Backport #28777.

Toast should allow prevent default for hide and show events

1 files changed, 13 insertions, 2 deletions

diff --git a/js/src/toast.js b/js/src/toast.js
index 9657048469..fd023e7021 100644
--- a/js/src/toast.js
+++ b/js/src/toast.js
@@ -82,7 +82,12 @@ class Toast {
   // Public
 
   show() {
-    $(this._element).trigger(Event.SHOW)
+    const showEvent = $.Event(Event.SHOW)
+
+    $(this._element).trigger(showEvent)
+    if (showEvent.isDefaultPrevented()) {
+      return
+    }
 
     if (this._config.animation) {
       this._element.classList.add(ClassName.FADE)
@@ -119,7 +124,13 @@ class Toast {
       return
     }
 
-    $(this._element).trigger(Event.HIDE)
+    const hideEvent = $.Event(Event.HIDE)
+
+    $(this._element).trigger(hideEvent)
+    if (hideEvent.isDefaultPrevented()) {
+      return
+    }
+
     this._close()
   }