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#include <assert.h>
#include <stdlib.h>
#include <wlr/util/log.h>
#include "rootston/seat.h"
#include "rootston/text_input.h"
static struct roots_text_input *relay_get_focusable_text_input(
struct roots_input_method_relay *relay) {
struct roots_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 roots_text_input *relay_get_focused_text_input(
struct roots_input_method_relay *relay) {
struct roots_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 roots_input_method_relay *relay = wl_container_of(listener, relay,
input_method_commit);
struct roots_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 text_input_set_pending_focused_surface(
struct roots_text_input *text_input, struct wlr_surface *surface) {
text_input->pending_focused_surface = surface;
wl_signal_add(&surface->events.destroy,
&text_input->pending_focused_surface_destroy);
}
static void text_input_clear_pending_focused_surface(
struct roots_text_input *text_input) {
wl_list_remove(&text_input->pending_focused_surface_destroy.link);
wl_list_init(&text_input->pending_focused_surface_destroy.link);
text_input->pending_focused_surface = NULL;
}
static void handle_im_destroy(struct wl_listener *listener, void *data) {
struct roots_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 roots_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_done(struct roots_input_method_relay *relay,
struct wlr_text_input_v3 *input) {
struct wlr_input_method_v2 *input_method = relay->input_method;
if (!input_method) {
wlr_log(WLR_INFO, "Sending IM_DONE but im is gone");
return;
}
// TODO: only send each of those if they were modified
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);
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 struct roots_text_input *text_input_to_roots(
struct roots_input_method_relay *relay,
struct wlr_text_input_v3 *text_input) {
struct roots_text_input *roots_text_input = NULL;
wl_list_for_each(roots_text_input, &relay->text_inputs, link) {
if (roots_text_input->input == text_input) {
return roots_text_input;
}
}
return NULL;
}
static void handle_text_input_enable(struct wl_listener *listener, void *data) {
struct roots_input_method_relay *relay = wl_container_of(listener, relay,
text_input_enable);
if (relay->input_method == NULL) {
wlr_log(WLR_INFO, "Enabling text input when input method is gone");
return;
}
struct roots_text_input *text_input = text_input_to_roots(relay,
(struct wlr_text_input_v3*)data);
wlr_input_method_v2_send_activate(relay->input_method);
relay_send_im_done(relay, text_input->input);
}
static void handle_text_input_commit(struct wl_listener *listener,
void *data) {
struct roots_input_method_relay *relay = wl_container_of(listener, relay,
text_input_commit);
struct roots_text_input *text_input = text_input_to_roots(relay,
(struct wlr_text_input_v3*)data);
if (!text_input->input->current_enabled) {
wlr_log(WLR_INFO, "Inactive text input tried to commit an update");
return;
}
wlr_log(WLR_DEBUG, "Text input committed update");
if (relay->input_method == NULL) {
wlr_log(WLR_INFO, "Text input committed, but input method is gone");
return;
}
relay_send_im_done(relay, text_input->input);
}
static void relay_disable_text_input(struct roots_input_method_relay *relay,
struct roots_text_input *text_input) {
if (relay->input_method == NULL) {
wlr_log(WLR_DEBUG, "Disabling text input, but input method is gone");
return;
}
wlr_input_method_v2_send_deactivate(relay->input_method);
relay_send_im_done(relay, text_input->input);
}
static void handle_text_input_disable(struct wl_listener *listener,
void *data) {
struct roots_input_method_relay *relay = wl_container_of(listener, relay,
text_input_disable);
struct roots_text_input *text_input = text_input_to_roots(relay,
(struct wlr_text_input_v3*)data);
relay_disable_text_input(relay, text_input);
}
static void handle_text_input_destroy(struct wl_listener *listener,
void *data) {
struct roots_input_method_relay *relay = wl_container_of(listener, relay,
text_input_destroy);
struct roots_text_input *text_input = text_input_to_roots(relay,
(struct wlr_text_input_v3*)data);
if (text_input->input->current_enabled) {
relay_disable_text_input(relay, text_input);
}
text_input_clear_pending_focused_surface(text_input);
wl_list_remove(&text_input->link);
text_input->input = NULL;
free(text_input);
}
static void handle_pending_focused_surface_destroy(struct wl_listener *listener,
void *data) {
struct roots_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;
}
struct roots_text_input *roots_text_input_create(
struct roots_input_method_relay *relay,
struct wlr_text_input_v3 *text_input) {
struct roots_text_input *input = calloc(1, sizeof(struct roots_text_input));
if (!input) {
return NULL;
}
input->input = text_input;
input->relay = relay;
wl_signal_add(&text_input->events.enable, &relay->text_input_enable);
relay->text_input_enable.notify = handle_text_input_enable;
wl_signal_add(&text_input->events.commit, &relay->text_input_commit);
relay->text_input_commit.notify = handle_text_input_commit;
wl_signal_add(&text_input->events.disable, &relay->text_input_disable);
relay->text_input_disable.notify = handle_text_input_disable;
wl_signal_add(&text_input->events.destroy, &relay->text_input_destroy);
relay->text_input_destroy.notify = handle_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 roots_input_method_relay *relay = wl_container_of(listener, relay,
text_input_new);
struct wlr_text_input_v3 *wlr_text_input = data;
if (relay->seat->seat != wlr_text_input->seat) {
return;
}
struct roots_text_input *text_input = roots_text_input_create(relay,
wlr_text_input);
if (!text_input) {
return;
}
wl_list_insert(&relay->text_inputs, &text_input->link);
}
static void relay_handle_input_method(struct wl_listener *listener,
void *data) {
struct roots_input_method_relay *relay = wl_container_of(listener, relay,
input_method_new);
struct wlr_input_method_v2 *input_method = data;
if (relay->seat->seat != input_method->seat) {
return;
}
if (relay->input_method != NULL) {
wlr_log(WLR_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.destroy,
&relay->input_method_destroy);
relay->input_method_destroy.notify = handle_im_destroy;
struct roots_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_clear_pending_focused_surface(text_input);
}
}
void roots_input_method_relay_init(struct roots_seat *seat,
struct roots_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(&seat->input->server->desktop->text_input->events.text_input,
&relay->text_input_new);
relay->input_method_new.notify = relay_handle_input_method;
wl_signal_add(
&seat->input->server->desktop->input_method->events.input_method,
&relay->input_method_new);
}
void roots_input_method_relay_set_focus(struct roots_input_method_relay *relay,
struct wlr_surface *surface) {
struct roots_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_clear_pending_focused_surface(text_input);
}
} 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 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);
}
}
}
}
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