0.6.0 - "Unable to get render view in Show" on Window.open

[AndryBray]

Hello, I have updated to the last version 0.6.0 and my app is not working as before (0.5.0).

In my app I have 2 shortcuts. When I click a shortcut, a new window will be opened (with a remote url).

This is what I do and where I get the error:
"Uncaught Error: Unable to get render view in Show", source: window_bindings.js (214)

var url = 'http://192.168.1.1/...and so on.',
var path = 'a_unique_path';


if(typeof global.applications[path] != 'undefined' && global.applications[path] != null) 
{
   global.applications[path].show();
}
else {
    var wp = {
            frame : true,
            toolbar: true,
            width: 900,
            height: 750,
            show: false
    };
    var app = gui.Window.open(url, wp);
    global.applicationLocks[path] = true; //a global lock to avoid multiple windows
       //--->here I get the error
    app.on('loaded', function(){
        //--> here the script goes, but doesn't show the window.
    });
}

To see the window I have to click another time over the shortcut and it seams to work because if the window is still opened, the script will call just the .show() method.

[rogerwang]

Hello. I'm not very sure how to reproduce this. Can you please provide a full case?

[AndryBray]

I'm sorry but the full app it's too big. I can post the method where I get the problem.You can call this method passing the shortcut (DOM reference with a "data-path" attribute )

Just for info: I tried to delete the "wp" config in "gui.Window.open(url, wp);" and the window is opening.
Could it be a "show: false" param problem?

function openApplication(shortcut) {
    //shortcut is the DOM node of icon in a toolbar like window (the first window)

    //a little buffer for fast clicks
    if(clickBuffer != null)
        clearTimeout(clickBuffer);

    var path = shortcut.getAttribute('data-path');

    //global.applications is the stack of running apps (windows) for global access
    if(typeof global.applications[path] != 'undefined' && global.applications[path] != null) {
        //show again if it was hidden/yet launched
        global.applications[path].show();
    } 
    else {
        //check if any lock for process end waiting
        if(typeof global.applicationLocks[path] != 'undefined' && global.applicationLocks[path] === true) {
            //stop the action to wait lock releasing
            console.log('app locked... return');
            return false;
        }

        var url = appsEntrypointUrl + path + '/index.html';
        //loading params to set for window
        var wp = {
            frame : true,
            toolbar: true,
            width: 900,
            height: 750,
            show: false
        };

        var app = gui.Window.open(url, wp);
        app.path = path;
        console.log(app);

        //insert lock for current app
        global.applicationLocks[path] = true;

        app.on('loaded', function(){
            console.log('app loaded');
            //adding close listener
            this.on('close', function() {
                console.log('app close');

                var deletingPath = this.path;
                //here we will save the windows coordinates, size , ...
                this.hide();
                //saving (todo)....

                //closing
                this.close(true);

                //set up a little delay to wait for the end of process (before to let open it again)
                setTimeout(function() {
                    global.applicationLocks[deletingPath] = false;
                    //reset reference
                    global.applications[deletingPath] = null;
                }, 500);
            });

            //map app to global var
            global.applications[path] = this;

            // prevent default behavior from changing page on dropped file
            // to do dynamic behavior per app
            this.window.ondragover = function(e) { e.preventDefault(); return false };
            this.window.ondrop = function(e) { e.preventDefault(); return false };
        });

        app.show();
    } 
}

[AndryBray]

I can confirm if I change the "show" param from false to true the window is opening. I think it's a problem if you start with an hidden window... am I wrong?

How can I add listeners before to "show" method?

So I changed "show" from false to true, deleted the app.show() at the end and it works, but I get the error
"Uncaught ReferenceError: require is not defined"
in the new window console.

[AndryBray]

It seems that everytime I open the console I get this error at the end of the console
"Uncaught ReferenceError: require is not defined"
(anonymous function)

[rogerwang]

I'm trying to reproduce it with the following code but it works:

<html>
<head>
<title>nwgui</title>
<script>
var nwgui = require('nw.gui');
    var wp = {
            frame : true,
            toolbar: true,
            width: 900,
            height: 750,
            show: false
    };
var win = nwgui.Window.open('http://www.google.com', wp);
win.on('loaded', function(){
  console.log("win loaded");
  this.on('close', function() {
          console.log('app close');
          });
});
</script>
</head>
<body>
</body>
</html>

[AndryBray]

I forgot to tell you that I'm testing it on MacOS 10.8.4.

How can you open the window if the "show" is false and you don't call the win.show() ?

[AndryBray]

About the showing problem I have fixed it moving the win.show() method inside the "loaded" callback like that

app.on('loaded', function(){
  app.show();
});

It's strange it was working on previous versions of nodewebkit.

Now seems to work well but when I open the dev tool window I get the error:
"Uncaught ReferenceError: require is not defined", source: (1)

Do I open a new issue for this?

[Mithgol]

Now seems to work well but when I open the dev tool window I get the error:
"Uncaught ReferenceError: require is not defined", source: (1)

Do I open a new issue for this?

You probably should. As far as I can tell, the above code fragments (that you provided as test cases for your current issue) do not contain any require, and thus the two issues are probably not related to each other.

[AndryBray]

Yes, I didn't paste the require snippet because it was just a part of code... of course in my real app there is the "require" code. I'm going to open a new ticket. Thank you

[Subash]

I am also randomly getting this error.

[tommoor]

Please reopen if this is still an issue in the latest build.

[darshan-craft]

+1 to that.. Even I am facing the same issue. I am using node webkit version 0.12.0-alpha2 on Mac OS X