services/sync/tps/extensions/mozmill/resource/driver/msgbroker.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/services/sync/tps/extensions/mozmill/resource/driver/msgbroker.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,58 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, you can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 +
     1.8 +var EXPORTED_SYMBOLS = ['addListener', 'addObject',
     1.9 +                        'removeListener',
    1.10 +                        'sendMessage', 'log', 'pass', 'fail'];
    1.11 +
    1.12 +var listeners = {};
    1.13 +
    1.14 +// add a listener for a specific message type
    1.15 +function addListener(msgType, listener) {
    1.16 +  if (listeners[msgType] === undefined) {
    1.17 +    listeners[msgType] = [];
    1.18 +  }
    1.19 +
    1.20 +  listeners[msgType].push(listener);
    1.21 +}
    1.22 +
    1.23 +// add each method in an object as a message listener
    1.24 +function addObject(object) {
    1.25 +  for (var msgType in object) {
    1.26 +    addListener(msgType, object[msgType]);
    1.27 +  }
    1.28 +}
    1.29 +
    1.30 +// remove a listener for all message types
    1.31 +function removeListener(listener) {
    1.32 +  for (var msgType in listeners) {
    1.33 +    for (let i = 0; i < listeners.length; ++i) {
    1.34 +      if (listeners[msgType][i] == listener) {
    1.35 +        listeners[msgType].splice(i, 1); // remove listener from array
    1.36 +      }
    1.37 +    }
    1.38 +  }
    1.39 +}
    1.40 +
    1.41 +function sendMessage(msgType, obj) {
    1.42 +  if (listeners[msgType] === undefined) {
    1.43 +    return;
    1.44 +  }
    1.45 +
    1.46 +  for (let i = 0; i < listeners[msgType].length; ++i) {
    1.47 +    listeners[msgType][i](obj);
    1.48 +  }
    1.49 +}
    1.50 +
    1.51 +function log(obj) {
    1.52 +  sendMessage('log', obj);
    1.53 +}
    1.54 +
    1.55 +function pass(obj) {
    1.56 +  sendMessage('pass', obj);
    1.57 +}
    1.58 +
    1.59 +function fail(obj) {
    1.60 +  sendMessage('fail', obj);
    1.61 +}

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