void ChromeClient::setToolTip(LocalFrame& frame, const HitTestResult& result) {
// First priority is a tooltip for element with "title" attribute.
TextDirection toolTipDirection;
String toolTip = result.title(toolTipDirection);
// Lastly, some elements provide default tooltip strings. e.g. <input
// type="file" multiple> shows a tooltip for the selected filenames.
if (toolTip.isEmpty()) {
if (Node* node = result.innerNode()) {
if (node->isElementNode()) {
toolTip = toElement(node)->defaultToolTip();
// FIXME: We should obtain text direction of tooltip from
// ChromeClient or platform. As of October 2011, all client
// implementations don't use text direction information for
// ChromeClient::setToolTip. We'll work on tooltip text
// direction during bidi cleanup in form inputs.
toolTipDirection = LTR;
}
}
}
if (m_lastToolTipPoint == result.hitTestLocation().point() &&
m_lastToolTipText == toolTip)
return;
m_lastToolTipPoint = result.hitTestLocation().point();
m_lastToolTipText = toolTip;
setToolTip(frame, toolTip, toolTipDirection);
}
void ChromeClient::setToolTip(const HitTestResult& result)
{
// First priority is a potential toolTip representing a spelling or grammar
// error.
TextDirection toolTipDirection;
String toolTip = result.spellingToolTip(toolTipDirection);
// Next we'll consider a tooltip for element with "title" attribute.
if (toolTip.isEmpty())
toolTip = result.title(toolTipDirection);
// Lastly, for <input type="file"> that allow multiple files, we'll consider
// a tooltip for the selected filenames.
if (toolTip.isEmpty()) {
if (Node* node = result.innerNode()) {
if (isHTMLInputElement(*node)) {
HTMLInputElement* input = toHTMLInputElement(node);
toolTip = input->defaultToolTip();
// FIXME: We should obtain text direction of tooltip from
// ChromeClient or platform. As of October 2011, all client
// implementations don't use text direction information for
// ChromeClient::setToolTip. We'll work on tooltip text
// direction during bidi cleanup in form inputs.
toolTipDirection = LTR;
}
}
}
if (m_lastToolTipPoint == result.hitTestLocation().point() && m_lastToolTipText == toolTip)
return;
m_lastToolTipPoint = result.hitTestLocation().point();
m_lastToolTipText = toolTip;
setToolTip(toolTip, toolTipDirection);
}
void HitTestCache::addCachedResult(const HitTestResult& result, uint64_t domTreeVersion)
{
if (!result.isCacheable())
return;
// If the result was a hit test on an LayoutPart and the request allowed
// querying of the layout part; then the part hasn't been loaded yet.
if (result.isOverWidget() && result.hitTestRequest().allowsChildFrameContent())
return;
// For now don't support rect based or list based requests.
if (result.hitTestLocation().isRectBasedTest() || result.hitTestRequest().listBased())
return;
if (domTreeVersion != m_domTreeVersion)
clear();
if (m_items.size() < HIT_TEST_CACHE_SIZE)
m_items.resize(m_updateIndex + 1);
m_items.at(m_updateIndex).cacheValues(result);
m_domTreeVersion = domTreeVersion;
m_updateIndex++;
if (m_updateIndex >= HIT_TEST_CACHE_SIZE)
m_updateIndex = 0;
}
bool LayoutImage::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
{
HitTestResult tempResult(result.hitTestRequest(), result.hitTestLocation());
bool inside = LayoutReplaced::nodeAtPoint(tempResult, locationInContainer, accumulatedOffset, hitTestAction);
if (!inside && result.hitTestRequest().listBased())
result.append(tempResult);
if (inside)
result = tempResult;
return inside;
}
bool RenderImage::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset)
{
HitTestResult tempResult(result.hitTestLocation());
bool inside = RenderReplaced::nodeAtPoint(request, tempResult, locationInContainer, accumulatedOffset);
if (!inside && result.isRectBasedTest())
result.append(tempResult);
if (inside)
result = tempResult;
return inside;
}
bool HitTestCache::lookupCachedResult(HitTestResult& hitResult, uint64_t domTreeVersion)
{
bool result = false;
HitHistogramMetric metric = HitHistogramMetric::MISS;
if (hitResult.hitTestRequest().avoidCache()) {
metric = HitHistogramMetric::MISS_EXPLICIT_AVOID;
// For now we don't support rect based hit results.
} else if (domTreeVersion == m_domTreeVersion && !hitResult.hitTestLocation().isRectBasedTest()) {
for (const auto& cachedItem : m_items) {
if (cachedItem.hitTestLocation().point() == hitResult.hitTestLocation().point()) {
if (hitResult.hitTestRequest().equalForCacheability(cachedItem.hitTestRequest())) {
metric = HitHistogramMetric::HIT_EXACT_MATCH;
result = true;
hitResult = cachedItem;
break;
}
metric = HitHistogramMetric::MISS_VALIDITY_RECT_MATCHES;
}
}
}
Platform::current()->histogramEnumeration("Event.HitTest", static_cast<int>(metric), static_cast<int>(HitHistogramMetric::MAX_HIT_METRIC));
return result;
}
bool RenderImage::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
{
HitTestResult tempResult(result.hitTestLocation());
bool inside = RenderReplaced::nodeAtPoint(request, tempResult, locationInContainer, accumulatedOffset, hitTestAction);
if (tempResult.innerNode() && node()) {
if (HTMLMapElement* map = imageMap()) {
LayoutRect contentBox = contentBoxRect();
float scaleFactor = 1 / style()->effectiveZoom();
LayoutPoint mapLocation = locationInContainer.point() - toLayoutSize(accumulatedOffset) - locationOffset() - toLayoutSize(contentBox.location());
mapLocation.scale(scaleFactor, scaleFactor);
if (map->mapMouseEvent(mapLocation, contentBox.size(), tempResult))
tempResult.setInnerNonSharedNode(node());
}
}
if (!inside && result.isRectBasedTest())
result.append(tempResult);
if (inside)
result = tempResult;
return inside;
}
bool RenderView::hitTest(const HitTestRequest& request, HitTestResult& result)
{
return hitTest(request, result.hitTestLocation(), result);
}
