Examples of org.waveprotocol.wave.model.document.util.FocusedRange

Package org.waveprotocol.wave.model.document.util

Examples of org.waveprotocol.wave.model.document.util.FocusedRange

org.waveprotocol.wave.model.document.util.FocusedRange
Similar to a {@link Range}, except it is not canonicalised to have a start <= end. Instead, it has an "anchor" and a "focus", which do not have ordering constraints Start and end are also provided for a canonicalised view. @author danilatos@google.com (Daniel Danilatos)

   *
   * @return false if the editor has no selection, or the selection is
   *         collapsed.
   */
  public static boolean hasRangeSelected(ContentDocument doc) {
    FocusedRange range = createSelectionHelper(doc).getSelectionRange();
    return range == null ? false : !range.isCollapsed();
  }

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   * @return (copy of) range transformed against modifier
   */
  public static FocusedRange applyModifier(DocOp modifier, FocusedRange range) {
    int anchor = LocationModifier.transformLocation(modifier, range.getAnchor());
    int focus  = LocationModifier.transformLocation(modifier, range.getFocus());
    return new FocusedRange(anchor, focus);
  }

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  public FocusedRange getSelectionRange() {
    FocusedContentRange contentRange = getSelectionPoints();
    if (contentRange == null) {
      return null;
    }
    return new FocusedRange(
        mapper.getLocation(contentRange.getAnchor()),
        mapper.getLocation(contentRange.getFocus())
    );
  }

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    );
  }


  @Override
  public Range getOrderedSelectionRange() {
    FocusedRange selection = getSelectionRange();
    return selection != null ? selection.asRange() : null;
  }

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      }
    }


    // TODO(user): investigate the cause of the loop.
    if (savedSelection != null) {
      FocusedRange range = new FocusedRange(mapper.getLocation(anchor), mapper.getLocation(focus));
      savedSelection.trackRange(range);
    }
  }

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   * selection setting methods, but they are four different versions so the code
   * would be somewhat uglier. Do it if speed becomes a problem.
   */
  private void saveSelection() {
    if (savedSelection != null) {
      FocusedRange range = getSelectionRange();
      if (range != null) {
        savedSelection.trackRange(range);
      }
    }
  }

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    }
  }


  @Override
  public void maybeCheckpoint(int startLocation, int endLocation) {
    pendingCheckpoint = new FocusedRange(startLocation, endLocation);
  }

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    DocOp undo = pair.first;
    DocOp transformedNonUndoable = pair.second;


    {
      FocusedRange selection = selectionHelper.getSelectionRange();


      if (selection != null) {
        redoSelectionStack.push(selection);
      } else {
        redoSelectionStack.push(UNKNOWN_SELECTION);

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    DocOp redo = pair.first;
    DocOp transformedNonUndoable = pair.second;


    {
      FocusedRange selection = selectionHelper.getSelectionRange();


      if (selection != null) {
        undoSelectionStack.push(selection);
      } else {
        undoSelectionStack.push(UNKNOWN_SELECTION);

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    if (selectionStack.isEmpty()) {
      logger.log(Level.ERROR,
          "SelectionStack empty! This probably shouldn't be reached, but we can live with it.");
      return null;
    }
    FocusedRange selection = selectionStack.pop();
    if (selection == UNKNOWN_SELECTION) {
      logger.log(Level.TRACE, "unknown selection");
      return null;
    } else {
      if (transformedNonUndoable != null) {

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