···

       
10
       
10
       
 
       
  const sortByHierarchy = (a: HTMLElement, b: HTMLElement) => {

     

       
11
       
11
       
 
       
    const x = a.compareDocumentPosition(b);

     

       
12
       
12
       
 
       
    return (

     

       
13
       
13
       
-
       
      (x & 16 /* a contains b */ && -1) ||

     

       
14
       
14
       
-
       
      (x & 8 /* b contains a */ && 1) ||

     

       
15
       
15
       
-
       
      (x & 2 /* b follows a */ && -1) ||

     

       
16
       
16
       
-
       
      (x & 4 /* a follows b */ && 1) ||

     

       
13
       
13
       
+
       
      (x & 16 /* a contains b */ && 1) ||

     

       
14
       
14
       
+
       
      (x & 8 /* b contains a */ && -1) ||

     

       
15
       
15
       
+
       
      (x & 2 /* b follows a */ && 1) ||

     

       
16
       
16
       
+
       
      (x & 4 /* a follows b */ && -1) ||

     

       
17
       
17
       
 
       
      0

     

       
18
       
18
       
 
       
    );

     

       
19
       
19
       
 
       
  };

     
···

       
26
       
26
       
 
       
    function computeHasPriority(): boolean {

     

       
27
       
27
       
 
       
      if (!ref.current) return false;

     

       
28
       
28
       
 
       
      const tempStack = priorityStack.concat(ref.current).sort(sortByHierarchy);

     

       
29
       
29
       
-
       
      return tempStack[tempStack.length - 1] === ref.current;

     

       
29
       
29
       
+
       
      return tempStack[0] === ref.current;

     

       
30
       
30
       
 
       
    }

     

       
31
       
31
       
 
       


     

       
32
       
32
       
 
       
    const isDisabled = !!disabled;