/* * Copyright © 2013 Intel Corporation * Copyright 2017-2018 Collabora, Ltd. * Copyright 2017-2018 General Electric Company * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include "shared/helpers.h" #include "shared/os-compatibility.h" #include "shared/timespec-util.h" #include #include "backend.h" #include "libweston-internal.h" #include "relative-pointer-unstable-v1-server-protocol.h" #include "pointer-constraints-unstable-v1-server-protocol.h" #include "input-timestamps-unstable-v1-server-protocol.h" enum pointer_constraint_type { POINTER_CONSTRAINT_TYPE_LOCK, POINTER_CONSTRAINT_TYPE_CONFINE, }; enum motion_direction { MOTION_DIRECTION_POSITIVE_X = 1 << 0, MOTION_DIRECTION_NEGATIVE_X = 1 << 1, MOTION_DIRECTION_POSITIVE_Y = 1 << 2, MOTION_DIRECTION_NEGATIVE_Y = 1 << 3, }; struct vec2d { double x, y; }; struct line { struct vec2d a; struct vec2d b; }; struct border { struct line line; enum motion_direction blocking_dir; }; static void maybe_warp_confined_pointer(struct weston_pointer_constraint *constraint); static void empty_region(pixman_region32_t *region) { pixman_region32_fini(region); pixman_region32_init(region); } static void region_init_infinite(pixman_region32_t *region) { pixman_region32_init_rect(region, INT32_MIN, INT32_MIN, UINT32_MAX, UINT32_MAX); } static void send_timestamp(struct wl_resource *resource, const struct timespec *time) { uint32_t tv_sec_hi, tv_sec_lo, tv_nsec; timespec_to_proto(time, &tv_sec_hi, &tv_sec_lo, &tv_nsec); zwp_input_timestamps_v1_send_timestamp(resource, tv_sec_hi, tv_sec_lo, tv_nsec); } static void send_timestamps_for_input_resource(struct wl_resource *input_resource, struct wl_list *list, const struct timespec *time) { struct wl_resource *resource; wl_resource_for_each(resource, list) { if (wl_resource_get_user_data(resource) == input_resource) send_timestamp(resource, time); } } static void remove_input_resource_from_timestamps(struct wl_resource *input_resource, struct wl_list *list) { struct wl_resource *resource; wl_resource_for_each(resource, list) { if (wl_resource_get_user_data(resource) == input_resource) wl_resource_set_user_data(resource, NULL); } } /** Register a touchscreen input device * * \param touch The parent weston_touch that identifies the seat. * \param syspath Unique device name. * \param backend_data Backend private data if necessary. * \param ops Calibration operations, or NULL for not able to run calibration. * \return New touch device, or NULL on failure. */ WL_EXPORT struct weston_touch_device * weston_touch_create_touch_device(struct weston_touch *touch, const char *syspath, void *backend_data, const struct weston_touch_device_ops *ops) { struct weston_touch_device *device; assert(syspath); if (ops) { assert(ops->get_output); assert(ops->get_calibration_head_name); assert(ops->get_calibration); assert(ops->set_calibration); } device = zalloc(sizeof *device); if (!device) return NULL; wl_signal_init(&device->destroy_signal); device->syspath = strdup(syspath); if (!device->syspath) { free(device); return NULL; } device->backend_data = backend_data; device->ops = ops; device->aggregate = touch; wl_list_insert(touch->device_list.prev, &device->link); return device; } /** Destroy the touch device. */ WL_EXPORT void weston_touch_device_destroy(struct weston_touch_device *device) { wl_list_remove(&device->link); wl_signal_emit(&device->destroy_signal, device); free(device->syspath); free(device); } /** Is it possible to run calibration on this touch device? */ WL_EXPORT bool weston_touch_device_can_calibrate(struct weston_touch_device *device) { return !!device->ops; } static enum weston_touch_mode weston_touch_device_get_mode(struct weston_touch_device *device) { return device->aggregate->seat->compositor->touch_mode; } static struct weston_pointer_client * weston_pointer_client_create(struct wl_client *client) { struct weston_pointer_client *pointer_client; pointer_client = zalloc(sizeof *pointer_client); if (!pointer_client) return NULL; pointer_client->client = client; wl_list_init(&pointer_client->pointer_resources); wl_list_init(&pointer_client->relative_pointer_resources); return pointer_client; } static void weston_pointer_client_destroy(struct weston_pointer_client *pointer_client) { struct wl_resource *resource; wl_resource_for_each(resource, &pointer_client->pointer_resources) { wl_resource_set_user_data(resource, NULL); } wl_resource_for_each(resource, &pointer_client->relative_pointer_resources) { wl_resource_set_user_data(resource, NULL); } wl_list_remove(&pointer_client->pointer_resources); wl_list_remove(&pointer_client->relative_pointer_resources); free(pointer_client); } static bool weston_pointer_client_is_empty(struct weston_pointer_client *pointer_client) { return (wl_list_empty(&pointer_client->pointer_resources) && wl_list_empty(&pointer_client->relative_pointer_resources)); } static struct weston_pointer_client * weston_pointer_get_pointer_client(struct weston_pointer *pointer, struct wl_client *client) { struct weston_pointer_client *pointer_client; wl_list_for_each(pointer_client, &pointer->pointer_clients, link) { if (pointer_client->client == client) return pointer_client; } return NULL; } static struct weston_pointer_client * weston_pointer_ensure_pointer_client(struct weston_pointer *pointer, struct wl_client *client) { struct weston_pointer_client *pointer_client; pointer_client = weston_pointer_get_pointer_client(pointer, client); if (pointer_client) return pointer_client; pointer_client = weston_pointer_client_create(client); wl_list_insert(&pointer->pointer_clients, &pointer_client->link); if (pointer->focus && pointer->focus->surface->resource && wl_resource_get_client(pointer->focus->surface->resource) == client) { pointer->focus_client = pointer_client; } return pointer_client; } static void weston_pointer_cleanup_pointer_client(struct weston_pointer *pointer, struct weston_pointer_client *pointer_client) { if (weston_pointer_client_is_empty(pointer_client)) { if (pointer->focus_client == pointer_client) pointer->focus_client = NULL; wl_list_remove(&pointer_client->link); weston_pointer_client_destroy(pointer_client); } } static void unbind_pointer_client_resource(struct wl_resource *resource) { struct weston_pointer *pointer = wl_resource_get_user_data(resource); struct wl_client *client = wl_resource_get_client(resource); struct weston_pointer_client *pointer_client; wl_list_remove(wl_resource_get_link(resource)); if (pointer) { pointer_client = weston_pointer_get_pointer_client(pointer, client); assert(pointer_client); remove_input_resource_from_timestamps(resource, &pointer->timestamps_list); weston_pointer_cleanup_pointer_client(pointer, pointer_client); } } static void unbind_resource(struct wl_resource *resource) { wl_list_remove(wl_resource_get_link(resource)); } WL_EXPORT void weston_pointer_motion_to_abs(struct weston_pointer *pointer, struct weston_pointer_motion_event *event, wl_fixed_t *x, wl_fixed_t *y) { if (event->mask & WESTON_POINTER_MOTION_ABS) { *x = wl_fixed_from_double(event->x); *y = wl_fixed_from_double(event->y); } else if (event->mask & WESTON_POINTER_MOTION_REL) { *x = pointer->x + wl_fixed_from_double(event->dx); *y = pointer->y + wl_fixed_from_double(event->dy); } else { assert(!"invalid motion event"); *x = *y = 0; } } static bool weston_pointer_motion_to_rel(struct weston_pointer *pointer, struct weston_pointer_motion_event *event, double *dx, double *dy, double *dx_unaccel, double *dy_unaccel) { if (event->mask & WESTON_POINTER_MOTION_REL && event->mask & WESTON_POINTER_MOTION_REL_UNACCEL) { *dx = event->dx; *dy = event->dy; *dx_unaccel = event->dx_unaccel; *dy_unaccel = event->dy_unaccel; return true; } else if (event->mask & WESTON_POINTER_MOTION_REL) { *dx_unaccel = *dx = event->dx; *dy_unaccel = *dy = event->dy; return true; } else if (event->mask & WESTON_POINTER_MOTION_REL_UNACCEL) { *dx_unaccel = *dx = event->dx_unaccel; *dy_unaccel = *dy = event->dy_unaccel; return true; } else { return false; } } WL_EXPORT void weston_seat_repick(struct weston_seat *seat) { const struct weston_pointer *pointer = weston_seat_get_pointer(seat); if (!pointer) return; pointer->grab->interface->focus(pointer->grab); } static void weston_compositor_idle_inhibit(struct weston_compositor *compositor) { weston_compositor_wake(compositor); compositor->idle_inhibit++; } static void weston_compositor_idle_release(struct weston_compositor *compositor) { compositor->idle_inhibit--; weston_compositor_wake(compositor); } static void pointer_focus_view_destroyed(struct wl_listener *listener, void *data) { struct weston_pointer *pointer = container_of(listener, struct weston_pointer, focus_view_listener); weston_pointer_clear_focus(pointer); } static void pointer_focus_resource_destroyed(struct wl_listener *listener, void *data) { struct weston_pointer *pointer = container_of(listener, struct weston_pointer, focus_resource_listener); weston_pointer_clear_focus(pointer); } static void keyboard_focus_resource_destroyed(struct wl_listener *listener, void *data) { struct weston_keyboard *keyboard = container_of(listener, struct weston_keyboard, focus_resource_listener); weston_keyboard_set_focus(keyboard, NULL); } static void touch_focus_view_destroyed(struct wl_listener *listener, void *data) { struct weston_touch *touch = container_of(listener, struct weston_touch, focus_view_listener); weston_touch_set_focus(touch, NULL); } static void touch_focus_resource_destroyed(struct wl_listener *listener, void *data) { struct weston_touch *touch = container_of(listener, struct weston_touch, focus_resource_listener); weston_touch_set_focus(touch, NULL); } static void move_resources(struct wl_list *destination, struct wl_list *source) { wl_list_insert_list(destination, source); wl_list_init(source); } static void move_resources_for_client(struct wl_list *destination, struct wl_list *source, struct wl_client *client) { struct wl_resource *resource, *tmp; wl_resource_for_each_safe(resource, tmp, source) { if (wl_resource_get_client(resource) == client) { wl_list_remove(wl_resource_get_link(resource)); wl_list_insert(destination, wl_resource_get_link(resource)); } } } static void default_grab_pointer_focus(struct weston_pointer_grab *grab) { struct weston_pointer *pointer = grab->pointer; struct weston_view *view; wl_fixed_t sx, sy; if (pointer->button_count > 0) return; view = weston_compositor_pick_view(pointer->seat->compositor, pointer->x, pointer->y, &sx, &sy); if (pointer->focus != view || pointer->sx != sx || pointer->sy != sy) weston_pointer_set_focus(pointer, view, sx, sy); } static void pointer_send_relative_motion(struct weston_pointer *pointer, const struct timespec *time, struct weston_pointer_motion_event *event) { uint64_t time_usec; double dx, dy, dx_unaccel, dy_unaccel; wl_fixed_t dxf, dyf, dxf_unaccel, dyf_unaccel; struct wl_list *resource_list; struct wl_resource *resource; if (!pointer->focus_client) return; if (!weston_pointer_motion_to_rel(pointer, event, &dx, &dy, &dx_unaccel, &dy_unaccel)) return; resource_list = &pointer->focus_client->relative_pointer_resources; time_usec = timespec_to_usec(&event->time); if (time_usec == 0) time_usec = timespec_to_usec(time); dxf = wl_fixed_from_double(dx); dyf = wl_fixed_from_double(dy); dxf_unaccel = wl_fixed_from_double(dx_unaccel); dyf_unaccel = wl_fixed_from_double(dy_unaccel); wl_resource_for_each(resource, resource_list) { zwp_relative_pointer_v1_send_relative_motion( resource, (uint32_t) (time_usec >> 32), (uint32_t) time_usec, dxf, dyf, dxf_unaccel, dyf_unaccel); } } static void pointer_send_motion(struct weston_pointer *pointer, const struct timespec *time, wl_fixed_t sx, wl_fixed_t sy) { struct wl_list *resource_list; struct wl_resource *resource; uint32_t msecs; if (!pointer->focus_client) return; resource_list = &pointer->focus_client->pointer_resources; msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &pointer->timestamps_list, time); wl_pointer_send_motion(resource, msecs, sx, sy); } } WL_EXPORT void weston_pointer_send_motion(struct weston_pointer *pointer, const struct timespec *time, struct weston_pointer_motion_event *event) { wl_fixed_t x, y; wl_fixed_t old_sx = pointer->sx; wl_fixed_t old_sy = pointer->sy; if (pointer->focus) { weston_pointer_motion_to_abs(pointer, event, &x, &y); weston_view_from_global_fixed(pointer->focus, x, y, &pointer->sx, &pointer->sy); } weston_pointer_move(pointer, event); if (old_sx != pointer->sx || old_sy != pointer->sy) { pointer_send_motion(pointer, time, pointer->sx, pointer->sy); } pointer_send_relative_motion(pointer, time, event); } static void default_grab_pointer_motion(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_motion_event *event) { weston_pointer_send_motion(grab->pointer, time, event); } /** Check if the pointer has focused resources. * * \param pointer The pointer to check for focused resources. * \return Whether or not this pointer has focused resources */ WL_EXPORT bool weston_pointer_has_focus_resource(struct weston_pointer *pointer) { if (!pointer->focus_client) return false; if (wl_list_empty(&pointer->focus_client->pointer_resources)) return false; return true; } /** Send wl_pointer.button events to focused resources. * * \param pointer The pointer where the button events originates from. * \param time The timestamp of the event * \param button The button value of the event * \param state The state enum value of the event * * For every resource that is currently in focus, send a wl_pointer.button event * with the passed parameters. The focused resources are the wl_pointer * resources of the client which currently has the surface with pointer focus. */ WL_EXPORT void weston_pointer_send_button(struct weston_pointer *pointer, const struct timespec *time, uint32_t button, enum wl_pointer_button_state state) { struct wl_display *display = pointer->seat->compositor->wl_display; struct wl_list *resource_list; struct wl_resource *resource; uint32_t serial; uint32_t msecs; if (!weston_pointer_has_focus_resource(pointer)) return; resource_list = &pointer->focus_client->pointer_resources; serial = wl_display_next_serial(display); msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &pointer->timestamps_list, time); wl_pointer_send_button(resource, serial, msecs, button, state); } } static void default_grab_pointer_button(struct weston_pointer_grab *grab, const struct timespec *time, uint32_t button, enum wl_pointer_button_state state) { struct weston_pointer *pointer = grab->pointer; struct weston_compositor *compositor = pointer->seat->compositor; struct weston_view *view; wl_fixed_t sx, sy; weston_pointer_send_button(pointer, time, button, state); if (pointer->button_count == 0 && state == WL_POINTER_BUTTON_STATE_RELEASED) { view = weston_compositor_pick_view(compositor, pointer->x, pointer->y, &sx, &sy); weston_pointer_set_focus(pointer, view, sx, sy); } } /** Send wl_pointer.axis events to focused resources. * * \param pointer The pointer where the axis events originates from. * \param time The timestamp of the event * \param event The axis value of the event * * For every resource that is currently in focus, send a wl_pointer.axis event * with the passed parameters. The focused resources are the wl_pointer * resources of the client which currently has the surface with pointer focus. */ WL_EXPORT void weston_pointer_send_axis(struct weston_pointer *pointer, const struct timespec *time, struct weston_pointer_axis_event *event) { struct wl_resource *resource; struct wl_list *resource_list; uint32_t msecs; if (!weston_pointer_has_focus_resource(pointer)) return; resource_list = &pointer->focus_client->pointer_resources; msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { if (event->has_discrete && wl_resource_get_version(resource) >= WL_POINTER_AXIS_DISCRETE_SINCE_VERSION) wl_pointer_send_axis_discrete(resource, event->axis, event->discrete); if (event->value) { send_timestamps_for_input_resource(resource, &pointer->timestamps_list, time); wl_pointer_send_axis(resource, msecs, event->axis, wl_fixed_from_double(event->value)); } else if (wl_resource_get_version(resource) >= WL_POINTER_AXIS_STOP_SINCE_VERSION) { send_timestamps_for_input_resource(resource, &pointer->timestamps_list, time); wl_pointer_send_axis_stop(resource, msecs, event->axis); } } } /** Send wl_pointer.axis_source events to focused resources. * * \param pointer The pointer where the axis_source events originates from. * \param source The axis_source enum value of the event * * For every resource that is currently in focus, send a wl_pointer.axis_source * event with the passed parameter. The focused resources are the wl_pointer * resources of the client which currently has the surface with pointer focus. */ WL_EXPORT void weston_pointer_send_axis_source(struct weston_pointer *pointer, enum wl_pointer_axis_source source) { struct wl_resource *resource; struct wl_list *resource_list; if (!weston_pointer_has_focus_resource(pointer)) return; resource_list = &pointer->focus_client->pointer_resources; wl_resource_for_each(resource, resource_list) { if (wl_resource_get_version(resource) >= WL_POINTER_AXIS_SOURCE_SINCE_VERSION) { wl_pointer_send_axis_source(resource, source); } } } static void pointer_send_frame(struct wl_resource *resource) { if (wl_resource_get_version(resource) >= WL_POINTER_FRAME_SINCE_VERSION) { wl_pointer_send_frame(resource); } } /** Send wl_pointer.frame events to focused resources. * * \param pointer The pointer where the frame events originates from. * * For every resource that is currently in focus, send a wl_pointer.frame event. * The focused resources are the wl_pointer resources of the client which * currently has the surface with pointer focus. */ WL_EXPORT void weston_pointer_send_frame(struct weston_pointer *pointer) { struct wl_resource *resource; struct wl_list *resource_list; if (!weston_pointer_has_focus_resource(pointer)) return; resource_list = &pointer->focus_client->pointer_resources; wl_resource_for_each(resource, resource_list) pointer_send_frame(resource); } static void default_grab_pointer_axis(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_axis_event *event) { weston_pointer_send_axis(grab->pointer, time, event); } static void default_grab_pointer_axis_source(struct weston_pointer_grab *grab, enum wl_pointer_axis_source source) { weston_pointer_send_axis_source(grab->pointer, source); } static void default_grab_pointer_frame(struct weston_pointer_grab *grab) { weston_pointer_send_frame(grab->pointer); } static void default_grab_pointer_cancel(struct weston_pointer_grab *grab) { } static const struct weston_pointer_grab_interface default_pointer_grab_interface = { default_grab_pointer_focus, default_grab_pointer_motion, default_grab_pointer_button, default_grab_pointer_axis, default_grab_pointer_axis_source, default_grab_pointer_frame, default_grab_pointer_cancel, }; /** Check if the touch has focused resources. * * \param touch The touch to check for focused resources. * \return Whether or not this touch has focused resources */ WL_EXPORT bool weston_touch_has_focus_resource(struct weston_touch *touch) { if (!touch->focus) return false; if (wl_list_empty(&touch->focus_resource_list)) return false; return true; } /** Send wl_touch.down events to focused resources. * * \param touch The touch where the down events originates from. * \param time The timestamp of the event * \param touch_id The touch_id value of the event * \param x The x value of the event * \param y The y value of the event * * For every resource that is currently in focus, send a wl_touch.down event * with the passed parameters. The focused resources are the wl_touch * resources of the client which currently has the surface with touch focus. */ WL_EXPORT void weston_touch_send_down(struct weston_touch *touch, const struct timespec *time, int touch_id, wl_fixed_t x, wl_fixed_t y) { struct wl_display *display = touch->seat->compositor->wl_display; uint32_t serial; struct wl_resource *resource; struct wl_list *resource_list; wl_fixed_t sx, sy; uint32_t msecs; if (!weston_touch_has_focus_resource(touch)) return; weston_view_from_global_fixed(touch->focus, x, y, &sx, &sy); resource_list = &touch->focus_resource_list; serial = wl_display_next_serial(display); msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &touch->timestamps_list, time); wl_touch_send_down(resource, serial, msecs, touch->focus->surface->resource, touch_id, sx, sy); } } static void default_grab_touch_down(struct weston_touch_grab *grab, const struct timespec *time, int touch_id, wl_fixed_t x, wl_fixed_t y) { weston_touch_send_down(grab->touch, time, touch_id, x, y); } /** Send wl_touch.up events to focused resources. * * \param touch The touch where the up events originates from. * \param time The timestamp of the event * \param touch_id The touch_id value of the event * * For every resource that is currently in focus, send a wl_touch.up event * with the passed parameters. The focused resources are the wl_touch * resources of the client which currently has the surface with touch focus. */ WL_EXPORT void weston_touch_send_up(struct weston_touch *touch, const struct timespec *time, int touch_id) { struct wl_display *display = touch->seat->compositor->wl_display; uint32_t serial; struct wl_resource *resource; struct wl_list *resource_list; uint32_t msecs; if (!weston_touch_has_focus_resource(touch)) return; resource_list = &touch->focus_resource_list; serial = wl_display_next_serial(display); msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &touch->timestamps_list, time); wl_touch_send_up(resource, serial, msecs, touch_id); } } static void default_grab_touch_up(struct weston_touch_grab *grab, const struct timespec *time, int touch_id) { weston_touch_send_up(grab->touch, time, touch_id); } /** Send wl_touch.motion events to focused resources. * * \param touch The touch where the motion events originates from. * \param time The timestamp of the event * \param touch_id The touch_id value of the event * \param x The x value of the event * \param y The y value of the event * * For every resource that is currently in focus, send a wl_touch.motion event * with the passed parameters. The focused resources are the wl_touch * resources of the client which currently has the surface with touch focus. */ WL_EXPORT void weston_touch_send_motion(struct weston_touch *touch, const struct timespec *time, int touch_id, wl_fixed_t x, wl_fixed_t y) { struct wl_resource *resource; struct wl_list *resource_list; wl_fixed_t sx, sy; uint32_t msecs; if (!weston_touch_has_focus_resource(touch)) return; weston_view_from_global_fixed(touch->focus, x, y, &sx, &sy); resource_list = &touch->focus_resource_list; msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &touch->timestamps_list, time); wl_touch_send_motion(resource, msecs, touch_id, sx, sy); } } static void default_grab_touch_motion(struct weston_touch_grab *grab, const struct timespec *time, int touch_id, wl_fixed_t x, wl_fixed_t y) { weston_touch_send_motion(grab->touch, time, touch_id, x, y); } /** Send wl_touch.frame events to focused resources. * * \param touch The touch where the frame events originates from. * * For every resource that is currently in focus, send a wl_touch.frame event. * The focused resources are the wl_touch resources of the client which * currently has the surface with touch focus. */ WL_EXPORT void weston_touch_send_frame(struct weston_touch *touch) { struct wl_resource *resource; if (!weston_touch_has_focus_resource(touch)) return; wl_resource_for_each(resource, &touch->focus_resource_list) wl_touch_send_frame(resource); } static void default_grab_touch_frame(struct weston_touch_grab *grab) { weston_touch_send_frame(grab->touch); } static void default_grab_touch_cancel(struct weston_touch_grab *grab) { } static const struct weston_touch_grab_interface default_touch_grab_interface = { default_grab_touch_down, default_grab_touch_up, default_grab_touch_motion, default_grab_touch_frame, default_grab_touch_cancel, }; /** Check if the keyboard has focused resources. * * \param keyboard The keyboard to check for focused resources. * \return Whether or not this keyboard has focused resources */ WL_EXPORT bool weston_keyboard_has_focus_resource(struct weston_keyboard *keyboard) { if (!keyboard->focus) return false; if (wl_list_empty(&keyboard->focus_resource_list)) return false; return true; } /** Send wl_keyboard.key events to focused resources. * * \param keyboard The keyboard where the key events originates from. * \param time The timestamp of the event * \param key The key value of the event * \param state The state enum value of the event * * For every resource that is currently in focus, send a wl_keyboard.key event * with the passed parameters. The focused resources are the wl_keyboard * resources of the client which currently has the surface with keyboard focus. */ WL_EXPORT void weston_keyboard_send_key(struct weston_keyboard *keyboard, const struct timespec *time, uint32_t key, enum wl_keyboard_key_state state) { struct wl_resource *resource; struct wl_display *display = keyboard->seat->compositor->wl_display; uint32_t serial; struct wl_list *resource_list; uint32_t msecs; if (!weston_keyboard_has_focus_resource(keyboard)) return; resource_list = &keyboard->focus_resource_list; serial = wl_display_next_serial(display); msecs = timespec_to_msec(time); wl_resource_for_each(resource, resource_list) { send_timestamps_for_input_resource(resource, &keyboard->timestamps_list, time); wl_keyboard_send_key(resource, serial, msecs, key, state); } }; static void default_grab_keyboard_key(struct weston_keyboard_grab *grab, const struct timespec *time, uint32_t key, uint32_t state) { weston_keyboard_send_key(grab->keyboard, time, key, state); } static void send_modifiers_to_resource(struct weston_keyboard *keyboard, struct wl_resource *resource, uint32_t serial) { wl_keyboard_send_modifiers(resource, serial, keyboard->modifiers.mods_depressed, keyboard->modifiers.mods_latched, keyboard->modifiers.mods_locked, keyboard->modifiers.group); } static void send_modifiers_to_client_in_list(struct wl_client *client, struct wl_list *list, uint32_t serial, struct weston_keyboard *keyboard) { struct wl_resource *resource; wl_resource_for_each(resource, list) { if (wl_resource_get_client(resource) == client) send_modifiers_to_resource(keyboard, resource, serial); } } static struct weston_pointer_client * find_pointer_client_for_surface(struct weston_pointer *pointer, struct weston_surface *surface) { struct wl_client *client; if (!surface) return NULL; if (!surface->resource) return NULL; client = wl_resource_get_client(surface->resource); return weston_pointer_get_pointer_client(pointer, client); } static struct weston_pointer_client * find_pointer_client_for_view(struct weston_pointer *pointer, struct weston_view *view) { if (!view) return NULL; return find_pointer_client_for_surface(pointer, view->surface); } static struct wl_resource * find_resource_for_surface(struct wl_list *list, struct weston_surface *surface) { if (!surface) return NULL; if (!surface->resource) return NULL; return wl_resource_find_for_client(list, wl_resource_get_client(surface->resource)); } /** Send wl_keyboard.modifiers events to focused resources and pointer * focused resources. * * \param keyboard The keyboard where the modifiers events originates from. * \param serial The serial of the event * \param mods_depressed The mods_depressed value of the event * \param mods_latched The mods_latched value of the event * \param mods_locked The mods_locked value of the event * \param group The group value of the event * * For every resource that is currently in focus, send a wl_keyboard.modifiers * event with the passed parameters. The focused resources are the wl_keyboard * resources of the client which currently has the surface with keyboard focus. * This also sends wl_keyboard.modifiers events to the wl_keyboard resources of * the client having pointer focus (if different from the keyboard focus client). */ WL_EXPORT void weston_keyboard_send_modifiers(struct weston_keyboard *keyboard, uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group) { struct weston_pointer *pointer = weston_seat_get_pointer(keyboard->seat); if (weston_keyboard_has_focus_resource(keyboard)) { struct wl_list *resource_list; struct wl_resource *resource; resource_list = &keyboard->focus_resource_list; wl_resource_for_each(resource, resource_list) { wl_keyboard_send_modifiers(resource, serial, mods_depressed, mods_latched, mods_locked, group); } } if (pointer && pointer->focus && pointer->focus->surface->resource && pointer->focus->surface != keyboard->focus) { struct wl_client *pointer_client = wl_resource_get_client(pointer->focus->surface->resource); send_modifiers_to_client_in_list(pointer_client, &keyboard->resource_list, serial, keyboard); } } static void default_grab_keyboard_modifiers(struct weston_keyboard_grab *grab, uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, uint32_t mods_locked, uint32_t group) { weston_keyboard_send_modifiers(grab->keyboard, serial, mods_depressed, mods_latched, mods_locked, group); } static void default_grab_keyboard_cancel(struct weston_keyboard_grab *grab) { } static const struct weston_keyboard_grab_interface default_keyboard_grab_interface = { default_grab_keyboard_key, default_grab_keyboard_modifiers, default_grab_keyboard_cancel, }; static void pointer_unmap_sprite(struct weston_pointer *pointer) { struct weston_surface *surface = pointer->sprite->surface; if (weston_surface_is_mapped(surface)) weston_surface_unmap(surface); wl_list_remove(&pointer->sprite_destroy_listener.link); surface->committed = NULL; surface->committed_private = NULL; weston_surface_set_label_func(surface, NULL); weston_view_destroy(pointer->sprite); pointer->sprite = NULL; } static void pointer_handle_sprite_destroy(struct wl_listener *listener, void *data) { struct weston_pointer *pointer = container_of(listener, struct weston_pointer, sprite_destroy_listener); pointer->sprite = NULL; } static void weston_pointer_reset_state(struct weston_pointer *pointer) { pointer->button_count = 0; } static void weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data); static struct weston_pointer * weston_pointer_create(struct weston_seat *seat) { struct weston_pointer *pointer; pointer = zalloc(sizeof *pointer); if (pointer == NULL) return NULL; wl_list_init(&pointer->pointer_clients); weston_pointer_set_default_grab(pointer, seat->compositor->default_pointer_grab); wl_list_init(&pointer->focus_resource_listener.link); pointer->focus_resource_listener.notify = pointer_focus_resource_destroyed; pointer->default_grab.pointer = pointer; pointer->grab = &pointer->default_grab; wl_signal_init(&pointer->motion_signal); wl_signal_init(&pointer->focus_signal); wl_list_init(&pointer->focus_view_listener.link); wl_signal_init(&pointer->destroy_signal); wl_list_init(&pointer->timestamps_list); pointer->sprite_destroy_listener.notify = pointer_handle_sprite_destroy; /* FIXME: Pick better co-ords. */ pointer->x = wl_fixed_from_int(100); pointer->y = wl_fixed_from_int(100); pointer->output_destroy_listener.notify = weston_pointer_handle_output_destroy; wl_signal_add(&seat->compositor->output_destroyed_signal, &pointer->output_destroy_listener); pointer->sx = wl_fixed_from_int(-1000000); pointer->sy = wl_fixed_from_int(-1000000); return pointer; } static void weston_pointer_destroy(struct weston_pointer *pointer) { struct weston_pointer_client *pointer_client, *tmp; wl_signal_emit(&pointer->destroy_signal, pointer); if (pointer->sprite) pointer_unmap_sprite(pointer); wl_list_for_each_safe(pointer_client, tmp, &pointer->pointer_clients, link) { wl_list_remove(&pointer_client->link); weston_pointer_client_destroy(pointer_client); } wl_list_remove(&pointer->focus_resource_listener.link); wl_list_remove(&pointer->focus_view_listener.link); wl_list_remove(&pointer->output_destroy_listener.link); wl_list_remove(&pointer->timestamps_list); free(pointer); } void weston_pointer_set_default_grab(struct weston_pointer *pointer, const struct weston_pointer_grab_interface *interface) { if (interface) pointer->default_grab.interface = interface; else pointer->default_grab.interface = &default_pointer_grab_interface; } static struct weston_keyboard * weston_keyboard_create(void) { struct weston_keyboard *keyboard; keyboard = zalloc(sizeof *keyboard); if (keyboard == NULL) return NULL; wl_list_init(&keyboard->resource_list); wl_list_init(&keyboard->focus_resource_list); wl_list_init(&keyboard->focus_resource_listener.link); keyboard->focus_resource_listener.notify = keyboard_focus_resource_destroyed; wl_array_init(&keyboard->keys); keyboard->default_grab.interface = &default_keyboard_grab_interface; keyboard->default_grab.keyboard = keyboard; keyboard->grab = &keyboard->default_grab; wl_signal_init(&keyboard->focus_signal); wl_list_init(&keyboard->timestamps_list); return keyboard; } static void weston_xkb_info_destroy(struct weston_xkb_info *xkb_info); static void weston_keyboard_destroy(struct weston_keyboard *keyboard) { struct wl_resource *resource; wl_resource_for_each(resource, &keyboard->resource_list) { wl_resource_set_user_data(resource, NULL); } wl_resource_for_each(resource, &keyboard->focus_resource_list) { wl_resource_set_user_data(resource, NULL); } wl_list_remove(&keyboard->resource_list); wl_list_remove(&keyboard->focus_resource_list); xkb_state_unref(keyboard->xkb_state.state); if (keyboard->xkb_info) weston_xkb_info_destroy(keyboard->xkb_info); xkb_keymap_unref(keyboard->pending_keymap); wl_array_release(&keyboard->keys); wl_list_remove(&keyboard->focus_resource_listener.link); wl_list_remove(&keyboard->timestamps_list); free(keyboard); } static void weston_touch_reset_state(struct weston_touch *touch) { touch->num_tp = 0; } static struct weston_touch * weston_touch_create(void) { struct weston_touch *touch; touch = zalloc(sizeof *touch); if (touch == NULL) return NULL; wl_list_init(&touch->device_list); wl_list_init(&touch->resource_list); wl_list_init(&touch->focus_resource_list); wl_list_init(&touch->focus_view_listener.link); touch->focus_view_listener.notify = touch_focus_view_destroyed; wl_list_init(&touch->focus_resource_listener.link); touch->focus_resource_listener.notify = touch_focus_resource_destroyed; touch->default_grab.interface = &default_touch_grab_interface; touch->default_grab.touch = touch; touch->grab = &touch->default_grab; wl_signal_init(&touch->focus_signal); wl_list_init(&touch->timestamps_list); return touch; } static void weston_touch_destroy(struct weston_touch *touch) { struct wl_resource *resource; assert(wl_list_empty(&touch->device_list)); wl_resource_for_each(resource, &touch->resource_list) { wl_resource_set_user_data(resource, NULL); } wl_resource_for_each(resource, &touch->focus_resource_list) { wl_resource_set_user_data(resource, NULL); } wl_list_remove(&touch->resource_list); wl_list_remove(&touch->focus_resource_list); wl_list_remove(&touch->focus_view_listener.link); wl_list_remove(&touch->focus_resource_listener.link); wl_list_remove(&touch->timestamps_list); free(touch); } static void seat_send_updated_caps(struct weston_seat *seat) { enum wl_seat_capability caps = 0; struct wl_resource *resource; if (seat->pointer_device_count > 0) caps |= WL_SEAT_CAPABILITY_POINTER; if (seat->keyboard_device_count > 0) caps |= WL_SEAT_CAPABILITY_KEYBOARD; if (seat->touch_device_count > 0) caps |= WL_SEAT_CAPABILITY_TOUCH; wl_resource_for_each(resource, &seat->base_resource_list) { wl_seat_send_capabilities(resource, caps); } wl_signal_emit(&seat->updated_caps_signal, seat); } /** Clear the pointer focus * * \param pointer the pointer to clear focus for. * * This can be used to unset pointer focus and set the co-ordinates to the * arbitrary values we use for the no focus case. * * There's no requirement to use this function. For example, passing the * results of a weston_compositor_pick_view() directly to * weston_pointer_set_focus() will do the right thing when no view is found. */ WL_EXPORT void weston_pointer_clear_focus(struct weston_pointer *pointer) { weston_pointer_set_focus(pointer, NULL, wl_fixed_from_int(-1000000), wl_fixed_from_int(-1000000)); } WL_EXPORT void weston_pointer_set_focus(struct weston_pointer *pointer, struct weston_view *view, wl_fixed_t sx, wl_fixed_t sy) { struct weston_pointer_client *pointer_client; struct weston_keyboard *kbd = weston_seat_get_keyboard(pointer->seat); struct wl_resource *resource; struct wl_resource *surface_resource; struct wl_display *display = pointer->seat->compositor->wl_display; uint32_t serial; struct wl_list *focus_resource_list; int refocus = 0; if ((!pointer->focus && view) || (pointer->focus && !view) || (pointer->focus && pointer->focus->surface != view->surface) || pointer->sx != sx || pointer->sy != sy) refocus = 1; if (pointer->focus_client && refocus) { focus_resource_list = &pointer->focus_client->pointer_resources; if (!wl_list_empty(focus_resource_list)) { serial = wl_display_next_serial(display); surface_resource = pointer->focus->surface->resource; wl_resource_for_each(resource, focus_resource_list) { wl_pointer_send_leave(resource, serial, surface_resource); pointer_send_frame(resource); } } pointer->focus_client = NULL; } pointer_client = find_pointer_client_for_view(pointer, view); if (pointer_client && refocus) { struct wl_client *surface_client = pointer_client->client; serial = wl_display_next_serial(display); if (kbd && kbd->focus != view->surface) send_modifiers_to_client_in_list(surface_client, &kbd->resource_list, serial, kbd); pointer->focus_client = pointer_client; focus_resource_list = &pointer->focus_client->pointer_resources; wl_resource_for_each(resource, focus_resource_list) { wl_pointer_send_enter(resource, serial, view->surface->resource, sx, sy); pointer_send_frame(resource); } pointer->focus_serial = serial; } wl_list_remove(&pointer->focus_view_listener.link); wl_list_init(&pointer->focus_view_listener.link); wl_list_remove(&pointer->focus_resource_listener.link); wl_list_init(&pointer->focus_resource_listener.link); if (view) wl_signal_add(&view->destroy_signal, &pointer->focus_view_listener); if (view && view->surface->resource) wl_resource_add_destroy_listener(view->surface->resource, &pointer->focus_resource_listener); pointer->focus = view; pointer->focus_view_listener.notify = pointer_focus_view_destroyed; pointer->sx = sx; pointer->sy = sy; assert(view || sx == wl_fixed_from_int(-1000000)); assert(view || sy == wl_fixed_from_int(-1000000)); wl_signal_emit(&pointer->focus_signal, pointer); } static void send_enter_to_resource_list(struct wl_list *list, struct weston_keyboard *keyboard, struct weston_surface *surface, uint32_t serial) { struct wl_resource *resource; wl_resource_for_each(resource, list) { send_modifiers_to_resource(keyboard, resource, serial); wl_keyboard_send_enter(resource, serial, surface->resource, &keyboard->keys); } } WL_EXPORT void weston_keyboard_set_focus(struct weston_keyboard *keyboard, struct weston_surface *surface) { struct weston_seat *seat = keyboard->seat; struct wl_resource *resource; struct wl_display *display = keyboard->seat->compositor->wl_display; uint32_t serial; struct wl_list *focus_resource_list; /* Keyboard focus on a surface without a client is equivalent to NULL * focus as nothing would react to the keyboard events anyway. * Just set focus to NULL instead - the destroy listener hangs on the * wl_resource anyway. */ if (surface && !surface->resource) surface = NULL; focus_resource_list = &keyboard->focus_resource_list; if (!wl_list_empty(focus_resource_list) && keyboard->focus != surface) { serial = wl_display_next_serial(display); wl_resource_for_each(resource, focus_resource_list) { wl_keyboard_send_leave(resource, serial, keyboard->focus->resource); } move_resources(&keyboard->resource_list, focus_resource_list); } if (find_resource_for_surface(&keyboard->resource_list, surface) && keyboard->focus != surface) { struct wl_client *surface_client = wl_resource_get_client(surface->resource); serial = wl_display_next_serial(display); move_resources_for_client(focus_resource_list, &keyboard->resource_list, surface_client); send_enter_to_resource_list(focus_resource_list, keyboard, surface, serial); keyboard->focus_serial = serial; } if (seat->saved_kbd_focus) { wl_list_remove(&seat->saved_kbd_focus_listener.link); seat->saved_kbd_focus = NULL; } wl_list_remove(&keyboard->focus_resource_listener.link); wl_list_init(&keyboard->focus_resource_listener.link); if (surface) wl_resource_add_destroy_listener(surface->resource, &keyboard->focus_resource_listener); keyboard->focus = surface; wl_signal_emit(&keyboard->focus_signal, keyboard); } /* Users of this function must manually manage the keyboard focus */ WL_EXPORT void weston_keyboard_start_grab(struct weston_keyboard *keyboard, struct weston_keyboard_grab *grab) { keyboard->grab = grab; grab->keyboard = keyboard; } WL_EXPORT void weston_keyboard_end_grab(struct weston_keyboard *keyboard) { keyboard->grab = &keyboard->default_grab; } static void weston_keyboard_cancel_grab(struct weston_keyboard *keyboard) { keyboard->grab->interface->cancel(keyboard->grab); } WL_EXPORT void weston_pointer_start_grab(struct weston_pointer *pointer, struct weston_pointer_grab *grab) { pointer->grab = grab; grab->pointer = pointer; pointer->grab->interface->focus(pointer->grab); } WL_EXPORT void weston_pointer_end_grab(struct weston_pointer *pointer) { pointer->grab = &pointer->default_grab; pointer->grab->interface->focus(pointer->grab); } static void weston_pointer_cancel_grab(struct weston_pointer *pointer) { pointer->grab->interface->cancel(pointer->grab); } WL_EXPORT void weston_touch_start_grab(struct weston_touch *touch, struct weston_touch_grab *grab) { touch->grab = grab; grab->touch = touch; } WL_EXPORT void weston_touch_end_grab(struct weston_touch *touch) { touch->grab = &touch->default_grab; } static void weston_touch_cancel_grab(struct weston_touch *touch) { touch->grab->interface->cancel(touch->grab); } static void weston_pointer_clamp_for_output(struct weston_pointer *pointer, struct weston_output *output, wl_fixed_t *fx, wl_fixed_t *fy) { int x, y; x = wl_fixed_to_int(*fx); y = wl_fixed_to_int(*fy); if (x < output->x) *fx = wl_fixed_from_int(output->x); else if (x >= output->x + output->width) *fx = wl_fixed_from_int(output->x + output->width - 1); if (y < output->y) *fy = wl_fixed_from_int(output->y); else if (y >= output->y + output->height) *fy = wl_fixed_from_int(output->y + output->height - 1); } WL_EXPORT void weston_pointer_clamp(struct weston_pointer *pointer, wl_fixed_t *fx, wl_fixed_t *fy) { struct weston_compositor *ec = pointer->seat->compositor; struct weston_output *output, *prev = NULL; int x, y, old_x, old_y, valid = 0; x = wl_fixed_to_int(*fx); y = wl_fixed_to_int(*fy); old_x = wl_fixed_to_int(pointer->x); old_y = wl_fixed_to_int(pointer->y); wl_list_for_each(output, &ec->output_list, link) { if (pointer->seat->output && pointer->seat->output != output) continue; if (pixman_region32_contains_point(&output->region, x, y, NULL)) valid = 1; if (pixman_region32_contains_point(&output->region, old_x, old_y, NULL)) prev = output; } if (!prev) prev = pointer->seat->output; if (prev && !valid) weston_pointer_clamp_for_output(pointer, prev, fx, fy); } static void weston_pointer_move_to(struct weston_pointer *pointer, wl_fixed_t x, wl_fixed_t y) { int32_t ix, iy; weston_pointer_clamp (pointer, &x, &y); pointer->x = x; pointer->y = y; ix = wl_fixed_to_int(x); iy = wl_fixed_to_int(y); if (pointer->sprite) { weston_view_set_position(pointer->sprite, ix - pointer->hotspot_x, iy - pointer->hotspot_y); weston_view_schedule_repaint(pointer->sprite); } pointer->grab->interface->focus(pointer->grab); wl_signal_emit(&pointer->motion_signal, pointer); } WL_EXPORT void weston_pointer_move(struct weston_pointer *pointer, struct weston_pointer_motion_event *event) { wl_fixed_t x, y; weston_pointer_motion_to_abs(pointer, event, &x, &y); weston_pointer_move_to(pointer, x, y); } /** Verify if the pointer is in a valid position and move it if it isn't. */ static void weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data) { struct weston_pointer *pointer; struct weston_compositor *ec; struct weston_output *output, *closest = NULL; int x, y, distance, min = INT_MAX; wl_fixed_t fx, fy; pointer = container_of(listener, struct weston_pointer, output_destroy_listener); ec = pointer->seat->compositor; x = wl_fixed_to_int(pointer->x); y = wl_fixed_to_int(pointer->y); wl_list_for_each(output, &ec->output_list, link) { if (pixman_region32_contains_point(&output->region, x, y, NULL)) return; /* Aproximante the distance from the pointer to the center of * the output. */ distance = abs(output->x + output->width / 2 - x) + abs(output->y + output->height / 2 - y); if (distance < min) { min = distance; closest = output; } } /* Nothing to do if there's no output left. */ if (!closest) return; fx = pointer->x; fy = pointer->y; weston_pointer_clamp_for_output(pointer, closest, &fx, &fy); weston_pointer_move_to(pointer, fx, fy); } WL_EXPORT void notify_motion(struct weston_seat *seat, const struct timespec *time, struct weston_pointer_motion_event *event) { struct weston_compositor *ec = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); weston_compositor_wake(ec); pointer->grab->interface->motion(pointer->grab, time, event); } static void run_modifier_bindings(struct weston_seat *seat, uint32_t old, uint32_t new) { struct weston_compositor *compositor = seat->compositor; struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); uint32_t diff; unsigned int i; struct { uint32_t xkb; enum weston_keyboard_modifier weston; } mods[] = { { keyboard->xkb_info->ctrl_mod, MODIFIER_CTRL }, { keyboard->xkb_info->alt_mod, MODIFIER_ALT }, { keyboard->xkb_info->super_mod, MODIFIER_SUPER }, { keyboard->xkb_info->shift_mod, MODIFIER_SHIFT }, }; diff = new & ~old; for (i = 0; i < ARRAY_LENGTH(mods); i++) { if (diff & (1 << mods[i].xkb)) weston_compositor_run_modifier_binding(compositor, keyboard, mods[i].weston, WL_KEYBOARD_KEY_STATE_PRESSED); } diff = old & ~new; for (i = 0; i < ARRAY_LENGTH(mods); i++) { if (diff & (1 << mods[i].xkb)) weston_compositor_run_modifier_binding(compositor, keyboard, mods[i].weston, WL_KEYBOARD_KEY_STATE_RELEASED); } } WL_EXPORT void notify_motion_absolute(struct weston_seat *seat, const struct timespec *time, double x, double y) { struct weston_compositor *ec = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); struct weston_pointer_motion_event event = { 0 }; weston_compositor_wake(ec); event = (struct weston_pointer_motion_event) { .mask = WESTON_POINTER_MOTION_ABS, .x = x, .y = y, }; pointer->grab->interface->motion(pointer->grab, time, &event); } static unsigned int peek_next_activate_serial(struct weston_compositor *c) { unsigned serial = c->activate_serial + 1; return serial == 0 ? 1 : serial; } static void inc_activate_serial(struct weston_compositor *c) { c->activate_serial = peek_next_activate_serial (c); } WL_EXPORT void weston_view_activate(struct weston_view *view, struct weston_seat *seat, uint32_t flags) { struct weston_compositor *compositor = seat->compositor; if (flags & WESTON_ACTIVATE_FLAG_CLICKED) { view->click_to_activate_serial = peek_next_activate_serial(compositor); } weston_seat_set_keyboard_focus(seat, view->surface); } WL_EXPORT void notify_button(struct weston_seat *seat, const struct timespec *time, int32_t button, enum wl_pointer_button_state state) { struct weston_compositor *compositor = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); if (state == WL_POINTER_BUTTON_STATE_PRESSED) { weston_compositor_idle_inhibit(compositor); if (pointer->button_count == 0) { pointer->grab_button = button; pointer->grab_time = *time; pointer->grab_x = pointer->x; pointer->grab_y = pointer->y; } pointer->button_count++; } else { weston_compositor_idle_release(compositor); pointer->button_count--; } weston_compositor_run_button_binding(compositor, pointer, time, button, state); pointer->grab->interface->button(pointer->grab, time, button, state); if (pointer->button_count == 1) pointer->grab_serial = wl_display_get_serial(compositor->wl_display); } WL_EXPORT void notify_axis(struct weston_seat *seat, const struct timespec *time, struct weston_pointer_axis_event *event) { struct weston_compositor *compositor = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); weston_compositor_wake(compositor); if (weston_compositor_run_axis_binding(compositor, pointer, time, event)) return; pointer->grab->interface->axis(pointer->grab, time, event); } WL_EXPORT void notify_axis_source(struct weston_seat *seat, uint32_t source) { struct weston_compositor *compositor = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); weston_compositor_wake(compositor); pointer->grab->interface->axis_source(pointer->grab, source); } WL_EXPORT void notify_pointer_frame(struct weston_seat *seat) { struct weston_compositor *compositor = seat->compositor; struct weston_pointer *pointer = weston_seat_get_pointer(seat); weston_compositor_wake(compositor); pointer->grab->interface->frame(pointer->grab); } WL_EXPORT int weston_keyboard_set_locks(struct weston_keyboard *keyboard, uint32_t mask, uint32_t value) { uint32_t serial; xkb_mod_mask_t mods_depressed, mods_latched, mods_locked, group; xkb_mod_mask_t num, caps; /* We don't want the leds to go out of sync with the actual state * so if the backend has no way to change the leds don't try to * change the state */ if (!keyboard->seat->led_update) return -1; mods_depressed = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_DEPRESSED); mods_latched = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_LATCHED); mods_locked = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_LOCKED); group = xkb_state_serialize_group(keyboard->xkb_state.state, XKB_STATE_EFFECTIVE); num = (1 << keyboard->xkb_info->mod2_mod); caps = (1 << keyboard->xkb_info->caps_mod); if (mask & WESTON_NUM_LOCK) { if (value & WESTON_NUM_LOCK) mods_locked |= num; else mods_locked &= ~num; } if (mask & WESTON_CAPS_LOCK) { if (value & WESTON_CAPS_LOCK) mods_locked |= caps; else mods_locked &= ~caps; } xkb_state_update_mask(keyboard->xkb_state.state, mods_depressed, mods_latched, mods_locked, 0, 0, group); serial = wl_display_next_serial( keyboard->seat->compositor->wl_display); notify_modifiers(keyboard->seat, serial); return 0; } WL_EXPORT void notify_modifiers(struct weston_seat *seat, uint32_t serial) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_keyboard_grab *grab = keyboard->grab; uint32_t mods_depressed, mods_latched, mods_locked, group; uint32_t mods_lookup; enum weston_led leds = 0; int changed = 0; /* Serialize and update our internal state, checking to see if it's * different to the previous state. */ mods_depressed = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_MODS_DEPRESSED); mods_latched = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_MODS_LATCHED); mods_locked = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_MODS_LOCKED); group = xkb_state_serialize_layout(keyboard->xkb_state.state, XKB_STATE_LAYOUT_EFFECTIVE); if (mods_depressed != keyboard->modifiers.mods_depressed || mods_latched != keyboard->modifiers.mods_latched || mods_locked != keyboard->modifiers.mods_locked || group != keyboard->modifiers.group) changed = 1; run_modifier_bindings(seat, keyboard->modifiers.mods_depressed, mods_depressed); keyboard->modifiers.mods_depressed = mods_depressed; keyboard->modifiers.mods_latched = mods_latched; keyboard->modifiers.mods_locked = mods_locked; keyboard->modifiers.group = group; /* And update the modifier_state for bindings. */ mods_lookup = mods_depressed | mods_latched; seat->modifier_state = 0; if (mods_lookup & (1 << keyboard->xkb_info->ctrl_mod)) seat->modifier_state |= MODIFIER_CTRL; if (mods_lookup & (1 << keyboard->xkb_info->alt_mod)) seat->modifier_state |= MODIFIER_ALT; if (mods_lookup & (1 << keyboard->xkb_info->super_mod)) seat->modifier_state |= MODIFIER_SUPER; if (mods_lookup & (1 << keyboard->xkb_info->shift_mod)) seat->modifier_state |= MODIFIER_SHIFT; /* Finally, notify the compositor that LEDs have changed. */ if (xkb_state_led_index_is_active(keyboard->xkb_state.state, keyboard->xkb_info->num_led)) leds |= LED_NUM_LOCK; if (xkb_state_led_index_is_active(keyboard->xkb_state.state, keyboard->xkb_info->caps_led)) leds |= LED_CAPS_LOCK; if (xkb_state_led_index_is_active(keyboard->xkb_state.state, keyboard->xkb_info->scroll_led)) leds |= LED_SCROLL_LOCK; if (leds != keyboard->xkb_state.leds && seat->led_update) seat->led_update(seat, leds); keyboard->xkb_state.leds = leds; if (changed) { grab->interface->modifiers(grab, serial, keyboard->modifiers.mods_depressed, keyboard->modifiers.mods_latched, keyboard->modifiers.mods_locked, keyboard->modifiers.group); } } static void update_modifier_state(struct weston_seat *seat, uint32_t serial, uint32_t key, enum wl_keyboard_key_state state) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); enum xkb_key_direction direction; if (state == WL_KEYBOARD_KEY_STATE_PRESSED) direction = XKB_KEY_DOWN; else direction = XKB_KEY_UP; /* Offset the keycode by 8, as the evdev XKB rules reflect X's * broken keycode system, which starts at 8. */ xkb_state_update_key(keyboard->xkb_state.state, key + 8, direction); notify_modifiers(seat, serial); } WL_EXPORT void weston_keyboard_send_keymap(struct weston_keyboard *kbd, struct wl_resource *resource) { struct weston_xkb_info *xkb_info = kbd->xkb_info; int fd; size_t size; enum ro_anonymous_file_mapmode mapmode; if (wl_resource_get_version(resource) < 7) mapmode = RO_ANONYMOUS_FILE_MAPMODE_SHARED; else mapmode = RO_ANONYMOUS_FILE_MAPMODE_PRIVATE; fd = os_ro_anonymous_file_get_fd(xkb_info->keymap_rofile, mapmode); size = os_ro_anonymous_file_size(xkb_info->keymap_rofile); if (fd == -1) { weston_log("creating a keymap file failed: %s\n", strerror(errno)); return; } wl_keyboard_send_keymap(resource, WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1, fd, size); os_ro_anonymous_file_put_fd(fd); } static void send_modifiers(struct wl_resource *resource, uint32_t serial, struct weston_keyboard *keyboard) { wl_keyboard_send_modifiers(resource, serial, keyboard->modifiers.mods_depressed, keyboard->modifiers.mods_latched, keyboard->modifiers.mods_locked, keyboard->modifiers.group); } static struct weston_xkb_info * weston_xkb_info_create(struct xkb_keymap *keymap); static void update_keymap(struct weston_seat *seat) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct wl_resource *resource; struct weston_xkb_info *xkb_info; struct xkb_state *state; xkb_mod_mask_t latched_mods; xkb_mod_mask_t locked_mods; xkb_info = weston_xkb_info_create(keyboard->pending_keymap); xkb_keymap_unref(keyboard->pending_keymap); keyboard->pending_keymap = NULL; if (!xkb_info) { weston_log("failed to create XKB info\n"); return; } state = xkb_state_new(xkb_info->keymap); if (!state) { weston_log("failed to initialise XKB state\n"); weston_xkb_info_destroy(xkb_info); return; } latched_mods = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_MODS_LATCHED); locked_mods = xkb_state_serialize_mods(keyboard->xkb_state.state, XKB_STATE_MODS_LOCKED); xkb_state_update_mask(state, 0, /* depressed */ latched_mods, locked_mods, 0, 0, 0); weston_xkb_info_destroy(keyboard->xkb_info); keyboard->xkb_info = xkb_info; xkb_state_unref(keyboard->xkb_state.state); keyboard->xkb_state.state = state; wl_resource_for_each(resource, &keyboard->resource_list) weston_keyboard_send_keymap(keyboard, resource); wl_resource_for_each(resource, &keyboard->focus_resource_list) weston_keyboard_send_keymap(keyboard, resource); notify_modifiers(seat, wl_display_next_serial(seat->compositor->wl_display)); if (!latched_mods && !locked_mods) return; wl_resource_for_each(resource, &keyboard->resource_list) send_modifiers(resource, wl_display_get_serial(seat->compositor->wl_display), keyboard); wl_resource_for_each(resource, &keyboard->focus_resource_list) send_modifiers(resource, wl_display_get_serial(seat->compositor->wl_display), keyboard); } WL_EXPORT void notify_key(struct weston_seat *seat, const struct timespec *time, uint32_t key, enum wl_keyboard_key_state state, enum weston_key_state_update update_state) { struct weston_compositor *compositor = seat->compositor; struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_keyboard_grab *grab = keyboard->grab; uint32_t *k, *end; if (state == WL_KEYBOARD_KEY_STATE_PRESSED) { weston_compositor_idle_inhibit(compositor); } else { weston_compositor_idle_release(compositor); } end = keyboard->keys.data + keyboard->keys.size; for (k = keyboard->keys.data; k < end; k++) { if (*k == key) { /* Ignore server-generated repeats. */ if (state == WL_KEYBOARD_KEY_STATE_PRESSED) return; *k = *--end; } } keyboard->keys.size = (void *) end - keyboard->keys.data; if (state == WL_KEYBOARD_KEY_STATE_PRESSED) { k = wl_array_add(&keyboard->keys, sizeof *k); *k = key; } if (grab == &keyboard->default_grab || grab == &keyboard->input_method_grab) { weston_compositor_run_key_binding(compositor, keyboard, time, key, state); grab = keyboard->grab; } grab->interface->key(grab, time, key, state); if (keyboard->pending_keymap && keyboard->keys.size == 0) update_keymap(seat); if (update_state == STATE_UPDATE_AUTOMATIC) { update_modifier_state(seat, wl_display_get_serial(compositor->wl_display), key, state); } keyboard->grab_serial = wl_display_get_serial(compositor->wl_display); if (state == WL_KEYBOARD_KEY_STATE_PRESSED) { keyboard->grab_time = *time; keyboard->grab_key = key; } } WL_EXPORT void notify_pointer_focus(struct weston_seat *seat, struct weston_output *output, double x, double y) { struct weston_pointer *pointer = weston_seat_get_pointer(seat); if (output) { weston_pointer_move_to(pointer, wl_fixed_from_double(x), wl_fixed_from_double(y)); } else { /* FIXME: We should call weston_pointer_set_focus(seat, * NULL) here, but somehow that breaks re-entry... */ } } static void destroy_device_saved_kbd_focus(struct wl_listener *listener, void *data) { struct weston_seat *ws; ws = container_of(listener, struct weston_seat, saved_kbd_focus_listener); ws->saved_kbd_focus = NULL; } WL_EXPORT void notify_keyboard_focus_in(struct weston_seat *seat, struct wl_array *keys, enum weston_key_state_update update_state) { struct weston_compositor *compositor = seat->compositor; struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_surface *surface; uint32_t *k, serial; serial = wl_display_next_serial(compositor->wl_display); wl_array_copy(&keyboard->keys, keys); wl_array_for_each(k, &keyboard->keys) { weston_compositor_idle_inhibit(compositor); if (update_state == STATE_UPDATE_AUTOMATIC) update_modifier_state(seat, serial, *k, WL_KEYBOARD_KEY_STATE_PRESSED); } surface = seat->saved_kbd_focus; if (surface) { weston_keyboard_set_focus(keyboard, surface); } } WL_EXPORT void notify_keyboard_focus_out(struct weston_seat *seat) { struct weston_compositor *compositor = seat->compositor; struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_pointer *pointer = weston_seat_get_pointer(seat); struct weston_surface *focus = keyboard->focus; uint32_t *k, serial; serial = wl_display_next_serial(compositor->wl_display); wl_array_for_each(k, &keyboard->keys) { weston_compositor_idle_release(compositor); update_modifier_state(seat, serial, *k, WL_KEYBOARD_KEY_STATE_RELEASED); } seat->modifier_state = 0; weston_keyboard_set_focus(keyboard, NULL); weston_keyboard_cancel_grab(keyboard); if (pointer) weston_pointer_cancel_grab(pointer); if (focus) { seat->saved_kbd_focus = focus; seat->saved_kbd_focus_listener.notify = destroy_device_saved_kbd_focus; wl_signal_add(&focus->destroy_signal, &seat->saved_kbd_focus_listener); } } WL_EXPORT void weston_touch_set_focus(struct weston_touch *touch, struct weston_view *view) { struct wl_list *focus_resource_list; focus_resource_list = &touch->focus_resource_list; if (view && touch->focus && touch->focus->surface == view->surface) { touch->focus = view; return; } wl_list_remove(&touch->focus_resource_listener.link); wl_list_init(&touch->focus_resource_listener.link); wl_list_remove(&touch->focus_view_listener.link); wl_list_init(&touch->focus_view_listener.link); if (!wl_list_empty(focus_resource_list)) { move_resources(&touch->resource_list, focus_resource_list); } if (view) { struct wl_client *surface_client; if (!view->surface->resource) { touch->focus = NULL; return; } surface_client = wl_resource_get_client(view->surface->resource); move_resources_for_client(focus_resource_list, &touch->resource_list, surface_client); wl_resource_add_destroy_listener(view->surface->resource, &touch->focus_resource_listener); wl_signal_add(&view->destroy_signal, &touch->focus_view_listener); } touch->focus = view; } static void process_touch_normal(struct weston_touch_device *device, const struct timespec *time, int touch_id, double double_x, double double_y, int touch_type) { struct weston_touch *touch = device->aggregate; struct weston_touch_grab *grab = device->aggregate->grab; struct weston_compositor *ec = device->aggregate->seat->compositor; struct weston_view *ev; wl_fixed_t sx, sy; wl_fixed_t x = wl_fixed_from_double(double_x); wl_fixed_t y = wl_fixed_from_double(double_y); /* Update grab's global coordinates. */ if (touch_id == touch->grab_touch_id && touch_type != WL_TOUCH_UP) { touch->grab_x = x; touch->grab_y = y; } switch (touch_type) { case WL_TOUCH_DOWN: /* the first finger down picks the view, and all further go * to that view for the remainder of the touch session i.e. * until all touch points are up again. */ if (touch->num_tp == 1) { ev = weston_compositor_pick_view(ec, x, y, &sx, &sy); weston_touch_set_focus(touch, ev); } else if (!touch->focus) { /* Unexpected condition: We have non-initial touch but * there is no focused surface. */ weston_log("touch event received with %d points down " "but no surface focused\n", touch->num_tp); return; } weston_compositor_run_touch_binding(ec, touch, time, touch_type); grab->interface->down(grab, time, touch_id, x, y); if (touch->num_tp == 1) { touch->grab_serial = wl_display_get_serial(ec->wl_display); touch->grab_touch_id = touch_id; touch->grab_time = *time; touch->grab_x = x; touch->grab_y = y; } break; case WL_TOUCH_MOTION: ev = touch->focus; if (!ev) break; grab->interface->motion(grab, time, touch_id, x, y); break; case WL_TOUCH_UP: grab->interface->up(grab, time, touch_id); if (touch->num_tp == 0) weston_touch_set_focus(touch, NULL); break; } } static enum weston_touch_mode get_next_touch_mode(enum weston_touch_mode from) { switch (from) { case WESTON_TOUCH_MODE_PREP_NORMAL: return WESTON_TOUCH_MODE_NORMAL; case WESTON_TOUCH_MODE_PREP_CALIB: return WESTON_TOUCH_MODE_CALIB; case WESTON_TOUCH_MODE_NORMAL: case WESTON_TOUCH_MODE_CALIB: return from; } return WESTON_TOUCH_MODE_NORMAL; } /** Global touch mode update * * If no seat has a touch down and the compositor is in a PREP touch mode, * set the compositor to the goal touch mode. * * Calls calibrator if touch mode changed. */ static void weston_compositor_update_touch_mode(struct weston_compositor *compositor) { struct weston_seat *seat; struct weston_touch *touch; enum weston_touch_mode goal; wl_list_for_each(seat, &compositor->seat_list, link) { touch = weston_seat_get_touch(seat); if (!touch) continue; if (touch->num_tp > 0) return; } goal = get_next_touch_mode(compositor->touch_mode); if (compositor->touch_mode != goal) { compositor->touch_mode = goal; touch_calibrator_mode_changed(compositor); } } /** Start transition to normal touch event handling * * The touch event mode changes when all touches on all touch devices have * been lifted. If no touches are currently down, the transition is immediate. * * \sa weston_touch_mode */ void weston_compositor_set_touch_mode_normal(struct weston_compositor *compositor) { switch (compositor->touch_mode) { case WESTON_TOUCH_MODE_PREP_NORMAL: case WESTON_TOUCH_MODE_NORMAL: return; case WESTON_TOUCH_MODE_PREP_CALIB: compositor->touch_mode = WESTON_TOUCH_MODE_NORMAL; touch_calibrator_mode_changed(compositor); return; case WESTON_TOUCH_MODE_CALIB: compositor->touch_mode = WESTON_TOUCH_MODE_PREP_NORMAL; } weston_compositor_update_touch_mode(compositor); } /** Start transition to calibrator touch event handling * * The touch event mode changes when all touches on all touch devices have * been lifted. If no touches are currently down, the transition is immediate. * * \sa weston_touch_mode */ void weston_compositor_set_touch_mode_calib(struct weston_compositor *compositor) { switch (compositor->touch_mode) { case WESTON_TOUCH_MODE_PREP_CALIB: case WESTON_TOUCH_MODE_CALIB: assert(0); return; case WESTON_TOUCH_MODE_PREP_NORMAL: compositor->touch_mode = WESTON_TOUCH_MODE_CALIB; touch_calibrator_mode_changed(compositor); return; case WESTON_TOUCH_MODE_NORMAL: compositor->touch_mode = WESTON_TOUCH_MODE_PREP_CALIB; } weston_compositor_update_touch_mode(compositor); } /** Feed in touch down, motion, and up events, calibratable device. * * It assumes always the correct cycle sequence until it gets here: touch_down * → touch_update → ... → touch_update → touch_end. The driver is responsible * for sending along such order. * * \param device The physical device that generated the event. * \param time The event timestamp. * \param touch_id ID for the touch point of this event (multi-touch). * \param x X coordinate in compositor global space. * \param y Y coordinate in compositor global space. * \param norm Normalized device X, Y coordinates in calibration space, or NULL. * \param touch_type Either WL_TOUCH_DOWN, WL_TOUCH_UP, or WL_TOUCH_MOTION. * * Coordinates double_x and double_y are used for normal operation. * * Coordinates norm are only used for touch device calibration. If and only if * the weston_touch_device does not support calibrating, norm must be NULL. * * The calibration space is the normalized coordinate space * [0.0, 1.0]×[0.0, 1.0] of the weston_touch_device. This is assumed to * map to the similar normalized coordinate space of the associated * weston_output. */ WL_EXPORT void notify_touch_normalized(struct weston_touch_device *device, const struct timespec *time, int touch_id, double x, double y, const struct weston_point2d_device_normalized *norm, int touch_type) { struct weston_seat *seat = device->aggregate->seat; struct weston_touch *touch = device->aggregate; if (touch_type != WL_TOUCH_UP) { if (weston_touch_device_can_calibrate(device)) assert(norm != NULL); else assert(norm == NULL); } /* Update touchpoints count regardless of the current mode. */ switch (touch_type) { case WL_TOUCH_DOWN: weston_compositor_idle_inhibit(seat->compositor); touch->num_tp++; break; case WL_TOUCH_UP: if (touch->num_tp == 0) { /* This can happen if we start out with one or * more fingers on the touch screen, in which * case we didn't get the corresponding down * event. */ weston_log("Unmatched touch up event on seat %s, device %s\n", seat->seat_name, device->syspath); return; } weston_compositor_idle_release(seat->compositor); touch->num_tp--; break; default: break; } /* Properly forward the touch event */ switch (weston_touch_device_get_mode(device)) { case WESTON_TOUCH_MODE_NORMAL: case WESTON_TOUCH_MODE_PREP_CALIB: process_touch_normal(device, time, touch_id, x, y, touch_type); break; case WESTON_TOUCH_MODE_CALIB: case WESTON_TOUCH_MODE_PREP_NORMAL: notify_touch_calibrator(device, time, touch_id, norm, touch_type); break; } } WL_EXPORT void notify_touch_frame(struct weston_touch_device *device) { struct weston_touch_grab *grab; switch (weston_touch_device_get_mode(device)) { case WESTON_TOUCH_MODE_NORMAL: case WESTON_TOUCH_MODE_PREP_CALIB: grab = device->aggregate->grab; grab->interface->frame(grab); break; case WESTON_TOUCH_MODE_CALIB: case WESTON_TOUCH_MODE_PREP_NORMAL: notify_touch_calibrator_frame(device); break; } weston_compositor_update_touch_mode(device->aggregate->seat->compositor); } WL_EXPORT void notify_touch_cancel(struct weston_touch_device *device) { struct weston_touch_grab *grab; switch (weston_touch_device_get_mode(device)) { case WESTON_TOUCH_MODE_NORMAL: case WESTON_TOUCH_MODE_PREP_CALIB: grab = device->aggregate->grab; grab->interface->cancel(grab); break; case WESTON_TOUCH_MODE_CALIB: case WESTON_TOUCH_MODE_PREP_NORMAL: notify_touch_calibrator_cancel(device); break; } weston_compositor_update_touch_mode(device->aggregate->seat->compositor); } static int pointer_cursor_surface_get_label(struct weston_surface *surface, char *buf, size_t len) { return snprintf(buf, len, "cursor"); } static void pointer_cursor_surface_committed(struct weston_surface *es, int32_t dx, int32_t dy) { struct weston_pointer *pointer = es->committed_private; int x, y; if (es->width == 0) return; assert(es == pointer->sprite->surface); pointer->hotspot_x -= dx; pointer->hotspot_y -= dy; x = wl_fixed_to_int(pointer->x) - pointer->hotspot_x; y = wl_fixed_to_int(pointer->y) - pointer->hotspot_y; weston_view_set_position(pointer->sprite, x, y); empty_region(&es->pending.input); empty_region(&es->input); if (!weston_surface_is_mapped(es)) { weston_layer_entry_insert(&es->compositor->cursor_layer.view_list, &pointer->sprite->layer_link); weston_view_update_transform(pointer->sprite); es->is_mapped = true; pointer->sprite->is_mapped = true; } } static void pointer_set_cursor(struct wl_client *client, struct wl_resource *resource, uint32_t serial, struct wl_resource *surface_resource, int32_t x, int32_t y) { struct weston_pointer *pointer = wl_resource_get_user_data(resource); struct weston_surface *surface = NULL; if (!pointer) return; if (surface_resource) surface = wl_resource_get_user_data(surface_resource); if (pointer->focus == NULL) return; /* pointer->focus->surface->resource can be NULL. Surfaces like the black_surface used in shell.c for fullscreen don't have a resource, but can still have focus */ if (pointer->focus->surface->resource == NULL) return; if (wl_resource_get_client(pointer->focus->surface->resource) != client) return; if (pointer->focus_serial - serial > UINT32_MAX / 2) return; if (!surface) { if (pointer->sprite) pointer_unmap_sprite(pointer); return; } if (pointer->sprite && pointer->sprite->surface == surface && pointer->hotspot_x == x && pointer->hotspot_y == y) return; if (!pointer->sprite || pointer->sprite->surface != surface) { if (weston_surface_set_role(surface, "wl_pointer-cursor", resource, WL_POINTER_ERROR_ROLE) < 0) return; if (pointer->sprite) pointer_unmap_sprite(pointer); wl_signal_add(&surface->destroy_signal, &pointer->sprite_destroy_listener); surface->committed = pointer_cursor_surface_committed; surface->committed_private = pointer; weston_surface_set_label_func(surface, pointer_cursor_surface_get_label); pointer->sprite = weston_view_create(surface); } pointer->hotspot_x = x; pointer->hotspot_y = y; if (surface->buffer_ref.buffer) { pointer_cursor_surface_committed(surface, 0, 0); weston_view_schedule_repaint(pointer->sprite); } } static void pointer_release(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct wl_pointer_interface pointer_interface = { pointer_set_cursor, pointer_release }; static void seat_get_pointer(struct wl_client *client, struct wl_resource *resource, uint32_t id) { struct weston_seat *seat = wl_resource_get_user_data(resource); /* We use the pointer_state directly, which means we'll * give a wl_pointer if the seat has ever had one - even though * the spec explicitly states that this request only takes effect * if the seat has the pointer capability. * * This prevents a race between the compositor sending new * capabilities and the client trying to use the old ones. */ struct weston_pointer *pointer = seat ? seat->pointer_state : NULL; struct wl_resource *cr; struct weston_pointer_client *pointer_client; cr = wl_resource_create(client, &wl_pointer_interface, wl_resource_get_version(resource), id); if (cr == NULL) { wl_client_post_no_memory(client); return; } wl_list_init(wl_resource_get_link(cr)); wl_resource_set_implementation(cr, &pointer_interface, pointer, unbind_pointer_client_resource); /* If we don't have a pointer_state, the resource is inert, so there * is nothing more to set up */ if (!pointer) return; pointer_client = weston_pointer_ensure_pointer_client(pointer, client); if (!pointer_client) { wl_client_post_no_memory(client); return; } wl_list_insert(&pointer_client->pointer_resources, wl_resource_get_link(cr)); if (pointer->focus && pointer->focus->surface->resource && wl_resource_get_client(pointer->focus->surface->resource) == client) { wl_fixed_t sx, sy; weston_view_from_global_fixed(pointer->focus, pointer->x, pointer->y, &sx, &sy); wl_pointer_send_enter(cr, pointer->focus_serial, pointer->focus->surface->resource, sx, sy); pointer_send_frame(cr); } } static void destroy_keyboard_resource(struct wl_resource *resource) { struct weston_keyboard *keyboard = wl_resource_get_user_data(resource); wl_list_remove(wl_resource_get_link(resource)); if (keyboard) { remove_input_resource_from_timestamps(resource, &keyboard->timestamps_list); } } static void keyboard_release(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct wl_keyboard_interface keyboard_interface = { keyboard_release }; static bool should_send_modifiers_to_client(struct weston_seat *seat, struct wl_client *client) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_pointer *pointer = weston_seat_get_pointer(seat); if (keyboard && keyboard->focus && keyboard->focus->resource && wl_resource_get_client(keyboard->focus->resource) == client) return true; if (pointer && pointer->focus && pointer->focus->surface->resource && wl_resource_get_client(pointer->focus->surface->resource) == client) return true; return false; } static void seat_get_keyboard(struct wl_client *client, struct wl_resource *resource, uint32_t id) { struct weston_seat *seat = wl_resource_get_user_data(resource); /* We use the keyboard_state directly, which means we'll * give a wl_keyboard if the seat has ever had one - even though * the spec explicitly states that this request only takes effect * if the seat has the keyboard capability. * * This prevents a race between the compositor sending new * capabilities and the client trying to use the old ones. */ struct weston_keyboard *keyboard = seat ? seat->keyboard_state : NULL; struct wl_resource *cr; cr = wl_resource_create(client, &wl_keyboard_interface, wl_resource_get_version(resource), id); if (cr == NULL) { wl_client_post_no_memory(client); return; } wl_list_init(wl_resource_get_link(cr)); wl_resource_set_implementation(cr, &keyboard_interface, keyboard, destroy_keyboard_resource); /* If we don't have a keyboard_state, the resource is inert, so there * is nothing more to set up */ if (!keyboard) return; /* May be moved to focused list later by either * weston_keyboard_set_focus or directly if this client is already * focused */ wl_list_insert(&keyboard->resource_list, wl_resource_get_link(cr)); if (wl_resource_get_version(cr) >= WL_KEYBOARD_REPEAT_INFO_SINCE_VERSION) { wl_keyboard_send_repeat_info(cr, seat->compositor->kb_repeat_rate, seat->compositor->kb_repeat_delay); } weston_keyboard_send_keymap(keyboard, cr); if (should_send_modifiers_to_client(seat, client)) { send_modifiers_to_resource(keyboard, cr, keyboard->focus_serial); } if (keyboard->focus && keyboard->focus->resource && wl_resource_get_client(keyboard->focus->resource) == client) { struct weston_surface *surface = (struct weston_surface *)keyboard->focus; wl_list_remove(wl_resource_get_link(cr)); wl_list_insert(&keyboard->focus_resource_list, wl_resource_get_link(cr)); wl_keyboard_send_enter(cr, keyboard->focus_serial, surface->resource, &keyboard->keys); /* If this is the first keyboard resource for this * client... */ if (keyboard->focus_resource_list.prev == wl_resource_get_link(cr)) wl_data_device_set_keyboard_focus(seat); } } static void destroy_touch_resource(struct wl_resource *resource) { struct weston_touch *touch = wl_resource_get_user_data(resource); wl_list_remove(wl_resource_get_link(resource)); if (touch) { remove_input_resource_from_timestamps(resource, &touch->timestamps_list); } } static void touch_release(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct wl_touch_interface touch_interface = { touch_release }; static void seat_get_touch(struct wl_client *client, struct wl_resource *resource, uint32_t id) { struct weston_seat *seat = wl_resource_get_user_data(resource); /* We use the touch_state directly, which means we'll * give a wl_touch if the seat has ever had one - even though * the spec explicitly states that this request only takes effect * if the seat has the touch capability. * * This prevents a race between the compositor sending new * capabilities and the client trying to use the old ones. */ struct weston_touch *touch = seat ? seat->touch_state : NULL; struct wl_resource *cr; cr = wl_resource_create(client, &wl_touch_interface, wl_resource_get_version(resource), id); if (cr == NULL) { wl_client_post_no_memory(client); return; } wl_list_init(wl_resource_get_link(cr)); wl_resource_set_implementation(cr, &touch_interface, touch, destroy_touch_resource); /* If we don't have a touch_state, the resource is inert, so there * is nothing more to set up */ if (!touch) return; if (touch->focus && wl_resource_get_client(touch->focus->surface->resource) == client) { wl_list_insert(&touch->focus_resource_list, wl_resource_get_link(cr)); } else { wl_list_insert(&touch->resource_list, wl_resource_get_link(cr)); } } static void seat_release(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct wl_seat_interface seat_interface = { seat_get_pointer, seat_get_keyboard, seat_get_touch, seat_release, }; static void bind_seat(struct wl_client *client, void *data, uint32_t version, uint32_t id) { struct weston_seat *seat = data; struct wl_resource *resource; enum wl_seat_capability caps = 0; resource = wl_resource_create(client, &wl_seat_interface, version, id); wl_list_insert(&seat->base_resource_list, wl_resource_get_link(resource)); wl_resource_set_implementation(resource, &seat_interface, data, unbind_resource); if (weston_seat_get_pointer(seat)) caps |= WL_SEAT_CAPABILITY_POINTER; if (weston_seat_get_keyboard(seat)) caps |= WL_SEAT_CAPABILITY_KEYBOARD; if (weston_seat_get_touch(seat)) caps |= WL_SEAT_CAPABILITY_TOUCH; wl_seat_send_capabilities(resource, caps); if (version >= WL_SEAT_NAME_SINCE_VERSION) wl_seat_send_name(resource, seat->seat_name); } static void relative_pointer_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct zwp_relative_pointer_v1_interface relative_pointer_interface = { relative_pointer_destroy }; static void relative_pointer_manager_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static void relative_pointer_manager_get_relative_pointer(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *pointer_resource) { struct weston_pointer *pointer = wl_resource_get_user_data(pointer_resource); struct weston_pointer_client *pointer_client; struct wl_resource *cr; cr = wl_resource_create(client, &zwp_relative_pointer_v1_interface, wl_resource_get_version(resource), id); if (cr == NULL) { wl_client_post_no_memory(client); return; } pointer_client = weston_pointer_ensure_pointer_client(pointer, client); if (!pointer_client) { wl_client_post_no_memory(client); return; } wl_list_insert(&pointer_client->relative_pointer_resources, wl_resource_get_link(cr)); wl_resource_set_implementation(cr, &relative_pointer_interface, pointer, unbind_pointer_client_resource); } static const struct zwp_relative_pointer_manager_v1_interface relative_pointer_manager = { relative_pointer_manager_destroy, relative_pointer_manager_get_relative_pointer, }; static void bind_relative_pointer_manager(struct wl_client *client, void *data, uint32_t version, uint32_t id) { struct weston_compositor *compositor = data; struct wl_resource *resource; resource = wl_resource_create(client, &zwp_relative_pointer_manager_v1_interface, 1, id); wl_resource_set_implementation(resource, &relative_pointer_manager, compositor, NULL); } WL_EXPORT int weston_compositor_set_xkb_rule_names(struct weston_compositor *ec, struct xkb_rule_names *names) { if (ec->xkb_context == NULL) { ec->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); if (ec->xkb_context == NULL) { weston_log("failed to create XKB context\n"); return -1; } } if (names) ec->xkb_names = *names; if (!ec->xkb_names.rules) ec->xkb_names.rules = strdup("evdev"); if (!ec->xkb_names.model) ec->xkb_names.model = strdup("pc105"); if (!ec->xkb_names.layout) ec->xkb_names.layout = strdup("us"); return 0; } static void weston_xkb_info_destroy(struct weston_xkb_info *xkb_info) { if (--xkb_info->ref_count > 0) return; xkb_keymap_unref(xkb_info->keymap); os_ro_anonymous_file_destroy(xkb_info->keymap_rofile); free(xkb_info); } void weston_compositor_xkb_destroy(struct weston_compositor *ec) { free((char *) ec->xkb_names.rules); free((char *) ec->xkb_names.model); free((char *) ec->xkb_names.layout); free((char *) ec->xkb_names.variant); free((char *) ec->xkb_names.options); if (ec->xkb_info) weston_xkb_info_destroy(ec->xkb_info); xkb_context_unref(ec->xkb_context); } static struct weston_xkb_info * weston_xkb_info_create(struct xkb_keymap *keymap) { char *keymap_string; size_t keymap_size; struct weston_xkb_info *xkb_info = zalloc(sizeof *xkb_info); if (xkb_info == NULL) return NULL; xkb_info->keymap = xkb_keymap_ref(keymap); xkb_info->ref_count = 1; xkb_info->shift_mod = xkb_keymap_mod_get_index(xkb_info->keymap, XKB_MOD_NAME_SHIFT); xkb_info->caps_mod = xkb_keymap_mod_get_index(xkb_info->keymap, XKB_MOD_NAME_CAPS); xkb_info->ctrl_mod = xkb_keymap_mod_get_index(xkb_info->keymap, XKB_MOD_NAME_CTRL); xkb_info->alt_mod = xkb_keymap_mod_get_index(xkb_info->keymap, XKB_MOD_NAME_ALT); xkb_info->mod2_mod = xkb_keymap_mod_get_index(xkb_info->keymap, "Mod2"); xkb_info->mod3_mod = xkb_keymap_mod_get_index(xkb_info->keymap, "Mod3"); xkb_info->super_mod = xkb_keymap_mod_get_index(xkb_info->keymap, XKB_MOD_NAME_LOGO); xkb_info->mod5_mod = xkb_keymap_mod_get_index(xkb_info->keymap, "Mod5"); xkb_info->num_led = xkb_keymap_led_get_index(xkb_info->keymap, XKB_LED_NAME_NUM); xkb_info->caps_led = xkb_keymap_led_get_index(xkb_info->keymap, XKB_LED_NAME_CAPS); xkb_info->scroll_led = xkb_keymap_led_get_index(xkb_info->keymap, XKB_LED_NAME_SCROLL); keymap_string = xkb_keymap_get_as_string(xkb_info->keymap, XKB_KEYMAP_FORMAT_TEXT_V1); if (keymap_string == NULL) { weston_log("failed to get string version of keymap\n"); goto err_keymap; } keymap_size = strlen(keymap_string) + 1; xkb_info->keymap_rofile = os_ro_anonymous_file_create(keymap_size, keymap_string); free(keymap_string); if (!xkb_info->keymap_rofile) { weston_log("failed to create anonymous file for keymap\n"); goto err_keymap; } return xkb_info; err_keymap: xkb_keymap_unref(xkb_info->keymap); free(xkb_info); return NULL; } static int weston_compositor_build_global_keymap(struct weston_compositor *ec) { struct xkb_keymap *keymap; if (ec->xkb_info != NULL) return 0; keymap = xkb_keymap_new_from_names(ec->xkb_context, &ec->xkb_names, 0); if (keymap == NULL) { weston_log("failed to compile global XKB keymap\n"); weston_log(" tried rules %s, model %s, layout %s, variant %s, " "options %s\n", ec->xkb_names.rules, ec->xkb_names.model, ec->xkb_names.layout, ec->xkb_names.variant, ec->xkb_names.options); return -1; } ec->xkb_info = weston_xkb_info_create(keymap); xkb_keymap_unref(keymap); if (ec->xkb_info == NULL) return -1; return 0; } WL_EXPORT void weston_seat_update_keymap(struct weston_seat *seat, struct xkb_keymap *keymap) { struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); if (!keyboard || !keymap) return; xkb_keymap_unref(keyboard->pending_keymap); keyboard->pending_keymap = xkb_keymap_ref(keymap); if (keyboard->keys.size == 0) update_keymap(seat); } WL_EXPORT int weston_seat_init_keyboard(struct weston_seat *seat, struct xkb_keymap *keymap) { struct weston_keyboard *keyboard; if (seat->keyboard_state) { seat->keyboard_device_count += 1; if (seat->keyboard_device_count == 1) seat_send_updated_caps(seat); return 0; } keyboard = weston_keyboard_create(); if (keyboard == NULL) { weston_log("failed to allocate weston keyboard struct\n"); return -1; } if (keymap != NULL) { keyboard->xkb_info = weston_xkb_info_create(keymap); if (keyboard->xkb_info == NULL) goto err; } else { if (weston_compositor_build_global_keymap(seat->compositor) < 0) goto err; keyboard->xkb_info = seat->compositor->xkb_info; keyboard->xkb_info->ref_count++; } keyboard->xkb_state.state = xkb_state_new(keyboard->xkb_info->keymap); if (keyboard->xkb_state.state == NULL) { weston_log("failed to initialise XKB state\n"); goto err; } keyboard->xkb_state.leds = 0; seat->keyboard_state = keyboard; seat->keyboard_device_count = 1; keyboard->seat = seat; seat_send_updated_caps(seat); return 0; err: if (keyboard->xkb_info) weston_xkb_info_destroy(keyboard->xkb_info); free(keyboard); return -1; } static void weston_keyboard_reset_state(struct weston_keyboard *keyboard) { struct weston_seat *seat = keyboard->seat; struct xkb_state *state; state = xkb_state_new(keyboard->xkb_info->keymap); if (!state) { weston_log("failed to reset XKB state\n"); return; } xkb_state_unref(keyboard->xkb_state.state); keyboard->xkb_state.state = state; keyboard->xkb_state.leds = 0; seat->modifier_state = 0; } WL_EXPORT void weston_seat_release_keyboard(struct weston_seat *seat) { seat->keyboard_device_count--; assert(seat->keyboard_device_count >= 0); if (seat->keyboard_device_count == 0) { weston_keyboard_set_focus(seat->keyboard_state, NULL); weston_keyboard_cancel_grab(seat->keyboard_state); weston_keyboard_reset_state(seat->keyboard_state); seat_send_updated_caps(seat); } } WL_EXPORT void weston_seat_init_pointer(struct weston_seat *seat) { struct weston_pointer *pointer; if (seat->pointer_state) { seat->pointer_device_count += 1; if (seat->pointer_device_count == 1) seat_send_updated_caps(seat); return; } pointer = weston_pointer_create(seat); if (pointer == NULL) return; seat->pointer_state = pointer; seat->pointer_device_count = 1; pointer->seat = seat; seat_send_updated_caps(seat); } WL_EXPORT void weston_seat_release_pointer(struct weston_seat *seat) { struct weston_pointer *pointer = seat->pointer_state; seat->pointer_device_count--; if (seat->pointer_device_count == 0) { weston_pointer_clear_focus(pointer); weston_pointer_cancel_grab(pointer); if (pointer->sprite) pointer_unmap_sprite(pointer); weston_pointer_reset_state(pointer); seat_send_updated_caps(seat); /* seat->pointer is intentionally not destroyed so that * a newly attached pointer on this seat will retain * the previous cursor co-ordinates. */ } } WL_EXPORT void weston_seat_init_touch(struct weston_seat *seat) { struct weston_touch *touch; if (seat->touch_state) { seat->touch_device_count += 1; if (seat->touch_device_count == 1) seat_send_updated_caps(seat); return; } touch = weston_touch_create(); if (touch == NULL) return; seat->touch_state = touch; seat->touch_device_count = 1; touch->seat = seat; seat_send_updated_caps(seat); } WL_EXPORT void weston_seat_release_touch(struct weston_seat *seat) { seat->touch_device_count--; if (seat->touch_device_count == 0) { weston_touch_set_focus(seat->touch_state, NULL); weston_touch_cancel_grab(seat->touch_state); weston_touch_reset_state(seat->touch_state); seat_send_updated_caps(seat); } } WL_EXPORT void weston_seat_init(struct weston_seat *seat, struct weston_compositor *ec, const char *seat_name) { memset(seat, 0, sizeof *seat); seat->selection_data_source = NULL; wl_list_init(&seat->base_resource_list); wl_signal_init(&seat->selection_signal); wl_list_init(&seat->drag_resource_list); wl_signal_init(&seat->destroy_signal); wl_signal_init(&seat->updated_caps_signal); seat->global = wl_global_create(ec->wl_display, &wl_seat_interface, MIN(wl_seat_interface.version, 7), seat, bind_seat); seat->compositor = ec; seat->modifier_state = 0; seat->seat_name = strdup(seat_name); wl_list_insert(ec->seat_list.prev, &seat->link); clipboard_create(seat); wl_signal_emit(&ec->seat_created_signal, seat); } WL_EXPORT void weston_seat_release(struct weston_seat *seat) { struct wl_resource *resource; wl_resource_for_each(resource, &seat->base_resource_list) { wl_resource_set_user_data(resource, NULL); } wl_resource_for_each(resource, &seat->drag_resource_list) { wl_resource_set_user_data(resource, NULL); } wl_list_remove(&seat->base_resource_list); wl_list_remove(&seat->drag_resource_list); wl_list_remove(&seat->link); if (seat->saved_kbd_focus) wl_list_remove(&seat->saved_kbd_focus_listener.link); if (seat->pointer_state) weston_pointer_destroy(seat->pointer_state); if (seat->keyboard_state) weston_keyboard_destroy(seat->keyboard_state); if (seat->touch_state) weston_touch_destroy(seat->touch_state); free (seat->seat_name); wl_global_destroy(seat->global); wl_signal_emit(&seat->destroy_signal, seat); } /** Get a seat's keyboard pointer * * \param seat The seat to query * \return The seat's keyboard pointer, or NULL if no keyboard is present * * The keyboard pointer for a seat isn't freed when all keyboards are removed, * so it should only be used when the seat's keyboard_device_count is greater * than zero. This function does that test and only returns a pointer * when a keyboard is present. */ WL_EXPORT struct weston_keyboard * weston_seat_get_keyboard(struct weston_seat *seat) { if (!seat) return NULL; if (seat->keyboard_device_count) return seat->keyboard_state; return NULL; } /** Get a seat's pointer pointer * * \param seat The seat to query * \return The seat's pointer pointer, or NULL if no pointer device is present * * The pointer pointer for a seat isn't freed when all mice are removed, * so it should only be used when the seat's pointer_device_count is greater * than zero. This function does that test and only returns a pointer * when a pointing device is present. */ WL_EXPORT struct weston_pointer * weston_seat_get_pointer(struct weston_seat *seat) { if (!seat) return NULL; if (seat->pointer_device_count) return seat->pointer_state; return NULL; } static const struct zwp_locked_pointer_v1_interface locked_pointer_interface; static const struct zwp_confined_pointer_v1_interface confined_pointer_interface; static enum pointer_constraint_type pointer_constraint_get_type(struct weston_pointer_constraint *constraint) { if (wl_resource_instance_of(constraint->resource, &zwp_locked_pointer_v1_interface, &locked_pointer_interface)) { return POINTER_CONSTRAINT_TYPE_LOCK; } else if (wl_resource_instance_of(constraint->resource, &zwp_confined_pointer_v1_interface, &confined_pointer_interface)) { return POINTER_CONSTRAINT_TYPE_CONFINE; } abort(); return 0; } static void pointer_constraint_notify_activated(struct weston_pointer_constraint *constraint) { struct wl_resource *resource = constraint->resource; switch (pointer_constraint_get_type(constraint)) { case POINTER_CONSTRAINT_TYPE_LOCK: zwp_locked_pointer_v1_send_locked(resource); break; case POINTER_CONSTRAINT_TYPE_CONFINE: zwp_confined_pointer_v1_send_confined(resource); break; } } static void pointer_constraint_notify_deactivated(struct weston_pointer_constraint *constraint) { struct wl_resource *resource = constraint->resource; switch (pointer_constraint_get_type(constraint)) { case POINTER_CONSTRAINT_TYPE_LOCK: zwp_locked_pointer_v1_send_unlocked(resource); break; case POINTER_CONSTRAINT_TYPE_CONFINE: zwp_confined_pointer_v1_send_unconfined(resource); break; } } static struct weston_pointer_constraint * get_pointer_constraint_for_pointer(struct weston_surface *surface, struct weston_pointer *pointer) { struct weston_pointer_constraint *constraint; wl_list_for_each(constraint, &surface->pointer_constraints, link) { if (constraint->pointer == pointer) return constraint; } return NULL; } /** Get a seat's touch pointer * * \param seat The seat to query * \return The seat's touch pointer, or NULL if no touch device is present * * The touch pointer for a seat isn't freed when all touch devices are removed, * so it should only be used when the seat's touch_device_count is greater * than zero. This function does that test and only returns a pointer * when a touch device is present. */ WL_EXPORT struct weston_touch * weston_seat_get_touch(struct weston_seat *seat) { if (!seat) return NULL; if (seat->touch_device_count) return seat->touch_state; return NULL; } /** Sets the keyboard focus to the given surface * * \param surface the surface to focus on * \param seat The seat to query */ WL_EXPORT void weston_seat_set_keyboard_focus(struct weston_seat *seat, struct weston_surface *surface) { struct weston_compositor *compositor = seat->compositor; struct weston_keyboard *keyboard = weston_seat_get_keyboard(seat); struct weston_surface_activation_data activation_data; if (keyboard && keyboard->focus != surface) { weston_keyboard_set_focus(keyboard, surface); wl_data_device_set_keyboard_focus(seat); } inc_activate_serial(compositor); activation_data = (struct weston_surface_activation_data) { .surface = surface, .seat = seat, }; wl_signal_emit(&compositor->activate_signal, &activation_data); } static void enable_pointer_constraint(struct weston_pointer_constraint *constraint, struct weston_view *view) { assert(constraint->view == NULL); constraint->view = view; pointer_constraint_notify_activated(constraint); weston_pointer_start_grab(constraint->pointer, &constraint->grab); wl_list_remove(&constraint->surface_destroy_listener.link); wl_list_init(&constraint->surface_destroy_listener.link); } static bool is_pointer_constraint_enabled(struct weston_pointer_constraint *constraint) { return constraint->view != NULL; } static void weston_pointer_constraint_disable(struct weston_pointer_constraint *constraint) { constraint->view = NULL; pointer_constraint_notify_deactivated(constraint); weston_pointer_end_grab(constraint->grab.pointer); } void weston_pointer_constraint_destroy(struct weston_pointer_constraint *constraint) { if (is_pointer_constraint_enabled(constraint)) weston_pointer_constraint_disable(constraint); wl_list_remove(&constraint->pointer_destroy_listener.link); wl_list_remove(&constraint->surface_destroy_listener.link); wl_list_remove(&constraint->surface_commit_listener.link); wl_list_remove(&constraint->surface_activate_listener.link); wl_resource_set_user_data(constraint->resource, NULL); pixman_region32_fini(&constraint->region); wl_list_remove(&constraint->link); free(constraint); } static void disable_pointer_constraint(struct weston_pointer_constraint *constraint) { switch (constraint->lifetime) { case ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_ONESHOT: weston_pointer_constraint_destroy(constraint); break; case ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT: weston_pointer_constraint_disable(constraint); break; } } static bool is_within_constraint_region(struct weston_pointer_constraint *constraint, wl_fixed_t sx, wl_fixed_t sy) { struct weston_surface *surface = constraint->surface; pixman_region32_t constraint_region; bool result; pixman_region32_init(&constraint_region); pixman_region32_intersect(&constraint_region, &surface->input, &constraint->region); result = pixman_region32_contains_point(&constraint_region, wl_fixed_to_int(sx), wl_fixed_to_int(sy), NULL); pixman_region32_fini(&constraint_region); return result; } static void maybe_enable_pointer_constraint(struct weston_pointer_constraint *constraint) { struct weston_surface *surface = constraint->surface; struct weston_view *vit; struct weston_view *view = NULL; struct weston_pointer *pointer = constraint->pointer; struct weston_keyboard *keyboard; struct weston_seat *seat = pointer->seat; int32_t x, y; /* Postpone if no view of the surface was most recently clicked. */ wl_list_for_each(vit, &surface->views, surface_link) { if (vit->click_to_activate_serial == surface->compositor->activate_serial) { view = vit; } } if (view == NULL) return; /* Postpone if surface doesn't have keyboard focus. */ keyboard = weston_seat_get_keyboard(seat); if (!keyboard || keyboard->focus != surface) return; /* Postpone constraint if the pointer is not within the * constraint region. */ weston_view_from_global(view, wl_fixed_to_int(pointer->x), wl_fixed_to_int(pointer->y), &x, &y); if (!is_within_constraint_region(constraint, wl_fixed_from_int(x), wl_fixed_from_int(y))) return; enable_pointer_constraint(constraint, view); } static void locked_pointer_grab_pointer_focus(struct weston_pointer_grab *grab) { } static void locked_pointer_grab_pointer_motion(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_motion_event *event) { pointer_send_relative_motion(grab->pointer, time, event); } static void locked_pointer_grab_pointer_button(struct weston_pointer_grab *grab, const struct timespec *time, uint32_t button, uint32_t state_w) { weston_pointer_send_button(grab->pointer, time, button, state_w); } static void locked_pointer_grab_pointer_axis(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_axis_event *event) { weston_pointer_send_axis(grab->pointer, time, event); } static void locked_pointer_grab_pointer_axis_source(struct weston_pointer_grab *grab, uint32_t source) { weston_pointer_send_axis_source(grab->pointer, source); } static void locked_pointer_grab_pointer_frame(struct weston_pointer_grab *grab) { weston_pointer_send_frame(grab->pointer); } static void locked_pointer_grab_pointer_cancel(struct weston_pointer_grab *grab) { struct weston_pointer_constraint *constraint = container_of(grab, struct weston_pointer_constraint, grab); disable_pointer_constraint(constraint); } static const struct weston_pointer_grab_interface locked_pointer_grab_interface = { locked_pointer_grab_pointer_focus, locked_pointer_grab_pointer_motion, locked_pointer_grab_pointer_button, locked_pointer_grab_pointer_axis, locked_pointer_grab_pointer_axis_source, locked_pointer_grab_pointer_frame, locked_pointer_grab_pointer_cancel, }; static void pointer_constraint_constrain_resource_destroyed(struct wl_resource *resource) { struct weston_pointer_constraint *constraint = wl_resource_get_user_data(resource); if (!constraint) return; weston_pointer_constraint_destroy(constraint); } static void pointer_constraint_surface_activate(struct wl_listener *listener, void *data) { struct weston_surface_activation_data *activation = data; struct weston_pointer *pointer; struct weston_surface *focus = activation->surface; struct weston_pointer_constraint *constraint = container_of(listener, struct weston_pointer_constraint, surface_activate_listener); bool is_constraint_surface; pointer = weston_seat_get_pointer(activation->seat); if (!pointer) return; is_constraint_surface = get_pointer_constraint_for_pointer(focus, pointer) == constraint; if (is_constraint_surface && !is_pointer_constraint_enabled(constraint)) maybe_enable_pointer_constraint(constraint); else if (!is_constraint_surface && is_pointer_constraint_enabled(constraint)) disable_pointer_constraint(constraint); } static void pointer_constraint_pointer_destroyed(struct wl_listener *listener, void *data) { struct weston_pointer_constraint *constraint = container_of(listener, struct weston_pointer_constraint, pointer_destroy_listener); weston_pointer_constraint_destroy(constraint); } static void pointer_constraint_surface_destroyed(struct wl_listener *listener, void *data) { struct weston_pointer_constraint *constraint = container_of(listener, struct weston_pointer_constraint, surface_destroy_listener); weston_pointer_constraint_destroy(constraint); } static void pointer_constraint_surface_committed(struct wl_listener *listener, void *data) { struct weston_pointer_constraint *constraint = container_of(listener, struct weston_pointer_constraint, surface_commit_listener); if (constraint->region_is_pending) { constraint->region_is_pending = false; pixman_region32_copy(&constraint->region, &constraint->region_pending); pixman_region32_fini(&constraint->region_pending); pixman_region32_init(&constraint->region_pending); } if (constraint->hint_is_pending) { constraint->hint_is_pending = false; constraint->hint_is_pending = true; constraint->hint_x = constraint->hint_x_pending; constraint->hint_y = constraint->hint_y_pending; } if (pointer_constraint_get_type(constraint) == POINTER_CONSTRAINT_TYPE_CONFINE && is_pointer_constraint_enabled(constraint)) maybe_warp_confined_pointer(constraint); } static struct weston_pointer_constraint * weston_pointer_constraint_create(struct weston_surface *surface, struct weston_pointer *pointer, struct weston_region *region, enum zwp_pointer_constraints_v1_lifetime lifetime, struct wl_resource *cr, const struct weston_pointer_grab_interface *grab_interface) { struct weston_pointer_constraint *constraint; constraint = zalloc(sizeof *constraint); if (!constraint) return NULL; constraint->lifetime = lifetime; pixman_region32_init(&constraint->region); pixman_region32_init(&constraint->region_pending); wl_list_insert(&surface->pointer_constraints, &constraint->link); constraint->surface = surface; constraint->pointer = pointer; constraint->resource = cr; constraint->grab.interface = grab_interface; if (region) { pixman_region32_copy(&constraint->region, ®ion->region); } else { pixman_region32_fini(&constraint->region); region_init_infinite(&constraint->region); } constraint->surface_activate_listener.notify = pointer_constraint_surface_activate; constraint->surface_destroy_listener.notify = pointer_constraint_surface_destroyed; constraint->surface_commit_listener.notify = pointer_constraint_surface_committed; constraint->pointer_destroy_listener.notify = pointer_constraint_pointer_destroyed; wl_signal_add(&surface->compositor->activate_signal, &constraint->surface_activate_listener); wl_signal_add(&pointer->destroy_signal, &constraint->pointer_destroy_listener); wl_signal_add(&surface->destroy_signal, &constraint->surface_destroy_listener); wl_signal_add(&surface->commit_signal, &constraint->surface_commit_listener); return constraint; } static void init_pointer_constraint(struct wl_resource *pointer_constraints_resource, uint32_t id, struct weston_surface *surface, struct weston_pointer *pointer, struct weston_region *region, enum zwp_pointer_constraints_v1_lifetime lifetime, const struct wl_interface *interface, const void *implementation, const struct weston_pointer_grab_interface *grab_interface) { struct wl_client *client = wl_resource_get_client(pointer_constraints_resource); struct wl_resource *cr; struct weston_pointer_constraint *constraint; if (pointer && get_pointer_constraint_for_pointer(surface, pointer)) { wl_resource_post_error(pointer_constraints_resource, ZWP_POINTER_CONSTRAINTS_V1_ERROR_ALREADY_CONSTRAINED, "the pointer has a lock/confine request on this surface"); return; } cr = wl_resource_create(client, interface, wl_resource_get_version(pointer_constraints_resource), id); if (cr == NULL) { wl_client_post_no_memory(client); return; } if (pointer) { constraint = weston_pointer_constraint_create(surface, pointer, region, lifetime, cr, grab_interface); if (constraint == NULL) { wl_client_post_no_memory(client); return; } } else { constraint = NULL; } wl_resource_set_implementation(cr, implementation, constraint, pointer_constraint_constrain_resource_destroyed); if (constraint) maybe_enable_pointer_constraint(constraint); } static void pointer_constraints_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static void locked_pointer_destroy(struct wl_client *client, struct wl_resource *resource) { struct weston_pointer_constraint *constraint = wl_resource_get_user_data(resource); wl_fixed_t x, y; if (constraint && constraint->view && constraint->hint_is_pending && is_within_constraint_region(constraint, constraint->hint_x, constraint->hint_y)) { weston_view_to_global_fixed(constraint->view, constraint->hint_x, constraint->hint_y, &x, &y); weston_pointer_move_to(constraint->pointer, x, y); } wl_resource_destroy(resource); } static void locked_pointer_set_cursor_position_hint(struct wl_client *client, struct wl_resource *resource, wl_fixed_t surface_x, wl_fixed_t surface_y) { struct weston_pointer_constraint *constraint = wl_resource_get_user_data(resource); /* Ignore a set cursor hint that was sent after the lock was cancelled. */ if (!constraint || !constraint->resource || constraint->resource != resource) return; constraint->hint_is_pending = true; constraint->hint_x_pending = surface_x; constraint->hint_y_pending = surface_y; } static void locked_pointer_set_region(struct wl_client *client, struct wl_resource *resource, struct wl_resource *region_resource) { struct weston_pointer_constraint *constraint = wl_resource_get_user_data(resource); struct weston_region *region = region_resource ? wl_resource_get_user_data(region_resource) : NULL; if (!constraint) return; if (region) { pixman_region32_copy(&constraint->region_pending, ®ion->region); } else { pixman_region32_fini(&constraint->region_pending); region_init_infinite(&constraint->region_pending); } constraint->region_is_pending = true; } static const struct zwp_locked_pointer_v1_interface locked_pointer_interface = { locked_pointer_destroy, locked_pointer_set_cursor_position_hint, locked_pointer_set_region, }; static void pointer_constraints_lock_pointer(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *surface_resource, struct wl_resource *pointer_resource, struct wl_resource *region_resource, uint32_t lifetime) { struct weston_surface *surface = wl_resource_get_user_data(surface_resource); struct weston_pointer *pointer = wl_resource_get_user_data(pointer_resource); struct weston_region *region = region_resource ? wl_resource_get_user_data(region_resource) : NULL; init_pointer_constraint(resource, id, surface, pointer, region, lifetime, &zwp_locked_pointer_v1_interface, &locked_pointer_interface, &locked_pointer_grab_interface); } static void confined_pointer_grab_pointer_focus(struct weston_pointer_grab *grab) { } static double vec2d_cross_product(struct vec2d a, struct vec2d b) { return a.x * b.y - a.y * b.x; } static struct vec2d vec2d_add(struct vec2d a, struct vec2d b) { return (struct vec2d) { .x = a.x + b.x, .y = a.y + b.y, }; } static struct vec2d vec2d_subtract(struct vec2d a, struct vec2d b) { return (struct vec2d) { .x = a.x - b.x, .y = a.y - b.y, }; } static struct vec2d vec2d_multiply_constant(double c, struct vec2d a) { return (struct vec2d) { .x = c * a.x, .y = c * a.y, }; } static bool lines_intersect(struct line *line1, struct line *line2, struct vec2d *intersection) { struct vec2d p = line1->a; struct vec2d r = vec2d_subtract(line1->b, line1->a); struct vec2d q = line2->a; struct vec2d s = vec2d_subtract(line2->b, line2->a); double rxs; double sxr; double t; double u; /* * The line (p, r) and (q, s) intersects where * * p + t r = q + u s * * Calculate t: * * (p + t r) × s = (q + u s) × s * p × s + t (r × s) = q × s + u (s × s) * p × s + t (r × s) = q × s * t (r × s) = q × s - p × s * t (r × s) = (q - p) × s * t = ((q - p) × s) / (r × s) * * Using the same method, for u we get: * * u = ((p - q) × r) / (s × r) */ rxs = vec2d_cross_product(r, s); sxr = vec2d_cross_product(s, r); /* If r × s = 0 then the lines are either parallel or collinear. */ if (fabs(rxs) < DBL_MIN) return false; t = vec2d_cross_product(vec2d_subtract(q, p), s) / rxs; u = vec2d_cross_product(vec2d_subtract(p, q), r) / sxr; /* The lines only intersect if 0 ≤ t ≤ 1 and 0 ≤ u ≤ 1. */ if (t < 0.0 || t > 1.0 || u < 0.0 || u > 1.0) return false; *intersection = vec2d_add(p, vec2d_multiply_constant(t, r)); return true; } static struct border * add_border(struct wl_array *array, double x1, double y1, double x2, double y2, enum motion_direction blocking_dir) { struct border *border = wl_array_add(array, sizeof *border); *border = (struct border) { .line = (struct line) { .a = (struct vec2d) { .x = x1, .y = y1, }, .b = (struct vec2d) { .x = x2, .y = y2, }, }, .blocking_dir = blocking_dir, }; return border; } static int compare_lines_x(const void *a, const void *b) { const struct border *border_a = a; const struct border *border_b = b; if (border_a->line.a.x == border_b->line.a.x) return border_a->line.b.x < border_b->line.b.x; else return border_a->line.a.x > border_b->line.a.x; } static void add_non_overlapping_edges(pixman_box32_t *boxes, int band_above_start, int band_below_start, int band_below_end, struct wl_array *borders) { int i; struct wl_array band_merge; struct border *border; struct border *prev_border; struct border *new_border; wl_array_init(&band_merge); /* Add bottom band of previous row, and top band of current row, and * sort them so lower left x coordinate comes first. If there are two * borders with the same left x coordinate, the wider one comes first. */ for (i = band_above_start; i < band_below_start; i++) { pixman_box32_t *box = &boxes[i]; add_border(&band_merge, box->x1, box->y2, box->x2, box->y2, MOTION_DIRECTION_POSITIVE_Y); } for (i = band_below_start; i < band_below_end; i++) { pixman_box32_t *box= &boxes[i]; add_border(&band_merge, box->x1, box->y1, box->x2, box->y1, MOTION_DIRECTION_NEGATIVE_Y); } qsort(band_merge.data, band_merge.size / sizeof *border, sizeof *border, compare_lines_x); /* Combine the two combined bands so that any overlapping border is * eliminated. */ prev_border = NULL; wl_array_for_each(border, &band_merge) { assert(border->line.a.y == border->line.b.y); assert(!prev_border || prev_border->line.a.y == border->line.a.y); assert(!prev_border || (prev_border->line.a.x != border->line.a.x || prev_border->line.b.x != border->line.b.x)); assert(!prev_border || prev_border->line.a.x <= border->line.a.x); if (prev_border && prev_border->line.a.x == border->line.a.x) { /* * ------------ + * ------- = * [ ]----- */ prev_border->line.a.x = border->line.b.x; } else if (prev_border && prev_border->line.b.x == border->line.b.x) { /* * ------------ + * ------ = * ------[ ] */ prev_border->line.b.x = border->line.a.x; } else if (prev_border && prev_border->line.b.x == border->line.a.x) { /* * -------- + * ------ = * -------------- */ prev_border->line.b.x = border->line.b.x; } else if (prev_border && prev_border->line.b.x >= border->line.a.x) { /* * --------------- + * ------ = * -----[ ]---- */ new_border = add_border(borders, border->line.b.x, border->line.b.y, prev_border->line.b.x, prev_border->line.b.y, prev_border->blocking_dir); prev_border->line.b.x = border->line.a.x; prev_border = new_border; } else { assert(!prev_border || prev_border->line.b.x < border->line.a.x); /* * First border or non-overlapping. * * ----- + * ----- = * ----- ----- */ new_border = wl_array_add(borders, sizeof *border); *new_border = *border; prev_border = new_border; } } wl_array_release(&band_merge); } static void add_band_bottom_edges(pixman_box32_t *boxes, int band_start, int band_end, struct wl_array *borders) { int i; for (i = band_start; i < band_end; i++) { add_border(borders, boxes[i].x1, boxes[i].y2, boxes[i].x2, boxes[i].y2, MOTION_DIRECTION_POSITIVE_Y); } } static void region_to_outline(pixman_region32_t *region, struct wl_array *borders) { pixman_box32_t *boxes; int num_boxes; int i; int top_most, bottom_most; int current_roof; int prev_top; int band_start, prev_band_start; /* * Remove any overlapping lines from the set of rectangles. Note that * pixman regions are grouped as rows of rectangles, where rectangles * in one row never touch or overlap and are all of the same height. * * -------- --- -------- --- * | | | | | | | | * ----------====---- --- ----------- ----- --- * | | => | | * ----==========--------- ----- ---------- * | | | | * ------------------- ------------------- * */ boxes = pixman_region32_rectangles(region, &num_boxes); prev_top = 0; top_most = boxes[0].y1; current_roof = top_most; bottom_most = boxes[num_boxes - 1].y2; band_start = 0; prev_band_start = 0; for (i = 0; i < num_boxes; i++) { /* Detect if there is a vertical empty space, and add the lower * level of the previous band if so was the case. */ if (i > 0 && boxes[i].y1 != prev_top && boxes[i].y1 != boxes[i - 1].y2) { current_roof = boxes[i].y1; add_band_bottom_edges(boxes, band_start, i, borders); } /* Special case adding the last band, since it won't be handled * by the band change detection below. */ if (boxes[i].y1 != current_roof && i == num_boxes - 1) { if (boxes[i].y1 != prev_top) { /* The last band is a single box, so we don't * have a prev_band_start to tell us when the * previous band started. */ add_non_overlapping_edges(boxes, band_start, i, i + 1, borders); } else { add_non_overlapping_edges(boxes, prev_band_start, band_start, i + 1, borders); } } /* Detect when passing a band and combine the top border of the * just passed band with the bottom band of the previous band. */ if (boxes[i].y1 != top_most && boxes[i].y1 != prev_top) { /* Combine the two passed bands. */ if (prev_top != current_roof) { add_non_overlapping_edges(boxes, prev_band_start, band_start, i, borders); } prev_band_start = band_start; band_start = i; } /* Add the top border if the box is part of the current roof. */ if (boxes[i].y1 == current_roof) { add_border(borders, boxes[i].x1, boxes[i].y1, boxes[i].x2, boxes[i].y1, MOTION_DIRECTION_NEGATIVE_Y); } /* Add the bottom border of the last band. */ if (boxes[i].y2 == bottom_most) { add_border(borders, boxes[i].x1, boxes[i].y2, boxes[i].x2, boxes[i].y2, MOTION_DIRECTION_POSITIVE_Y); } /* Always add the left border. */ add_border(borders, boxes[i].x1, boxes[i].y1, boxes[i].x1, boxes[i].y2, MOTION_DIRECTION_NEGATIVE_X); /* Always add the right border. */ add_border(borders, boxes[i].x2, boxes[i].y1, boxes[i].x2, boxes[i].y2, MOTION_DIRECTION_POSITIVE_X); prev_top = boxes[i].y1; } } static bool is_border_horizontal (struct border *border) { return border->line.a.y == border->line.b.y; } static bool is_border_blocking_directions(struct border *border, uint32_t directions) { /* Don't block parallel motions. */ if (is_border_horizontal(border)) { if ((directions & (MOTION_DIRECTION_POSITIVE_Y | MOTION_DIRECTION_NEGATIVE_Y)) == 0) return false; } else { if ((directions & (MOTION_DIRECTION_POSITIVE_X | MOTION_DIRECTION_NEGATIVE_X)) == 0) return false; } return (~border->blocking_dir & directions) != directions; } static struct border * get_closest_border(struct wl_array *borders, struct line *motion, uint32_t directions) { struct border *border; struct vec2d intersection; struct vec2d delta; double distance_2; struct border *closest_border = NULL; double closest_distance_2 = DBL_MAX; wl_array_for_each(border, borders) { if (!is_border_blocking_directions(border, directions)) continue; if (!lines_intersect(&border->line, motion, &intersection)) continue; delta = vec2d_subtract(intersection, motion->a); distance_2 = delta.x*delta.x + delta.y*delta.y; if (distance_2 < closest_distance_2) { closest_border = border; closest_distance_2 = distance_2; } } return closest_border; } static void clamp_to_border(struct border *border, struct line *motion, uint32_t *motion_dir) { /* * When clamping either rightward or downward motions, the motion needs * to be clamped so that the destination coordinate does not end up on * the border (see weston_pointer_clamp_event_to_region). Do this by * clamping such motions to the border minus the smallest possible * wl_fixed_t value. */ if (is_border_horizontal(border)) { if (*motion_dir & MOTION_DIRECTION_POSITIVE_Y) motion->b.y = border->line.a.y - wl_fixed_to_double(1); else motion->b.y = border->line.a.y; *motion_dir &= ~(MOTION_DIRECTION_POSITIVE_Y | MOTION_DIRECTION_NEGATIVE_Y); } else { if (*motion_dir & MOTION_DIRECTION_POSITIVE_X) motion->b.x = border->line.a.x - wl_fixed_to_double(1); else motion->b.x = border->line.a.x; *motion_dir &= ~(MOTION_DIRECTION_POSITIVE_X | MOTION_DIRECTION_NEGATIVE_X); } } static uint32_t get_motion_directions(struct line *motion) { uint32_t directions = 0; if (motion->a.x < motion->b.x) directions |= MOTION_DIRECTION_POSITIVE_X; else if (motion->a.x > motion->b.x) directions |= MOTION_DIRECTION_NEGATIVE_X; if (motion->a.y < motion->b.y) directions |= MOTION_DIRECTION_POSITIVE_Y; else if (motion->a.y > motion->b.y) directions |= MOTION_DIRECTION_NEGATIVE_Y; return directions; } static void weston_pointer_clamp_event_to_region(struct weston_pointer *pointer, struct weston_pointer_motion_event *event, pixman_region32_t *region, wl_fixed_t *clamped_x, wl_fixed_t *clamped_y) { wl_fixed_t x, y; wl_fixed_t sx, sy; wl_fixed_t old_sx = pointer->sx; wl_fixed_t old_sy = pointer->sy; struct wl_array borders; struct line motion; struct border *closest_border; float new_x_f, new_y_f; uint32_t directions; weston_pointer_motion_to_abs(pointer, event, &x, &y); weston_view_from_global_fixed(pointer->focus, x, y, &sx, &sy); wl_array_init(&borders); /* * Generate borders given the confine region we are to use. The borders * are defined to be the outer region of the allowed area. This means * top/left borders are "within" the allowed area, while bottom/right * borders are outside. This needs to be considered when clamping * confined motion vectors. */ region_to_outline(region, &borders); motion = (struct line) { .a = (struct vec2d) { .x = wl_fixed_to_double(old_sx), .y = wl_fixed_to_double(old_sy), }, .b = (struct vec2d) { .x = wl_fixed_to_double(sx), .y = wl_fixed_to_double(sy), }, }; directions = get_motion_directions(&motion); while (directions) { closest_border = get_closest_border(&borders, &motion, directions); if (closest_border) clamp_to_border(closest_border, &motion, &directions); else break; } weston_view_to_global_float(pointer->focus, (float) motion.b.x, (float) motion.b.y, &new_x_f, &new_y_f); *clamped_x = wl_fixed_from_double(new_x_f); *clamped_y = wl_fixed_from_double(new_y_f); wl_array_release(&borders); } static double point_to_border_distance_2(struct border *border, double x, double y) { double orig_x, orig_y; double dx, dy; if (is_border_horizontal(border)) { if (x < border->line.a.x) orig_x = border->line.a.x; else if (x > border->line.b.x) orig_x = border->line.b.x; else orig_x = x; orig_y = border->line.a.y; } else { if (y < border->line.a.y) orig_y = border->line.a.y; else if (y > border->line.b.y) orig_y = border->line.b.y; else orig_y = y; orig_x = border->line.a.x; } dx = fabs(orig_x - x); dy = fabs(orig_y - y); return dx*dx + dy*dy; } static void warp_to_behind_border(struct border *border, wl_fixed_t *sx, wl_fixed_t *sy) { switch (border->blocking_dir) { case MOTION_DIRECTION_POSITIVE_X: case MOTION_DIRECTION_NEGATIVE_X: if (border->blocking_dir == MOTION_DIRECTION_POSITIVE_X) *sx = wl_fixed_from_double(border->line.a.x) - 1; else *sx = wl_fixed_from_double(border->line.a.x) + 1; if (*sy < wl_fixed_from_double(border->line.a.y)) *sy = wl_fixed_from_double(border->line.a.y) + 1; else if (*sy > wl_fixed_from_double(border->line.b.y)) *sy = wl_fixed_from_double(border->line.b.y) - 1; break; case MOTION_DIRECTION_POSITIVE_Y: case MOTION_DIRECTION_NEGATIVE_Y: if (border->blocking_dir == MOTION_DIRECTION_POSITIVE_Y) *sy = wl_fixed_from_double(border->line.a.y) - 1; else *sy = wl_fixed_from_double(border->line.a.y) + 1; if (*sx < wl_fixed_from_double(border->line.a.x)) *sx = wl_fixed_from_double(border->line.a.x) + 1; else if (*sx > wl_fixed_from_double(border->line.b.x)) *sx = wl_fixed_from_double(border->line.b.x) - 1; break; } } static void maybe_warp_confined_pointer(struct weston_pointer_constraint *constraint) { wl_fixed_t x; wl_fixed_t y; wl_fixed_t sx; wl_fixed_t sy; weston_view_from_global_fixed(constraint->view, constraint->pointer->x, constraint->pointer->y, &sx, &sy); if (!is_within_constraint_region(constraint, sx, sy)) { double xf = wl_fixed_to_double(sx); double yf = wl_fixed_to_double(sy); pixman_region32_t confine_region; struct wl_array borders; struct border *border; double closest_distance_2 = DBL_MAX; struct border *closest_border = NULL; wl_array_init(&borders); pixman_region32_init(&confine_region); pixman_region32_intersect(&confine_region, &constraint->view->surface->input, &constraint->region); region_to_outline(&confine_region, &borders); pixman_region32_fini(&confine_region); wl_array_for_each(border, &borders) { double distance_2; distance_2 = point_to_border_distance_2(border, xf, yf); if (distance_2 < closest_distance_2) { closest_border = border; closest_distance_2 = distance_2; } } assert(closest_border); warp_to_behind_border(closest_border, &sx, &sy); wl_array_release(&borders); weston_view_to_global_fixed(constraint->view, sx, sy, &x, &y); weston_pointer_move_to(constraint->pointer, x, y); } } static void confined_pointer_grab_pointer_motion(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_motion_event *event) { struct weston_pointer_constraint *constraint = container_of(grab, struct weston_pointer_constraint, grab); struct weston_pointer *pointer = grab->pointer; struct weston_surface *surface; wl_fixed_t x, y; wl_fixed_t old_sx = pointer->sx; wl_fixed_t old_sy = pointer->sy; pixman_region32_t confine_region; assert(pointer->focus); assert(pointer->focus->surface == constraint->surface); surface = pointer->focus->surface; pixman_region32_init(&confine_region); pixman_region32_intersect(&confine_region, &surface->input, &constraint->region); weston_pointer_clamp_event_to_region(pointer, event, &confine_region, &x, &y); weston_pointer_move_to(pointer, x, y); pixman_region32_fini(&confine_region); weston_view_from_global_fixed(pointer->focus, x, y, &pointer->sx, &pointer->sy); if (old_sx != pointer->sx || old_sy != pointer->sy) { pointer_send_motion(pointer, time, pointer->sx, pointer->sy); } pointer_send_relative_motion(pointer, time, event); } static void confined_pointer_grab_pointer_button(struct weston_pointer_grab *grab, const struct timespec *time, uint32_t button, uint32_t state_w) { weston_pointer_send_button(grab->pointer, time, button, state_w); } static void confined_pointer_grab_pointer_axis(struct weston_pointer_grab *grab, const struct timespec *time, struct weston_pointer_axis_event *event) { weston_pointer_send_axis(grab->pointer, time, event); } static void confined_pointer_grab_pointer_axis_source(struct weston_pointer_grab *grab, uint32_t source) { weston_pointer_send_axis_source(grab->pointer, source); } static void confined_pointer_grab_pointer_frame(struct weston_pointer_grab *grab) { weston_pointer_send_frame(grab->pointer); } static void confined_pointer_grab_pointer_cancel(struct weston_pointer_grab *grab) { struct weston_pointer_constraint *constraint = container_of(grab, struct weston_pointer_constraint, grab); disable_pointer_constraint(constraint); } static const struct weston_pointer_grab_interface confined_pointer_grab_interface = { confined_pointer_grab_pointer_focus, confined_pointer_grab_pointer_motion, confined_pointer_grab_pointer_button, confined_pointer_grab_pointer_axis, confined_pointer_grab_pointer_axis_source, confined_pointer_grab_pointer_frame, confined_pointer_grab_pointer_cancel, }; static void confined_pointer_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static void confined_pointer_set_region(struct wl_client *client, struct wl_resource *resource, struct wl_resource *region_resource) { struct weston_pointer_constraint *constraint = wl_resource_get_user_data(resource); struct weston_region *region = region_resource ? wl_resource_get_user_data(region_resource) : NULL; if (!constraint) return; if (region) { pixman_region32_copy(&constraint->region_pending, ®ion->region); } else { pixman_region32_fini(&constraint->region_pending); region_init_infinite(&constraint->region_pending); } constraint->region_is_pending = true; } static const struct zwp_confined_pointer_v1_interface confined_pointer_interface = { confined_pointer_destroy, confined_pointer_set_region, }; static void pointer_constraints_confine_pointer(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *surface_resource, struct wl_resource *pointer_resource, struct wl_resource *region_resource, uint32_t lifetime) { struct weston_surface *surface = wl_resource_get_user_data(surface_resource); struct weston_pointer *pointer = wl_resource_get_user_data(pointer_resource); struct weston_region *region = region_resource ? wl_resource_get_user_data(region_resource) : NULL; init_pointer_constraint(resource, id, surface, pointer, region, lifetime, &zwp_confined_pointer_v1_interface, &confined_pointer_interface, &confined_pointer_grab_interface); } static const struct zwp_pointer_constraints_v1_interface pointer_constraints_interface = { pointer_constraints_destroy, pointer_constraints_lock_pointer, pointer_constraints_confine_pointer, }; static void bind_pointer_constraints(struct wl_client *client, void *data, uint32_t version, uint32_t id) { struct wl_resource *resource; resource = wl_resource_create(client, &zwp_pointer_constraints_v1_interface, 1, id); wl_resource_set_implementation(resource, &pointer_constraints_interface, NULL, NULL); } static void input_timestamps_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static const struct zwp_input_timestamps_v1_interface input_timestamps_interface = { input_timestamps_destroy, }; static void input_timestamps_manager_destroy(struct wl_client *client, struct wl_resource *resource) { wl_resource_destroy(resource); } static void input_timestamps_manager_get_keyboard_timestamps(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *keyboard_resource) { struct weston_keyboard *keyboard = wl_resource_get_user_data(keyboard_resource); struct wl_resource *input_ts; input_ts = wl_resource_create(client, &zwp_input_timestamps_v1_interface, 1, id); if (!input_ts) { wl_client_post_no_memory(client); return; } if (keyboard) { wl_list_insert(&keyboard->timestamps_list, wl_resource_get_link(input_ts)); } else { wl_list_init(wl_resource_get_link(input_ts)); } wl_resource_set_implementation(input_ts, &input_timestamps_interface, keyboard_resource, unbind_resource); } static void input_timestamps_manager_get_pointer_timestamps(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *pointer_resource) { struct weston_pointer *pointer = wl_resource_get_user_data(pointer_resource); struct wl_resource *input_ts; input_ts = wl_resource_create(client, &zwp_input_timestamps_v1_interface, 1, id); if (!input_ts) { wl_client_post_no_memory(client); return; } if (pointer) { wl_list_insert(&pointer->timestamps_list, wl_resource_get_link(input_ts)); } else { wl_list_init(wl_resource_get_link(input_ts)); } wl_resource_set_implementation(input_ts, &input_timestamps_interface, pointer_resource, unbind_resource); } static void input_timestamps_manager_get_touch_timestamps(struct wl_client *client, struct wl_resource *resource, uint32_t id, struct wl_resource *touch_resource) { struct weston_touch *touch = wl_resource_get_user_data(touch_resource); struct wl_resource *input_ts; input_ts = wl_resource_create(client, &zwp_input_timestamps_v1_interface, 1, id); if (!input_ts) { wl_client_post_no_memory(client); return; } if (touch) { wl_list_insert(&touch->timestamps_list, wl_resource_get_link(input_ts)); } else { wl_list_init(wl_resource_get_link(input_ts)); } wl_resource_set_implementation(input_ts, &input_timestamps_interface, touch_resource, unbind_resource); } static const struct zwp_input_timestamps_manager_v1_interface input_timestamps_manager_interface = { input_timestamps_manager_destroy, input_timestamps_manager_get_keyboard_timestamps, input_timestamps_manager_get_pointer_timestamps, input_timestamps_manager_get_touch_timestamps, }; static void bind_input_timestamps_manager(struct wl_client *client, void *data, uint32_t version, uint32_t id) { struct wl_resource *resource = wl_resource_create(client, &zwp_input_timestamps_manager_v1_interface, 1, id); if (resource == NULL) { wl_client_post_no_memory(client); return; } wl_resource_set_implementation(resource, &input_timestamps_manager_interface, NULL, NULL); } int weston_input_init(struct weston_compositor *compositor) { if (!wl_global_create(compositor->wl_display, &zwp_relative_pointer_manager_v1_interface, 1, compositor, bind_relative_pointer_manager)) return -1; if (!wl_global_create(compositor->wl_display, &zwp_pointer_constraints_v1_interface, 1, NULL, bind_pointer_constraints)) return -1; if (!wl_global_create(compositor->wl_display, &zwp_input_timestamps_manager_v1_interface, 1, NULL, bind_input_timestamps_manager)) return -1; return 0; }