webapprt/PaymentUIGlue.js

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 "use strict";
   6
   7 const { interfaces: Ci, utils: Cu } = Components;
   8
   9 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
  10 Cu.import("resource://gre/modules/Services.jsm");
  11
  12 XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
  13                                   "@mozilla.org/childprocessmessagemanager;1",
  14                                   "nsIMessageSender");
  15
  16 function paymentSuccess(aRequestId) {
  17   return function(aResult) {
  18     closePaymentWindow(aRequestId, function() {
  19       cpmm.sendAsyncMessage("Payment:Success", { requestId: aRequestId,
  20                                                  result: aResult });
  21     });
  22   };
  23 }
  24
  25 function paymentFailed(aRequestId) {
  26   return function(aErrorMsg) {
  27     closePaymentWindow(aRequestId, function() {
  28       cpmm.sendAsyncMessage("Payment:Failed", { requestId: aRequestId,
  29                                                 errorMsg: aErrorMsg });
  30     });
  31   };
  32 }
  33
  34 let payments = {};
  35
  36 function closePaymentWindow(aId, aCallback) {
  37   if (payments[aId]) {
  38     payments[aId].handled = true;
  39     payments[aId].win.close();
  40     payments[aId] = null;
  41   }
  42
  43   aCallback();
  44 }
  45
  46 function PaymentUI() {}
  47
  48 PaymentUI.prototype = {
  49   classID: Components.ID("{ede1124f-72e8-4a31-9567-3270d46f21fb}"),
  50   QueryInterface: XPCOMUtils.generateQI([Ci.nsIPaymentUIGlue]),
  51
  52   confirmPaymentRequest: function(aRequestId, aRequests, aSuccessCb, aErrorCb) {
  53     // If there's only one payment provider that will work, just move on
  54     // without prompting the user.
  55     if (aRequests.length == 1) {
  56       aSuccessCb.onresult(aRequestId, aRequests[0].type);
  57       return;
  58     }
  59
  60     let items = [];
  61
  62     // Otherwise, let the user select a payment provider from a list.
  63     for (let i = 0; i < aRequests.length; i++) {
  64       let request = aRequests[i];
  65       let requestText = request.providerName;
  66       if (request.productPrice && Array.isArray(request.productPrice)) {
  67         // We should guess the user currency and use that instead.
  68         requestText += " (" + request.productPrice[0].amount + " " +
  69                               request.productPrice[0].currency + ")";
  70       }
  71       items.push(requestText);
  72     }
  73
  74     let selected = {};
  75
  76     let bundle = Services.strings.
  77                    createBundle("chrome://webapprt/locale/webapp.properties");
  78     let result = Services.prompt.
  79                    select(null, bundle.GetStringFromName("paymentDialog.title"),
  80                           bundle.GetStringFromName("paymentDialog.message"),
  81                           items.length, items, selected);
  82     if (result) {
  83       aSuccessCb.onresult(aRequestId,
  84                           aRequests[selected.value].type);
  85     } else {
  86       aErrorCb.onresult(aRequestId, "USER_CANCELLED");
  87     }
  88   },
  89
  90   showPaymentFlow: function(aRequestId, aPaymentFlowInfo, aErrorCb) {
  91     let win = Services.ww.
  92                 openWindow(null,
  93                            "chrome://webapprt/content/webapp.xul",
  94                            "_blank",
  95                            "chrome,dialog=no,resizable,scrollbars,centerscreen",
  96                            null);
  97
  98     // Store a reference to the window so that we can close it when the payment
  99     // succeeds or fails.
 100     payments[aRequestId] = { win: win, handled: false };
 101
 102     // Inject paymentSuccess and paymentFailed methods into the document after
 103     // its loaded.
 104     win.addEventListener("DOMContentLoaded", function onDOMContentLoaded() {
 105       win.removeEventListener("DOMContentLoaded", onDOMContentLoaded);
 106
 107       let browserElement = win.document.getElementById("content");
 108       browserElement.
 109         setAttribute("src", aPaymentFlowInfo.uri + aPaymentFlowInfo.jwt);
 110
 111       browserElement.addEventListener("DOMWindowCreated",
 112         function onDOMWindowCreated() {
 113           browserElement.removeEventListener("DOMWindowCreated",
 114                                              onDOMWindowCreated);
 115
 116
 117           win.document.getElementById("content").contentDocument.defaultView
 118              .wrappedJSObject.mozPaymentProvider = {
 119                __exposedProps__: {
 120                  paymentSuccess: 'r',
 121                  paymentFailed: 'r'
 122                },
 123                paymentSuccess: paymentSuccess(aRequestId),
 124                paymentFailed: paymentFailed(aRequestId)
 125              };
 126         }, true);
 127     });
 128
 129     let winObserver = function(aClosedWin, aTopic) {
 130       if (aTopic == "domwindowclosed") {
 131         // Fail the payment if the window is closed.
 132         if (aClosedWin == win) {
 133           Services.ww.unregisterNotification(winObserver);
 134           if (payments[aRequestId] && !payments[aRequestId].handled) {
 135             aErrorCb.onresult(aRequestId, "USER_CANCELLED");
 136           }
 137         }
 138       }
 139     }
 140
 141     Services.ww.registerNotification(winObserver);
 142   },
 143
 144   cleanup: function() {
 145   },
 146 }
 147
 148 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([PaymentUI]);