adding waitUntil to buttons

libs/core/_locales/core-jsdoc-strings.json

@@ -18,6 +18,8 @@
   "brick.Button.isPressed": "Check if button is currently pressed or not.",
   "brick.Button.onEvent": "Do something when a button or sensor is clicked, up or down.",
   "brick.Button.onEvent|param|body": "code to run when the event is raised",
+  "brick.Button.waitUntil": "Waits until the event is raised",
+  "brick.Button.waitUntil|param|ev": "the event to wait for",
   "brick.Button.wasPressed": "See if the button was pressed again since the last time you checked.",
   "brick._imagePicker": "An image",
   "brick._imagePicker|param|image": "the image",

libs/core/_locales/core-strings.json

@@ -19,6 +19,7 @@
   "Output.D|block": "D",
   "brick.Button.isPressed|block": "`icons.brickButtons` %button|is pressed",
   "brick.Button.onEvent|block": "on `icons.brickButtons` %button|%event",
+  "brick.Button.waitUntil|block": "wait until `icons.brickButtons` %button|%event",
   "brick.Button.wasPressed|block": "`icons.brickButtons` %button|was pressed",
   "brick._imagePicker|block": "%image",
   "brick.buttonDown|block": "down",

libs/core/buttons.ts

@@ -127,6 +127,20 @@ namespace brick {
         onEvent(ev: ButtonEvent, body: () => void) {
             control.onEvent(this._id, ev, body)
         }
+
+        /**
+         * Waits until the event is raised
+         * @param ev the event to wait for
+         */
+        //% help=input/button/wait-until
+        //% blockId=buttonWaitUntil block="wait until `icons.brickButtons` %button|%event"
+        //% parts="brick"
+        //% blockNamespace=brick
+        //% weight=98 blockGap=8
+        //% group="Buttons"
+        waitUntil(ev: ButtonEvent) {
+            control.waitForEvent(this._id, ev);
+        }
     }
 }