525 lines
16 KiB
JavaScript
525 lines
16 KiB
JavaScript
'use strict';
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function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
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function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }
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var OldValue = require('../old-value');
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var Value = require('../value');
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var utils = require('../utils');
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var parser = require('postcss-value-parser');
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var range = require('normalize-range');
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var isDirection = /top|left|right|bottom/gi;
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var Gradient = function (_Value) {
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_inherits(Gradient, _Value);
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function Gradient() {
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var _temp, _this, _ret;
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_classCallCheck(this, Gradient);
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for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
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args[_key] = arguments[_key];
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}
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return _ret = (_temp = (_this = _possibleConstructorReturn(this, _Value.call.apply(_Value, [this].concat(args))), _this), Object.defineProperty(_this, 'directions', {
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enumerable: true,
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writable: true,
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value: {
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top: 'bottom',
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left: 'right',
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bottom: 'top',
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right: 'left'
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}
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}), Object.defineProperty(_this, 'oldDirections', {
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enumerable: true,
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writable: true,
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value: {
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'top': 'left bottom, left top',
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'left': 'right top, left top',
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'bottom': 'left top, left bottom',
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'right': 'left top, right top',
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'top right': 'left bottom, right top',
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'top left': 'right bottom, left top',
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'right top': 'left bottom, right top',
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'right bottom': 'left top, right bottom',
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'bottom right': 'left top, right bottom',
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'bottom left': 'right top, left bottom',
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'left top': 'right bottom, left top',
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'left bottom': 'right top, left bottom'
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}
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}), _temp), _possibleConstructorReturn(_this, _ret);
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}
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// Direction to replace
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// Direction to replace
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/**
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* Change degrees for webkit prefix
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*/
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Gradient.prototype.replace = function replace(string, prefix) {
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var ast = parser(string);
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for (var _iterator = ast.nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var node = _ref;
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if (node.type === 'function' && node.value === this.name) {
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node.nodes = this.newDirection(node.nodes);
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node.nodes = this.normalize(node.nodes);
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if (prefix === '-webkit- old') {
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var changes = this.oldWebkit(node);
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if (!changes) {
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return false;
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}
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} else {
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node.nodes = this.convertDirection(node.nodes);
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node.value = prefix + node.value;
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}
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}
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}
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return ast.toString();
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};
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/**
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* Replace first token
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*/
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Gradient.prototype.replaceFirst = function replaceFirst(params) {
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for (var _len2 = arguments.length, words = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
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words[_key2 - 1] = arguments[_key2];
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}
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var prefix = words.map(function (i) {
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if (i === ' ') {
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return { type: 'space', value: i };
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} else {
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return { type: 'word', value: i };
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}
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});
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return prefix.concat(params.slice(1));
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};
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/**
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* Convert angle unit to deg
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*/
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Gradient.prototype.normalizeUnit = function normalizeUnit(str, full) {
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var num = parseFloat(str);
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var deg = num / full * 360;
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return deg + 'deg';
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};
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/**
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* Normalize angle
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*/
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Gradient.prototype.normalize = function normalize(nodes) {
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if (!nodes[0]) return nodes;
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if (/-?\d+(.\d+)?grad/.test(nodes[0].value)) {
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nodes[0].value = this.normalizeUnit(nodes[0].value, 400);
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} else if (/-?\d+(.\d+)?rad/.test(nodes[0].value)) {
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nodes[0].value = this.normalizeUnit(nodes[0].value, 2 * Math.PI);
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} else if (/-?\d+(.\d+)?turn/.test(nodes[0].value)) {
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nodes[0].value = this.normalizeUnit(nodes[0].value, 1);
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} else if (nodes[0].value.indexOf('deg') !== -1) {
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var num = parseFloat(nodes[0].value);
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num = range.wrap(0, 360, num);
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nodes[0].value = num + 'deg';
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}
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if (nodes[0].value === '0deg') {
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nodes = this.replaceFirst(nodes, 'to', ' ', 'top');
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} else if (nodes[0].value === '90deg') {
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nodes = this.replaceFirst(nodes, 'to', ' ', 'right');
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} else if (nodes[0].value === '180deg') {
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nodes = this.replaceFirst(nodes, 'to', ' ', 'bottom');
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} else if (nodes[0].value === '270deg') {
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nodes = this.replaceFirst(nodes, 'to', ' ', 'left');
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}
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return nodes;
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};
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/**
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* Replace old direction to new
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*/
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Gradient.prototype.newDirection = function newDirection(params) {
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if (params[0].value === 'to') {
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return params;
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}
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isDirection.lastIndex = 0; // reset search index of global regexp
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if (!isDirection.test(params[0].value)) {
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return params;
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}
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params.unshift({
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type: 'word',
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value: 'to'
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}, {
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type: 'space',
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value: ' '
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});
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for (var i = 2; i < params.length; i++) {
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if (params[i].type === 'div') {
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break;
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}
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if (params[i].type === 'word') {
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params[i].value = this.revertDirection(params[i].value);
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}
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}
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return params;
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};
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/**
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* Change new direction to old
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*/
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Gradient.prototype.convertDirection = function convertDirection(params) {
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if (params.length > 0) {
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if (params[0].value === 'to') {
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this.fixDirection(params);
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} else if (params[0].value.indexOf('deg') !== -1) {
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this.fixAngle(params);
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} else if (params[2] && params[2].value === 'at') {
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this.fixRadial(params);
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}
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}
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return params;
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};
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/**
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* Replace `to top left` to `bottom right`
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*/
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Gradient.prototype.fixDirection = function fixDirection(params) {
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params.splice(0, 2);
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for (var _iterator2 = params, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
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var _ref2;
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if (_isArray2) {
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if (_i2 >= _iterator2.length) break;
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_ref2 = _iterator2[_i2++];
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} else {
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_i2 = _iterator2.next();
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if (_i2.done) break;
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_ref2 = _i2.value;
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}
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var param = _ref2;
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if (param.type === 'div') {
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break;
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}
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if (param.type === 'word') {
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param.value = this.revertDirection(param.value);
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}
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}
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};
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/**
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* Add 90 degrees
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*/
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Gradient.prototype.fixAngle = function fixAngle(params) {
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var first = params[0].value;
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first = parseFloat(first);
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first = Math.abs(450 - first) % 360;
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first = this.roundFloat(first, 3);
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params[0].value = first + 'deg';
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};
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/**
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* Fix radial direction syntax
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*/
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Gradient.prototype.fixRadial = function fixRadial(params) {
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var first = params[0];
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var second = [];
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var i = void 0;
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var div = void 0;
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for (i = 4; i < params.length; i++) {
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if (params[i].type === 'div') {
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div = params[i];
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break;
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} else {
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second.push(params[i]);
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}
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}
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params.splice.apply(params, [0, i].concat(second, [div, first]));
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};
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Gradient.prototype.revertDirection = function revertDirection(word) {
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return this.directions[word.toLowerCase()] || word;
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};
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/**
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* Round float and save digits under dot
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*/
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Gradient.prototype.roundFloat = function roundFloat(float, digits) {
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return parseFloat(float.toFixed(digits));
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};
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/**
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* Convert to old webkit syntax
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*/
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Gradient.prototype.oldWebkit = function oldWebkit(node) {
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var nodes = node.nodes;
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var string = parser.stringify(node.nodes);
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if (this.name !== 'linear-gradient') {
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return false;
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}
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if (nodes[0] && nodes[0].value.indexOf('deg') !== -1) {
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return false;
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}
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if (string.indexOf('px') !== -1 || string.indexOf('-corner') !== -1 || string.indexOf('-side') !== -1) {
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return false;
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}
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var params = [[]];
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for (var _iterator3 = nodes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
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var _ref3;
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if (_isArray3) {
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if (_i3 >= _iterator3.length) break;
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_ref3 = _iterator3[_i3++];
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} else {
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_i3 = _iterator3.next();
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if (_i3.done) break;
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_ref3 = _i3.value;
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}
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var i = _ref3;
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params[params.length - 1].push(i);
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if (i.type === 'div' && i.value === ',') {
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params.push([]);
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}
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}
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this.oldDirection(params);
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this.colorStops(params);
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node.nodes = [];
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for (var _iterator4 = params, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
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var _ref4;
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if (_isArray4) {
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if (_i4 >= _iterator4.length) break;
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_ref4 = _iterator4[_i4++];
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} else {
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_i4 = _iterator4.next();
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if (_i4.done) break;
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_ref4 = _i4.value;
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}
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var param = _ref4;
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node.nodes = node.nodes.concat(param);
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}
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node.nodes.unshift({ type: 'word', value: 'linear' }, this.cloneDiv(node.nodes));
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node.value = '-webkit-gradient';
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return true;
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};
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/**
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* Change direction syntax to old webkit
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*/
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Gradient.prototype.oldDirection = function oldDirection(params) {
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var div = this.cloneDiv(params[0]);
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if (params[0][0].value !== 'to') {
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return params.unshift([{ type: 'word', value: this.oldDirections.bottom }, div]);
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} else {
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var _words = [];
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for (var _iterator5 = params[0].slice(2), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
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var _ref5;
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if (_isArray5) {
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if (_i5 >= _iterator5.length) break;
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_ref5 = _iterator5[_i5++];
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} else {
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_i5 = _iterator5.next();
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if (_i5.done) break;
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_ref5 = _i5.value;
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}
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var node = _ref5;
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if (node.type === 'word') {
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_words.push(node.value.toLowerCase());
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}
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}
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_words = _words.join(' ');
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var old = this.oldDirections[_words] || _words;
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params[0] = [{ type: 'word', value: old }, div];
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return params[0];
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}
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};
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/**
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* Get div token from exists parameters
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*/
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Gradient.prototype.cloneDiv = function cloneDiv(params) {
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for (var _iterator6 = params, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
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var _ref6;
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if (_isArray6) {
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if (_i6 >= _iterator6.length) break;
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_ref6 = _iterator6[_i6++];
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} else {
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_i6 = _iterator6.next();
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if (_i6.done) break;
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_ref6 = _i6.value;
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}
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var i = _ref6;
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if (i.type === 'div' && i.value === ',') {
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return i;
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}
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}
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return { type: 'div', value: ',', after: ' ' };
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};
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/**
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* Change colors syntax to old webkit
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*/
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Gradient.prototype.colorStops = function colorStops(params) {
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var result = [];
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for (var i = 0; i < params.length; i++) {
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var pos = void 0;
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var param = params[i];
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var item = void 0;
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if (i === 0) {
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continue;
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}
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var color = parser.stringify(param[0]);
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if (param[1] && param[1].type === 'word') {
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pos = param[1].value;
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} else if (param[2] && param[2].type === 'word') {
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pos = param[2].value;
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}
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var stop = void 0;
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if (i === 1 && (!pos || pos === '0%')) {
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stop = 'from(' + color + ')';
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} else if (i === params.length - 1 && (!pos || pos === '100%')) {
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stop = 'to(' + color + ')';
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} else if (pos) {
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stop = 'color-stop(' + pos + ', ' + color + ')';
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} else {
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stop = 'color-stop(' + color + ')';
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}
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var div = param[param.length - 1];
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params[i] = [{ type: 'word', value: stop }];
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if (div.type === 'div' && div.value === ',') {
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item = params[i].push(div);
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}
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result.push(item);
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}
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return result;
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};
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/**
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* Remove old WebKit gradient too
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*/
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Gradient.prototype.old = function old(prefix) {
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if (prefix === '-webkit-') {
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var type = this.name === 'linear-gradient' ? 'linear' : 'radial';
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var string = '-gradient';
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var regexp = utils.regexp('-webkit-(' + type + '-gradient|gradient\\(\\s*' + type + ')', false);
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return new OldValue(this.name, prefix + this.name, string, regexp);
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} else {
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return _Value.prototype.old.call(this, prefix);
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}
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};
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/**
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* Do not add non-webkit prefixes for list-style and object
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*/
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Gradient.prototype.add = function add(decl, prefix) {
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var p = decl.prop;
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if (p.indexOf('mask') !== -1) {
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if (prefix === '-webkit-' || prefix === '-webkit- old') {
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return _Value.prototype.add.call(this, decl, prefix);
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}
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} else if (p === 'list-style' || p === 'list-style-image' || p === 'content') {
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if (prefix === '-webkit-' || prefix === '-webkit- old') {
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return _Value.prototype.add.call(this, decl, prefix);
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}
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} else {
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return _Value.prototype.add.call(this, decl, prefix);
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}
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return undefined;
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};
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return Gradient;
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}(Value);
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Object.defineProperty(Gradient, 'names', {
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enumerable: true,
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writable: true,
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value: ['linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient']
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});
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module.exports = Gradient; |