| /*global more*/ |
| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import Ember from 'ember'; |
| |
| const STATE_STORAGE_KEY = "pollingIsActive", |
| DEFAULT_LABEL = "default_label"; |
| |
| var MoreObject = more.Object; |
| |
| export default Ember.Service.extend({ |
| localStorage: Ember.inject.service("localStorage"), |
| env: Ember.inject.service("env"), |
| |
| interval: Ember.computed.oneWay("env.app.pollingInterval"), |
| |
| active: false, |
| isPolling: false, |
| scheduleID: null, |
| |
| polls: {}, |
| pollCount: 0, |
| |
| initState: Ember.on("init", function () { |
| var state = this.get("localStorage").get(STATE_STORAGE_KEY); |
| |
| if(state === undefined || state === null) { |
| state = true; |
| } |
| Ember.run.later(this, function () { |
| this.set("active", state); |
| }); |
| }), |
| stateObserver: Ember.observer("active", function () { |
| this.get("localStorage").set(STATE_STORAGE_KEY, this.get("active")); |
| this.callPoll(); |
| }), |
| |
| isReady: Ember.computed("active", "pollCount", function () { |
| return !!(this.get("active") && this.get("pollCount")); |
| }), |
| |
| callPoll: function () { |
| var that = this; |
| this.unSchedulePoll(); |
| if(this.get("isReady") && !this.get("isPolling")) { |
| var pollsPromises = []; |
| |
| this.set("isPolling", true); |
| |
| MoreObject.forEach(this.get("polls"), function (label, pollDef) { |
| pollsPromises.push(pollDef.callback.call(pollDef.context)); |
| }); |
| |
| Ember.RSVP.allSettled(pollsPromises).finally(function () { |
| that.set("isPolling", false); |
| that.schedulePoll(); |
| }); |
| } |
| }, |
| |
| schedulePoll: function () { |
| this.set("scheduleID", setTimeout(this.callPoll.bind(this), this.get("interval"))); |
| }, |
| unSchedulePoll: function () { |
| clearTimeout(this.get("scheduleID")); |
| }, |
| |
| setPoll: function (pollFunction, context, label) { |
| var polls = this.get("polls"), |
| pollCount; |
| |
| label = label || DEFAULT_LABEL; |
| polls[label] = { |
| context: context, |
| callback: pollFunction, |
| }; |
| this.set("pollCount", pollCount = Object.keys(polls).length); |
| |
| this.callPoll(); |
| }, |
| resetPoll: function (label) { |
| var polls = this.get("polls"), |
| pollCount; |
| |
| label = label || DEFAULT_LABEL; |
| delete polls[label]; |
| this.set("pollCount", pollCount = Object.keys(polls).length); |
| |
| if(!pollCount) { |
| this.unSchedulePoll(); |
| } |
| } |
| }); |