b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
147 lines
3.9 KiB
JavaScript
Executable file
147 lines
3.9 KiB
JavaScript
Executable file
'use strict';
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/* global BaseModule */
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/* global Service */
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/* global BatteryIcon */
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/* global LazyLoader */
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(function() {
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function BatteryOverlay() {
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LazyLoader.load(['js/battery_icon.js']).then(function() {
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this.icon = new BatteryIcon(this);
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this.icon.start();
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}.bind(this)).catch(function(err) {
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console.error(err);
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});
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}
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BatteryOverlay.SUB_MODULES = [
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'PowerSave'
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];
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BaseModule.create(BatteryOverlay, {
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name: 'BatteryOverlay',
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TOASTER_TIMEOUT: 5000,
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TRANSITION_SPEED: 1.8,
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TRANSITION_FRACTION: 0.30,
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AUTO_SHUTDOWN_LEVEL: 0.00,
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EMPTY_BATTERY_LEVEL: 0.1,
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_battery: window.navigator.battery,
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_notification: null,
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getAllElements: function bm_getAllElements() {
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this.screen = document.getElementById('screen');
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this.overlay = document.getElementById('system-overlay');
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this.notification = document.getElementById('battery');
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},
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checkBatteryDrainage: function bm_checkBatteryDrainage() {
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var battery = this._battery;
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if (!battery) {
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return;
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}
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if (battery.level <= this.AUTO_SHUTDOWN_LEVEL && !battery.charging) {
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// Fire a event to inform sleepMenu perform shutdown.
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window.dispatchEvent(new CustomEvent('batteryshutdown'));
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}
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},
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_start: function bm_init() {
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this.getAllElements();
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var battery = this._battery;
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if (battery) {
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// When the device is booted, check if the battery is drained. If so,
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// batteryshutdown would be triggered to inform sleepMenu shutdown.
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this.checkBatteryDrainage.bind(this);
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battery.addEventListener('levelchange', this);
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battery.addEventListener('chargingchange', this);
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}
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window.addEventListener('screenchange', this);
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this._screenOn = true;
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this._wasEmptyBatteryNotificationDisplayed = false;
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this.displayIfNecessary();
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},
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handleEvent: function bm_handleEvent(evt) {
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var battery = this._battery;
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switch (evt.type) {
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case 'screenchange':
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this._screenOn = evt.detail.screenEnabled;
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this.displayIfNecessary();
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break;
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case 'levelchange':
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if (!battery) {
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return;
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}
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this.checkBatteryDrainage();
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this.displayIfNecessary();
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this.powerSave && this.powerSave.onBatteryChange();
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this.icon && this.icon.update();
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break;
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case 'chargingchange':
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this.powerSave && this.powerSave.onBatteryChange();
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this.icon && this.icon.update();
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// We turn the screen on if needed in order to let
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// the user knows the device is charging
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if (battery && battery.charging) {
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this.hide();
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this._wasEmptyBatteryNotificationDisplayed = false;
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if (!this._screenOn) {
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Service.request('turnScreenOn');
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}
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} else {
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this.displayIfNecessary();
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}
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break;
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}
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},
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_shouldWeDisplay: function bm_shouldWeDisplay() {
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var battery = this._battery;
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if (!battery) {
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return false;
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}
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return (!this._wasEmptyBatteryNotificationDisplayed &&
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!battery.charging &&
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battery.level <= this.EMPTY_BATTERY_LEVEL &&
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this._screenOn);
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},
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displayIfNecessary: function bm_display() {
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if (!this._shouldWeDisplay()) {
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return;
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}
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this.overlay.classList.add('battery');
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this._wasEmptyBatteryNotificationDisplayed = true;
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if (this._toasterTimeout) {
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clearTimeout(this._toasterTimeout);
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}
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this._toasterTimeout = setTimeout(this.hide.bind(this),
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this.TOASTER_TIMEOUT);
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},
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hide: function bm_hide() {
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var overlayCss = this.overlay.classList;
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if (overlayCss.contains('battery')) {
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this.overlay.classList.remove('battery');
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this._toasterTimeout = null;
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}
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}
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});
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}());
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