33 lines
637 B
Vue
33 lines
637 B
Vue
<script>
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import { menustate } from './common.mjs';
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export default {
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props: ['value'],
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data() {
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return { ptr: null };
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},
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watch: {
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value: {
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handler(value) {
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this.update(value);
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}, immediate: true
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}
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},
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methods: {
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update(value) {
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var idx = this.ptr ? menustate.indexOf(this.ptr) : -1;
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if(idx >= 0) menustate.splice(idx, 1);
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if(value) {
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this.ptr = value;
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if(idx >= 0) menustate.splice(idx, 0, this.ptr);
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else menustate.unshift(this.ptr);
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} else this.ptr = null;
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}
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},
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unmounted() {
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this.update();
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},
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render() {}
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};
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</script>
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