1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/modules/HelperApps.jsm Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,217 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
1.6 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +"use strict";
1.8 +
1.9 +const { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
1.10 +
1.11 +Cu.import("resource://gre/modules/XPCOMUtils.jsm");
1.12 +Cu.import("resource://gre/modules/Services.jsm");
1.13 +Cu.import("resource://gre/modules/Prompt.jsm");
1.14 +Cu.import("resource://gre/modules/Messaging.jsm");
1.15 +
1.16 +XPCOMUtils.defineLazyGetter(this, "ContentAreaUtils", function() {
1.17 + let ContentAreaUtils = {};
1.18 + Services.scriptloader.loadSubScript("chrome://global/content/contentAreaUtils.js", ContentAreaUtils);
1.19 + return ContentAreaUtils;
1.20 +});
1.21 +
1.22 +this.EXPORTED_SYMBOLS = ["App","HelperApps"];
1.23 +
1.24 +function App(data) {
1.25 + this.name = data.name;
1.26 + this.isDefault = data.isDefault;
1.27 + this.packageName = data.packageName;
1.28 + this.activityName = data.activityName;
1.29 + this.iconUri = "-moz-icon://" + data.packageName;
1.30 +}
1.31 +
1.32 +App.prototype = {
1.33 + // callback will be null if a result is not requested
1.34 + launch: function(uri, callback) {
1.35 + HelperApps._launchApp(this, uri, callback);
1.36 + return false;
1.37 + }
1.38 +}
1.39 +
1.40 +var HelperApps = {
1.41 + get defaultBrowsers() {
1.42 + delete this.defaultBrowsers;
1.43 + this.defaultBrowsers = this._getHandlers("http://www.example.com", {
1.44 + filterBrowsers: false,
1.45 + filterHtml: false
1.46 + });
1.47 + return this.defaultBrowsers;
1.48 + },
1.49 +
1.50 + // Finds handlers that have registered for text/html pages or urls ending in html. Some apps, like
1.51 + // the Samsung Video player will only appear for these urls, while some Browsers (like Link Bubble)
1.52 + // won't register here because of the text/html mime type.
1.53 + get defaultHtmlHandlers() {
1.54 + delete this.defaultHtmlHandlers;
1.55 + return this.defaultHtmlHandlers = this._getHandlers("http://www.example.com/index.html", {
1.56 + filterBrowsers: false,
1.57 + filterHtml: false
1.58 + });
1.59 + },
1.60 +
1.61 + _getHandlers: function(url, options) {
1.62 + let values = {};
1.63 +
1.64 + let handlers = this.getAppsForUri(Services.io.newURI(url, null, null), options);
1.65 + handlers.forEach(function(app) {
1.66 + values[app.name] = app;
1.67 + }, this);
1.68 +
1.69 + return values;
1.70 + },
1.71 +
1.72 + get protoSvc() {
1.73 + delete this.protoSvc;
1.74 + return this.protoSvc = Cc["@mozilla.org/uriloader/external-protocol-service;1"].getService(Ci.nsIExternalProtocolService);
1.75 + },
1.76 +
1.77 + get urlHandlerService() {
1.78 + delete this.urlHandlerService;
1.79 + return this.urlHandlerService = Cc["@mozilla.org/uriloader/external-url-handler-service;1"].getService(Ci.nsIExternalURLHandlerService);
1.80 + },
1.81 +
1.82 + prompt: function showPicker(apps, promptOptions, callback) {
1.83 + let p = new Prompt(promptOptions).addIconGrid({ items: apps });
1.84 + p.show(callback);
1.85 + },
1.86 +
1.87 + getAppsForProtocol: function getAppsForProtocol(scheme) {
1.88 + let protoHandlers = this.protoSvc.getProtocolHandlerInfoFromOS(scheme, {}).possibleApplicationHandlers;
1.89 +
1.90 + let results = {};
1.91 + for (let i = 0; i < protoHandlers.length; i++) {
1.92 + try {
1.93 + let protoApp = protoHandlers.queryElementAt(i, Ci.nsIHandlerApp);
1.94 + results[protoApp.name] = new App({
1.95 + name: protoApp.name,
1.96 + description: protoApp.detailedDescription,
1.97 + });
1.98 + } catch(e) {}
1.99 + }
1.100 +
1.101 + return results;
1.102 + },
1.103 +
1.104 + getAppsForUri: function getAppsForUri(uri, flags = { }, callback) {
1.105 + flags.filterBrowsers = "filterBrowsers" in flags ? flags.filterBrowsers : true;
1.106 + flags.filterHtml = "filterHtml" in flags ? flags.filterHtml : true;
1.107 +
1.108 + // Query for apps that can/can't handle the mimetype
1.109 + let msg = this._getMessage("Intent:GetHandlers", uri, flags);
1.110 + let parseData = (d) => {
1.111 + let apps = []
1.112 +
1.113 + if (!d)
1.114 + return apps;
1.115 +
1.116 + apps = this._parseApps(d.apps);
1.117 +
1.118 + if (flags.filterBrowsers) {
1.119 + apps = apps.filter((app) => {
1.120 + return app.name && !this.defaultBrowsers[app.name];
1.121 + });
1.122 + }
1.123 +
1.124 + // Some apps will register for html files (the Samsung Video player) but should be shown
1.125 + // for non-HTML files (like videos). This filters them only if the page has an htm of html
1.126 + // file extension.
1.127 + if (flags.filterHtml) {
1.128 + // Matches from the first '.' to the end of the string, '?', or '#'
1.129 + let ext = /\.([^\?#]*)/.exec(uri.path);
1.130 + if (ext && (ext[1] === "html" || ext[1] === "htm")) {
1.131 + apps = apps.filter(function(app) {
1.132 + return app.name && !this.defaultHtmlHandlers[app.name];
1.133 + }, this);
1.134 + }
1.135 + }
1.136 +
1.137 + return apps;
1.138 + };
1.139 +
1.140 + if (!callback) {
1.141 + let data = this._sendMessageSync(msg);
1.142 + if (!data)
1.143 + return [];
1.144 + return parseData(data);
1.145 + } else {
1.146 + sendMessageToJava(msg, function(data) {
1.147 + callback(parseData(data));
1.148 + });
1.149 + }
1.150 + },
1.151 +
1.152 + launchUri: function launchUri(uri) {
1.153 + let msg = this._getMessage("Intent:Open", uri);
1.154 + sendMessageToJava(msg);
1.155 + },
1.156 +
1.157 + _parseApps: function _parseApps(appInfo) {
1.158 + // appInfo -> {apps: [app1Label, app1Default, app1PackageName, app1ActivityName, app2Label, app2Defaut, ...]}
1.159 + // see GeckoAppShell.java getHandlersForIntent function for details
1.160 + const numAttr = 4; // 4 elements per ResolveInfo: label, default, package name, activity name.
1.161 +
1.162 + let apps = [];
1.163 + for (let i = 0; i < appInfo.length; i += numAttr) {
1.164 + apps.push(new App({"name" : appInfo[i],
1.165 + "isDefault" : appInfo[i+1],
1.166 + "packageName" : appInfo[i+2],
1.167 + "activityName" : appInfo[i+3]}));
1.168 + }
1.169 +
1.170 + return apps;
1.171 + },
1.172 +
1.173 + _getMessage: function(type, uri, options = {}) {
1.174 + let mimeType = options.mimeType;
1.175 + if (uri && mimeType == undefined)
1.176 + mimeType = ContentAreaUtils.getMIMETypeForURI(uri) || "";
1.177 +
1.178 + return {
1.179 + type: type,
1.180 + mime: mimeType,
1.181 + action: options.action || "", // empty action string defaults to android.intent.action.VIEW
1.182 + url: uri ? uri.spec : "",
1.183 + packageName: options.packageName || "",
1.184 + className: options.className || ""
1.185 + };
1.186 + },
1.187 +
1.188 + _launchApp: function launchApp(app, uri, callback) {
1.189 + if (callback) {
1.190 + let msg = this._getMessage("Intent:OpenForResult", uri, {
1.191 + packageName: app.packageName,
1.192 + className: app.activityName
1.193 + });
1.194 +
1.195 + sendMessageToJava(msg, function(data) {
1.196 + callback(data);
1.197 + });
1.198 + } else {
1.199 + let msg = this._getMessage("Intent:Open", uri, {
1.200 + packageName: app.packageName,
1.201 + className: app.activityName
1.202 + });
1.203 +
1.204 + sendMessageToJava(msg);
1.205 + }
1.206 + },
1.207 +
1.208 + _sendMessageSync: function(msg) {
1.209 + let res = null;
1.210 + sendMessageToJava(msg, function(data) {
1.211 + res = data;
1.212 + });
1.213 +
1.214 + let thread = Services.tm.currentThread;
1.215 + while (res == null)
1.216 + thread.processNextEvent(true);
1.217 +
1.218 + return res;
1.219 + },
1.220 +};
