如何使用旧版 javascript 库作为 Angular 服务的范围依赖项? [英] How do I use a legacy javascript library as a scoped dependency of an Angular service?

问题描述

具体来说，我正在使用一个约 800 行的 SCORM API 包装器库，以促进与 LMS 的通信.作者不是用Angular写的.一个传统的、原始的 js 文件 (index.js) 被包裹在它上面，我包含了两者的片段，以了解这里使用的结构.

Specifically, I am working with an ~800 line SCORM API wrapper library that facilitates communication with an LMS. The author did not write it in Angular. A legacy, vanilla js file(index.js) has been wrapped over top of it I'm including a snippet of both to give an idea of the structure being used here.

SCORM = {                                           //Define the SCORM object
    version:    null,                               //Store SCORM version.
    handleCompletionStatus: true,                   //Whether or not the wrapper should automatically handle the initial completion status
    handleExitMode: true,                           //Whether or not the wrapper should automatically handle the exit mode
    API:        { handle: null,
                  isFound: false }                  //Create API child object


};
SCORM.API.get = function(){ //implementation};
SCORM.API.set = function(){ //implementation};

最重要的是在全局范围内执行的旧版 javascript 文件.

On top of this is a legacy javascript file that executes in global scope.

index.js

var scorm = SCORM;
var interval;
var channel;
function init(){
  scorm.version 
}
function get(params){
    var values;
    values = getFromLMS(params); 
    return values;
}
function set(param, value){
    return scorm.set(param, value);
    return callSucceeded;
}

我正在用 Angular 编写一个全新的应用程序，但我想在我的架构中利用一些现有的外部库.我真的很想将 index.js 的功能公开为 Angular 服务，而不必完全重写它.

I am writing a greenfield app in Angular, but I would like to leverage some existing external libraries in my architecture. I would really like to expose index.js' functionality as an Angular service without having to completely rewrite it.

如果我给你上面提到的两个 javascript 文件和一个具有以下结构的新 services.js 文件

If I were to give you the two javascript files mentioned above and a new services.js file that had the following structure

'use strict';

var learnerServices = angular.module('learnerServices', []);

learnerServices.factory('learner-service' [
    function(){

        });
    }
]);

如何将 index.js 中的get"和set"函数注入学习者服务的 $scope 中?

how would you inject the "get" and "set" functions from index.js into the $scope of the learner-service?

推荐答案

希望我正确解释了您的问题...

Hopefully I interpreted your question correctly...

'use strict';
 var learnerServices = angular.module('learnerServices', []);

 learnerServices.factory('scormService' [
   function() {

    var scorm = SCORM;
    var interval;
    var channel;
    function init(){
      scorm.version 
    }
    function get(params){
      var values;
      values = getFromLMS(params); 
      return values;
    }
    function set(param, value){
      return scorm.set(param, value);
      return callSucceeded;
    }

   return  {
     scorm: scorm,
     interval: interval,
     channel: channel,
     init: init,
     get: get,
     set: set
   }
  });
]);

learnerServices.factory('learnerService' ['scormService'
  function(scormService){
    scormService.get('some param');
  });

]);

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