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authorDavid Herrmann <dh.herrmann@gmail.com>2014-11-24 16:32:54 +0100
committerDavid Herrmann <dh.herrmann@gmail.com>2014-11-24 18:30:03 +0100
commitcdcd0ccdbe427de53d8e5ff8f2f1b06b3f477bde (patch)
tree36f43cdd5fa340d02916e38f3373a8edc3eb0a6d /src/libsystemd-terminal
parent2ca620c4ed28c01f285d869d0b22f22a360957da (diff)
terminal/idev: add compose-file support
Add support for compose files to idev-keyboard. This requires libxkbcommon-0.5.0, which is pretty new, but should be fine. We don't use the compose-files, yet. Further commits will put life into them.
Diffstat (limited to 'src/libsystemd-terminal')
-rw-r--r--src/libsystemd-terminal/idev-keyboard.c188
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,