org.spearce.egit.ui/src/org/spearce/egit/ui/internal/sharing/ExistingOrNewPage.java

   1 /*******************************************************************************
   2  * Copyright (C) 2009, Robin Rosenberg
   3  *
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * See LICENSE for the full license text, also available.
   7  *******************************************************************************/
   8 package org.spearce.egit.ui.internal.sharing;
   9
  10 import java.io.File;
  11 import java.io.IOException;
  12 import java.util.Collection;
  13 import java.util.Iterator;
  14
  15 import org.eclipse.core.resources.IProject;
  16 import org.eclipse.core.resources.IResource;
  17 import org.eclipse.core.runtime.CoreException;
  18 import org.eclipse.core.runtime.IPath;
  19 import org.eclipse.core.runtime.NullProgressMonitor;
  20 import org.eclipse.core.runtime.Path;
  21 import org.eclipse.jface.dialogs.MessageDialog;
  22 import org.eclipse.jface.layout.GridDataFactory;
  23 import org.eclipse.jface.wizard.WizardPage;
  24 import org.eclipse.swt.SWT;
  25 import org.eclipse.swt.events.SelectionEvent;
  26 import org.eclipse.swt.events.SelectionListener;
  27 import org.eclipse.swt.layout.GridLayout;
  28 import org.eclipse.swt.widgets.Button;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.swt.widgets.Event;
  31 import org.eclipse.swt.widgets.Group;
  32 import org.eclipse.swt.widgets.Listener;
  33 import org.eclipse.swt.widgets.Text;
  34 import org.eclipse.swt.widgets.Tree;
  35 import org.eclipse.swt.widgets.TreeColumn;
  36 import org.eclipse.swt.widgets.TreeItem;
  37 import org.spearce.egit.core.Activator;
  38 import org.spearce.egit.core.project.RepositoryFinder;
  39 import org.spearce.egit.core.project.RepositoryMapping;
  40 import org.spearce.egit.ui.UIIcons;
  41 import org.spearce.egit.ui.UIText;
  42 import org.spearce.jgit.lib.Repository;
  43
  44 /**
  45  * Wizard page for connecting projects to Git repositories.
  46  */
  47 class ExistingOrNewPage extends WizardPage {
  48
  49         private final SharingWizard myWizard;
  50         private Button button;
  51         private Tree tree;
  52         private Text repositoryToCreate;
  53         private IPath minumumPath;
  54
  55         ExistingOrNewPage(SharingWizard w) {
  56                 super(ExistingOrNewPage.class.getName());
  57                 setTitle(UIText.ExistingOrNewPage_title);
  58                 setDescription(UIText.ExistingOrNewPage_description);
  59                 setImageDescriptor(UIIcons.WIZBAN_CONNECT_REPO);
  60                 this.myWizard = w;
  61         }
  62
  63         public void createControl(Composite parent) {
  64                 Group g = new Group(parent, SWT.NONE);
  65                 g.setLayout(new GridLayout(3,false));
  66                 g.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
  67                 tree = new Tree(g, SWT.BORDER|SWT.MULTI);
  68                 tree.setHeaderVisible(true);
  69                 tree.setLayout(new GridLayout());
  70                 tree.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).span(3,1).create());
  71                 TreeColumn c1 = new TreeColumn(tree,SWT.NONE);
  72                 c1.setText(UIText.ExistingOrNewPage_HeaderProject);
  73                 c1.setWidth(100);
  74                 TreeColumn c2 = new TreeColumn(tree,SWT.NONE);
  75                 c2.setText(UIText.ExistingOrNewPage_HeaderPath);
  76                 c2.setWidth(400);
  77                 TreeColumn c3 = new TreeColumn(tree,SWT.NONE);
  78                 c3.setText(UIText.ExistingOrNewPage_HeaderRepository);
  79                 c3.setWidth(200);
  80                 for (IProject project : myWizard.projects) {
  81                         TreeItem treeItem = new TreeItem(tree, SWT.NONE);
  82                         treeItem.setData(project);
  83                         treeItem.setText(0, project.getName());
  84                         treeItem.setText(1, project.getLocation().toOSString());
  85                         RepositoryFinder repositoryFinder = new RepositoryFinder(project);
  86                         Collection<RepositoryMapping> find;
  87                         try {
  88                                 find = repositoryFinder.find(new NullProgressMonitor());
  89                                 if (find.size() == 0)
  90                                         treeItem.setText(2, ""); //$NON-NLS-1$
  91                                 else {
  92                                         Iterator<RepositoryMapping> mi = find.iterator();
  93                                         RepositoryMapping m = mi.next();
  94                                         if (m.getGitDir() == null)
  95                                                 treeItem.setText(2,UIText.ExistingOrNewPage_SymbolicValueEmptyMapping);
  96                                         else
  97                                                 treeItem.setText(2, m.getGitDir());
  98                                         while (mi.hasNext()) {
  99                                                 TreeItem treeItem2 = new TreeItem(treeItem, SWT.NONE);
 100                                                 if (m.getGitDir() == null)
 101                                                         treeItem2.setText(2,UIText.ExistingOrNewPage_SymbolicValueEmptyMapping);
 102                                                 else
 103                                                         treeItem2.setText(2,m.getGitDir());
 104                                         }
 105                                 }
 106                         } catch (CoreException e) {
 107                                 TreeItem treeItem2 = new TreeItem(treeItem, SWT.BOLD|SWT.ITALIC);
 108                                 treeItem2.setText(e.getMessage());
 109                         }
 110                 }
 111
 112                 button = new Button(g, SWT.PUSH);
 113                 button.setLayoutData(GridDataFactory.fillDefaults().create());
 114                 button.setText(UIText.ExistingOrNewPage_CreateButton);
 115                 button.addSelectionListener(new SelectionListener() {
 116                         public void widgetSelected(SelectionEvent e) {
 117                                 File gitDir = new File(repositoryToCreate.getText(),".git");
 118                                 try {
 119                                         Repository repository = new Repository(gitDir);
 120                                         repository.create();
 121                                         for (IProject project : getProjects()) {
 122                                                 // If we don't refresh the project directories right
 123                                                 // now we won't later know that a .git directory
 124                                                 // exists within it and we won't mark the .git
 125                                                 // directory as a team-private member. Failure
 126                                                 // to do so might allow someone to delete
 127                                                 // the .git directory without us stopping them.
 128                                                 // (Half lie, we should optimize so we do not
 129                                                 // refresh when the .git is not within the project)
 130                                                 //
 131                                                 if (!gitDir.toString().contains("..")) //$NON-NLS-1$
 132                                                         project.refreshLocal(IResource.DEPTH_ONE,
 133                                                                         new NullProgressMonitor());
 134                                         }
 135                                 } catch (IOException e1) {
 136                                         MessageDialog.openError(getShell(), UIText.ExistingOrNewPage_ErrorFailedToCreateRepository, gitDir.toString() + ":\n" + e1.getMessage());
 137                                         Activator.logError("Failed to create repository at " + gitDir, e1); //$NON-NLS-1$
 138                                 } catch (CoreException e2) {
 139                                         Activator.logError(UIText.ExistingOrNewPage_ErrorFailedToRefreshRepository + gitDir, e2);
 140                                 }
 141                                 for (TreeItem ti : tree.getSelection()) {
 142                                         ti.setText(2, gitDir.toString());
 143                                 }
 144                                 updateCreateOptions();
 145                                 getContainer().updateButtons();
 146                         }
 147                         public void widgetDefaultSelected(SelectionEvent e) {
 148                         }
 149                 });
 150                 repositoryToCreate = new Text(g, SWT.SINGLE | SWT.BORDER);
 151                 repositoryToCreate.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(1,1).create());
 152                 repositoryToCreate.addListener(SWT.Modify, new Listener() {
 153                         public void handleEvent(Event e) {
 154                                 if (e.text == null)
 155                                         return;
 156                                 IPath fromOSString = Path.fromOSString(e.text);
 157                                 button.setEnabled(minumumPath
 158                                                 .matchingFirstSegments(fromOSString) == fromOSString
 159                                                 .segmentCount());
 160                         }
 161                 });
 162                 Text l = new Text(g,SWT.NONE);
 163                 l.setEnabled(false);
 164                 l.setEditable(false);
 165                 l.setText(File.separatorChar + ".git"); //$NON-NLS-1$
 166                 l.setLayoutData(GridDataFactory.fillDefaults().create());
 167                 tree.addSelectionListener(new SelectionListener() {
 168                         public void widgetSelected(SelectionEvent e) {
 169                                 updateCreateOptions();
 170                         }
 171                         public void widgetDefaultSelected(SelectionEvent e) {
 172                                 // Empty
 173                         }
 174                 });
 175                 updateCreateOptions();
 176                 setControl(g);
 177         }
 178
 179         private void updateCreateOptions() {
 180                 minumumPath = null;
 181                 IPath p = null;
 182                 for (TreeItem ti : tree.getSelection()) {
 183                         String path = ti.getText(2);
 184                         if (!path.equals("")) { //$NON-NLS-1$
 185                                 p = null;
 186                                 break;
 187                         }
 188                         String gitDirParentCandidate = ti.getText(1);
 189                         IPath thisPath = Path.fromOSString(gitDirParentCandidate);
 190                         if (p == null)
 191                                 p = thisPath;
 192                         else {
 193                                 int n = p.matchingFirstSegments(thisPath);
 194                                 p = p.removeLastSegments(p.segmentCount() - n);
 195                         }
 196                 }
 197                 minumumPath = p;
 198                 if (p != null) {
 199                         repositoryToCreate.setText(p.toOSString());
 200                 } else {
 201                         repositoryToCreate.setText(""); //$NON-NLS-1$
 202                 }
 203                 button.setEnabled(p != null);
 204                 repositoryToCreate.setEnabled(p != null);
 205                 getContainer().updateButtons();
 206         }
 207
 208         @Override
 209         public boolean isPageComplete() {
 210                 if (tree.getSelectionCount() == 0)
 211                         return false;
 212                 for (TreeItem ti : tree.getSelection()) {
 213                         String path = ti.getText(2);
 214                         if (path.equals("")) { //$NON-NLS-1$
 215                                 return false;
 216                         }
 217                 }
 218                 return true;
 219         }
 220
 221         public IProject[] getProjects() {
 222                 IProject[] ret = new IProject[tree.getSelection().length];
 223                 for (int i = 0; i < ret.length; ++i)
 224                         ret[i] = (IProject)tree.getSelection()[i].getData();
 225                 return ret;
 226         }
 227 }