Own runtime threads and thin platform/canvas seams

src/platform_apple/apple_platform_services.cpp

@@ -61,6 +61,16 @@ bool AppleDocumentPlatformServices::set_clipboard_text(std::string_view text) co
     return false;
 }
 
+void AppleDocumentPlatformServices::set_virtual_keyboard_visible(bool visible) const
+{
+#if defined(__IOS__)
+    if (bridge_.set_virtual_keyboard_visible)
+        bridge_.set_virtual_keyboard_visible(visible);
+#else
+    (void)visible;
+#endif
+}
+
 void AppleDocumentPlatformServices::pick_image(PickedPathCallback callback) const
 {
     if (family_ == PlatformFamily::ios)
@@ -173,6 +183,26 @@ void AppleDocumentPlatformServices::set_cursor_visible(bool visible) const
 #endif
 }
 
+void AppleDocumentPlatformServices::save_prepared_file(
+    std::string_view path,
+    std::string_view suggested_name,
+    PreparedFileCallback callback) const
+{
+#if defined(__IOS__)
+    if (bridge_.save_prepared_file)
+    {
+        bridge_.save_prepared_file(
+            std::string(path),
+            std::string(suggested_name),
+            std::move(callback));
+    }
+#else
+    (void)path;
+    (void)suggested_name;
+    (void)callback;
+#endif
+}
+
 void AppleDocumentPlatformServices::save_ui_state() const
 {
 #if defined(__OSX__)

src/platform_apple/apple_platform_services.h

@@ -18,9 +18,11 @@ struct AppleDocumentPickerBridge {
     std::function<std::string(std::string_view path)> format_working_directory_path;
     std::function<std::string()> clipboard_text;
     std::function<bool(std::string_view text)> set_clipboard_text;
+    std::function<void(bool visible)> set_virtual_keyboard_visible;
     std::function<void(std::string path)> display_file;
     std::function<void(std::string path)> share_file;
     std::function<void(bool visible)> set_cursor_visible;
+    std::function<void(std::string path, std::string suggested_name, PreparedFileCallback callback)> save_prepared_file;
     std::function<void()> save_ui_state;
 };
 
@@ -43,9 +45,14 @@ public:
     [[nodiscard]] std::string format_working_directory_path(std::string_view path) const;
     [[nodiscard]] std::string clipboard_text() const;
     [[nodiscard]] bool set_clipboard_text(std::string_view text) const;
+    void set_virtual_keyboard_visible(bool visible) const;
     void display_file(std::string_view path) const;
     void share_file(std::string_view path) const;
     void set_cursor_visible(bool visible) const;
+    void save_prepared_file(
+        std::string_view path,
+        std::string_view suggested_name,
+        PreparedFileCallback callback) const;
     void save_ui_state() const;
 
 private: