use akkoma-specific source for MFM unless asked not to (#132)

Reviewed-on: https://akkoma.dev/AkkomaGang/pleroma-fe/pulls/132

src/components/rich_content/rich_content.jsx

@@ -10,6 +10,11 @@ import HashtagLink from 'src/components/hashtag_link/hashtag_link.vue'
 
 import './rich_content.scss'
 
+const selectContent = (html, sourceContent, mfm) => {
+  if (!mfm) return html
+  return sourceContent === '' ? html : sourceContent
+}
+
 /**
  * RichContent, The Über-powered component for rendering Post HTML.
  *
@@ -66,6 +71,11 @@ export default {
       required: false,
       type: Boolean,
       default: false
+    },
+    sourceContent: {
+      required: false,
+      type: String,
+      default: ''
     }
   },
   // NEVER EVER TOUCH DATA INSIDE RENDER
@@ -74,7 +84,8 @@ export default {
     const greentext = this.mfm ? false : this.greentext
 
     // Pre-process HTML
-    const { newHtml: html } = preProcessPerLine(this.html, greentext)
+    const useContent = selectContent(this.html, this.sourceContent, this.mfm)
+    const { newHtml: html } = preProcessPerLine(useContent, greentext)
     let currentMentions = null // Current chain of mentions, we group all mentions together
     // This is used to recover spacing removed when parsing mentions
     let lastSpacing = ''
@@ -169,7 +180,7 @@ export default {
     }
 
     // Processor to use with html_tree_converter
-    const processItem = (item, index, array, what) => {
+    const processItem = (item, index, array) => {
       // Handle text nodes - just add emoji
       if (typeof item === 'string') {
         const emptyText = item.trim() === ''

src/components/status_body/status_body.vue

@@ -52,6 +52,7 @@
             :emoji="status.emojis"
             :handle-links="true"
             :mfm="renderMisskeyMarkdown && (status.media_type === 'text/x.misskeymarkdown')"
+            :sourceContent="status.source_content"
             :greentext="mergedConfig.greentext"
             :attentions="status.attentions"
             @parseReady="onParseReady"