diff options
Diffstat (limited to 'rootston/text_input.c')
| -rw-r--r-- | rootston/text_input.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/rootston/text_input.c b/rootston/text_input.c new file mode 100644 index 00000000..84dd253e --- /dev/null +++ b/rootston/text_input.c @@ -0,0 +1,312 @@ +#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); + 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); + if (!text_input->input->current_enabled) { + wlr_log(WLR_DEBUG, "Inactive text input tried to disable itself"); + return; + } + 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); + } + + 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; + 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); + } + } + } +} |