Datepicker: Added additional check to checkExternalClick to work when clicking in another datepicker and removed old fix. Fixes #7686 - infinite loop when onclose event shows a second calendar

(cherry picked from commit af76ad1)

Author: kborchers

ui/jquery.ui.datepicker.js

@@ -636,10 +636,10 @@ $.extend(Datepicker.prototype, {
 			return;
 		var inst = $.datepicker._getInst(input);
 		if ($.datepicker._curInst && $.datepicker._curInst != inst) {
-			if ( $.datepicker._datepickerShowing ) {
-				$.datepicker._triggerOnClose($.datepicker._curInst);
-			}
 			$.datepicker._curInst.dpDiv.stop(true, true);
+			if ( inst && $.datepicker._datepickerShowing ) {
+				$.datepicker._hideDatepicker( $.datepicker._curInst.input[0] );
+			}
 		}
 		var beforeShow = $.datepicker._get(inst, 'beforeShow');
 		var beforeShowSettings = beforeShow ? beforeShow.apply(input, [input, inst]) : {};
@@ -788,14 +788,6 @@ $.extend(Datepicker.prototype, {
 	    return [position.left, position.top];
 	},
 
-	/* Trigger custom callback of onClose. */
-	_triggerOnClose: function(inst) {
-		var onClose = this._get(inst, 'onClose');
-		if (onClose)
-			onClose.apply((inst.input ? inst.input[0] : null),
-						  [(inst.input ? inst.input.val() : ''), inst]);
-	},
-
 	/* Hide the date picker from view.
 	   @param  input  element - the input field attached to the date picker */
 	_hideDatepicker: function(input) {
@@ -816,8 +808,11 @@ $.extend(Datepicker.prototype, {
 					(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
 			if (!showAnim)
 				postProcess();
-			$.datepicker._triggerOnClose(inst);
 			this._datepickerShowing = false;
+			var onClose = this._get(inst, 'onClose');
+			if (onClose)
+				onClose.apply((inst.input ? inst.input[0] : null),
+					[(inst.input ? inst.input.val() : ''), inst]);
 			this._lastInput = null;
 			if (this._inDialog) {
 				this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
@@ -839,12 +834,16 @@ $.extend(Datepicker.prototype, {
 	_checkExternalClick: function(event) {
 		if (!$.datepicker._curInst)
 			return;
-		var $target = $(event.target);
-		if ($target[0].id != $.datepicker._mainDivId &&
+
+		var $target = $(event.target),
+			inst = $.datepicker._getInst($target[0]);
+
+		if ( ( ( $target[0].id != $.datepicker._mainDivId &&
 				$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
 				!$target.hasClass($.datepicker.markerClassName) &&
 				!$target.hasClass($.datepicker._triggerClass) &&
-				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
+				$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI) ) ) ||
+			( $target.hasClass($.datepicker.markerClassName) && $.datepicker._curInst != inst ) )
 			$.datepicker._hideDatepicker();
 	},