First Implementation of Snapped Points

third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 364 matching lines @@
       contents_clipping_mask_layer_->SetSize(FloatSize(contents_rect_.Size()));
       contents_clipping_mask_layer_->SetNeedsDisplay();
     }
     contents_clipping_mask_layer_->SetPosition(FloatPoint());
     contents_clipping_mask_layer_->SetOffsetFromLayoutObject(
         OffsetFromLayoutObject() +
         IntSize(contents_rect_.Location().X(), contents_rect_.Location().Y()));
   }
 }
 
+void GraphicsLayer::SetSnapOffsets(const WebSnapPointList& offsets) {
+  layer_->Layer()->SetScrollSnapOffsets(offsets);
+}
+
+/*void GraphicsLayer::UpdateSnapOffsets() {
+  std::vector<double> horizontalOffsets, verticalOffsets;
+  for (double offset : m_snapOffsetsH) {
+    LOG(ERROR) << offset;
+    horizontalOffsets.push_back(offset);
+  }
+  for (double offset : m_snapOffsetsV) {
+    verticalOffsets.push_back(offset);
+  }
+  m_layer->layer()->setScrollSnapOffsets(horizontalOffsets, verticalOffsets);
+}*/
+
 static HashSet<int>* g_registered_layer_set;
 
 void GraphicsLayer::RegisterContentsLayer(WebLayer* layer) {
   if (!g_registered_layer_set)
     g_registered_layer_set = new HashSet<int>;
   CHECK(!g_registered_layer_set->Contains(layer->Id()));
   g_registered_layer_set->insert(layer->Id());
 }
 
 void GraphicsLayer::UnregisterContentsLayer(WebLayer* layer) {
@@ skipping 907 matching lines @@
   if (!layer) {
     LOG(INFO) << "Cannot showGraphicsLayers for (nil).";
     return;
   }
 
   String output =
       layer->LayerTreeAsText(0xffffffff & ~blink::kOutputAsLayerTree);
   LOG(INFO) << output.Utf8().data();
 }
 #endif