Merge pull request #322 from kborchers/bug_5665

Datepicker: Added checks for the disabled option. Fixed #5665 - Datepicker: Disabled parameter doesn't work(cherry picked from commit 4bdbab9)

ui/jquery.ui.datepicker.js

@@ -105,7 +105,8 @@ function Datepicker() {
 		altFormat: '', // The date format to use for the alternate field
 		constrainInput: true, // The input is constrained by the current date format
 		showButtonPanel: false, // True to show button panel, false to not show it
-		autoSize: false // True to size the input for the date format, false to leave as is
+		autoSize: false, // True to size the input for the date format, false to leave as is
+		disabled: false // The initial disabled state
 	};
 	$.extend(this._defaults, this.regional['']);
 	this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
@@ -197,6 +198,10 @@ $.extend(Datepicker.prototype, {
 			});
 		this._autoSize(inst);
 		$.data(target, PROP_NAME, inst);
+		//If disabled option is true, disable the datepicker once it has been attached to the input (see ticket #5665)
+		if( inst.settings.disabled ) {
+			this._disableDatepicker( target );
+		}
 	},
 
 	/* Make attachments based on settings. */
@@ -276,6 +281,10 @@ $.extend(Datepicker.prototype, {
 		this._setDate(inst, this._getDefaultDate(inst), true);
 		this._updateDatepicker(inst);
 		this._updateAlternate(inst);
+		//If disabled option is true, disable the datepicker before showing it (see ticket #5665)
+		if( inst.settings.disabled ) {
+			this._disableDatepicker( target );
+		}
 		inst.dpDiv.show();
 	},