nuVistA/htdocs/Subtitle.vue

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2023-05-06 12:05:13 -04:00
<script>
import { debounce } from './util.mjs';
const base = 'nuVistA';
const state = [{ value: base }];
const settitle = debounce(s => document.title = s || base, 0);
export default {
props: ['value'],
data() {
return { ptr: null };
},
watch: {
value: {
handler(value) {
this.update(value);
}, immediate: true
}
},
methods: {
update(value) {
if(value) {
if(this.ptr) this.ptr.value = value;
else {
this.ptr = { value };
state.unshift(this.ptr);
}
} else if(this.ptr) {
var idx = state.indexOf(this.ptr);
if(idx >= 0) state.splice(idx, 1);
this.ptr = null;
}
settitle(state.map(x => x.value).join(' - '));
}
},
unmounted() {
this.update();
},
render() {}
};
</script>