void GLExtras::drawFindOnPage(SkRect& viewport)
{
WTF::Vector<MatchInfo>* matches = m_findOnPage->matches();
XLOG("drawFindOnPage, matches: %p", matches);
if (!matches || !m_findOnPage->isCurrentLocationValid())
return;
int count = matches->size();
int current = m_findOnPage->currentMatchIndex();
XLOG("match count: %d", count);
if (count < MAX_NUMBER_OF_MATCHES_TO_DRAW)
for (int i = 0; i < count; i++) {
MatchInfo& info = matches->at(i);
const SkRegion& region = info.getLocation();
SkIRect rect = region.getBounds();
if (rect.intersect(viewport.fLeft, viewport.fTop,
viewport.fRight, viewport.fBottom))
drawRegion(region, i == current, false, true);
#ifdef DEBUG
else
XLOG("Quick rejecting [%dx%d, %d, %d", rect.fLeft, rect.fTop,
rect.width(), rect.height());
#endif // DEBUG
}
else {
MatchInfo& info = matches->at(current);
drawRegion(info.getLocation(), true, false, true);
}
}
void MaskNode::OnSelfOrChildStateChange() {
m_bChildNeedDraw = true;
m_bBoundingDirty = true; // 不需要调用SetBoundingDirty()，因为不需要通知父节点
WTF::Vector<UINode*>* owners = m_pManager->GetEffectsResOwnerNodes(this);
if (!owners)
return;
// 子节点绘图消息被转发到拥有者节点上
for (size_t i = 0; i < owners->size(); ++i)
owners->at(i)->SetNeedLayout();
}
static void WebHistoryClose(JNIEnv* env, jobject obj, jint frame)
{
LOG_ASSERT(frame, "Close needs a valid Frame pointer!");
WebCore::Frame* pFrame = (WebCore::Frame*)frame;
WebCore::BackForwardList* list = pFrame->page()->backForwardList();
RefPtr<WebCore::HistoryItem> current = list->currentItem();
// Remove each item instead of using close(). close() is intended to be used
// right before the list is deleted.
WebCore::HistoryItemVector& entries = list->entries();
int size = entries.size();
for (int i = size - 1; i >= 0; --i)
list->removeItem(entries[i].get());
// Add the current item back to the list.
if (current) {
current->setBridge(0);
// addItem will update the children to match the newly created bridge
list->addItem(current);
/*
* The Grand Prix site uses anchor navigations to change the display.
* WebKit tries to be smart and not load child frames that have the
* same history urls during an anchor navigation. This means that the
* current history item stored in the child frame's loader does not
* match the item found in the history tree. If we remove all the
* entries in the back/foward list, we have to restore the entire tree
* or else a HistoryItem might have a deleted parent.
*
* In order to restore the history tree correctly, we have to look up
* all the frames first and then look up the history item. We do this
* because the history item in the tree may be null at this point.
* Unfortunately, a HistoryItem can only search its immediately
* children so we do a breadth-first rebuild of the tree.
*/
// Keep a small list of child frames to traverse.
WTF::Vector<WebCore::Frame*> frameQueue;
// Fix the top-level item.
pFrame->loader()->history()->setCurrentItem(current.get());
WebCore::Frame* child = pFrame->tree()->firstChild();
// Remember the parent history item so we can search for a child item.
RefPtr<WebCore::HistoryItem> parent = current;
while (child) {
// Use the old history item since the current one may have a
// deleted parent.
WebCore::HistoryItem* item = parent->childItemWithTarget(child->tree()->name());
child->loader()->history()->setCurrentItem(item);
// Append the first child to the queue if it exists. If there is no
// item, then we do not need to traverse the children since there
// will be no parent history item.
WebCore::Frame* firstChild;
if (item && (firstChild = child->tree()->firstChild()))
frameQueue.append(firstChild);
child = child->tree()->nextSibling();
// If we don't have a sibling for this frame and the queue isn't
// empty, use the next entry in the queue.
if (!child && !frameQueue.isEmpty()) {
child = frameQueue.at(0);
frameQueue.remove(0);
// Figure out the parent history item used when searching for
// the history item to use.
parent = child->tree()->parent()->loader()->history()->currentItem();
}
}
}
}