Implement Main Thread RAF Aligned Input

content/renderer/input/input_event_filter_unittest.cc

 // Copyright 2013 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 <stddef.h>
 
 #include <new>
 #include <tuple>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 #include "content/common/input_messages.h"
 #include "content/common/view_messages.h"
 #include "content/renderer/input/input_event_filter.h"
+#include "content/renderer/input/input_handler_manager.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_test_sink.h"
 #include "ipc/message_filter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/blink/web_input_event_traits.h"
 
 using blink::WebInputEvent;
 using blink::WebMouseEvent;
 using blink::WebMouseWheelEvent;
 using blink::WebTouchEvent;
 
 namespace content {
 namespace {
 
 const int kTestRoutingID = 13;
 
-class InputEventRecorder {
+class InputEventRecorder : public content::InputHandlerManager {
  public:
-  InputEventRecorder()
-      : filter_(NULL),
+  InputEventRecorder(InputEventFilter* filter)
+      : InputHandlerManager(nullptr, filter, nullptr, nullptr),
         handle_events_(false),
         send_to_widget_(false),
         passive_(false) {}
 
-  void set_filter(InputEventFilter* filter) { filter_ = filter; }
+  ~InputEventRecorder() override {}
+
   void set_handle_events(bool value) { handle_events_ = value; }
   void set_send_to_widget(bool value) { send_to_widget_ = value; }
   void set_passive(bool value) { passive_ = value; }
 
   size_t record_count() const { return records_.size(); }
 
   const WebInputEvent* record_at(size_t i) const {
     const Record& record = records_[i];
     return reinterpret_cast<const WebInputEvent*>(&record.event_data[0]);
   }
 
   void Clear() {
     records_.clear();
   }
 
   InputEventAckState HandleInputEvent(int routing_id,
                                       const WebInputEvent* event,
-                                      ui::LatencyInfo* latency_info) {
+                                      ui::LatencyInfo* latency_info) override {
     DCHECK_EQ(kTestRoutingID, routing_id);
     records_.push_back(Record(event));
     if (handle_events_) {
       return INPUT_EVENT_ACK_STATE_CONSUMED;
     } else if (send_to_widget_) {
       if (passive_)
         return INPUT_EVENT_ACK_STATE_SET_NON_BLOCKING;
       else
         return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
     } else {
       return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
     }
   }
 
  private:
   struct Record {
     Record(const WebInputEvent* event) {
       const char* ptr = reinterpret_cast<const char*>(event);
       event_data.assign(ptr, ptr + event->size);
     }
     std::vector<char> event_data;
   };
 
-  InputEventFilter* filter_;
   bool handle_events_;
   bool send_to_widget_;
   bool passive_;
   std::vector<Record> records_;
 };
 
 class IPCMessageRecorder : public IPC::Listener {
  public:
   bool OnMessageReceived(const IPC::Message& message) override {
     messages_.push_back(message);
@@ skipping 40 matching lines @@
 
 }  // namespace
 
 class InputEventFilterTest : public testing::Test {
  public:
   void SetUp() override {
     filter_ = new InputEventFilter(
         base::Bind(base::IgnoreResult(&IPCMessageRecorder::OnMessageReceived),
                    base::Unretained(&message_recorder_)),
         base::ThreadTaskRunnerHandle::Get(), message_loop_.task_runner());
-    filter_->SetBoundHandler(base::Bind(&InputEventRecorder::HandleInputEvent,
-                                        base::Unretained(&event_recorder_)));
-
-    event_recorder_.set_filter(filter_.get());
-
+    event_recorder_ = base::MakeUnique<InputEventRecorder>(filter_.get());
+    filter_->SetInputHandlerManager(event_recorder_.get());
     filter_->OnFilterAdded(&ipc_sink_);
   }
 
  protected:
   base::MessageLoop message_loop_;
 
   // Used to record IPCs sent by the filter to the RenderWidgetHost.
   IPC::TestSink ipc_sink_;
 
   // Used to record IPCs forwarded by the filter to the main thread.
   IPCMessageRecorder message_recorder_;
 
+  scoped_refptr<InputEventFilter> filter_;
+
   // Used to record WebInputEvents delivered to the handler.
-  InputEventRecorder event_recorder_;
-
-  scoped_refptr<InputEventFilter> filter_;
+  std::unique_ptr<InputEventRecorder> event_recorder_;
 };
 
 TEST_F(InputEventFilterTest, Basic) {
   WebMouseEvent kEvents[3] = {
     SyntheticWebMouseEventBuilder::Build(WebMouseEvent::MouseMove, 10, 10, 0),
     SyntheticWebMouseEventBuilder::Build(WebMouseEvent::MouseMove, 20, 20, 0),
     SyntheticWebMouseEventBuilder::Build(WebMouseEvent::MouseMove, 30, 30, 0)
   };
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
   EXPECT_EQ(0U, ipc_sink_.message_count());
-  EXPECT_EQ(0U, event_recorder_.record_count());
+  EXPECT_EQ(0U, event_recorder_->record_count());
   EXPECT_EQ(0U, message_recorder_.message_count());
 
   filter_->RegisterRoutingID(kTestRoutingID);
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
   ASSERT_EQ(arraysize(kEvents), ipc_sink_.message_count());
-  ASSERT_EQ(arraysize(kEvents), event_recorder_.record_count());
+  ASSERT_EQ(arraysize(kEvents), event_recorder_->record_count());
   EXPECT_EQ(0U, message_recorder_.message_count());
 
   for (size_t i = 0; i < arraysize(kEvents); ++i) {
     const IPC::Message* message = ipc_sink_.GetMessageAt(i);
     EXPECT_EQ(kTestRoutingID, message->routing_id());
     EXPECT_EQ(InputHostMsg_HandleInputEvent_ACK::ID, message->type());
 
     InputHostMsg_HandleInputEvent_ACK::Param params;
     EXPECT_TRUE(InputHostMsg_HandleInputEvent_ACK::Read(message, &params));
     WebInputEvent::Type event_type = std::get<0>(params).type;
     InputEventAckState ack_result = std::get<0>(params).state;
 
     EXPECT_EQ(kEvents[i].type, event_type);
     EXPECT_EQ(ack_result, INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS);
 
-    const WebInputEvent* event = event_recorder_.record_at(i);
+    const WebInputEvent* event = event_recorder_->record_at(i);
     ASSERT_TRUE(event);
 
     EXPECT_EQ(kEvents[i].size, event->size);
     EXPECT_TRUE(memcmp(&kEvents[i], event, event->size) == 0);
   }
 
-  event_recorder_.set_send_to_widget(true);
+  event_recorder_->set_send_to_widget(true);
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
   EXPECT_EQ(arraysize(kEvents), ipc_sink_.message_count());
-  EXPECT_EQ(2 * arraysize(kEvents), event_recorder_.record_count());
+  EXPECT_EQ(2 * arraysize(kEvents), event_recorder_->record_count());
   EXPECT_EQ(1u, message_recorder_.message_count());
 
   {
     const IPC::Message& message = message_recorder_.message_at(0);
 
     ASSERT_EQ(InputMsg_HandleInputEvent::ID, message.type());
     InputMsg_HandleInputEvent::Param params;
     EXPECT_TRUE(InputMsg_HandleInputEvent::Read(&message, &params));
     const WebInputEvent* event = std::get<0>(params);
 
     EXPECT_EQ(kEvents[2].size, event->size);
     EXPECT_TRUE(memcmp(&kEvents[2], event, event->size) == 0);
   }
 
   // Now reset everything, and test that DidHandleInputEvent is called.
 
   ipc_sink_.ClearMessages();
-  event_recorder_.Clear();
+  event_recorder_->Clear();
   message_recorder_.Clear();
 
-  event_recorder_.set_handle_events(true);
+  event_recorder_->set_handle_events(true);
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
   EXPECT_EQ(arraysize(kEvents), ipc_sink_.message_count());
-  EXPECT_EQ(arraysize(kEvents), event_recorder_.record_count());
+  EXPECT_EQ(arraysize(kEvents), event_recorder_->record_count());
   EXPECT_EQ(0U, message_recorder_.message_count());
 
   for (size_t i = 0; i < arraysize(kEvents); ++i) {
     const IPC::Message* message = ipc_sink_.GetMessageAt(i);
     EXPECT_EQ(kTestRoutingID, message->routing_id());
     EXPECT_EQ(InputHostMsg_HandleInputEvent_ACK::ID, message->type());
 
     InputHostMsg_HandleInputEvent_ACK::Param params;
     EXPECT_TRUE(InputHostMsg_HandleInputEvent_ACK::Read(message, &params));
     WebInputEvent::Type event_type = std::get<0>(params).type;
     InputEventAckState ack_result = std::get<0>(params).state;
     EXPECT_EQ(kEvents[i].type, event_type);
     EXPECT_EQ(ack_result, INPUT_EVENT_ACK_STATE_CONSUMED);
   }
 
   filter_->OnFilterRemoved();
 }
 
 TEST_F(InputEventFilterTest, PreserveRelativeOrder) {
   filter_->RegisterRoutingID(kTestRoutingID);
-  event_recorder_.set_send_to_widget(true);
-
+  event_recorder_->set_send_to_widget(true);
 
   WebMouseEvent mouse_down =
       SyntheticWebMouseEventBuilder::Build(WebMouseEvent::MouseDown);
   WebMouseEvent mouse_up =
       SyntheticWebMouseEventBuilder::Build(WebMouseEvent::MouseUp);
 
   std::vector<IPC::Message> messages;
   messages.push_back(InputMsg_HandleInputEvent(
       kTestRoutingID, &mouse_down, ui::LatencyInfo(),
       ui::WebInputEventTraits::ShouldBlockEventStream(mouse_down)
@@ skipping 41 matching lines @@
 
 TEST_F(InputEventFilterTest, NonBlockingWheel) {
   WebMouseWheelEvent kEvents[4] = {
       SyntheticWebMouseWheelEventBuilder::Build(10, 10, 0, 53, 1, false),
       SyntheticWebMouseWheelEventBuilder::Build(20, 20, 0, 53, 0, false),
       SyntheticWebMouseWheelEventBuilder::Build(30, 30, 0, 53, 1, false),
       SyntheticWebMouseWheelEventBuilder::Build(30, 30, 0, 53, 1, false),
   };
 
   filter_->RegisterRoutingID(kTestRoutingID);
-  event_recorder_.set_send_to_widget(true);
-  event_recorder_.set_passive(true);
+  event_recorder_->set_send_to_widget(true);
+  event_recorder_->set_passive(true);
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
-  EXPECT_EQ(arraysize(kEvents), event_recorder_.record_count());
+  EXPECT_EQ(arraysize(kEvents), event_recorder_->record_count());
   ASSERT_EQ(4u, ipc_sink_.message_count());
 
   // All events are handled, one is coalesced.
   EXPECT_EQ(3u, message_recorder_.message_count());
 
   // First two messages should be identical.
   for (size_t i = 0; i < 2; ++i) {
     const IPC::Message& message = message_recorder_.message_at(i);
 
     ASSERT_EQ(InputMsg_HandleInputEvent::ID, message.type());
@@ skipping 36 matching lines @@
   kEvents[0].PressPoint(10, 10);
   kEvents[1].PressPoint(10, 10);
   kEvents[1].modifiers = 1;
   kEvents[1].MovePoint(0, 20, 20);
   kEvents[2].PressPoint(10, 10);
   kEvents[2].MovePoint(0, 30, 30);
   kEvents[3].PressPoint(10, 10);
   kEvents[3].MovePoint(0, 35, 35);
 
   filter_->RegisterRoutingID(kTestRoutingID);
-  event_recorder_.set_send_to_widget(true);
-  event_recorder_.set_passive(true);
+  event_recorder_->set_send_to_widget(true);
+  event_recorder_->set_passive(true);
 
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
-  EXPECT_EQ(arraysize(kEvents), event_recorder_.record_count());
+  EXPECT_EQ(arraysize(kEvents), event_recorder_->record_count());
   ASSERT_EQ(4u, ipc_sink_.message_count());
 
   // All events are handled and one set was coalesced.
   EXPECT_EQ(3u, message_recorder_.message_count());
 
   // First two messages should be identical.
   for (size_t i = 0; i < 2; ++i) {
     const IPC::Message& message = message_recorder_.message_at(i);
 
     ASSERT_EQ(InputMsg_HandleInputEvent::ID, message.type());
@@ skipping 32 matching lines @@
 
 TEST_F(InputEventFilterTest, IntermingledNonBlockingTouch) {
   SyntheticWebTouchEvent kEvents[2];
   kEvents[0].PressPoint(10, 10);
   kEvents[1].PressPoint(10, 10);
   kEvents[1].ReleasePoint(0);
   SyntheticWebTouchEvent kBlockingEvents[1];
   kBlockingEvents[0].PressPoint(10, 10);
 
   filter_->RegisterRoutingID(kTestRoutingID);
-  event_recorder_.set_send_to_widget(true);
-  event_recorder_.set_passive(true);
+  event_recorder_->set_send_to_widget(true);
+  event_recorder_->set_passive(true);
   AddEventsToFilter(filter_.get(), kEvents, arraysize(kEvents));
-  EXPECT_EQ(arraysize(kEvents), event_recorder_.record_count());
+  EXPECT_EQ(arraysize(kEvents), event_recorder_->record_count());
 
-  event_recorder_.set_passive(false);
+  event_recorder_->set_passive(false);
   AddEventsToFilter(filter_.get(), kBlockingEvents, arraysize(kBlockingEvents));
   EXPECT_EQ(arraysize(kEvents) + arraysize(kBlockingEvents),
-            event_recorder_.record_count());
-  ASSERT_EQ(3u, event_recorder_.record_count());
+            event_recorder_->record_count());
+  ASSERT_EQ(3u, event_recorder_->record_count());
   EXPECT_EQ(3u, message_recorder_.message_count());
 
   {
     const IPC::Message& message = message_recorder_.message_at(0);
     ASSERT_EQ(InputMsg_HandleInputEvent::ID, message.type());
     InputMsg_HandleInputEvent::Param params;
     EXPECT_TRUE(InputMsg_HandleInputEvent::Read(&message, &params));
     const WebInputEvent* event = std::get<0>(params);
     InputEventDispatchType dispatch_type = std::get<2>(params);
 
@@ skipping 29 matching lines @@
     const WebInputEvent* event = std::get<0>(params);
     InputEventDispatchType dispatch_type = std::get<2>(params);
 
     EXPECT_EQ(kBlockingEvents[0].size, event->size);
     EXPECT_TRUE(memcmp(&kBlockingEvents[0], event, event->size) == 0);
     EXPECT_EQ(InputEventDispatchType::DISPATCH_TYPE_BLOCKING, dispatch_type);
   }
 }
 
 }  // namespace content