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node_modules/postcss-ordered-values/dist/rules/animation.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+exports.default = normalizeAnimation;
+
+var _postcssValueParser = require('postcss-value-parser');
+
+var _cssnanoUtilGetArguments = require('cssnano-util-get-arguments');
+
+var _cssnanoUtilGetArguments2 = _interopRequireDefault(_cssnanoUtilGetArguments);
+
+var _addSpace = require('../lib/addSpace');
+
+var _addSpace2 = _interopRequireDefault(_addSpace);
+
+var _getValue = require('../lib/getValue');
+
+var _getValue2 = _interopRequireDefault(_getValue);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+// animation: [ none | <keyframes-name> ] || <time> || <single-timing-function> || <time> || <single-animation-iteration-count> || <single-animation-direction> || <single-animation-fill-mode> || <single-animation-play-state>
+
+const isTimingFunction = (value, type) => {
+    const functions = ['steps', 'cubic-bezier', 'frames'];
+    const keywords = ['ease', 'ease-in', 'ease-in-out', 'ease-out', 'linear', 'step-end', 'step-start'];
+
+    return type === 'function' && functions.includes(value) || keywords.includes(value);
+};
+
+const isDirection = value => {
+    return ['normal', 'reverse', 'alternate', 'alternate-reverse'].includes(value);
+};
+
+const isFillMode = value => {
+    return ['none', 'forwards', 'backwards', 'both'].includes(value);
+};
+
+const isPlayState = value => {
+    return ['running', 'paused'].includes(value);
+};
+
+const isTime = value => {
+    const quantity = (0, _postcssValueParser.unit)(value);
+
+    return quantity && ['ms', 's'].includes(quantity.unit);
+};
+
+const isIterationCount = value => {
+    const quantity = (0, _postcssValueParser.unit)(value);
+
+    return value === 'infinite' || quantity && !quantity.unit;
+};
+
+function normalizeAnimation(parsed) {
+    const args = (0, _cssnanoUtilGetArguments2.default)(parsed);
+
+    const values = args.reduce((list, arg) => {
+        const state = {
+            name: [],
+            duration: [],
+            timingFunction: [],
+            delay: [],
+            iterationCount: [],
+            direction: [],
+            fillMode: [],
+            playState: []
+        };
+        const stateConditions = [{ property: 'duration', delegate: isTime }, { property: 'timingFunction', delegate: isTimingFunction }, { property: 'delay', delegate: isTime }, { property: 'iterationCount', delegate: isIterationCount }, { property: 'direction', delegate: isDirection }, { property: 'fillMode', delegate: isFillMode }, { property: 'playState', delegate: isPlayState }];
+
+        arg.forEach(node => {
+            let { type, value } = node;
+
+            if (type === 'space') {
+                return;
+            }
+
+            value = value.toLowerCase();
+
+            const hasMatch = stateConditions.some(({ property, delegate }) => {
+                if (delegate(value, type) && !state[property].length) {
+                    state[property] = [node, (0, _addSpace2.default)()];
+                    return true;
+                }
+            });
+
+            if (!hasMatch) {
+                state.name = [...state.name, node, (0, _addSpace2.default)()];
+            }
+        });
+        return [...list, [...state.name, ...state.duration, ...state.timingFunction, ...state.delay, ...state.iterationCount, ...state.direction, ...state.fillMode, ...state.playState]];
+    }, []);
+
+    return (0, _getValue2.default)(values);
+};
+module.exports = exports['default'];