platform/vcs-impl/src/com/intellij/openapi/vcs/changes/conflicts/ChangelistConflictAccessProvider.java

   1 package com.intellij.openapi.vcs.changes.conflicts;
   2
   3 import com.intellij.openapi.project.Project;
   4 import com.intellij.openapi.vcs.changes.Change;
   5 import com.intellij.openapi.vcs.changes.ChangeList;
   6 import com.intellij.openapi.vcs.changes.ChangeListManagerImpl;
   7 import com.intellij.openapi.vcs.readOnlyHandler.WritingAccessProvider;
   8 import com.intellij.openapi.vfs.VirtualFile;
   9 import org.jetbrains.annotations.NotNull;
  10
  11 import java.util.ArrayList;
  12 import java.util.Collection;
  13 import java.util.HashSet;
  14 import java.util.Collections;
  15
  16 /**
  17  * @author Dmitry Avdeev
  18  */
  19 public class ChangelistConflictAccessProvider implements WritingAccessProvider {
  20
  21   private final Project myProject;
  22   private final ChangeListManagerImpl myManager;
  23
  24   public ChangelistConflictAccessProvider(Project project, ChangeListManagerImpl manager) {
  25     myProject = project;
  26     myManager = manager;
  27   }
  28
  29   @NotNull
  30   public Collection<VirtualFile> requestWriting(VirtualFile... files) {
  31     ChangelistConflictTracker.Options options = myManager.getConflictTracker().getOptions();
  32     if (!options.TRACKING_ENABLED || !options.SHOW_DIALOG) {
  33       return Collections.emptyList();
  34     }
  35     ArrayList<VirtualFile> denied = new ArrayList<VirtualFile>();
  36     for (VirtualFile file : files) {
  37       if (file != null && !myManager.getConflictTracker().isWritingAllowed(file)) {
  38         denied.add(file);
  39       }
  40     }
  41
  42     if (!denied.isEmpty()) {
  43       HashSet<ChangeList> changeLists = new HashSet<ChangeList>();
  44       ArrayList<Change> changes = new ArrayList<Change>();
  45       for (VirtualFile file : denied) {
  46         changeLists.add(myManager.getChangeList(file));
  47         changes.add(myManager.getChange(file));
  48       }
  49
  50       ChangelistConflictDialog dialog;
  51       do {
  52         dialog = new ChangelistConflictDialog(myProject, new ArrayList<ChangeList>(changeLists), denied);
  53         dialog.show();
  54       } while (dialog.isOK() && !dialog.getResolution().resolveConflict(myProject, changes));
  55
  56       if (dialog.isOK()) {
  57         options.LAST_RESOLUTION = dialog.getResolution();
  58         return Collections.emptyList();
  59       }
  60     }
  61     return denied;
  62   }
  63 }