Add nazoru-input in mozc-nazoru/

mozc-nazoru/src/nazoru/bluetooth.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2018 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import serial
+import struct
+
+class Bluetooth():
+  DEVICE_FILE = '/dev/serial0'
+  BAUDRATE = 115200
+
+  def __init__(self):
+    try:
+      self._conn = serial.Serial(self.DEVICE_FILE, self.BAUDRATE)
+      self._dummy = False
+      print('Bluetooth')
+    except serial.SerialException:
+      self._conn = None
+      self._dummy = True
+      print('Dummy Bluetooth')
+
+  def send(self, string):
+    """Send |string| as a series of characters. |string| should be
+       alphabets, numbers and symbols which can be typed from your keyboard."""
+    if self._dummy:
+      print('bluetooth: {}'.format(string))
+      return
+    self._conn.write(string)
+
+  # See http://ww1.microchip.com/downloads/en/DeviceDoc/bluetooth_cr_UG-v1.0r.pdf
+  # for detail.
+  UART_CODES = {
+    'KEY_RIGHT': 7,
+    'KEY_BACKSPACE': 8,
+    'KEY_ENTER': 10,
+    'KEY_LEFT': 11,
+    'KEY_DOWN': 12,
+    'KEY_UP': 14,
+  }
+
+  def command(self, cmd):
+    if cmd not in self.UART_CODES:
+      print('Unknown Command: {}'.format(cmd))
+      return
+    self.send(struct.pack('b', self.UART_CODES[cmd]))