1// Copyright 2014 Google Inc. All rights reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15(function(shared) { 16 17 var silenced = {}; 18 19 shared.isDeprecated = function(feature, date, advice, plural) { 20 if (WEB_ANIMATIONS_TESTING) { 21 return true; 22 } 23 24 var auxVerb = plural ? 'are' : 'is'; 25 var today = new Date(); 26 var expiry = new Date(date); 27 expiry.setMonth(expiry.getMonth() + 3); // 3 months grace period 28 29 if (today < expiry) { 30 if (!(feature in silenced)) { 31 console.warn('Web Animations: ' + feature + ' ' + auxVerb + ' deprecated and will stop working on ' + expiry.toDateString() + '. ' + advice); 32 } 33 silenced[feature] = true; 34 return false; 35 } else { 36 return true; 37 } 38 }; 39 40 shared.deprecated = function(feature, date, advice, plural) { 41 var auxVerb = plural ? 'are' : 'is'; 42 if (shared.isDeprecated(feature, date, advice, plural)) { 43 throw new Error(feature + ' ' + auxVerb + ' no longer supported. ' + advice); 44 } 45 }; 46 47})(webAnimationsShared); 48