diff options
Diffstat (limited to 'apps/system/js/background_service.js')
| -rw-r--r-- | apps/system/js/background_service.js | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/apps/system/js/background_service.js b/apps/system/js/background_service.js deleted file mode 100644 index 117b556..0000000 --- a/apps/system/js/background_service.js +++ /dev/null @@ -1,196 +0,0 @@ -/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- / -/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ - -'use strict'; - -/* - Allow web apps to inject a tiny persistent background iframe - as the phone starts. -*/ -var BackgroundServiceManager = (function bsm() { - /* We keep the references to background page iframes here. - The iframes will be append to body */ - var frames = {}; - - /* The name of the background window open by background_page in - manifest. */ - var AUTO_OPEN_BG_PAGE_NAME = 'background'; - - /* Init */ - var init = function bsm_init() { - var applications = Applications.installedApps; - Object.keys(applications).forEach(function bsm_each(manifestURL) { - var app = applications[manifestURL]; - if (!app.manifest.background_page) - return; - - // XXX: this work as if background_page is always a path not a full URL. - var url = app.origin + app.manifest.background_page; - open(manifestURL, AUTO_OPEN_BG_PAGE_NAME, url); - }); - }; - - /* mozbrowseropenwindow */ - window.addEventListener('mozbrowseropenwindow', function bsm_winopen(evt) { - if (evt.detail.features !== 'background') - return; - - // stopPropagation means we are not allowing - // Popup Manager to handle this event - evt.stopPropagation(); - - var manifestURL = evt.target.getAttribute('mozapp'); - var detail = evt.detail; - - open(manifestURL, detail.name, detail.url, detail.frameElement); - }, true); - - /* mozbrowserclose */ - window.addEventListener('mozbrowserclose', function bsm_winclose(evt) { - if (!'frameType' in evt.target.dataset || - evt.target.dataset.frameType !== 'background') - return; - - var manifestURL = evt.target.getAttribute('mozapp'); - - close(manifestURL, evt.target.dataset.frameName); - }, true); - - /* mozbrowsererror */ - window.addEventListener('mozbrowsererror', function bsm_winclose(evt) { - if (!'frameType' in evt.target.dataset || - evt.target.dataset.frameType !== 'background' || - evt.detail.type !== 'fatal') - return; - - var target = evt.target; - var manifestURL = target.getAttribute('mozapp'); - - // This bg service has just crashed, clean up the frame - var name = target.dataset.frameName; - close(manifestURL, name); - }, true); - - /* OnInstall */ - window.addEventListener('applicationinstall', function bsm_oninstall(evt) { - var app = evt.detail.application; - var origin = app.origin; - if (!app.manifest.background_page) - return; - - // XXX: this work as if background_page is always a path not a full URL. - var url = origin + app.manifest.background_page; - open(manifestURL, AUTO_OPEN_BG_PAGE_NAME, url); - }); - - /* OnUninstall */ - window.addEventListener('applicationuninstall', function bsm_oninstall(evt) { - var app = evt.detail.application; - close(app.manifestURL); - }); - - /* Check if the app has the permission to open a background page */ - var hasBackgroundPermission = function bsm_checkPermssion(app) { - var mozPerms = navigator.mozPermissionSettings; - if (!mozPerms) - return false; - - var value = mozPerms.get('backgroundservice', app.manifestURL, - app.origin, false); - - return (value === 'allow'); - }; - - /* The open function is responsible of containing the iframe */ - var open = function bsm_open(manifestURL, name, url, frame) { - var app = Applications.getByManifestURL(manifestURL); - if (!app || !hasBackgroundPermission(app)) - return false; - - if (frames[manifestURL] && frames[manifestURL][name]) { - console.error('Window with the same name is there but Gecko ' + - ' failed to use it. See bug 766873. origin: "' + origin + - '", name: "' + name + '".'); - return false; - } - - if (!frame) { - frame = document.createElement('iframe'); - - // If we have a frame element, it's provided by mozbrowseropenwindow, and - // it has the mozbrowser, mozapp, and src attributes set already. - frame.setAttribute('mozbrowser', 'mozbrowser'); - frame.setAttribute('mozapp', manifestURL); - frame.setAttribute('name', name); - - var appName = app.manifest.name; - frame.setAttribute('remote', 'true'); - console.info('%%%%% Launching', appName, 'bg service as remote (OOP)'); - frame.src = url; - } - frame.className = 'backgroundWindow'; - frame.dataset.frameType = 'background'; - frame.dataset.frameName = name; - - if (!frames[manifestURL]) - frames[manifestURL] = {}; - frames[manifestURL][name] = frame; - - document.body.appendChild(frame); - - // Background services should load in the background. - // - // (The funky setTimeout(0) is to work around - // https://bugzilla.mozilla.org/show_bug.cgi?id=810431 .) - setTimeout(function() { frame.setVisible(false) }, 0); - - return true; - }; - - /* The close function will remove the iframe from DOM and - delete the reference */ - var close = function bsm_close(manifestURL, name) { - if (!frames[manifestURL]) - return false; - - if (typeof name == 'undefined') { - // Close all windows - Object.keys(frames[manifestURL]).forEach(function closeEach(name) { - document.body.removeChild(frames[manifestURL][name]); - frames[manifestURL][name] = null; - }); - delete frames[manifestURL]; - return true; - } - - // Close one window - var frame = frames[manifestURL][name]; - if (!frame) - return false; - - document.body.removeChild(frame); - delete frames[manifestURL][name]; - - if (!Object.keys(frames[manifestURL]).length) - delete frames[manifestURL]; - return true; - }; - - /* start initialization */ - if (Applications.ready) { - init(); - } else { - window.addEventListener('applicationready', - function bsm_appListReady(event) { - window.removeEventListener('applicationready', bsm_appListReady); - init(); - }); - } - - /* Return the public APIs */ - return { - 'open': open, - 'close': close - }; -}()); - |