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examples/input-method-keyboard-grab: new example
This commit is contained in:
xdavidwu
Simon Ser
parent
595f324f8b
commit
842df2bd6c
217
examples/input-method-keyboard-grab.c
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217
examples/input-method-keyboard-grab.c
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <wayland-client.h>
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#include <xkbcommon/xkbcommon.h>
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#include "input-method-unstable-v2-client-protocol.h"
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static struct wl_display *display = NULL;
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static struct wl_seat *seat = NULL;
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static struct zwp_input_method_manager_v2 *input_method_manager = NULL;
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static struct zwp_input_method_v2 *input_method = NULL;
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static struct zwp_input_method_keyboard_grab_v2 *kb_grab = NULL;
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static bool active = false;
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static bool pending_active = false;
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static struct xkb_context *xkb_context = NULL;
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static struct xkb_keymap *keymap = NULL;
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static struct xkb_state *xkb_state = NULL;
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static void handle_key(void *data,
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struct zwp_input_method_keyboard_grab_v2 *im_keyboard_grab,
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uint32_t serial, uint32_t time, uint32_t key, uint32_t state) {
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printf("handle_key %u %u %u %u\n", serial, time, key, state);
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xkb_keysym_t keysym = xkb_state_key_get_one_sym(xkb_state, key + 8);
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char keysym_name[64];
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xkb_keysym_get_name(keysym, keysym_name, sizeof(keysym_name));
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printf("xkb translated to %s\n", keysym_name);
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if (state == WL_KEYBOARD_KEY_STATE_PRESSED) {
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if (keysym == XKB_KEY_KP_Enter || keysym == XKB_KEY_Return) {
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printf("Stopping grab\n");
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zwp_input_method_keyboard_grab_v2_release(kb_grab);
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kb_grab = NULL;
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}
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}
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}
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static void handle_modifiers(void *data,
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struct zwp_input_method_keyboard_grab_v2 *im_keyboard_grab,
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uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched,
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uint32_t mods_locked, uint32_t group) {
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printf("handle_modifiers %u %u %u %u %u\n", serial, mods_depressed,
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mods_latched, mods_locked, group);
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xkb_state_update_mask(xkb_state, mods_depressed, mods_latched,
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mods_locked, 0, 0, group);
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}
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static void handle_keymap(void *data,
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struct zwp_input_method_keyboard_grab_v2 *im_keyboard_grab,
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uint32_t format, int32_t fd, uint32_t size) {
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printf("handle_keymap\n");
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char *keymap_string = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0);
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xkb_keymap_unref(keymap);
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keymap = xkb_keymap_new_from_string(xkb_context, keymap_string,
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XKB_KEYMAP_FORMAT_TEXT_V1, XKB_KEYMAP_COMPILE_NO_FLAGS);
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munmap(keymap_string, size);
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close(fd);
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xkb_state_unref(xkb_state);
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xkb_state = xkb_state_new(keymap);
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}
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static void handle_repeat_info(void *data,
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struct zwp_input_method_keyboard_grab_v2 *im_keyboard_grab,
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int32_t rate, int32_t delay) {
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printf("handle_repeat_info %d %d", rate, delay);
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}
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static const struct zwp_input_method_keyboard_grab_v2_listener grab_listener = {
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.key = handle_key,
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.modifiers = handle_modifiers,
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.keymap = handle_keymap,
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.repeat_info = handle_repeat_info,
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};
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static void handle_activate(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2) {
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pending_active = true;
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}
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static void handle_deactivate(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2) {
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pending_active = false;
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}
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static void handle_unavailable(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2) {
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printf("IM unavailable\n");
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zwp_input_method_v2_destroy(zwp_input_method_v2);
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input_method = NULL;
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}
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static void im_activate(void *data,
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struct zwp_input_method_v2 *id) {
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kb_grab = zwp_input_method_v2_grab_keyboard(input_method);
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if (kb_grab == NULL) {
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fprintf(stderr, "Failed to grab\n");
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exit(EXIT_FAILURE);
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}
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zwp_input_method_keyboard_grab_v2_add_listener(kb_grab, &grab_listener,
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NULL);
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printf("Started grab, press enter to stop grab\n");
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}
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static void im_deactivate(void *data,
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struct zwp_input_method_v2 *context) {
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if (kb_grab != NULL) {
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zwp_input_method_keyboard_grab_v2_release(kb_grab);
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kb_grab = NULL;
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}
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}
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static void handle_done(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2) {
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bool prev_active = active;
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if (active != pending_active) {
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printf("Now %s\n", pending_active ? "active" : "inactive");
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}
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active = pending_active;
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if (active && !prev_active) {
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im_activate(data, zwp_input_method_v2);
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} else if (!active && prev_active) {
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im_deactivate(data, zwp_input_method_v2);
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}
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}
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static void handle_surrounding_text(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2,
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const char *text, uint32_t cursor, uint32_t anchor) {
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// not for this test
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}
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static void handle_text_change_cause(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2,
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uint32_t cause) {
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// not for this test
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}
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static void handle_content_type(void *data,
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struct zwp_input_method_v2 *zwp_input_method_v2,
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uint32_t hint, uint32_t purpose) {
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// not for this test
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}
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static const struct zwp_input_method_v2_listener im_listener = {
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.activate = handle_activate,
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.deactivate = handle_deactivate,
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.surrounding_text = handle_surrounding_text,
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.text_change_cause = handle_text_change_cause,
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.content_type = handle_content_type,
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.done = handle_done,
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.unavailable = handle_unavailable,
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};
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static void handle_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *interface, uint32_t version) {
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if (strcmp(interface, zwp_input_method_manager_v2_interface.name) == 0) {
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input_method_manager = wl_registry_bind(registry, name,
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&zwp_input_method_manager_v2_interface, 1);
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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seat = wl_registry_bind(registry, name, &wl_seat_interface, version);
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}
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}
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static void handle_global_remove(void *data, struct wl_registry *registry,
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uint32_t name) {
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// who cares
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}
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static const struct wl_registry_listener registry_listener = {
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.global = handle_global,
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.global_remove = handle_global_remove,
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};
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int main(int argc, char **argv) {
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xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
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if (xkb_context == NULL) {
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fprintf(stderr, "Failed to create xkb context\n");
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return EXIT_FAILURE;
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}
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display = wl_display_connect(NULL);
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if (display == NULL) {
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fprintf(stderr, "Failed to create display\n");
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return EXIT_FAILURE;
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}
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struct wl_registry *registry = wl_display_get_registry(display);
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wl_registry_add_listener(registry, ®istry_listener, NULL);
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wl_display_dispatch(display);
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wl_display_roundtrip(display);
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if (input_method_manager == NULL) {
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fprintf(stderr, "input-method not available\n");
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return EXIT_FAILURE;
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}
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if (seat == NULL) {
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fprintf(stderr, "seat not available\n");
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return EXIT_FAILURE;
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}
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input_method = zwp_input_method_manager_v2_get_input_method(
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input_method_manager, seat);
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zwp_input_method_v2_add_listener(input_method, &im_listener, NULL);
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wl_display_roundtrip(display);
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while (wl_display_dispatch(display) != -1) {
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// This space is intentionally left blank
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};
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return EXIT_SUCCESS;
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}
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@ -170,6 +170,13 @@ clients = {
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'dep': wlroots,
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'proto': ['wlr-virtual-pointer-unstable-v1'],
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},
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'input-method-keyboard-grab': {
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'src': 'input-method-keyboard-grab.c',
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'dep': xkbcommon,
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'proto': [
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'input-method-unstable-v2',
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],
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},
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}
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foreach name, info : compositors
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