memory leak problems with tetris poop

priv/static/js/ts/libfewd.ts

@@ -5,6 +5,39 @@
  */
 
 export {
+    auto_resize,
+    auto_scroll_to_bottom
 };
 
 
+function
+auto_resize
+    (checkbox_element : HTMLInputElement,
+     target_element   : HTMLTextAreaElement,
+     max_height       : number)
+    : void
+{
+    // if the user has manually resized their output, we do nothing
+    if (checkbox_element.checked) {
+        let target_height: number = target_element.scrollHeight;
+        // resize it automagically up to 500px
+        if (target_height < max_height)
+            target_element.style.height = String(target_height) + 'px';
+        else
+            target_element.style.height = String(max_height) + 'px';
+    }
+}
+
+
+function
+auto_scroll_to_bottom
+    (checkbox_element : HTMLInputElement,
+     target_element   : HTMLTextAreaElement)
+    : void
+{
+    if (checkbox_element.checked) {
+        // scroll to bottom
+        target_element.scrollTop = target_element.scrollHeight;
+    }
+}
+

priv/static/js/ts/tetris.ts

@@ -0,0 +1,49 @@
+/**
+ * Tetris
+ *
+ * @module
+ */
+
+export {
+
+};
+
+import * as libfewd from './libfewd.js';
+
+main();
+
+async function
+main
+    ()
+    : Promise<void>
+{
+    let ws               : WebSocket           = new WebSocket("/ws/tetris")                                    ;
+    let elt_tetris_state : HTMLTextAreaElement = document.getElementById('tetris-state') as HTMLTextAreaElement ;
+
+    ws.onmessage =
+        (e: MessageEvent) => {
+            handle_evt(e, elt_tetris_state);
+        }
+}
+
+//-----------------------------------------------------
+// Tetris
+//-----------------------------------------------------
+
+
+/**
+ * take the entire tetris state, render the html elements
+ *
+ * then fish out the element in the document, and replace it
+ *
+ * blitting basically
+ */
+async function
+handle_evt
+    (e    : MessageEvent,
+     oelt : HTMLTextAreaElement)
+    : Promise<void>
+{
+    let state_str : string = e.data as string;
+    oelt.value = state_str;
+}