Implement hit tests/client area.

ui/aura/mus/window_tree_host_mus_unittest.cc

Index: ui/aura/mus/window_tree_host_mus_unittest.cc
diff --git a/ui/aura/mus/window_tree_host_mus_unittest.cc b/ui/aura/mus/window_tree_host_mus_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..7e69dc9253ba7ae5a09bf33d0d371abb137c1621
--- /dev/null
+++ b/ui/aura/mus/window_tree_host_mus_unittest.cc
@@ -0,0 +1,133 @@
+// 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/aura/mus/window_tree_host_mus.h"
+
+#include "base/message_loop/message_loop.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/aura/client/default_capture_client.h"
+#include "ui/aura/client/focus_client.h"
+#include "ui/aura/env.h"
+#include "ui/aura/mus/property_converter.h"
+#include "ui/aura/mus/window_port_mus.h"
+#include "ui/aura/mus/window_tree_client_delegate.h"
+#include "ui/aura/mus/window_tree_host_mus.h"
+#include "ui/aura/test/env_test_helper.h"
+#include "ui/aura/test/mus/test_window_tree.h"
+#include "ui/aura/test/mus/test_window_tree_client_setup.h"
+#include "ui/aura/test/test_focus_client.h"
+#include "ui/aura/test/test_screen.h"
+#include "ui/aura/window_port_local.h"
+#include "ui/compositor/test/context_factories_for_test.h"
+#include "ui/wm/core/wm_state.h"
+
+namespace aura {
+
+// AuraMusClientTestBase doesn't appear to be going through the
+// WindowTreeHostMus path at all. So instead, we create a minimal environment
+// where we build our own TestWindowTree and Window.
+class WindowTreeHostMusTest : public testing::Test,
+                              public aura::WindowTreeClientDelegate {
+ public:
+  WindowTreeHostMusTest() {}
+  ~WindowTreeHostMusTest() override {}
+
+  void SetUp() override {
+    Test::SetUp();
+    wm_state_ = base::MakeUnique<wm::WMState>();
+    focus_client_ = base::MakeUnique<test::TestFocusClient>();
+    capture_client_ = base::MakeUnique<client::DefaultCaptureClient>();
+    property_converter_ = base::MakeUnique<aura::PropertyConverter>();
+
+    // The ContextFactory must exist before any Compositors are created.
+    bool enable_pixel_output = false;
+    ui::ContextFactory* context_factory =
+        ui::InitializeContextFactoryForTests(enable_pixel_output);
+
+    if (!Env::GetInstanceDontCreate())
+      env_ = Env::CreateInstance(Env::Mode::MUS);
+    Env::GetInstance()->set_context_factory(context_factory);
+
+    window_tree_client_setup_ = base::MakeUnique<TestWindowTreeClientSetup>();
+    window_tree_client_setup_->Init(this);
+
+    test_screen_.reset(TestScreen::Create(gfx::Size(800, 600)));
+    display::Screen::SetScreenInstance(test_screen_.get());
+
+    window_tree_host_mus_ =
+        base::MakeUnique<WindowTreeHostMus>(window_tree_client());
+  }
+
+  void TearDown() override {
+    window_tree_host_mus_.reset();
+    if (display::Screen::GetScreen() == test_screen_.get())
+      display::Screen::SetScreenInstance(nullptr);
+    window_tree_client_setup_.reset();
+
+    ui::TerminateContextFactoryForTests();
+    Test::TearDown();
+  }
+
+  WindowTreeHostMus* window_tree_host_mus() {
+    return window_tree_host_mus_.get();
+  }
+
+  TestWindowTree* test_window_tree() {
+    return window_tree_client_setup_->window_tree();
+  }
+
+  WindowTreeClient* window_tree_client() {
+    return window_tree_client_setup_->window_tree_client();
+  }
+
+ private:
+  // WindowTreeClientDelegate:
+  void OnEmbed(
+      std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) override {}
+  void OnLostConnection(aura::WindowTreeClient* client) override {}
+  void OnEmbedRootDestroyed(aura::Window* root) override {}
+  void OnPointerEventObserved(const ui::PointerEvent& event,
+                              aura::Window* target) override {}
+  aura::client::CaptureClient* GetCaptureClient() override {
+    return capture_client_.get();
+  }
+  aura::PropertyConverter* GetPropertyConverter() override {
+    return property_converter_.get();
+  }
+
+  // Needed by the compositor.
+  base::MessageLoopForUI message_loop_;
+
+  std::unique_ptr<aura::Env> env_;
+
+  std::unique_ptr<wm::WMState> wm_state_;
+  std::unique_ptr<client::DefaultCaptureClient> capture_client_;
+  std::unique_ptr<client::FocusClient> focus_client_;
+  std::unique_ptr<aura::PropertyConverter> property_converter_;
+  std::unique_ptr<TestWindowTreeClientSetup> window_tree_client_setup_;
+  std::unique_ptr<TestScreen> test_screen_;
+
+  std::unique_ptr<aura::WindowTreeHostMus> window_tree_host_mus_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostMusTest);
+};
+
+TEST_F(WindowTreeHostMusTest, UpdateClientArea) {
+  gfx::Insets new_insets(10, 11, 12, 13);
+  window_tree_host_mus()->SetClientArea(new_insets);
+  EXPECT_EQ(new_insets, test_window_tree()->last_client_area());
+}
+
+TEST_F(WindowTreeHostMusTest, SetHitTestMask) {
+  EXPECT_FALSE(test_window_tree()->last_hit_test_mask().has_value());
+  gfx::Rect mask(10, 10, 10, 10);
+  window_tree_host_mus()->SetHitTestMask(mask);
+  ASSERT_TRUE(test_window_tree()->last_hit_test_mask().has_value());
+  EXPECT_EQ(mask, test_window_tree()->last_hit_test_mask());
+
+  window_tree_host_mus()->ClearHitTestMask();
+  ASSERT_FALSE(test_window_tree()->last_hit_test_mask().has_value());
+}
+
+}  // namespace aura