本文整理汇总了C++中ScrollableArea::scrollableAreaBoundingBox方法的典型用法代码示例。如果您正苦于以下问题：C++ ScrollableArea::scrollableAreaBoundingBox方法的具体用法？C++ ScrollableArea::scrollableAreaBoundingBox怎么用？C++ ScrollableArea::scrollableAreaBoundingBox使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ScrollableArea的用法示例。
在下文中一共展示了ScrollableArea::scrollableAreaBoundingBox方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: computeNonFastScrollableRegion
static Region computeNonFastScrollableRegion(FrameView* frameView)
{
Region nonFastScrollableRegion;
HashSet<FrameView*> childFrameViews;
for (HashSet<RefPtr<Widget> >::const_iterator it = frameView->children()->begin(), end = frameView->children()->end(); it != end; ++it) {
if ((*it)->isFrameView())
childFrameViews.add(static_cast<FrameView*>(it->get()));
}
if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
ScrollableArea* scrollableArea = *it;
// Check if this area can be scrolled at all.
// If this scrollable area is a frame view that itself has scrollable areas, then we need to add it to the region.
if ((!scrollableArea->horizontalScrollbar() || !scrollableArea->horizontalScrollbar()->enabled())
&& (!scrollableArea->verticalScrollbar() || !scrollableArea->verticalScrollbar()->enabled())
&& (!childFrameViews.contains(static_cast<FrameView*>(scrollableArea)) || !static_cast<FrameView*>(scrollableArea)->scrollableAreas()))
continue;
nonFastScrollableRegion.unite(scrollableArea->scrollableAreaBoundingBox());
}
}
return nonFastScrollableRegion;
}示例2: computeNonFastScrollableRegion
Region ScrollingCoordinator::computeNonFastScrollableRegion(const Frame* frame, const IntPoint& frameLocation) const
{
#if ENABLE(IOS_TOUCH_EVENTS)
// On iOS, we use nonFastScrollableRegion to represent the region covered by elements with touch event handlers.
ASSERT(frame->isMainFrame());
UNUSED_PARAM(frameLocation);
Document* document = frame->document();
if (!document)
return Region();
Vector<IntRect> touchRects;
document->getTouchRects(touchRects);
Region touchRegion;
for (const auto& rect : touchRects)
touchRegion.unite(rect);
return touchRegion;
#else
Region nonFastScrollableRegion;
FrameView* frameView = frame->view();
if (!frameView)
return nonFastScrollableRegion;
IntPoint offset = frameLocation;
offset.moveBy(frameView->frameRect().location());
offset.move(0, frameView->topContentInset());
if (const FrameView::ScrollableAreaSet* scrollableAreas = frameView->scrollableAreas()) {
for (FrameView::ScrollableAreaSet::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
ScrollableArea* scrollableArea = *it;
// Composited scrollable areas can be scrolled off the main thread.
if (scrollableArea->usesCompositedScrolling())
continue;
IntRect box = scrollableArea->scrollableAreaBoundingBox();
box.moveBy(offset);
nonFastScrollableRegion.unite(box);
}
}
for (const auto& child : frameView->children()) {
if (!child->isPluginViewBase())
continue;
PluginViewBase* pluginViewBase = toPluginViewBase(child.get());
if (pluginViewBase->wantsWheelEvents())
nonFastScrollableRegion.unite(pluginViewBase->frameRect());
}
for (Frame* subframe = frame->tree().firstChild(); subframe; subframe = subframe->tree().nextSibling())
nonFastScrollableRegion.unite(computeNonFastScrollableRegion(subframe, offset));
return nonFastScrollableRegion;
#endif
}