Wires up PointerWatcherEventRouter for views aura-mus

ui/views/mus/pointer_watcher_event_router2_unittest.cc

+// Copyright 2016 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 "ui/views/mus/pointer_watcher_event_router2.h"
+
+#include <memory>
+
+#include "base/message_loop/message_loop.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/test/mus/window_tree_client_private.h"
+#include "ui/events/event.h"
+#include "ui/views/mus/mus_client.h"
+#include "ui/views/pointer_watcher.h"
+#include "ui/views/test/scoped_views_test_helper.h"
+
+namespace views {
+namespace {
+
+class TestPointerWatcher : public PointerWatcher {
+ public:
+  TestPointerWatcher() {}
+  ~TestPointerWatcher() override {}
+
+  ui::PointerEvent* last_event_observed() { return last_event_observed_.get(); }
+
+  void Reset() { last_event_observed_.reset(); }
+
+  // PointerWatcher:
+  void OnPointerEventObserved(const ui::PointerEvent& event,
+                              const gfx::Point& location_in_screen,
+                              Widget* target) override {
+    last_event_observed_ = base::MakeUnique<ui::PointerEvent>(event);
+  }
+
+ private:
+  std::unique_ptr<ui::PointerEvent> last_event_observed_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestPointerWatcher);
+};
+
+}  // namespace
+
+class PointerWatcherEventRouter2Test : public testing::Test {
+ public:
+  PointerWatcherEventRouter2Test() {}
+  ~PointerWatcherEventRouter2Test() override {}
+
+  void OnPointerEventObserved(const ui::PointerEvent& event) {
+    MusClient::Get()->pointer_watcher_event_router()->OnPointerEventObserved(
+        event, nullptr);
+  }
+
+  PointerWatcherEventRouter2::EventTypes event_types() const {
+    return MusClient::Get()->pointer_watcher_event_router()->event_types_;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PointerWatcherEventRouter2Test);
+};
+
+TEST_F(PointerWatcherEventRouter2Test, EventTypes) {
+  base::MessageLoop message_loop(base::MessageLoop::TYPE_UI);
+  ScopedViewsTestHelper helper;
+  TestPointerWatcher pointer_watcher1, pointer_watcher2;
+  PointerWatcherEventRouter2* pointer_watcher_event_router =
+      MusClient::Get()->pointer_watcher_event_router();
+  aura::WindowTreeClientPrivate test_api(
+      MusClient::Get()->window_tree_client());
+  EXPECT_FALSE(test_api.HasPointerWatcher());
+
+  // Start with no moves.
+  pointer_watcher_event_router->AddPointerWatcher(&pointer_watcher1, false);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::NON_MOVE_EVENTS,
+            event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Add moves.
+  pointer_watcher_event_router->AddPointerWatcher(&pointer_watcher2, true);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::MOVE_EVENTS, event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Remove no-moves.
+  pointer_watcher_event_router->RemovePointerWatcher(&pointer_watcher1);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::MOVE_EVENTS, event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Remove moves.
+  pointer_watcher_event_router->RemovePointerWatcher(&pointer_watcher2);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::NONE, event_types());
+  EXPECT_FALSE(test_api.HasPointerWatcher());
+
+  // Add moves.
+  pointer_watcher_event_router->AddPointerWatcher(&pointer_watcher2, true);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::MOVE_EVENTS, event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Add no moves.
+  pointer_watcher_event_router->AddPointerWatcher(&pointer_watcher1, false);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::MOVE_EVENTS, event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Remove moves.
+  pointer_watcher_event_router->RemovePointerWatcher(&pointer_watcher2);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::NON_MOVE_EVENTS,
+            event_types());
+  EXPECT_TRUE(test_api.HasPointerWatcher());
+
+  // Remove no-moves.
+  pointer_watcher_event_router->RemovePointerWatcher(&pointer_watcher1);
+  EXPECT_EQ(PointerWatcherEventRouter2::EventTypes::NONE, event_types());
+  EXPECT_FALSE(test_api.HasPointerWatcher());
+}
+
+TEST_F(PointerWatcherEventRouter2Test, PointerWatcherNoMove) {
+  base::MessageLoop message_loop(base::MessageLoop::TYPE_UI);
+  ScopedViewsTestHelper helper;
+  ASSERT_TRUE(MusClient::Get());
+  PointerWatcherEventRouter2* pointer_watcher_event_router =
+      MusClient::Get()->pointer_watcher_event_router();
+  ASSERT_TRUE(pointer_watcher_event_router);
+
+  ui::PointerEvent pointer_event_down(
+      ui::ET_POINTER_DOWN, gfx::Point(), gfx::Point(), ui::EF_NONE, 1, 0,
+      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH),
+      base::TimeTicks());
+  ui::PointerEvent pointer_event_up(
+      ui::ET_POINTER_UP, gfx::Point(), gfx::Point(), ui::EF_NONE, 1, 0,
+      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_MOUSE),
+      base::TimeTicks());
+  ui::PointerEvent pointer_event_wheel(
+      ui::ET_POINTER_WHEEL_CHANGED, gfx::Point(), gfx::Point(), ui::EF_NONE, 1,
+      0, ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_MOUSE),
+      base::TimeTicks());
+  ui::PointerEvent pointer_event_capture(
+      ui::ET_POINTER_CAPTURE_CHANGED, gfx::Point(), gfx::Point(), ui::EF_NONE,
+      1, 0, ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_MOUSE),
+      base::TimeTicks());
+
+  // PointerWatchers receive pointer down events.
+  TestPointerWatcher watcher1;
+  pointer_watcher_event_router->AddPointerWatcher(&watcher1, false);
+  OnPointerEventObserved(pointer_event_down);
+  EXPECT_EQ(ui::ET_POINTER_DOWN, watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // PointerWatchers receive pointer up events.
+  OnPointerEventObserved(pointer_event_up);
+  EXPECT_EQ(ui::ET_POINTER_UP, watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // PointerWatchers receive pointer wheel changed events.
+  OnPointerEventObserved(pointer_event_wheel);
+  EXPECT_EQ(ui::ET_POINTER_WHEEL_CHANGED,
+            watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // PointerWatchers receive pointer capture changed events.
+  OnPointerEventObserved(pointer_event_capture);
+  EXPECT_EQ(ui::ET_POINTER_CAPTURE_CHANGED,
+            watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // Two PointerWatchers can both receive a single observed event.
+  TestPointerWatcher watcher2;
+  pointer_watcher_event_router->AddPointerWatcher(&watcher2, false);
+  OnPointerEventObserved(pointer_event_down);
+  EXPECT_EQ(ui::ET_POINTER_DOWN, watcher1.last_event_observed()->type());
+  EXPECT_EQ(ui::ET_POINTER_DOWN, watcher2.last_event_observed()->type());
+  watcher1.Reset();
+  watcher2.Reset();
+
+  // Removing the first PointerWatcher stops sending events to it.
+  pointer_watcher_event_router->RemovePointerWatcher(&watcher1);
+  OnPointerEventObserved(pointer_event_down);
+  EXPECT_FALSE(watcher1.last_event_observed());
+  EXPECT_EQ(ui::ET_POINTER_DOWN, watcher2.last_event_observed()->type());
+  watcher1.Reset();
+  watcher2.Reset();
+
+  // Removing the last PointerWatcher stops sending events to it.
+  pointer_watcher_event_router->RemovePointerWatcher(&watcher2);
+  OnPointerEventObserved(pointer_event_down);
+  EXPECT_FALSE(watcher1.last_event_observed());
+  EXPECT_FALSE(watcher2.last_event_observed());
+}
+
+TEST_F(PointerWatcherEventRouter2Test, PointerWatcherMove) {
+  base::MessageLoop message_loop(base::MessageLoop::TYPE_UI);
+  ScopedViewsTestHelper helper;
+  ASSERT_TRUE(MusClient::Get());
+  PointerWatcherEventRouter2* pointer_watcher_event_router =
+      MusClient::Get()->pointer_watcher_event_router();
+  ASSERT_TRUE(pointer_watcher_event_router);
+
+  ui::PointerEvent pointer_event_down(
+      ui::ET_POINTER_DOWN, gfx::Point(), gfx::Point(), ui::EF_NONE, 1, 0,
+      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH),
+      base::TimeTicks());
+  ui::PointerEvent pointer_event_move(
+      ui::ET_POINTER_MOVED, gfx::Point(), gfx::Point(), ui::EF_NONE, 1, 0,
+      ui::PointerDetails(ui::EventPointerType::POINTER_TYPE_TOUCH),
+      base::TimeTicks());
+
+  // PointerWatchers receive pointer down events.
+  TestPointerWatcher watcher1;
+  pointer_watcher_event_router->AddPointerWatcher(&watcher1, true);
+  OnPointerEventObserved(pointer_event_down);
+  EXPECT_EQ(ui::ET_POINTER_DOWN, watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // PointerWatchers receive pointer move events.
+  OnPointerEventObserved(pointer_event_move);
+  EXPECT_EQ(ui::ET_POINTER_MOVED, watcher1.last_event_observed()->type());
+  watcher1.Reset();
+
+  // Two PointerWatchers can both receive a single observed event.
+  TestPointerWatcher watcher2;
+  pointer_watcher_event_router->AddPointerWatcher(&watcher2, true);
+  OnPointerEventObserved(pointer_event_move);
+  EXPECT_EQ(ui::ET_POINTER_MOVED, watcher1.last_event_observed()->type());
+  EXPECT_EQ(ui::ET_POINTER_MOVED, watcher2.last_event_observed()->type());
+  watcher1.Reset();
+  watcher2.Reset();
+
+  // Removing the first PointerWatcher stops sending events to it.
+  pointer_watcher_event_router->RemovePointerWatcher(&watcher1);
+  OnPointerEventObserved(pointer_event_move);
+  EXPECT_FALSE(watcher1.last_event_observed());
+  EXPECT_EQ(ui::ET_POINTER_MOVED, watcher2.last_event_observed()->type());
+  watcher1.Reset();
+  watcher2.Reset();
+
+  // Removing the last PointerWatcher stops sending events to it.
+  pointer_watcher_event_router->RemovePointerWatcher(&watcher2);
+  OnPointerEventObserved(pointer_event_move);
+  EXPECT_FALSE(watcher1.last_event_observed());
+  EXPECT_FALSE(watcher2.last_event_observed());
+}
+
+}  // namespace views