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confighelper.js
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confighelper.js
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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
// config.xml and AppxManifest.xml wrapper (non-node ConfigParser analogue)
var configCache = {};
var utils = require("cordova/utils");
var isPhone = (cordova.platformId == 'windows') && WinJS.Utilities.isPhone;
var isWin10UWP = navigator.appVersion.indexOf('MSAppHost/3.0') !== -1;
var splashScreenTagName = isWin10UWP ? "SplashScreen" : (isPhone ? "m3:SplashScreen" : "m2:SplashScreen");
function XmlFile(text) {
this.text = text;
}
XmlFile.prototype.loadTags = function (tagName) {
var parser;
if (!this.doc) {
parser = new DOMParser();
this.doc = parser.parseFromString(this.text, "application/xml");
}
var tags = this.doc.getElementsByTagName(tagName);
return Array.prototype.slice.call(tags);
}
function Config(text) {
XmlFile.apply(this, arguments);
this.preferences = this.loadTags("preference");
}
function Manifest(text) {
XmlFile.apply(this, arguments);
this.splashScreen = this.loadTags(splashScreenTagName)[0];
}
utils.extend(Config, XmlFile);
utils.extend(Manifest, XmlFile);
function requestFile(filePath, success, error) {
var xhr;
if (typeof configCache[filePath] != 'undefined') {
success(configCache[filePath]);
}
function fail(msg) {
console.error(msg);
if (error) {
error(msg);
}
}
var xhrStatusChangeHandler = function () {
if (xhr.readyState == 4) {
if (xhr.status == 200 || xhr.status == 304 || xhr.status == 0 /* file:// */) {
configCache[filePath] = xhr.responseText;
success(xhr.responseText);
}
else {
fail('[Windows][cordova.js][xhrStatusChangeHandler] Could not XHR ' + filePath + ': ' + xhr.statusText);
}
}
};
xhr = new XMLHttpRequest();
xhr.addEventListener("load", xhrStatusChangeHandler);
try {
xhr.open("get", filePath, true);
xhr.send();
} catch (e) {
fail('[Windows][cordova.js][xhrFile] Could not XHR ' + filePath + ': ' + JSON.stringify(e));
}
}
function readConfig(success, error) {
requestFile("/config.xml", function (contents) {
success(new Config(contents));
}, error);
}
function readManifest(success, error) {
requestFile("/AppxManifest.xml", function (contents) {
success(new Manifest(contents));
}, error);
}
/**
* Reads a preference value from config.xml.
* Returns preference value or undefined if it does not exist.
* @param {String} preferenceName Preference name to read */
Config.prototype.getPreferenceValue = function (preferenceName) {
var preferenceItem = this.preferences && this.preferences.filter(function (item) {
return item.attributes['name'].value === preferenceName;
});
if (preferenceItem && preferenceItem[0] && preferenceItem[0].attributes && preferenceItem[0].attributes['value']) {
return preferenceItem[0].attributes['value'].value;
}
}
/**
* Reads SplashScreen image path
*/
Manifest.prototype.getSplashScreenImagePath = function () {
return this.splashScreen.attributes['Image'].value;
}
exports.readConfig = readConfig;
exports.readManifest = readManifest;