Fix copy item functionality and improve path handling

android/src/main/java/com/nitrofs/File+Extensions.kt

@@ -0,0 +1,14 @@
+package com.nitrofs
+
+import com.margelo.nitro.nitrofs.NitroFileStat
+import java.io.File
+
+fun File.toNitroFileStat(): NitroFileStat {
+    return NitroFileStat(
+        size = length().toDouble(),
+        isFile = isFile,
+        isDirectory = isDirectory,
+        ctime = lastModified().toDouble(),
+        mtime = lastModified().toDouble()
+    )
+}

android/src/main/java/com/nitrofs/HybridNitroFS.kt

@@ -158,9 +158,9 @@ class HybridNitroFS: HybridNitroFSSpec() {
         }
     }
 
-    override fun basename(path: String, ext: String?): String {
+    override fun basename(path: String): String {
         try {
-            return nitroFsImpl.basename(path, ext)
+            return nitroFsImpl.basename(path)
         } catch (e: Exception) {
             Log.e(TAG, "Error while calling basename(...): ${e.message}")
             throw Error(e)

android/src/main/java/com/nitrofs/NitroFSImpl.kt

@@ -2,6 +2,8 @@ package com.nitrofs
 
 import android.content.Context
 import android.os.Environment
+import android.provider.DocumentsContract
+import android.provider.OpenableColumns
 import android.util.Log
 import android.webkit.MimeTypeMap
 import com.facebook.react.bridge.ReactApplicationContext
@@ -18,14 +20,32 @@ class NitroFSImpl(val context: ReactApplicationContext) {
     private val nitroFileUploader: NitroFileUploader = NitroFileUploader()
     private val fileDownloader: FileDownloader = FileDownloader()
 
+    private val contentResolver = context.contentResolver
+
     fun exists(path: String): Boolean {
-        val dir = File(path)
-        return dir.exists()
+        val resolved = path.toResolvedPath() ?: return false
+        return when(resolved) {
+            is ResolvedPath.FilePath -> resolved.file.exists()
+            is ResolvedPath.Content -> {
+                contentResolver.query(
+                    resolved.uri,
+                    arrayOf("_id"),
+                    null,
+                    null,
+                    null
+                )?.use { cursor -> cursor.moveToFirst()  } ?: false
+            }
+        }
     }
 
     fun unlink(path: String): Boolean {
-        val file = File(path)
-        return file.deleteRecursively()
+        val resolved = path.toResolvedPath() ?: return false
+        return when(resolved) {
+            is ResolvedPath.FilePath -> resolved.file.deleteRecursively()
+            is ResolvedPath.Content -> {
+                contentResolver.delete(resolved.uri, null, null) > 0
+            }
+        }
     }
 
     fun writeFile(
@@ -129,27 +149,72 @@ class NitroFSImpl(val context: ReactApplicationContext) {
         srcPath: String,
         destPath: String
     ) {
-        val file = File(srcPath)
-        val dest = File(destPath)
-        file.copyTo(dest)
+        val src = srcPath.toResolvedPath() ?: return
+        val dest = destPath.toResolvedPath() ?: return
+
+        try {
+            src.openInputStream(context)?.use { input ->
+                dest.openOutputStream(context)?.use { output ->
+                    input.copyTo(output, DEFAULT_BUFFER_SIZE)
+                }
+            }
+        } catch (e: Exception) {
+            throw Error("Failed to copy file: ${e.message}")
+        }
     }
 
 
     fun mkdir(path: String): Boolean {
-        val file = File(path)
-        return file.mkdirs()
+        val resolved = path.toResolvedPath() ?: return false
+        return when(resolved) {
+            is ResolvedPath.FilePath -> resolved.file.mkdirs()
+            is ResolvedPath.Content -> throw Error("Cannot create directory from content URI: $path")
+        }
     }
 
     fun stat(path: String): NitroFileStat {
-        val file = File(path)
-        val stat = NitroFileStat(
-            size = file.length().toDouble(),
-            isFile = file.isFile,
-            isDirectory = file.isDirectory,
-            ctime = file.lastModified().toDouble(),
-            mtime = file.lastModified().toDouble()
-        )
-        return stat
+        val resolved = path.toResolvedPath() ?: throw Error("Invalid path: $path")
+        return when(resolved) {
+            is ResolvedPath.FilePath -> resolved.file.toNitroFileStat()
+            is ResolvedPath.Content -> {
+                val uri = resolved.uri
+                val projection = arrayOf(
+                    DocumentsContract.Document.COLUMN_SIZE,
+                    DocumentsContract.Document.COLUMN_MIME_TYPE,
+                    DocumentsContract.Document.COLUMN_LAST_MODIFIED,
+                    DocumentsContract.Document.MIME_TYPE_DIR
+                )
+                contentResolver.query(uri, projection, null, null, null)?.use { cursor ->
+                    if (!cursor.moveToFirst()) {
+                        throw Error("Unable to stat content uri (no row): $path")
+                    }
+
+                    fun getString(col: String): String? {
+                        val idx = cursor.getColumnIndex(col)
+                        return if (idx >= 0 && !cursor.isNull(idx)) cursor.getString(idx) else null
+                    }
+
+                    fun getLong(col: String): Long? {
+                        val idx = cursor.getColumnIndex(col)
+                        return if (idx >= 0 && !cursor.isNull(idx)) cursor.getLong(idx) else null
+                    }
+
+                    val size       = getLong(DocumentsContract.Document.COLUMN_SIZE) ?: 0L
+                    val mime       = getString(DocumentsContract.Document.COLUMN_MIME_TYPE) ?: contentResolver.getType(uri)
+                    val isDirectory      = mime == DocumentsContract.Document.MIME_TYPE_DIR
+                    val isFile = !isDirectory
+                    val lastModified = getLong(DocumentsContract.Document.COLUMN_LAST_MODIFIED) ?: 0L
+
+                    NitroFileStat(
+                        size = size.toDouble(),
+                        isFile = isFile,
+                        isDirectory = isDirectory,
+                        ctime = lastModified.toDouble(),
+                        mtime = lastModified.toDouble()
+                    )
+                } ?: throw Error("Unable to stat content uri (query failed): $path")
+            }
+        }
     }
 
     fun readdir(path: String): Array<NitroFile> {
@@ -199,14 +264,45 @@ class NitroFSImpl(val context: ReactApplicationContext) {
         return file.parent ?: ""
     }
 
-    fun basename(path: String, ext: String?): String {
-        val file = File(path)
-        return file.nameWithoutExtension
+    fun basename(path: String): String {
+        val resolved = path.toResolvedPath() ?: throw Error("Invalid path: $path")
+        return when(resolved) {
+            is ResolvedPath.FilePath -> resolved.file.name
+            is ResolvedPath.Content -> {
+                val uri = resolved.uri
+                val fileName = contentResolver.query(
+                    uri, null, null, null, null
+                )?.use { cursor ->
+                    if (cursor.moveToFirst()) {
+                        val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+                        if (nameIndex != -1) {
+                            cursor.getString(nameIndex)
+                        } else {
+                            ""
+                        }
+                    } else {
+                        ""
+                    }
+                } ?: ""
+                fileName
+            }
+        }
     }
 
     fun extname(path: String): String {
-        val file = File(path)
-        return file.extension
+        val resolved = path.toResolvedPath() ?: throw Error("Invalid path: $path")
+
+        return when(resolved){
+            is ResolvedPath.FilePath -> resolved.file.extension
+            is ResolvedPath.Content -> {
+                val mimeType: String? = contentResolver.getType(resolved.uri)
+                if (mimeType != null) {
+                    MimeTypeMap.getSingleton().getExtensionFromMimeType(mimeType) ?: ""
+                } else {
+                    ""
+                }
+            }
+        }
     }
 
     fun getDocumentDir(): String {

android/src/main/java/com/nitrofs/ResolvedPath.kt

@@ -0,0 +1,57 @@
+package com.nitrofs
+
+import android.content.ContentResolver
+import android.content.Context
+import android.net.Uri
+import java.io.File
+import androidx.core.net.toUri
+import java.io.InputStream
+import java.io.OutputStream
+
+sealed class ResolvedPath {
+    data class Content(val uri: Uri) : ResolvedPath()
+    data class FilePath(val file: File) : ResolvedPath()
+}
+
+fun String.toResolvedPath(): ResolvedPath? {
+    return when {
+        startsWith("content://") || startsWith("file://") ->
+            this.toUri().toResolvedPath()
+
+        else -> ResolvedPath.FilePath(File(this))
+    }
+}
+
+fun Uri.toResolvedPath(): ResolvedPath? {
+    return when (scheme) {
+        ContentResolver.SCHEME_CONTENT ->
+            ResolvedPath.Content(this)
+
+        ContentResolver.SCHEME_FILE -> {
+            val p = path ?: return null
+            ResolvedPath.FilePath(File(p))
+        }
+
+        else -> null
+    }
+}
+
+fun ResolvedPath.openInputStream(context: Context): InputStream? {
+    return when (this) {
+        is ResolvedPath.Content -> context.contentResolver.openInputStream(uri)
+        is ResolvedPath.FilePath -> if (file.exists()) file.inputStream() else null
+    }
+}
+
+fun ResolvedPath.openOutputStream(context: Context, append: Boolean = false): OutputStream? {
+    return when (this) {
+        is ResolvedPath.Content -> {
+            val mode = if (append) "wa" else "w"
+            context.contentResolver.openOutputStream(uri, mode)
+        }
+        is ResolvedPath.FilePath -> {
+            file.parentFile?.mkdirs()
+            file.outputStream()
+        }
+    }
+}

example/ios/Podfile.lock

@@ -8,6 +8,36 @@ PODS:
   - hermes-engine (0.81.0):
     - hermes-engine/Pre-built (= 0.81.0)
   - hermes-engine/Pre-built (0.81.0)
+  - NitroDocumentPicker (1.2.0):
+    - boost
+    - DoubleConversion
+    - fast_float
+    - fmt
+    - glog
+    - hermes-engine
+    - NitroModules
+    - RCT-Folly
+    - RCT-Folly/Fabric
+    - RCTRequired
+    - RCTTypeSafety
+    - React-callinvoker
+    - React-Core
+    - React-debug
+    - React-Fabric
+    - React-featureflags
+    - React-graphics
+    - React-ImageManager
+    - React-jsi
+    - React-NativeModulesApple
+    - React-RCTFabric
+    - React-renderercss
+    - React-rendererdebug
+    - React-utils
+    - ReactCodegen
+    - ReactCommon/turbomodule/bridging
+    - ReactCommon/turbomodule/core
+    - SocketRocket
+    - Yoga
   - NitroFS (0.7.0):
     - boost
     - DoubleConversion
@@ -2380,6 +2410,7 @@ DEPENDENCIES:
   - fmt (from `../../node_modules/react-native/third-party-podspecs/fmt.podspec`)
   - glog (from `../../node_modules/react-native/third-party-podspecs/glog.podspec`)
   - hermes-engine (from `../../node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec`)
+  - NitroDocumentPicker (from `../../node_modules/react-native-nitro-document-picker`)
   - NitroFS (from `../..`)
   - NitroModules (from `../../node_modules/react-native-nitro-modules`)
   - RCT-Folly (from `../../node_modules/react-native/third-party-podspecs/RCT-Folly.podspec`)
@@ -2470,6 +2501,8 @@ EXTERNAL SOURCES:
   hermes-engine:
     :podspec: "../../node_modules/react-native/sdks/hermes-engine/hermes-engine.podspec"
     :tag: hermes-2025-07-07-RNv0.81.0-e0fc67142ec0763c6b6153ca2bf96df815539782
+  NitroDocumentPicker:
+    :path: "../../node_modules/react-native-nitro-document-picker"
   NitroFS:
     :path: "../.."
   NitroModules:
@@ -2613,6 +2646,7 @@ SPEC CHECKSUMS:
   fmt: a40bb5bd0294ea969aaaba240a927bd33d878cdd
   glog: 5683914934d5b6e4240e497e0f4a3b42d1854183
   hermes-engine: e7491a2038f2618c8cd444ed411a6deb350a3742
+  NitroDocumentPicker: 3f7adcb535ed9ac19a92a65c7228da559227ffdb
   NitroFS: 5d5ad45cd2351ea71bbdc7f5bb45857fc1219e08
   NitroModules: edd5870885e786b0f2119836cf47e8b28d5b9c1f
   RCT-Folly: 846fda9475e61ec7bcbf8a3fe81edfcaeb090669

example/package.json

@@ -6,13 +6,14 @@
         "android": "react-native run-android",
         "ios": "react-native run-ios --simulator='iPhone 16'",
         "lint": "eslint .",
-        "start": "react-native start --reset-cache --client-logs",
+        "start": "react-native start --client-logs --reset-cache",
         "test": "jest",
         "pod": "bundle install && bundle exec pod install --project-directory=ios"
     },
     "dependencies": {
         "react": "19.1.0",
         "react-native": "0.81.0",
+        "react-native-nitro-document-picker": "^1.2.0",
         "react-native-nitro-modules": "^0.31.5",
         "react-native-safe-area-context": "^5.6.2"
     },