transition.js 13.3 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
'use strict';

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var parser = require('postcss-value-parser');
var vendor = require('postcss').vendor;
var list = require('postcss').list;

var Transition = function () {
    function Transition(prefixes) {
        _classCallCheck(this, Transition);

        Object.defineProperty(this, 'props', {
            enumerable: true,
            writable: true,
            value: ['transition', 'transition-property']
        });

        this.prefixes = prefixes;
    }

    /**
     * Process transition and add prefies for all necessary properties
     */


    Transition.prototype.add = function add(decl, result) {
        var _this = this;

        var prefix = void 0,
            prop = void 0;
        var declPrefixes = this.prefixes.add[decl.prop] && this.prefixes.add[decl.prop].prefixes || [];

        var params = this.parse(decl.value);
        var names = params.map(function (i) {
            return _this.findProp(i);
        });
        var added = [];

        if (names.some(function (i) {
            return i[0] === '-';
        })) {
            return;
        }

        for (var _iterator = params, _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 param = _ref;

            prop = this.findProp(param);
            if (prop[0] === '-') continue;

            var prefixer = this.prefixes.add[prop];
            if (!prefixer || !prefixer.prefixes) continue;

            for (var _iterator3 = prefixer.prefixes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
                if (_isArray3) {
                    if (_i3 >= _iterator3.length) break;
                    prefix = _iterator3[_i3++];
                } else {
                    _i3 = _iterator3.next();
                    if (_i3.done) break;
                    prefix = _i3.value;
                }

                var prefixed = this.prefixes.prefixed(prop, prefix);
                if (prefixed !== '-ms-transform' && names.indexOf(prefixed) === -1) {
                    if (!this.disabled(prop, prefix)) {
                        added.push(this.clone(prop, prefixed, param));
                    }
                }
            }
        }

        params = params.concat(added);
        var value = this.stringify(params);

        var webkitClean = this.stringify(this.cleanFromUnprefixed(params, '-webkit-'));
        if (declPrefixes.indexOf('-webkit-') !== -1) {
            this.cloneBefore(decl, '-webkit-' + decl.prop, webkitClean);
        }
        this.cloneBefore(decl, decl.prop, webkitClean);
        if (declPrefixes.indexOf('-o-') !== -1) {
            var operaClean = this.stringify(this.cleanFromUnprefixed(params, '-o-'));
            this.cloneBefore(decl, '-o-' + decl.prop, operaClean);
        }

        for (var _iterator2 = declPrefixes, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
            if (_isArray2) {
                if (_i2 >= _iterator2.length) break;
                prefix = _iterator2[_i2++];
            } else {
                _i2 = _iterator2.next();
                if (_i2.done) break;
                prefix = _i2.value;
            }

            if (prefix !== '-webkit-' && prefix !== '-o-') {
                var prefixValue = this.stringify(this.cleanOtherPrefixes(params, prefix));
                this.cloneBefore(decl, prefix + decl.prop, prefixValue);
            }
        }

        if (value !== decl.value && !this.already(decl, decl.prop, value)) {
            this.checkForWarning(result, decl);
            decl.cloneBefore();
            decl.value = value;
        }
    };

    /**
     * Find property name
     */


    Transition.prototype.findProp = function findProp(param) {
        var prop = param[0].value;
        if (/^\d/.test(prop)) {
            for (var i = 0; i < param.length; i++) {
                var token = param[i];
                if (i !== 0 && token.type === 'word') {
                    return token.value;
                }
            }
        }
        return prop;
    };

    /**
     * Does we aready have this declaration
     */


    Transition.prototype.already = function already(decl, prop, value) {
        return decl.parent.some(function (i) {
            return i.prop === prop && i.value === value;
        });
    };

    /**
     * Add declaration if it is not exist
     */


    Transition.prototype.cloneBefore = function cloneBefore(decl, prop, value) {
        if (!this.already(decl, prop, value)) {
            decl.cloneBefore({ prop: prop, value: value });
        }
    };

    /**
     * Show transition-property warning
     */


    Transition.prototype.checkForWarning = function checkForWarning(result, decl) {
        if (decl.prop !== 'transition-property') {
            return;
        }

        decl.parent.each(function (i) {
            if (i.type !== 'decl') {
                return undefined;
            }
            if (i.prop.indexOf('transition-') !== 0) {
                return undefined;
            }
            if (i.prop === 'transition-property') {
                return undefined;
            }

            if (list.comma(i.value).length > 1) {
                decl.warn(result, 'Replace transition-property to transition, ' + 'because Autoprefixer could not support ' + 'any cases of transition-property ' + 'and other transition-*');
            }
            return false;
        });
    };

    /**
     * Process transition and remove all unnecessary properties
     */


    Transition.prototype.remove = function remove(decl) {
        var _this2 = this;

        var params = this.parse(decl.value);
        params = params.filter(function (i) {
            var prop = _this2.prefixes.remove[_this2.findProp(i)];
            return !prop || !prop.remove;
        });
        var value = this.stringify(params);

        if (decl.value === value) {
            return;
        }

        if (params.length === 0) {
            decl.remove();
            return;
        }

        var double = decl.parent.some(function (i) {
            return i.prop === decl.prop && i.value === value;
        });
        var smaller = decl.parent.some(function (i) {
            return i !== decl && i.prop === decl.prop && i.value.length > value.length;
        });

        if (double || smaller) {
            decl.remove();
            return;
        }

        decl.value = value;
    };

    /**
     * Parse properties list to array
     */


    Transition.prototype.parse = function parse(value) {
        var ast = parser(value);
        var result = [];
        var param = [];
        for (var _iterator4 = ast.nodes, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
            var _ref2;

            if (_isArray4) {
                if (_i4 >= _iterator4.length) break;
                _ref2 = _iterator4[_i4++];
            } else {
                _i4 = _iterator4.next();
                if (_i4.done) break;
                _ref2 = _i4.value;
            }

            var node = _ref2;

            param.push(node);
            if (node.type === 'div' && node.value === ',') {
                result.push(param);
                param = [];
            }
        }
        result.push(param);
        return result.filter(function (i) {
            return i.length > 0;
        });
    };

    /**
     * Return properties string from array
     */


    Transition.prototype.stringify = function stringify(params) {
        if (params.length === 0) {
            return '';
        }
        var nodes = [];
        for (var _iterator5 = params, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
            var _ref3;

            if (_isArray5) {
                if (_i5 >= _iterator5.length) break;
                _ref3 = _iterator5[_i5++];
            } else {
                _i5 = _iterator5.next();
                if (_i5.done) break;
                _ref3 = _i5.value;
            }

            var param = _ref3;

            if (param[param.length - 1].type !== 'div') {
                param.push(this.div(params));
            }
            nodes = nodes.concat(param);
        }
        if (nodes[0].type === 'div') {
            nodes = nodes.slice(1);
        }
        if (nodes[nodes.length - 1].type === 'div') {
            nodes = nodes.slice(0, +-2 + 1 || undefined);
        }
        return parser.stringify({ nodes: nodes });
    };

    /**
     * Return new param array with different name
     */


    Transition.prototype.clone = function clone(origin, name, param) {
        var result = [];
        var changed = false;
        for (var _iterator6 = param, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
            var _ref4;

            if (_isArray6) {
                if (_i6 >= _iterator6.length) break;
                _ref4 = _iterator6[_i6++];
            } else {
                _i6 = _iterator6.next();
                if (_i6.done) break;
                _ref4 = _i6.value;
            }

            var i = _ref4;

            if (!changed && i.type === 'word' && i.value === origin) {
                result.push({ type: 'word', value: name });
                changed = true;
            } else {
                result.push(i);
            }
        }
        return result;
    };

    /**
     * Find or create seperator
     */


    Transition.prototype.div = function div(params) {
        for (var _iterator7 = params, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
            var _ref5;

            if (_isArray7) {
                if (_i7 >= _iterator7.length) break;
                _ref5 = _iterator7[_i7++];
            } else {
                _i7 = _iterator7.next();
                if (_i7.done) break;
                _ref5 = _i7.value;
            }

            var param = _ref5;

            for (var _iterator8 = param, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
                var _ref6;

                if (_isArray8) {
                    if (_i8 >= _iterator8.length) break;
                    _ref6 = _iterator8[_i8++];
                } else {
                    _i8 = _iterator8.next();
                    if (_i8.done) break;
                    _ref6 = _i8.value;
                }

                var node = _ref6;

                if (node.type === 'div' && node.value === ',') {
                    return node;
                }
            }
        }
        return { type: 'div', value: ',', after: ' ' };
    };

    Transition.prototype.cleanOtherPrefixes = function cleanOtherPrefixes(params, prefix) {
        var _this3 = this;

        return params.filter(function (param) {
            var current = vendor.prefix(_this3.findProp(param));
            return current === '' || current === prefix;
        });
    };

    /**
     * Remove all non-webkit prefixes and unprefixed params if we have prefixed
     */


    Transition.prototype.cleanFromUnprefixed = function cleanFromUnprefixed(params, prefix) {
        var _this4 = this;

        var remove = params.map(function (i) {
            return _this4.findProp(i);
        }).filter(function (i) {
            return i.slice(0, prefix.length) === prefix;
        }).map(function (i) {
            return _this4.prefixes.unprefixed(i);
        });

        var result = [];
        for (var _iterator9 = params, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
            var _ref7;

            if (_isArray9) {
                if (_i9 >= _iterator9.length) break;
                _ref7 = _iterator9[_i9++];
            } else {
                _i9 = _iterator9.next();
                if (_i9.done) break;
                _ref7 = _i9.value;
            }

            var param = _ref7;

            var prop = this.findProp(param);
            var p = vendor.prefix(prop);
            if (remove.indexOf(prop) === -1 && (p === prefix || p === '')) {
                result.push(param);
            }
        }
        return result;
    };

    /**
     * Check property for disabled by option
     */


    Transition.prototype.disabled = function disabled(prop, prefix) {
        var other = ['order', 'justify-content', 'align-self', 'align-content'];
        if (prop.indexOf('flex') !== -1 || other.indexOf(prop) !== -1) {
            if (this.prefixes.options.flexbox === false) {
                return true;
            }

            if (this.prefixes.options.flexbox === 'no-2009') {
                return prefix.indexOf('2009') !== -1;
            }
        }
        return undefined;
    };

    return Transition;
}();

module.exports = Transition;