76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
const getDimension = require('./getDimension');
|
||
|
|
const isStandardSyntaxValue = require('./isStandardSyntaxValue');
|
||
|
|
const isVariable = require('./isVariable');
|
||
|
|
const { animationShorthandKeywords, basicKeywords } = require('../reference/keywords');
|
||
|
|
const postcssValueParser = require('postcss-value-parser');
|
||
|
|
|
||
|
|
/** @typedef {import('postcss-value-parser').Node} Node */
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the animation name within an `animation` shorthand property value.
|
||
|
|
*
|
||
|
|
* @param {string} value
|
||
|
|
*
|
||
|
|
* @returns {Node[]}
|
||
|
|
*/
|
||
|
|
module.exports = function findAnimationName(value) {
|
||
|
|
/** @type {Node[]} */
|
||
|
|
const animationNames = [];
|
||
|
|
|
||
|
|
const valueNodes = postcssValueParser(value);
|
||
|
|
const { nodes } = valueNodes;
|
||
|
|
|
||
|
|
// Handle `inherit`, `initial` and etc
|
||
|
|
if (nodes.length === 1 && nodes[0] && basicKeywords.has(nodes[0].value.toLowerCase())) {
|
||
|
|
return [nodes[0]];
|
||
|
|
}
|
||
|
|
|
||
|
|
let shouldBeIgnored = false;
|
||
|
|
|
||
|
|
valueNodes.walk((valueNode) => {
|
||
|
|
if (shouldBeIgnored) return;
|
||
|
|
|
||
|
|
if (valueNode.type === 'function') {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (valueNode.type !== 'word') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const valueLowerCase = valueNode.value.toLowerCase();
|
||
|
|
|
||
|
|
// Ignore non-standard syntax
|
||
|
|
if (!isStandardSyntaxValue(valueLowerCase)) {
|
||
|
|
// Cannot find animation name if shorthand has non-standard syntax value (#5532)
|
||
|
|
shouldBeIgnored = true;
|
||
|
|
animationNames.length = 0; // clears animationNames
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Ignore variables
|
||
|
|
if (isVariable(valueLowerCase)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Ignore keywords for other animation parts
|
||
|
|
if (animationShorthandKeywords.has(valueLowerCase)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Ignore numbers with units
|
||
|
|
const { unit } = getDimension(valueNode);
|
||
|
|
|
||
|
|
if (unit || unit === '') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
animationNames.push(valueNode);
|
||
|
|
});
|
||
|
|
|
||
|
|
return animationNames;
|
||
|
|
};
|