diff options
Diffstat (limited to 'src/libsystemd-terminal/idev-keyboard.c')
| -rw-r--r-- | src/libsystemd-terminal/idev-keyboard.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/libsystemd-terminal/idev-keyboard.c b/src/libsystemd-terminal/idev-keyboard.c index 8dc1c20b14..068478978d 100644 --- a/src/libsystemd-terminal/idev-keyboard.c +++ b/src/libsystemd-terminal/idev-keyboard.c @@ -25,6 +25,7 @@ #include <systemd/sd-bus.h> #include <systemd/sd-event.h> #include <xkbcommon/xkbcommon.h> +#include <xkbcommon/xkbcommon-compose.h> #include "bus-util.h" #include "hashmap.h" #include "idev.h" @@ -32,10 +33,16 @@ #include "macro.h" #include "util.h" +typedef struct kbdtbl kbdtbl; typedef struct kbdmap kbdmap; typedef struct kbdctx kbdctx; typedef struct idev_keyboard idev_keyboard; +struct kbdtbl { + unsigned long ref; + struct xkb_compose_table *xkb_compose_table; +}; + struct kbdmap { unsigned long ref; struct xkb_keymap *xkb_keymap; @@ -48,10 +55,12 @@ struct kbdctx { idev_context *context; struct xkb_context *xkb_context; struct kbdmap *kbdmap; + struct kbdtbl *kbdtbl; sd_bus_slot *slot_locale_props_changed; sd_bus_slot *slot_locale_get_all; + char *locale_lang; char *locale_x11_model; char *locale_x11_layout; char *locale_x11_variant; @@ -66,8 +75,10 @@ struct idev_keyboard { idev_device device; kbdctx *kbdctx; kbdmap *kbdmap; + kbdtbl *kbdtbl; struct xkb_state *xkb_state; + struct xkb_compose_state *xkb_compose; usec_t repeat_delay; usec_t repeat_rate; @@ -91,6 +102,60 @@ struct idev_keyboard { static const idev_device_vtable keyboard_vtable; static int keyboard_update_kbdmap(idev_keyboard *k); +static int keyboard_update_kbdtbl(idev_keyboard *k); + +/* + * Keyboard Compose Tables + */ + +static kbdtbl *kbdtbl_ref(kbdtbl *kt) { + if (kt) { + assert_return(kt->ref > 0, NULL); + ++kt->ref; + } + + return kt; +} + +static kbdtbl *kbdtbl_unref(kbdtbl *kt) { + if (!kt) + return NULL; + + assert_return(kt->ref > 0, NULL); + + if (--kt->ref > 0) + return NULL; + + xkb_compose_table_unref(kt->xkb_compose_table); + free(kt); + + return 0; +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(kbdtbl*, kbdtbl_unref); + +static int kbdtbl_new_from_locale(kbdtbl **out, kbdctx *kc, const char *locale) { + _cleanup_(kbdtbl_unrefp) kbdtbl *kt = NULL; + + assert_return(out, -EINVAL); + assert_return(locale, -EINVAL); + + kt = new0(kbdtbl, 1); + if (!kt) + return -ENOMEM; + + kt->ref = 1; + + kt->xkb_compose_table = xkb_compose_table_new_from_locale(kc->xkb_context, + locale, + XKB_COMPOSE_COMPILE_NO_FLAGS); + if (!kt->xkb_compose_table) + return errno > 0 ? -errno : -EFAULT; + + *out = kt; + kt = NULL; + return 0; +} /* * Keyboard Keymaps @@ -191,6 +256,49 @@ static int kbdmap_new_from_names(kbdmap **out, * Keyboard Context */ +static int kbdctx_refresh_compose_table(kbdctx *kc, const char *lang) { + kbdtbl *kt; + idev_session *s; + idev_device *d; + Iterator i, j; + int r; + + if (!lang) + lang = "C"; + + if (streq_ptr(kc->locale_lang, lang)) + return 0; + + r = free_and_strdup(&kc->locale_lang, lang); + if (r < 0) + return r; + + log_debug("idev-keyboard: new default compose table: [ %s ]", lang); + + r = kbdtbl_new_from_locale(&kt, kc, lang); + if (r < 0) { + /* TODO: We need to catch the case where no compose-file is + * available. xkb doesn't tell us so far.. so we must not treat + * it as a hard-failure but just continue. Preferably, we want + * xkb to tell us exactly whether compilation failed or whether + * there is no compose file available for this locale. */ + log_debug("idev-keyboard: cannot load compose-table for '%s': %s", + lang, strerror(-r)); + r = 0; + kt = NULL; + } + + kbdtbl_unref(kc->kbdtbl); + kc->kbdtbl = kt; + + HASHMAP_FOREACH(s, kc->context->session_map, i) + HASHMAP_FOREACH(d, s->device_map, j) + if (idev_is_keyboard(d)) + keyboard_update_kbdtbl(keyboard_from_device(d)); + + return 0; +} + static void move_str(char **dest, char **src) { free(*dest); *dest = *src; @@ -239,7 +347,41 @@ static int kbdctx_refresh_keymap(kbdctx *kc) { return 0; } +static int kbdctx_set_locale(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) { + kbdctx *kc = userdata; + const char *s, *ctype = NULL, *lang = NULL; + int r; + + r = sd_bus_message_enter_container(m, 'a', "s"); + if (r < 0) + goto error; + + while ((r = sd_bus_message_read(m, "s", &s)) > 0) { + if (!ctype) + ctype = startswith(s, "LC_CTYPE="); + if (!lang) + lang = startswith(s, "LANG="); + } + + if (r < 0) + goto error; + + r = sd_bus_message_exit_container(m); + if (r < 0) + goto error; + + kbdctx_refresh_compose_table(kc, ctype ? : lang); + r = 0; + +error: + if (r < 0) + log_debug("idev-keyboard: cannot parse locale property from locale1: %s", strerror(-r)); + + return r; +} + static const struct bus_properties_map kbdctx_locale_map[] = { + { "Locale", "as", kbdctx_set_locale, 0 }, { "X11Model", "s", NULL, offsetof(kbdctx, locale_x11_model) }, { "X11Layout", "s", NULL, offsetof(kbdctx, locale_x11_layout) }, { "X11Variant", "s", NULL, offsetof(kbdctx, locale_x11_variant) }, @@ -385,8 +527,10 @@ static kbdctx *kbdctx_unref(kbdctx *kc) { free(kc->locale_x11_variant); free(kc->locale_x11_layout); free(kc->locale_x11_model); + free(kc->locale_lang); kc->slot_locale_get_all = sd_bus_slot_unref(kc->slot_locale_get_all); kc->slot_locale_props_changed = sd_bus_slot_unref(kc->slot_locale_props_changed); + kc->kbdtbl = kbdtbl_unref(kc->kbdtbl); kc->kbdmap = kbdmap_unref(kc->kbdmap); xkb_context_unref(kc->xkb_context); hashmap_remove_value(kc->context->data_map, KBDCTX_KEY, kc); @@ -420,6 +564,10 @@ static int kbdctx_new(kbdctx **out, idev_context *c) { if (r < 0) return r; + r = kbdctx_refresh_compose_table(kc, NULL); + if (r < 0) + return r; + if (c->sysbus) { r = kbdctx_setup_bus(kc); if (r < 0) @@ -529,6 +677,10 @@ int idev_keyboard_new(idev_device **out, idev_session *s, const char *name) { if (r < 0) return r; + r = keyboard_update_kbdtbl(k); + if (r < 0) + return r; + r = sd_event_add_time(s->context->event, &k->repeat_timer, CLOCK_MONOTONIC, @@ -557,12 +709,14 @@ int idev_keyboard_new(idev_device **out, idev_session *s, const char *name) { static void keyboard_free(idev_device *d) { idev_keyboard *k = keyboard_from_device(d); + xkb_compose_state_unref(k->xkb_compose); xkb_state_unref(k->xkb_state); free(k->repdata.keyboard.codepoints); free(k->repdata.keyboard.keysyms); free(k->evdata.keyboard.codepoints); free(k->evdata.keyboard.keysyms); k->repeat_timer = sd_event_source_unref(k->repeat_timer); + k->kbdtbl = kbdtbl_unref(k->kbdtbl); k->kbdmap = kbdmap_unref(k->kbdmap); k->kbdctx = kbdctx_unref(k->kbdctx); free(k); @@ -849,6 +1003,40 @@ error: return r; } +static int keyboard_update_kbdtbl(idev_keyboard *k) { + idev_device *d = &k->device; + struct xkb_compose_state *compose = NULL; + kbdtbl *kt; + int r; + + assert(k); + + kt = k->kbdctx->kbdtbl; + if (kt == k->kbdtbl) + return 0; + + if (kt) { + errno = 0; + compose = xkb_compose_state_new(kt->xkb_compose_table, XKB_COMPOSE_STATE_NO_FLAGS); + if (!compose) { + r = errno > 0 ? -errno : -EFAULT; + goto error; + } + } + + kbdtbl_unref(k->kbdtbl); + k->kbdtbl = kbdtbl_ref(kt); + xkb_compose_state_unref(k->xkb_compose); + k->xkb_compose = compose; + + return 0; + +error: + log_debug("idev-keyboard: %s/%s: cannot adopt new compose table: %s", + d->session->name, d->name, strerror(-r)); + return r; +} + static const idev_device_vtable keyboard_vtable = { .free = keyboard_free, .feed = keyboard_feed, |