Use user's selected language for next code cell

apps/vscode/CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## 1.115.0
 
+- In Source Mode, `Insert Code Cell` now places your cursor directly into the code cell if you've already specified the language in a previous cell (<https://github.com/quarto-dev/quarto/pull/540>).
 - Improved reliability of sequential execution of code cells in Positron (<https://github.com/quarto-dev/quarto/pull/510>).
 
 ## 1.114.0 (Release on 06 Aug 2024)

apps/vscode/src/providers/insert.ts

@@ -98,17 +98,22 @@ class InsertCodeCellCommand implements Command {
           }
         }
 
-        // order by language
-        const allLangs = ['python', 'r', 'julia', 'ojs', 'sql', 'bash', 'mermaid', 'dot'];
-        const languages = language 
-          ? [language, allLangs.filter(lang => lang !== language)]
-          : allLangs;
-
+        // if we have a known language, use it and put the cursor directly in the
+        // code cell, otherwise let the user select the language first
+        let header;
+
+        if (language) {
+          header = "```{" + language + "}";
+        } else {
+          const languages = ['python', 'r', 'julia', 'ojs', 'sql', 'bash', 'mermaid', 'dot'];
+          header = "```{${1|" + languages.join(",") + "|}}";
+        }
+
         // insert snippet
         await commands.executeCommand("editor.action.insertSnippet", {
           snippet: [
             ...(insertTopPaddingLine ? [""] : []),
-            "```{${1|" + languages.join(",") + "|}}",
+            header,
             "${TM_SELECTED_TEXT}$0",
             "```"
           ].join("\n"),