test/interactive-evdev: add compose support

To try, do e.g.:
sudo ./test/interactive-evdev -l us -v intl -o compose:ralt -d

Signed-off-by: Ran Benita <ran234@gmail.com>

4 files changed, 94 insertions, 24 deletions

diff --git a/test/common.c b/test/common.c
index e6cd1c3..0bacba0 100644
--- a/test/common.c
+++ b/test/common.c
@@ -347,14 +347,18 @@ test_compile_rules(struct xkb_context *context, const char *rules,
 }
 
 void
-test_print_keycode_state(struct xkb_state *state, xkb_keycode_t keycode)
+test_print_keycode_state(struct xkb_state *state,
+                         struct xkb_compose_state *compose_state,
+                         xkb_keycode_t keycode)
 {
     struct xkb_keymap *keymap;
 
+    xkb_keysym_t sym;
     const xkb_keysym_t *syms;
     int nsyms;
     char s[16];
     xkb_layout_index_t layout;
+    enum xkb_compose_status status;
 
     keymap = xkb_state_get_keymap(state);
 
@@ -363,21 +367,34 @@ test_print_keycode_state(struct xkb_state *state, xkb_keycode_t keycode)
     if (nsyms <= 0)
         return;
 
-    if (nsyms == 1) {
-        xkb_keysym_t sym = xkb_state_key_get_one_sym(state, keycode);
-        xkb_keysym_get_name(sym, s, sizeof(s));
-        printf("keysym [ %-*s ] ", (int) sizeof(s), s);
+    status = XKB_COMPOSE_NOTHING;
+    if (compose_state)
+        status = xkb_compose_state_get_status(compose_state);
+
+    if (status == XKB_COMPOSE_COMPOSING || status == XKB_COMPOSE_CANCELLED)
+        return;
+
+    if (status == XKB_COMPOSE_COMPOSED) {
+        sym = xkb_compose_state_get_one_sym(compose_state);
+        syms = &sym;
+        nsyms = 1;
     }
-    else {
-        printf("keysyms [ ");
-        for (int i = 0; i < nsyms; i++) {
-            xkb_keysym_get_name(syms[i], s, sizeof(s));
-            printf("%-*s ", (int) sizeof(s), s);
-        }
-        printf("] ");
+    else if (nsyms == 1) {
+        sym = xkb_state_key_get_one_sym(state, keycode);
+        syms = &sym;
     }
 
-    xkb_state_key_get_utf8(state, keycode, s, sizeof(s));
+    printf("keysyms [ ");
+    for (int i = 0; i < nsyms; i++) {
+        xkb_keysym_get_name(syms[i], s, sizeof(s));
+        printf("%-*s ", (int) sizeof(s), s);
+    }
+    printf("] ");
+
+    if (status == XKB_COMPOSE_COMPOSED)
+        xkb_compose_state_get_utf8(compose_state, s, sizeof(s));
+    else
+        xkb_state_key_get_utf8(state, keycode, s, sizeof(s));
     printf("unicode [ %s ] ", s);
 
     layout = xkb_state_key_get_layout(state, keycode);
diff --git a/test/interactive-evdev.c b/test/interactive-evdev.c
index c3c4965..04a347f 100644
--- a/test/interactive-evdev.c
+++ b/test/interactive-evdev.c
@@ -40,12 +40,14 @@ struct keyboard {
     char *path;
     int fd;
     struct xkb_state *state;
+    struct xkb_compose_state *compose_state;
     struct keyboard *next;
 };
 
 static bool terminate;
 static int evdev_offset = 8;
 static bool report_state_changes;
+static bool with_compose;
 
 #define NLONGS(n) (((n) + LONG_BIT - 1) / LONG_BIT)
 
@@ -85,12 +87,13 @@ is_keyboard(int fd)
 
 static int
 keyboard_new(struct dirent *ent, struct xkb_keymap *keymap,
-             struct keyboard **out)
+             struct xkb_compose_table *compose_table, struct keyboard **out)
 {
     int ret;
     char *path;
     int fd;
     struct xkb_state *state;
+    struct xkb_compose_state *compose_state = NULL;
     struct keyboard *kbd;
 
     ret = asprintf(&path, "/dev/input/%s", ent->d_name);
@@ -116,18 +119,31 @@ keyboard_new(struct dirent *ent, struct xkb_keymap *keymap,
         goto err_fd;
     }
 
+    if (with_compose) {
+        compose_state = xkb_compose_state_new(compose_table,
+                                              XKB_COMPOSE_STATE_NO_FLAGS);
+        if (!compose_state) {
+            fprintf(stderr, "Couldn't create compose state for %s\n", path);
+            ret = -EFAULT;
+            goto err_state;
+        }
+    }
+
     kbd = calloc(1, sizeof(*kbd));
     if (!kbd) {
         ret = -ENOMEM;
-        goto err_state;
+        goto err_compose_state;
     }
 
     kbd->path = path;
     kbd->fd = fd;
     kbd->state = state;
+    kbd->compose_state = compose_state;
     *out = kbd;
     return 0;
 
+err_compose_state:
+    xkb_compose_state_unref(compose_state);
 err_state:
     xkb_state_unref(state);
 err_fd:
@@ -146,6 +162,7 @@ keyboard_free(struct keyboard *kbd)
         close(kbd->fd);
     free(kbd->path);
     xkb_state_unref(kbd->state);
+    xkb_compose_state_unref(kbd->compose_state);
     free(kbd);
 }
 
@@ -156,7 +173,8 @@ filter_device_name(const struct dirent *ent)
 }
 
 static struct keyboard *
-get_keyboards(struct xkb_keymap *keymap)
+get_keyboards(struct xkb_keymap *keymap,
+              struct xkb_compose_table *compose_table)
 {
     int ret, i, nents;
     struct dirent **ents;
@@ -169,7 +187,7 @@ get_keyboards(struct xkb_keymap *keymap)
     }
 
     for (i = 0; i < nents; i++) {
-        ret = keyboard_new(ents[i], keymap, &kbd);
+        ret = keyboard_new(ents[i], keymap, compose_table, &kbd);
         if (ret) {
             if (ret == -EACCES) {
                 fprintf(stderr, "Couldn't open /dev/input/%s: %s. "
@@ -225,6 +243,7 @@ process_event(struct keyboard *kbd, uint16_t type, uint16_t code, int32_t value)
     xkb_keycode_t keycode;
     struct xkb_keymap *keymap;
     enum xkb_state_component changed;
+    enum xkb_compose_status status;
 
     if (type != EV_KEY)
         return;
@@ -235,8 +254,19 @@ process_event(struct keyboard *kbd, uint16_t type, uint16_t code, int32_t value)
     if (value == KEY_STATE_REPEAT && !xkb_keymap_key_repeats(keymap, keycode))
         return;
 
+    if (with_compose && value != KEY_STATE_RELEASE) {
+        xkb_keysym_t keysym = xkb_state_key_get_one_sym(kbd->state, keycode);
+        xkb_compose_state_feed(kbd->compose_state, keysym);
+    }
+
     if (value != KEY_STATE_RELEASE)
-        test_print_keycode_state(kbd->state, keycode);
+        test_print_keycode_state(kbd->state, kbd->compose_state, keycode);
+
+    if (with_compose) {
+        status = xkb_compose_state_get_status(kbd->compose_state);
+        if (status == XKB_COMPOSE_CANCELLED || status == XKB_COMPOSE_COMPOSED)
+            xkb_compose_state_reset(kbd->compose_state);
+    }
 
     if (value == KEY_STATE_RELEASE)
         changed = xkb_state_update_key(kbd->state, keycode, XKB_KEY_UP);
@@ -339,17 +369,19 @@ main(int argc, char *argv[])
     struct keyboard *kbds;
     struct xkb_context *ctx;
     struct xkb_keymap *keymap;
+    struct xkb_compose_table *compose_table = NULL;
     const char *rules = NULL;
     const char *model = NULL;
     const char *layout = NULL;
     const char *variant = NULL;
     const char *options = NULL;
     const char *keymap_path = NULL;
+    const char *locale;
     struct sigaction act;
 
     setlocale(LC_ALL, "");
 
-    while ((opt = getopt(argc, argv, "r:m:l:v:o:k:n:c")) != -1) {
+    while ((opt = getopt(argc, argv, "r:m:l:v:o:k:n:cd")) != -1) {
         switch (opt) {
         case 'r':
             rules = optarg;
@@ -380,6 +412,9 @@ main(int argc, char *argv[])
         case 'c':
             report_state_changes = true;
             break;
+        case 'd':
+            with_compose = true;
+            break;
         case '?':
             fprintf(stderr, "   Usage: %s [-r <rules>] [-m <model>] "
                     "[-l <layout>] [-v <variant>] [-o <options>]\n",
@@ -387,7 +422,8 @@ main(int argc, char *argv[])
             fprintf(stderr, "      or: %s -k <path to keymap file>\n",
                     argv[0]);
             fprintf(stderr, "For both: -n <evdev keycode offset>\n"
-                            "          -c (to report changes to the state)\n");
+                            "          -c (to report changes to the state)\n"
+                            "          -d (to enable compose)\n");
             exit(2);
         }
     }
@@ -422,10 +458,22 @@ main(int argc, char *argv[])
         goto err_ctx;
     }
 
-    kbds = get_keyboards(keymap);
+    if (with_compose) {
+        locale = setlocale(LC_CTYPE, NULL);
+        compose_table =
+            xkb_compose_table_new_from_locale(ctx, locale,
+                                              XKB_COMPOSE_COMPILE_NO_FLAGS);
+        if (!compose_table) {
+            ret = -1;
+            fprintf(stderr, "Couldn't create compose from locale\n");
+            goto err_xkb;
+        }
+    }
+
+    kbds = get_keyboards(keymap, compose_table);
     if (!kbds) {
         ret = -1;
-        goto err_xkb;
+        goto err_compose;
     }
 
     act.sa_handler = sigintr_handler;
@@ -444,6 +492,8 @@ main(int argc, char *argv[])
 err_stty:
     system("stty echo");
     free_keyboards(kbds);
+err_compose:
+    xkb_compose_table_unref(compose_table);
 err_xkb:
     xkb_keymap_unref(keymap);
 err_ctx:
diff --git a/test/interactive-x11.c b/test/interactive-x11.c
index 8679dda..d720004 100644
--- a/test/interactive-x11.c
+++ b/test/interactive-x11.c
@@ -236,7 +236,7 @@ process_event(xcb_generic_event_t *gevent, struct keyboard *kbd)
         xcb_key_press_event_t *event = (xcb_key_press_event_t *) gevent;
         xkb_keycode_t keycode = event->detail;
 
-        test_print_keycode_state(kbd->state, keycode);
+        test_print_keycode_state(kbd->state, NULL, keycode);
 
         /* Exit on ESC. */
         if (keycode == 9)
diff --git a/test/test.h b/test/test.h
index d0104ce..628ec18 100644
--- a/test/test.h
+++ b/test/test.h
@@ -28,6 +28,7 @@
 /* Don't use compat names in internal code. */
 #define _XKBCOMMON_COMPAT_H
 #include "xkbcommon/xkbcommon.h"
+#include "xkbcommon/xkbcommon-compose.h"
 #include "utils.h"
 
 /* Automake test exit code to signify SKIP (à la PASS, FAIL, etc). */
@@ -81,7 +82,9 @@ test_compile_rules(struct xkb_context *context, const char *rules,
                    const char *options);
 
 void
-test_print_keycode_state(struct xkb_state *state, xkb_keycode_t keycode);
+test_print_keycode_state(struct xkb_state *state,
+                         struct xkb_compose_state *compose_state,
+                         xkb_keycode_t keycode);
 
 void
 test_print_state_changes(enum xkb_state_component changed);