const traverse = require('traverse');
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const clone = require('clone');
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// Fixes Firefox bug https://bugzilla.mozilla.org/show_bug.cgi?id=353575
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const defaultConfig = {
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tags: ['linearGradient', 'radialGradient', 'pattern', 'clipPath', 'mask']
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};
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function moveFromSymbolToRoot(config = null) {
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const cfg = Object.assign({}, defaultConfig, config);
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return (tree) => {
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traverse(tree).forEach(function (node) {
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if (!this.isLeaf && node.tag && node.tag === 'symbol') {
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const symbol = this.parent.node;
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const nodesToRemove = [];
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traverse(node.content).forEach(function (n) {
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if (!this.isLeaf && n.tag && cfg.tags.indexOf(n.tag) !== -1) {
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const parent = this.parent.node;
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const cloned = clone(this.node);
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symbol.push(cloned);
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nodesToRemove.push({ parent, node: n });
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}
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});
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nodesToRemove.forEach((item) => {
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const nodeIndex = item.parent.indexOf(item.node);
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item.parent.splice(nodeIndex, 1);
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});
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}
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});
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return tree;
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};
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}
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module.exports = moveFromSymbolToRoot;
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