Move touchscreen device caching to DeviceDataManager

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/display/types/chromeos/touchscreen_device_manager.h"
+#include "ui/events/device_data_manager.h"
+#include "ui/events/device_hotplug_event_observer.h"
 
 namespace ui {
 
-namespace {
-
-class MockTouchscreenDeviceManager : public TouchscreenDeviceManager {
- public:
-  MockTouchscreenDeviceManager() {}
-  virtual ~MockTouchscreenDeviceManager() {}
-
-  void AddDevice(const TouchscreenDevice& device) {
-    devices_.push_back(device);
-  }
-
-  // TouchscreenDeviceManager overrides:
-  virtual std::vector<TouchscreenDevice> GetDevices() OVERRIDE {
-    return devices_;
-  }
-
- private:
-  std::vector<TouchscreenDevice> devices_;
-
-  DISALLOW_COPY_AND_ASSIGN(MockTouchscreenDeviceManager);
-};
-
-}  // namespace
-
 class TouchscreenDelegateImplTest : public testing::Test {
  public:
-  TouchscreenDelegateImplTest() {}
+  TouchscreenDelegateImplTest() {
+    DeviceDataManager::CreateInstance();
+    device_delegate_ = DeviceDataManager::GetInstance();
+  }
   virtual ~TouchscreenDelegateImplTest() {}
 
   virtual void SetUp() OVERRIDE {
-    device_manager_ = new MockTouchscreenDeviceManager();
-    delegate_.reset(new TouchscreenDelegateImpl(
-        scoped_ptr<TouchscreenDeviceManager>(device_manager_)));
+    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);
@@ skipping 15 matching lines @@
   }
 
   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:
-  MockTouchscreenDeviceManager* device_manager_;  // Not owned.
-  scoped_ptr<TouchscreenDelegateImpl> delegate_;
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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) {
-  device_manager_->AddDevice(TouchscreenDevice(1, gfx::Size(800, 600), false));
-  device_manager_->AddDevice(TouchscreenDevice(2, gfx::Size(1024, 768), false));
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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) {
-  device_manager_->AddDevice(TouchscreenDevice(2, gfx::Size(1024, 768), false));
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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) {
-  device_manager_->AddDevice(TouchscreenDevice(1, gfx::Size(801, 600), false));
-  device_manager_->AddDevice(TouchscreenDevice(2, gfx::Size(1023, 768), false));
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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) {
-  device_manager_->AddDevice(TouchscreenDevice(1, gfx::Size(1022, 768), false));
-  device_manager_->AddDevice(TouchscreenDevice(2, gfx::Size(802, 600), false));
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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) {
-  device_manager_->AddDevice(
-      TouchscreenDevice(1, gfx::Size(1920, 1080), false));
-  device_manager_->AddDevice(TouchscreenDevice(2, gfx::Size(9999, 888), true));
+  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();
-  delegate_->AssociateTouchscreens(&display_states);
+  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