How to find the current folder through JS COM?

Question

Is there a way to get a reference to the current folder through the JS COM? It doesn't seem as though it can be done with SP.ListOperation. And by current folder, I mean the folder the user is currently "looking in", so to speak, not if they have selected a list item and it happens to be a folder.

I'm thinking I will have to check document.URL to see if there is a RootFolder query parameter, but it would be nice to know if there is a way to get that information directly through the object model.

Answer 1

How to get current Folder client object via CSOM (JavaScript)

function get_currentFolder(OnSuccess,OnError){
    var context = SP.ClientContext.get_current();
    var web = context.get_web();
    var currentFolder = web.getFolderByServerRelativeUrl(decodeURIComponent(ctx.rootFolder));
    context.load(currentFolder); 
    context.executeQueryAsync(
      function() {
        OnSuccess(currentFolder);
      },
      OnError
    );
}


//Usage: print current folder name
get_currentFolder(function(folder){
   console.log('Current folder:' + folder.get_name()); 
},function(sender,args){
    console.log(args.get_message());
});

Note: rootFolder property from ContextInfo structure is used to identify Folder url. ContextInfo structure is available on every page where List View is rendered.

Answer 2

You could probably always sort this out from the URL, but in 2013 you could probably check the ctx.rootFolder property.

And get the last part, which should be the current folder:

var currentFolder = decodeURIComponent(ctx.rootFolder).split("/").pop();

Edit:

Just to make it clear, this is the ctx object created by SharePoint when you for example browse inside a view of a document library. So you don't need to create this ctx object, it should already be present.

Answer 3

You can try this way to get the root folder of the list or library:

var _oList;
function getRootFolder()
{
    _oList = web.get_lists().getById("xxx");
    context.load(_oList , "RootFolder");
    var rootFolder = _oList .get_rootFolder();

    context.executeQueryAsync(OnSucceeded, OnFailed);
}

function OnSucceeded()
{
    var rootFolder = _oList .get_rootFolder();
    var rootFolderUrl = _oList.get_serverRelativeUrl();
}