Press n or j to go to the next uncovered block, b, p or k for the previous block.
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<div :class="$style.root">
<div :class="$style.text">{{ text }}</div>
<div :class="$style.sub">
<slot></slot>
</div>
</div>
</template>
<script>
import MEmitter from '../m-emitter.vue';
export default {
name: 'm-node',
rootName: 'm-root',
mixins: [MEmitter],
props: { text: String },
data() {
return { nodeVMs: [], rootVM: undefined, parentVM: undefined };
},
created() {
!this.parentVM
&& this.$contact(this.$options.name, (parentVM) => {
this.parentVM = parentVM;
this.rootVM = parentVM.rootVM;
parentVM.nodeVMs.push(this);
}); // 顺序不能换
!this.parentVM
&& this.$contact(this.$options.rootName, (rootVM) => {
this.rootVM = rootVM;
rootVM.nodeVMs.push(this);
});
},
destroyed() {
this.$contact(this.$options.rootName, (rootVM) => {
const index = rootVM.nodeVMs.indexOf(this);
~index && rootVM.nodeVMs.splice(index, 1);
this.rootVM = undefined;
});
this.$contact(this.$options.name, (parentVM) => {
const index = parentVM.nodeVMs.indexOf(this);
~index && parentVM.nodeVMs.splice(index, 1);
this.rootVM = undefined;
this.parentVM = undefined;
});
},
};
</script>
<style module>
.root {
margin-left: 20px;
}
.text {
position: relative;
padding: 4px 12px;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
</style>
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