Integrate dialog export and Apple service teams

src/platform_apple/apple_platform_services.h

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+#pragma once
+
+#include "platform_api/platform_policy.h"
+#include "platform_api/platform_services.h"
+
+#include <functional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace pp::platform::apple {
+
+struct AppleDocumentPickerBridge {
+    std::function<void(PickedPathCallback callback)> pick_image;
+    std::function<void(std::vector<std::string> file_types, PickedPathCallback callback)> pick_file;
+    std::function<void(std::vector<std::string> file_types, PickedPathCallback callback)> pick_save_file;
+    std::function<void(PickedPathCallback callback)> pick_directory;
+    std::function<std::string(std::string_view path)> format_working_directory_path;
+};
+
+class AppleDocumentPlatformServices {
+public:
+    explicit AppleDocumentPlatformServices(
+        PlatformFamily family,
+        AppleDocumentPickerBridge bridge = {});
+
+    [[nodiscard]] std::vector<std::string> document_browse_roots(
+        std::string_view work_path,
+        std::string_view data_path) const;
+
+    void pick_image(PickedPathCallback callback) const;
+    void pick_file(std::vector<std::string> file_types, PickedPathCallback callback) const;
+    void pick_save_file(std::vector<std::string> file_types, PickedPathCallback callback) const;
+    void pick_directory(PickedPathCallback callback) const;
+
+    [[nodiscard]] bool supports_working_directory_picker() const;
+    [[nodiscard]] std::string format_working_directory_path(std::string_view path) const;
+
+private:
+    PlatformFamily family_;
+    AppleDocumentPickerBridge bridge_;
+};
+
+}