diff options
Diffstat (limited to 'node_modules/autoprefixer/lib/hacks/gradient.js')
| -rw-r--r-- | node_modules/autoprefixer/lib/hacks/gradient.js | 581 |
1 files changed, 581 insertions, 0 deletions
diff --git a/node_modules/autoprefixer/lib/hacks/gradient.js b/node_modules/autoprefixer/lib/hacks/gradient.js new file mode 100644 index 0000000..c1cc747 --- /dev/null +++ b/node_modules/autoprefixer/lib/hacks/gradient.js @@ -0,0 +1,581 @@ +"use strict"; + +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; } + +function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } + +function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; _defaults(subClass, superClass); } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +var parser = require('postcss-value-parser'); + +var range = require('normalize-range'); + +var OldValue = require('../old-value'); + +var Value = require('../value'); + +var utils = require('../utils'); + +var IS_DIRECTION = /top|left|right|bottom/gi; + +var Gradient = +/*#__PURE__*/ +function (_Value) { + _inheritsLoose(Gradient, _Value); + + function Gradient() { + var _this; + + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + _this = _Value.call.apply(_Value, [this].concat(args)) || this; + + _defineProperty(_assertThisInitialized(_this), "directions", { + top: 'bottom', + left: 'right', + bottom: 'top', + right: 'left' + }); + + _defineProperty(_assertThisInitialized(_this), "oldDirections", { + 'top': 'left bottom, left top', + 'left': 'right top, left top', + 'bottom': 'left top, left bottom', + 'right': 'left top, right top', + 'top right': 'left bottom, right top', + 'top left': 'right bottom, left top', + 'right top': 'left bottom, right top', + 'right bottom': 'left top, right bottom', + 'bottom right': 'left top, right bottom', + 'bottom left': 'right top, left bottom', + 'left top': 'right bottom, left top', + 'left bottom': 'right top, left bottom' + }); + + return _this; + } + + var _proto = Gradient.prototype; + + /** + * Change degrees for webkit prefix + */ + _proto.replace = function replace(string, prefix) { + var ast = parser(string); + + for (var _iterator = ast.nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) { + var _ref; + + if (_isArray) { + if (_i >= _iterator.length) break; + _ref = _iterator[_i++]; + } else { + _i = _iterator.next(); + if (_i.done) break; + _ref = _i.value; + } + + var node = _ref; + + if (node.type === 'function' && node.value === this.name) { + node.nodes = this.newDirection(node.nodes); + node.nodes = this.normalize(node.nodes); + + if (prefix === '-webkit- old') { + var changes = this.oldWebkit(node); + + if (!changes) { + return false; + } + } else { + node.nodes = this.convertDirection(node.nodes); + node.value = prefix + node.value; + } + } + } + + return ast.toString(); + } + /** + * Replace first token + */ + ; + + _proto.replaceFirst = function replaceFirst(params) { + for (var _len2 = arguments.length, words = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) { + words[_key2 - 1] = arguments[_key2]; + } + + var prefix = words.map(function (i) { + if (i === ' ') { + return { + type: 'space', + value: i + }; + } + + return { + type: 'word', + value: i + }; + }); + return prefix.concat(params.slice(1)); + } + /** + * Convert angle unit to deg + */ + ; + + _proto.normalizeUnit = function normalizeUnit(str, full) { + var num = parseFloat(str); + var deg = num / full * 360; + return deg + "deg"; + } + /** + * Normalize angle + */ + ; + + _proto.normalize = function normalize(nodes) { + if (!nodes[0]) return nodes; + + if (/-?\d+(.\d+)?grad/.test(nodes[0].value)) { + nodes[0].value = this.normalizeUnit(nodes[0].value, 400); + } else if (/-?\d+(.\d+)?rad/.test(nodes[0].value)) { + nodes[0].value = this.normalizeUnit(nodes[0].value, 2 * Math.PI); + } else if (/-?\d+(.\d+)?turn/.test(nodes[0].value)) { + nodes[0].value = this.normalizeUnit(nodes[0].value, 1); + } else if (nodes[0].value.indexOf('deg') !== -1) { + var num = parseFloat(nodes[0].value); + num = range.wrap(0, 360, num); + nodes[0].value = num + "deg"; + } + + if (nodes[0].value === '0deg') { + nodes = this.replaceFirst(nodes, 'to', ' ', 'top'); + } else if (nodes[0].value === '90deg') { + nodes = this.replaceFirst(nodes, 'to', ' ', 'right'); + } else if (nodes[0].value === '180deg') { + nodes = this.replaceFirst(nodes, 'to', ' ', 'bottom'); + } else if (nodes[0].value === '270deg') { + nodes = this.replaceFirst(nodes, 'to', ' ', 'left'); + } + + return nodes; + } + /** + * Replace old direction to new + */ + ; + + _proto.newDirection = function newDirection(params) { + if (params[0].value === 'to') { + return params; + } + + IS_DIRECTION.lastIndex = 0; // reset search index of global regexp + + if (!IS_DIRECTION.test(params[0].value)) { + return params; + } + + params.unshift({ + type: 'word', + value: 'to' + }, { + type: 'space', + value: ' ' + }); + + for (var i = 2; i < params.length; i++) { + if (params[i].type === 'div') { + break; + } + + if (params[i].type === 'word') { + params[i].value = this.revertDirection(params[i].value); + } + } + + return params; + } + /** + * Look for at word + */ + ; + + _proto.isRadial = function isRadial(params) { + var state = 'before'; + + for (var _iterator2 = params, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) { + var _ref2; + + if (_isArray2) { + if (_i2 >= _iterator2.length) break; + _ref2 = _iterator2[_i2++]; + } else { + _i2 = _iterator2.next(); + if (_i2.done) break; + _ref2 = _i2.value; + } + + var param = _ref2; + + if (state === 'before' && param.type === 'space') { + state = 'at'; + } else if (state === 'at' && param.value === 'at') { + state = 'after'; + } else if (state === 'after' && param.type === 'space') { + return true; + } else if (param.type === 'div') { + break; + } else { + state = 'before'; + } + } + + return false; + } + /** + * Change new direction to old + */ + ; + + _proto.convertDirection = function convertDirection(params) { + if (params.length > 0) { + if (params[0].value === 'to') { + this.fixDirection(params); + } else if (params[0].value.indexOf('deg') !== -1) { + this.fixAngle(params); + } else if (this.isRadial(params)) { + this.fixRadial(params); + } + } + + return params; + } + /** + * Replace `to top left` to `bottom right` + */ + ; + + _proto.fixDirection = function fixDirection(params) { + params.splice(0, 2); + + for (var _iterator3 = params, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) { + var _ref3; + + if (_isArray3) { + if (_i3 >= _iterator3.length) break; + _ref3 = _iterator3[_i3++]; + } else { + _i3 = _iterator3.next(); + if (_i3.done) break; + _ref3 = _i3.value; + } + + var param = _ref3; + + if (param.type === 'div') { + break; + } + + if (param.type === 'word') { + param.value = this.revertDirection(param.value); + } + } + } + /** + * Add 90 degrees + */ + ; + + _proto.fixAngle = function fixAngle(params) { + var first = params[0].value; + first = parseFloat(first); + first = Math.abs(450 - first) % 360; + first = this.roundFloat(first, 3); + params[0].value = first + "deg"; + } + /** + * Fix radial direction syntax + */ + ; + + _proto.fixRadial = function fixRadial(params) { + var first = []; + var second = []; + var a, b, c, i, next; + + for (i = 0; i < params.length - 2; i++) { + a = params[i]; + b = params[i + 1]; + c = params[i + 2]; + + if (a.type === 'space' && b.value === 'at' && c.type === 'space') { + next = i + 3; + break; + } else { + first.push(a); + } + } + + var div; + + for (i = next; i < params.length; i++) { + if (params[i].type === 'div') { + div = params[i]; + break; + } else { + second.push(params[i]); + } + } + + params.splice.apply(params, [0, i].concat(second, [div], first)); + }; + + _proto.revertDirection = function revertDirection(word) { + return this.directions[word.toLowerCase()] || word; + } + /** + * Round float and save digits under dot + */ + ; + + _proto.roundFloat = function roundFloat(_float, digits) { + return parseFloat(_float.toFixed(digits)); + } + /** + * Convert to old webkit syntax + */ + ; + + _proto.oldWebkit = function oldWebkit(node) { + var nodes = node.nodes; + var string = parser.stringify(node.nodes); + + if (this.name !== 'linear-gradient') { + return false; + } + + if (nodes[0] && nodes[0].value.indexOf('deg') !== -1) { + return false; + } + + if (string.indexOf('px') !== -1 || string.indexOf('-corner') !== -1 || string.indexOf('-side') !== -1) { + return false; + } + + var params = [[]]; + + for (var _iterator4 = nodes, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) { + var _ref4; + + if (_isArray4) { + if (_i4 >= _iterator4.length) break; + _ref4 = _iterator4[_i4++]; + } else { + _i4 = _iterator4.next(); + if (_i4.done) break; + _ref4 = _i4.value; + } + + var i = _ref4; + params[params.length - 1].push(i); + + if (i.type === 'div' && i.value === ',') { + params.push([]); + } + } + + this.oldDirection(params); + this.colorStops(params); + node.nodes = []; + + for (var _i5 = 0, _params = params; _i5 < _params.length; _i5++) { + var param = _params[_i5]; + node.nodes = node.nodes.concat(param); + } + + node.nodes.unshift({ + type: 'word', + value: 'linear' + }, this.cloneDiv(node.nodes)); + node.value = '-webkit-gradient'; + return true; + } + /** + * Change direction syntax to old webkit + */ + ; + + _proto.oldDirection = function oldDirection(params) { + var div = this.cloneDiv(params[0]); + + if (params[0][0].value !== 'to') { + return params.unshift([{ + type: 'word', + value: this.oldDirections.bottom + }, div]); + } else { + var words = []; + + for (var _iterator5 = params[0].slice(2), _isArray5 = Array.isArray(_iterator5), _i6 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) { + var _ref5; + + if (_isArray5) { + if (_i6 >= _iterator5.length) break; + _ref5 = _iterator5[_i6++]; + } else { + _i6 = _iterator5.next(); + if (_i6.done) break; + _ref5 = _i6.value; + } + + var node = _ref5; + + if (node.type === 'word') { + words.push(node.value.toLowerCase()); + } + } + + words = words.join(' '); + var old = this.oldDirections[words] || words; + params[0] = [{ + type: 'word', + value: old + }, div]; + return params[0]; + } + } + /** + * Get div token from exists parameters + */ + ; + + _proto.cloneDiv = function cloneDiv(params) { + for (var _iterator6 = params, _isArray6 = Array.isArray(_iterator6), _i7 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) { + var _ref6; + + if (_isArray6) { + if (_i7 >= _iterator6.length) break; + _ref6 = _iterator6[_i7++]; + } else { + _i7 = _iterator6.next(); + if (_i7.done) break; + _ref6 = _i7.value; + } + + var i = _ref6; + + if (i.type === 'div' && i.value === ',') { + return i; + } + } + + return { + type: 'div', + value: ',', + after: ' ' + }; + } + /** + * Change colors syntax to old webkit + */ + ; + + _proto.colorStops = function colorStops(params) { + var result = []; + + for (var i = 0; i < params.length; i++) { + var pos = void 0; + var param = params[i]; + var item = void 0; + + if (i === 0) { + continue; + } + + var color = parser.stringify(param[0]); + + if (param[1] && param[1].type === 'word') { + pos = param[1].value; + } else if (param[2] && param[2].type === 'word') { + pos = param[2].value; + } + + var stop = void 0; + + if (i === 1 && (!pos || pos === '0%')) { + stop = "from(" + color + ")"; + } else if (i === params.length - 1 && (!pos || pos === '100%')) { + stop = "to(" + color + ")"; + } else if (pos) { + stop = "color-stop(" + pos + ", " + color + ")"; + } else { + stop = "color-stop(" + color + ")"; + } + + var div = param[param.length - 1]; + params[i] = [{ + type: 'word', + value: stop + }]; + + if (div.type === 'div' && div.value === ',') { + item = params[i].push(div); + } + + result.push(item); + } + + return result; + } + /** + * Remove old WebKit gradient too + */ + ; + + _proto.old = function old(prefix) { + if (prefix === '-webkit-') { + var type = this.name === 'linear-gradient' ? 'linear' : 'radial'; + var string = '-gradient'; + var regexp = utils.regexp("-webkit-(" + type + "-gradient|gradient\\(\\s*" + type + ")", false); + return new OldValue(this.name, prefix + this.name, string, regexp); + } else { + return _Value.prototype.old.call(this, prefix); + } + } + /** + * Do not add non-webkit prefixes for list-style and object + */ + ; + + _proto.add = function add(decl, prefix) { + var p = decl.prop; + + if (p.indexOf('mask') !== -1) { + if (prefix === '-webkit-' || prefix === '-webkit- old') { + return _Value.prototype.add.call(this, decl, prefix); + } + } else if (p === 'list-style' || p === 'list-style-image' || p === 'content') { + if (prefix === '-webkit-' || prefix === '-webkit- old') { + return _Value.prototype.add.call(this, decl, prefix); + } + } else { + return _Value.prototype.add.call(this, decl, prefix); + } + + return undefined; + }; + + return Gradient; +}(Value); + +_defineProperty(Gradient, "names", ['linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient']); + +module.exports = Gradient;
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