DOM: Simplify CustomEvent polyfill

inexorabletash · Jan 14, 2017 · 78ccdc7 · 78ccdc7
1 parent 40b7c32
commit 78ccdc7
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Showing 5 changed files with 38 additions and 7 deletions.
diff --git a/dom.js b/dom.js
@@ -217,16 +217,15 @@
   // https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent
   // Needed for: IE
   (function () {
-    if ('CustomEvent' in global) {
-      if ( typeof global.CustomEvent === "function" ) return false;
-    }
+    if ('CustomEvent' in global && typeof global.CustomEvent === "function")
+      return;
     function CustomEvent ( event, params ) {
       params = params || { bubbles: false, cancelable: false, detail: undefined };
       var evt = document.createEvent( 'CustomEvent' );
       evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
       return evt;
     }
-    CustomEvent.prototype = window.Event.prototype;
+    CustomEvent.prototype = global.Event.prototype;
     global.CustomEvent = CustomEvent;
   })();
 

diff --git a/polyfill.js b/polyfill.js
@@ -4800,6 +4800,22 @@ function __cons(t, a) {
     });
   }());
 
+  // CustomEvent
+  // https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent
+  // Needed for: IE
+  (function () {
+    if ('CustomEvent' in global && typeof global.CustomEvent === "function")
+      return;
+    function CustomEvent ( event, params ) {
+      params = params || { bubbles: false, cancelable: false, detail: undefined };
+      var evt = document.createEvent( 'CustomEvent' );
+      evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
+      return evt;
+    }
+    CustomEvent.prototype = global.Event.prototype;
+    global.CustomEvent = CustomEvent;
+  })();
+
   // Shim for DOM Events for IE7-
   // http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
   // Use addEvent(object, event, handler) instead of object.addEventListener(event, handler)

diff --git a/polyfill.min.js b/polyfill.min.js
diff --git a/web.js b/web.js
@@ -399,6 +399,22 @@
     });
   }());
 
+  // CustomEvent
+  // https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent
+  // Needed for: IE
+  (function () {
+    if ('CustomEvent' in global && typeof global.CustomEvent === "function")
+      return;
+    function CustomEvent ( event, params ) {
+      params = params || { bubbles: false, cancelable: false, detail: undefined };
+      var evt = document.createEvent( 'CustomEvent' );
+      evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
+      return evt;
+    }
+    CustomEvent.prototype = global.Event.prototype;
+    global.CustomEvent = CustomEvent;
+  })();
+
   // Shim for DOM Events for IE7-
   // http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
   // Use addEvent(object, event, handler) instead of object.addEventListener(event, handler)

diff --git a/web.min.js b/web.min.js