Moving input device hotplug event processing outside of ui/display

ui/display/chromeos/touchscreen_delegate_impl_unittest.cc

-// Copyright 2014 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 <vector>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/scoped_vector.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/display/chromeos/display_configurator.h"
-#include "ui/display/chromeos/test/test_display_snapshot.h"
-#include "ui/display/chromeos/touchscreen_delegate_impl.h"
-#include "ui/events/device_data_manager.h"
-#include "ui/events/device_hotplug_event_observer.h"
-
-namespace ui {
-
-class TouchscreenDelegateImplTest : public testing::Test {
- public:
-  TouchscreenDelegateImplTest() {
-    DeviceDataManager::CreateInstance();
-    device_delegate_ = DeviceDataManager::GetInstance();
-  }
-  virtual ~TouchscreenDelegateImplTest() {}
-
-  virtual void SetUp() OVERRIDE {
-    touchscreen_delegate_.reset(new TouchscreenDelegateImpl());
-
-    // Internal display will always match to internal touchscreen. If internal
-    // touchscreen can't be detected, it is then associated to a touch screen
-    // with matching size.
-    TestDisplaySnapshot* snapshot = new TestDisplaySnapshot();
-    DisplayMode* mode = new DisplayMode(gfx::Size(1920, 1080), false, 60.0);
-    snapshot->set_type(DISPLAY_CONNECTION_TYPE_INTERNAL);
-    snapshot->set_modes(std::vector<const DisplayMode*>(1, mode));
-    snapshot->set_native_mode(mode);
-    displays_.push_back(snapshot);
-
-    snapshot = new TestDisplaySnapshot();
-    mode = new DisplayMode(gfx::Size(800, 600), false, 60.0);
-    snapshot->set_modes(std::vector<const DisplayMode*>(1, mode));
-    snapshot->set_native_mode(mode);
-    displays_.push_back(snapshot);
-
-    // Display without native mode. Must not be matched to any touch screen.
-    displays_.push_back(new TestDisplaySnapshot());
-
-    snapshot = new TestDisplaySnapshot();
-    mode = new DisplayMode(gfx::Size(1024, 768), false, 60.0);
-    snapshot->set_modes(std::vector<const DisplayMode*>(1, mode));
-    snapshot->set_native_mode(mode);
-    displays_.push_back(snapshot);
-  }
-
-  virtual void TearDown() OVERRIDE {
-    // The snapshots do not own the modes, so we need to delete them.
-    for (size_t i = 0; i < displays_.size(); ++i) {
-      if (displays_[i]->native_mode())
-        delete displays_[i]->native_mode();
-    }
-
-    displays_.clear();
-    device_delegate_->OnTouchscreenDevicesUpdated(
-        std::vector<TouchscreenDevice>());
-  }
-
-  std::vector<DisplayConfigurator::DisplayState> GetDisplayStates() {
-    std::vector<DisplayConfigurator::DisplayState> states(displays_.size());
-    for (size_t i = 0; i < displays_.size(); ++i)
-      states[i].display = displays_[i];
-
-    return states;
-  }
-
- protected:
-  scoped_ptr<TouchscreenDelegateImpl> touchscreen_delegate_;
-  ScopedVector<DisplaySnapshot> displays_;
-  DeviceHotplugEventObserver* device_delegate_;  // Not owned.
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(TouchscreenDelegateImplTest);
-};
-
-TEST_F(TouchscreenDelegateImplTest, NoTouchscreens) {
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  for (size_t i = 0; i < display_states.size(); ++i)
-    EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[i].touch_device_id);
-}
-
-TEST_F(TouchscreenDelegateImplTest, OneToOneMapping) {
-  std::vector<TouchscreenDevice> devices;
-  devices.push_back(TouchscreenDevice(1, gfx::Size(800, 600), false));
-  devices.push_back(TouchscreenDevice(2, gfx::Size(1024, 768), false));
-  device_delegate_->OnTouchscreenDevicesUpdated(devices);
-
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[0].touch_device_id);
-  EXPECT_EQ(1, display_states[1].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[2].touch_device_id);
-  EXPECT_EQ(2, display_states[3].touch_device_id);
-}
-
-TEST_F(TouchscreenDelegateImplTest, MapToCorrectDisplaySize) {
-  std::vector<TouchscreenDevice> devices;
-  devices.push_back(TouchscreenDevice(2, gfx::Size(1024, 768), false));
-  device_delegate_->OnTouchscreenDevicesUpdated(devices);
-
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[0].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[1].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[2].touch_device_id);
-  EXPECT_EQ(2, display_states[3].touch_device_id);
-}
-
-TEST_F(TouchscreenDelegateImplTest, MapWhenSizeDiffersByOne) {
-  std::vector<TouchscreenDevice> devices;
-  devices.push_back(TouchscreenDevice(1, gfx::Size(801, 600), false));
-  devices.push_back(TouchscreenDevice(2, gfx::Size(1023, 768), false));
-  device_delegate_->OnTouchscreenDevicesUpdated(devices);
-
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[0].touch_device_id);
-  EXPECT_EQ(1, display_states[1].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[2].touch_device_id);
-  EXPECT_EQ(2, display_states[3].touch_device_id);
-}
-
-TEST_F(TouchscreenDelegateImplTest, MapWhenSizesDoNotMatch) {
-  std::vector<TouchscreenDevice> devices;
-  devices.push_back(TouchscreenDevice(1, gfx::Size(1022, 768), false));
-  devices.push_back(TouchscreenDevice(2, gfx::Size(802, 600), false));
-  device_delegate_->OnTouchscreenDevicesUpdated(devices);
-
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[0].touch_device_id);
-  EXPECT_EQ(1, display_states[1].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[2].touch_device_id);
-  EXPECT_EQ(2, display_states[3].touch_device_id);
-}
-
-TEST_F(TouchscreenDelegateImplTest, MapInternalTouchscreen) {
-  std::vector<TouchscreenDevice> devices;
-  devices.push_back(TouchscreenDevice(1, gfx::Size(1920, 1080), false));
-  devices.push_back(TouchscreenDevice(2, gfx::Size(9999, 888), true));
-  device_delegate_->OnTouchscreenDevicesUpdated(devices);
-
-  std::vector<DisplayConfigurator::DisplayState> display_states =
-      GetDisplayStates();
-  touchscreen_delegate_->AssociateTouchscreens(&display_states);
-
-  // Internal touchscreen is always mapped to internal display.
-  EXPECT_EQ(2, display_states[0].touch_device_id);
-  EXPECT_EQ(1, display_states[1].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[2].touch_device_id);
-  EXPECT_EQ(TouchscreenDevice::kInvalidId, display_states[3].touch_device_id);
-}
-
-}  // namespace ui