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 { 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: 
michael@0: XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
michael@0:                                   "@mozilla.org/childprocessmessagemanager;1",
michael@0:                                   "nsIMessageSender");
michael@0: 
michael@0: function paymentSuccess(aRequestId) {
michael@0:   return function(aResult) {
michael@0:     closePaymentWindow(aRequestId, function() {
michael@0:       cpmm.sendAsyncMessage("Payment:Success", { requestId: aRequestId,
michael@0:                                                  result: aResult });
michael@0:     });
michael@0:   };
michael@0: }
michael@0: 
michael@0: function paymentFailed(aRequestId) {
michael@0:   return function(aErrorMsg) {
michael@0:     closePaymentWindow(aRequestId, function() {
michael@0:       cpmm.sendAsyncMessage("Payment:Failed", { requestId: aRequestId,
michael@0:                                                 errorMsg: aErrorMsg });
michael@0:     });
michael@0:   };
michael@0: }
michael@0: 
michael@0: let payments = {};
michael@0: 
michael@0: function closePaymentWindow(aId, aCallback) {
michael@0:   if (payments[aId]) {
michael@0:     payments[aId].handled = true;
michael@0:     payments[aId].win.close();
michael@0:     payments[aId] = null;
michael@0:   }
michael@0: 
michael@0:   aCallback();
michael@0: }
michael@0: 
michael@0: function PaymentUI() {}
michael@0: 
michael@0: PaymentUI.prototype = {
michael@0:   classID: Components.ID("{ede1124f-72e8-4a31-9567-3270d46f21fb}"),
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIPaymentUIGlue]),
michael@0: 
michael@0:   confirmPaymentRequest: function(aRequestId, aRequests, aSuccessCb, aErrorCb) {
michael@0:     // If there's only one payment provider that will work, just move on
michael@0:     // without prompting the user.
michael@0:     if (aRequests.length == 1) {
michael@0:       aSuccessCb.onresult(aRequestId, aRequests[0].type);
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     let items = [];
michael@0: 
michael@0:     // Otherwise, let the user select a payment provider from a list.
michael@0:     for (let i = 0; i < aRequests.length; i++) {
michael@0:       let request = aRequests[i];
michael@0:       let requestText = request.providerName;
michael@0:       if (request.productPrice && Array.isArray(request.productPrice)) {
michael@0:         // We should guess the user currency and use that instead.
michael@0:         requestText += " (" + request.productPrice[0].amount + " " +
michael@0:                               request.productPrice[0].currency + ")";
michael@0:       }
michael@0:       items.push(requestText);
michael@0:     }
michael@0: 
michael@0:     let selected = {};
michael@0: 
michael@0:     let bundle = Services.strings.
michael@0:                    createBundle("chrome://webapprt/locale/webapp.properties");
michael@0:     let result = Services.prompt.
michael@0:                    select(null, bundle.GetStringFromName("paymentDialog.title"),
michael@0:                           bundle.GetStringFromName("paymentDialog.message"),
michael@0:                           items.length, items, selected);
michael@0:     if (result) {
michael@0:       aSuccessCb.onresult(aRequestId,
michael@0:                           aRequests[selected.value].type);
michael@0:     } else {
michael@0:       aErrorCb.onresult(aRequestId, "USER_CANCELLED");
michael@0:     }
michael@0:   },
michael@0: 
michael@0:   showPaymentFlow: function(aRequestId, aPaymentFlowInfo, aErrorCb) {
michael@0:     let win = Services.ww.
michael@0:                 openWindow(null,
michael@0:                            "chrome://webapprt/content/webapp.xul",
michael@0:                            "_blank",
michael@0:                            "chrome,dialog=no,resizable,scrollbars,centerscreen",
michael@0:                            null);
michael@0: 
michael@0:     // Store a reference to the window so that we can close it when the payment
michael@0:     // succeeds or fails.
michael@0:     payments[aRequestId] = { win: win, handled: false };
michael@0: 
michael@0:     // Inject paymentSuccess and paymentFailed methods into the document after
michael@0:     // its loaded.
michael@0:     win.addEventListener("DOMContentLoaded", function onDOMContentLoaded() {
michael@0:       win.removeEventListener("DOMContentLoaded", onDOMContentLoaded);
michael@0: 
michael@0:       let browserElement = win.document.getElementById("content");
michael@0:       browserElement.
michael@0:         setAttribute("src", aPaymentFlowInfo.uri + aPaymentFlowInfo.jwt);
michael@0: 
michael@0:       browserElement.addEventListener("DOMWindowCreated",
michael@0:         function onDOMWindowCreated() {
michael@0:           browserElement.removeEventListener("DOMWindowCreated",
michael@0:                                              onDOMWindowCreated);
michael@0: 
michael@0: 
michael@0:           win.document.getElementById("content").contentDocument.defaultView
michael@0:              .wrappedJSObject.mozPaymentProvider = {
michael@0:                __exposedProps__: {
michael@0:                  paymentSuccess: 'r',
michael@0:                  paymentFailed: 'r'
michael@0:                },
michael@0:                paymentSuccess: paymentSuccess(aRequestId),
michael@0:                paymentFailed: paymentFailed(aRequestId)
michael@0:              };
michael@0:         }, true);
michael@0:     });
michael@0: 
michael@0:     let winObserver = function(aClosedWin, aTopic) {
michael@0:       if (aTopic == "domwindowclosed") {
michael@0:         // Fail the payment if the window is closed.
michael@0:         if (aClosedWin == win) {
michael@0:           Services.ww.unregisterNotification(winObserver);
michael@0:           if (payments[aRequestId] && !payments[aRequestId].handled) {
michael@0:             aErrorCb.onresult(aRequestId, "USER_CANCELLED");
michael@0:           }
michael@0:         }
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     Services.ww.registerNotification(winObserver);
michael@0:   },
michael@0: 
michael@0:   cleanup: function() {
michael@0:   },
michael@0: }
michael@0: 
michael@0: this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PaymentUI]);