Widget:Interrupt: Difference between revisions

Revision as of 10:48, 13 August 2019

This widget demonstrates the operation of an interrupt handler, and what happens when interrupts are disabled.

@@ Line 67: / Line 67: @@
 }
+var isRunning = true;
 function interrupt() {
      if ((mouse.x >= STOP_X) && (mouse.x < (STOP_X + STOP_DX)) &&
          (mouse.y >= STOP_Y) && (mouse.y < (STOP_Y + STOP_DY))) {
-         clearInterval(clockId);
+         if (isRunning) {
+            clearInterval(clockId);
+            isRunning = false;
+        } else {
+            clockId = setInterval(animate, STEP_TIME);
+            isRunning = true;
+        }
      } else {
          pending = true;