Fix Polymer licensing issues

third_party/web-animations-js/sources/src/dimension-handler.js

-// Copyright 2014 Google Inc. 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.
-
-(function(scope, testing) {
-
-  function parseDimension(unitRegExp, string) {
-    string = string.trim().toLowerCase();
-
-    if (string == '0' && 'px'.search(unitRegExp) >= 0)
-      return {px: 0};
-
-    // If we have parenthesis, we're a calc and need to start with 'calc'.
-    if (!/^[^(]*$|^calc/.test(string))
-      return;
-    string = string.replace(/calc\(/g, '(');
-
-    // We tag units by prefixing them with 'U' (note that we are already
-    // lowercase) to prevent problems with types which are substrings of
-    // each other (although prefixes may be problematic!)
-    var matchedUnits = {};
-    string = string.replace(unitRegExp, function(match) {
-      matchedUnits[match] = null;
-      return 'U' + match;
-    });
-    var taggedUnitRegExp = 'U(' + unitRegExp.source + ')';
-
-    // Validating input is simply applying as many reductions as we can.
-    var typeCheck = string.replace(/[-+]?(\d*\.)?\d+/g, 'N')
-                          .replace(new RegExp('N' + taggedUnitRegExp, 'g'), 'D')
-                          .replace(/\s[+-]\s/g, 'O')
-                          .replace(/\s/g, '');
-    var reductions = [/N\*(D)/g, /(N|D)[*/]N/g, /(N|D)O\1/g, /\((N|D)\)/g];
-    var i = 0;
-    while (i < reductions.length) {
-      if (reductions[i].test(typeCheck)) {
-        typeCheck = typeCheck.replace(reductions[i], '$1');
-        i = 0;
-      } else {
-        i++;
-      }
-    }
-    if (typeCheck != 'D')
-      return;
-
-    for (var unit in matchedUnits) {
-      var result = eval(string.replace(new RegExp('U' + unit, 'g'), '').replace(new RegExp(taggedUnitRegExp, 'g'), '*0'));
-      if (!isFinite(result))
-        return;
-      matchedUnits[unit] = result;
-    }
-    return matchedUnits;
-  }
-
-  function mergeDimensionsNonNegative(left, right) {
-    return mergeDimensions(left, right, true);
-  }
-
-  function mergeDimensions(left, right, nonNegative) {
-    var units = [], unit;
-    for (unit in left)
-      units.push(unit);
-    for (unit in right) {
-      if (units.indexOf(unit) < 0)
-        units.push(unit);
-    }
-
-    left = units.map(function(unit) { return left[unit] || 0; });
-    right = units.map(function(unit) { return right[unit] || 0; });
-    return [left, right, function(values) {
-      var result = values.map(function(value, i) {
-        if (values.length == 1 && nonNegative) {
-          value = Math.max(value, 0);
-        }
-        // Scientific notation (e.g. 1e2) is not yet widely supported by browser vendors.
-        return scope.numberToString(value) + units[i];
-      }).join(' + ');
-      return values.length > 1 ? 'calc(' + result + ')' : result;
-    }];
-  }
-
-  var lengthUnits = 'px|em|ex|ch|rem|vw|vh|vmin|vmax|cm|mm|in|pt|pc';
-  var parseLength = parseDimension.bind(null, new RegExp(lengthUnits, 'g'));
-  var parseLengthOrPercent = parseDimension.bind(null, new RegExp(lengthUnits + '|%', 'g'));
-  var parseAngle = parseDimension.bind(null, /deg|rad|grad|turn/g);
-
-  scope.parseLength = parseLength;
-  scope.parseLengthOrPercent = parseLengthOrPercent;
-  scope.consumeLengthOrPercent = scope.consumeParenthesised.bind(null, parseLengthOrPercent);
-  scope.parseAngle = parseAngle;
-  scope.mergeDimensions = mergeDimensions;
-
-  var consumeLength = scope.consumeParenthesised.bind(null, parseLength);
-  var consumeSizePair = scope.consumeRepeated.bind(undefined, consumeLength, /^/);
-  var consumeSizePairList = scope.consumeRepeated.bind(undefined, consumeSizePair, /^,/);
-  scope.consumeSizePairList = consumeSizePairList;
-
-  var parseSizePairList = function(input) {
-    var result = consumeSizePairList(input);
-    if (result && result[1] == '') {
-      return result[0];
-    }
-  };
-
-  var mergeNonNegativeSizePair = scope.mergeNestedRepeated.bind(undefined, mergeDimensionsNonNegative, ' ');
-  var mergeNonNegativeSizePairList = scope.mergeNestedRepeated.bind(undefined, mergeNonNegativeSizePair, ',');
-  scope.mergeNonNegativeSizePair = mergeNonNegativeSizePair;
-
-  scope.addPropertiesHandler(parseSizePairList, mergeNonNegativeSizePairList, [
-    'background-size'
-  ]);
-
-  scope.addPropertiesHandler(parseLengthOrPercent, mergeDimensionsNonNegative, [
-    'border-bottom-width',
-    'border-image-width',
-    'border-left-width',
-    'border-right-width',
-    'border-top-width',
-    'flex-basis',
-    'font-size',
-    'height',
-    'line-height',
-    'max-height',
-    'max-width',
-    'outline-width',
-    'width',
-  ]);
-
-  scope.addPropertiesHandler(parseLengthOrPercent, mergeDimensions, [
-    'border-bottom-left-radius',
-    'border-bottom-right-radius',
-    'border-top-left-radius',
-    'border-top-right-radius',
-    'bottom',
-    'left',
-    'letter-spacing',
-    'margin-bottom',
-    'margin-left',
-    'margin-right',
-    'margin-top',
-    'min-height',
-    'min-width',
-    'outline-offset',
-    'padding-bottom',
-    'padding-left',
-    'padding-right',
-    'padding-top',
-    'perspective',
-    'right',
-    'shape-margin',
-    'text-indent',
-    'top',
-    'vertical-align',
-    'word-spacing',
-  ]);
-
-})(webAnimations1, webAnimationsTesting);