michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: const Ci = Components.interfaces;
michael@0: const Cu = Components.utils;
michael@0: const Cc = Components.classes;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: Cu.import("resource://gre/modules/Messaging.jsm");
michael@0: 
michael@0: function ContentDispatchChooser() {}
michael@0: 
michael@0: ContentDispatchChooser.prototype =
michael@0: {
michael@0:   classID: Components.ID("5a072a22-1e66-4100-afc1-07aed8b62fc5"),
michael@0: 
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentDispatchChooser]),
michael@0: 
michael@0:   get protoSvc() {
michael@0:     delete this.protoSvc;
michael@0:     return this.protoSvc = Cc["@mozilla.org/uriloader/external-protocol-service;1"].getService(Ci.nsIExternalProtocolService);
michael@0:   },
michael@0: 
michael@0:   _getChromeWin: function getChromeWin() {
michael@0:     try {
michael@0:       return Services.wm.getMostRecentWindow("navigator:browser");
michael@0:     } catch (e) {
michael@0:       throw Cr.NS_ERROR_FAILURE;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   ask: function ask(aHandler, aWindowContext, aURI, aReason) {
michael@0:     let window = null;
michael@0:     try {
michael@0:       if (aWindowContext)
michael@0:         window = aWindowContext.getInterface(Ci.nsIDOMWindow);
michael@0:     } catch (e) { /* it's OK to not have a window */ }
michael@0: 
michael@0:     // The current list is based purely on the scheme. Redo the query using the url to get more
michael@0:     // specific results.
michael@0:     aHandler = this.protoSvc.getProtocolHandlerInfoFromOS(aURI.spec, {});
michael@0: 
michael@0:     // The first handler in the set is the Android Application Chooser (which will fall back to a default if one is set)
michael@0:     // If we have more than one option, let the OS handle showing a list (if needed).
michael@0:     if (aHandler.possibleApplicationHandlers.length > 1) {
michael@0:       aHandler.launchWithURI(aURI, aWindowContext);
michael@0:     } else {
michael@0:       let win = this._getChromeWin();
michael@0:       if (win && win.NativeWindow) {
michael@0:         let bundle = Services.strings.createBundle("chrome://browser/locale/handling.properties");
michael@0:         let failedText = bundle.GetStringFromName("protocol.failed");
michael@0:         let searchText = bundle.GetStringFromName("protocol.toast.search");
michael@0: 
michael@0:         win.NativeWindow.toast.show(failedText, "long", {
michael@0:           button: {
michael@0:             label: searchText,
michael@0:             callback: function() {
michael@0:               let message = {
michael@0:                 type: "Intent:Open",
michael@0:                 url: "market://search?q=" + aURI.scheme,
michael@0:               };
michael@0: 
michael@0:               sendMessageToJava(message);
michael@0:             }
michael@0:           }
michael@0:         });
michael@0:       }
michael@0:     }
michael@0:   },
michael@0: };
michael@0: 
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([ContentDispatchChooser]);