Fix #10814. Fix #14084. Make support tests lazy and broken out to components.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/event/support.js b/src/event/support.js
new file mode 100644
index 000000000..1912b8430
--- /dev/null
+++ b/src/event/support.js
@@ -0,0 +1,23 @@
+define([
+	"../var/support"
+], function( support ) {
+
+(function () {
+	var i, eventName,
+		div = document.createElement("div" );
+
+	// Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
+	// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
+	for ( i in { submit: true, change: true, focusin: true }) {
+		div.setAttribute( eventName = "on" + i, "t" );
+
+		support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
+	}
+
+	// Null elements to avoid leaks in IE.
+	div = null;
+})();
+
+return support;
+
+});