52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
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import ObjectUtils from './ObjectUtils';
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export default class {
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helpers;
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type;
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constructor({ init, type }) {
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this.helpers = new Set(init);
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this.type = type;
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}
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add(instance) {
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this.helpers.add(instance);
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}
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update() {
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// @todo
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}
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delete(instance) {
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this.helpers.delete(instance);
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}
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clear() {
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this.helpers.clear();
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}
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get(parentInstance, slots) {
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const children = this._get(parentInstance, slots);
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const computed = children ? this._recursive([...this.helpers], children) : null;
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return ObjectUtils.isNotEmpty(computed) ? computed : null;
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}
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_isMatched(instance, key) {
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const parent = instance?.parent;
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return parent?.vnode?.key === key || (parent && this._isMatched(parent, key)) || false;
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}
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_get(parentInstance, slots) {
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return (slots || parentInstance?.$slots)?.default?.() || null;
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}
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_recursive(helpers = [], children = []) {
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let components = [];
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children.forEach((child) => {
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if (child.children instanceof Array) {
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components = components.concat(this._recursive(components, child.children));
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} else if (child.type.name === this.type) {
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components.push(child);
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} else if (ObjectUtils.isNotEmpty(child.key)) {
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components = components.concat(helpers.filter((c) => this._isMatched(c, child.key)).map((c) => c.vnode));
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}
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});
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return components;
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}
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}
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