Ejemplo n.º 1
0
EphemeralRange LocalFrame::rangeForPoint(const IntPoint& framePoint) {
  const PositionWithAffinity positionWithAffinity =
      positionForPoint(framePoint);
  if (positionWithAffinity.isNull())
    return EphemeralRange();

  VisiblePosition position = createVisiblePosition(positionWithAffinity);
  VisiblePosition previous = previousPositionOf(position);
  if (previous.isNotNull()) {
    const EphemeralRange previousCharacterRange = makeRange(previous, position);
    IntRect rect = editor().firstRectForRange(previousCharacterRange);
    if (rect.contains(framePoint))
      return EphemeralRange(previousCharacterRange);
  }

  VisiblePosition next = nextPositionOf(position);
  const EphemeralRange nextCharacterRange = makeRange(position, next);
  if (nextCharacterRange.isNotNull()) {
    IntRect rect = editor().firstRectForRange(nextCharacterRange);
    if (rect.contains(framePoint))
      return EphemeralRange(nextCharacterRange);
  }

  return EphemeralRange();
}
Ejemplo n.º 2
0
PositionWithAffinity LocalFrame::positionForPoint(const IntPoint& framePoint) {
  HitTestResult result = eventHandler().hitTestResultAtPoint(framePoint);
  Node* node = result.innerNodeOrImageMapImage();
  if (!node)
    return PositionWithAffinity();
  LayoutObject* layoutObject = node->layoutObject();
  if (!layoutObject)
    return PositionWithAffinity();
  const PositionWithAffinity position =
      layoutObject->positionForPoint(result.localPoint());
  if (position.isNull())
    return PositionWithAffinity(firstPositionInOrBeforeNode(node));
  return position;
}
Ejemplo n.º 3
0
void CaretBase::updateCaretRect(const PositionWithAffinity& caretPosition) {
    m_caretLocalRect = LayoutRect();

    if (caretPosition.isNull())
        return;

    DCHECK(caretPosition.anchorNode()->layoutObject());

    // First compute a rect local to the layoutObject at the selection start.
    LayoutObject* layoutObject;
    m_caretLocalRect = localCaretRectOfPosition(caretPosition, layoutObject);

    // Get the layoutObject that will be responsible for painting the caret
    // (which is either the layoutObject we just found, or one of its containers).
    LayoutBlockItem caretPainterItem =
        LayoutBlockItem(caretLayoutObject(caretPosition.anchorNode()));

    mapCaretRectToCaretPainter(LayoutItem(layoutObject), caretPainterItem,
                               m_caretLocalRect);
}