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<script>
import { debounce } from 'lodash';
import { NodeViewWrapper, NodeViewContent } from '@tiptap/vue-2';
import { __ } from '~/locale';
import { DEFAULT_DEBOUNCE_AND_THROTTLE_MS } from '~/lib/utils/constants';
import SandboxedMermaid from '~/behaviors/components/sandboxed_mermaid.vue';
import codeBlockLanguageLoader from '../../services/code_block_language_loader';
import EditorStateObserver from '../editor_state_observer.vue';
export default {
name: 'CodeBlock',
components: {
NodeViewWrapper,
NodeViewContent,
EditorStateObserver,
SandboxedMermaid,
},
inject: ['contentEditor'],
props: {
editor: {
type: Object,
required: true,
},
node: {
type: Object,
required: true,
},
updateAttributes: {
type: Function,
required: true,
},
selected: {
type: Boolean,
required: false,
default: false,
},
},
data() {
return {
diagramUrl: '',
diagramSource: '',
};
},
async mounted() {
this.updateDiagramPreview = debounce(
this.updateDiagramPreview,
DEFAULT_DEBOUNCE_AND_THROTTLE_MS,
);
const lang = codeBlockLanguageLoader.findOrCreateLanguageBySyntax(this.node.attrs.language);
await codeBlockLanguageLoader.loadLanguage(lang.syntax);
this.updateAttributes({ language: this.node.attrs.language });
},
methods: {
async updateDiagramPreview() {
if (!this.node.attrs.showPreview) {
this.diagramSource = '';
return;
}
if (!this.editor.isActive('diagram')) return;
this.diagramSource = this.$refs.nodeViewContent.$el.textContent;
if (this.node.attrs.language !== 'mermaid') {
this.diagramUrl = await this.contentEditor.renderDiagram(
this.diagramSource,
this.node.attrs.language,
);
}
},
},
i18n: {
frontmatter: __('frontmatter'),
},
userColorScheme: gon.user_color_scheme,
};
</script>
<template>
<editor-state-observer @transaction="updateDiagramPreview">
<node-view-wrapper
:class="`content-editor-code-block gl-relative code highlight ${$options.userColorScheme}`"
as="pre"
>
<div
v-if="node.attrs.showPreview"
class="gl-mt-n3! gl-ml-n4! gl-mr-n4! gl-mb-3 gl-bg-white! gl-p-4 gl-border-b-1 gl-border-b-solid gl-border-b-gray-100"
>
<sandboxed-mermaid v-if="node.attrs.language === 'mermaid'" :source="diagramSource" />
<img v-else ref="diagramContainer" :src="diagramUrl" />
</div>
<span
v-if="node.attrs.isFrontmatter"
data-testid="frontmatter-label"
class="gl-absolute gl-top-0 gl-right-3"
contenteditable="false"
>{{ $options.i18n.frontmatter }}:{{ node.attrs.language }}</span
>
<node-view-content ref="nodeViewContent" as="code" />
</node-view-wrapper>
</editor-state-observer>
</template>
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