ozone: evdev: Add gamepad support

ui/events/ozone/evdev/event_factory_evdev.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 "ui/events/ozone/evdev/event_factory_evdev.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 24 matching lines @@
 class ProxyDeviceEventDispatcher : public DeviceEventDispatcherEvdev {
  public:
   ProxyDeviceEventDispatcher(
       scoped_refptr<base::SingleThreadTaskRunner> ui_thread_runner,
       base::WeakPtr<EventFactoryEvdev> event_factory_evdev)
       : ui_thread_runner_(ui_thread_runner),
         event_factory_evdev_(event_factory_evdev) {}
   ~ProxyDeviceEventDispatcher() override {}
 
   // DeviceEventDispatcher:
+  void DispatchGamepadEvent(const GamepadEventParams& params) override {
+    ui_thread_runner_->PostTask(
+        FROM_HERE, base::Bind(&EventFactoryEvdev::DispatchGamepadEvent,
+                              event_factory_evdev_, params));
+  }
   void DispatchKeyEvent(const KeyEventParams& params) override {
     ui_thread_runner_->PostTask(FROM_HERE,
                                 base::Bind(&EventFactoryEvdev::DispatchKeyEvent,
                                            event_factory_evdev_, params));
   }
 
   void DispatchMouseMoveEvent(const MouseMoveEventParams& params) override {
     ui_thread_runner_->PostTask(
         FROM_HERE, base::Bind(&EventFactoryEvdev::DispatchMouseMoveEvent,
                               event_factory_evdev_, params));
@@ skipping 22 matching lines @@
         FROM_HERE, base::Bind(&EventFactoryEvdev::DispatchScrollEvent,
                               event_factory_evdev_, params));
   }
 
   void DispatchTouchEvent(const TouchEventParams& params) override {
     ui_thread_runner_->PostTask(
         FROM_HERE, base::Bind(&EventFactoryEvdev::DispatchTouchEvent,
                               event_factory_evdev_, params));
   }
 
+  void DispatchGamepadDevicesUpdated(
+      const std::vector<InputDevice>& devices) override {
+    ui_thread_runner_->PostTask(
+        FROM_HERE, base::Bind(&EventFactoryEvdev::DispatchGamepadDevicesUpdated,
+                              event_factory_evdev_, devices));
+  }
+
   void DispatchKeyboardDevicesUpdated(
       const std::vector<InputDevice>& devices) override {
     ui_thread_runner_->PostTask(
         FROM_HERE,
         base::Bind(&EventFactoryEvdev::DispatchKeyboardDevicesUpdated,
                    event_factory_evdev_, devices));
   }
   void DispatchTouchscreenDevicesUpdated(
       const std::vector<TouchscreenDevice>& devices) override {
     ui_thread_runner_->PostTask(
@@ skipping 90 matching lines @@
   // Use forwarding dispatcher for the injector rather than dispatching
   // directly. We cannot assume it is safe to (re-)enter ui::Event dispatch
   // synchronously from the injection point.
   std::unique_ptr<DeviceEventDispatcherEvdev> proxy_dispatcher(
       new ProxyDeviceEventDispatcher(base::ThreadTaskRunnerHandle::Get(),
                                      weak_ptr_factory_.GetWeakPtr()));
   return base::MakeUnique<InputInjectorEvdev>(std::move(proxy_dispatcher),
                                               cursor_);
 }
 
+void EventFactoryEvdev::DispatchGamepadEvent(const GamepadEventParams& params) {
+  TRACE_EVENT1("evdev", "EventFactoryEvdev::DispatchGamepadEvent", "device",
+               params.device_id);
+  GamepadEvent event(params.type, params.value, params.code, params.timestamp);
+  event.set_source_device_id(params.device_id);
+  DispatchUiEvent(&event);
+}
+
 void EventFactoryEvdev::DispatchKeyEvent(const KeyEventParams& params) {
   TRACE_EVENT1("evdev", "EventFactoryEvdev::DispatchKeyEvent", "device",
                params.device_id);
   keyboard_.OnKeyChange(params.code, params.down, params.suppress_auto_repeat,
                         params.timestamp, params.device_id);
 }
 
 void EventFactoryEvdev::DispatchMouseMoveEvent(
     const MouseMoveEventParams& params) {
   TRACE_EVENT1("evdev", "EventFactoryEvdev::DispatchMouseMoveEvent", "device",
@@ skipping 141 matching lines @@
     touch_id_generator_.ReleaseGeneratedID(touch_event.pointer_details().id);
   }
 }
 
 void EventFactoryEvdev::DispatchUiEvent(Event* event) {
   // DispatchEvent takes PlatformEvent which is void*. This function
   // wraps it with the real type.
   DispatchEvent(event);
 }
 
+void EventFactoryEvdev::DispatchGamepadDevicesUpdated(
+    const std::vector<InputDevice>& devices) {
+  TRACE_EVENT0("evdev", "EventFactoryEvdev::DispatchGamepadDevicesUpdated");
+  DeviceHotplugEventObserver* observer = DeviceDataManager::GetInstance();
+  observer->OnGamepadDevicesUpdated(devices);
+}
+
 void EventFactoryEvdev::DispatchKeyboardDevicesUpdated(
     const std::vector<InputDevice>& devices) {
   TRACE_EVENT0("evdev", "EventFactoryEvdev::DispatchKeyboardDevicesUpdated");
   DeviceHotplugEventObserver* observer = DeviceDataManager::GetInstance();
   observer->OnKeyboardDevicesUpdated(devices);
 }
 
 void EventFactoryEvdev::DispatchTouchscreenDevicesUpdated(
     const std::vector<TouchscreenDevice>& devices) {
   TRACE_EVENT0("evdev", "EventFactoryEvdev::DispatchTouchscreenDevicesUpdated");
@@ skipping 100 matching lines @@
 
   // Scan & monitor devices.
   device_manager_->AddObserver(this);
   device_manager_->ScanDevices(this);
 
   // Notify device thread that initial scan is done.
   input_device_factory_proxy_->OnStartupScanComplete();
 }
 
 }  // namespace ui