bool ClientLayerManager::ProgressiveUpdateCallback(bool aHasPendingNewThebesContent, FrameMetrics& aMetrics, bool aDrawingCritical) { #ifdef MOZ_WIDGET_ANDROID MOZ_ASSERT(aMetrics.IsScrollable()); // This is derived from the code in // gfx/layers/ipc/CompositorParent.cpp::TransformShadowTree. CSSToLayerScale paintScale = aMetrics.LayersPixelsPerCSSPixel().ToScaleFactor(); const CSSRect& metricsDisplayPort = (aDrawingCritical && !aMetrics.GetCriticalDisplayPort().IsEmpty()) ? aMetrics.GetCriticalDisplayPort() : aMetrics.GetDisplayPort(); LayerRect displayPort = (metricsDisplayPort + aMetrics.GetScrollOffset()) * paintScale; ParentLayerPoint scrollOffset; CSSToParentLayerScale zoom; bool ret = AndroidBridge::Bridge()->ProgressiveUpdateCallback( aHasPendingNewThebesContent, displayPort, paintScale.scale, aDrawingCritical, scrollOffset, zoom); aMetrics.SetScrollOffset(scrollOffset / zoom); aMetrics.SetZoom(CSSToParentLayerScale2D(zoom)); return ret; #else return false; #endif }
void AppendToString(std::stringstream& aStream, const FrameMetrics& m, const char* pfx, const char* sfx, bool detailed) { aStream << pfx; AppendToString(aStream, m.GetCompositionBounds(), "{ [cb="); AppendToString(aStream, m.GetScrollableRect(), "] [sr="); AppendToString(aStream, m.GetScrollOffset(), "] [s="); if (m.GetDoSmoothScroll()) { AppendToString(aStream, m.GetSmoothScrollOffset(), "] [ss="); } AppendToString(aStream, m.GetDisplayPort(), "] [dp="); AppendToString(aStream, m.GetCriticalDisplayPort(), "] [cdp="); AppendToString(aStream, m.GetBackgroundColor(), "] [color="); if (!detailed) { AppendToString(aStream, m.GetScrollId(), "] [scrollId="); if (m.GetScrollParentId() != FrameMetrics::NULL_SCROLL_ID) { AppendToString(aStream, m.GetScrollParentId(), "] [scrollParent="); } if (m.IsRootContent()) { aStream << "] [rcd"; } if (m.HasClipRect()) { AppendToString(aStream, m.ClipRect(), "] [clip="); } AppendToString(aStream, m.GetZoom(), "] [z=", "] }"); } else { AppendToString(aStream, m.GetDisplayPortMargins(), " [dpm="); aStream << nsPrintfCString("] um=%d", m.GetUseDisplayPortMargins()).get(); AppendToString(aStream, m.GetRootCompositionSize(), "] [rcs="); AppendToString(aStream, m.GetViewport(), "] [v="); aStream << nsPrintfCString("] [z=(ld=%.3f r=%.3f", m.GetDevPixelsPerCSSPixel().scale, m.GetPresShellResolution()).get(); AppendToString(aStream, m.GetCumulativeResolution(), " cr="); AppendToString(aStream, m.GetZoom(), " z="); AppendToString(aStream, m.GetExtraResolution(), " er="); aStream << nsPrintfCString(")] [u=(%d %d %lu)", m.GetScrollOffsetUpdated(), m.GetDoSmoothScroll(), m.GetScrollGeneration()).get(); AppendToString(aStream, m.GetScrollParentId(), "] [p="); aStream << nsPrintfCString("] [i=(%ld %lld %d)] }", m.GetPresShellId(), m.GetScrollId(), m.IsRootContent()).get(); } aStream << sfx; }