feat: additional picker options

example/tests/benchmark.tsx

@@ -445,7 +445,10 @@ const styles = StyleSheet.create({
 
 // tbd: playground
 setTimeout(async () => {
-  const files = await showOpenFilePicker()
+  const files = await showOpenFilePicker({
+    startIn: 'desktop',
+    types: [{ description: 'PDF files', accept: { 'text/plain': ['.txt'] } }],
+  })
 
   if (!files[0]) {
     console.log('No file')

packages/react-native-fast-io/ios/HybridFileSystem.swift

@@ -6,6 +6,7 @@
 //
 
 import Foundation
+import UniformTypeIdentifiers
 import NitroModules
 import FastIOPrivate
 
@@ -17,7 +18,7 @@ class HybridFileSystem : NSObject, UIDocumentPickerDelegate, HybridFileSystemSpe
     return HybridInputStream(stream: stream)
   }
 
-  func getFileMetadata(path: String) throws -> Metadata {
+  func getMetadata(path: String) throws -> Metadata {
     let attributes = try FileManager.default.attributesOfItem(atPath: path)
     let fileURL = URL(fileURLWithPath: path)
 
@@ -30,20 +31,56 @@ class HybridFileSystem : NSObject, UIDocumentPickerDelegate, HybridFileSystemSpe
     )
   }
 
+  func getWellKnownDirectoryPath(directory: WellKnownDirectory) throws -> String {
+    let url = switch directory {
+    case .desktop:
+      FileManager.default.urls(for: .desktopDirectory, in: .userDomainMask).first
+    case .documents:
+      FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first
+    case .downloads:
+      FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first
+    case .music:
+      FileManager.default.urls(for: .musicDirectory, in: .userDomainMask).first
+    case .pictures:
+      FileManager.default.urls(for: .picturesDirectory, in: .userDomainMask).first
+    case .videos:
+      FileManager.default.urls(for: .moviesDirectory, in: .userDomainMask).first
+    }
+
+    guard let url else {
+      throw RuntimeError.error(withMessage: "Directory '\(directory)' is not available")
+    }
+
+    return url.path
+  }
+
   private var filePicker: (promise: Promise<[String]>, vc: UIDocumentPickerViewController)?
-  func showOpenFilePicker() throws -> Promise<[String]> {
+  func showOpenFilePicker(options: NativeFilePickerOptions?) throws -> Promise<[String]> {
     if filePicker != nil {
       return Promise.rejected(withError: RuntimeError.error(withMessage: "File picker already open"))
     }
 
     let promise = Promise<[String]>()
 
     DispatchQueue.main.async {
+      let utTypes: [UTType] = options?.extensions?
+        .compactMap { ext in
+          let cleanExt = ext.hasPrefix(".") ? String(ext.dropFirst()) : ext
+          return UTType(filenameExtension: cleanExt)
+        } ?? [.item]
+
+
       let documentPicker = UIDocumentPickerViewController(
-        forOpeningContentTypes: [.item],
+        forOpeningContentTypes: utTypes,
         asCopy: true
       )
       documentPicker.delegate = self
+
+      documentPicker.allowsMultipleSelection = options?.multiple ?? false
+
+      if let startIn = options?.startIn {
+        documentPicker.directoryURL = URL(fileURLWithPath: startIn, isDirectory: true)
+      }
 
       guard let vc = RCTUtilsWrapper.getPresentedViewController() else {
         promise.reject(withError: RuntimeError.error(withMessage: "Cannot present file picker"))

packages/react-native-fast-io/nitrogen/generated/ios/FastIO-Swift-Cxx-Bridge.hpp

@@ -26,6 +26,8 @@ namespace margelo::nitro::fastio { class HybridPassThroughStreamSpec; }
 namespace margelo::nitro::fastio { class HybridWebSocketManagerSpec; }
 // Forward declaration of `HybridWebSocketSpec` to properly resolve imports.
 namespace margelo::nitro::fastio { class HybridWebSocketSpec; }
+// Forward declaration of `NativeFilePickerOptions` to properly resolve imports.
+namespace margelo::nitro::fastio { struct NativeFilePickerOptions; }
 
 // Forward declarations of Swift defined types
 // Forward declaration of `HybridFileSystemSpecCxx` to properly resolve imports.
@@ -51,12 +53,14 @@ namespace FastIO { class HybridWebSocketSpecCxx; }
 #include "HybridPassThroughStreamSpec.hpp"
 #include "HybridWebSocketManagerSpec.hpp"
 #include "HybridWebSocketSpec.hpp"
+#include "NativeFilePickerOptions.hpp"
 #include <NitroModules/ArrayBuffer.hpp>
 #include <NitroModules/ArrayBufferHolder.hpp>
 #include <NitroModules/PromiseHolder.hpp>
 #include <functional>
 #include <future>
 #include <memory>
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -94,6 +98,42 @@ namespace margelo::nitro::fastio::bridge::swift {
     return PromiseHolder<std::vector<std::string>>();
   }
 
+  // pragma MARK: std::optional<bool>
+  /**
+   * Specialized version of `std::optional<bool>`.
+   */
+  using std__optional_bool_ = std::optional<bool>;
+  inline std::optional<bool> create_std__optional_bool_(const bool& value) {
+    return std::optional<bool>(value);
+  }
+
+  // pragma MARK: std::optional<std::string>
+  /**
+   * Specialized version of `std::optional<std::string>`.
+   */
+  using std__optional_std__string_ = std::optional<std::string>;
+  inline std::optional<std::string> create_std__optional_std__string_(const std::string& value) {
+    return std::optional<std::string>(value);
+  }
+
+  // pragma MARK: std::optional<std::vector<std::string>>
+  /**
+   * Specialized version of `std::optional<std::vector<std::string>>`.
+   */
+  using std__optional_std__vector_std__string__ = std::optional<std::vector<std::string>>;
+  inline std::optional<std::vector<std::string>> create_std__optional_std__vector_std__string__(const std::vector<std::string>& value) {
+    return std::optional<std::vector<std::string>>(value);
+  }
+
+  // pragma MARK: std::optional<NativeFilePickerOptions>
+  /**
+   * Specialized version of `std::optional<NativeFilePickerOptions>`.
+   */
+  using std__optional_NativeFilePickerOptions_ = std::optional<NativeFilePickerOptions>;
+  inline std::optional<NativeFilePickerOptions> create_std__optional_NativeFilePickerOptions_(const NativeFilePickerOptions& value) {
+    return std::optional<NativeFilePickerOptions>(value);
+  }
+
   // pragma MARK: std::shared_ptr<margelo::nitro::fastio::HybridFileSystemSpec>
   /**
    * Specialized version of `std::shared_ptr<margelo::nitro::fastio::HybridFileSystemSpec>`.

packages/react-native-fast-io/nitrogen/generated/ios/FastIO-Swift-Cxx-Umbrella.hpp

@@ -26,10 +26,14 @@ namespace margelo::nitro::fastio { class HybridWebSocketManagerSpec; }
 namespace margelo::nitro::fastio { class HybridWebSocketSpec; }
 // Forward declaration of `Metadata` to properly resolve imports.
 namespace margelo::nitro::fastio { struct Metadata; }
+// Forward declaration of `NativeFilePickerOptions` to properly resolve imports.
+namespace margelo::nitro::fastio { struct NativeFilePickerOptions; }
 // Forward declaration of `RequestMethod` to properly resolve imports.
 namespace margelo::nitro::fastio { enum class RequestMethod; }
 // Forward declaration of `RequestOptions` to properly resolve imports.
 namespace margelo::nitro::fastio { struct RequestOptions; }
+// Forward declaration of `WellKnownDirectory` to properly resolve imports.
+namespace margelo::nitro::fastio { enum class WellKnownDirectory; }
 
 // Include C++ defined types
 #include "HybridFileSystemSpec.hpp"
@@ -40,12 +44,15 @@ namespace margelo::nitro::fastio { struct RequestOptions; }
 #include "HybridWebSocketManagerSpec.hpp"
 #include "HybridWebSocketSpec.hpp"
 #include "Metadata.hpp"
+#include "NativeFilePickerOptions.hpp"
 #include "RequestMethod.hpp"
 #include "RequestOptions.hpp"
+#include "WellKnownDirectory.hpp"
 #include <NitroModules/ArrayBuffer.hpp>
 #include <functional>
 #include <future>
 #include <memory>
+#include <optional>
 #include <string>
 #include <vector>
 

packages/react-native-fast-io/nitrogen/generated/ios/c++/HybridFileSystemSpecSwift.hpp

@@ -16,14 +16,21 @@ namespace FastIO { class HybridFileSystemSpecCxx; }
 namespace margelo::nitro::fastio { class HybridInputStreamSpec; }
 // Forward declaration of `Metadata` to properly resolve imports.
 namespace margelo::nitro::fastio { struct Metadata; }
+// Forward declaration of `WellKnownDirectory` to properly resolve imports.
+namespace margelo::nitro::fastio { enum class WellKnownDirectory; }
+// Forward declaration of `NativeFilePickerOptions` to properly resolve imports.
+namespace margelo::nitro::fastio { struct NativeFilePickerOptions; }
 
 #include <memory>
 #include "HybridInputStreamSpec.hpp"
 #include <string>
 #include "Metadata.hpp"
+#include "WellKnownDirectory.hpp"
 #include <future>
 #include <vector>
 #include <NitroModules/PromiseHolder.hpp>
+#include <optional>
+#include "NativeFilePickerOptions.hpp"
 
 #if __has_include(<NitroModules/HybridContext.hpp>)
 #include <NitroModules/HybridContext.hpp>
@@ -72,12 +79,16 @@ namespace margelo::nitro::fastio {
       auto __result = _swiftPart.createInputStream(path);
       return __result;
     }
-    inline Metadata getFileMetadata(const std::string& path) override {
-      auto __result = _swiftPart.getFileMetadata(path);
+    inline Metadata getMetadata(const std::string& path) override {
+      auto __result = _swiftPart.getMetadata(path);
       return __result;
     }
-    inline std::future<std::vector<std::string>> showOpenFilePicker() override {
-      auto __result = _swiftPart.showOpenFilePicker();
+    inline std::string getWellKnownDirectoryPath(WellKnownDirectory directory) override {
+      auto __result = _swiftPart.getWellKnownDirectoryPath(static_cast<int>(directory));
+      return __result;
+    }
+    inline std::future<std::vector<std::string>> showOpenFilePicker(const std::optional<NativeFilePickerOptions>& options) override {
+      auto __result = _swiftPart.showOpenFilePicker(options);
       return __result.getFuture();
     }
 

packages/react-native-fast-io/nitrogen/generated/ios/swift/HybridFileSystemSpec.swift

@@ -33,6 +33,7 @@ public protocol HybridFileSystemSpec: AnyObject, HybridObjectSpec {
 
   // Methods
   func createInputStream(path: String) throws -> (any HybridInputStreamSpec)
-  func getFileMetadata(path: String) throws -> Metadata
-  func showOpenFilePicker() throws -> Promise<[String]>
+  func getMetadata(path: String) throws -> Metadata
+  func getWellKnownDirectoryPath(directory: WellKnownDirectory) throws -> String
+  func showOpenFilePicker(options: NativeFilePickerOptions?) throws -> Promise<[String]>
 }

packages/react-native-fast-io/nitrogen/generated/ios/swift/HybridFileSystemSpecCxx.swift

@@ -114,9 +114,9 @@ public class HybridFileSystemSpecCxx {
   }
 
   @inline(__always)
-  public func getFileMetadata(path: std.string) -> Metadata {
+  public func getMetadata(path: std.string) -> Metadata {
     do {
-      let __result = try self.__implementation.getFileMetadata(path: String(path))
+      let __result = try self.__implementation.getMetadata(path: String(path))
       return __result
     } catch {
       let __message = "\(error.localizedDescription)"
@@ -125,9 +125,26 @@ public class HybridFileSystemSpecCxx {
   }
 
   @inline(__always)
-  public func showOpenFilePicker() -> bridge.PromiseHolder_std__vector_std__string__ {
+  public func getWellKnownDirectoryPath(directory: Int32) -> std.string {
     do {
-      let __result = try self.__implementation.showOpenFilePicker()
+      let __result = try self.__implementation.getWellKnownDirectoryPath(directory: margelo.nitro.fastio.WellKnownDirectory(rawValue: directory)!)
+      return std.string(__result)
+    } catch {
+      let __message = "\(error.localizedDescription)"
+      fatalError("Swift errors can currently not be propagated to C++! See https://github.com/swiftlang/swift/issues/75290 (Error: \(__message))")
+    }
+  }
+
+  @inline(__always)
+  public func showOpenFilePicker(options: bridge.std__optional_NativeFilePickerOptions_) -> bridge.PromiseHolder_std__vector_std__string__ {
+    do {
+      let __result = try self.__implementation.showOpenFilePicker(options: { () -> NativeFilePickerOptions? in
+        if let __unwrapped = options.value {
+          return __unwrapped
+        } else {
+          return nil
+        }
+      }())
       return { () -> bridge.PromiseHolder_std__vector_std__string__ in
         let __promiseHolder = bridge.create_PromiseHolder_std__vector_std__string__()
         __result

packages/react-native-fast-io/nitrogen/generated/ios/swift/NativeFilePickerOptions.swift

@@ -0,0 +1,117 @@
+///
+/// NativeFilePickerOptions.swift
+/// This file was generated by nitrogen. DO NOT MODIFY THIS FILE.
+/// https://github.com/mrousavy/nitro
+/// Copyright © 2024 Marc Rousavy @ Margelo
+///
+
+import NitroModules
+
+/**
+ * Represents an instance of `NativeFilePickerOptions`, backed by a C++ struct.
+ */
+public typealias NativeFilePickerOptions = margelo.nitro.fastio.NativeFilePickerOptions
+
+public extension NativeFilePickerOptions {
+  private typealias bridge = margelo.nitro.fastio.bridge.swift
+
+  /**
+   * Create a new instance of `NativeFilePickerOptions`.
+   */
+  init(multiple: Bool?, startIn: String?, extensions: [String]?) {
+    self.init({ () -> bridge.std__optional_bool_ in
+      if let __unwrappedValue = multiple {
+        return bridge.create_std__optional_bool_(__unwrappedValue)
+      } else {
+        return .init()
+      }
+    }(), { () -> bridge.std__optional_std__string_ in
+      if let __unwrappedValue = startIn {
+        return bridge.create_std__optional_std__string_(std.string(__unwrappedValue))
+      } else {
+        return .init()
+      }
+    }(), { () -> bridge.std__optional_std__vector_std__string__ in
+      if let __unwrappedValue = extensions {
+        return bridge.create_std__optional_std__vector_std__string__({ () -> bridge.std__vector_std__string_ in
+          var __vector = bridge.create_std__vector_std__string_(__unwrappedValue.count)
+          for __item in __unwrappedValue {
+            __vector.push_back(std.string(__item))
+          }
+          return __vector
+        }())
+      } else {
+        return .init()
+      }
+    }())
+  }
+
+  var multiple: Bool? {
+    @inline(__always)
+    get {
+      return self.__multiple.value
+    }
+    @inline(__always)
+    set {
+      self.__multiple = { () -> bridge.std__optional_bool_ in
+        if let __unwrappedValue = newValue {
+          return bridge.create_std__optional_bool_(__unwrappedValue)
+        } else {
+          return .init()
+        }
+      }()
+    }
+  }
+
+  var startIn: String? {
+    @inline(__always)
+    get {
+      return { () -> String? in
+        if let __unwrapped = self.__startIn.value {
+          return String(__unwrapped)
+        } else {
+          return nil
+        }
+      }()
+    }
+    @inline(__always)
+    set {
+      self.__startIn = { () -> bridge.std__optional_std__string_ in
+        if let __unwrappedValue = newValue {
+          return bridge.create_std__optional_std__string_(std.string(__unwrappedValue))
+        } else {
+          return .init()
+        }
+      }()
+    }
+  }
+
+  var extensions: [String]? {
+    @inline(__always)
+    get {
+      return { () -> [String]? in
+        if let __unwrapped = self.__extensions.value {
+          return __unwrapped.map({ __item in String(__item) })
+        } else {
+          return nil
+        }
+      }()
+    }
+    @inline(__always)
+    set {
+      self.__extensions = { () -> bridge.std__optional_std__vector_std__string__ in
+        if let __unwrappedValue = newValue {
+          return bridge.create_std__optional_std__vector_std__string__({ () -> bridge.std__vector_std__string_ in
+            var __vector = bridge.create_std__vector_std__string_(__unwrappedValue.count)
+            for __item in __unwrappedValue {
+              __vector.push_back(std.string(__item))
+            }
+            return __vector
+          }())
+        } else {
+          return .init()
+        }
+      }()
+    }
+  }
+}