0.2.0 - Mid migration

web/node_modules/postcss-reduce-transforms/dist/index.js

@@ -0,0 +1,220 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _has = require('has');
+
+var _has2 = _interopRequireDefault(_has);
+
+var _postcss = require('postcss');
+
+var _postcss2 = _interopRequireDefault(_postcss);
+
+var _postcssValueParser = require('postcss-value-parser');
+
+var _postcssValueParser2 = _interopRequireDefault(_postcssValueParser);
+
+var _cssnanoUtilGetMatch = require('cssnano-util-get-match');
+
+var _cssnanoUtilGetMatch2 = _interopRequireDefault(_cssnanoUtilGetMatch);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function getValues(list, { value }, index) {
+    if (index % 2 === 0) {
+        return [...list, parseFloat(value)];
+    }
+
+    return list;
+}
+
+function matrix3d(node, values) {
+    // matrix3d(a, b, 0, 0, c, d, 0, 0, 0, 0, 1, 0, tx, ty, 0, 1) => matrix(a, b, c, d, tx, ty)
+    if (values[15] && values[2] === 0 && values[3] === 0 && values[6] === 0 && values[7] === 0 && values[8] === 0 && values[9] === 0 && values[10] === 1 && values[11] === 0 && values[14] === 0 && values[15] === 1) {
+        const { nodes } = node;
+
+        node.value = 'matrix';
+        node.nodes = [nodes[0], // a
+        nodes[1], // ,
+        nodes[2], // b
+        nodes[3], // ,
+        nodes[8], // c
+        nodes[9], // ,
+        nodes[10], // d
+        nodes[11], // ,
+        nodes[24], // tx
+        nodes[25], // ,
+        nodes[26]];
+    }
+}
+
+const rotate3dMappings = [['rotateX', [1, 0, 0]], // rotate3d(1, 0, 0, a) => rotateX(a)
+['rotateY', [0, 1, 0]], // rotate3d(0, 1, 0, a) => rotateY(a)
+['rotate', [0, 0, 1]]];
+
+const rotate3dMatch = (0, _cssnanoUtilGetMatch2.default)(rotate3dMappings);
+
+function rotate3d(node, values) {
+    const { nodes } = node;
+    const match = rotate3dMatch(values.slice(0, 3));
+
+    if (match.length) {
+        node.value = match;
+        node.nodes = [nodes[6]];
+    }
+}
+
+function rotateZ(node) {
+    // rotateZ(rz) => rotate(rz)
+    node.value = 'rotate';
+}
+
+function scale(node, values) {
+    const { nodes } = node;
+
+    if (!nodes[2]) {
+        return;
+    }
+
+    const [first, second] = values;
+
+    // scale(sx, sy) => scale(sx)
+    if (first === second) {
+        node.nodes = [nodes[0]];
+
+        return;
+    }
+
+    // scale(sx, 1) => scaleX(sx)
+    if (second === 1) {
+        node.value = 'scaleX';
+        node.nodes = [nodes[0]];
+
+        return;
+    }
+
+    // scale(1, sy) => scaleY(sy)
+    if (first === 1) {
+        node.value = 'scaleY';
+        node.nodes = [nodes[2]];
+
+        return;
+    }
+}
+
+function scale3d(node, values) {
+    const { nodes } = node;
+    const [first, second, third] = values;
+
+    // scale3d(sx, 1, 1) => scaleX(sx)
+    if (second === 1 && third === 1) {
+        node.value = 'scaleX';
+        node.nodes = [nodes[0]];
+
+        return;
+    }
+
+    // scale3d(1, sy, 1) => scaleY(sy)
+    if (first === 1 && third === 1) {
+        node.value = 'scaleY';
+        node.nodes = [nodes[2]];
+
+        return;
+    }
+
+    // scale3d(1, 1, sz) => scaleZ(sz)
+    if (first === 1 && second === 1) {
+        node.value = 'scaleZ';
+        node.nodes = [nodes[4]];
+
+        return;
+    }
+}
+
+function translate(node, values) {
+    const { nodes } = node;
+
+    if (!nodes[2]) {
+        return;
+    }
+
+    // translate(tx, 0) => translate(tx)
+    if (values[1] === 0) {
+        node.nodes = [nodes[0]];
+
+        return;
+    }
+
+    // translate(0, ty) => translateY(ty)
+    if (values[0] === 0) {
+        node.value = 'translateY';
+        node.nodes = [nodes[2]];
+
+        return;
+    }
+}
+
+function translate3d(node, values) {
+    const { nodes } = node;
+
+    // translate3d(0, 0, tz) => translateZ(tz)
+    if (values[0] === 0 && values[1] === 0) {
+        node.value = 'translateZ';
+        node.nodes = [nodes[4]];
+    }
+}
+
+const reducers = {
+    matrix3d,
+    rotate3d,
+    rotateZ,
+    scale,
+    scale3d,
+    translate,
+    translate3d
+};
+
+function normalizeReducerName(name) {
+    const lowerCasedName = name.toLowerCase();
+
+    if (lowerCasedName === 'rotatez') {
+        return 'rotateZ';
+    }
+
+    return lowerCasedName;
+}
+
+function reduce(node) {
+    const { nodes, type, value } = node;
+    const normalizedReducerName = normalizeReducerName(value);
+
+    if (type === 'function' && (0, _has2.default)(reducers, normalizedReducerName)) {
+        reducers[normalizedReducerName](node, nodes.reduce(getValues, []));
+    }
+
+    return false;
+}
+
+exports.default = _postcss2.default.plugin('postcss-reduce-transforms', () => {
+    return css => {
+        const cache = {};
+
+        css.walkDecls(/transform$/i, decl => {
+            const value = decl.value;
+
+            if (cache[value]) {
+                decl.value = cache[value];
+
+                return;
+            }
+
+            const result = (0, _postcssValueParser2.default)(value).walk(reduce).toString();
+
+            decl.value = result;
+            cache[value] = result;
+        });
+    };
+});
+module.exports = exports['default'];