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.

Get list of midi files

23

1.8k

12.1k

105.0k