toloframework/tpl/require.js

/**********************************************************************
 require( 'require' )
 -----------------------------------------------------------------------
 @example

 var Path = require("node://path");  // Only in NodeJS/NW.js environment.
 var Button = require("tfw.button");

 **********************************************************************/

window.require = function() {
  var mocks = {};
  var modules = {};
  var definitions = {};
  var nodejs_require = typeof window.require === 'function' ? window.require : null;

  var f = function(id, body) {
    var mock = mocks[id];
    if( mock ) return mock;
    
    if( id.substr( 0, 7 ) == 'node://' ) {
      // Calling for a NodeJS module.
      if( !nodejs_require ) {
        throw Error( "[require] NodeJS is not available to load module `" + id + "`!" );
      }
      return nodejs_require( id.substr( 7 ) );
    }

    if( typeof body === 'function' ) {
      definitions[id] = body;
      return;
    }
    var mod;
    body = definitions[id];
    if (typeof body === 'undefined') {
      var err = new Error("Required module is missing: " + id);
      console.error(err.stack);
      throw err;
    }
    mod = modules[id];
    if (typeof mod === 'undefined') {
      mod = {exports: {}};
      var exports = mod.exports;
      body(f, mod, exports);
      modules[id] = mod.exports;
      mod = mod.exports;
    }
    return mod;
  };

  f.mock = function( moduleName, module ) {
    mocks[moduleName] = module;
  };
  
  return f;
}();