[ozone/wayland] Implement basic keyboard handling support

ui/ozone/platform/wayland/wayland_keyboard_unittest.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 <linux/input.h>
+#include <wayland-server.h>
+
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/events/event.h"
+#include "ui/ozone/platform/wayland/fake_server.h"
+#include "ui/ozone/platform/wayland/mock_platform_window_delegate.h"
+#include "ui/ozone/platform/wayland/wayland_test.h"
+#include "ui/ozone/platform/wayland/wayland_window.h"
+
+using ::testing::SaveArg;
+using ::testing::_;
+
+namespace ui {
+
+class WaylandKeyboardTest : public WaylandTest {
+ public:
+  WaylandKeyboardTest() {}
+
+  void SetUp() override {
+    WaylandTest::SetUp();
+
+    wl_seat_send_capabilities(server.seat()->resource(),
+                              WL_SEAT_CAPABILITY_KEYBOARD);
+
+    Sync();
+
+    keyboard = server.seat()->keyboard.get();
+    ASSERT_TRUE(keyboard);
+  }
+
+ protected:
+  wl::MockKeyboard* keyboard;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WaylandKeyboardTest);
+};
+
+ACTION_P(CloneEvent, ptr) {
+  *ptr = Event::Clone(*arg0);
+}
+
+TEST_F(WaylandKeyboardTest, Keypress) {
+  struct wl_array empty;
+  wl_array_init(&empty);
+  wl_keyboard_send_enter(keyboard->resource(), 1, surface->resource(), &empty);
+  wl_array_release(&empty);
+
+  wl_keyboard_send_key(keyboard->resource(), 2, 0, 30 /* a */,
+                       WL_KEYBOARD_KEY_STATE_PRESSED);
+
+  std::unique_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+
+  Sync();
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsKeyEvent());
+
+  auto key_event = event->AsKeyEvent();
+  EXPECT_EQ(ui::VKEY_A, key_event->key_code());
+  EXPECT_EQ(ET_KEY_PRESSED, key_event->type());
+
+  wl_keyboard_send_leave(keyboard->resource(), 3, surface->resource());
+
+  Sync();
+
+  wl_keyboard_send_key(keyboard->resource(), 3, 0, 30 /* a */,
+                       WL_KEYBOARD_KEY_STATE_PRESSED);
+  EXPECT_CALL(delegate, DispatchEvent(_)).Times(0);
+}
+
+}  // namespace ui