1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/addon-sdk/source/lib/sdk/passwords.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,61 @@ 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 +'use strict'; 1.8 + 1.9 +module.metadata = { 1.10 + "stability": "stable" 1.11 +}; 1.12 + 1.13 +const { search, remove, store } = require("./passwords/utils"); 1.14 +const { defer, delay } = require("./lang/functional"); 1.15 + 1.16 +/** 1.17 + * Utility function that returns `onComplete` and `onError` callbacks form the 1.18 + * given `options` objects. Also properties are removed from the passed 1.19 + * `options` objects. 1.20 + * @param {Object} options 1.21 + * Object that is passed to the exported functions of this module. 1.22 + * @returns {Function[]} 1.23 + * Array with two elements `onComplete` and `onError` functions. 1.24 + */ 1.25 +function getCallbacks(options) { 1.26 + let value = [ 1.27 + 'onComplete' in options ? options.onComplete : null, 1.28 + 'onError' in options ? defer(options.onError) : console.exception 1.29 + ]; 1.30 + 1.31 + delete options.onComplete; 1.32 + delete options.onError; 1.33 + 1.34 + return value; 1.35 +}; 1.36 + 1.37 +/** 1.38 + * Creates a wrapper function that tries to call `onComplete` with a return 1.39 + * value of the wrapped function or falls back to `onError` if wrapped function 1.40 + * throws an exception. 1.41 + */ 1.42 +function createWrapperMethod(wrapped) { 1.43 + return function (options) { 1.44 + let [ onComplete, onError ] = getCallbacks(options); 1.45 + try { 1.46 + let value = wrapped(options); 1.47 + if (onComplete) { 1.48 + delay(function() { 1.49 + try { 1.50 + onComplete(value); 1.51 + } catch (exception) { 1.52 + onError(exception); 1.53 + } 1.54 + }); 1.55 + } 1.56 + } catch (exception) { 1.57 + onError(exception); 1.58 + } 1.59 + }; 1.60 +} 1.61 + 1.62 +exports.search = createWrapperMethod(search); 1.63 +exports.store = createWrapperMethod(store); 1.64 +exports.remove = createWrapperMethod(remove);