Publish Vulpes Preview 15 sources for desktop, Android and Tundra
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356
gaia/tv_apps/smart-system/js/updatable.js
Executable file
356
gaia/tv_apps/smart-system/js/updatable.js
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/* global ManifestHelper, UpdateManager, AppWindowManager, SettingsCache,
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CustomDialog, asyncStorage */
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'use strict';
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/*
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* An Updatable object represents an application *or* system update.
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* It takes care of the interaction with the UpdateManager and observes
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* the update itself to handle success/error cases.
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*
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* - name of the update
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* - size of the update
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* - download() to start the download
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* - cancelDownload() to cancel it
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*/
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/* === App Updates === */
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function AppUpdatable(app) {
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this._mgmt = navigator.mozApps.mgmt;
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this.app = app;
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var manifest = app.manifest ? app.manifest : app.updateManifest;
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this.name = new ManifestHelper(manifest).name;
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this.nameL10nId = '';
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this.size = app.downloadSize;
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this.progress = null;
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UpdateManager.addToUpdatableApps(this);
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app.ondownloadavailable = this.availableCallBack.bind(this);
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if (app.downloadAvailable) {
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this.availableCallBack();
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}
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if (app.readyToApplyDownload) {
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this.applyUpdate();
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}
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}
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AppUpdatable.prototype.download = function() {
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UpdateManager.addToDownloadsQueue(this);
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this.progress = 0;
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this.app.download();
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};
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AppUpdatable.prototype.cancelDownload = function() {
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this.app.cancelDownload();
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};
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AppUpdatable.prototype.uninit = function() {
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this.app.ondownloadavailable = null;
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this.clean();
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};
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AppUpdatable.prototype.clean = function() {
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this.app.ondownloaderror = null;
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this.app.ondownloadsuccess = null;
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this.app.ondownloadapplied = null;
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this.app.onprogress = null;
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this.progress = null;
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};
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AppUpdatable.prototype.availableCallBack = function() {
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this.size = this.app.downloadSize;
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if (this.app.installState === 'installed') {
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UpdateManager.addToUpdatesQueue(this);
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// we add these callbacks only now to prevent interfering
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// with other modules (especially the AppInstallManager)
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this.app.ondownloaderror = this.errorCallBack.bind(this);
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this.app.ondownloadsuccess = this.successCallBack.bind(this);
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this.app.ondownloadapplied = this.appliedCallBack.bind(this);
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this.app.onprogress = this.progressCallBack.bind(this);
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}
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};
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AppUpdatable.prototype.successCallBack = function() {
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var app = this.app;
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if (AppWindowManager.getActiveApp() &&
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AppWindowManager.getActiveApp().origin !== app.origin) {
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this.applyUpdate();
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} else {
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var self = this;
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window.addEventListener('appwillclose', function waitClose() {
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window.removeEventListener('appwillclose', waitClose);
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self.applyUpdate();
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});
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}
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UpdateManager.downloaded(this);
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UpdateManager.removeFromDownloadsQueue(this);
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UpdateManager.removeFromUpdatesQueue(this);
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};
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AppUpdatable.prototype.applyUpdate = function() {
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AppWindowManager.kill(this.app.origin);
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this._mgmt.applyDownload(this.app);
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};
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AppUpdatable.prototype.appliedCallBack = function() {
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this.clean();
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};
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AppUpdatable.prototype.errorCallBack = function(e) {
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var app = e.application;
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var errorName = app.downloadError.name;
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console.info('downloadError event, error code is', errorName);
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UpdateManager.requestErrorBanner();
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UpdateManager.removeFromDownloadsQueue(this);
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if (!app.downloadAvailable) {
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UpdateManager.removeFromUpdatesQueue(this);
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}
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this.progress = null;
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};
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AppUpdatable.prototype.progressCallBack = function() {
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if (this.progress === null) {
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// this is the first progress
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UpdateManager.addToDownloadsQueue(this);
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this.progress = 0;
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}
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var delta = this.app.progress - this.progress;
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this.progress = this.app.progress;
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UpdateManager.downloadProgressed(delta);
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};
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/*
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* System Updates
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* Will be instanciated only once by the UpdateManager
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*
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*/
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function SystemUpdatable() {
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this.nameL10nId = 'systemUpdate';
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this.size = 0;
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this.downloading = false;
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this.paused = false;
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// XXX: this state should be kept on the platform side
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// https://bugzilla.mozilla.org/show_bug.cgi?id=827090
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this.checkKnownUpdate(UpdateManager.checkForUpdates.bind(UpdateManager));
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window.addEventListener('mozChromeEvent', this);
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}
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SystemUpdatable.KNOWN_UPDATE_FLAG = 'known-sysupdate';
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SystemUpdatable.prototype.download = function() {
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if (this.downloading) {
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return;
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}
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this.downloading = true;
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this.paused = false;
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UpdateManager.addToDownloadsQueue(this);
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this.progress = 0;
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this._dispatchEvent('update-available-result', 'download');
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};
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SystemUpdatable.prototype.cancelDownload = function() {
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this._dispatchEvent('update-download-cancel');
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this.downloading = false;
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this.paused = false;
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};
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SystemUpdatable.prototype.uninit = function() {
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window.removeEventListener('mozChromeEvent', this);
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};
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SystemUpdatable.prototype.handleEvent = function(evt) {
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if (evt.type !== 'mozChromeEvent') {
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return;
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}
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var detail = evt.detail;
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if (!detail.type) {
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return;
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}
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switch (detail.type) {
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case 'update-error':
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this.errorCallBack();
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break;
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case 'update-download-started':
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// TODO UpdateManager glue
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this.paused = false;
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break;
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case 'update-download-progress':
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var delta = detail.progress - this.progress;
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this.progress = detail.progress;
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UpdateManager.downloadProgressed(delta);
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break;
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case 'update-download-stopped':
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// TODO UpdateManager glue
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this.paused = detail.paused;
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if (!this.paused) {
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UpdateManager.startedUncompressing();
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}
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break;
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case 'update-downloaded':
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this.downloading = false;
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UpdateManager.downloaded(this);
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this.showApplyPrompt();
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break;
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case 'update-prompt-apply':
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this.showApplyPrompt();
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break;
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}
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};
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SystemUpdatable.prototype.errorCallBack = function() {
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UpdateManager.requestErrorBanner();
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UpdateManager.removeFromDownloadsQueue(this);
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this.downloading = false;
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};
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SystemUpdatable.prototype.showApplyPrompt = function() {
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var batteryLevel = window.navigator.battery.level * 100;
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this.getBatteryPercentageThreshold().then(function(threshold) {
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if (batteryLevel < threshold) {
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this.showApplyPromptBatteryNok(threshold);
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} else {
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this.showApplyPromptBatteryOk();
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}
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}.bind(this));
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};
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SystemUpdatable.prototype.BATTERY_FALLBACK_THRESHOLD = 25;
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SystemUpdatable.prototype.getBatteryPercentageThreshold = function() {
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var fallbackThreshold = this.BATTERY_FALLBACK_THRESHOLD;
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var isCharging = window.navigator.battery.charging;
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var batteryThresholdKey =
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'app.update.battery-threshold.' + (isCharging ? 'plugged' : 'unplugged');
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return new Promise(function(resolve, reject) {
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SettingsCache.get(batteryThresholdKey, function(value) {
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var threshold = value;
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if (typeof threshold !== 'number') {
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threshold = fallbackThreshold;
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}
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if (threshold < 0 || threshold > 100) {
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threshold = fallbackThreshold;
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}
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resolve(threshold);
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});
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});
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};
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SystemUpdatable.prototype.showApplyPromptBatteryNok = function(minBattery) {
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var ok = {
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title: 'ok',
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callback: this.declineInstallBattery.bind(this)
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};
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var screen = document.getElementById('screen');
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CustomDialog.show(
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'systemUpdateReady',
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{ id: 'systemUpdateLowBatteryThreshold', args: { threshold: minBattery } },
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ok,
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null,
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screen
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)
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.setAttribute('data-z-index-level', 'system-dialog');
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};
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SystemUpdatable.prototype.showApplyPromptBatteryOk = function() {
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// Update will be completed after restart
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this.forgetKnownUpdate();
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var cancel = {
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title: 'later',
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callback: this.declineInstallWait.bind(this)
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};
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var confirm = {
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title: 'installNow',
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callback: this.acceptInstall.bind(this),
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recommend: true
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};
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var screen = document.getElementById('screen');
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CustomDialog.show(
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'systemUpdateReady',
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'wantToInstallNow',
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cancel,
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confirm,
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screen
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)
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.setAttribute('data-z-index-level', 'system-dialog');
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};
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/**
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* Decline install of update, forwarding `reason` to UpdatePrompt.jsm.
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* `reason` is either 'wait' or 'low-battery'. 'wait' corresponds to the user
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* deciding to delay the update, in which case the prompt will reappear after a
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* few minutes of idle time. 'low-battery' means the battery is currently too
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* low for an update to take place and the update prompt will not reappear.
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* @param {String} reason
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*/
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SystemUpdatable.prototype.declineInstall = function(reason) {
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CustomDialog.hide();
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this._dispatchEvent('update-prompt-apply-result', reason);
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UpdateManager.removeFromDownloadsQueue(this);
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};
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SystemUpdatable.prototype.declineInstallBattery = function() {
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this.declineInstall('low-battery');
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};
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SystemUpdatable.prototype.declineInstallWait = function() {
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this.declineInstall('wait');
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};
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SystemUpdatable.prototype.acceptInstall = function() {
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CustomDialog.hide();
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this._dispatchEvent('update-prompt-apply-result', 'restart');
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};
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SystemUpdatable.prototype.rememberKnownUpdate = function() {
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asyncStorage.setItem(SystemUpdatable.KNOWN_UPDATE_FLAG, true);
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};
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SystemUpdatable.prototype.checkKnownUpdate = function(callback) {
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if (typeof callback !== 'function') {
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return;
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}
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asyncStorage.getItem(SystemUpdatable.KNOWN_UPDATE_FLAG, function(value) {
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callback(!!value);
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});
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};
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SystemUpdatable.prototype.forgetKnownUpdate = function() {
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asyncStorage.removeItem(SystemUpdatable.KNOWN_UPDATE_FLAG);
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};
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SystemUpdatable.prototype._dispatchEvent = function(type, result) {
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var event = document.createEvent('CustomEvent');
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var data = { type: type };
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if (result) {
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data.result = result;
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}
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event.initCustomEvent('mozContentEvent', true, true, data);
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window.dispatchEvent(event);
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};
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