switch to vuepress

1 files changed, 577 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 00000000..3e41a25c
--- /dev/null
+++ b/node_modules/autoprefixer/lib/hacks/gradient.js
@@ -0,0 +1,577 @@
+'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 _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+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; }
+
+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); }
+
+var OldValue = require('../old-value');
+var Value = require('../value');
+var utils = require('../utils');
+
+var parser = require('postcss-value-parser');
+var range = require('normalize-range');
+
+var isDirection = /top|left|right|bottom/gi;
+
+var Gradient = function (_Value) {
+    _inherits(Gradient, _Value);
+
+    function Gradient() {
+        var _temp, _this, _ret;
+
+        _classCallCheck(this, Gradient);
+
+        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+            args[_key] = arguments[_key];
+        }
+
+        return _ret = (_temp = (_this = _possibleConstructorReturn(this, _Value.call.apply(_Value, [this].concat(args))), _this), Object.defineProperty(_this, 'directions', {
+            enumerable: true,
+            writable: true,
+            value: {
+                top: 'bottom',
+                left: 'right',
+                bottom: 'top',
+                right: 'left'
+            }
+        }), Object.defineProperty(_this, 'oldDirections', {
+            enumerable: true,
+            writable: true,
+            value: {
+                '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'
+            }
+        }), _temp), _possibleConstructorReturn(_this, _ret);
+    }
+
+    // Direction to replace
+
+
+    // Direction to replace
+
+
+    /**
+     * Change degrees for webkit prefix
+     */
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.replaceFirst = function replaceFirst(params) {
+        for (var _len2 = arguments.length, words = 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 };
+            } else {
+                return { type: 'word', value: i };
+            }
+        });
+        return prefix.concat(params.slice(1));
+    };
+
+    /**
+     * Convert angle unit to deg
+     */
+
+
+    Gradient.prototype.normalizeUnit = function normalizeUnit(str, full) {
+        var num = parseFloat(str);
+        var deg = num / full * 360;
+        return deg + 'deg';
+    };
+
+    /**
+     * Normalize angle
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.newDirection = function newDirection(params) {
+        if (params[0].value === 'to') {
+            return params;
+        }
+        isDirection.lastIndex = 0; // reset search index of global regexp
+        if (!isDirection.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
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.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`
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.fixRadial = function fixRadial(params) {
+        var first = [];
+        var second = [];
+        var a = void 0,
+            b = void 0,
+            c = void 0,
+            i = void 0,
+            next = void 0;
+
+        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 = void 0;
+        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));
+    };
+
+    Gradient.prototype.revertDirection = function revertDirection(word) {
+        return this.directions[word.toLowerCase()] || word;
+    };
+
+    /**
+     * Round float and save digits under dot
+     */
+
+
+    Gradient.prototype.roundFloat = function roundFloat(float, digits) {
+        return parseFloat(float.toFixed(digits));
+    };
+
+    /**
+     * Convert to old webkit syntax
+     */
+
+
+    Gradient.prototype.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 _iterator5 = params, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
+            var _ref5;
+
+            if (_isArray5) {
+                if (_i5 >= _iterator5.length) break;
+                _ref5 = _iterator5[_i5++];
+            } else {
+                _i5 = _iterator5.next();
+                if (_i5.done) break;
+                _ref5 = _i5.value;
+            }
+
+            var param = _ref5;
+
+            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
+     */
+
+
+    Gradient.prototype.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 _iterator6 = params[0].slice(2), _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
+                var _ref6;
+
+                if (_isArray6) {
+                    if (_i6 >= _iterator6.length) break;
+                    _ref6 = _iterator6[_i6++];
+                } else {
+                    _i6 = _iterator6.next();
+                    if (_i6.done) break;
+                    _ref6 = _i6.value;
+                }
+
+                var node = _ref6;
+
+                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
+     */
+
+
+    Gradient.prototype.cloneDiv = function cloneDiv(params) {
+        for (var _iterator7 = params, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
+            var _ref7;
+
+            if (_isArray7) {
+                if (_i7 >= _iterator7.length) break;
+                _ref7 = _iterator7[_i7++];
+            } else {
+                _i7 = _iterator7.next();
+                if (_i7.done) break;
+                _ref7 = _i7.value;
+            }
+
+            var i = _ref7;
+
+            if (i.type === 'div' && i.value === ',') {
+                return i;
+            }
+        }
+        return { type: 'div', value: ',', after: ' ' };
+    };
+
+    /**
+     * Change colors syntax to old webkit
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.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
+     */
+
+
+    Gradient.prototype.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);
+
+Object.defineProperty(Gradient, 'names', {
+    enumerable: true,
+    writable: true,
+    value: ['linear-gradient', 'repeating-linear-gradient', 'radial-gradient', 'repeating-radial-gradient']
+});
+
+
+module.exports = Gradient;
\ No newline at end of file