fix: make sure the top of scheduleDetailPopup is non-negative (#638)

nhn · Jun 22, 2020 · fc55ad8 · fc55ad8
1 parent dfe8541
commit fc55ad8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/js/view/popup/scheduleDetailPopup.js b/src/js/view/popup/scheduleDetailPopup.js
@@ -187,7 +187,7 @@ ScheduleDetailPopup.prototype._getYAndArrowTop = function(
         y = 0;
         arrowTop = scheduleVerticalCenter - containerTop - ARROW_WIDTH_HALF;
     } else if (y + layerHeight > containerBottom) {
-        y = containerBottom - layerHeight - containerTop;
+        y = Math.max(containerBottom - layerHeight - containerTop, 0);
         arrowTop = scheduleVerticalCenter - y - containerTop - ARROW_WIDTH_HALF;
     } else {
         y -= containerTop;