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 file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: const {classes: Cc, interfaces: Ci, utils: Cu} = Components;
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/DOMRequestHelper.jsm");
michael@0: 
michael@0: const PAYMENTCONTENTHELPER_CID =
michael@0:   Components.ID("{a920adc0-c36e-4fd0-8de0-aac1ac6ebbd0}");
michael@0: 
michael@0: const PAYMENT_IPC_MSG_NAMES = ["Payment:Success",
michael@0:                                "Payment:Failed"];
michael@0: 
michael@0: const PREF_DEBUG = "dom.payment.debug";
michael@0: 
michael@0: XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
michael@0:                                    "@mozilla.org/childprocessmessagemanager;1",
michael@0:                                    "nsIMessageSender");
michael@0: 
michael@0: function PaymentContentHelper() {
michael@0: };
michael@0: 
michael@0: PaymentContentHelper.prototype = {
michael@0:   __proto__: DOMRequestIpcHelper.prototype,
michael@0: 
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsINavigatorPayment,
michael@0:                                          Ci.nsIDOMGlobalPropertyInitializer,
michael@0:                                          Ci.nsISupportsWeakReference,
michael@0:                                          Ci.nsIObserver]),
michael@0:   classID:        PAYMENTCONTENTHELPER_CID,
michael@0:   classInfo:      XPCOMUtils.generateCI({
michael@0:     classID: PAYMENTCONTENTHELPER_CID,
michael@0:     contractID: "@mozilla.org/payment/content-helper;1",
michael@0:     classDescription: "Payment Content Helper",
michael@0:     flags: Ci.nsIClassInfo.DOM_OBJECT,
michael@0:     interfaces: [Ci.nsINavigatorPayment]
michael@0:   }),
michael@0: 
michael@0:   // nsINavigatorPayment
michael@0: 
michael@0:   pay: function pay(aJwts) {
michael@0:     let request = this.createRequest();
michael@0:     let requestId = this.getRequestId(request);
michael@0: 
michael@0:     let docShell = this._window.QueryInterface(Ci.nsIInterfaceRequestor)
michael@0:                    .getInterface(Ci.nsIWebNavigation)
michael@0:                    .QueryInterface(Ci.nsIDocShell);
michael@0:     if (!docShell.isActive) {
michael@0:       if (this._debug) {
michael@0:         this.LOG("The caller application is a background app. No request " +
michael@0:                   "will be sent");
michael@0:       }
michael@0:       let runnable = {
michael@0:         run: function run() {
michael@0:           Services.DOMRequest.fireError(request, "BACKGROUND_APP");
michael@0:         }
michael@0:       }
michael@0:       Services.tm.currentThread.dispatch(runnable,
michael@0:                                          Ci.nsIThread.DISPATCH_NORMAL);
michael@0:       return request;
michael@0:     }
michael@0: 
michael@0:     if (!Array.isArray(aJwts)) {
michael@0:       aJwts = [aJwts];
michael@0:     }
michael@0: 
michael@0:     cpmm.sendAsyncMessage("Payment:Pay", {
michael@0:       jwts: aJwts,
michael@0:       requestId: requestId
michael@0:     });
michael@0:     return request;
michael@0:   },
michael@0: 
michael@0:   // nsIDOMGlobalPropertyInitializer
michael@0: 
michael@0:   init: function(aWindow) {
michael@0:     try {
michael@0:       if (!Services.prefs.getBoolPref("dom.mozPay.enabled")) {
michael@0:         return null;
michael@0:       }
michael@0:     } catch (e) {
michael@0:       return null;
michael@0:     }
michael@0: 
michael@0:     this._window = aWindow;
michael@0:     this.initDOMRequestHelper(aWindow, PAYMENT_IPC_MSG_NAMES);
michael@0: 
michael@0:     try {
michael@0:       this._debug =
michael@0:         Services.prefs.getPrefType(PREF_DEBUG) == Ci.nsIPrefBranch.PREF_BOOL
michael@0:         && Services.prefs.getBoolPref(PREF_DEBUG);
michael@0:     } catch(e) {
michael@0:       this._debug = false;
michael@0:     }
michael@0: 
michael@0:     return this.pay.bind(this);
michael@0:   },
michael@0: 
michael@0:   // nsIFrameMessageListener
michael@0: 
michael@0:   receiveMessage: function receiveMessage(aMessage) {
michael@0:     let name = aMessage.name;
michael@0:     let msg = aMessage.json;
michael@0:     if (this._debug) {
michael@0:       this.LOG("Received message '" + name + "': " + JSON.stringify(msg));
michael@0:     }
michael@0:     let requestId = msg.requestId;
michael@0:     let request = this.takeRequest(requestId);
michael@0:     if (!request) {
michael@0:       return;
michael@0:     }
michael@0:     switch (name) {
michael@0:       case "Payment:Success":
michael@0:         Services.DOMRequest.fireSuccess(request, msg.result);
michael@0:         break;
michael@0:       case "Payment:Failed":
michael@0:         Services.DOMRequest.fireError(request, msg.errorMsg);
michael@0:         break;
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   LOG: function LOG(s) {
michael@0:     if (!this._debug) {
michael@0:       return;
michael@0:     }
michael@0:     dump("-*- PaymentContentHelper: " + s + "\n");
michael@0:   }
michael@0: };
michael@0: 
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PaymentContentHelper]);