ozone: evdev: Populate keyboard list on DeviceDataManager

ui/events/ozone/evdev/event_device_info.cc

 // Copyright 2013 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_device_info.h"
 
 #include <linux/input.h>
 
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 215 matching lines @@
 
   // Touchpads are not mapped to the screen.
   if (HasKeyEvent(BTN_LEFT) || HasKeyEvent(BTN_MIDDLE) ||
       HasKeyEvent(BTN_RIGHT) || HasKeyEvent(BTN_TOOL_FINGER))
     return false;
 
   // Touchscreens are mapped to the screen.
   return true;
 }
 
+bool EventDeviceInfo::HasKeyboard() const {
+  if (!HasEventType(EV_KEY))
+    return false;
+
+  // Check first 31 keys: If we have all of them, consider it a full
+  // keyboard. This is exactly what udev does for ID_INPUT_KEYBOARD.
+  for (int key = KEY_ESC; key <= KEY_D; ++key)

[sadrul, 2014/12/11 15:41:37]

{}?

+    if (!HasKeyEvent(key))
+      return false;
+
+  return true;
+}
+
 const std::vector<int32_t>& EventDeviceInfo::GetMtSlotsForCode(int code) const {
   int index = code - ABS_MT_SLOT - 1;
   DCHECK_LE(0, index) << code << " is not a valid multi-touch code";
   DCHECK_LT(index, EVDEV_ABS_MT_COUNT)
       << code << " is not a valid multi-touch code";
   return slot_values_[index];
 }
 
 }  // namespace ui