MarkdownViewer.vue
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<template>
<div ref="viewerRef" id="markdownViewer" :class="$props.class"></div>
</template>
<script lang="ts" setup>
import { defineProps, onBeforeUnmount, onDeactivated, Ref, ref, unref, watch } from 'vue';
import VditorPreview from 'vditor/dist/method.min';
import { onMountedOrActivated } from '/@/hooks/core/onMountedOrActivated';
import { useRootSetting } from '/@/hooks/setting/useRootSetting';
import { getTheme } from './getTheme';
const props = defineProps({
value: { type: String },
class: { type: String },
});
const viewerRef = ref<ElRef>(null);
const vditorPreviewRef = ref(null) as Ref<Nullable<VditorPreview>>;
const { getDarkMode } = useRootSetting();
function init() {
const viewerEl = unref(viewerRef) as HTMLElement;
vditorPreviewRef.value = VditorPreview.preview(viewerEl, props.value, {
mode: getTheme(getDarkMode.value, 'content'),
theme: {
// 设置内容主题
current: getTheme(getDarkMode.value, 'content'),
},
hljs: {
// 设置代码块主题
style: getTheme(getDarkMode.value, 'code'),
},
});
}
watch(
() => getDarkMode.value,
(val) => {
VditorPreview.setContentTheme(getTheme(val, 'content'));
VditorPreview.setCodeTheme(getTheme(val, 'code'));
init();
},
);
watch(
() => props.value,
(v, oldValue) => {
v !== oldValue && init();
},
);
function destroy() {
const vditorInstance = unref(vditorPreviewRef);
if (!vditorInstance) return;
try {
vditorInstance?.destroy?.();
} catch (error) {}
vditorPreviewRef.value = null;
}
onMountedOrActivated(init);
onBeforeUnmount(destroy);
onDeactivated(destroy);
</script>