void FrameCaret::caretBlinkTimerFired(TimerBase*) {
DCHECK_EQ(m_caretVisibility, CaretVisibility::Visible);
if (isCaretBlinkingSuspended() && m_shouldPaintCaret)
return;
m_shouldPaintCaret = !m_shouldPaintCaret;
setCaretRectNeedsUpdate();
}
void FrameCaret::startBlinkCaret() {
// Start blinking with a black caret. Be sure not to restart if we're
// already blinking in the right location.
if (m_caretBlinkTimer.isActive())
return;
if (double blinkInterval = LayoutTheme::theme().caretBlinkInterval())
m_caretBlinkTimer.startRepeating(blinkInterval, BLINK_FROM_HERE);
m_shouldPaintCaret = true;
setCaretRectNeedsUpdate();
}
void DragCaretController::setCaretPosition(const VisiblePosition& position)
{
m_position = position;
setCaretRectNeedsUpdate();
Document* document = 0;
if (Node* node = m_position.deepEquivalent().deprecatedNode()) {
document = &node->document();
}
if (m_position.isNull() || m_position.isOrphan()) {
clearCaretRect();
} else {
document->updateRenderTreeIfNeeded();
updateCaretRect(document, m_position);
}
}
void FrameCaret::stopCaretBlinkTimer() {
if (m_caretBlinkTimer.isActive() || m_shouldPaintCaret)
setCaretRectNeedsUpdate();
m_shouldPaintCaret = false;
m_caretBlinkTimer.stop();
}
