configuredRemotes, String presetUri) {
 163
 164                 super(RepositorySelectionPage.class.getName());
 165
 166                 this.uri = new URIish();
 167                 this.sourceSelection = sourceSelection;
 168
 169                 String preset = null;
 170                 if (presetUri == null) {
 171                         Clipboard clippy = new Clipboard(Display.getCurrent());
 172                         String text = (String) clippy.getContents(TextTransfer.getInstance());
 173                         try {
 174                                 if(Transport.canHandleProtocol(new URIish(text))) {
 175                                         preset = text;
 176                                 }
 177                         } catch (URISyntaxException e) {
 178                                 preset = null;
 179                         }
 180                 }
 181                 this.presetUri = preset;
 182
 183                 this.configuredRemotes = getUsableConfigs(configuredRemotes);
 184                 this.remoteConfig = selectDefaultRemoteConfig();
 185
 186                 selection = RepositorySelection.INVALID_SELECTION;
 187
 188                 if (sourceSelection) {
 189                         setTitle(UIText.RepositorySelectionPage_sourceSelectionTitle);
 190                         setDescription(UIText.RepositorySelectionPage_sourceSelectionDescription);
 191                 } else {
 192                         setTitle(UIText.RepositorySelectionPage_destinationSelectionTitle);
 193                         setDescription(UIText.RepositorySelectionPage_destinationSelectionDescription);
 194                 }
 195         }
 196
 197         /**
 198          * Create repository selection page, allowing user specifying URI, with no
 199          * preconfigured remotes selection.
 200          *
 201          * @param sourceSelection
 202          *            true if dialog is used for source selection; false otherwise
 203          *            (destination selection). This indicates appropriate text
 204          *            messages.
 205          * @param presetUri
 206          *            the pre-set URI, may be null
 207          */
 208         public RepositorySelectionPage(final boolean sourceSelection,
 209                         String presetUri) {
 210                 this(sourceSelection, null, presetUri);
 211         }
 212
 213         /**
 214          * @return repository selection representing current page state.
 215          */
 216         public RepositorySelection getSelection() {
 217                 return selection;
 218         }
 219
 220         /**
 221          * Compare current repository selection set by user to provided one.
 222          *
 223          * @param s
 224          *            repository selection to compare.
 225          * @return true if provided selection is equal to current page selection,
 226          *         false otherwise.
 227          */
 228         public boolean selectionEquals(final RepositorySelection s) {
 229                 return selection.equals(s);
 230         }
 231
 232         public void createControl(final Composite parent) {
 233                 final Composite panel = new Composite(parent, SWT.NULL);
 234                 panel.setLayout(new GridLayout());
 235
 236                 if (configuredRemotes != null)
 237                         createRemotePanel(panel);
 238
 239                 createUriPanel(panel);
 240
 241                 if(presetUri != null)
 242                         updateFields(presetUri);
 243
 244                 updateRemoteAndURIPanels();
 245                 setControl(panel);
 246
 247                 checkPage();
 248         }
 249
 250         private void createRemotePanel(final Composite parent) {
 251                 remoteButton = new Button(parent, SWT.RADIO);
 252                 remoteButton
 253                                 .setText(UIText.RepositorySelectionPage_configuredRemoteChoice
 254                                                 + ":"); //$NON-NLS-1$
 255                 remoteButton.setSelection(true);
 256
 257                 remotePanel = new Composite(parent, SWT.NULL);
 258                 remotePanel.setLayout(new GridLayout());
 259                 final GridData gd = new GridData();
 260                 gd.grabExcessHorizontalSpace = true;
 261                 gd.horizontalAlignment = SWT.FILL;
 262                 remotePanel.setLayoutData(gd);
 263
 264                 remoteCombo = new Combo(remotePanel, SWT.READ_ONLY | SWT.DROP_DOWN);
 265                 final String items[] = new String[configuredRemotes.size()];
 266                 int i = 0;
 267                 for (final RemoteConfig rc : configuredRemotes)
 268                         items[i++] = getTextForRemoteConfig(rc);
 269                 final int defaultIndex = configuredRemotes.indexOf(remoteConfig);
 270                 remoteCombo.setItems(items);
 271                 remoteCombo.select(defaultIndex);
 272                 remoteCombo.addSelectionListener(new SelectionAdapter() {
 273                         @Override
 274                         public void widgetSelected(SelectionEvent e) {
 275                                 final int idx = remoteCombo.getSelectionIndex();
 276                                 remoteConfig = configuredRemotes.get(idx);
 277                                 checkPage();
 278                         }
 279                 });
 280         }
 281
 282         private void createUriPanel(final Composite parent) {
 283                 if (configuredRemotes != null) {
 284                         uriButton = new Button(parent, SWT.RADIO);
 285                         uriButton.setText(UIText.RepositorySelectionPage_uriChoice + ":"); //$NON-NLS-1$
 286                         uriButton.addSelectionListener(new SelectionAdapter() {
 287                                 public void widgetSelected(SelectionEvent e) {
 288                                         // occurs either on selection or unselection event
 289                                         updateRemoteAndURIPanels();
 290                                         checkPage();
 291                                 }
 292                         });
 293                 }
 294
 295                 uriPanel = new Composite(parent, SWT.NULL);
 296                 uriPanel.setLayout(new GridLayout());
 297                 final GridData gd = new GridData();
 298                 gd.grabExcessHorizontalSpace = true;
 299                 gd.horizontalAlignment = SWT.FILL;
 300                 uriPanel.setLayoutData(gd);
 301
 302                 createLocationGroup(uriPanel);
 303                 createConnectionGroup(uriPanel);
 304                 authGroup = createAuthenticationGroup(uriPanel);
 305         }
 306
 307         private void createLocationGroup(final Composite parent) {
 308                 final Group g = createGroup(parent,
 309                                 UIText.RepositorySelectionPage_groupLocation);
 310
 311                 g.setLayout(new GridLayout(3, false));
 312
 313                 newLabel(g, UIText.RepositorySelectionPage_promptURI + ":"); //$NON-NLS-1$
 314                 uriText = new Text(g, SWT.BORDER);
 315
 316                 if (presetUri != null)
 317                         uriText.setText(presetUri);
 318
 319                 uriText.setLayoutData(createFieldGridData());
 320                 uriText.addModifyListener(new ModifyListener() {
 321                         public void modifyText(final ModifyEvent e) {
 322                                 updateFields(uriText.getText());
 323                         }
 324                 });
 325
 326                 addContentProposalToUriText(uriText);
 327
 328                 Button browseButton = new Button(g, SWT.NULL);
 329                 browseButton.setText(UIText.RepositorySelectionPage_BrowseLocalFile);
 330                 browseButton.addSelectionListener(new SelectionAdapter() {
 331
 332                         @Override
 333                         public void widgetSelected(SelectionEvent e) {
 334                                 DirectoryDialog dialog = new DirectoryDialog(getShell());
 335                                 // if a file-uri was selected before, let's try to open
 336                                 // the directory dialog on the same directory
 337                                 if (!uriText.getText().equals("")) { //$NON-NLS-1$
 338                                         try {
 339                                                 URI testUri = URI.create(uriText.getText().replace(
 340                                                                 '\\', '/'));
 341                                                 if (testUri.getScheme().equals("file")) { //$NON-NLS-1$
 342                                                         String path = testUri.getPath();
 343                                                         if (path.length() > 1 && path.startsWith("/")) //$NON-NLS-1$
 344                                                                 path = path.substring(1);
 345
 346                                                         dialog.setFilterPath(path);
 347                                                 }
 348                                         } catch (IllegalArgumentException e1) {
 349                                                 // ignore here, we just' don't set the directory in the
 350                                                 // browser
 351                                         }
 352
 353                                 }
 354                                 String result = dialog.open();
 355                                 if (result != null)
 356                                         uriText.setText("file:///" + result); //$NON-NLS-1$
 357                         }
 358
 359                 });
 360
 361                 newLabel(g, UIText.RepositorySelectionPage_promptHost + ":"); //$NON-NLS-1$
 362                 hostText = new Text(g, SWT.BORDER);
 363                 GridDataFactory.fillDefaults().span(2, 1).applyTo(hostText);
 364                 hostText.addModifyListener(new ModifyListener() {
 365                         public void modifyText(final ModifyEvent e) {
 366                                 setURI(uri.setHost(nullString(hostText.getText())));
 367                         }
 368                 });
 369
 370                 newLabel(g, UIText.RepositorySelectionPage_promptPath + ":"); //$NON-NLS-1$
 371                 pathText = new Text(g, SWT.BORDER);
 372                 GridDataFactory.fillDefaults().span(2, 1).applyTo(pathText);
 373                 pathText.addModifyListener(new ModifyListener() {
 374                         public void modifyText(final ModifyEvent e) {
 375                                 setURI(uri.setPath(nullString(pathText.getText())));
 376                         }
 377                 });
 378
 379         }
 380
 381         private Group createAuthenticationGroup(final Composite parent) {
 382                 final Group g = createGroup(parent,
 383                                 UIText.RepositorySelectionPage_groupAuthentication);
 384
 385                 newLabel(g, UIText.RepositorySelectionPage_promptUser + ":"); //$NON-NLS-1$
 386                 userText = new Text(g, SWT.BORDER);
 387                 userText.setLayoutData(createFieldGridData());
 388                 userText.addModifyListener(new ModifyListener() {
 389                         public void modifyText(final ModifyEvent e) {
 390                                 setURI(uri.setUser(nullString(userText.getText())));
 391                         }
 392                 });
 393
 394                 newLabel(g, UIText.RepositorySelectionPage_promptPassword + ":"); //$NON-NLS-1$
 395                 passText = new Text(g, SWT.BORDER | SWT.PASSWORD);
 396                 passText.setLayoutData(createFieldGridData());
 397                 return g;
 398         }
 399
 400         private void createConnectionGroup(final Composite parent) {
 401                 final Group g = createGroup(parent,
 402                                 UIText.RepositorySelectionPage_groupConnection);
 403
 404                 newLabel(g, UIText.RepositorySelectionPage_promptScheme + ":"); //$NON-NLS-1$
 405                 scheme = new Combo(g, SWT.DROP_DOWN | SWT.READ_ONLY);
 406                 scheme.setItems(DEFAULT_SCHEMES);
 407                 scheme.addSelectionListener(new SelectionAdapter() {
 408                         public void widgetSelected(final SelectionEvent e) {
 409                                 final int idx = scheme.getSelectionIndex();
 410                                 if (idx < 0)
 411                                         setURI(uri.setScheme(null));
 412                                 else
 413                                         setURI(uri.setScheme(nullString(scheme.getItem(idx))));
 414                                 updateAuthGroup();
 415                         }
 416                 });
 417
 418                 newLabel(g, UIText.RepositorySelectionPage_promptPort + ":"); //$NON-NLS-1$
 419                 portText = new Text(g, SWT.BORDER);
 420                 portText.addVerifyListener(new VerifyListener() {
 421                         final Pattern p = Pattern.compile("^(?:[1-9][0-9]*)?$"); //$NON-NLS-1$
 422
 423                         public void verifyText(final VerifyEvent e) {
 424                                 final String v = portText.getText();
 425                                 e.doit = p.matcher(
 426                                                 v.substring(0, e.start) + e.text + v.substring(e.end))
 427                                                 .matches();
 428                         }
 429                 });
 430                 portText.addModifyListener(new ModifyListener() {
 431                         public void modifyText(final ModifyEvent e) {
 432                                 final String val = nullString(portText.getText());
 433                                 if (val == null)
 434                                         setURI(uri.setPort(-1));
 435                                 else {
 436                                         try {
 437                                                 setURI(uri.setPort(Integer.parseInt(val)));
 438                                         } catch (NumberFormatException err) {
 439                                                 // Ignore it for now.
 440                                         }
 441                                 }
 442                         }
 443                 });
 444         }
 445
 446         private Group createGroup(final Composite parent, final String text) {
 447                 final Group g = new Group(parent, SWT.NONE);
 448                 final GridLayout layout = new GridLayout();
 449                 layout.numColumns = 2;
 450                 g.setLayout(layout);
 451                 g.setText(text);
 452                 final GridData gd = new GridData();
 453                 gd.grabExcessHorizontalSpace = true;
 454                 gd.horizontalAlignment = SWT.FILL;
 455                 g.setLayoutData(gd);
 456                 return g;
 457         }
 458
 459         private void newLabel(final Group g, final String text) {
 460                 new Label(g, SWT.NULL).setText(text);
 461         }
 462
 463         private GridData createFieldGridData() {
 464                 return new GridData(SWT.FILL, SWT.DEFAULT, true, false);
 465         }
 466
 467         private boolean isGIT(final URIish uri) {
 468                 return "git".equals(uri.getScheme()); //$NON-NLS-1$
 469         }
 470
 471         private boolean isFile(final URIish uri) {
 472                 if ("file".equals(uri.getScheme()) || uri.getScheme() == null) //$NON-NLS-1$
 473                         return true;
 474                 if (uri.getHost() != null || uri.getPort() > 0 || uri.getUser() != null
 475                                 || uri.getPass() != null || uri.getPath() == null)
 476                         return false;
 477                 if (uri.getScheme() == null)
 478                         return FS.resolve(new File("."), uri.getPath()).isDirectory(); //$NON-NLS-1$
 479                 return false;
 480         }
 481
 482         private boolean isSSH(final URIish uri) {
 483                 if (!uri.isRemote())
 484                         return false;
 485                 final String scheme = uri.getScheme();
 486                 if ("ssh".equals(scheme)) //$NON-NLS-1$
 487                         return true;
 488                 if ("ssh+git".equals(scheme)) //$NON-NLS-1$
 489                         return true;
 490                 if ("git+ssh".equals(scheme)) //$NON-NLS-1$
 491                         return true;
 492                 if (scheme == null && uri.getHost() != null && uri.getPath() != null)
 493                         return true;
 494                 return false;
 495         }
 496
 497         private String nullString(final String value) {
 498                 if (value == null)
 499                         return null;
 500                 final String v = value.trim();
 501                 return v.length() == 0 ? null : v;
 502         }
 503
 504         private void safeSet(final Text text, final String value) {
 505                 text.setText(value != null ? value : ""); //$NON-NLS-1$
 506         }
 507
 508         private boolean isURISelected() {
 509                 return configuredRemotes == null || presetUri != null
 510                                 || uriButton.getSelection();
 511         }
 512
 513         private void setURI(final URIish u) {
 514                 try {
 515                         eventDepth++;
 516                         if (eventDepth == 1) {
 517                                 uri = u;
 518                                 uriText.setText(uri.toString());
 519                                 checkPage();
 520                         }
 521                 } finally {
 522                         eventDepth--;
 523                 }
 524         }
 525
 526         private List<RemoteConfig> getUsableConfigs(final List<RemoteConfig> remotes) {
 527
 528                 if (remotes == null)
 529                         return null;
 530
 531                 List<RemoteConfig> result = new ArrayList<RemoteConfig>();
 532
 533                 for (RemoteConfig config : remotes)
 534                         if ((sourceSelection && !config.getURIs().isEmpty() || !sourceSelection
 535                                         && (!config.getPushURIs().isEmpty() || !config.getURIs()
 536                                                         .isEmpty())))
 537                                 result.add(config);
 538
 539                 if (!result.isEmpty())
 540                         return result;
 541
 542                 return null;
 543         }
 544
 545         private RemoteConfig selectDefaultRemoteConfig() {
 546                 if (configuredRemotes == null)
 547                         return null;
 548                 for (final RemoteConfig rc : configuredRemotes)
 549                         if (Constants.DEFAULT_REMOTE_NAME.equals(rc.getName()))
 550                                 return rc;
 551                 return configuredRemotes.get(0);
 552         }
 553
 554         private String getTextForRemoteConfig(final RemoteConfig rc) {
 555                 final StringBuilder sb = new StringBuilder(rc.getName());
 556                 sb.append(": "); //$NON-NLS-1$
 557                 boolean first = true;
 558                 List<URIish> uris;
 559                 if (sourceSelection) {
 560                         uris = rc.getURIs();
 561                 } else {
 562                         uris = rc.getPushURIs();
 563                         // if no push URIs are defined, use fetch URIs instead
 564                         if (uris.isEmpty()) {
 565                                 uris = rc.getURIs();
 566                         }
 567                 }
 568
 569                 for (final URIish u : uris) {
 570                         final String uString = u.toString();
 571                         if (first)
 572                                 first = false;
 573                         else {
 574                                 sb.append(", "); //$NON-NLS-1$
 575                                 if (sb.length() + uString.length() > REMOTE_CONFIG_TEXT_MAX_LENGTH) {
 576                                         sb.append("..."); //$NON-NLS-1$
 577                                         break;
 578                                 }
 579                         }
 580                         sb.append(uString);
 581                 }
 582                 return sb.toString();
 583         }
 584
 585         private void checkPage() {
 586                 if (isURISelected()) {
 587                         assert uri != null;
 588                         if (uriText.getText().length() == 0) {
 589                                 selectionIncomplete(null);
 590                                 return;
 591                         }
 592
 593                         try {
 594                                 final URIish finalURI = new URIish(uriText.getText());
 595                                 String proto = finalURI.getScheme();
 596                                 if (proto == null && scheme.getSelectionIndex() >= 0)
 597                                         proto = scheme.getItem(scheme.getSelectionIndex());
 598
 599                                 if (uri.getPath() == null) {
 600                                         selectionIncomplete(NLS.bind(
 601                                                         UIText.RepositorySelectionPage_fieldRequired,
 602                                                         unamp(UIText.RepositorySelectionPage_promptPath),
 603                                                         proto));
 604                                         return;
 605                                 }
 606
 607                                 if (isFile(finalURI)) {
 608                                         String badField = null;
 609                                         if (uri.getHost() != null)
 610                                                 badField = UIText.RepositorySelectionPage_promptHost;
 611                                         else if (uri.getUser() != null)
 612                                                 badField = UIText.RepositorySelectionPage_promptUser;
 613                                         else if (uri.getPass() != null)
 614                                                 badField = UIText.RepositorySelectionPage_promptPassword;
 615                                         if (badField != null) {
 616                                                 selectionIncomplete(NLS
 617                                                                 .bind(
 618                                                                                 UIText.RepositorySelectionPage_fieldNotSupported,
 619                                                                                 unamp(badField), proto));
 620                                                 return;
 621                                         }
 622
 623                                         final File d = FS.resolve(new File("."), uri.getPath()); //$NON-NLS-1$
 624                                         if (!d.exists()) {
 625                                                 selectionIncomplete(NLS.bind(
 626                                                                 UIText.RepositorySelectionPage_fileNotFound, d
 627                                                                                 .getAbsolutePath()));
 628                                                 return;
 629                                         }
 630
 631                                         selectionComplete(finalURI, null);
 632                                         return;
 633                                 }
 634
 635                                 if (uri.getHost() == null) {
 636                                         selectionIncomplete(NLS.bind(
 637                                                         UIText.RepositorySelectionPage_fieldRequired,
 638                                                         unamp(UIText.RepositorySelectionPage_promptHost),
 639                                                         proto));
 640                                         return;
 641                                 }
 642
 643                                 if (isGIT(finalURI)) {
 644                                         String badField = null;
 645                                         if (uri.getUser() != null)
 646                                                 badField = UIText.RepositorySelectionPage_promptUser;
 647                                         else if (uri.getPass() != null)
 648                                                 badField = UIText.RepositorySelectionPage_promptPassword;
 649                                         if (badField != null) {
 650                                                 selectionIncomplete(NLS
 651                                                                 .bind(
 652                                                                                 UIText.RepositorySelectionPage_fieldNotSupported,
 653                                                                                 unamp(badField), proto));
 654                                                 return;
 655                                         }
 656                                 }
 657
 658                                 selectionComplete(finalURI, null);
 659                                 return;
 660                         } catch (URISyntaxException e) {
 661                                 selectionIncomplete(e.getReason());
 662                                 return;
 663                         } catch (Exception e) {
 664                                 Activator.logError(NLS.bind(
 665                                                 UIText.RepositorySelectionPage_errorValidating,
 666                                                 getClass().getName()),
 667                                                 e);
 668                                 selectionIncomplete(UIText.RepositorySelectionPage_internalError);
 669                                 return;
 670                         }
 671                 } else {
 672                         assert remoteButton.getSelection();
 673                         selectionComplete(null, remoteConfig);
 674                         return;
 675                 }
 676         }
 677
 678         private String unamp(String s) {
 679                 return s.replace("&", ""); //$NON-NLS-1$ //$NON-NLS-2$
 680         }
 681
 682         private void selectionIncomplete(final String errorMessage) {
 683                 setExposedSelection(null, null);
 684                 setErrorMessage(errorMessage);
 685                 setPageComplete(false);
 686         }
 687
 688         private void selectionComplete(final URIish u, final RemoteConfig rc) {
 689                 setExposedSelection(u, rc);
 690                 setErrorMessage(null);
 691                 setPageComplete(true);
 692                 notifySelectionChanged();
 693         }
 694
 695         private void setExposedSelection(final URIish u, final RemoteConfig rc) {
 696                 final RepositorySelection newSelection = new RepositorySelection(u, rc);
 697                 if (newSelection.equals(selection))
 698                         return;
 699
 700                 selection = newSelection;
 701                 notifySelectionChanged();
 702         }
 703
 704         private void updateRemoteAndURIPanels() {
 705                 setEnabledRecursively(uriPanel, isURISelected());
 706                 if (uriPanel.getEnabled())
 707                         updateAuthGroup();
 708                 if (configuredRemotes != null)
 709                         setEnabledRecursively(remotePanel, !isURISelected());
 710         }
 711
 712         private void updateAuthGroup() {
 713                 switch (scheme.getSelectionIndex()) {
 714                 case S_GIT:
 715                         hostText.setEnabled(true);
 716                         portText.setEnabled(true);
 717                         setEnabledRecursively(authGroup, false);
 718                         break;
 719                 case S_SSH:
 720                 case S_SFTP:
 721                 case S_HTTP:
 722                 case S_HTTPS:
 723                 case S_FTP:
 724                         hostText.setEnabled(true);
 725                         portText.setEnabled(true);
 726                         setEnabledRecursively(authGroup, true);
 727                         break;
 728                 case S_FILE:
 729                         hostText.setEnabled(false);
 730                         portText.setEnabled(false);
 731                         setEnabledRecursively(authGroup, false);
 732                         break;
 733                 }
 734         }
 735
 736         @Override
 737         public void setVisible(boolean visible) {
 738                 super.setVisible(visible);
 739                 if (visible)
 740                         uriText.setFocus();
 741         }
 742
 743         /**
 744          * Adds a URI string to the list of previously added ones
 745          *
 746          * TODO move this to some proper preferences handling class instead of
 747          * making it static
 748          *
 749          * @param stringToAdd
 750          */
 751         public static void saveUriInPrefs(String stringToAdd) {
 752
 753                 List<String> uriStrings = getUrisFromPrefs();
 754
 755                 if (uriStrings.indexOf(stringToAdd) == 0)
 756                         return;
 757                 uriStrings.add(0, stringToAdd);
 758
 759                 IEclipsePreferences prefs = new InstanceScope().getNode(Activator
 760                                 .getPluginId());
 761
 762                 StringBuilder sb = new StringBuilder();
 763                 StringBuilder lb = new StringBuilder();
 764
 765                 // there is no "good" separator for URIish, so we
 766                 // keep track of the URI lengths separately
 767                 for (String uriString : uriStrings) {
 768                         sb.append(uriString);
 769                         lb.append(uriString.length());
 770                         lb.append(" "); //$NON-NLS-1$
 771                 }
 772                 prefs.put(USED_URIS_PREF, sb.toString());
 773                 prefs.put(USED_URIS_LENGTH_PREF, lb.toString());
 774
 775                 try {
 776                         prefs.flush();
 777                 } catch (BackingStoreException e) {
 778                         // we simply ignore this here
 779                 }
 780         }
 781
 782         /**
 783          * Gets the previously added URIs from the preferences
 784          *
 785          * TODO move this to some proper preferences handling class instead of
 786          * making it static
 787          *
 788          * @return a (possibly empty) list of URIs, never <code>null</code>
 789          */
 790         public static List<String> getUrisFromPrefs() {
 791
 792                 // use a TreeSet to get the same sorting always
 793                 List<String> uriStrings = new ArrayList<String>();
 794
 795                 IEclipsePreferences prefs = new InstanceScope().getNode(Activator
 796                                 .getPluginId());
 797                 // since there is no "good" separator for URIish, so we
 798                 // keep track of the URI lengths separately
 799                 String uriLengths = prefs.get(USED_URIS_LENGTH_PREF, ""); //$NON-NLS-1$
 800                 String uris = prefs.get(USED_URIS_PREF, ""); //$NON-NLS-1$
 801
 802                 StringTokenizer tok = new StringTokenizer(uriLengths, " "); //$NON-NLS-1$
 803                 int offset = 0;
 804                 while (tok.hasMoreTokens()) {
 805                         try {
 806                                 int length = Integer.parseInt(tok.nextToken());
 807                                 if (uris.length() >= (offset + length)) {
 808                                         uriStrings.add(uris.substring(offset, offset + length));
 809                                         offset += length;
 810                                 }
 811                         } catch (NumberFormatException nfe) {
 812                                 // ignore here
 813                         }
 814
 815                 }
 816
 817                 return uriStrings;
 818         }
 819
 820         private void setEnabledRecursively(final Control control,
 821                         final boolean enable) {
 822                 control.setEnabled(enable);
 823                 if (control instanceof Composite)
 824                         for (final Control child : ((Composite) control).getChildren())
 825                                 setEnabledRecursively(child, enable);
 826         }
 827
 828         private void addContentProposalToUriText(Text uriTextField) {
 829
 830                 UIUtils.addBulbDecorator(uriTextField, UIText.RepositorySelectionPage_ShowPreviousURIs_HoverText);
 831
 832                 IContentProposalProvider cp = new IContentProposalProvider() {
 833
 834                         public IContentProposal[] getProposals(String contents, int position) {
 835
 836                                 List<IContentProposal> resultList = new ArrayList<IContentProposal>();
 837
 838                                 String patternString = contents;
 839                                 while (patternString.length() > 0
 840                                                 && patternString.charAt(0) == ' ')
 841                                         patternString = patternString.substring(1);
 842                                 // make the simplest possible pattern check: allow "*"
 843                                 // for multiple characters
 844                                 patternString = patternString.replaceAll("\\x2A", ".*"); //$NON-NLS-1$ //$NON-NLS-2$
 845                                 // make sure we add a (logical) * at the end
 846                                 if (!patternString.endsWith(".*")) { //$NON-NLS-1$
 847                                         patternString = patternString + ".*"; //$NON-NLS-1$
 848                                 }
 849                                 // let's compile a case-insensitive pattern (assumes ASCII only)
 850                                 Pattern pattern;
 851                                 try {
 852                                         pattern = Pattern.compile(patternString,
 853                                                         Pattern.CASE_INSENSITIVE);
 854                                 } catch (PatternSyntaxException e) {
 855                                         pattern = null;
 856                                 }
 857
 858                                 List<String> uriStrings = getUrisFromPrefs();
 859                                 for (final String uriString : uriStrings) {
 860
 861                                         if (pattern != null
 862                                                         && !pattern.matcher(uriString).matches())
 863                                                 continue;
 864
 865                                         IContentProposal propsal = new IContentProposal() {
 866
 867                                                 public String getLabel() {
 868                                                         return null;
 869                                                 }
 870
 871                                                 public String getDescription() {
 872                                                         return null;
 873                                                 }
 874
 875                                                 public int getCursorPosition() {
 876                                                         return 0;
 877                                                 }
 878
 879                                                 public String getContent() {
 880                                                         return uriString;
 881                                                 }
 882                                         };
 883                                         resultList.add(propsal);
 884                                 }
 885
 886                                 return resultList.toArray(new IContentProposal[resultList
 887                                                 .size()]);
 888                         }
 889                 };
 890
 891                 // set the acceptance style to always replace the complete content
 892                 new ContentProposalAdapter(uriTextField, new TextContentAdapter(), cp,
 893                                 null, null)
 894                                 .setProposalAcceptanceStyle(ContentProposalAdapter.PROPOSAL_REPLACE);
 895
 896         }
 897
 898         private void updateFields(final String text) {
 899                 try {
 900                         eventDepth++;
 901                         if (eventDepth != 1)
 902                                 return;
 903
 904                         final URIish u = new URIish(text);
 905                         safeSet(hostText, u.getHost());
 906                         safeSet(pathText, u.getPath());
 907                         safeSet(userText, u.getUser());
 908                         safeSet(passText, u.getPass());
 909
 910                         if (u.getPort() > 0)
 911                                 portText.setText(Integer.toString(u.getPort()));
 912                         else
 913                                 portText.setText(""); //$NON-NLS-1$
 914
 915                         if (isFile(u))
 916                                 scheme.select(S_FILE);
 917                         else if (isSSH(u))
 918                                 scheme.select(S_SSH);
 919                         else {
 920                                 for (int i = 0; i < DEFAULT_SCHEMES.length; i++) {
 921                                         if (DEFAULT_SCHEMES[i].equals(u.getScheme())) {
 922                                                 scheme.select(i);
 923                                                 break;
 924                                         }
 925                                 }
 926                         }
 927
 928                         updateAuthGroup();
 929                         uri = u;
 930                 } catch (URISyntaxException err) {
 931                         // leave uriText as it is, but clean up underlying uri and
 932                         // decomposed fields
 933                         uri = new URIish();
 934                         hostText.setText(""); //$NON-NLS-1$
 935                         pathText.setText(""); //$NON-NLS-1$
 936                         userText.setText(""); //$NON-NLS-1$
 937                         passText.setText(""); //$NON-NLS-1$
 938                         portText.setText(""); //$NON-NLS-1$
 939                         scheme.select(0);
 940                 } finally {
 941                         eventDepth--;
 942                 }
 943                 checkPage();
 944         }
 945 }