1 files changed, 98 insertions, 0 deletions
diff --git a/catalog-ui/app/third-party/PunchOutRegistry.js b/catalog-ui/app/third-party/PunchOutRegistry.js
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+++ b/catalog-ui/app/third-party/PunchOutRegistry.js
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+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+(function(window) {
+    "use strict";
+
+    if (window.PunchOutRegistry) {
+        return;
+    }
+
+    var queuedFactoryRequests = new Map();
+    var factoryPromises = new Map();
+    var instancePromises = new Map();
+
+    function registerFactory(name, factory) {
+        if (factoryPromises.has(name) && !queuedFactoryRequests.has(name)) {
+            console.error("PunchOut \"" + name + "\" has been already registered");
+            return;
+        }
+        if (queuedFactoryRequests.has(name)) {
+            var factoryRequest = queuedFactoryRequests.get(name);
+            factoryRequest(factory);
+            queuedFactoryRequests.delete(name);
+        } else {
+            factoryPromises.set(name, Promise.resolve(factory));
+        }
+    }
+
+    function getFactoryPromise(name) {
+        var factoryPromise = factoryPromises.get(name);
+        if (!factoryPromise) {
+            factoryPromise = new Promise(function (resolveFactory) {
+                queuedFactoryRequests.set(name, resolveFactory);
+            });
+            factoryPromises.set(name, factoryPromise);
+        }
+        return factoryPromise;
+    }
+
+    function getInstancePromise(name, element) {
+        var factoryPromise;
+        var instancePromise = instancePromises.get(element);
+        if (!instancePromise) {
+            instancePromise = getFactoryPromise(name).then(function(factory) {
+                return factory();
+            });
+            instancePromises.set(element, instancePromise);
+        }
+        return instancePromise;
+    }
+
+    function renderPunchOut(params, element) {
+        var name = params.name;
+        var options = params.options || {};
+        var onEvent = params.onEvent || function () {};
+
+        getInstancePromise(name, element).then(function (punchOut) {
+            punchOut.render({options: options, onEvent: onEvent}, element);
+        });
+    }
+
+    function unmountPunchOut(element) {
+        if (!instancePromises.has(element)) {
+            console.error("There is no PunchOut in element", element);
+            return;
+        }
+        instancePromises.get(element).then(function(punchOut) {
+            punchOut.unmount(element);
+        });
+        instancePromises.delete(element);
+    }
+
+    var PunchOutRegistry = Object.freeze({
+        register: registerFactory,
+        render: renderPunchOut,
+        unmount: unmountPunchOut
+    });
+
+    window.PunchOutRegistry = PunchOutRegistry;
+
+})(this);