Implement ringer mode setting.

lib/roles/device/plugins/ringer.js

@@ -0,0 +1,35 @@
+var syrup = require('syrup')
+
+var logger = require('../../../util/logger')
+var wire = require('../../../wire')
+var wireutil = require('../../../wire/util')
+
+module.exports = syrup.serial()
+  .dependency(require('./service'))
+  .dependency(require('../support/router'))
+  .dependency(require('../support/push'))
+  .define(function(options, service, router, push) {
+    var log = logger.createLogger('device:plugins:ringer')
+
+    router.on(wire.RingerSetMessage, function(channel, message) {
+      var reply = wireutil.reply(options.serial)
+
+      log.info('Setting ringer mode to mode "%s"', message.mode)
+
+      service.setRingerMode(message.mode)
+        .timeout(30000)
+        .then(function() {
+          push.send([
+            channel
+          , reply.okay()
+          ])
+        })
+        .error(function(err) {
+          log.error('Setting ringer mode failed', err.stack)
+          push.send([
+            channel
+          , reply.fail(err.message)
+          ])
+        })
+    })
+  })

lib/roles/device/plugins/service.js

@@ -505,6 +505,22 @@ module.exports = syrup.serial()
         })
     }
 
+    plugin.setRingerMode = function(mode) {
+      return runServiceCommand(
+          apk.wire.MessageType.SET_RINGER_MODE
+        , new apk.wire.SetRingerModeRequest(
+            mode
+          )
+        )
+        .timeout(10000)
+        .then(function(data) {
+          var response = apk.wire.SetRingerModeResponse.decode(data)
+          if (!response.success) {
+            throw new Error('Unable to set ringer mode')
+          }
+        })
+    }
+
     function runServiceCommand(type, cmd) {
       var resolver = Promise.defer()
       var id = Math.floor(Math.random() * 0xFFFFFF)