HeavenStudio/Assets/Plugins/StandaloneFileBrowser/StandaloneFileBrowserLinux.cs

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2022-01-30 12:03:37 +00:00
#if UNITY_STANDALONE_LINUX
using System;
using System.IO;
using System.Runtime.InteropServices;
using UnityEngine;
namespace SFB {
public class StandaloneFileBrowserLinux : IStandaloneFileBrowser {
private static Action<string[]> _openFileCb;
private static Action<string[]> _openFolderCb;
private static Action<string> _saveFileCb;
[UnmanagedFunctionPointer(CallingConvention.StdCall)]
public delegate void AsyncCallback(string path);
[DllImport("StandaloneFileBrowser")]
private static extern void DialogInit();
[DllImport("StandaloneFileBrowser")]
private static extern IntPtr DialogOpenFilePanel(string title, string directory, string extension, bool multiselect);
[DllImport("StandaloneFileBrowser")]
private static extern void DialogOpenFilePanelAsync(string title, string directory, string extension, bool multiselect, AsyncCallback callback);
[DllImport("StandaloneFileBrowser")]
private static extern IntPtr DialogOpenFolderPanel(string title, string directory, bool multiselect);
[DllImport("StandaloneFileBrowser")]
private static extern void DialogOpenFolderPanelAsync(string title, string directory, bool multiselect, AsyncCallback callback);
[DllImport("StandaloneFileBrowser")]
private static extern IntPtr DialogSaveFilePanel(string title, string directory, string defaultName, string extension);
[DllImport("StandaloneFileBrowser")]
private static extern void DialogSaveFilePanelAsync(string title, string directory, string defaultName, string extension, AsyncCallback callback);
public StandaloneFileBrowserLinux()
{
DialogInit();
}
public string[] OpenFilePanel(string title, string directory, ExtensionFilter[] extensions, bool multiselect) {
var paths = Marshal.PtrToStringAnsi(DialogOpenFilePanel(
title,
directory,
GetFilterFromFileExtensionList(extensions),
multiselect));
return paths.Split((char)28);
}
public void OpenFilePanelAsync(string title, string directory, ExtensionFilter[] extensions, bool multiselect, Action<string[]> cb) {
_openFileCb = cb;
DialogOpenFilePanelAsync(
title,
directory,
GetFilterFromFileExtensionList(extensions),
multiselect,
(string result) => { _openFileCb.Invoke(result.Split((char)28)); });
}
public string[] OpenFolderPanel(string title, string directory, bool multiselect) {
var paths = Marshal.PtrToStringAnsi(DialogOpenFolderPanel(
title,
directory,
multiselect));
return paths.Split((char)28);
}
public void OpenFolderPanelAsync(string title, string directory, bool multiselect, Action<string[]> cb) {
_openFolderCb = cb;
DialogOpenFolderPanelAsync(
title,
directory,
multiselect,
(string result) => { _openFolderCb.Invoke(result.Split((char)28)); });
}
public string SaveFilePanel(string title, string directory, string defaultName, ExtensionFilter[] extensions) {
return Marshal.PtrToStringAnsi(DialogSaveFilePanel(
title,
directory,
defaultName,
GetFilterFromFileExtensionList(extensions)));
}
public void SaveFilePanelAsync(string title, string directory, string defaultName, ExtensionFilter[] extensions, Action<string> cb) {
_saveFileCb = cb;
DialogSaveFilePanelAsync(
title,
directory,
defaultName,
GetFilterFromFileExtensionList(extensions),
(string result) => { _saveFileCb.Invoke(result); });
}
private static string GetFilterFromFileExtensionList(ExtensionFilter[] extensions) {
if (extensions == null) {
return "";
}
var filterString = "";
foreach (var filter in extensions) {
filterString += filter.Name + ";";
foreach (var ext in filter.Extensions) {
filterString += ext + ",";
}
filterString = filterString.Remove(filterString.Length - 1);
filterString += "|";
}
filterString = filterString.Remove(filterString.Length - 1);
return filterString;
}
}
}
#endif