Get list of midi files

[Dan Korneff]

Hey guys,
I could use some pointers with the FileSystem.
I'm trying to use the File Browser to populate an array with a list midi files within a directory.
here's what I'm doing, but it's returning an empty array:

//hold file list
var fileList = [];

const var Browse = Content.getComponent("Browse");

inline function onBrowseControl(component, value)
{
    if(value) //if button clicked
    {
        //open file broswer
        FileSystem.browseForDirectory("", function()
            {
                //push midi list into array 
                fileList.push(FileSystem.findFiles("", "*.mid", false));

            });
    }
	
};

Content.getComponent("Browse").setControlCallback(onBrowseControl);

HiseSnippet 932.3ocsV0uiZbCD2KGaTXaIpQJO.q3ufpqvRa9RJppW.NpPM2ETIMpRQUolc8dXgWajs26BJ5d25SPeV5aPxX6E1kKjSIHUy+v7wuw+73YFuSkhXhRIjHuFuZ8JBx6a8mslqWLbAlxQSFg7tm+YXklHCcpFrdEVoHIHOui9UiBuF0Q10+8KCvLLOlTpBgdsfFSdAMipK0N8jeixXiwIjWQyp38COYRrfOTvD4.eNxOBsBGuDeA4brwsZ9Hu6bZBUKjyzXMQA9LPjrd1BwUbm+ulpnyYDiPezLHPN0ngKnrjoaNqJDxq9zxS9QtS9C7OilP2puLC7cVCgkHplC7psKkpuCk5+4nzXAKwDfOC87pPu5N5ce+YwR5JcoEC29F+Ib3xIECo8pzx4Kp1+Vyen.7fq6lgWRFKAgsHZ+3nniCeTTTmm0LnYPudK.VElRYjPFUoaFbIVZEeAHE9ygu4ur9AWRfnw1.o3JEArrYOtfnGJxVI3fP6VNysbQmxYTNILMmGqoBdnf6LafJEr1wavcLDZVNoSyf22LHDVzz1NMg85QSCmmq0.9XFMdIIw4RgmlUudhUDt6TLWJTWQjkFGCZmsFJmy5N2t6iExQTIIFtAW2tUqi2xu1cJQcicnbmVkqVDlYJNL4qPJWKBwRId8m57lzXWCl1U3QJkmXDU1su022EhmgGXlhzwk5pFmq67Lq70MCZzL3Zq8aO62UYTaSxCwL1bnmp8MR9tso7WkKoyEZxKgrQv6CZDbcP3MMkltWaEAlQj60rowWda.ayyylSjapE13HzMra61c9xZ2hcYnJNJ3S3T8KgREmbYCY+8zPhJRwv+9iIivZroGsPG32JhTSMzwaD4RXfmqisg+HhZoVrx5aw8BPYs058J5mGXKmQTXuuqu6VA8tsCE+6kmrdqv+7lST3KIS3SkD3R0zmSUmIxfvhkfad0Pe5bCX5kHImg06NRyL6tv.j32Y1gY9.WQ0qqNa+qXNWzdmys2z5WHcuu+TpNdw94as8vW354+a9V7pQS+SSSg4Gkjst+3+7Peh3qfJ+tHWS4WbFVKoP8h+44YyfGNiI.S3bBC1Henfv.0JGYjMYlYDdhU3CvpvXeirWgw9aLhxvwRwaicsjl2ktqUCvIt8I4Fv2F.xg8Q11T.meT2HjYh3aiiMohe.399w7iG.le5.v7vC.yiN.LO9.v7jC.ySuULluT444ZQlqMATL8T67JOuS4XnJyVQh9H7XmydB

[d.healey]

Browse for directory returns the selected directory - except in your snippet where you've decide not to return anything in your callback function and then you can search that directory for files.

[Dan Korneff]

@d-healey Thank you so much!

//hold file list
var fileList = [];

const var Browse = Content.getComponent("Browse");

inline function onBrowseControl(component, value)
{
    if(value) //if button clicked
    {
        //open file broswer
        FileSystem.browseForDirectory("", function(dir)
            {
                //push midi list into array
                fileList.push(FileSystem.findFiles(dir, "*.mid", false));

            });
    }
	
};

Content.getComponent("Browse").setControlCallback(onBrowseControl);

[Dan Korneff]

And one last tweak. The above code puts an array of files inside of an array...
This will just populate the array with files:

//hold file list
var fileList = [];

const var Browse = Content.getComponent("Browse");

inline function onBrowseControl(component, value)
{
    if(value) //if button clicked
    {
        //open file broswer
        FileSystem.browseForDirectory("", function(dir)
            {
                //push midi list into array
                local midiFiles = FileSystem.findFiles(dir, "*.mid", false);
                
                for(m in midiFiles)
                {
                    fileList.push(m);
                }

            });
    }
	
};

Content.getComponent("Browse").setControlCallback(onBrowseControl);

[ustk]

@dustbro Then why not just:

fileList = FileSystem.findFiles(dir, "*.mid", false);

Or if you want to keep a local var (if ever you have a good reason)

fileList = midiFiles;

[Dan Korneff]

@ustk said in Get list of midi files:

@dustbro Then why not just:

fileList = FileSystem.findFiles(dir, "*.mid", false);

That works too!
Next question. The array of files are Objects. Tips on converting to string so I can load in the MidiPlayer?
The files in the array looks like:

"File: E:\\Company\\Groove 06 - 155 bpm\\Pattern01.mid"

I'm calling

MIDIPlayer.setFile(fileList[0], 1, 1);

and getting an error:

API Call with undefined parameter 0

I guess technically I just need to remove

File: 

from the file name

[Dan Korneff]

@ustk @d-healey Any tips on using replace() ?
I'm trying to snip the File: part off of the file name.
using:

fileList = fileList.replace("File: ", "");

but I'm getting the error:

Unknown function 'replace'

[d.healey]

replace works on strings, fileList is an array so no replace function there. You'd need to loop through your array of objects and run replace on each one.

[Dan Korneff]

@d-healey here's my attempt:

//hold file list
var fileList = [];
const var formattedNames = [];

const var Browse = Content.getComponent("Browse");

inline function onBrowseControl(component, value)
{
    if(value) //if button clicked
    {
        //open file broswer
        FileSystem.browseForDirectory("", function(dir)
            {
                //push midi list into array
                fileList = FileSystem.findFiles(dir, "*.mid", false);
                
                for (i = 0; i < fileList.length; i++)
                {
                    var newName = fileList[i];
                    newName = newName.replace("File: ", "");
    
                    formattedNames.push(newName);
                }
                
            });
    }
	
};

Content.getComponent("Browse").setControlCallback(onBrowseControl);

getting this error:

function not found
at
 newName = newName.replace("File: ", "");

[d.healey]

filelist is an array of objects. So filelist[i] is an object not a string. Try Console.print(trace(filelist[i])); to see what is contained within your object.

[Dan Korneff]

@d-healey said in Get list of midi files:

Console.print(trace(filelist[i]));

It returns

Interface: undefined

[d.healey]

@dustbro If you're going to copy and paste things that I write you should check that I've written it correctly Your variable is called fileList, not filelist.

[Dan Korneff]

@d-healey said in Get list of midi files:

fileList

I've been sitting at the computer for 13 hours... maybe I need a break.

Now that I'm using variables that actually exist in my project, it returns empty:

Interface: 

Also, thanks for the help.

[d.healey]

What do you get with Console.print(fileList.length);?

[Dan Korneff]

@d-healey 15, which is the amount of files in my test folder

[d.healey]

Try this in place of your loop

for (f in fileList)
{
	Console.print(f.toString(File.FullPath));
}

I also notice you're using some vars, always use local in inline functions, and in on init use reg or const. 99% of the time var should not be used except in paint routines, mouse callbacks, timer callbacks, and occasionally a few other places.

[Dan Korneff]

@d-healey said in Get list of midi files:

Try this in place of your loop

Now we're talking! that returns the file path correctly

[d.healey]

@dustbro Yeah it's late here the objects in your array are all file objects so you have access to all of the File class functions, like toString()

[Dan Korneff]

@d-healey said in Get list of midi files:

99% of the time var should not be used

Thanks for this advice as well.