Add file dialogs

CMakeLists.txt

@@ -255,6 +255,7 @@ define_sdl_subsystem(Haptic)
 define_sdl_subsystem(Hidapi)
 define_sdl_subsystem(Power)
 define_sdl_subsystem(Sensor)
+define_sdl_subsystem(Dialog)
 
 cmake_dependent_option(SDL_FRAMEWORK "Build SDL libraries as Apple Framework" OFF "APPLE" OFF)
 if(SDL_FRAMEWORK)
@@ -2411,7 +2412,7 @@ elseif(HAIKU)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/core/haiku/*.cc")
 
   CheckPTHREAD()
-  sdl_link_dependency(base LIBS root be media game device textencoding)
+  sdl_link_dependency(base LIBS root be media game device textencoding tracker)
 
 elseif(RISCOS)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/misc/riscos/*.c")
@@ -2754,6 +2755,24 @@ elseif(N3DS)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/file/n3ds/*.c")
 endif()
 
+if (SDL_DIALOG)
+  if(UNIX AND NOT APPLE AND NOT RISCOS AND NOT HAIKU)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/unix/SDL_unixdialog.c)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/unix/SDL_portaldialog.c)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/unix/SDL_zenitydialog.c)
+    set(HAVE_SDL_DIALOG TRUE)
+  elseif(HAIKU)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/haiku/SDL_haikudialog.cc)
+    set(HAVE_SDL_DIALOG TRUE)
+  elseif(WINDOWS AND NOT WINDOWS_STORE)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/windows/SDL_windowsdialog.c)
+    set(HAVE_SDL_DIALOG TRUE)
+  elseif(APPLE)
+    sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/cocoa/SDL_cocoadialog.m)
+    set(HAVE_SDL_DIALOG TRUE)
+  endif()
+endif()
+
 # Platform-independent options
 
 if(SDL_VIDEO)
@@ -2809,6 +2828,10 @@ if(NOT HAVE_SDL_MISC)
   set(SDL_MISC_DUMMY 1)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/misc/dummy/*.c")
 endif()
+if(NOT HAVE_SDL_DIALOG)
+  set(SDL_DIALOG_DUMMY 1)
+  sdl_sources(${SDL3_SOURCE_DIR}/src/dialog/dummy/SDL_dummydialog.c)
+endif()
 if(NOT HAVE_CAMERA)
   set(SDL_CAMERA_DRIVER_DUMMY 1)
   sdl_glob_sources("${SDL3_SOURCE_DIR}/src/camera/dummy/*.c")