Restore state from cookie on recreate?

[richsonn]

Hi Anton,

I hope you're having a good summer. I have followed your advice from a previous post and am using the .recreate method to redraw the tree after setting up a new array:

[AlexKunin]

1. Add ID to every node:

[richsonn]

Alex,

Thank you for the quick reply. We already have taken the steps you mention. The cookie state is restored no problem when we first initialize the tree using the 'var = new ...' syntax:

var tree5_project = new COOLjsTreePRO("tree5_project", TREE_NODES, TREE_FORMAT);
tree5_project.init();
RedrawAllTrees();

The problem occurs when we try to use .recreate after updating the nodes. The nodes we introduce are collapsed, but they should be expanded, according to the cookie on the client.

Thanks,

Rich

[AlexKunin]

Oh, I see.

Then there is no way to restore state. And I think it's correct because you're restoring state of newly created tree - it has no state, it's brand new.

But you can add {format:{expanded:true}} to nodes while generating NEW_TREE_NODES structure.

[richsonn]

Alex,

Ok, so I understand that .recreate will not trigger the internal cookie restore method.

Our original intent was to take an updated tree array structure and apply it to the tree. Previously we've been reloading the entire frame but this is slow and one of the other frames can send the updated tree array structure to the tree frame more quickly than forcing a reload of the tree frame (which requires a round-trip to the server with all the overhead that entails).

We'd like the cookie to still apply, as it does on a full reload of the page. Can we somehow delete the entire tree and start over with a 'var xxx= new COOLjsTreePRO()...init...redraw()' sequence? If that makes sense, what would we delete from the DOM and the javascript stack to accomplish that?

Thanks for hanging with us on this issue!

Rich

[AlexKunin]

Latest yet unreleased version has static create() method which triggers state restoration procedure:

[richsonn]

Please let us know if this is still under active development, as we're keen to implement the static create() method. Thanks!

[AlexKunin]

We're going to release version 3.0 soon, it was rewritten from scratch, has many new features and quite extensible architecture. Watch for announces.

[richsonn]

Thanks, Alex. I'm glad to hear a new version will be out soon!


-Rich