b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
84 lines
2.1 KiB
JavaScript
Executable file
84 lines
2.1 KiB
JavaScript
Executable file
/**
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* @fileoverview This file provides common helper functions used to manipulate
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* access point names (APNs)
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*/
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/* exported ApnHelper */
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(function(exports) {
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'use strict';
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/**
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* List of data network types, see source/dom/system/gonk/ril_consts.js in
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* mozilla-central. Those match the equivalent Android integer types.
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*/
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var NETWORK_TYPES = [
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null,
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'gprs',
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'edge',
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'umts',
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'is95a',
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'is95b',
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'1xrtt',
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'evdo0',
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'evdoa',
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'hsdpa',
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'hsupa',
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'hspa',
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'evdob',
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'ehrpd',
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'lte',
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'hspa+',
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'gsm'
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];
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/**
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* Filter a list of APNs by network type. This involves comparing the bearer
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* field if present to the data network type and checking if they match. If
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* the bearer value of an APN is not defined or is set to 0 then we consider
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* the APN compatible with any network.
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*
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* @param {Array} apns An array of APNs
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* @param {String} type The network type which the APNs must be compatible
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* with
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*/
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function ah_filterByBearer(apns, type) {
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var typeIdx = NETWORK_TYPES.indexOf(type);
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for (var i = 0; i < apns.length; i++) {
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var bearer = apns[i].bearer ? +apns[i].bearer : 0;
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if (bearer && (bearer !== typeIdx)) {
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// This APN is incompatible, remove it from the array
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apns.splice(i, 1);
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}
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}
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}
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/**
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* Get an APN from the specified list which is compatible with the specified
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* MCC, MNC and connection type
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*
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* @param {Object} list The global APN list, the format should be the same as
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* the one used in apn.json
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* @param {Integer} mcc The mobile country code
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* @param {Integer} mnc The mobile network code
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* @param {String} type The network type which the filtered APNs must be
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* compatible with
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*
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* @return {Array} A list of compatible APNs
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*/
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function ah_getCompatible(list, mcc, mnc, type) {
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var apns = list[mcc] ? (list[mcc][mnc] || []) : [];
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ah_filterByBearer(apns, type);
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return apns;
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}
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var ApnHelper = {
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getCompatible: ah_getCompatible
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};
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exports.ApnHelper = ApnHelper;
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})(this);
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