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/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
'use strict';
// Application module handles the information of apps on behalf of other
// modules.
var Applications = {
installedApps: {},
ready: false,
init: function a_init() {
var self = this;
var apps = navigator.mozApps;
var getAllApps = function getAllApps() {
navigator.mozApps.mgmt.getAll().onsuccess = function mozAppGotAll(evt) {
var apps = evt.target.result;
apps.forEach(function(app) {
self.installedApps[app.manifestURL] = app;
// TODO Followup for retrieving homescreen & comms app
});
self.ready = true;
self.fireApplicationReadyEvent();
};
};
// We need to wait for the chrome shell to let us know when it's ok to
// launch activities. This prevents race conditions.
// The event does not fire again when we reload System app in on
// B2G Desktop, so we save the information into sessionStorage.
if (window.sessionStorage.getItem('webapps-registry-ready')) {
getAllApps();
} else {
window.addEventListener('mozChromeEvent', function mozAppReady(event) {
if (event.detail.type != 'webapps-registry-ready')
return;
window.sessionStorage.setItem('webapps-registry-ready', 'yes');
window.removeEventListener('mozChromeEvent', mozAppReady);
getAllApps();
});
}
apps.mgmt.oninstall = function a_install(evt) {
var newapp = evt.application;
self.installedApps[newapp.manifestURL] = newapp;
self.fireApplicationInstallEvent(newapp);
};
apps.mgmt.onuninstall = function a_uninstall(evt) {
var deletedapp = evt.application;
delete self.installedApps[deletedapp.manifestURL];
self.fireApplicationUninstallEvent(deletedapp);
};
},
getByManifestURL: function a_getByManifestURL(manifestURL) {
if (manifestURL in this.installedApps) {
return this.installedApps[manifestURL];
}
return null;
},
fireApplicationReadyEvent: function a_fireAppReadyEvent() {
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent('applicationready',
/* canBubble */ true, /* cancelable */ false,
{ applications: this.installedApps });
window.dispatchEvent(evt);
},
// We need to dispatch the following events because
// mozApps is not doing so right now.
// ref: https://bugzilla.mozilla.org/show_bug.cgi?id=731746
fireApplicationInstallEvent: function a_fireApplicationInstallEvent(app) {
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent('applicationinstall',
/* canBubble */ true, /* cancelable */ false,
{ application: app });
window.dispatchEvent(evt);
},
fireApplicationUninstallEvent: function a_fireApplicationUninstallEvent(app) {
var evt = document.createEvent('CustomEvent');
evt.initCustomEvent('applicationuninstall',
/* canBubble */ true, /* cancelable */ false,
{ application: app });
window.dispatchEvent(evt);
}
};
Applications.init();
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