Use InputAgent for the keyboard.

lib/services/inputagent.js

@@ -0,0 +1,48 @@
+var util = require('util')
+
+var Promise = require('bluebird')
+var ProtoBuf = require('protobufjs')
+var ByteBuffer = require('protobufjs/node_modules/bytebuffer')
+var split = require('split')
+
+var pathutil = require('../util/pathutil')
+var streamutil = require('../util/streamutil')
+
+var proto = ProtoBuf.loadProtoFile(
+  pathutil.vendor('InputAgent/inputAgentProtocol.proto')
+).build().jp.co.cyberagent.stf.input.agent
+
+var inputAgent = module.exports = Object.create(null)
+
+inputAgent.open = function(adb, serial) {
+  return adb.installAsync(serial, pathutil.vendor('InputAgent/InputAgent.apk'))
+    .then(function() {
+      return adb.shellAsync(serial, 'pm path jp.co.cyberagent.stf.input.agent')
+    })
+    .then(function(out) {
+      return streamutil.findLine(out, (/^package:/))
+        .then(function(line) {
+          return line.substr(8)
+        })
+    })
+    .then(function(apk) {
+      return adb.shellAsync(serial, util.format(
+        "export CLASSPATH='%s';"
+      + ' exec app_process /system/bin'
+      + ' jp.co.cyberagent.stf.input.agent.InputAgent'
+      , apk
+      ))
+    })
+}
+
+inputAgent.sendInputEvent = function(agent, event) {
+  var lengthBuffer = new ByteBuffer()
+    , messageBuffer = new proto.InputEvent(event).encode()
+
+  lengthBuffer.writeVarint32(messageBuffer.length)
+
+  agent.write(Buffer.concat([
+    lengthBuffer.toBuffer()
+  , messageBuffer.toBuffer()
+  ]))
+}