Draggable: Safe activeElement access from iFrames for IE9, prevent window focus changes in IE9+. Fixed #9520 - Draggable: Browser window drops behind other windows in IE9/10

This commit is contained in:
TJ VanToll 2013-08-28 09:17:01 -04:00
parent 643ef44ee2
commit eae2c4b358

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@ -76,9 +76,19 @@ $.widget("ui.draggable", $.ui.mouse, {
_mouseCapture: function(event) {
var o = this.options;
var document = this.document[ 0 ],
o = this.options;
// support: IE9
// IE9 throws an "Unspecified error" accessing document.activeElement from an <iframe>
try {
// Support: IE9+
// If the <body> is blurred, IE will switch windows, see #9520
if ( document.activeElement && document.activeElement.nodeName.toLowerCase() !== "body" ) {
// Blur any element that currently has focus, see #4261
$( document.activeElement ).blur();
}
} catch ( error ) {}
// among others, prevent a drag on a resizable-handle
if (this.helper || o.disabled || $(event.target).closest(".ui-resizable-handle").length > 0) {