private void addReplaceActions(final ReplaceContext replaceContext) {
    final Runnable replaceRunnable =
        new Runnable() {
          @Override
          public void run() {
            replaceUsagesUnderCommand(replaceContext, replaceContext.getUsageView().getUsages());
          }
        };
    replaceContext
        .getUsageView()
        .addButtonToLowerPane(replaceRunnable, FindBundle.message("find.replace.all.action"));

    final Runnable replaceSelectedRunnable =
        new Runnable() {
          @Override
          public void run() {
            replaceUsagesUnderCommand(
                replaceContext, replaceContext.getUsageView().getSelectedUsages());
          }
        };

    replaceContext
        .getUsageView()
        .addButtonToLowerPane(
            replaceSelectedRunnable, FindBundle.message("find.replace.selected.action"));
  }
  private boolean ensureUsagesWritable(
      ReplaceContext replaceContext, Collection<Usage> selectedUsages) {
    Set<VirtualFile> readOnlyFiles = null;
    for (final Usage usage : selectedUsages) {
      final VirtualFile file = ((UsageInFile) usage).getFile();

      if (file != null && !file.isWritable()) {
        if (readOnlyFiles == null) readOnlyFiles = new HashSet<VirtualFile>();
        readOnlyFiles.add(file);
      }
    }

    if (readOnlyFiles != null) {
      ReadonlyStatusHandler.getInstance(myProject)
          .ensureFilesWritable(VfsUtilCore.toVirtualFileArray(readOnlyFiles));
    }

    if (hasReadOnlyUsages(selectedUsages)) {
      int result =
          Messages.showOkCancelDialog(
              replaceContext.getUsageView().getComponent(),
              FindBundle.message("find.replace.occurrences.in.read.only.files.prompt"),
              FindBundle.message("find.replace.occurrences.in.read.only.files.title"),
              Messages.getWarningIcon());
      if (result != Messages.OK) {
        return false;
      }
    }
    return true;
  }
  private void addReplaceActions(final ReplaceContext replaceContext) {
    final Runnable replaceRunnable =
        new Runnable() {
          @Override
          public void run() {
            final UsageView usageView = replaceContext.getUsageView();
            final boolean success = doReplace(replaceContext, usageView.getUsages());
            closeUsageViewIfEmpty(usageView, success);
          }
        };
    replaceContext
        .getUsageView()
        .addButtonToLowerPane(replaceRunnable, FindBundle.message("find.replace.all.action"));

    final Runnable replaceSelectedRunnable =
        new Runnable() {
          @Override
          public void run() {
            doReplaceSelected(replaceContext);
          }
        };

    replaceContext
        .getUsageView()
        .addButtonToLowerPane(
            replaceSelectedRunnable, FindBundle.message("find.replace.selected.action"));
  }
  private void doReplaceSelected(final ReplaceContext replaceContext) {
    final Set<Usage> selectedUsages = replaceContext.getUsageView().getSelectedUsages();
    if (selectedUsages == null) {
      return;
    }

    Set<VirtualFile> readOnlyFiles = null;
    for (final Usage usage : selectedUsages) {
      final VirtualFile file = ((UsageInFile) usage).getFile();

      if (file != null && !file.isWritable()) {
        if (readOnlyFiles == null) readOnlyFiles = new HashSet<VirtualFile>();
        readOnlyFiles.add(file);
      }
    }

    if (readOnlyFiles != null) {
      ReadonlyStatusHandler.getInstance(myProject)
          .ensureFilesWritable(VfsUtilCore.toVirtualFileArray(readOnlyFiles));
    }

    if (hasReadOnlyUsages(selectedUsages)) {
      int result =
          Messages.showOkCancelDialog(
              replaceContext.getUsageView().getComponent(),
              FindBundle.message("find.replace.occurrences.in.read.only.files.prompt"),
              FindBundle.message("find.replace.occurrences.in.read.only.files.title"),
              Messages.getWarningIcon());
      if (result != 0) {
        return;
      }
    }

    CommandProcessor.getInstance()
        .executeCommand(
            myProject,
            new Runnable() {
              @Override
              public void run() {
                final boolean success = doReplace(replaceContext, selectedUsages);
                final UsageView usageView = replaceContext.getUsageView();

                if (closeUsageViewIfEmpty(usageView, success)) return;
                usageView.getComponent().requestFocus();
              }
            },
            FindBundle.message("find.replace.command"),
            null);
  }
  private void replaceUsagesUnderCommand(
      @NotNull final ReplaceContext replaceContext, @Nullable final Set<Usage> usagesSet) {
    if (usagesSet == null) {
      return;
    }

    final List<Usage> usages = new ArrayList<Usage>(usagesSet);
    Collections.sort(usages, UsageViewImpl.USAGE_COMPARATOR);

    if (!ensureUsagesWritable(replaceContext, usages)) return;

    CommandProcessor.getInstance()
        .executeCommand(
            myProject,
            new Runnable() {
              @Override
              public void run() {
                final boolean success = replaceUsages(replaceContext, usages);
                final UsageView usageView = replaceContext.getUsageView();

                if (closeUsageViewIfEmpty(usageView, success)) return;
                usageView.getComponent().requestFocus();
              }
            },
            FindBundle.message("find.replace.command"),
            null);

    replaceContext.invalidateExcludedSetCache();
  }
 public static void reportNumberReplacedOccurrences(Project project, int occurrences) {
   if (occurrences != 0) {
     final StatusBar statusBar = WindowManager.getInstance().getStatusBar(project);
     if (statusBar != null) {
       statusBar.setInfo(FindBundle.message("0.occurrences.replaced", occurrences));
     }
   }
 }
  private void replaceWithPrompt(final ReplaceContext replaceContext) {
    final List<Usage> _usages = replaceContext.getUsageView().getSortedUsages();

    if (hasReadOnlyUsages(_usages)) {
      WindowManager.getInstance()
          .getStatusBar(myProject)
          .setInfo(FindBundle.message("find.replace.occurrences.found.in.read.only.files.status"));
      return;
    }

    final Usage[] usages = _usages.toArray(new Usage[_usages.size()]);

    // usageView.expandAll();
    for (int i = 0; i < usages.length; ++i) {
      final Usage usage = usages[i];
      final UsageInfo usageInfo = ((UsageInfo2UsageAdapter) usage).getUsageInfo();

      final PsiElement elt = usageInfo.getElement();
      if (elt == null) continue;
      final PsiFile psiFile = elt.getContainingFile();
      if (!psiFile.isWritable()) continue;

      Runnable selectOnEditorRunnable =
          new Runnable() {
            @Override
            public void run() {
              final VirtualFile virtualFile = psiFile.getVirtualFile();

              if (virtualFile != null
                  && ApplicationManager.getApplication()
                      .runReadAction(
                          new Computable<Boolean>() {
                            @Override
                            public Boolean compute() {
                              return virtualFile.isValid() ? Boolean.TRUE : Boolean.FALSE;
                            }
                          })
                      .booleanValue()) {

                if (usage.isValid()) {
                  usage.highlightInEditor();
                  replaceContext.getUsageView().selectUsages(new Usage[] {usage});
                }
              }
            }
          };

      CommandProcessor.getInstance()
          .executeCommand(
              myProject,
              selectOnEditorRunnable,
              FindBundle.message("find.replace.select.on.editor.command"),
              null);
      String title = FindBundle.message("find.replace.found.usage.title", i + 1, usages.length);

      int result;
      try {
        replaceUsage(
            usage, replaceContext.getFindModel(), replaceContext.getExcludedSetCached(), true);
        result =
            FindManager.getInstance(myProject)
                .showPromptDialog(replaceContext.getFindModel(), title);
      } catch (FindManager.MalformedReplacementStringException e) {
        markAsMalformedReplacement(replaceContext, usage);
        result =
            FindManager.getInstance(myProject)
                .showMalformedReplacementPrompt(replaceContext.getFindModel(), title, e);
      }

      if (result == FindManager.PromptResult.CANCEL) {
        return;
      }
      if (result == FindManager.PromptResult.SKIP) {
        continue;
      }

      final int currentNumber = i;
      if (result == FindManager.PromptResult.OK) {
        final Ref<Boolean> success = Ref.create();
        Runnable runnable =
            new Runnable() {
              @Override
              public void run() {
                success.set(replaceUsageAndRemoveFromView(usage, replaceContext));
              }
            };
        CommandProcessor.getInstance()
            .executeCommand(myProject, runnable, FindBundle.message("find.replace.command"), null);
        if (closeUsageViewIfEmpty(replaceContext.getUsageView(), success.get())) {
          return;
        }
      }

      if (result == FindManager.PromptResult.ALL_IN_THIS_FILE) {
        final int[] nextNumber = new int[1];

        Runnable runnable =
            new Runnable() {
              @Override
              public void run() {
                int j = currentNumber;
                boolean success = true;
                for (; j < usages.length; j++) {
                  final Usage usage = usages[j];
                  final UsageInfo usageInfo = ((UsageInfo2UsageAdapter) usage).getUsageInfo();

                  final PsiElement elt = usageInfo.getElement();
                  if (elt == null) continue;
                  PsiFile otherPsiFile = elt.getContainingFile();
                  if (!otherPsiFile.equals(psiFile)) {
                    break;
                  }
                  if (!replaceUsageAndRemoveFromView(usage, replaceContext)) {
                    success = false;
                  }
                }
                closeUsageViewIfEmpty(replaceContext.getUsageView(), success);
                nextNumber[0] = j;
              }
            };

        CommandProcessor.getInstance()
            .executeCommand(myProject, runnable, FindBundle.message("find.replace.command"), null);

        //noinspection AssignmentToForLoopParameter
        i = nextNumber[0] - 1;
      }

      if (result == FindManager.PromptResult.ALL_FILES) {
        CommandProcessor.getInstance()
            .executeCommand(
                myProject,
                new Runnable() {
                  @Override
                  public void run() {
                    final boolean success = replaceUsages(replaceContext, _usages);
                    closeUsageViewIfEmpty(replaceContext.getUsageView(), success);
                  }
                },
                FindBundle.message("find.replace.command"),
                null);
        break;
      }
    }
  }