HitTestCanvasResult* CanvasRenderingContext2D::getControlAndIdIfHitRegionExists(
const LayoutPoint& location) {
if (hitRegionsCount() <= 0)
return HitTestCanvasResult::create(String(), nullptr);
LayoutBox* box = canvas()->layoutBox();
FloatPoint localPos =
box->absoluteToLocal(FloatPoint(location), UseTransforms);
if (box->hasBorderOrPadding())
localPos.move(-box->contentBoxOffset());
localPos.scale(canvas()->width() / box->contentWidth(),
canvas()->height() / box->contentHeight());
HitRegion* hitRegion = hitRegionAtPoint(localPos);
if (hitRegion) {
Element* control = hitRegion->control();
if (control && canvas()->isSupportedInteractiveCanvasFallback(*control))
return HitTestCanvasResult::create(hitRegion->id(), hitRegion->control());
return HitTestCanvasResult::create(hitRegion->id(), nullptr);
}
return HitTestCanvasResult::create(String(), nullptr);
}
void SpinButtonElement::defaultEventHandler(Event* event)
{
if (!event->isMouseEvent()) {
if (!event->defaultHandled())
HTMLDivElement::defaultEventHandler(event);
return;
}
LayoutBox* box = layoutBox();
if (!box) {
if (!event->defaultHandled())
HTMLDivElement::defaultEventHandler(event);
return;
}
if (!shouldRespondToMouseEvents()) {
if (!event->defaultHandled())
HTMLDivElement::defaultEventHandler(event);
return;
}
MouseEvent* mouseEvent = toMouseEvent(event);
IntPoint local = roundedIntPoint(box->absoluteToLocal(FloatPoint(mouseEvent->absoluteLocation()), UseTransforms));
if (mouseEvent->type() == EventTypeNames::mousedown && mouseEvent->button() == LeftButton) {
if (box->pixelSnappedBorderBoxRect().contains(local)) {
// The following functions of HTMLInputElement may run JavaScript
// code which detaches this shadow node. We need to take a reference
// and check layoutObject() after such function calls.
RefPtrWillBeRawPtr<Node> protector(this);
if (m_spinButtonOwner)
m_spinButtonOwner->focusAndSelectSpinButtonOwner();
if (layoutObject()) {
if (m_upDownState != Indeterminate) {
// A JavaScript event handler called in doStepAction() below
// might change the element state and we might need to
// cancel the repeating timer by the state change. If we
// started the timer after doStepAction(), we would have no
// chance to cancel the timer.
startRepeatingTimer();
doStepAction(m_upDownState == Up ? 1 : -1);
}
}
event->setDefaultHandled();
}
} else if (mouseEvent->type() == EventTypeNames::mouseup && mouseEvent->button() == LeftButton) {
releaseCapture();
} else if (event->type() == EventTypeNames::mousemove) {
if (box->pixelSnappedBorderBoxRect().contains(local)) {
if (!m_capturing) {
if (LocalFrame* frame = document().frame()) {
frame->eventHandler().setCapturingMouseEventsNode(this);
m_capturing = true;
if (Page* page = document().page())
page->chromeClient().registerPopupOpeningObserver(this);
}
}
UpDownState oldUpDownState = m_upDownState;
m_upDownState = (local.y() < box->size().height() / 2) ? Up : Down;
if (m_upDownState != oldUpDownState)
layoutObject()->setShouldDoFullPaintInvalidation();
} else {
releaseCapture();
m_upDownState = Indeterminate;
}
}
if (!event->defaultHandled())
HTMLDivElement::defaultEventHandler(event);
}