Wayland: Require xkbcommon 0.5.0 or greater

The Wayland backend now requires xkbcommon-compose, which was added in
version 0.5.0.  xkbcommon 0.5.0 was released in 2014.

This removes the non-composing fallback path for text input.

(cherry picked from commit 293d19a153)

CMakeLists.txt

@@ -266,7 +266,6 @@ if (_GLFW_WAYLAND)
 
     include(CheckIncludeFiles)
     include(CheckFunctionExists)
-    check_include_files(xkbcommon/xkbcommon-compose.h HAVE_XKBCOMMON_COMPOSE_H)
     check_function_exists(memfd_create HAVE_MEMFD_CREATE)
 
     if (NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")

src/glfw_config.h.in

@@ -53,8 +53,6 @@
 // Define this to 1 to force use of high-performance GPU on hybrid systems
 #cmakedefine _GLFW_USE_HYBRID_HPG
 
-// Define this to 1 if xkbcommon supports the compose key
-#cmakedefine HAVE_XKBCOMMON_COMPOSE_H
 // Define this to 1 if the libc supports memfd_create()
 #cmakedefine HAVE_MEMFD_CREATE
 

src/wl_init.c

@@ -374,12 +374,8 @@ static void keyboardHandleKeymap(void* data,
 {
     struct xkb_keymap* keymap;
     struct xkb_state* state;
-
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
     struct xkb_compose_table* composeTable;
     struct xkb_compose_state* composeState;
-#endif
-
     char* mapStr;
     const char* locale;
 
@@ -427,7 +423,6 @@ static void keyboardHandleKeymap(void* data,
     if (!locale)
         locale = "C";
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
     composeTable =
         xkb_compose_table_new_from_locale(_glfw.wl.xkb.context, locale,
                                           XKB_COMPOSE_COMPILE_NO_FLAGS);
@@ -447,7 +442,6 @@ static void keyboardHandleKeymap(void* data,
         _glfwInputError(GLFW_PLATFORM_ERROR,
                         "Wayland: Failed to create XKB compose table");
     }
-#endif
 
     xkb_keymap_unref(_glfw.wl.xkb.keymap);
     xkb_state_unref(_glfw.wl.xkb.state);
@@ -517,7 +511,6 @@ static int toGLFWKeyCode(uint32_t key)
     return GLFW_KEY_UNKNOWN;
 }
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
 static xkb_keysym_t composeSymbol(xkb_keysym_t sym)
 {
     if (sym == XKB_KEY_NoSymbol || !_glfw.wl.xkb.composeState)
@@ -537,7 +530,6 @@ static xkb_keysym_t composeSymbol(xkb_keysym_t sym)
             return sym;
     }
 }
-#endif
 
 static GLFWbool inputChar(_GLFWwindow* window, uint32_t scancode)
 {
@@ -546,11 +538,7 @@ static GLFWbool inputChar(_GLFWwindow* window, uint32_t scancode)
 
     if (xkb_state_key_get_syms(_glfw.wl.xkb.state, keycode, &keysyms) == 1)
     {
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
         const xkb_keysym_t keysym = composeSymbol(keysyms[0]);
-#else
-        const xkb_keysym_t keysym = keysyms[0];
-#endif
         const uint32_t codepoint = _glfwKeySym2Unicode(keysym);
         if (codepoint != GLFW_INVALID_CODEPOINT)
         {
@@ -1120,7 +1108,6 @@ int _glfwPlatformInit(void)
     _glfw.wl.xkb.state_key_get_layout = (PFN_xkb_state_key_get_layout)
         _glfw_dlsym(_glfw.wl.xkb.handle, "xkb_state_key_get_layout");
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
     _glfw.wl.xkb.compose_table_new_from_locale = (PFN_xkb_compose_table_new_from_locale)
         _glfw_dlsym(_glfw.wl.xkb.handle, "xkb_compose_table_new_from_locale");
     _glfw.wl.xkb.compose_table_unref = (PFN_xkb_compose_table_unref)
@@ -1135,7 +1122,6 @@ int _glfwPlatformInit(void)
         _glfw_dlsym(_glfw.wl.xkb.handle, "xkb_compose_state_get_status");
     _glfw.wl.xkb.compose_state_get_one_sym = (PFN_xkb_compose_state_get_one_sym)
         _glfw_dlsym(_glfw.wl.xkb.handle, "xkb_compose_state_get_one_sym");
-#endif
 
     _glfw.wl.display = wl_display_connect(NULL);
     if (!_glfw.wl.display)
@@ -1234,10 +1220,8 @@ void _glfwPlatformTerminate(void)
         _glfw.wl.egl.handle = NULL;
     }
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
     if (_glfw.wl.xkb.composeState)
         xkb_compose_state_unref(_glfw.wl.xkb.composeState);
-#endif
     if (_glfw.wl.xkb.keymap)
         xkb_keymap_unref(_glfw.wl.xkb.keymap);
     if (_glfw.wl.xkb.state)

src/wl_platform.h

@@ -26,9 +26,7 @@
 
 #include <wayland-client.h>
 #include <xkbcommon/xkbcommon.h>
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
 #include <xkbcommon/xkbcommon-compose.h>
-#endif
 #include <dlfcn.h>
 
 typedef VkFlags VkWaylandSurfaceCreateFlagsKHR;
@@ -133,7 +131,6 @@ typedef xkb_layout_index_t (* PFN_xkb_state_key_get_layout)(struct xkb_state*,xk
 #define xkb_state_serialize_mods _glfw.wl.xkb.state_serialize_mods
 #define xkb_state_key_get_layout _glfw.wl.xkb.state_key_get_layout
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
 typedef struct xkb_compose_table* (* PFN_xkb_compose_table_new_from_locale)(struct xkb_context*, const char*, enum xkb_compose_compile_flags);
 typedef void (* PFN_xkb_compose_table_unref)(struct xkb_compose_table*);
 typedef struct xkb_compose_state* (* PFN_xkb_compose_state_new)(struct xkb_compose_table*, enum xkb_compose_state_flags);
@@ -148,7 +145,6 @@ typedef xkb_keysym_t (* PFN_xkb_compose_state_get_one_sym)(struct xkb_compose_st
 #define xkb_compose_state_feed _glfw.wl.xkb.compose_state_feed
 #define xkb_compose_state_get_status _glfw.wl.xkb.compose_state_get_status
 #define xkb_compose_state_get_one_sym _glfw.wl.xkb.compose_state_get_one_sym
-#endif
 
 #define _GLFW_DECORATION_WIDTH 4
 #define _GLFW_DECORATION_TOP 24
@@ -273,10 +269,7 @@ typedef struct _GLFWlibraryWayland
         struct xkb_context*     context;
         struct xkb_keymap*      keymap;
         struct xkb_state*       state;
-
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
         struct xkb_compose_state* composeState;
-#endif
 
         xkb_mod_mask_t          controlMask;
         xkb_mod_mask_t          altMask;
@@ -300,7 +293,6 @@ typedef struct _GLFWlibraryWayland
         PFN_xkb_state_serialize_mods state_serialize_mods;
         PFN_xkb_state_key_get_layout state_key_get_layout;
 
-#ifdef HAVE_XKBCOMMON_COMPOSE_H
         PFN_xkb_compose_table_new_from_locale compose_table_new_from_locale;
         PFN_xkb_compose_table_unref compose_table_unref;
         PFN_xkb_compose_state_new compose_state_new;
@@ -308,7 +300,6 @@ typedef struct _GLFWlibraryWayland
         PFN_xkb_compose_state_feed compose_state_feed;
         PFN_xkb_compose_state_get_status compose_state_get_status;
         PFN_xkb_compose_state_get_one_sym compose_state_get_one_sym;
-#endif
     } xkb;
 
     _GLFWwindow*                pointerFocus;