--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/default/node_modules/shoestring/src/events/unbind.js	Sat May 31 09:21:51 2025 +0800
@@ -0,0 +1,77 @@
+//>>excludeStart("exclude", pragmas.exclude);
+define([ "shoestring" ], function(){
+//>>excludeEnd("exclude");
+
+	/**
+	 * Unbind a previous bound callback for an event.
+	 *
+	 * @param {string} event The event(s) the callback was bound to..
+	 * @param {function} callback Callback to unbind.
+	 * @return shoestring
+	 * @this shoestring
+	 */
+	shoestring.fn.unbind = function( event, callback ){
+
+		//>>includeStart("development", pragmas.development);
+		if( arguments.length >= 3 || typeof callback === "string" ){
+			shoestring.error( 'off-delegate' );
+		}
+		//>>includeEnd("development");
+
+		var evts = event ? event.split( " " ) : [];
+
+		return this.each(function(){
+			if( !this.shoestringData || !this.shoestringData.events ) {
+				return;
+			}
+
+			if( !evts.length ) {
+				unbindAll.call( this );
+			} else {
+				var split, evt, namespace;
+				for( var i = 0, il = evts.length; i < il; i++ ){
+					split = evts[ i ].split( "." ),
+					evt = split[ 0 ],
+					namespace = split.length > 0 ? split[ 1 ] : null;
+
+					if( evt ) {
+						unbind.call( this, evt, namespace, callback );
+					} else {
+						unbindAll.call( this, namespace, callback );
+					}
+				}
+			}
+		});
+	};
+
+	function unbind( evt, namespace, callback ) {
+		var bound = this.shoestringData.events[ evt ];
+		if( !(bound && bound.length) ) {
+			return;
+		}
+
+		var matched = [], j, jl;
+		for( j = 0, jl = bound.length; j < jl; j++ ) {
+			if( !namespace || namespace === bound[ j ].namespace ) {
+				if( callback === undefined || callback === bound[ j ].originalCallback ) {
+					this.removeEventListener( evt, bound[ j ].callback, false );
+					matched.push( j );
+				}
+			}
+		}
+
+		for( j = 0, jl = matched.length; j < jl; j++ ) {
+			this.shoestringData.events[ evt ].splice( j, 1 );
+		}
+	}
+
+	function unbindAll( namespace, callback ) {
+		for( var evtKey in this.shoestringData.events ) {
+			unbind.call( this, evtKey, namespace, callback );
+		}
+	}
+
+	shoestring.fn.off = shoestring.fn.unbind;
+//>>excludeStart("exclude", pragmas.exclude);
+});
+//>>excludeEnd("exclude");