static void InvalidateRegion(nsIWidget* aWidget, const LayoutDeviceIntRegion& aRegion) { for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) { aWidget->Invalidate(iter.Get()); } }
static void CalculatePluginClip(const LayoutDeviceIntRect& aBounds, const nsTArray<LayoutDeviceIntRect>& aPluginClipRects, const LayoutDeviceIntPoint& aContentOffset, const LayoutDeviceIntRegion& aParentLayerVisibleRegion, nsTArray<LayoutDeviceIntRect>& aResult, LayoutDeviceIntRect& aVisibleBounds, bool& aPluginIsVisible) { aPluginIsVisible = true; LayoutDeviceIntRegion contentVisibleRegion; // aPluginClipRects (plugin widget origin) - contains *visible* rects for (uint32_t idx = 0; idx < aPluginClipRects.Length(); idx++) { LayoutDeviceIntRect rect = aPluginClipRects[idx]; // shift to content origin rect.MoveBy(aBounds.x, aBounds.y); // accumulate visible rects contentVisibleRegion.OrWith(rect); } // apply layers clip (window origin) LayoutDeviceIntRegion region = aParentLayerVisibleRegion; region.MoveBy(-aContentOffset.x, -aContentOffset.y); contentVisibleRegion.AndWith(region); if (contentVisibleRegion.IsEmpty()) { aPluginIsVisible = false; return; } // shift to plugin widget origin contentVisibleRegion.MoveBy(-aBounds.x, -aBounds.y); for (auto iter = contentVisibleRegion.RectIter(); !iter.Done(); iter.Next()) { const LayoutDeviceIntRect& rect = iter.Get(); aResult.AppendElement(rect); aVisibleBounds.UnionRect(aVisibleBounds, rect); } }