87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = generatePrefixMap;
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var _caniuseApi = require('caniuse-api');
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var _propertyMap = require('./maps/propertyMap');
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var _propertyMap2 = _interopRequireDefault(_propertyMap);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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var prefixBrowserMap = {
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chrome: 'Webkit',
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safari: 'Webkit',
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firefox: 'Moz',
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opera: 'Webkit',
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ie: 'ms',
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edge: 'ms',
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ios_saf: 'Webkit',
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android: 'Webkit',
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and_chr: 'Webkit',
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and_uc: 'Webkit',
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op_mini: 'Webkit',
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ie_mob: 'ms'
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// remove flexprops from IE
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};var flexPropsIE = ['alignContent', 'alignSelf', 'alignItems', 'justifyContent', 'order', 'flexGrow', 'flexShrink', 'flexBasis'];
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function filterAndRemoveIfEmpty(map, property, filter) {
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if (map[property]) {
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map[property] = map[property].filter(filter);
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if (map[property].length === 0) {
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delete map[property];
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}
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}
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}
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function generatePrefixMap(browserList) {
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var prefixMap = {};
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for (var browser in prefixBrowserMap) {
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var prefix = prefixBrowserMap[browser];
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for (var keyword in _propertyMap2.default) {
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var keywordProperties = [].concat(_propertyMap2.default[keyword]);
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var versions = (0, _caniuseApi.getSupport)(keyword);
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for (var i = 0, len = keywordProperties.length; i < len; ++i) {
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if (versions[browser].x >= browserList[browser]) {
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var property = keywordProperties[i];
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if (!prefixMap[property]) {
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prefixMap[property] = [];
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}
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if (prefixMap[property].indexOf(prefix) === -1) {
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prefixMap[property].push(prefix);
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}
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}
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}
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}
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}
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// remove flexProps from IE and Firefox due to alternative syntax
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for (var _i = 0, _len = flexPropsIE.length; _i < _len; ++_i) {
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filterAndRemoveIfEmpty(prefixMap, flexPropsIE[_i], function (prefix) {
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return prefix !== 'ms' && prefix !== 'Moz';
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});
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}
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// remove transition from Moz and Webkit as they are handled
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// specially by the transition plugins
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filterAndRemoveIfEmpty(prefixMap, 'transition', function (prefix) {
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return prefix !== 'Moz' && prefix !== 'Webkit';
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});
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// remove WebkitFlexDirection as it does not exist
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filterAndRemoveIfEmpty(prefixMap, 'flexDirection', function (prefix) {
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return prefix !== 'Moz';
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});
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return prefixMap;
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} |