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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
commit26105034da4fcce7ac883c899d781f016559310d (patch)
treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/postcss-reduce-transforms/dist
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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-rw-r--r--node_modules/postcss-reduce-transforms/dist/index.js193
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diff --git a/node_modules/postcss-reduce-transforms/dist/index.js b/node_modules/postcss-reduce-transforms/dist/index.js
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+'use strict';
+
+exports.__esModule = 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);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function getValues(list, _ref, index) {
+ var value = _ref.value;
+
+ if (index % 2 === 0) {
+ return [].concat(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) {
+ var nodes = node.nodes;
+
+ 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]];
+ }
+}
+
+var 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]]];
+
+function rotate3dMatch(values) {
+ return values.reduce(function (list, arg, i) {
+ return list.filter(function (value) {
+ return value[1][i] === arg;
+ });
+ }, rotate3dMappings);
+}
+
+function rotate3d(node, values) {
+ var nodes = node.nodes;
+
+ if (!nodes[6]) {
+ return;
+ }
+ var match = rotate3dMatch(values.slice(0, 3));
+ if (match.length) {
+ node.value = match[0][0];
+ node.nodes = [nodes[6]];
+ }
+}
+
+function rotateZ(node) {
+ // rotateZ(rz) => rotate(rz)
+ node.value = 'rotate';
+}
+
+function scale(node, values) {
+ var nodes = node.nodes;
+
+ if (!nodes[2]) {
+ return;
+ }
+ var first = values[0];
+ var second = values[1];
+ // 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) {
+ var nodes = node.nodes;
+
+ if (!nodes[4]) {
+ return;
+ }
+ var first = values[0];
+ var second = values[1];
+ var third = values[2];
+ // 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) {
+ var nodes = node.nodes;
+
+ 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) {
+ var nodes = node.nodes;
+ // translate3d(0, 0, tz) => translateZ(tz)
+
+ if (nodes[4] && values[0] === 0 && values[1] === 0) {
+ node.value = 'translateZ';
+ node.nodes = [nodes[4]];
+ }
+}
+
+var reducers = {
+ matrix3d: matrix3d,
+ rotate3d: rotate3d,
+ rotateZ: rotateZ,
+ scale: scale,
+ scale3d: scale3d,
+ translate: translate,
+ translate3d: translate3d
+};
+
+function reduce(node) {
+ var nodes = node.nodes;
+ var type = node.type;
+ var value = node.value;
+
+ if (type === 'function' && (0, _has2.default)(reducers, value)) {
+ reducers[value](node, nodes.reduce(getValues, []));
+ }
+ return false;
+}
+
+exports.default = _postcss2.default.plugin('postcss-reduce-transforms', function () {
+ return function (css) {
+ css.walkDecls(/transform$/, function (decl) {
+ decl.value = (0, _postcssValueParser2.default)(decl.value).walk(reduce).toString();
+ });
+ };
+});
+module.exports = exports['default']; \ No newline at end of file