index.vue
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<template>
<div class="markdown" ref="wrapRef" />
</template>
<script lang="ts">
import {
defineComponent,
ref,
onMounted,
unref,
PropType,
onUnmounted,
nextTick,
watchEffect,
} from 'vue';
import Vditor from 'vditor';
import 'vditor/dist/index.css';
export default defineComponent({
emits: ['update:value'],
props: {
height: {
type: Number as PropType<number>,
default: 360,
},
value: {
type: String,
default: '',
},
},
setup(props, { attrs, emit }) {
const wrapRef = ref<Nullable<HTMLDivElement>>(null);
const vditorRef = ref<Nullable<Vditor>>(null);
const initedRef = ref(false);
function init() {
const wrapEl = unref(wrapRef);
if (!wrapEl) return;
const data = { ...attrs, ...props };
vditorRef.value = new Vditor(wrapEl, {
mode: 'sv',
preview: {
actions: [],
},
input: (v) => {
emit('update:value', v);
},
...data,
cache: {
enable: false,
},
});
initedRef.value = true;
}
watchEffect(() => {
nextTick(() => {
const vditor = unref(vditorRef);
if (unref(initedRef) && props.value && vditor) {
vditor.setValue(props.value);
}
});
});
onMounted(() => {
nextTick(() => {
init();
});
});
onUnmounted(() => {
const vditorInstance = unref(vditorRef);
if (!vditorInstance) return;
vditorInstance.destroy();
});
return {
wrapRef,
getVditor: (): Vditor => vditorRef.value!,
};
},
});
</script>