100 lines
1.9 KiB
Vue
100 lines
1.9 KiB
Vue
<script setup lang="ts">
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import mermaid from 'mermaid';
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import { computed, onMounted, ref, watch } from 'vue';
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const props = defineProps<{
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chart: string;
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}>();
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const container = ref<HTMLElement | null>(null);
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const error = ref('');
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let initialized = false;
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let diagramId = 0;
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function initMermaid() {
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if (initialized) {
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return;
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}
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mermaid.initialize({
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startOnLoad: false,
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theme: 'neutral',
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securityLevel: 'loose',
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fontFamily: 'Inter, Arial, sans-serif',
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flowchart: {
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useMaxWidth: true,
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htmlLabels: true,
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},
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});
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initialized = true;
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}
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const source = computed(() => props.chart.trim());
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async function renderDiagram() {
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if (!import.meta.client || !container.value) {
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return;
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}
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try {
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initMermaid();
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error.value = '';
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diagramId += 1;
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container.value.removeAttribute('data-processed');
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container.value.id = `mermaid-diagram-${diagramId}`;
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container.value.textContent = source.value;
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await mermaid.run({
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nodes: [container.value],
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});
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} catch (cause) {
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error.value = cause instanceof Error ? cause.message : 'Failed to render Mermaid diagram.';
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}
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}
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onMounted(() => {
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void renderDiagram();
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});
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watch(source, () => {
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void renderDiagram();
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});
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</script>
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<template>
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<div class="mermaid-diagram">
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<div v-if="error" class="mermaid-diagram__error">{{ error }}</div>
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<pre v-else ref="container" class="mermaid-diagram__canvas mermaid" />
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</div>
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</template>
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<style scoped>
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.mermaid-diagram {
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margin: 1.25rem 0 1.75rem;
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border: 1px solid #d9dee7;
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border-radius: 20px;
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background: #fff;
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overflow: hidden;
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}
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.mermaid-diagram__canvas {
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padding: 1rem;
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margin: 0;
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white-space: pre-wrap;
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}
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.mermaid-diagram__canvas :deep(svg) {
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display: block;
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width: 100%;
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height: auto;
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}
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.mermaid-diagram__error {
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padding: 1rem 1.25rem;
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color: #b42318;
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background: #fef3f2;
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font-size: 0.95rem;
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}
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</style>
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