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javascriptnode.jsnwjs

New windows not able to acess NWJS modules?


If I create a window using window.open on my NWJS application, it seems that this window cannot acess any nodejs or nwjs module at all. How to I work around it?

I use document.write to write the content of the page, because it will be different according to the context in which the code is running.

    var fs = require("fs");
    var text = fs.readFileSync(myfolder);
text=text.toString();
    var wndo = window.open("about:blank", "", "scrollbars=1,width=300,height=500");
wndo.moveTo(screen.width/2-250,screen.height/2-175);

    wndo.document.write(`<!DOCTYPE html>
<html>
<head>
  <title>JS Coder</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="editor/style.css"/>
</head>

<input  style="display:none;" name="file" id="fileDialog" type="file" onchange="openeditor()" />
<label class="button button1" for="fileDialog">Open</label>


<input style="display:none;" name="filesave" id="filesave" type="file" onchange="saveeditor()" nwsaveas />
<label class="button button1" for="filesave" >Save</label>

 <div id="content" contenteditable="true"></div>

<script src="editor/app.js"></script>
<script type="text/javascript">
  document.getElementById('content').innerHTML = "`+text+`"

</script>

</html>`);

inside app.js there is:

document.getElementById('content').innerHTML = '';



openeditor=function(){


var fileinput = document.querySelector('input[type=file]');
var path = fileinput.value;
path=path.toString()

var fs = require('fs');
fs.readFile(path, 'utf8', function(err, txt) {
  if (err) {
    alert(err)
    return;
  }

  document.getElementById('content').innerHTML=txt
});


}
saveeditor=function(){


var fileinput = document.querySelector('input[id=filesave]');
var path = fileinput.value;

const fs = require("fs")

texto=document.getElementById('content').innerHTML
texto=texto.toString()

    fs.writeFile(path,texto , function (err) {
  if (err) return;
});



}

Is there a way to enable node/nwjs modules in that window? And if not, how do I open a new window in my application which has acess to node/nwjs modules and once open, execute code in it?


Solution

  • The only part of your opened window that isn't static is + text + ... so, you have an almost static HTML page

    Here's something that will work. Create a static page like so:

    <!DOCTYPE html>
    <html>
    <head>
        <title>JS Coder</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>
        <input  style="display:none;" name="file" id="fileDialog" type="file" onchange="openeditor()" />
        <label class="button button1" for="fileDialog">Open</label>
    
        <input style="display:none;" name="filesave" id="filesave" type="file" onchange="saveeditor()" nwsaveas />
        <label class="button button1" for="filesave" >Save</label>
    
        <div id="content" contenteditable="true"></div>
        <script src="editor/app.js"></script>
        <script type="text/javascript">
            function loadText(text) {
                document.getElementById('content').innerHTML = text;
            }
        </script>
    </body>
    </html>
    

    Lets say it's called otherpage.html - it's in the same folder as your "main" page too

    Now, the javascript in your main page is

        var fs = require("fs");
        var text = fs.readFileSync(myfolder);
        text=text.toString();
        var wndo = window.open("otherpage.html", "", "scrollbars=1,width=300,height=500");
        wndo.addEventListener('load', () => {
            wndo.loadText(text);
        });
        wndo.moveTo(screen.width/2-250,screen.height/2-175);
    

    So the main page waits for other page to load, and then calls the other page loadText to load the text