js/jquery/src/jquery/css/addGetHookIf.js

   1 define(function() {
   2
   3 function addGetHookIf( conditionFn, hookFn ) {
   4         // Define the hook, we'll check on the first run if it's really needed.
   5         return {
   6                 get: function() {
   7                         var condition = conditionFn();
   8
   9                         if ( condition == null ) {
  10                                 // The test was not ready at this point; screw the hook this time
  11                                 // but check again when needed next time.
  12                                 return;
  13                         }
  14
  15                         if ( condition ) {
  16                                 // Hook not needed (or it's not possible to use it due to missing dependency),
  17                                 // remove it.
  18                                 // Since there are no other hooks for marginRight, remove the whole object.
  19                                 delete this.get;
  20                                 return;
  21                         }
  22
  23                         // Hook needed; redefine it so that the support test is not executed again.
  24
  25                         return (this.get = hookFn).apply( this, arguments );
  26                 }
  27         };
  28 }
  29
  30 return addGetHookIf;
  31
  32 });