[mus+ash] Implements hit-test client in Aura

components/viz/client/client_layer_tree_frame_sink.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/viz/client/client_layer_tree_frame_sink.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/layer_tree_frame_sink_client.h"
+#include "components/viz/client/hit_test_data_provider.h"
 #include "components/viz/client/local_surface_id_provider.h"
 
 namespace viz {
 
 ClientLayerTreeFrameSink::ClientLayerTreeFrameSink(
     scoped_refptr<cc::ContextProvider> context_provider,
     scoped_refptr<cc::ContextProvider> worker_context_provider,
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
     cc::SharedBitmapManager* shared_bitmap_manager,
     std::unique_ptr<cc::SyntheticBeginFrameSource> synthetic_begin_frame_source,
     cc::mojom::CompositorFrameSinkPtrInfo compositor_frame_sink_info,
     cc::mojom::CompositorFrameSinkClientRequest client_request,
+    std::unique_ptr<HitTestDataProvider> hit_test_data_provider,
     std::unique_ptr<LocalSurfaceIdProvider> local_surface_id_provider,
     bool enable_surface_synchronization)
     : cc::LayerTreeFrameSink(std::move(context_provider),
                              std::move(worker_context_provider),
                              gpu_memory_buffer_manager,
                              shared_bitmap_manager),
+      hit_test_data_provider_(std::move(hit_test_data_provider)),
       local_surface_id_provider_(std::move(local_surface_id_provider)),
       synthetic_begin_frame_source_(std::move(synthetic_begin_frame_source)),
       compositor_frame_sink_info_(std::move(compositor_frame_sink_info)),
       client_request_(std::move(client_request)),
       client_binding_(this),
       enable_surface_synchronization_(enable_surface_synchronization),
       weak_factory_(this) {
   DETACH_FROM_THREAD(thread_checker_);
 }
 
 ClientLayerTreeFrameSink::ClientLayerTreeFrameSink(
     scoped_refptr<cc::VulkanContextProvider> vulkan_context_provider,
     std::unique_ptr<cc::SyntheticBeginFrameSource> synthetic_begin_frame_source,
     cc::mojom::CompositorFrameSinkPtrInfo compositor_frame_sink_info,
     cc::mojom::CompositorFrameSinkClientRequest client_request,
+    std::unique_ptr<HitTestDataProvider> hit_test_data_provider,
     std::unique_ptr<LocalSurfaceIdProvider> local_surface_id_provider,
     bool enable_surface_synchronization)
     : cc::LayerTreeFrameSink(std::move(vulkan_context_provider)),
+      hit_test_data_provider_(std::move(hit_test_data_provider)),
       local_surface_id_provider_(std::move(local_surface_id_provider)),
       synthetic_begin_frame_source_(std::move(synthetic_begin_frame_source)),
       compositor_frame_sink_info_(std::move(compositor_frame_sink_info)),
       client_request_(std::move(client_request)),
       client_binding_(this),
       enable_surface_synchronization_(enable_surface_synchronization),
       weak_factory_(this) {
   DETACH_FROM_THREAD(thread_checker_);
 }
 
@@ skipping 49 matching lines @@
   DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
   DCHECK(frame.metadata.begin_frame_ack.has_damage);
   DCHECK_LE(cc::BeginFrameArgs::kStartingFrameNumber,
             frame.metadata.begin_frame_ack.sequence_number);
 
   if (!enable_surface_synchronization_) {
     local_surface_id_ =
         local_surface_id_provider_->GetLocalSurfaceIdForFrame(frame);
   }
 
+  if (hit_test_data_provider_) {
+    std::unique_ptr<HitTestDataProvider::HitTestRegionList> hit_test_data =
+        hit_test_data_provider_->GetHitTestData();
+    if (!hit_test_data->empty()) {
+      LOG(ERROR) << __FUNCTION__ << "--- " << hit_test_data->size() << " ---";
+      int i = 0;
+      for (const auto& region : *hit_test_data) {
+        LOG(ERROR) << __FUNCTION__ << "[" << i++ << "] flags=" << region.flags
+                   << " cid=" << region.frame_sink_id.client_id()
+                   << " sid=" << region.frame_sink_id.sink_id()
+                   << " wid=" << (region.window_id & 0xFFFF)
+                   << " rect=" << region.rect.ToString();
+      }
+    }
+  }
   compositor_frame_sink_->SubmitCompositorFrame(local_surface_id_,
                                                 std::move(frame));
 }
 
 void ClientLayerTreeFrameSink::DidNotProduceFrame(
     const cc::BeginFrameAck& ack) {
   DCHECK(!ack.has_damage);
   DCHECK_LE(cc::BeginFrameArgs::kStartingFrameNumber, ack.sequence_number);
   compositor_frame_sink_->DidNotProduceFrame(ack);
 }
@@ skipping 23 matching lines @@
 
 // static
 void ClientLayerTreeFrameSink::OnMojoConnectionError(
     uint32_t custom_reason,
     const std::string& description) {
   if (custom_reason)
     DLOG(FATAL) << description;
 }
 
 }  // namespace viz