source: trip-planner-front/node_modules/autoprefixer/lib/hacks/grid-utils.js@ bdd6491

Last change on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1"use strict";
2
3function _createForOfIteratorHelperLoose(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; return function () { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } it = o[Symbol.iterator](); return it.next.bind(it); }
4
5function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
6
7function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }
8
9var parser = require('postcss-value-parser');
10
11var list = require('postcss').list;
12
13var uniq = require('../utils').uniq;
14
15var escapeRegexp = require('../utils').escapeRegexp;
16
17var splitSelector = require('../utils').splitSelector;
18
19function convert(value) {
20 if (value && value.length === 2 && value[0] === 'span' && parseInt(value[1], 10) > 0) {
21 return [false, parseInt(value[1], 10)];
22 }
23
24 if (value && value.length === 1 && parseInt(value[0], 10) > 0) {
25 return [parseInt(value[0], 10), false];
26 }
27
28 return [false, false];
29}
30
31function translate(values, startIndex, endIndex) {
32 var startValue = values[startIndex];
33 var endValue = values[endIndex];
34
35 if (!startValue) {
36 return [false, false];
37 }
38
39 var _convert = convert(startValue),
40 start = _convert[0],
41 spanStart = _convert[1];
42
43 var _convert2 = convert(endValue),
44 end = _convert2[0],
45 spanEnd = _convert2[1];
46
47 if (start && !endValue) {
48 return [start, false];
49 }
50
51 if (spanStart && end) {
52 return [end - spanStart, spanStart];
53 }
54
55 if (start && spanEnd) {
56 return [start, spanEnd];
57 }
58
59 if (start && end) {
60 return [start, end - start];
61 }
62
63 return [false, false];
64}
65
66function parse(decl) {
67 var node = parser(decl.value);
68 var values = [];
69 var current = 0;
70 values[current] = [];
71
72 for (var _iterator = _createForOfIteratorHelperLoose(node.nodes), _step; !(_step = _iterator()).done;) {
73 var i = _step.value;
74
75 if (i.type === 'div') {
76 current += 1;
77 values[current] = [];
78 } else if (i.type === 'word') {
79 values[current].push(i.value);
80 }
81 }
82
83 return values;
84}
85
86function insertDecl(decl, prop, value) {
87 if (value && !decl.parent.some(function (i) {
88 return i.prop === "-ms-" + prop;
89 })) {
90 decl.cloneBefore({
91 prop: "-ms-" + prop,
92 value: value.toString()
93 });
94 }
95} // Track transforms
96
97
98function prefixTrackProp(_ref) {
99 var prop = _ref.prop,
100 prefix = _ref.prefix;
101 return prefix + prop.replace('template-', '');
102}
103
104function transformRepeat(_ref2, _ref3) {
105 var nodes = _ref2.nodes;
106 var gap = _ref3.gap;
107
108 var _nodes$reduce = nodes.reduce(function (result, node) {
109 if (node.type === 'div' && node.value === ',') {
110 result.key = 'size';
111 } else {
112 result[result.key].push(parser.stringify(node));
113 }
114
115 return result;
116 }, {
117 key: 'count',
118 size: [],
119 count: []
120 }),
121 count = _nodes$reduce.count,
122 size = _nodes$reduce.size; // insert gap values
123
124
125 if (gap) {
126 var _ret = function () {
127 size = size.filter(function (i) {
128 return i.trim();
129 });
130 var val = [];
131
132 var _loop = function _loop(i) {
133 size.forEach(function (item, index) {
134 if (index > 0 || i > 1) {
135 val.push(gap);
136 }
137
138 val.push(item);
139 });
140 };
141
142 for (var i = 1; i <= count; i++) {
143 _loop(i);
144 }
145
146 return {
147 v: val.join(' ')
148 };
149 }();
150
151 if (typeof _ret === "object") return _ret.v;
152 }
153
154 return "(" + size.join('') + ")[" + count.join('') + "]";
155}
156
157function prefixTrackValue(_ref4) {
158 var value = _ref4.value,
159 gap = _ref4.gap;
160 var result = parser(value).nodes.reduce(function (nodes, node) {
161 if (node.type === 'function' && node.value === 'repeat') {
162 return nodes.concat({
163 type: 'word',
164 value: transformRepeat(node, {
165 gap: gap
166 })
167 });
168 }
169
170 if (gap && node.type === 'space') {
171 return nodes.concat({
172 type: 'space',
173 value: ' '
174 }, {
175 type: 'word',
176 value: gap
177 }, node);
178 }
179
180 return nodes.concat(node);
181 }, []);
182 return parser.stringify(result);
183} // Parse grid-template-areas
184
185
186var DOTS = /^\.+$/;
187
188function track(start, end) {
189 return {
190 start: start,
191 end: end,
192 span: end - start
193 };
194}
195
196function getColumns(line) {
197 return line.trim().split(/\s+/g);
198}
199
200function parseGridAreas(_ref5) {
201 var rows = _ref5.rows,
202 gap = _ref5.gap;
203 return rows.reduce(function (areas, line, rowIndex) {
204 if (gap.row) rowIndex *= 2;
205 if (line.trim() === '') return areas;
206 getColumns(line).forEach(function (area, columnIndex) {
207 if (DOTS.test(area)) return;
208 if (gap.column) columnIndex *= 2;
209
210 if (typeof areas[area] === 'undefined') {
211 areas[area] = {
212 column: track(columnIndex + 1, columnIndex + 2),
213 row: track(rowIndex + 1, rowIndex + 2)
214 };
215 } else {
216 var _areas$area = areas[area],
217 column = _areas$area.column,
218 row = _areas$area.row;
219 column.start = Math.min(column.start, columnIndex + 1);
220 column.end = Math.max(column.end, columnIndex + 2);
221 column.span = column.end - column.start;
222 row.start = Math.min(row.start, rowIndex + 1);
223 row.end = Math.max(row.end, rowIndex + 2);
224 row.span = row.end - row.start;
225 }
226 });
227 return areas;
228 }, {});
229} // Parse grid-template
230
231
232function testTrack(node) {
233 return node.type === 'word' && /^\[.+]$/.test(node.value);
234}
235
236function verifyRowSize(result) {
237 if (result.areas.length > result.rows.length) {
238 result.rows.push('auto');
239 }
240
241 return result;
242}
243
244function parseTemplate(_ref6) {
245 var decl = _ref6.decl,
246 gap = _ref6.gap;
247 var gridTemplate = parser(decl.value).nodes.reduce(function (result, node) {
248 var type = node.type,
249 value = node.value;
250 if (testTrack(node) || type === 'space') return result; // area
251
252 if (type === 'string') {
253 result = verifyRowSize(result);
254 result.areas.push(value);
255 } // values and function
256
257
258 if (type === 'word' || type === 'function') {
259 result[result.key].push(parser.stringify(node));
260 } // divider(/)
261
262
263 if (type === 'div' && value === '/') {
264 result.key = 'columns';
265 result = verifyRowSize(result);
266 }
267
268 return result;
269 }, {
270 key: 'rows',
271 columns: [],
272 rows: [],
273 areas: []
274 });
275 return {
276 areas: parseGridAreas({
277 rows: gridTemplate.areas,
278 gap: gap
279 }),
280 columns: prefixTrackValue({
281 value: gridTemplate.columns.join(' '),
282 gap: gap.column
283 }),
284 rows: prefixTrackValue({
285 value: gridTemplate.rows.join(' '),
286 gap: gap.row
287 })
288 };
289} // Insert parsed grid areas
290
291/**
292 * Get an array of -ms- prefixed props and values
293 * @param {Object} [area] area object with column and row data
294 * @param {Boolean} [addRowSpan] should we add grid-column-row value?
295 * @param {Boolean} [addColumnSpan] should we add grid-column-span value?
296 * @return {Array<Object>}
297 */
298
299
300function getMSDecls(area, addRowSpan, addColumnSpan) {
301 if (addRowSpan === void 0) {
302 addRowSpan = false;
303 }
304
305 if (addColumnSpan === void 0) {
306 addColumnSpan = false;
307 }
308
309 return [].concat({
310 prop: '-ms-grid-row',
311 value: String(area.row.start)
312 }, area.row.span > 1 || addRowSpan ? {
313 prop: '-ms-grid-row-span',
314 value: String(area.row.span)
315 } : [], {
316 prop: '-ms-grid-column',
317 value: String(area.column.start)
318 }, area.column.span > 1 || addColumnSpan ? {
319 prop: '-ms-grid-column-span',
320 value: String(area.column.span)
321 } : []);
322}
323
324function getParentMedia(parent) {
325 if (parent.type === 'atrule' && parent.name === 'media') {
326 return parent;
327 }
328
329 if (!parent.parent) {
330 return false;
331 }
332
333 return getParentMedia(parent.parent);
334}
335/**
336 * change selectors for rules with duplicate grid-areas.
337 * @param {Array<Rule>} rules
338 * @param {Array<String>} templateSelectors
339 * @return {Array<Rule>} rules with changed selectors
340 */
341
342
343function changeDuplicateAreaSelectors(ruleSelectors, templateSelectors) {
344 ruleSelectors = ruleSelectors.map(function (selector) {
345 var selectorBySpace = list.space(selector);
346 var selectorByComma = list.comma(selector);
347
348 if (selectorBySpace.length > selectorByComma.length) {
349 selector = selectorBySpace.slice(-1).join('');
350 }
351
352 return selector;
353 });
354 return ruleSelectors.map(function (ruleSelector) {
355 var newSelector = templateSelectors.map(function (tplSelector, index) {
356 var space = index === 0 ? '' : ' ';
357 return "" + space + tplSelector + " > " + ruleSelector;
358 });
359 return newSelector;
360 });
361}
362/**
363 * check if selector of rules are equal
364 * @param {Rule} ruleA
365 * @param {Rule} ruleB
366 * @return {Boolean}
367 */
368
369
370function selectorsEqual(ruleA, ruleB) {
371 return ruleA.selectors.some(function (sel) {
372 return ruleB.selectors.some(function (s) {
373 return s === sel;
374 });
375 });
376}
377/**
378 * Parse data from all grid-template(-areas) declarations
379 * @param {Root} css css root
380 * @return {Object} parsed data
381 */
382
383
384function parseGridTemplatesData(css) {
385 var parsed = []; // we walk through every grid-template(-areas) declaration and store
386 // data with the same area names inside the item
387
388 css.walkDecls(/grid-template(-areas)?$/, function (d) {
389 var rule = d.parent;
390 var media = getParentMedia(rule);
391 var gap = getGridGap(d);
392 var inheritedGap = inheritGridGap(d, gap);
393
394 var _parseTemplate = parseTemplate({
395 decl: d,
396 gap: inheritedGap || gap
397 }),
398 areas = _parseTemplate.areas;
399
400 var areaNames = Object.keys(areas); // skip node if it doesn't have areas
401
402 if (areaNames.length === 0) {
403 return true;
404 } // check parsed array for item that include the same area names
405 // return index of that item
406
407
408 var index = parsed.reduce(function (acc, _ref7, idx) {
409 var allAreas = _ref7.allAreas;
410 var hasAreas = allAreas && areaNames.some(function (area) {
411 return allAreas.includes(area);
412 });
413 return hasAreas ? idx : acc;
414 }, null);
415
416 if (index !== null) {
417 // index is found, add the grid-template data to that item
418 var _parsed$index = parsed[index],
419 allAreas = _parsed$index.allAreas,
420 rules = _parsed$index.rules; // check if rule has no duplicate area names
421
422 var hasNoDuplicates = rules.some(function (r) {
423 return r.hasDuplicates === false && selectorsEqual(r, rule);
424 });
425 var duplicatesFound = false; // check need to gather all duplicate area names
426
427 var duplicateAreaNames = rules.reduce(function (acc, r) {
428 if (!r.params && selectorsEqual(r, rule)) {
429 duplicatesFound = true;
430 return r.duplicateAreaNames;
431 }
432
433 if (!duplicatesFound) {
434 areaNames.forEach(function (name) {
435 if (r.areas[name]) {
436 acc.push(name);
437 }
438 });
439 }
440
441 return uniq(acc);
442 }, []); // update grid-row/column-span values for areas with duplicate
443 // area names. @see #1084 and #1146
444
445 rules.forEach(function (r) {
446 areaNames.forEach(function (name) {
447 var area = r.areas[name];
448
449 if (area && area.row.span !== areas[name].row.span) {
450 areas[name].row.updateSpan = true;
451 }
452
453 if (area && area.column.span !== areas[name].column.span) {
454 areas[name].column.updateSpan = true;
455 }
456 });
457 });
458 parsed[index].allAreas = uniq([].concat(allAreas, areaNames));
459 parsed[index].rules.push({
460 hasDuplicates: !hasNoDuplicates,
461 params: media.params,
462 selectors: rule.selectors,
463 node: rule,
464 duplicateAreaNames: duplicateAreaNames,
465 areas: areas
466 });
467 } else {
468 // index is NOT found, push the new item to the parsed array
469 parsed.push({
470 allAreas: areaNames,
471 areasCount: 0,
472 rules: [{
473 hasDuplicates: false,
474 duplicateRules: [],
475 params: media.params,
476 selectors: rule.selectors,
477 node: rule,
478 duplicateAreaNames: [],
479 areas: areas
480 }]
481 });
482 }
483
484 return undefined;
485 });
486 return parsed;
487}
488/**
489 * insert prefixed grid-area declarations
490 * @param {Root} css css root
491 * @param {Function} isDisabled check if the rule is disabled
492 * @return {void}
493 */
494
495
496function insertAreas(css, isDisabled) {
497 // parse grid-template declarations
498 var gridTemplatesData = parseGridTemplatesData(css); // return undefined if no declarations found
499
500 if (gridTemplatesData.length === 0) {
501 return undefined;
502 } // we need to store the rules that we will insert later
503
504
505 var rulesToInsert = {};
506 css.walkDecls('grid-area', function (gridArea) {
507 var gridAreaRule = gridArea.parent;
508 var hasPrefixedRow = gridAreaRule.first.prop === '-ms-grid-row';
509 var gridAreaMedia = getParentMedia(gridAreaRule);
510
511 if (isDisabled(gridArea)) {
512 return undefined;
513 }
514
515 var gridAreaRuleIndex = gridAreaMedia ? css.index(gridAreaMedia) : css.index(gridAreaRule);
516 var value = gridArea.value; // found the data that matches grid-area identifier
517
518 var data = gridTemplatesData.filter(function (d) {
519 return d.allAreas.includes(value);
520 })[0];
521
522 if (!data) {
523 return true;
524 }
525
526 var lastArea = data.allAreas[data.allAreas.length - 1];
527 var selectorBySpace = list.space(gridAreaRule.selector);
528 var selectorByComma = list.comma(gridAreaRule.selector);
529 var selectorIsComplex = selectorBySpace.length > 1 && selectorBySpace.length > selectorByComma.length; // prevent doubling of prefixes
530
531 if (hasPrefixedRow) {
532 return false;
533 } // create the empty object with the key as the last area name
534 // e.g if we have templates with "a b c" values, "c" will be the last area
535
536
537 if (!rulesToInsert[lastArea]) {
538 rulesToInsert[lastArea] = {};
539 }
540
541 var lastRuleIsSet = false; // walk through every grid-template rule data
542
543 for (var _iterator2 = _createForOfIteratorHelperLoose(data.rules), _step2; !(_step2 = _iterator2()).done;) {
544 var rule = _step2.value;
545 var area = rule.areas[value];
546 var hasDuplicateName = rule.duplicateAreaNames.includes(value); // if we can't find the area name, update lastRule and continue
547
548 if (!area) {
549 var lastRuleIndex = css.index(rulesToInsert[lastArea].lastRule);
550
551 if (gridAreaRuleIndex > lastRuleIndex) {
552 rulesToInsert[lastArea].lastRule = gridAreaMedia || gridAreaRule;
553 }
554
555 continue;
556 } // for grid-templates inside media rule we need to create empty
557 // array to push prefixed grid-area rules later
558
559
560 if (rule.params && !rulesToInsert[lastArea][rule.params]) {
561 rulesToInsert[lastArea][rule.params] = [];
562 }
563
564 if ((!rule.hasDuplicates || !hasDuplicateName) && !rule.params) {
565 // grid-template has no duplicates and not inside media rule
566 getMSDecls(area, false, false).reverse().forEach(function (i) {
567 return gridAreaRule.prepend(Object.assign(i, {
568 raws: {
569 between: gridArea.raws.between
570 }
571 }));
572 });
573 rulesToInsert[lastArea].lastRule = gridAreaRule;
574 lastRuleIsSet = true;
575 } else if (rule.hasDuplicates && !rule.params && !selectorIsComplex) {
576 (function () {
577 // grid-template has duplicates and not inside media rule
578 var cloned = gridAreaRule.clone();
579 cloned.removeAll();
580 getMSDecls(area, area.row.updateSpan, area.column.updateSpan).reverse().forEach(function (i) {
581 return cloned.prepend(Object.assign(i, {
582 raws: {
583 between: gridArea.raws.between
584 }
585 }));
586 });
587 cloned.selectors = changeDuplicateAreaSelectors(cloned.selectors, rule.selectors);
588
589 if (rulesToInsert[lastArea].lastRule) {
590 rulesToInsert[lastArea].lastRule.after(cloned);
591 }
592
593 rulesToInsert[lastArea].lastRule = cloned;
594 lastRuleIsSet = true;
595 })();
596 } else if (rule.hasDuplicates && !rule.params && selectorIsComplex && gridAreaRule.selector.includes(rule.selectors[0])) {
597 // grid-template has duplicates and not inside media rule
598 // and the selector is complex
599 gridAreaRule.walkDecls(/-ms-grid-(row|column)/, function (d) {
600 return d.remove();
601 });
602 getMSDecls(area, area.row.updateSpan, area.column.updateSpan).reverse().forEach(function (i) {
603 return gridAreaRule.prepend(Object.assign(i, {
604 raws: {
605 between: gridArea.raws.between
606 }
607 }));
608 });
609 } else if (rule.params) {
610 (function () {
611 // grid-template is inside media rule
612 // if we're inside media rule, we need to store prefixed rules
613 // inside rulesToInsert object to be able to preserve the order of media
614 // rules and merge them easily
615 var cloned = gridAreaRule.clone();
616 cloned.removeAll();
617 getMSDecls(area, area.row.updateSpan, area.column.updateSpan).reverse().forEach(function (i) {
618 return cloned.prepend(Object.assign(i, {
619 raws: {
620 between: gridArea.raws.between
621 }
622 }));
623 });
624
625 if (rule.hasDuplicates && hasDuplicateName) {
626 cloned.selectors = changeDuplicateAreaSelectors(cloned.selectors, rule.selectors);
627 }
628
629 cloned.raws = rule.node.raws;
630
631 if (css.index(rule.node.parent) > gridAreaRuleIndex) {
632 // append the prefixed rules right inside media rule
633 // with grid-template
634 rule.node.parent.append(cloned);
635 } else {
636 // store the rule to insert later
637 rulesToInsert[lastArea][rule.params].push(cloned);
638 } // set new rule as last rule ONLY if we didn't set lastRule for
639 // this grid-area before
640
641
642 if (!lastRuleIsSet) {
643 rulesToInsert[lastArea].lastRule = gridAreaMedia || gridAreaRule;
644 }
645 })();
646 }
647 }
648
649 return undefined;
650 }); // append stored rules inside the media rules
651
652 Object.keys(rulesToInsert).forEach(function (area) {
653 var data = rulesToInsert[area];
654 var lastRule = data.lastRule;
655 Object.keys(data).reverse().filter(function (p) {
656 return p !== 'lastRule';
657 }).forEach(function (params) {
658 if (data[params].length > 0 && lastRule) {
659 lastRule.after({
660 name: 'media',
661 params: params
662 });
663 lastRule.next().append(data[params]);
664 }
665 });
666 });
667 return undefined;
668}
669/**
670 * Warn user if grid area identifiers are not found
671 * @param {Object} areas
672 * @param {Declaration} decl
673 * @param {Result} result
674 * @return {void}
675 */
676
677
678function warnMissedAreas(areas, decl, result) {
679 var missed = Object.keys(areas);
680 decl.root().walkDecls('grid-area', function (gridArea) {
681 missed = missed.filter(function (e) {
682 return e !== gridArea.value;
683 });
684 });
685
686 if (missed.length > 0) {
687 decl.warn(result, 'Can not find grid areas: ' + missed.join(', '));
688 }
689
690 return undefined;
691}
692/**
693 * compare selectors with grid-area rule and grid-template rule
694 * show warning if grid-template selector is not found
695 * (this function used for grid-area rule)
696 * @param {Declaration} decl
697 * @param {Result} result
698 * @return {void}
699 */
700
701
702function warnTemplateSelectorNotFound(decl, result) {
703 var rule = decl.parent;
704 var root = decl.root();
705 var duplicatesFound = false; // slice selector array. Remove the last part (for comparison)
706
707 var slicedSelectorArr = list.space(rule.selector).filter(function (str) {
708 return str !== '>';
709 }).slice(0, -1); // we need to compare only if selector is complex.
710 // e.g '.grid-cell' is simple, but '.parent > .grid-cell' is complex
711
712 if (slicedSelectorArr.length > 0) {
713 var gridTemplateFound = false;
714 var foundAreaSelector = null;
715 root.walkDecls(/grid-template(-areas)?$/, function (d) {
716 var parent = d.parent;
717 var templateSelectors = parent.selectors;
718
719 var _parseTemplate2 = parseTemplate({
720 decl: d,
721 gap: getGridGap(d)
722 }),
723 areas = _parseTemplate2.areas;
724
725 var hasArea = areas[decl.value]; // find the the matching selectors
726
727 for (var _iterator3 = _createForOfIteratorHelperLoose(templateSelectors), _step3; !(_step3 = _iterator3()).done;) {
728 var tplSelector = _step3.value;
729
730 if (gridTemplateFound) {
731 break;
732 }
733
734 var tplSelectorArr = list.space(tplSelector).filter(function (str) {
735 return str !== '>';
736 });
737 gridTemplateFound = tplSelectorArr.every(function (item, idx) {
738 return item === slicedSelectorArr[idx];
739 });
740 }
741
742 if (gridTemplateFound || !hasArea) {
743 return true;
744 }
745
746 if (!foundAreaSelector) {
747 foundAreaSelector = parent.selector;
748 } // if we found the duplicate area with different selector
749
750
751 if (foundAreaSelector && foundAreaSelector !== parent.selector) {
752 duplicatesFound = true;
753 }
754
755 return undefined;
756 }); // warn user if we didn't find template
757
758 if (!gridTemplateFound && duplicatesFound) {
759 decl.warn(result, 'Autoprefixer cannot find a grid-template ' + ("containing the duplicate grid-area \"" + decl.value + "\" ") + ("with full selector matching: " + slicedSelectorArr.join(' ')));
760 }
761 }
762}
763/**
764 * warn user if both grid-area and grid-(row|column)
765 * declarations are present in the same rule
766 * @param {Declaration} decl
767 * @param {Result} result
768 * @return {void}
769 */
770
771
772function warnIfGridRowColumnExists(decl, result) {
773 var rule = decl.parent;
774 var decls = [];
775 rule.walkDecls(/^grid-(row|column)/, function (d) {
776 if (!d.prop.endsWith('-end') && !d.value.startsWith('span')) {
777 decls.push(d);
778 }
779 });
780
781 if (decls.length > 0) {
782 decls.forEach(function (d) {
783 d.warn(result, 'You already have a grid-area declaration present in the rule. ' + ("You should use either grid-area or " + d.prop + ", not both"));
784 });
785 }
786
787 return undefined;
788} // Gap utils
789
790
791function getGridGap(decl) {
792 var gap = {}; // try to find gap
793
794 var testGap = /^(grid-)?((row|column)-)?gap$/;
795 decl.parent.walkDecls(testGap, function (_ref8) {
796 var prop = _ref8.prop,
797 value = _ref8.value;
798
799 if (/^(grid-)?gap$/.test(prop)) {
800 var _parser$nodes = parser(value).nodes,
801 row = _parser$nodes[0],
802 column = _parser$nodes[2];
803 gap.row = row && parser.stringify(row);
804 gap.column = column ? parser.stringify(column) : gap.row;
805 }
806
807 if (/^(grid-)?row-gap$/.test(prop)) gap.row = value;
808 if (/^(grid-)?column-gap$/.test(prop)) gap.column = value;
809 });
810 return gap;
811}
812/**
813 * parse media parameters (for example 'min-width: 500px')
814 * @param {String} params parameter to parse
815 * @return {}
816 */
817
818
819function parseMediaParams(params) {
820 if (!params) {
821 return false;
822 }
823
824 var parsed = parser(params);
825 var prop;
826 var value;
827 parsed.walk(function (node) {
828 if (node.type === 'word' && /min|max/g.test(node.value)) {
829 prop = node.value;
830 } else if (node.value.includes('px')) {
831 value = parseInt(node.value.replace(/\D/g, ''));
832 }
833 });
834 return [prop, value];
835}
836/**
837 * Compare the selectors and decide if we
838 * need to inherit gap from compared selector or not.
839 * @type {String} selA
840 * @type {String} selB
841 * @return {Boolean}
842 */
843
844
845function shouldInheritGap(selA, selB) {
846 var result; // get arrays of selector split in 3-deep array
847
848 var splitSelectorArrA = splitSelector(selA);
849 var splitSelectorArrB = splitSelector(selB);
850
851 if (splitSelectorArrA[0].length < splitSelectorArrB[0].length) {
852 // abort if selectorA has lower descendant specificity then selectorB
853 // (e.g '.grid' and '.hello .world .grid')
854 return false;
855 } else if (splitSelectorArrA[0].length > splitSelectorArrB[0].length) {
856 // if selectorA has higher descendant specificity then selectorB
857 // (e.g '.foo .bar .grid' and '.grid')
858 var idx = splitSelectorArrA[0].reduce(function (res, _ref9, index) {
859 var item = _ref9[0];
860 var firstSelectorPart = splitSelectorArrB[0][0][0];
861
862 if (item === firstSelectorPart) {
863 return index;
864 }
865
866 return false;
867 }, false);
868
869 if (idx) {
870 result = splitSelectorArrB[0].every(function (arr, index) {
871 return arr.every(function (part, innerIndex) {
872 return (// because selectorA has more space elements, we need to slice
873 // selectorA array by 'idx' number to compare them
874 splitSelectorArrA[0].slice(idx)[index][innerIndex] === part
875 );
876 });
877 });
878 }
879 } else {
880 // if selectorA has the same descendant specificity as selectorB
881 // this condition covers cases such as: '.grid.foo.bar' and '.grid'
882 result = splitSelectorArrB.some(function (byCommaArr) {
883 return byCommaArr.every(function (bySpaceArr, index) {
884 return bySpaceArr.every(function (part, innerIndex) {
885 return splitSelectorArrA[0][index][innerIndex] === part;
886 });
887 });
888 });
889 }
890
891 return result;
892}
893/**
894 * inherit grid gap values from the closest rule above
895 * with the same selector
896 * @param {Declaration} decl
897 * @param {Object} gap gap values
898 * @return {Object | Boolean} return gap values or false (if not found)
899 */
900
901
902function inheritGridGap(decl, gap) {
903 var rule = decl.parent;
904 var mediaRule = getParentMedia(rule);
905 var root = rule.root(); // get an array of selector split in 3-deep array
906
907 var splitSelectorArr = splitSelector(rule.selector); // abort if the rule already has gaps
908
909 if (Object.keys(gap).length > 0) {
910 return false;
911 } // e.g ['min-width']
912
913
914 var _parseMediaParams = parseMediaParams(mediaRule.params),
915 prop = _parseMediaParams[0];
916
917 var lastBySpace = splitSelectorArr[0]; // get escaped value from the selector
918 // if we have '.grid-2.foo.bar' selector, will be '\.grid\-2'
919
920 var escaped = escapeRegexp(lastBySpace[lastBySpace.length - 1][0]);
921 var regexp = new RegExp("(" + escaped + "$)|(" + escaped + "[,.])"); // find the closest rule with the same selector
922
923 var closestRuleGap;
924 root.walkRules(regexp, function (r) {
925 var gridGap; // abort if are checking the same rule
926
927 if (rule.toString() === r.toString()) {
928 return false;
929 } // find grid-gap values
930
931
932 r.walkDecls('grid-gap', function (d) {
933 return gridGap = getGridGap(d);
934 }); // skip rule without gaps
935
936 if (!gridGap || Object.keys(gridGap).length === 0) {
937 return true;
938 } // skip rules that should not be inherited from
939
940
941 if (!shouldInheritGap(rule.selector, r.selector)) {
942 return true;
943 }
944
945 var media = getParentMedia(r);
946
947 if (media) {
948 // if we are inside media, we need to check that media props match
949 // e.g ('min-width' === 'min-width')
950 var propToCompare = parseMediaParams(media.params)[0];
951
952 if (propToCompare === prop) {
953 closestRuleGap = gridGap;
954 return true;
955 }
956 } else {
957 closestRuleGap = gridGap;
958 return true;
959 }
960
961 return undefined;
962 }); // if we find the closest gap object
963
964 if (closestRuleGap && Object.keys(closestRuleGap).length > 0) {
965 return closestRuleGap;
966 }
967
968 return false;
969}
970
971function warnGridGap(_ref10) {
972 var gap = _ref10.gap,
973 hasColumns = _ref10.hasColumns,
974 decl = _ref10.decl,
975 result = _ref10.result;
976 var hasBothGaps = gap.row && gap.column;
977
978 if (!hasColumns && (hasBothGaps || gap.column && !gap.row)) {
979 delete gap.column;
980 decl.warn(result, 'Can not implement grid-gap without grid-template-columns');
981 }
982}
983/**
984 * normalize the grid-template-rows/columns values
985 * @param {String} str grid-template-rows/columns value
986 * @return {Array} normalized array with values
987 * @example
988 * let normalized = normalizeRowColumn('1fr repeat(2, 20px 50px) 1fr')
989 * normalized // <= ['1fr', '20px', '50px', '20px', '50px', '1fr']
990 */
991
992
993function normalizeRowColumn(str) {
994 var normalized = parser(str).nodes.reduce(function (result, node) {
995 if (node.type === 'function' && node.value === 'repeat') {
996 var key = 'count';
997
998 var _node$nodes$reduce = node.nodes.reduce(function (acc, n) {
999 if (n.type === 'word' && key === 'count') {
1000 acc[0] = Math.abs(parseInt(n.value));
1001 return acc;
1002 }
1003
1004 if (n.type === 'div' && n.value === ',') {
1005 key = 'value';
1006 return acc;
1007 }
1008
1009 if (key === 'value') {
1010 acc[1] += parser.stringify(n);
1011 }
1012
1013 return acc;
1014 }, [0, '']),
1015 count = _node$nodes$reduce[0],
1016 value = _node$nodes$reduce[1];
1017
1018 if (count) {
1019 for (var i = 0; i < count; i++) {
1020 result.push(value);
1021 }
1022 }
1023
1024 return result;
1025 }
1026
1027 if (node.type === 'space') {
1028 return result;
1029 }
1030
1031 return result.concat(parser.stringify(node));
1032 }, []);
1033 return normalized;
1034}
1035/**
1036 * Autoplace grid items
1037 * @param {Declaration} decl
1038 * @param {Result} result
1039 * @param {Object} gap gap values
1040 * @param {String} autoflowValue grid-auto-flow value
1041 * @return {void}
1042 * @see https://github.com/postcss/autoprefixer/issues/1148
1043 */
1044
1045
1046function autoplaceGridItems(decl, result, gap, autoflowValue) {
1047 if (autoflowValue === void 0) {
1048 autoflowValue = 'row';
1049 }
1050
1051 var parent = decl.parent;
1052 var rowDecl = parent.nodes.find(function (i) {
1053 return i.prop === 'grid-template-rows';
1054 });
1055 var rows = normalizeRowColumn(rowDecl.value);
1056 var columns = normalizeRowColumn(decl.value); // Build array of area names with dummy values. If we have 3 columns and
1057 // 2 rows, filledRows will be equal to ['1 2 3', '4 5 6']
1058
1059 var filledRows = rows.map(function (_, rowIndex) {
1060 return Array.from({
1061 length: columns.length
1062 }, function (v, k) {
1063 return k + rowIndex * columns.length + 1;
1064 }).join(' ');
1065 });
1066 var areas = parseGridAreas({
1067 rows: filledRows,
1068 gap: gap
1069 });
1070 var keys = Object.keys(areas);
1071 var items = keys.map(function (i) {
1072 return areas[i];
1073 }); // Change the order of cells if grid-auto-flow value is 'column'
1074
1075 if (autoflowValue.includes('column')) {
1076 items = items.sort(function (a, b) {
1077 return a.column.start - b.column.start;
1078 });
1079 } // Insert new rules
1080
1081
1082 items.reverse().forEach(function (item, index) {
1083 var column = item.column,
1084 row = item.row;
1085 var nodeSelector = parent.selectors.map(function (sel) {
1086 return sel + (" > *:nth-child(" + (keys.length - index) + ")");
1087 }).join(', '); // create new rule
1088
1089 var node = parent.clone().removeAll(); // change rule selector
1090
1091 node.selector = nodeSelector; // insert prefixed row/column values
1092
1093 node.append({
1094 prop: '-ms-grid-row',
1095 value: row.start
1096 });
1097 node.append({
1098 prop: '-ms-grid-column',
1099 value: column.start
1100 }); // insert rule
1101
1102 parent.after(node);
1103 });
1104 return undefined;
1105}
1106
1107module.exports = {
1108 parse: parse,
1109 translate: translate,
1110 parseTemplate: parseTemplate,
1111 parseGridAreas: parseGridAreas,
1112 warnMissedAreas: warnMissedAreas,
1113 insertAreas: insertAreas,
1114 insertDecl: insertDecl,
1115 prefixTrackProp: prefixTrackProp,
1116 prefixTrackValue: prefixTrackValue,
1117 getGridGap: getGridGap,
1118 warnGridGap: warnGridGap,
1119 warnTemplateSelectorNotFound: warnTemplateSelectorNotFound,
1120 warnIfGridRowColumnExists: warnIfGridRowColumnExists,
1121 inheritGridGap: inheritGridGap,
1122 autoplaceGridItems: autoplaceGridItems
1123};
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