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137 lines
5.0 KiB
137 lines
5.0 KiB
'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 Declaration = require('../declaration'); |
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var DOTS = /^\.+$/; |
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function track(start, end) { |
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return { start: start, end: end, span: end - start }; |
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} |
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function getRows(tpl) { |
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return tpl.trim().slice(1, -1).split(/['"]\s*['"]?/g); |
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} |
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function getColumns(line) { |
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return line.trim().split(/\s+/g); |
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} |
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function parseGridAreas(tpl) { |
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return getRows(tpl).reduce(function (areas, line, rowIndex) { |
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if (line.trim() === '') return areas; |
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getColumns(line).forEach(function (area, columnIndex) { |
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if (DOTS.test(area)) return; |
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if (typeof areas[area] === 'undefined') { |
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areas[area] = { |
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column: track(columnIndex + 1, columnIndex + 2), |
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row: track(rowIndex + 1, rowIndex + 2) |
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}; |
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} else { |
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var _areas$area = areas[area], |
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column = _areas$area.column, |
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row = _areas$area.row; |
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column.start = Math.min(column.start, columnIndex + 1); |
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column.end = Math.max(column.end, columnIndex + 2); |
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column.span = column.end - column.start; |
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row.start = Math.min(row.start, rowIndex + 1); |
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row.end = Math.max(row.end, rowIndex + 2); |
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row.span = row.end - row.start; |
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} |
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}); |
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return areas; |
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}, {}); |
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} |
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var GridTemplateAreas = function (_Declaration) { |
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_inherits(GridTemplateAreas, _Declaration); |
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function GridTemplateAreas() { |
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_classCallCheck(this, GridTemplateAreas); |
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return _possibleConstructorReturn(this, _Declaration.apply(this, arguments)); |
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} |
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GridTemplateAreas.prototype.getRoot = function getRoot(parent) { |
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if (parent.type === 'atrule' || !parent.parent) { |
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return parent; |
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} |
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return this.getRoot(parent.parent); |
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}; |
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/** |
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* Translate grid-template-areas to separate -ms- prefixed properties |
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*/ |
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GridTemplateAreas.prototype.insert = function insert(decl, prefix, prefixes, result) { |
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if (prefix !== '-ms-') return _Declaration.prototype.insert.call(this, decl, prefix, prefixes); |
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var areas = parseGridAreas(decl.value); |
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var missed = Object.keys(areas); |
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this.getRoot(decl.parent).walkDecls('grid-area', function (gridArea) { |
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var value = gridArea.value; |
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var area = areas[value]; |
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missed = missed.filter(function (e) { |
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return e !== value; |
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}); |
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if (area) { |
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gridArea.parent.walkDecls(/-ms-grid-(row|column)/, function (d) { |
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d.remove(); |
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}); |
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gridArea.cloneBefore({ |
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prop: '-ms-grid-row', |
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value: String(area.row.start) |
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}); |
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if (area.row.span > 1) { |
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gridArea.cloneBefore({ |
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prop: '-ms-grid-row-span', |
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value: String(area.row.span) |
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}); |
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} |
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gridArea.cloneBefore({ |
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prop: '-ms-grid-column', |
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value: String(area.column.start) |
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}); |
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if (area.column.span > 1) { |
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gridArea.cloneBefore({ |
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prop: '-ms-grid-column-span', |
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value: String(area.column.span) |
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}); |
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} |
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} |
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return undefined; |
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}); |
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if (missed.length > 0) { |
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decl.warn(result, 'Can not find grid areas: ' + missed.join(', ')); |
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} |
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return decl; |
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}; |
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return GridTemplateAreas; |
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}(Declaration); |
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Object.defineProperty(GridTemplateAreas, 'names', { |
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enumerable: true, |
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writable: true, |
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value: ['grid-template-areas'] |
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}); |
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module.exports = GridTemplateAreas; |