From 17a9e34fbc179373dc9bc370164fa4690870b295 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Camilla=20L=C3=B6wy?= Date: Wed, 29 Dec 2021 23:45:06 +0100 Subject: [PATCH] Wayland: Implement key name support --- README.md | 1 + src/wl_init.c | 4 ++++ src/wl_platform.h | 7 ++++++ src/wl_window.c | 55 +++++++++++++++++++++++++++++++++++++++++++---- 4 files changed, 63 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index ae36e304..06108a86 100644 --- a/README.md +++ b/README.md @@ -266,6 +266,7 @@ information on what to include when reporting a bug. undefined behavior (#1986) - [X11] Bugfix: Dynamic loading on OpenBSD failed due to soname differences - [Wayland] Added dynamic loading of all Wayland libraries + - [Wayland] Added support for key names via xkbcommon - [Wayland] Removed support for `wl_shell` (#1443) - [Wayland] Bugfix: The `GLFW_HAND_CURSOR` shape used the wrong image (#1432) - [Wayland] Bugfix: `CLOCK_MONOTONIC` was not correctly enabled diff --git a/src/wl_init.c b/src/wl_init.c index 3d28bddc..bd365fdf 100644 --- a/src/wl_init.c +++ b/src/wl_init.c @@ -1290,6 +1290,8 @@ int _glfwInitWayland(void) _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_mod_get_index"); _glfw.wl.xkb.keymap_key_repeats = (PFN_xkb_keymap_key_repeats) _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_key_repeats"); + _glfw.wl.xkb.keymap_key_get_syms_by_level = (PFN_xkb_keymap_key_get_syms_by_level) + _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_keymap_key_get_syms_by_level"); _glfw.wl.xkb.state_new = (PFN_xkb_state_new) _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_new"); _glfw.wl.xkb.state_unref = (PFN_xkb_state_unref) @@ -1300,6 +1302,8 @@ int _glfwInitWayland(void) _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_update_mask"); _glfw.wl.xkb.state_serialize_mods = (PFN_xkb_state_serialize_mods) _glfwPlatformGetModuleSymbol(_glfw.wl.xkb.handle, "xkb_state_serialize_mods"); + _glfw.wl.xkb.state_key_get_layout = (PFN_xkb_state_key_get_layout) + _glfwPlatformGetModuleSymbol(_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) diff --git a/src/wl_platform.h b/src/wl_platform.h index 1e36a794..e29f41b4 100644 --- a/src/wl_platform.h +++ b/src/wl_platform.h @@ -163,22 +163,26 @@ typedef struct xkb_keymap* (* PFN_xkb_keymap_new_from_string)(struct xkb_context typedef void (* PFN_xkb_keymap_unref)(struct xkb_keymap*); typedef xkb_mod_index_t (* PFN_xkb_keymap_mod_get_index)(struct xkb_keymap*, const char*); typedef int (* PFN_xkb_keymap_key_repeats)(struct xkb_keymap*, xkb_keycode_t); +typedef int (* PFN_xkb_keymap_key_get_syms_by_level)(struct xkb_keymap*,xkb_keycode_t,xkb_layout_index_t,xkb_level_index_t,const xkb_keysym_t**); typedef struct xkb_state* (* PFN_xkb_state_new)(struct xkb_keymap*); typedef void (* PFN_xkb_state_unref)(struct xkb_state*); typedef int (* PFN_xkb_state_key_get_syms)(struct xkb_state*, xkb_keycode_t, const xkb_keysym_t**); typedef enum xkb_state_component (* PFN_xkb_state_update_mask)(struct xkb_state*, xkb_mod_mask_t, xkb_mod_mask_t, xkb_mod_mask_t, xkb_layout_index_t, xkb_layout_index_t, xkb_layout_index_t); typedef xkb_mod_mask_t (* PFN_xkb_state_serialize_mods)(struct xkb_state*, enum xkb_state_component); +typedef xkb_layout_index_t (* PFN_xkb_state_key_get_layout)(struct xkb_state*,xkb_keycode_t); #define xkb_context_new _glfw.wl.xkb.context_new #define xkb_context_unref _glfw.wl.xkb.context_unref #define xkb_keymap_new_from_string _glfw.wl.xkb.keymap_new_from_string #define xkb_keymap_unref _glfw.wl.xkb.keymap_unref #define xkb_keymap_mod_get_index _glfw.wl.xkb.keymap_mod_get_index #define xkb_keymap_key_repeats _glfw.wl.xkb.keymap_key_repeats +#define xkb_keymap_key_get_syms_by_level _glfw.wl.xkb.keymap_key_get_syms_by_level #define xkb_state_new _glfw.wl.xkb.state_new #define xkb_state_unref _glfw.wl.xkb.state_unref #define xkb_state_key_get_syms _glfw.wl.xkb.state_key_get_syms #define xkb_state_update_mask _glfw.wl.xkb.state_update_mask #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); @@ -311,6 +315,7 @@ typedef struct _GLFWlibraryWayland int timerfd; short int keycodes[256]; short int scancodes[GLFW_KEY_LAST + 1]; + char keynames[GLFW_KEY_LAST + 1][5]; struct { void* handle; @@ -336,11 +341,13 @@ typedef struct _GLFWlibraryWayland PFN_xkb_keymap_unref keymap_unref; PFN_xkb_keymap_mod_get_index keymap_mod_get_index; PFN_xkb_keymap_key_repeats keymap_key_repeats; + PFN_xkb_keymap_key_get_syms_by_level keymap_key_get_syms_by_level; PFN_xkb_state_new state_new; PFN_xkb_state_unref state_unref; PFN_xkb_state_key_get_syms state_key_get_syms; PFN_xkb_state_update_mask state_update_mask; 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; diff --git a/src/wl_window.c b/src/wl_window.c index eab108ee..1ed4b079 100644 --- a/src/wl_window.c +++ b/src/wl_window.c @@ -1193,10 +1193,57 @@ void _glfwSetCursorModeWayland(_GLFWwindow* window, int mode) const char* _glfwGetScancodeNameWayland(int scancode) { - // TODO - _glfwInputError(GLFW_FEATURE_UNIMPLEMENTED, - "Wayland: Key names not yet implemented"); - return NULL; + if (scancode < 0 || scancode > 255 || + _glfw.wl.keycodes[scancode] == GLFW_KEY_UNKNOWN) + { + _glfwInputError(GLFW_INVALID_VALUE, + "Wayland: Invalid scancode %i", + scancode); + return NULL; + } + + const int key = _glfw.wl.keycodes[scancode]; + const xkb_keycode_t keycode = scancode + 8; + const xkb_layout_index_t layout = + xkb_state_key_get_layout(_glfw.wl.xkb.state, keycode); + if (layout == XKB_LAYOUT_INVALID) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve layout for key name"); + return NULL; + } + + const xkb_keysym_t* keysyms = NULL; + xkb_keymap_key_get_syms_by_level(_glfw.wl.xkb.keymap, + keycode, + layout, + 0, + &keysyms); + if (keysyms == NULL) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve keysym for key name"); + return NULL; + } + + const long codepoint = _glfwKeySym2Unicode(keysyms[0]); + if (codepoint == -1) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to retrieve codepoint for key name"); + return NULL; + } + + const size_t count = _glfwEncodeUTF8(_glfw.wl.keynames[key], (unsigned int) codepoint); + if (count == 0) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "Wayland: Failed to encode codepoint for key name"); + return NULL; + } + + _glfw.wl.keynames[key][count] = '\0'; + return _glfw.wl.keynames[key]; } int _glfwGetKeyScancodeWayland(int key)