Add latest changes from gitlab-org/gitlab@13-8-stable-eev13.8.0-rc42

3 files changed, 52 insertions, 2 deletions

diff --git a/app/assets/javascripts/notebook/cells/markdown.vue b/app/assets/javascripts/notebook/cells/markdown.vue
index c04f2a2d465..d1d5ae5265a 100644
--- a/app/assets/javascripts/notebook/cells/markdown.vue
+++ b/app/assets/javascripts/notebook/cells/markdown.vue
@@ -77,11 +77,11 @@ function renderKatex(t) {
   }
   return [text, numInline > 0];
 }
-renderer.paragraph = t => {
+renderer.paragraph = (t) => {
   const [text, inline] = renderKatex(t);
   return `<p class="${inline ? 'inline-katex' : ''}">${text}</p>`;
 };
-renderer.listitem = t => {
+renderer.listitem = (t) => {
   const [text, inline] = renderKatex(t);
   return `<li class="${inline ? 'inline-katex' : ''}">${text}</li>`;
 };
diff --git a/app/assets/javascripts/notebook/cells/output/index.vue b/app/assets/javascripts/notebook/cells/output/index.vue
index 113d8cfc435..5f7ef4a4377 100644
--- a/app/assets/javascripts/notebook/cells/output/index.vue
+++ b/app/assets/javascripts/notebook/cells/output/index.vue
@@ -2,6 +2,7 @@
 import CodeOutput from '../code/index.vue';
 import HtmlOutput from './html.vue';
 import ImageOutput from './image.vue';
+import LatexOutput from './latex.vue';
 
 export default {
   props: {
@@ -35,6 +36,8 @@ export default {
         return 'image/jpeg';
       } else if (output.data['text/html']) {
         return 'text/html';
+      } else if (output.data['text/latex']) {
+        return 'text/latex';
       } else if (output.data['image/svg+xml']) {
         return 'image/svg+xml';
       }
@@ -59,6 +62,8 @@ export default {
         return ImageOutput;
       } else if (output.data['text/html']) {
         return HtmlOutput;
+      } else if (output.data['text/latex']) {
+        return LatexOutput;
       } else if (output.data['image/svg+xml']) {
         return HtmlOutput;
       }
diff --git a/app/assets/javascripts/notebook/cells/output/latex.vue b/app/assets/javascripts/notebook/cells/output/latex.vue
new file mode 100644
index 00000000000..db9e61dce82
--- /dev/null
+++ b/app/assets/javascripts/notebook/cells/output/latex.vue
@@ -0,0 +1,45 @@
+<script>
+import 'mathjax/es5/tex-svg';
+import Prompt from '../prompt.vue';
+
+export default {
+  name: 'LatexOutput',
+  components: {
+    Prompt,
+  },
+  props: {
+    count: {
+      type: Number,
+      required: true,
+    },
+    rawCode: {
+      type: String,
+      required: true,
+    },
+    index: {
+      type: Number,
+      required: true,
+    },
+  },
+  computed: {
+    code() {
+      // MathJax will not parse out the inline delimeters "$$" correctly
+      // so we remove them from the raw code itself
+      const parsedCode = this.rawCode.replace(/\$\$/g, '');
+      const svg = window.MathJax.tex2svg(parsedCode);
+
+      // NOTE: This is used with `v-html` and not `v-safe-html` due to an
+      // issue with dompurify stripping out xlink attributes from use tags
+      return svg.outerHTML;
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="output">
+    <prompt type="Out" :count="count" :show-output="index === 0" />
+    <!-- eslint-disable -->
+    <div ref="maths" v-html="code"></div>
+  </div>
+</template>