[GitHub] [cordova] alejo-0204 commented on issue #93: Loading cordova.js in a web worker and use a bluetooth plugin to process in a different thread

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alejo-0204 commented on issue #93: Loading cordova.js in a web worker and use a bluetooth plugin to process in a different thread
URL: https://github.com/apache/cordova/issues/93#issuecomment-479469900
 
 
   Thanks @raphinesse, 
   I found a example of your suggested approach before, when I modify **demo_workers.js** and run the application, works (no warnings), but the problem is that i realize that have to handle all the possibles scenarios and situations, that means a lot of possible failure scenarios and not standard approach. I would like to found a solution that don't involves recreate the DOM and window.
   
   After the below implementation cordova.js show this message:
   
   `cordova.js:1945 Could not find cordova.js script tag. Plugin loading may fail.`
   
   Because it is expecting to get **/cordova.js** when call **document.getElementsByTagName('script');**
   
   And it is necessary to fire the event **deviceready** that means create the logic for  **document.dispatchEvent** `cordova.js:227`
   
   # /www files:
   
   **demo_workers.js**
   ```
   self.window = self;
   self.window.Event = function() {};
   self.window.prompt = function() {};
   self.window.innerHeight = 1;
   self.history = {};
   self.document = {
     readyState: "complete",
     addEventListener: function() {},
     querySelector: function() {},
     getElementsByTagName: function() {
       return [];
     },
     createElement: function() {
       return {
         pathname: "",
         setAttribute: function() {}
       };
     },
     createEvent: function() {
       return {
         initEvent: function() {}
       };
     },
     documentElement: {
       style: {
         transition: ""
       }
     },
     head: {
       children: [],
       appendChild: function(child) {
         importScripts(child.src);
         child.onload();
       }
     },
     body: {
       classList: {
         add: function() {}
       }
     },
     dispatchEvent: () => {}
   };
   
   importScripts("cordova.js");
   importScripts("bluetooth.js");
   
   app.initialize();
   
   onmessage = function(e) {
     app.onMessage(e.data);
   };
   ```
   

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