www/battery/index.js

/*
 *
 * 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.
 *
*/

var deviceReady = false;

/**
 * Function called when page has finished loading.
 */
function init() {
    document.addEventListener("deviceready", function() {
            deviceReady = true;
            console.log("Device="+device.platform+" "+device.version);
        }, false);
    window.setTimeout(function() {
        if (!deviceReady) {
            alert("Error: Apache Cordova did not initialize.  Demo will not run correctly.");
        }
    },1000);
}

/* Battery */
function updateInfo(info) {
    document.getElementById('level').innerText = info.level;
    document.getElementById('isPlugged').innerText = info.isPlugged;
    if (info.level > 5) {
        document.getElementById('crit').innerText = "false";
    }
    if (info.level > 20) {
        document.getElementById('low').innerText = "false";
    }
}

function batteryLow(info) {
    document.getElementById('low').innerText = "true";
}

function batteryCritical(info) {
    document.getElementById('crit').innerText = "true";
}

function addBattery() {
    window.addEventListener("batterystatus", updateInfo, false);
}

function removeBattery() {
    window.removeEventListener("batterystatus", updateInfo, false);
}

function addLow() {
    window.addEventListener("batterylow", batteryLow, false);
}

function removeLow() {
    window.removeEventListener("batterylow", batteryLow, false);
}

function addCritical() {
    window.addEventListener("batterycritical", batteryCritical, false);
}

function removeCritical() {
    window.removeEventListener("batterycritical", batteryCritical, false);
}

window.onload = function() {
  addListenerToClass('addBattery', addBattery);
  addListenerToClass('removeBattery', removeBattery);
  addListenerToClass('addLow', addLow);
  addListenerToClass('removeLow', removeLow);
  addListenerToClass('addCritical', addCritical);
  addListenerToClass('removeCritical', removeCritical);
  
  addListenerToClass('backBtn', backHome);
  init();
}