Renderer reading side of gamepad

content/browser/gamepad/data_fetcher_win.cc

 // Copyright (c) 2011 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 "content/browser/gamepad/data_fetcher_win.h"
 
 #include "base/debug/trace_event.h"
 #include "content/common/gamepad_messages.h"
 #include "content/common/gamepad_hardware_buffer.h"
 
 #include <delayimp.h>
 
 #pragma comment(lib, "delayimp.lib")
 #pragma comment(lib, "xinput.lib")
 
-namespace gamepad {
+namespace content {
 
 using namespace WebKit;
 
 namespace {
 
 // See http://goo.gl/5VSJR. These are not available in all versions of the
 // header, but they can be returned from the driver, so we define our own
 // versions here.
 static const BYTE kDeviceSubTypeGamepad = 1;
 static const BYTE kDeviceSubTypeWheel = 2;
@@ skipping 44 matching lines @@
   __try {
     XInputEnable(true);
   } __except(DelayLoadDllExceptionFilter(GetExceptionInformation())) {
     return false;
   }
   return true;
 }
 
 }
 
-DataFetcherWindows::DataFetcherWindows()
+GamepadDataFetcherWindows::GamepadDataFetcherWindows()
     : xinput_available_(EnableXInput()) {
 }
 
-void DataFetcherWindows::GetGamepadData(WebGamepads* pads,
+void GamepadDataFetcherWindows::GetGamepadData(WebGamepads* pads,
                                         bool devices_changed_hint) {
-  TRACE_EVENT0("GAMEPAD", "DataFetcherWindows::GetGamepadData");
+  TRACE_EVENT0("GAMEPAD", "GetGamepadData");
 
   // If there's no XInput DLL on the system, early out so that we don't
   // call any other XInput functions.
   if (!xinput_available_) {
     pads->length = 0;
     return;
   }
 
   pads->length = WebGamepads::itemsLengthCap;
 
   // If we got notification that system devices have been updated, then
   // run GetCapabilities to update the connected status and the device
   // identifier. It can be slow to do to both GetCapabilities and
   // GetState on unconnected devices, so we want to avoid a 2-5ms pause
   // here by only doing this when the devices are updated (despite
   // documentation claiming it's OK to call it any time).
   if (devices_changed_hint) {
     for (unsigned i = 0; i < WebGamepads::itemsLengthCap; ++i) {
       WebGamepad& pad = pads->items[i];
-      TRACE_EVENT1("GAMEPAD", "DataFetcherWindows::GetCapabilities", "id", i);
+      TRACE_EVENT1("GAMEPAD", "GetCapabilities", "id", i);
       XINPUT_CAPABILITIES caps;
       DWORD res = XInputGetCapabilities(i, XINPUT_FLAG_GAMEPAD, &caps);
       if (res == ERROR_DEVICE_NOT_CONNECTED) {
         pad.connected = false;
       } else {
         pad.connected = true;
         base::swprintf(pad.id,
                        WebGamepad::idLengthCap,
                        L"Xbox 360 Controller (XInput %ls)",
                        GamepadSubTypeName(caps.SubType));
@@ skipping 45 matching lines @@
       pad.axes[pad.axesLength++] = state.Gamepad.sThumbLX / 32767.0;
       pad.axes[pad.axesLength++] = -state.Gamepad.sThumbLY / 32767.0;
       pad.axes[pad.axesLength++] = state.Gamepad.sThumbRX / 32767.0;
       pad.axes[pad.axesLength++] = -state.Gamepad.sThumbRY / 32767.0;
     } else {
       pad.connected = false;
     }
   }
 }
 
-} // namespace gamepad
+} // namespace content