gecko-dev/webapprt/PaymentUIGlue.js

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