Config to toggle the run button on codeblocks

Author: Shogo Takata

src/config.rs

@@ -630,6 +630,8 @@ pub struct Playground {
     pub copy_js: bool,
     /// Display line numbers on playground snippets. Default: `false`.
     pub line_numbers: bool,
+    /// Display the run button. Default: `true`
+    pub runnable: bool,
 }
 
 impl Default for Playground {
@@ -639,6 +641,7 @@ impl Default for Playground {
             copyable: true,
             copy_js: true,
             line_numbers: false,
+            runnable: true,
         }
     }
 }
@@ -781,6 +784,7 @@ mod tests {
             copyable: true,
             copy_js: true,
             line_numbers: false,
+            runnable: true,
         };
         let html_should_be = HtmlConfig {
             curly_quotes: true,

src/renderer/html_handlebars/hbs_renderer.rs

@@ -828,7 +828,8 @@ fn add_playground_pre(
             if classes.contains("language-rust") {
                 if (!classes.contains("ignore")
                     && !classes.contains("noplayground")
-                    && !classes.contains("noplaypen"))
+                    && !classes.contains("noplaypen")
+                    && playground_config.runnable)
                     || classes.contains("mdbook-runnable")
                 {
                     let contains_e2015 = classes.contains("edition2015");