Fix launch of Cocoa example due to missing MainMenu.nib in bundle app

examples/cocoa/CMakeLists.txt

@@ -1,6 +1,34 @@
 
 set(SRCROOT ${PROJECT_SOURCE_DIR}/examples/cocoa)
 
+# Usage: compile_xib(INPUT path/to/file.xib OUTPUT path/to/file.nib)
+function(compile_xib)
+    cmake_parse_arguments(THIS "" "INPUT;OUTPUT" "" ${ARGN})
+    if (NOT THIS_INPUT)
+        message(FATAL_ERROR "Missing required argument INPUT in call to compile_xib()")
+    endif()
+
+    if (NOT THIS_OUTPUT)
+        message(FATAL_ERROR "Missing required argument OUTPUT in call to compile_xib()")
+    endif()
+
+    if (NOT DEFINED IBTOOL)
+        find_program(IBTOOL ibtool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin")
+    endif()
+    if(NOT IBTOOL)
+        message(FATAL_ERROR "ibtool is required to compile .xib files but wasn't found.")
+    endif()
+
+    # Default args taken from Xcode 9 when it generates a nib from a xib
+    set(DEFAULT_ARGS --errors --warnings --notices --module cocoa --auto-activate-custom-fonts --target-device mac --minimum-deployment-target ${CMAKE_OSX_DEPLOYMENT_TARGET} --output-format human-readable-text)
+
+    add_custom_command(OUTPUT "${THIS_OUTPUT}"
+        COMMAND "${IBTOOL}" ${DEFAULT_ARGS} "${THIS_INPUT}" --compile "${THIS_OUTPUT}"
+        DEPENDS "${THIS_INPUT}"
+        COMMENT "Generating ${THIS_OUTPUT}"
+        VERBATIM)
+endfunction()
+
 # all source files
 set(SRC ${SRCROOT}/CocoaAppDelegate.h
         ${SRCROOT}/CocoaAppDelegate.mm
@@ -8,8 +36,7 @@ set(SRC ${SRCROOT}/CocoaAppDelegate.h
         ${SRCROOT}/NSString+stdstring.mm
         ${SRCROOT}/main.m)
 
-# all XIB files
-set(XIBS MainMenu)
+compile_xib(INPUT "${SRCROOT}/MainMenu.xib" OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/MainMenu.nib")
 
 # all resource files
 set(RESOURCES ${SRCROOT}/resources/logo.png
@@ -18,50 +45,17 @@ set(RESOURCES ${SRCROOT}/resources/logo.png
               ${SRCROOT}/resources/blue.png
               ${SRCROOT}/resources/green.png
               ${SRCROOT}/resources/red.png
-              ${SRCROOT}/resources/Credits.rtf)
-
-# define the cocoa target and customize it
-add_executable(cocoa MACOSX_BUNDLE ${SRC} ${RESOURCES})
+              ${SRCROOT}/resources/Credits.rtf
+              ${CMAKE_CURRENT_BINARY_DIR}/MainMenu.nib)
 set_source_files_properties(${RESOURCES} PROPERTIES
                             MACOSX_PACKAGE_LOCATION Resources)
+
+# define the cocoa target and customize it
+sfml_add_example(cocoa
+                 SOURCES ${SRC}
+                 BUNDLE_RESOURCES ${RESOURCES}
+                 DEPENDS sfml-system sfml-window sfml-graphics)
 set_target_properties(cocoa PROPERTIES
+                      MACOSX_BUNDLE TRUE
                       MACOSX_BUNDLE_INFO_PLIST ${SRCROOT}/resources/Cocoa-Info.plist)
-target_link_libraries(cocoa "-framework Cocoa -framework Foundation"
-                            sfml-system sfml-window sfml-graphics)
-
-# set the target's folder (for IDEs that support it, e.g. Visual Studio)
-set_target_properties(cocoa PROPERTIES FOLDER "Examples")
-
-# compile XIB files
-find_program(IBTOOL ibtool HINTS "/usr/bin" "${OSX_DEVELOPER_ROOT}/usr/bin")
-if(${IBTOOL} STREQUAL "IBTOOL-NOTFOUND")
-  message(FATAL_ERROR "ibtool is required to compile .xib files but wasn't found.")
-endif()
-set(RESOURCE_PATH "cocoa.app/Contents/Resources")
-set(XIB_OUTPUT_PATH "${RESOURCE_PATH}/")
-set(XIB_INPUT_PATH "${SRCROOT}/")
-foreach(XIB ${XIBS})
-    add_custom_command(TARGET cocoa
-                       POST_BUILD
-                       COMMAND ${IBTOOL} --errors
-                                         --output-format human-readable-text
-                                         --compile ${XIB_OUTPUT_PATH}/${XIB}.nib
-                                         ${XIB_INPUT_PATH}/${XIB}.xib
-                       COMMENT "Compiling ${XIB}.xib")
-                       # deactivated options: --warnings --notices
-endforeach()
-
-# add install rule
-install(TARGETS cocoa
-        BUNDLE DESTINATION ${INSTALL_MISC_DIR}/examples/cocoa
-        COMPONENT examples)
-
-#
-# define the cocoa target
-# sfml_add_example is not compatible with application bundles !
-#
-#sfml_add_example(cocoa
-#                 SOURCES ${SRC}
-#                 DEPENDS sfml-system sfml-window sfml-graphics)
-#
-
+target_link_libraries(cocoa "-framework Cocoa -framework Foundation")