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Leaner CSS
122 lines • 4.54 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var node_1 = tslib_1.__importDefault(require("./node"));
var unit_conversions_1 = tslib_1.__importDefault(require("../data/unit-conversions"));
var utils = tslib_1.__importStar(require("../utils"));
var Unit = function (numerator, denominator, backupUnit) {
this.numerator = numerator ? utils.copyArray(numerator).sort() : [];
this.denominator = denominator ? utils.copyArray(denominator).sort() : [];
if (backupUnit) {
this.backupUnit = backupUnit;
}
else if (numerator && numerator.length) {
this.backupUnit = numerator[0];
}
};
Unit.prototype = Object.assign(new node_1.default(), {
type: 'Unit',
clone: function () {
return new Unit(utils.copyArray(this.numerator), utils.copyArray(this.denominator), this.backupUnit);
},
genCSS: function (context, output) {
// Dimension checks the unit is singular and throws an error if in strict math mode.
var strictUnits = context && context.strictUnits;
if (this.numerator.length === 1) {
output.add(this.numerator[0]); // the ideal situation
}
else if (!strictUnits && this.backupUnit) {
output.add(this.backupUnit);
}
else if (!strictUnits && this.denominator.length) {
output.add(this.denominator[0]);
}
},
toString: function () {
var i, returnStr = this.numerator.join('*');
for (i = 0; i < this.denominator.length; i++) {
returnStr += "/".concat(this.denominator[i]);
}
return returnStr;
},
compare: function (other) {
return this.is(other.toString()) ? 0 : undefined;
},
is: function (unitString) {
return this.toString().toUpperCase() === unitString.toUpperCase();
},
isLength: function () {
return RegExp('^(px|em|ex|ch|rem|in|cm|mm|pc|pt|ex|vw|vh|vmin|vmax)$', 'gi').test(this.toCSS());
},
isEmpty: function () {
return this.numerator.length === 0 && this.denominator.length === 0;
},
isSingular: function () {
return this.numerator.length <= 1 && this.denominator.length === 0;
},
map: function (callback) {
var i;
for (i = 0; i < this.numerator.length; i++) {
this.numerator[i] = callback(this.numerator[i], false);
}
for (i = 0; i < this.denominator.length; i++) {
this.denominator[i] = callback(this.denominator[i], true);
}
},
usedUnits: function () {
var group;
var result = {};
var mapUnit;
var groupName;
mapUnit = function (atomicUnit) {
// eslint-disable-next-line no-prototype-builtins
if (group.hasOwnProperty(atomicUnit) && !result[groupName]) {
result[groupName] = atomicUnit;
}
return atomicUnit;
};
for (groupName in unit_conversions_1.default) {
// eslint-disable-next-line no-prototype-builtins
if (unit_conversions_1.default.hasOwnProperty(groupName)) {
group = unit_conversions_1.default[groupName];
this.map(mapUnit);
}
}
return result;
},
cancel: function () {
var counter = {};
var atomicUnit;
var i;
for (i = 0; i < this.numerator.length; i++) {
atomicUnit = this.numerator[i];
counter[atomicUnit] = (counter[atomicUnit] || 0) + 1;
}
for (i = 0; i < this.denominator.length; i++) {
atomicUnit = this.denominator[i];
counter[atomicUnit] = (counter[atomicUnit] || 0) - 1;
}
this.numerator = [];
this.denominator = [];
for (atomicUnit in counter) {
// eslint-disable-next-line no-prototype-builtins
if (counter.hasOwnProperty(atomicUnit)) {
var count = counter[atomicUnit];
if (count > 0) {
for (i = 0; i < count; i++) {
this.numerator.push(atomicUnit);
}
}
else if (count < 0) {
for (i = 0; i < -count; i++) {
this.denominator.push(atomicUnit);
}
}
}
}
this.numerator.sort();
this.denominator.sort();
}
});
exports.default = Unit;
//# sourceMappingURL=unit.js.map