feat: htmlToMarkdown (#968)

static/js/html-to-markdown.js

@@ -0,0 +1,29 @@
+
+class HtmlToMarkdownConverter {
+
+    handleFileSelect(callback, accept = '.html,.htm') {
+        let input = document.createElement('input');
+        input.type = 'file';
+        input.accept = accept;
+        input.onchange = (e)=>{
+            let file = e.target.files[0];
+            if (!file) {
+                return;
+            }
+            let reader = new FileReader();
+            reader.onload = (e)=>{
+                let text = e.target.result;
+                let markdown = this.convertToMarkdown(text);
+                callback(markdown);
+            };
+            reader.readAsText(file);
+        };
+        input.click();
+    }
+
+
+    convertToMarkdown(html) {
+        let turndownService = new TurndownService()
+        return turndownService.turndown(html)
+    }
+}