@Override
    public void layoutContainer(final Container parent) {
      final int componentCount = parent.getComponentCount();
      if (componentCount == 0) return;
      final EditorEx history = myHistoryViewer;
      final EditorEx editor = componentCount == 2 ? myConsoleEditor : null;

      if (editor == null) {
        parent.getComponent(0).setBounds(parent.getBounds());
        return;
      }

      final Dimension panelSize = parent.getSize();
      if (panelSize.getHeight() <= 0) return;
      final Dimension historySize = history.getContentSize();
      final Dimension editorSize = editor.getContentSize();
      final Dimension newEditorSize = new Dimension();

      // deal with width
      final int width = Math.max(editorSize.width, historySize.width);
      newEditorSize.width = width + editor.getScrollPane().getHorizontalScrollBar().getHeight();
      history.getSoftWrapModel().forceAdditionalColumnsUsage();
      editor
          .getSettings()
          .setAdditionalColumnsCount(
              2 + (width - editorSize.width) / EditorUtil.getSpaceWidth(Font.PLAIN, editor));
      history
          .getSettings()
          .setAdditionalColumnsCount(
              2 + (width - historySize.width) / EditorUtil.getSpaceWidth(Font.PLAIN, history));

      // deal with height
      if (historySize.width == 0) historySize.height = 0;
      final int minHistorySize =
          historySize.height > 0
              ? 2 * history.getLineHeight() + (myShowSeparatorLine ? SEPARATOR_THICKNESS : 0)
              : 0;
      final int minEditorSize = editor.isViewer() ? 0 : editor.getLineHeight();
      final int editorPreferred =
          editor.isViewer() ? 0 : Math.max(minEditorSize, editorSize.height);
      final int historyPreferred = Math.max(minHistorySize, historySize.height);
      if (panelSize.height < minEditorSize) {
        newEditorSize.height = panelSize.height;
      } else if (panelSize.height < editorPreferred) {
        newEditorSize.height = panelSize.height - minHistorySize;
      } else if (panelSize.height < editorPreferred + historyPreferred) {
        newEditorSize.height = editorPreferred;
      } else {
        newEditorSize.height = editorPreferred == 0 ? 0 : panelSize.height - historyPreferred;
      }
      final Dimension newHistorySize =
          new Dimension(width, panelSize.height - newEditorSize.height);

      // apply
      editor
          .getComponent()
          .setBounds(0, newHistorySize.height, panelSize.width, newEditorSize.height);
      myForceScrollToEnd.compareAndSet(false, shouldScrollHistoryToEnd());
      history.getComponent().setBounds(0, 0, panelSize.width, newHistorySize.height);
    }
    @Override
    public Dimension getPreferredSize() {
      if (myPreferredSize == null) {
        int maxLineLength = 0;
        int linesCount = 0;

        for (LineTokenizer lt = new LineTokenizer(myRawText); !lt.atEnd(); lt.advance()) {
          maxLineLength = Math.max(maxLineLength, lt.getLength());
          linesCount++;
        }

        FontMetrics fontMetrics =
            ((EditorImpl) getEditor())
                .getFontMetrics(
                    myTextAttributes != null ? myTextAttributes.getFontType() : Font.PLAIN);
        int preferredHeight = getEditor().getLineHeight() * Math.max(1, linesCount);
        int preferredWidth = fontMetrics.charWidth('m') * maxLineLength;

        Insets insets = getInsets();
        if (insets != null) {
          preferredHeight += insets.top + insets.bottom;
          preferredWidth += insets.left + insets.right;
        }

        myPreferredSize = new Dimension(preferredWidth, preferredHeight);
      }
      return myPreferredSize;
    }
 private static void duplicateHighlighters(
     MarkupModel to, MarkupModel from, int offset, TextRange textRange) {
   for (RangeHighlighter rangeHighlighter : from.getAllHighlighters()) {
     if (!rangeHighlighter.isValid()) continue;
     Object tooltip = rangeHighlighter.getErrorStripeTooltip();
     HighlightInfo highlightInfo =
         tooltip instanceof HighlightInfo ? (HighlightInfo) tooltip : null;
     if (highlightInfo != null) {
       if (highlightInfo.getSeverity() != HighlightSeverity.INFORMATION) continue;
       if (highlightInfo.type.getAttributesKey() == EditorColors.IDENTIFIER_UNDER_CARET_ATTRIBUTES)
         continue;
     }
     final int localOffset = textRange.getStartOffset();
     final int start = Math.max(rangeHighlighter.getStartOffset(), localOffset) - localOffset;
     final int end =
         Math.min(rangeHighlighter.getEndOffset(), textRange.getEndOffset()) - localOffset;
     if (start > end) continue;
     final RangeHighlighter h =
         to.addRangeHighlighter(
             start + offset,
             end + offset,
             rangeHighlighter.getLayer(),
             rangeHighlighter.getTextAttributes(),
             rangeHighlighter.getTargetArea());
     ((RangeHighlighterEx) h)
         .setAfterEndOfLine(((RangeHighlighterEx) rangeHighlighter).isAfterEndOfLine());
   }
 }
 @Override
 @NotNull
 public RangeMarker createRangeMarker(final int startOffset, final int endOffset) {
   ProperTextRange hostRange = injectedToHost(new ProperTextRange(startOffset, endOffset));
   RangeMarker hostMarker = myDelegate.createRangeMarker(hostRange);
   int startShift = Math.max(0, hostToInjected(hostRange.getStartOffset()) - startOffset);
   int endShift = Math.max(0, endOffset - hostToInjected(hostRange.getEndOffset()) - startShift);
   return new RangeMarkerWindow(this, (RangeMarkerEx) hostMarker, startShift, endShift);
 }
 public DocumentWindowImpl(@NotNull DocumentEx delegate, boolean oneLine, @NotNull Place shreds) {
   myDelegate = delegate;
   myOneLine = oneLine;
   synchronized (myLock) {
     myShreds = shreds;
   }
   myPrefixLineCount = Math.max(1, 1 + StringUtil.countNewLines(shreds.get(0).getPrefix()));
   mySuffixLineCount =
       Math.max(1, 1 + StringUtil.countNewLines(shreds.get(shreds.size() - 1).getSuffix()));
 }
Example #6
0
 public static boolean filterEquals(ClassFilter[] filters1, ClassFilter[] filters2) {
   if (filters1.length != filters2.length) {
     return false;
   }
   final Set<ClassFilter> f1 =
       new HashSet<ClassFilter>(Math.max((int) (filters1.length / .75f) + 1, 16));
   final Set<ClassFilter> f2 =
       new HashSet<ClassFilter>(Math.max((int) (filters2.length / .75f) + 1, 16));
   Collections.addAll(f1, filters1);
   Collections.addAll(f2, filters2);
   return f2.equals(f1);
 }
  private void doReplaceString(int startOffset, int endOffset, CharSequence s) {
    assert intersectWithEditable(new TextRange(startOffset, startOffset)) != null;
    assert intersectWithEditable(new TextRange(endOffset, endOffset)) != null;

    List<Pair<TextRange, CharSequence>> hostRangesToModify;
    synchronized (myLock) {
      hostRangesToModify = new ArrayList<Pair<TextRange, CharSequence>>(myShreds.size());

      int offset = startOffset;
      int curRangeStart = 0;
      for (int i = 0; i < myShreds.size(); i++) {
        PsiLanguageInjectionHost.Shred shred = myShreds.get(i);
        curRangeStart += shred.getPrefix().length();
        if (offset < curRangeStart) offset = curRangeStart;
        Segment hostRange = shred.getHostRangeMarker();
        if (hostRange == null) continue;
        int hostRangeLength = hostRange.getEndOffset() - hostRange.getStartOffset();
        TextRange range = TextRange.from(curRangeStart, hostRangeLength);
        if (range.contains(offset)
            || range.getEndOffset() == offset /* in case of inserting at the end*/) {
          TextRange rangeToModify =
              new TextRange(offset, Math.min(range.getEndOffset(), endOffset));
          TextRange hostRangeToModify =
              rangeToModify.shiftRight(hostRange.getStartOffset() - curRangeStart);
          CharSequence toReplace =
              i == myShreds.size() - 1
                      || range.getEndOffset() + shred.getSuffix().length() >= endOffset
                  ? s
                  : s.subSequence(0, Math.min(hostRangeToModify.getLength(), s.length()));
          s = toReplace == s ? "" : s.subSequence(toReplace.length(), s.length());
          hostRangesToModify.add(Pair.create(hostRangeToModify, toReplace));
          offset = rangeToModify.getEndOffset();
        }
        curRangeStart += hostRangeLength;
        curRangeStart += shred.getSuffix().length();
        if (curRangeStart > endOffset) break;
      }
    }

    int delta = 0;
    for (Pair<TextRange, CharSequence> pair : hostRangesToModify) {
      TextRange hostRange = pair.getFirst();
      CharSequence replace = pair.getSecond();

      myDelegate.replaceString(
          hostRange.getStartOffset() + delta, hostRange.getEndOffset() + delta, replace);
      delta -= hostRange.getLength() - replace.length();
    }
  }
  public static void initOffsets(final PsiFile file, final OffsetMap offsetMap) {
    int offset =
        Math.max(
            offsetMap.getOffset(CompletionInitializationContext.SELECTION_END_OFFSET),
            offsetMap.getOffset(CompletionInitializationContext.IDENTIFIER_END_OFFSET));

    PsiElement element = file.findElementAt(offset);
    if (element instanceof PsiWhiteSpace
        && (!element.textContains('\n')
            || CodeStyleSettingsManager.getSettings(file.getProject())
                .getCommonSettings(JavaLanguage.INSTANCE)
                .METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE)) {
      element = file.findElementAt(element.getTextRange().getEndOffset());
    }
    if (element == null) return;

    if (LEFT_PAREN.accepts(element)) {
      offsetMap.addOffset(LPAREN_OFFSET, element.getTextRange().getStartOffset());
      PsiElement list = element.getParent();
      PsiElement last = list.getLastChild();
      if (last instanceof PsiJavaToken
          && ((PsiJavaToken) last).getTokenType() == JavaTokenType.RPARENTH) {
        offsetMap.addOffset(RPAREN_OFFSET, last.getTextRange().getStartOffset());
      }

      offsetMap.addOffset(ARG_LIST_END_OFFSET, list.getTextRange().getEndOffset());
    }
  }
 public static boolean filterEquals(ClassFilter[] filters1, ClassFilter[] filters2) {
   if (filters1.length != filters2.length) {
     return false;
   }
   final Set<ClassFilter> f1 =
       new HashSet<ClassFilter>(Math.max((int) (filters1.length / .75f) + 1, 16));
   final Set<ClassFilter> f2 =
       new HashSet<ClassFilter>(Math.max((int) (filters2.length / .75f) + 1, 16));
   for (ClassFilter filter : filters1) {
     f1.add(filter);
   }
   for (ClassFilter aFilters2 : filters2) {
     f2.add(aFilters2);
   }
   return f2.equals(f1);
 }
 @Override
 @NotNull
 public RangeMarker createRangeMarker(
     final int startOffset, final int endOffset, final boolean surviveOnExternalChange) {
   if (!surviveOnExternalChange) {
     return createRangeMarker(startOffset, endOffset);
   }
   ProperTextRange hostRange = injectedToHost(new ProperTextRange(startOffset, endOffset));
   // todo persistent?
   RangeMarker hostMarker =
       myDelegate.createRangeMarker(
           hostRange.getStartOffset(), hostRange.getEndOffset(), surviveOnExternalChange);
   int startShift = Math.max(0, hostToInjected(hostRange.getStartOffset()) - startOffset);
   int endShift = Math.max(0, endOffset - hostToInjected(hostRange.getEndOffset()) - startShift);
   return new RangeMarkerWindow(this, (RangeMarkerEx) hostMarker, startShift, endShift);
 }
  @Override
  public int injectedToHost(int offset) {
    int offsetInLeftFragment = injectedToHost(offset, true);
    int offsetInRightFragment = injectedToHost(offset, false);
    if (offsetInLeftFragment == offsetInRightFragment) return offsetInLeftFragment;

    // heuristics: return offset closest to the caret
    Editor[] editors = EditorFactory.getInstance().getEditors(getDelegate());
    Editor editor = editors.length == 0 ? null : editors[0];
    if (editor != null) {
      if (editor instanceof EditorWindow) editor = ((EditorWindow) editor).getDelegate();
      int caret = editor.getCaretModel().getOffset();
      return Math.abs(caret - offsetInLeftFragment) < Math.abs(caret - offsetInRightFragment)
          ? offsetInLeftFragment
          : offsetInRightFragment;
    }
    return offsetInLeftFragment;
  }
 private RelativePoint relativePointWithDominantRectangle(
     final JLayeredPane layeredPane, final Rectangle bounds) {
   Dimension preferredSize = getComponent().getPreferredSize();
   if (myDimensionServiceKey != null) {
     final Dimension dimension =
         DimensionService.getInstance().getSize(myDimensionServiceKey, myProject);
     if (dimension != null) {
       preferredSize = dimension;
     }
   }
   final Point leftTopCorner = new Point(bounds.x + bounds.width, bounds.y);
   final Point leftTopCornerScreen = (Point) leftTopCorner.clone();
   SwingUtilities.convertPointToScreen(leftTopCornerScreen, layeredPane);
   final RelativePoint relativePoint;
   if (!ScreenUtil.isOutsideOnTheRightOFScreen(
       new Rectangle(
           leftTopCornerScreen.x,
           leftTopCornerScreen.y,
           preferredSize.width,
           preferredSize.height))) {
     relativePoint = new RelativePoint(layeredPane, leftTopCorner);
   } else {
     if (bounds.x > preferredSize.width) {
       relativePoint =
           new RelativePoint(layeredPane, new Point(bounds.x - preferredSize.width, bounds.y));
     } else {
       setDimensionServiceKey(null); // going to cut width
       Rectangle screen =
           ScreenUtil.getScreenRectangle(leftTopCornerScreen.x, leftTopCornerScreen.y);
       final int spaceOnTheLeft = bounds.x;
       final int spaceOnTheRight = (screen.x + screen.width) - leftTopCornerScreen.x;
       if (spaceOnTheLeft > spaceOnTheRight) {
         relativePoint = new RelativePoint(layeredPane, new Point(0, bounds.y));
         myComponent.setPreferredSize(
             new Dimension(spaceOnTheLeft, Math.max(preferredSize.height, 200)));
       } else {
         relativePoint = new RelativePoint(layeredPane, leftTopCorner);
         myComponent.setPreferredSize(
             new Dimension(spaceOnTheRight, Math.max(preferredSize.height, 200)));
       }
     }
   }
   return relativePoint;
 }
 @Override
 public Dimension preferredLayoutSize(final Container parent) {
   Dimension result = new Dimension();
   for (int i = 0; i < parent.getComponentCount(); i++) {
     final Dimension prefSize = parent.getComponent(i).getPreferredSize();
     result.width += prefSize.width;
     result.height = Math.max(prefSize.height, result.height);
   }
   return result;
 }
 public void registerFix(
     @Nullable IntentionAction action,
     @Nullable List<IntentionAction> options,
     @Nullable String displayName,
     @Nullable TextRange fixRange,
     @Nullable HighlightDisplayKey key) {
   if (action == null) return;
   if (fixRange == null) fixRange = new TextRange(startOffset, endOffset);
   if (quickFixActionRanges == null) {
     quickFixActionRanges = ContainerUtil.createLockFreeCopyOnWriteList();
   }
   IntentionActionDescriptor desc =
       new IntentionActionDescriptor(action, options, displayName, null, key, getProblemGroup());
   quickFixActionRanges.add(Pair.create(desc, fixRange));
   fixStartOffset = Math.min(fixStartOffset, fixRange.getStartOffset());
   fixEndOffset = Math.max(fixEndOffset, fixRange.getEndOffset());
   if (action instanceof HintAction) {
     setHint(true);
   }
 }
 private void commitToOriginalInner() {
   final String text = myNewDocument.getText();
   final Map<
           PsiLanguageInjectionHost,
           Set<Trinity<RangeMarker, RangeMarker, SmartPsiElementPointer>>>
       map =
           ContainerUtil.classify(
               myMarkers.iterator(),
               new Convertor<
                   Trinity<RangeMarker, RangeMarker, SmartPsiElementPointer>,
                   PsiLanguageInjectionHost>() {
                 @Override
                 public PsiLanguageInjectionHost convert(
                     final Trinity<RangeMarker, RangeMarker, SmartPsiElementPointer> o) {
                   final PsiElement element = o.third.getElement();
                   return (PsiLanguageInjectionHost) element;
                 }
               });
   PsiDocumentManager documentManager = PsiDocumentManager.getInstance(myProject);
   documentManager.commitDocument(myOrigDocument); // commit here and after each manipulator update
   int localInsideFileCursor = 0;
   for (PsiLanguageInjectionHost host : map.keySet()) {
     if (host == null) continue;
     String hostText = host.getText();
     ProperTextRange insideHost = null;
     StringBuilder sb = new StringBuilder();
     for (Trinity<RangeMarker, RangeMarker, SmartPsiElementPointer> entry : map.get(host)) {
       RangeMarker origMarker = entry.first; // check for validity?
       int hostOffset = host.getTextRange().getStartOffset();
       ProperTextRange localInsideHost =
           new ProperTextRange(
               origMarker.getStartOffset() - hostOffset, origMarker.getEndOffset() - hostOffset);
       RangeMarker rangeMarker = entry.second;
       ProperTextRange localInsideFile =
           new ProperTextRange(
               Math.max(localInsideFileCursor, rangeMarker.getStartOffset()),
               rangeMarker.getEndOffset());
       if (insideHost != null) {
         // append unchanged inter-markers fragment
         sb.append(
             hostText.substring(insideHost.getEndOffset(), localInsideHost.getStartOffset()));
       }
       sb.append(
           localInsideFile.getEndOffset() <= text.length() && !localInsideFile.isEmpty()
               ? localInsideFile.substring(text)
               : "");
       localInsideFileCursor = localInsideFile.getEndOffset();
       insideHost = insideHost == null ? localInsideHost : insideHost.union(localInsideHost);
     }
     assert insideHost != null;
     ElementManipulators.getManipulator(host).handleContentChange(host, insideHost, sb.toString());
     documentManager.commitDocument(myOrigDocument);
   }
 }
  @Override
  public int getLineNumber(int offset) {
    int lineNumber = 0;
    String hostText = myDelegate.getText();
    synchronized (myLock) {
      for (PsiLanguageInjectionHost.Shred shred : myShreds) {
        String prefix = shred.getPrefix();
        String suffix = shred.getSuffix();
        lineNumber +=
            StringUtil.getLineBreakCount(prefix.substring(0, Math.min(offset, prefix.length())));
        if (offset < prefix.length()) {
          return lineNumber;
        }
        offset -= prefix.length();

        Segment currentRange = shred.getHostRangeMarker();
        if (currentRange == null) continue;
        int rangeLength = currentRange.getEndOffset() - currentRange.getStartOffset();
        CharSequence rangeText =
            hostText.subSequence(currentRange.getStartOffset(), currentRange.getEndOffset());

        lineNumber +=
            StringUtil.getLineBreakCount(rangeText.subSequence(0, Math.min(offset, rangeLength)));
        if (offset < rangeLength) {
          return lineNumber;
        }
        offset -= rangeLength;

        lineNumber +=
            StringUtil.getLineBreakCount(suffix.substring(0, Math.min(offset, suffix.length())));
        if (offset < suffix.length()) {
          return lineNumber;
        }

        offset -= suffix.length();
      }
    }
    lineNumber = getLineCount() - 1;
    return lineNumber < 0 ? 0 : lineNumber;
  }
 private void performRemove() {
   final int selectedRow = myInjectionsTable.getSelectedRow();
   if (selectedRow < 0) return;
   final List<InjInfo> selected = getSelectedInjections();
   for (InjInfo info : selected) {
     if (info.bundled) continue;
     info.cfgInfo.injectionInfos.remove(info);
   }
   myInjectionsTable.getListTableModel().setItems(getInjInfoList(myInfos));
   final int index =
       Math.min(myInjectionsTable.getListTableModel().getRowCount() - 1, selectedRow);
   myInjectionsTable.getSelectionModel().setSelectionInterval(index, index);
   TableUtil.scrollSelectionToVisible(myInjectionsTable);
   updateCountLabel();
 }
 private static void adjustIndentationInRange(
     final PsiFile file,
     final Document document,
     final TextRange[] indents,
     final int indentAdjustment) {
   final CharSequence charsSequence = document.getCharsSequence();
   for (final TextRange indent : indents) {
     final String oldIndentStr =
         charsSequence.subSequence(indent.getStartOffset() + 1, indent.getEndOffset()).toString();
     final int oldIndent =
         IndentHelperImpl.getIndent(file.getProject(), file.getFileType(), oldIndentStr, true);
     final String newIndentStr =
         IndentHelperImpl.fillIndent(
             file.getProject(), file.getFileType(), Math.max(oldIndent + indentAdjustment, 0));
     document.replaceString(indent.getStartOffset() + 1, indent.getEndOffset(), newIndentStr);
   }
 }
  @Override
  public void deleteString(final int startOffset, final int endOffset) {
    assert intersectWithEditable(new TextRange(startOffset, startOffset)) != null;
    assert intersectWithEditable(new TextRange(endOffset, endOffset)) != null;

    List<TextRange> hostRangesToDelete;
    synchronized (myLock) {
      hostRangesToDelete = new ArrayList<TextRange>(myShreds.size());

      int offset = startOffset;
      int curRangeStart = 0;
      for (PsiLanguageInjectionHost.Shred shred : myShreds) {
        curRangeStart += shred.getPrefix().length();
        if (offset < curRangeStart) offset = curRangeStart;
        if (offset >= endOffset) break;
        Segment hostRange = shred.getHostRangeMarker();
        if (hostRange == null) continue;
        int hostRangeLength = hostRange.getEndOffset() - hostRange.getStartOffset();
        TextRange range = TextRange.from(curRangeStart, hostRangeLength);
        if (range.contains(offset)) {
          TextRange rangeToDelete =
              new TextRange(offset, Math.min(range.getEndOffset(), endOffset));
          hostRangesToDelete.add(
              rangeToDelete.shiftRight(hostRange.getStartOffset() - curRangeStart));
          offset = rangeToDelete.getEndOffset();
        }
        curRangeStart += hostRangeLength;
        curRangeStart += shred.getSuffix().length();
      }
    }

    int delta = 0;
    for (TextRange hostRangeToDelete : hostRangesToDelete) {
      myDelegate.deleteString(
          hostRangeToDelete.getStartOffset() + delta, hostRangeToDelete.getEndOffset() + delta);
      delta -= hostRangeToDelete.getLength();
    }
  }
  private List<PostponedAction> normalizeAndReorderPostponedActions(
      final TreeSet<PostprocessFormattingTask> rangesToProcess, Document document) {
    final List<PostprocessFormattingTask> freeFormatingActions =
        new ArrayList<PostprocessFormattingTask>();
    final List<ReindentTask> indentActions = new ArrayList<ReindentTask>();

    PostprocessFormattingTask accumulatedTask = null;
    Iterator<PostprocessFormattingTask> iterator = rangesToProcess.iterator();
    while (iterator.hasNext()) {
      final PostprocessFormattingTask currentTask = iterator.next();
      if (accumulatedTask == null) {
        accumulatedTask = currentTask;
        iterator.remove();
      } else if (accumulatedTask.getStartOffset() > currentTask.getEndOffset()
          || accumulatedTask.getStartOffset() == currentTask.getEndOffset()
              && !canStickActionsTogether(accumulatedTask, currentTask)) {
        // action can be pushed
        if (accumulatedTask instanceof ReindentTask) {
          indentActions.add((ReindentTask) accumulatedTask);
        } else {
          freeFormatingActions.add(accumulatedTask);
        }

        accumulatedTask = currentTask;
        iterator.remove();
      } else if (accumulatedTask instanceof ReformatTask && currentTask instanceof ReindentTask) {
        // split accumulated reformat range into two
        if (accumulatedTask.getStartOffset() < currentTask.getStartOffset()) {
          final RangeMarker endOfRange =
              document.createRangeMarker(
                  accumulatedTask.getStartOffset(), currentTask.getStartOffset());
          // add heading reformat part
          rangesToProcess.add(new ReformatTask(endOfRange));
          // and manage heading whitespace because formatter does not edit it in previous action
          iterator = rangesToProcess.iterator();
          //noinspection StatementWithEmptyBody
          while (iterator.next().getRange() != currentTask.getRange()) ;
        }
        final RangeMarker rangeToProcess =
            document.createRangeMarker(currentTask.getEndOffset(), accumulatedTask.getEndOffset());
        freeFormatingActions.add(new ReformatWithHeadingWhitespaceTask(rangeToProcess));
        accumulatedTask = currentTask;
        iterator.remove();
      } else {
        if (!(accumulatedTask instanceof ReindentTask)) {
          iterator.remove();

          boolean withLeadingWhitespace =
              accumulatedTask instanceof ReformatWithHeadingWhitespaceTask;
          if (accumulatedTask instanceof ReformatTask
              && currentTask instanceof ReformatWithHeadingWhitespaceTask
              && accumulatedTask.getStartOffset() == currentTask.getStartOffset()) {
            withLeadingWhitespace = true;
          } else if (accumulatedTask instanceof ReformatWithHeadingWhitespaceTask
              && currentTask instanceof ReformatTask
              && accumulatedTask.getStartOffset() < currentTask.getStartOffset()) {
            withLeadingWhitespace = false;
          }
          int newStart = Math.min(accumulatedTask.getStartOffset(), currentTask.getStartOffset());
          int newEnd = Math.max(accumulatedTask.getEndOffset(), currentTask.getEndOffset());
          RangeMarker rangeMarker;

          if (accumulatedTask.getStartOffset() == newStart
              && accumulatedTask.getEndOffset() == newEnd) {
            rangeMarker = accumulatedTask.getRange();
          } else if (currentTask.getStartOffset() == newStart
              && currentTask.getEndOffset() == newEnd) {
            rangeMarker = currentTask.getRange();
          } else {
            rangeMarker = document.createRangeMarker(newStart, newEnd);
          }

          if (withLeadingWhitespace) {
            accumulatedTask = new ReformatWithHeadingWhitespaceTask(rangeMarker);
          } else {
            accumulatedTask = new ReformatTask(rangeMarker);
          }
        } else if (currentTask instanceof ReindentTask) {
          iterator.remove();
        } // TODO[ik]: need to be fixed to correctly process indent inside indent
      }
    }
    if (accumulatedTask != null) {
      if (accumulatedTask instanceof ReindentTask) {
        indentActions.add((ReindentTask) accumulatedTask);
      } else {
        freeFormatingActions.add(accumulatedTask);
      }
    }

    final List<PostponedAction> result = new ArrayList<PostponedAction>();
    Collections.reverse(freeFormatingActions);
    Collections.reverse(indentActions);

    if (!freeFormatingActions.isEmpty()) {
      FormatTextRanges ranges = new FormatTextRanges();
      for (PostprocessFormattingTask action : freeFormatingActions) {
        TextRange range = TextRange.create(action);
        ranges.add(range, action instanceof ReformatWithHeadingWhitespaceTask);
      }
      result.add(new ReformatRangesAction(ranges));
    }

    if (!indentActions.isEmpty()) {
      ReindentRangesAction reindentRangesAction = new ReindentRangesAction();
      for (ReindentTask action : indentActions) {
        reindentRangesAction.add(action.getRange(), action.getOldIndent());
      }
      result.add(reindentRangesAction);
    }

    return result;
  }
  private void collectHighlights(
      @NotNull final List<PsiElement> elements1,
      @NotNull final Runnable after1,
      @NotNull final List<PsiElement> elements2,
      @NotNull final ProgressIndicator progress,
      @NotNull final HighlightVisitor[] visitors,
      @NotNull final Set<HighlightInfo> gotHighlights,
      final boolean forceHighlightParents) {
    final Set<PsiElement> skipParentsSet = new THashSet<PsiElement>();

    // TODO - add color scheme to holder
    final HighlightInfoHolder holder = createInfoHolder(myFile);

    final int chunkSize =
        Math.max(1, (elements1.size() + elements2.size()) / 100); // one percent precision is enough

    final Runnable action =
        new Runnable() {
          @Override
          public void run() {
            //noinspection unchecked
            boolean failed = false;
            for (List<PsiElement> elements : new List[] {elements1, elements2}) {
              int nextLimit = chunkSize;
              for (int i = 0; i < elements.size(); i++) {
                PsiElement element = elements.get(i);
                progress.checkCanceled();

                if (element != myFile
                    && !skipParentsSet.isEmpty()
                    && element.getFirstChild() != null
                    && skipParentsSet.contains(element)) {
                  skipParentsSet.add(element.getParent());
                  continue;
                }

                if (element instanceof PsiErrorElement) {
                  myHasErrorElement = true;
                }
                holder.clear();

                for (final HighlightVisitor visitor : visitors) {
                  try {
                    visitor.visit(element);
                  } catch (ProcessCanceledException e) {
                    throw e;
                  } catch (IndexNotReadyException e) {
                    throw e;
                  } catch (WolfTheProblemSolverImpl.HaveGotErrorException e) {
                    throw e;
                  } catch (Exception e) {
                    if (!failed) {
                      LOG.error(e);
                    }
                    failed = true;
                  }
                }

                if (i == nextLimit) {
                  advanceProgress(chunkSize);
                  nextLimit = i + chunkSize;
                }

                //noinspection ForLoopReplaceableByForEach
                for (int j = 0; j < holder.size(); j++) {
                  final HighlightInfo info = holder.get(j);
                  assert info != null;
                  // have to filter out already obtained highlights
                  if (!gotHighlights.add(info)) continue;
                  boolean isError = info.getSeverity() == HighlightSeverity.ERROR;
                  if (isError) {
                    if (!forceHighlightParents) {
                      skipParentsSet.add(element.getParent());
                    }
                    myErrorFound = true;
                  }
                  myTransferToEDTQueue.offer(Pair.create(info, progress));
                }
              }
              advanceProgress(elements.size() - (nextLimit - chunkSize));
              if (elements == elements1) after1.run();
            }
          }
        };

    analyzeByVisitors(progress, visitors, holder, 0, action);
  }
  protected String addTextRangeToHistory(
      TextRange textRange, final EditorEx consoleEditor, boolean preserveMarkup) {
    final Document history = myHistoryViewer.getDocument();
    final MarkupModel markupModel = DocumentMarkupModel.forDocument(history, myProject, true);
    if (myPrompt != null) {
      appendToHistoryDocument(history, myPrompt);
    }
    markupModel.addRangeHighlighter(
        history.getTextLength() - StringUtil.length(myPrompt),
        history.getTextLength(),
        HighlighterLayer.SYNTAX,
        ConsoleViewContentType.USER_INPUT.getAttributes(),
        HighlighterTargetArea.EXACT_RANGE);
    final int localStartOffset = textRange.getStartOffset();
    String text;
    EditorHighlighter highlighter;
    if (consoleEditor instanceof EditorWindow) {
      EditorWindow editorWindow = (EditorWindow) consoleEditor;
      EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
      PsiFile file = editorWindow.getInjectedFile();
      final VirtualFile virtualFile = file.getVirtualFile();
      assert virtualFile != null;
      highlighter = HighlighterFactory.createHighlighter(virtualFile, scheme, getProject());
      String fullText = InjectedLanguageUtil.getUnescapedText(file, null, null);
      highlighter.setText(fullText);
      text = textRange.substring(fullText);
    } else {
      text = consoleEditor.getDocument().getText(textRange);
      highlighter = consoleEditor.getHighlighter();
    }
    // offset can be changed after text trimming after insert due to buffer constraints
    appendToHistoryDocument(history, text);
    int offset = history.getTextLength() - text.length();

    final HighlighterIterator iterator = highlighter.createIterator(localStartOffset);
    final int localEndOffset = textRange.getEndOffset();
    while (!iterator.atEnd()) {
      final int itStart = iterator.getStart();
      if (itStart > localEndOffset) break;
      final int itEnd = iterator.getEnd();
      if (itEnd >= localStartOffset) {
        final int start = Math.max(itStart, localStartOffset) - localStartOffset + offset;
        final int end = Math.min(itEnd, localEndOffset) - localStartOffset + offset;
        markupModel.addRangeHighlighter(
            start,
            end,
            HighlighterLayer.SYNTAX,
            iterator.getTextAttributes(),
            HighlighterTargetArea.EXACT_RANGE);
      }
      iterator.advance();
    }
    if (preserveMarkup) {
      duplicateHighlighters(
          markupModel,
          DocumentMarkupModel.forDocument(consoleEditor.getDocument(), myProject, true),
          offset,
          textRange);
      duplicateHighlighters(markupModel, consoleEditor.getMarkupModel(), offset, textRange);
    }
    if (!text.endsWith("\n")) {
      appendToHistoryDocument(history, "\n");
    }
    return text;
  }
  public void show(Component owner, int aScreenX, int aScreenY, final boolean considerForcedXY) {
    if (ApplicationManagerEx.getApplicationEx() != null
        && ApplicationManager.getApplication().isHeadlessEnvironment()) return;
    if (isDisposed()) {
      throw new IllegalStateException(
          "Popup was already disposed. Recreate a new instance to show again");
    }

    assert ApplicationManager.getApplication().isDispatchThread();

    addActivity();

    final boolean shouldShow = beforeShow();
    if (!shouldShow) {
      removeActivity();
      return;
    }

    prepareToShow();

    if (myInStack) {
      myFocusTrackback = new FocusTrackback(this, owner, true);
      myFocusTrackback.setMustBeShown(true);
    }

    Dimension sizeToSet = null;

    if (myDimensionServiceKey != null) {
      sizeToSet = DimensionService.getInstance().getSize(myDimensionServiceKey, myProject);
    }

    if (myForcedSize != null) {
      sizeToSet = myForcedSize;
    }

    if (myMinSize == null) {
      myMinSize = myContent.getMinimumSize();
    }

    if (sizeToSet == null) {
      sizeToSet = myContent.getPreferredSize();
    }

    if (sizeToSet != null) {
      sizeToSet.width = Math.max(sizeToSet.width, myMinSize.width);
      sizeToSet.height = Math.max(sizeToSet.height, myMinSize.height);

      myContent.setSize(sizeToSet);
      myContent.setPreferredSize(sizeToSet);
    }

    Point xy = new Point(aScreenX, aScreenY);
    boolean adjustXY = true;
    if (myDimensionServiceKey != null) {
      final Point storedLocation =
          DimensionService.getInstance().getLocation(myDimensionServiceKey, myProject);
      if (storedLocation != null) {
        xy = storedLocation;
        adjustXY = false;
      }
    }

    if (adjustXY) {
      final Insets insets = myContent.getInsets();
      if (insets != null) {
        xy.x -= insets.left;
        xy.y -= insets.top;
      }
    }

    if (considerForcedXY && myForcedLocation != null) {
      xy = myForcedLocation;
    }

    if (myLocateByContent) {
      final Dimension captionSize = myHeaderPanel.getPreferredSize();
      xy.y -= captionSize.height;
    }

    Rectangle targetBounds = new Rectangle(xy, myContent.getPreferredSize());
    Insets insets = myPopupBorder.getBorderInsets(myContent);
    if (insets != null) {
      targetBounds.x += insets.left;
      targetBounds.y += insets.top;
    }

    Rectangle original = new Rectangle(targetBounds);
    if (myLocateWithinScreen) {
      ScreenUtil.moveRectangleToFitTheScreen(targetBounds);
    }

    if (myMouseOutCanceller != null) {
      myMouseOutCanceller.myEverEntered = targetBounds.equals(original);
    }

    myOwner = IdeFrameImpl.findNearestModalComponent(owner);
    if (myOwner == null) {
      myOwner = owner;
    }

    myRequestorComponent = owner;

    boolean forcedDialog = (SystemInfo.isMac && !(myOwner instanceof IdeFrame)) || myMayBeParent;

    PopupComponent.Factory factory = getFactory(myForcedHeavyweight || myResizable, forcedDialog);
    myNativePopup = factory.isNativePopup();
    myPopup = factory.getPopup(myOwner, myContent, targetBounds.x, targetBounds.y);

    if (myResizable) {
      final JRootPane root = myContent.getRootPane();
      final IdeGlassPaneImpl glass = new IdeGlassPaneImpl(root);
      root.setGlassPane(glass);

      final ResizeComponentListener resizeListener = new ResizeComponentListener(this, glass);
      glass.addMousePreprocessor(resizeListener, this);
      glass.addMouseMotionPreprocessor(resizeListener, this);
    }

    if (myCaption != null && myMovable) {
      final MoveComponentListener moveListener =
          new MoveComponentListener(myCaption) {
            public void mousePressed(final MouseEvent e) {
              super.mousePressed(e);
              if (e.isConsumed()) return;

              if (UIUtil.isCloseClick(e)) {
                if (myCaption.isWithinPanel(e)) {
                  cancel();
                }
              }
            }
          };
      ListenerUtil.addMouseListener(myCaption, moveListener);
      ListenerUtil.addMouseMotionListener(myCaption, moveListener);
      final MyContentPanel saved = myContent;
      Disposer.register(
          this,
          new Disposable() {
            public void dispose() {
              ListenerUtil.removeMouseListener(saved, moveListener);
              ListenerUtil.removeMouseMotionListener(saved, moveListener);
            }
          });
    }

    for (JBPopupListener listener : myListeners) {
      listener.beforeShown(new LightweightWindowEvent(this));
    }

    myPopup.setRequestFocus(myRequestFocus);
    myPopup.show();

    final Window window = SwingUtilities.getWindowAncestor(myContent);

    myWindowListener = new MyWindowListener();
    window.addWindowListener(myWindowListener);

    if (myFocusable) {
      window.setFocusableWindowState(true);
      window.setFocusable(true);
    }

    myWindow = updateMaskAndAlpha(window);

    if (myWindow instanceof JWindow) {
      ((JWindow) myWindow).getRootPane().putClientProperty(KEY, this);
    }

    if (myWindow != null) {
      // dialogwrapper-based popups do this internally through peer,
      // for other popups like jdialog-based we should exclude them manually, but
      // we still have to be able to use IdeFrame as parent
      if (!myMayBeParent && !(myWindow instanceof Frame)) {
        WindowManager.getInstance().doNotSuggestAsParent(myWindow);
      }
    }

    final Runnable afterShow =
        new Runnable() {
          public void run() {
            if (myPreferredFocusedComponent != null && myInStack && myFocusable) {
              myFocusTrackback.registerFocusComponent(myPreferredFocusedComponent);
            }

            removeActivity();

            afterShow();
          }
        };

    if (myRequestFocus) {
      getFocusManager()
          .requestFocus(
              new FocusCommand() {
                @Override
                public ActionCallback run() {
                  if (isDisposed()) {
                    removeActivity();
                    return new ActionCallback.Done();
                  }

                  _requestFocus();

                  final ActionCallback result = new ActionCallback();

                  final Runnable afterShowRunnable =
                      new Runnable() {
                        @Override
                        public void run() {
                          afterShow.run();
                          result.setDone();
                        }
                      };
                  if (myNativePopup) {
                    final FocusRequestor furtherRequestor = getFocusManager().getFurtherRequestor();
                    SwingUtilities.invokeLater(
                        new Runnable() {
                          @Override
                          public void run() {
                            if (isDisposed()) {
                              result.setRejected();
                              return;
                            }

                            furtherRequestor
                                .requestFocus(
                                    new FocusCommand() {
                                      @Override
                                      public ActionCallback run() {
                                        if (isDisposed()) {
                                          return new ActionCallback.Rejected();
                                        }

                                        _requestFocus();

                                        afterShowRunnable.run();

                                        return new ActionCallback.Done();
                                      }
                                    },
                                    true)
                                .notify(result)
                                .doWhenProcessed(
                                    new Runnable() {
                                      @Override
                                      public void run() {
                                        removeActivity();
                                      }
                                    });
                          }
                        });
                  } else {
                    afterShowRunnable.run();
                  }

                  return result;
                }
              },
              true)
          .doWhenRejected(
              new Runnable() {
                @Override
                public void run() {
                  afterShow.run();
                }
              });
    } else {
      SwingUtilities.invokeLater(
          new Runnable() {
            @Override
            public void run() {
              if (isDisposed()) {
                removeActivity();
                return;
              }

              afterShow.run();
            }
          });
    }
  }
Example #24
0
    @Override
    @SuppressWarnings("deprecation")
    public void show() {
      myFocusTrackback = new FocusTrackback(getDialogWrapper(), getParent(), true);

      final DialogWrapper dialogWrapper = getDialogWrapper();
      boolean isAutoAdjustable = dialogWrapper.isAutoAdjustable();
      Point location = null;
      if (isAutoAdjustable) {
        pack();

        Dimension packedSize = getSize();
        Dimension minSize = getMinimumSize();
        setSize(
            Math.max(packedSize.width, minSize.width), Math.max(packedSize.height, minSize.height));

        setSize(
            (int) (getWidth() * dialogWrapper.getHorizontalStretch()),
            (int) (getHeight() * dialogWrapper.getVerticalStretch()));

        // Restore dialog's size and location

        myDimensionServiceKey = dialogWrapper.getDimensionKey();

        if (myDimensionServiceKey != null) {
          final Project projectGuess =
              CommonDataKeys.PROJECT.getData(DataManager.getInstance().getDataContext(this));
          location =
              DimensionService.getInstance().getLocation(myDimensionServiceKey, projectGuess);
          Dimension size =
              DimensionService.getInstance().getSize(myDimensionServiceKey, projectGuess);
          if (size != null) {
            myInitialSize = new Dimension(size);
            _setSizeForLocation(myInitialSize.width, myInitialSize.height, location);
          }
        }

        if (myInitialSize == null) {
          myInitialSize = getSize();
        }
      }

      if (location == null) {
        location = dialogWrapper.getInitialLocation();
      }

      if (location != null) {
        setLocation(location);
      } else {
        setLocationRelativeTo(getOwner());
      }

      if (isAutoAdjustable) {
        final Rectangle bounds = getBounds();
        ScreenUtil.fitToScreen(bounds);
        setBounds(bounds);
      }
      addWindowListener(
          new WindowAdapter() {
            @Override
            public void windowActivated(WindowEvent e) {
              final DialogWrapper wrapper = getDialogWrapper();
              if (wrapper != null && myFocusTrackback != null) {
                myFocusTrackback.cleanParentWindow();
                myFocusTrackback.registerFocusComponent(
                    new FocusTrackback.ComponentQuery() {
                      @Override
                      public Component getComponent() {
                        return wrapper.getPreferredFocusedComponent();
                      }
                    });
              }
            }

            @Override
            public void windowDeactivated(WindowEvent e) {
              if (!isModal()) {
                final Ref<IdeFocusManager> focusManager = new Ref<IdeFocusManager>(null);
                Project project = getProject();
                if (project != null && !project.isDisposed()) {
                  focusManager.set(getFocusManager());
                  focusManager
                      .get()
                      .doWhenFocusSettlesDown(
                          new Runnable() {
                            @Override
                            public void run() {
                              disposeFocusTrackbackIfNoChildWindowFocused(focusManager.get());
                            }
                          });
                } else {
                  disposeFocusTrackbackIfNoChildWindowFocused(focusManager.get());
                }
              }
            }

            @Override
            public void windowOpened(WindowEvent e) {
              if (!SystemInfo.isMacOSLion) return;
              Window window = e.getWindow();
              if (window instanceof Dialog) {
                ID _native = MacUtil.findWindowForTitle(((Dialog) window).getTitle());
                if (_native != null && _native.intValue() > 0) {
                  // see MacMainFrameDecorator
                  // NSCollectionBehaviorFullScreenAuxiliary = 1 << 8
                  Foundation.invoke(_native, "setCollectionBehavior:", 1 << 8);
                }
              }
            }
          });

      if (Registry.is("actionSystem.fixLostTyping")) {
        final IdeEventQueue queue = IdeEventQueue.getInstance();
        if (queue != null) {
          queue.getKeyEventDispatcher().resetState();
        }

        // if (myProject != null) {
        //   Project project = myProject.get();
        // if (project != null && !project.isDisposed() && project.isInitialized()) {
        // // IdeFocusManager.findInstanceByComponent(this).requestFocus(new
        // MyFocusCommand(dialogWrapper), true);
        // }
        // }
      }

      if (SystemInfo.isMac
          && myProject != null
          && Registry.is("ide.mac.fix.dialog.showing")
          && !dialogWrapper.isModalProgress()) {
        final IdeFrame frame = WindowManager.getInstance().getIdeFrame(myProject.get());
        AppIcon.getInstance().requestFocus(frame);
      }

      setBackground(UIUtil.getPanelBackground());

      final ApplicationEx app = ApplicationManagerEx.getApplicationEx();
      if (app != null && !app.isLoaded() && Splash.BOUNDS != null) {
        final Point loc = getLocation();
        loc.y = Splash.BOUNDS.y + Splash.BOUNDS.height;
        setLocation(loc);
      }
      super.show();
    }
  public JComponent createCenterPanel() {
    List<FileStructureFilter> fileStructureFilters = new ArrayList<FileStructureFilter>();
    List<FileStructureNodeProvider> fileStructureNodeProviders =
        new ArrayList<FileStructureNodeProvider>();
    if (myTreeActionsOwner != null) {
      for (Filter filter : myBaseTreeModel.getFilters()) {
        if (filter instanceof FileStructureFilter) {
          final FileStructureFilter fsFilter = (FileStructureFilter) filter;
          myTreeActionsOwner.setActionIncluded(fsFilter, true);
          fileStructureFilters.add(fsFilter);
        }
      }

      if (myBaseTreeModel instanceof ProvidingTreeModel) {
        for (NodeProvider provider : ((ProvidingTreeModel) myBaseTreeModel).getNodeProviders()) {
          if (provider instanceof FileStructureNodeProvider) {
            fileStructureNodeProviders.add((FileStructureNodeProvider) provider);
          }
        }
      }
    }
    final JPanel panel = new JPanel(new BorderLayout());
    JPanel comboPanel = new JPanel(new GridLayout(0, 2, 0, 0));

    final Shortcut[] F4 =
        ActionManager.getInstance()
            .getAction(IdeActions.ACTION_EDIT_SOURCE)
            .getShortcutSet()
            .getShortcuts();
    final Shortcut[] ENTER = CustomShortcutSet.fromString("ENTER").getShortcuts();
    final CustomShortcutSet shortcutSet = new CustomShortcutSet(ArrayUtil.mergeArrays(F4, ENTER));
    new AnAction() {
      public void actionPerformed(AnActionEvent e) {
        final boolean succeeded = navigateSelectedElement();
        if (succeeded) {
          unregisterCustomShortcutSet(panel);
        }
      }
    }.registerCustomShortcutSet(shortcutSet, panel);

    new AnAction() {
      public void actionPerformed(AnActionEvent e) {
        if (mySpeedSearch != null && mySpeedSearch.isPopupActive()) {
          mySpeedSearch.hidePopup();
        } else {
          myPopup.cancel();
        }
      }
    }.registerCustomShortcutSet(CustomShortcutSet.fromString("ESCAPE"), myTree);

    new ClickListener() {
      @Override
      public boolean onClick(MouseEvent e, int clickCount) {
        navigateSelectedElement();
        return true;
      }
    }.installOn(myTree);

    for (FileStructureFilter filter : fileStructureFilters) {
      addCheckbox(comboPanel, filter);
    }

    for (FileStructureNodeProvider provider : fileStructureNodeProviders) {
      addCheckbox(comboPanel, provider);
    }
    myPreferredWidth = Math.max(comboPanel.getPreferredSize().width, 350);
    panel.add(comboPanel, BorderLayout.NORTH);
    JScrollPane scrollPane = ScrollPaneFactory.createScrollPane(myAbstractTreeBuilder.getTree());
    scrollPane.setBorder(IdeBorderFactory.createBorder(SideBorder.TOP | SideBorder.BOTTOM));
    panel.add(scrollPane, BorderLayout.CENTER);
    panel.add(createSouthPanel(), BorderLayout.SOUTH);
    DataManager.registerDataProvider(
        panel,
        new DataProvider() {
          @Override
          public Object getData(@NonNls String dataId) {
            if (PlatformDataKeys.PROJECT.is(dataId)) {
              return myProject;
            }
            if (LangDataKeys.PSI_ELEMENT.is(dataId)) {
              final Object node =
                  ContainerUtil.getFirstItem(myAbstractTreeBuilder.getSelectedElements());
              if (!(node instanceof FilteringTreeStructure.FilteringNode)) return null;
              return getPsi((FilteringTreeStructure.FilteringNode) node);
            }
            if (LangDataKeys.POSITION_ADJUSTER_POPUP.is(dataId)) {
              return myPopup;
            }
            if (PlatformDataKeys.TREE_EXPANDER.is(dataId)) {
              return myTreeExpander;
            }
            return null;
          }
        });

    return panel;
  }
  private static Pair<Set<String>, Set<TextWithImports>> findReferencedVars(
      Set<String> visibleVars, SourcePosition position) {
    final int line = position.getLine();
    if (line < 0) {
      return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
    }
    final PsiFile positionFile = position.getFile();
    if (!positionFile.getLanguage().isKindOf(JavaLanguage.INSTANCE)) {
      return Pair.create(visibleVars, Collections.<TextWithImports>emptySet());
    }

    final VirtualFile vFile = positionFile.getVirtualFile();
    final Document doc =
        vFile != null ? FileDocumentManager.getInstance().getDocument(vFile) : null;
    if (doc == null || doc.getLineCount() == 0 || line > (doc.getLineCount() - 1)) {
      return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
    }

    final TextRange limit = calculateLimitRange(positionFile, doc, line);

    int startLine = Math.max(limit.getStartOffset(), line - 1);
    startLine = Math.min(startLine, limit.getEndOffset());
    while (startLine > limit.getStartOffset() && shouldSkipLine(positionFile, doc, startLine)) {
      startLine--;
    }
    final int startOffset = doc.getLineStartOffset(startLine);

    int endLine = Math.min(line + 2, limit.getEndOffset());
    while (endLine < limit.getEndOffset() && shouldSkipLine(positionFile, doc, endLine)) {
      endLine++;
    }
    final int endOffset = doc.getLineEndOffset(endLine);

    final TextRange lineRange = new TextRange(startOffset, endOffset);
    if (!lineRange.isEmpty()) {
      final int offset =
          CharArrayUtil.shiftForward(doc.getCharsSequence(), doc.getLineStartOffset(line), " \t");
      PsiElement element = positionFile.findElementAt(offset);
      if (element != null) {
        PsiMethod method = PsiTreeUtil.getNonStrictParentOfType(element, PsiMethod.class);
        if (method != null) {
          element = method;
        } else {
          PsiField field = PsiTreeUtil.getNonStrictParentOfType(element, PsiField.class);
          if (field != null) {
            element = field;
          } else {
            final PsiClassInitializer initializer =
                PsiTreeUtil.getNonStrictParentOfType(element, PsiClassInitializer.class);
            if (initializer != null) {
              element = initializer;
            }
          }
        }

        //noinspection unchecked
        if (element instanceof PsiCompiledElement) {
          return Pair.create(visibleVars, Collections.<TextWithImports>emptySet());
        } else {
          VariablesCollector collector =
              new VariablesCollector(visibleVars, adjustRange(element, lineRange));
          element.accept(collector);
          return Pair.create(collector.getVars(), collector.getExpressions());
        }
      }
    }
    return Pair.create(Collections.<String>emptySet(), Collections.<TextWithImports>emptySet());
  }