sway-patched-tray-menu/sway/input/text_input.c
Alexander Gramiak d6f279902a sway/input: don't pass possibly invalid modifiers pointer
active_keyboard may be NULL, in which case an invalid pointer could be
passed to wlr_input_method_keyboard_grab_v2_send_modifiers. This
procedure call is unnecessary since wlroots commit 372a52ec "input
method: send modifiers in set_keyboard", so the call can simply be
removed.

Fixes #6836.
2022-03-04 08:37:07 +01:00

342 lines
12 KiB
C

#include <assert.h>
#include <stdlib.h>
#include "log.h"
#include "sway/input/seat.h"
#include "sway/input/text_input.h"
static struct sway_text_input *relay_get_focusable_text_input(
struct sway_input_method_relay *relay) {
struct sway_text_input *text_input = NULL;
wl_list_for_each(text_input, &relay->text_inputs, link) {
if (text_input->pending_focused_surface) {
return text_input;
}
}
return NULL;
}
static struct sway_text_input *relay_get_focused_text_input(
struct sway_input_method_relay *relay) {
struct sway_text_input *text_input = NULL;
wl_list_for_each(text_input, &relay->text_inputs, link) {
if (text_input->input->focused_surface) {
return text_input;
}
}
return NULL;
}
static void handle_im_commit(struct wl_listener *listener, void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
input_method_commit);
struct sway_text_input *text_input = relay_get_focused_text_input(relay);
if (!text_input) {
return;
}
struct wlr_input_method_v2 *context = data;
assert(context == relay->input_method);
if (context->current.preedit.text) {
wlr_text_input_v3_send_preedit_string(text_input->input,
context->current.preedit.text,
context->current.preedit.cursor_begin,
context->current.preedit.cursor_end);
}
if (context->current.commit_text) {
wlr_text_input_v3_send_commit_string(text_input->input,
context->current.commit_text);
}
if (context->current.delete.before_length
|| context->current.delete.after_length) {
wlr_text_input_v3_send_delete_surrounding_text(text_input->input,
context->current.delete.before_length,
context->current.delete.after_length);
}
wlr_text_input_v3_send_done(text_input->input);
}
static void handle_im_keyboard_grab_destroy(struct wl_listener *listener, void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
input_method_keyboard_grab_destroy);
struct wlr_input_method_keyboard_grab_v2 *keyboard_grab = data;
wl_list_remove(&relay->input_method_keyboard_grab_destroy.link);
if (keyboard_grab->keyboard) {
// send modifier state to original client
wlr_seat_keyboard_notify_modifiers(keyboard_grab->input_method->seat,
&keyboard_grab->keyboard->modifiers);
}
}
static void handle_im_grab_keyboard(struct wl_listener *listener, void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
input_method_grab_keyboard);
struct wlr_input_method_keyboard_grab_v2 *keyboard_grab = data;
// send modifier state to grab
struct wlr_keyboard *active_keyboard = wlr_seat_get_keyboard(relay->seat->wlr_seat);
wlr_input_method_keyboard_grab_v2_set_keyboard(keyboard_grab,
active_keyboard);
wl_signal_add(&keyboard_grab->events.destroy,
&relay->input_method_keyboard_grab_destroy);
relay->input_method_keyboard_grab_destroy.notify =
handle_im_keyboard_grab_destroy;
}
static void text_input_set_pending_focused_surface(
struct sway_text_input *text_input, struct wlr_surface *surface) {
wl_list_remove(&text_input->pending_focused_surface_destroy.link);
text_input->pending_focused_surface = surface;
if (surface) {
wl_signal_add(&surface->events.destroy,
&text_input->pending_focused_surface_destroy);
} else {
wl_list_init(&text_input->pending_focused_surface_destroy.link);
}
}
static void handle_im_destroy(struct wl_listener *listener, void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
input_method_destroy);
struct wlr_input_method_v2 *context = data;
assert(context == relay->input_method);
relay->input_method = NULL;
struct sway_text_input *text_input = relay_get_focused_text_input(relay);
if (text_input) {
// keyboard focus is still there, so keep the surface at hand in case
// the input method returns
text_input_set_pending_focused_surface(text_input,
text_input->input->focused_surface);
wlr_text_input_v3_send_leave(text_input->input);
}
}
static void relay_send_im_state(struct sway_input_method_relay *relay,
struct wlr_text_input_v3 *input) {
struct wlr_input_method_v2 *input_method = relay->input_method;
if (!input_method) {
sway_log(SWAY_INFO, "Sending IM_DONE but im is gone");
return;
}
// TODO: only send each of those if they were modified
if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_SURROUNDING_TEXT) {
wlr_input_method_v2_send_surrounding_text(input_method,
input->current.surrounding.text, input->current.surrounding.cursor,
input->current.surrounding.anchor);
}
wlr_input_method_v2_send_text_change_cause(input_method,
input->current.text_change_cause);
if (input->active_features & WLR_TEXT_INPUT_V3_FEATURE_CONTENT_TYPE) {
wlr_input_method_v2_send_content_type(input_method,
input->current.content_type.hint,
input->current.content_type.purpose);
}
wlr_input_method_v2_send_done(input_method);
// TODO: pass intent, display popup size
}
static void handle_text_input_enable(struct wl_listener *listener, void *data) {
struct sway_text_input *text_input = wl_container_of(listener, text_input,
text_input_enable);
if (text_input->relay->input_method == NULL) {
sway_log(SWAY_INFO, "Enabling text input when input method is gone");
return;
}
wlr_input_method_v2_send_activate(text_input->relay->input_method);
relay_send_im_state(text_input->relay, text_input->input);
}
static void handle_text_input_commit(struct wl_listener *listener,
void *data) {
struct sway_text_input *text_input = wl_container_of(listener, text_input,
text_input_commit);
if (!text_input->input->current_enabled) {
sway_log(SWAY_INFO, "Inactive text input tried to commit an update");
return;
}
sway_log(SWAY_DEBUG, "Text input committed update");
if (text_input->relay->input_method == NULL) {
sway_log(SWAY_INFO, "Text input committed, but input method is gone");
return;
}
relay_send_im_state(text_input->relay, text_input->input);
}
static void relay_disable_text_input(struct sway_input_method_relay *relay,
struct sway_text_input *text_input) {
if (relay->input_method == NULL) {
sway_log(SWAY_DEBUG, "Disabling text input, but input method is gone");
return;
}
wlr_input_method_v2_send_deactivate(relay->input_method);
relay_send_im_state(relay, text_input->input);
}
static void handle_text_input_disable(struct wl_listener *listener,
void *data) {
struct sway_text_input *text_input = wl_container_of(listener, text_input,
text_input_disable);
if (text_input->input->focused_surface == NULL) {
sway_log(SWAY_DEBUG, "Disabling text input, but no longer focused");
return;
}
relay_disable_text_input(text_input->relay, text_input);
}
static void handle_text_input_destroy(struct wl_listener *listener,
void *data) {
struct sway_text_input *text_input = wl_container_of(listener, text_input,
text_input_destroy);
if (text_input->input->current_enabled) {
relay_disable_text_input(text_input->relay, text_input);
}
text_input_set_pending_focused_surface(text_input, NULL);
wl_list_remove(&text_input->text_input_commit.link);
wl_list_remove(&text_input->text_input_destroy.link);
wl_list_remove(&text_input->text_input_disable.link);
wl_list_remove(&text_input->text_input_enable.link);
wl_list_remove(&text_input->link);
free(text_input);
}
static void handle_pending_focused_surface_destroy(struct wl_listener *listener,
void *data) {
struct sway_text_input *text_input = wl_container_of(listener, text_input,
pending_focused_surface_destroy);
struct wlr_surface *surface = data;
assert(text_input->pending_focused_surface == surface);
text_input->pending_focused_surface = NULL;
wl_list_remove(&text_input->pending_focused_surface_destroy.link);
wl_list_init(&text_input->pending_focused_surface_destroy.link);
}
struct sway_text_input *sway_text_input_create(
struct sway_input_method_relay *relay,
struct wlr_text_input_v3 *text_input) {
struct sway_text_input *input = calloc(1, sizeof(struct sway_text_input));
if (!input) {
return NULL;
}
input->input = text_input;
input->relay = relay;
wl_list_insert(&relay->text_inputs, &input->link);
input->text_input_enable.notify = handle_text_input_enable;
wl_signal_add(&text_input->events.enable, &input->text_input_enable);
input->text_input_commit.notify = handle_text_input_commit;
wl_signal_add(&text_input->events.commit, &input->text_input_commit);
input->text_input_disable.notify = handle_text_input_disable;
wl_signal_add(&text_input->events.disable, &input->text_input_disable);
input->text_input_destroy.notify = handle_text_input_destroy;
wl_signal_add(&text_input->events.destroy, &input->text_input_destroy);
input->pending_focused_surface_destroy.notify =
handle_pending_focused_surface_destroy;
wl_list_init(&input->pending_focused_surface_destroy.link);
return input;
}
static void relay_handle_text_input(struct wl_listener *listener,
void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
text_input_new);
struct wlr_text_input_v3 *wlr_text_input = data;
if (relay->seat->wlr_seat != wlr_text_input->seat) {
return;
}
sway_text_input_create(relay, wlr_text_input);
}
static void relay_handle_input_method(struct wl_listener *listener,
void *data) {
struct sway_input_method_relay *relay = wl_container_of(listener, relay,
input_method_new);
struct wlr_input_method_v2 *input_method = data;
if (relay->seat->wlr_seat != input_method->seat) {
return;
}
if (relay->input_method != NULL) {
sway_log(SWAY_INFO, "Attempted to connect second input method to a seat");
wlr_input_method_v2_send_unavailable(input_method);
return;
}
relay->input_method = input_method;
wl_signal_add(&relay->input_method->events.commit,
&relay->input_method_commit);
relay->input_method_commit.notify = handle_im_commit;
wl_signal_add(&relay->input_method->events.grab_keyboard,
&relay->input_method_grab_keyboard);
relay->input_method_grab_keyboard.notify = handle_im_grab_keyboard;
wl_signal_add(&relay->input_method->events.destroy,
&relay->input_method_destroy);
relay->input_method_destroy.notify = handle_im_destroy;
struct sway_text_input *text_input = relay_get_focusable_text_input(relay);
if (text_input) {
wlr_text_input_v3_send_enter(text_input->input,
text_input->pending_focused_surface);
text_input_set_pending_focused_surface(text_input, NULL);
}
}
void sway_input_method_relay_init(struct sway_seat *seat,
struct sway_input_method_relay *relay) {
relay->seat = seat;
wl_list_init(&relay->text_inputs);
relay->text_input_new.notify = relay_handle_text_input;
wl_signal_add(&server.text_input->events.text_input,
&relay->text_input_new);
relay->input_method_new.notify = relay_handle_input_method;
wl_signal_add(
&server.input_method->events.input_method,
&relay->input_method_new);
}
void sway_input_method_relay_finish(struct sway_input_method_relay *relay) {
wl_list_remove(&relay->input_method_new.link);
wl_list_remove(&relay->text_input_new.link);
}
void sway_input_method_relay_set_focus(struct sway_input_method_relay *relay,
struct wlr_surface *surface) {
struct sway_text_input *text_input;
wl_list_for_each(text_input, &relay->text_inputs, link) {
if (text_input->pending_focused_surface) {
assert(text_input->input->focused_surface == NULL);
if (surface != text_input->pending_focused_surface) {
text_input_set_pending_focused_surface(text_input, NULL);
}
} else if (text_input->input->focused_surface) {
assert(text_input->pending_focused_surface == NULL);
if (surface != text_input->input->focused_surface) {
relay_disable_text_input(relay, text_input);
wlr_text_input_v3_send_leave(text_input->input);
} else {
sway_log(SWAY_DEBUG, "IM relay set_focus already focused");
continue;
}
}
if (surface
&& wl_resource_get_client(text_input->input->resource)
== wl_resource_get_client(surface->resource)) {
if (relay->input_method) {
wlr_text_input_v3_send_enter(text_input->input, surface);
} else {
text_input_set_pending_focused_surface(text_input, surface);
}
}
}
}