gecko-dev/b2g/chrome/content/payment.js

126 lines
4.2 KiB
JavaScript

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- /
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
// This JS shim contains the callbacks to fire DOMRequest events for
// navigator.pay API within the payment processor's scope.
"use strict";
dump("======================= payment.js ======================= \n");
let { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyServiceGetter(this, "cpmm",
"@mozilla.org/childprocessmessagemanager;1",
"nsIMessageSender");
XPCOMUtils.defineLazyServiceGetter(this, "uuidgen",
"@mozilla.org/uuid-generator;1",
"nsIUUIDGenerator");
#ifdef MOZ_B2G_RIL
XPCOMUtils.defineLazyServiceGetter(this, "mobileConnection",
"@mozilla.org/ril/content-helper;1",
"nsIMobileConnectionProvider");
#endif
const kClosePaymentFlowEvent = "close-payment-flow-dialog";
let _requestId;
let PaymentProvider = {
__exposedProps__: {
paymentSuccess: 'r',
paymentFailed: 'r',
iccIds: 'r'
},
_closePaymentFlowDialog: function _closePaymentFlowDialog(aCallback) {
// After receiving the payment provider confirmation about the
// successful or failed payment flow, we notify the UI to close the
// payment flow dialog and return to the caller application.
let id = kClosePaymentFlowEvent + "-" + uuidgen.generateUUID().toString();
let browser = Services.wm.getMostRecentWindow("navigator:browser");
let content = browser.getContentWindow();
if (!content) {
return;
}
let detail = {
type: kClosePaymentFlowEvent,
id: id,
requestId: _requestId
};
// In order to avoid race conditions, we wait for the UI to notify that
// it has successfully closed the payment flow and has recovered the
// caller app, before notifying the parent process to fire the success
// or error event over the DOMRequest.
content.addEventListener("mozContentEvent",
function closePaymentFlowReturn(evt) {
if (evt.detail.id == id && aCallback) {
aCallback();
}
content.removeEventListener("mozContentEvent",
closePaymentFlowReturn);
let glue = Cc["@mozilla.org/payment/ui-glue;1"]
.createInstance(Ci.nsIPaymentUIGlue);
glue.cleanup();
});
browser.shell.sendChromeEvent(detail);
},
paymentSuccess: function paymentSuccess(aResult) {
PaymentProvider._closePaymentFlowDialog(function notifySuccess() {
if (!_requestId) {
return;
}
cpmm.sendAsyncMessage("Payment:Success", { result: aResult,
requestId: _requestId });
});
},
paymentFailed: function paymentFailed(aErrorMsg) {
PaymentProvider._closePaymentFlowDialog(function notifyError() {
if (!_requestId) {
return;
}
cpmm.sendAsyncMessage("Payment:Failed", { errorMsg: aErrorMsg,
requestId: _requestId });
});
},
get iccIds() {
#ifdef MOZ_B2G_RIL
// Until bug 814629 is done, we only have support for a single SIM, so we
// can only provide a single ICC ID. However, we return an array so the
// payment provider facing API won't need to change once we support
// multiple SIMs.
return [mobileConnection.iccInfo.iccid];
#else
return null;
#endif
},
};
// We save the identifier of the DOM request, so we can dispatch the results
// of the payment flow to the appropriate content process.
addMessageListener("Payment:LoadShim", function receiveMessage(aMessage) {
_requestId = aMessage.json.requestId;
});
addEventListener("DOMWindowCreated", function(e) {
content.wrappedJSObject.mozPaymentProvider = PaymentProvider;
});