ozone/platform/wayland: Implement pointer handling

ui/ozone/platform/wayland/wayland_pointer_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 <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_display.h"
+#include "ui/ozone/platform/wayland/wayland_window.h"
+
+using ::testing::_;
+
+namespace ui {
+
+class WaylandPointerTest : public testing::Test {
+ public:
+  WaylandPointerTest()
+      : window(&delegate, &display, gfx::Rect(0, 0, 800, 600)) {}
+
+  void SetUp() override {
+    ASSERT_TRUE(server.Start());
+    ASSERT_TRUE(display.Initialize());
+    ASSERT_TRUE(window.Initialize());
+    wl_display_roundtrip(display.display());
+
+    server.Pause();
+
+    surface = server.GetObject<wl::MockSurface>(window.GetWidget());
+    ASSERT_TRUE(surface);
+    wl_seat_send_capabilities(server.seat()->resource(),
+                              WL_SEAT_CAPABILITY_POINTER);
+    server.Flush();
+
+    Sync();
+
+    ASSERT_TRUE(surface->resource());
+    pointer = server.seat()->pointer.get();
+    ASSERT_TRUE(pointer);
+    initialized = true;
+  }
+
+  void TearDown() override {
+    server.Resume();
+    if (initialized)
+      wl_display_roundtrip(display.display());
+  }
+
+  void Sync() {
+    server.Resume();
+    wl_display_roundtrip(display.display());
+    server.Pause();
+  }
+
+ protected:
+  wl::FakeServer server;
+  WaylandDisplay display;
+  MockPlatformWindowDelegate delegate;
+  WaylandWindow window;
+
+  wl::MockPointer* pointer;
+  wl::MockSurface* surface;
+
+ private:
+  bool initialized = false;
+
+  DISALLOW_COPY_AND_ASSIGN(WaylandPointerTest);
+};
+
+TEST_F(WaylandPointerTest, Leave) {
+  MockPlatformWindowDelegate other_delegate;
+  WaylandWindow other_window(&other_delegate, &display,
+                             gfx::Rect(0, 0, 10, 10));
+  ASSERT_TRUE(other_window.Initialize());
+
+  Sync();
+
+  wl::MockSurface* other_surface =
+      server.GetObject<wl::MockSurface>(other_window.GetWidget());
+  ASSERT_TRUE(other_surface);
+
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(), 0, 0);
+  wl_pointer_send_leave(pointer->resource(), 2, surface->resource());
+  wl_pointer_send_enter(pointer->resource(), 3, other_surface->resource(), 0,
+                        0);
+  wl_pointer_send_button(pointer->resource(), 4, 1004, BTN_LEFT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+  EXPECT_CALL(delegate, DispatchEvent(_)).Times(0);
+
+  // Do an extra Sync() here so that we process the second enter event before we
+  // destroy |other_window|.
+  Sync();
+}
+
+ACTION_P(CloneEvent, ptr) {
+  *ptr = Event::Clone(*arg0);
+}
+
+TEST_F(WaylandPointerTest, Motion) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(), 0, 0);
+  wl_pointer_send_motion(pointer->resource(), 1002, wl_fixed_from_double(10.75),
+                         wl_fixed_from_double(20.375));
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseEvent());
+  auto mouse_event = static_cast<MouseEvent*>(event.get());
+  EXPECT_EQ(ET_MOUSE_MOVED, mouse_event->type());
+  EXPECT_EQ(0, mouse_event->button_flags());
+  EXPECT_EQ(0, mouse_event->changed_button_flags());
+  // TODO(forney): Once crbug.com/337827 is solved, compare with the fractional
+  // coordinates sent above.
+  EXPECT_EQ(gfx::PointF(10, 20), mouse_event->location_f());
+  EXPECT_EQ(gfx::PointF(10, 20), mouse_event->root_location_f());
+}
+
+TEST_F(WaylandPointerTest, MotionDragged) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(), 0, 0);
+  wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_MIDDLE,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+  wl_pointer_send_motion(pointer->resource(), 1003, wl_fixed_from_int(400),
+                         wl_fixed_from_int(500));
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseEvent());
+  auto mouse_event = static_cast<MouseEvent*>(event.get());
+  EXPECT_EQ(ET_MOUSE_DRAGGED, mouse_event->type());
+  EXPECT_EQ(EF_MIDDLE_MOUSE_BUTTON, mouse_event->button_flags());
+  EXPECT_EQ(0, mouse_event->changed_button_flags());
+  EXPECT_EQ(gfx::PointF(400, 500), mouse_event->location_f());
+  EXPECT_EQ(gfx::PointF(400, 500), mouse_event->root_location_f());
+}
+
+TEST_F(WaylandPointerTest, ButtonPress) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(),
+                        wl_fixed_from_int(200), wl_fixed_from_int(150));
+  wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_RIGHT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+  wl_pointer_send_button(pointer->resource(), 3, 1003, BTN_LEFT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseEvent());
+  auto mouse_event = static_cast<MouseEvent*>(event.get());
+  EXPECT_EQ(ET_MOUSE_PRESSED, mouse_event->type());
+  EXPECT_EQ(EF_LEFT_MOUSE_BUTTON | EF_RIGHT_MOUSE_BUTTON,
+            mouse_event->button_flags());
+  EXPECT_EQ(EF_LEFT_MOUSE_BUTTON, mouse_event->changed_button_flags());
+  EXPECT_EQ(gfx::PointF(200, 150), mouse_event->location_f());
+  EXPECT_EQ(gfx::PointF(200, 150), mouse_event->root_location_f());
+}
+
+TEST_F(WaylandPointerTest, ButtonRelease) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(),
+                        wl_fixed_from_int(50), wl_fixed_from_int(50));
+  wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_BACK,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+  wl_pointer_send_button(pointer->resource(), 3, 1003, BTN_LEFT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+  wl_pointer_send_button(pointer->resource(), 4, 1004, BTN_LEFT,
+                         WL_POINTER_BUTTON_STATE_RELEASED);
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseEvent());
+  auto mouse_event = static_cast<MouseEvent*>(event.get());
+  EXPECT_EQ(ET_MOUSE_RELEASED, mouse_event->type());
+  EXPECT_EQ(EF_LEFT_MOUSE_BUTTON | EF_BACK_MOUSE_BUTTON,
+            mouse_event->button_flags());
+  EXPECT_EQ(EF_LEFT_MOUSE_BUTTON, mouse_event->changed_button_flags());
+  EXPECT_EQ(gfx::PointF(50, 50), mouse_event->location_f());
+  EXPECT_EQ(gfx::PointF(50, 50), mouse_event->root_location_f());
+}
+
+TEST_F(WaylandPointerTest, AxisVertical) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(),
+                        wl_fixed_from_int(0), wl_fixed_from_int(0));
+  wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_RIGHT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+  // Wayland servers typically send a value of 10 per mouse wheel click.
+  wl_pointer_send_axis(pointer->resource(), 1003,
+                       WL_POINTER_AXIS_VERTICAL_SCROLL, wl_fixed_from_int(20));
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseWheelEvent());
+  auto mouse_wheel_event = static_cast<MouseWheelEvent*>(event.get());
+  EXPECT_EQ(gfx::Vector2d(0, -2 * MouseWheelEvent::kWheelDelta),
+            mouse_wheel_event->offset());
+  EXPECT_EQ(EF_RIGHT_MOUSE_BUTTON, mouse_wheel_event->button_flags());
+  EXPECT_EQ(0, mouse_wheel_event->changed_button_flags());
+  EXPECT_EQ(gfx::PointF(), mouse_wheel_event->location_f());
+  EXPECT_EQ(gfx::PointF(), mouse_wheel_event->root_location_f());
+}
+
+TEST_F(WaylandPointerTest, AxisHorizontal) {
+  wl_pointer_send_enter(pointer->resource(), 1, surface->resource(),
+                        wl_fixed_from_int(50), wl_fixed_from_int(75));
+  wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_LEFT,
+                         WL_POINTER_BUTTON_STATE_PRESSED);
+
+  Sync();
+
+  scoped_ptr<Event> event;
+  EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
+  // Wayland servers typically send a value of 10 per mouse wheel click.
+  wl_pointer_send_axis(pointer->resource(), 1003,
+                       WL_POINTER_AXIS_HORIZONTAL_SCROLL,
+                       wl_fixed_from_int(10));
+
+  Sync();
+
+  ASSERT_TRUE(event);
+  ASSERT_TRUE(event->IsMouseWheelEvent());
+  auto mouse_wheel_event = static_cast<MouseWheelEvent*>(event.get());
+  EXPECT_EQ(gfx::Vector2d(MouseWheelEvent::kWheelDelta, 0),
+            mouse_wheel_event->offset());
+  EXPECT_EQ(EF_LEFT_MOUSE_BUTTON, mouse_wheel_event->button_flags());
+  EXPECT_EQ(0, mouse_wheel_event->changed_button_flags());
+  EXPECT_EQ(gfx::PointF(50, 75), mouse_wheel_event->location_f());
+  EXPECT_EQ(gfx::PointF(50, 75), mouse_wheel_event->root_location_f());
+}
+
+}  // namespace ui