diff options
Diffstat (limited to 'Source/external/SDL2/src/video/wayland/SDL_waylandevents.c')
| -rw-r--r-- | Source/external/SDL2/src/video/wayland/SDL_waylandevents.c | 1136 |
1 files changed, 1136 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/video/wayland/SDL_waylandevents.c b/Source/external/SDL2/src/video/wayland/SDL_waylandevents.c new file mode 100644 index 0000000..0c953a5 --- /dev/null +++ b/Source/external/SDL2/src/video/wayland/SDL_waylandevents.c @@ -0,0 +1,1136 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +#include "../../SDL_internal.h" + +#if SDL_VIDEO_DRIVER_WAYLAND + +#include "SDL_stdinc.h" +#include "SDL_assert.h" +#include "SDL_log.h" + +#include "../../core/unix/SDL_poll.h" +#include "../../events/SDL_sysevents.h" +#include "../../events/SDL_events_c.h" +#include "../../events/scancodes_xfree86.h" + +#include "SDL_waylandvideo.h" +#include "SDL_waylandevents_c.h" +#include "SDL_waylandwindow.h" + +#include "SDL_waylanddyn.h" + +#include "pointer-constraints-unstable-v1-client-protocol.h" +#include "relative-pointer-unstable-v1-client-protocol.h" +#include "xdg-shell-client-protocol.h" +#include "xdg-shell-unstable-v6-client-protocol.h" + +#include <linux/input.h> +#include <sys/select.h> +#include <sys/mman.h> +#include <poll.h> +#include <unistd.h> +#include <xkbcommon/xkbcommon.h> + +struct SDL_WaylandInput { + SDL_VideoData *display; + struct wl_seat *seat; + struct wl_pointer *pointer; + struct wl_touch *touch; + struct wl_keyboard *keyboard; + SDL_WaylandDataDevice *data_device; + struct zwp_relative_pointer_v1 *relative_pointer; + SDL_WindowData *pointer_focus; + SDL_WindowData *keyboard_focus; + + /* Last motion location */ + wl_fixed_t sx_w; + wl_fixed_t sy_w; + + double dx_frac; + double dy_frac; + + struct { + struct xkb_keymap *keymap; + struct xkb_state *state; + } xkb; +}; + +struct SDL_WaylandTouchPoint { + SDL_TouchID id; + float x; + float y; + struct wl_surface* surface; + + struct SDL_WaylandTouchPoint* prev; + struct SDL_WaylandTouchPoint* next; +}; + +struct SDL_WaylandTouchPointList { + struct SDL_WaylandTouchPoint* head; + struct SDL_WaylandTouchPoint* tail; +}; + +static struct SDL_WaylandTouchPointList touch_points = {NULL, NULL}; + +static void +touch_add(SDL_TouchID id, float x, float y, struct wl_surface *surface) +{ + struct SDL_WaylandTouchPoint* tp = SDL_malloc(sizeof(struct SDL_WaylandTouchPoint)); + + tp->id = id; + tp->x = x; + tp->y = y; + tp->surface = surface; + + if (touch_points.tail) { + touch_points.tail->next = tp; + tp->prev = touch_points.tail; + } else { + touch_points.head = tp; + tp->prev = NULL; + } + + touch_points.tail = tp; + tp->next = NULL; +} + +static void +touch_update(SDL_TouchID id, float x, float y) +{ + struct SDL_WaylandTouchPoint* tp = touch_points.head; + + while (tp) { + if (tp->id == id) { + tp->x = x; + tp->y = y; + } + + tp = tp->next; + } +} + +static void +touch_del(SDL_TouchID id, float* x, float* y) +{ + struct SDL_WaylandTouchPoint* tp = touch_points.head; + + while (tp) { + if (tp->id == id) { + *x = tp->x; + *y = tp->y; + + if (tp->prev) { + tp->prev->next = tp->next; + } else { + touch_points.head = tp->next; + } + + if (tp->next) { + tp->next->prev = tp->prev; + } else { + touch_points.tail = tp->prev; + } + + SDL_free(tp); + } + + tp = tp->next; + } +} + +static struct wl_surface* +touch_surface(SDL_TouchID id) +{ + struct SDL_WaylandTouchPoint* tp = touch_points.head; + + while (tp) { + if (tp->id == id) { + return tp->surface; + } + + tp = tp->next; + } + + return NULL; +} + +void +Wayland_PumpEvents(_THIS) +{ + SDL_VideoData *d = _this->driverdata; + + WAYLAND_wl_display_flush(d->display); + + if (SDL_IOReady(WAYLAND_wl_display_get_fd(d->display), SDL_FALSE, 0)) { + WAYLAND_wl_display_dispatch(d->display); + } + else + { + WAYLAND_wl_display_dispatch_pending(d->display); + } +} + +static void +pointer_handle_enter(void *data, struct wl_pointer *pointer, + uint32_t serial, struct wl_surface *surface, + wl_fixed_t sx_w, wl_fixed_t sy_w) +{ + struct SDL_WaylandInput *input = data; + SDL_WindowData *window; + + if (!surface) { + /* enter event for a window we've just destroyed */ + return; + } + + /* This handler will be called twice in Wayland 1.4 + * Once for the window surface which has valid user data + * and again for the mouse cursor surface which does not have valid user data + * We ignore the later + */ + + window = (SDL_WindowData *)wl_surface_get_user_data(surface); + + if (window) { + input->pointer_focus = window; + SDL_SetMouseFocus(window->sdlwindow); + } +} + +static void +pointer_handle_leave(void *data, struct wl_pointer *pointer, + uint32_t serial, struct wl_surface *surface) +{ + struct SDL_WaylandInput *input = data; + + if (input->pointer_focus) { + SDL_SetMouseFocus(NULL); + input->pointer_focus = NULL; + } +} + +static void +pointer_handle_motion(void *data, struct wl_pointer *pointer, + uint32_t time, wl_fixed_t sx_w, wl_fixed_t sy_w) +{ + struct SDL_WaylandInput *input = data; + SDL_WindowData *window = input->pointer_focus; + input->sx_w = sx_w; + input->sy_w = sy_w; + if (input->pointer_focus) { + const int sx = wl_fixed_to_int(sx_w); + const int sy = wl_fixed_to_int(sy_w); + SDL_SendMouseMotion(window->sdlwindow, 0, 0, sx, sy); + } +} + +static SDL_bool +ProcessHitTest(struct SDL_WaylandInput *input, uint32_t serial) +{ + SDL_WindowData *window_data = input->pointer_focus; + SDL_Window *window = window_data->sdlwindow; + + if (window->hit_test) { + const SDL_Point point = { wl_fixed_to_int(input->sx_w), wl_fixed_to_int(input->sy_w) }; + const SDL_HitTestResult rc = window->hit_test(window, &point, window->hit_test_data); + + static const uint32_t directions_wl[] = { + WL_SHELL_SURFACE_RESIZE_TOP_LEFT, WL_SHELL_SURFACE_RESIZE_TOP, + WL_SHELL_SURFACE_RESIZE_TOP_RIGHT, WL_SHELL_SURFACE_RESIZE_RIGHT, + WL_SHELL_SURFACE_RESIZE_BOTTOM_RIGHT, WL_SHELL_SURFACE_RESIZE_BOTTOM, + WL_SHELL_SURFACE_RESIZE_BOTTOM_LEFT, WL_SHELL_SURFACE_RESIZE_LEFT + }; + + /* the names are different (ZXDG_TOPLEVEL_V6_RESIZE_EDGE_* vs + WL_SHELL_SURFACE_RESIZE_*), but the values are the same. */ + const uint32_t *directions_zxdg = directions_wl; + + switch (rc) { + case SDL_HITTEST_DRAGGABLE: + if (input->display->shell.xdg) { + xdg_toplevel_move(window_data->shell_surface.xdg.roleobj.toplevel, input->seat, serial); + } else if (input->display->shell.zxdg) { + zxdg_toplevel_v6_move(window_data->shell_surface.zxdg.roleobj.toplevel, input->seat, serial); + } else { + wl_shell_surface_move(window_data->shell_surface.wl, input->seat, serial); + } + return SDL_TRUE; + + case SDL_HITTEST_RESIZE_TOPLEFT: + case SDL_HITTEST_RESIZE_TOP: + case SDL_HITTEST_RESIZE_TOPRIGHT: + case SDL_HITTEST_RESIZE_RIGHT: + case SDL_HITTEST_RESIZE_BOTTOMRIGHT: + case SDL_HITTEST_RESIZE_BOTTOM: + case SDL_HITTEST_RESIZE_BOTTOMLEFT: + case SDL_HITTEST_RESIZE_LEFT: + if (input->display->shell.xdg) { + xdg_toplevel_resize(window_data->shell_surface.xdg.roleobj.toplevel, input->seat, serial, directions_zxdg[rc - SDL_HITTEST_RESIZE_TOPLEFT]); + } else if (input->display->shell.zxdg) { + zxdg_toplevel_v6_resize(window_data->shell_surface.zxdg.roleobj.toplevel, input->seat, serial, directions_zxdg[rc - SDL_HITTEST_RESIZE_TOPLEFT]); + } else { + wl_shell_surface_resize(window_data->shell_surface.wl, input->seat, serial, directions_wl[rc - SDL_HITTEST_RESIZE_TOPLEFT]); + } + return SDL_TRUE; + + default: return SDL_FALSE; + } + } + + return SDL_FALSE; +} + +static void +pointer_handle_button_common(struct SDL_WaylandInput *input, uint32_t serial, + uint32_t time, uint32_t button, uint32_t state_w) +{ + SDL_WindowData *window = input->pointer_focus; + enum wl_pointer_button_state state = state_w; + uint32_t sdl_button; + + if (input->pointer_focus) { + switch (button) { + case BTN_LEFT: + sdl_button = SDL_BUTTON_LEFT; + if (ProcessHitTest(input, serial)) { + return; /* don't pass this event on to app. */ + } + break; + case BTN_MIDDLE: + sdl_button = SDL_BUTTON_MIDDLE; + break; + case BTN_RIGHT: + sdl_button = SDL_BUTTON_RIGHT; + break; + case BTN_SIDE: + sdl_button = SDL_BUTTON_X1; + break; + case BTN_EXTRA: + sdl_button = SDL_BUTTON_X2; + break; + default: + return; + } + + Wayland_data_device_set_serial(input->data_device, serial); + + SDL_SendMouseButton(window->sdlwindow, 0, + state ? SDL_PRESSED : SDL_RELEASED, sdl_button); + } +} + +static void +pointer_handle_button(void *data, struct wl_pointer *pointer, uint32_t serial, + uint32_t time, uint32_t button, uint32_t state_w) +{ + struct SDL_WaylandInput *input = data; + + pointer_handle_button_common(input, serial, time, button, state_w); +} + +static void +pointer_handle_axis_common(struct SDL_WaylandInput *input, + uint32_t time, uint32_t axis, wl_fixed_t value) +{ + SDL_WindowData *window = input->pointer_focus; + enum wl_pointer_axis a = axis; + float x, y; + + if (input->pointer_focus) { + switch (a) { + case WL_POINTER_AXIS_VERTICAL_SCROLL: + x = 0; + y = 0 - (float)wl_fixed_to_double(value); + break; + case WL_POINTER_AXIS_HORIZONTAL_SCROLL: + x = 0 - (float)wl_fixed_to_double(value); + y = 0; + break; + default: + return; + } + + SDL_SendMouseWheel(window->sdlwindow, 0, x, y, SDL_MOUSEWHEEL_NORMAL); + } +} + +static void +pointer_handle_axis(void *data, struct wl_pointer *pointer, + uint32_t time, uint32_t axis, wl_fixed_t value) +{ + struct SDL_WaylandInput *input = data; + + pointer_handle_axis_common(input, time, axis, value); +} + +static const struct wl_pointer_listener pointer_listener = { + pointer_handle_enter, + pointer_handle_leave, + pointer_handle_motion, + pointer_handle_button, + pointer_handle_axis, + NULL, /* frame */ + NULL, /* axis_source */ + NULL, /* axis_stop */ + NULL, /* axis_discrete */ +}; + +static void +touch_handler_down(void *data, struct wl_touch *touch, unsigned int serial, + unsigned int timestamp, struct wl_surface *surface, + int id, wl_fixed_t fx, wl_fixed_t fy) +{ + float x, y; + SDL_WindowData* window; + + window = (SDL_WindowData *)wl_surface_get_user_data(surface); + + x = wl_fixed_to_double(fx) / window->sdlwindow->w; + y = wl_fixed_to_double(fy) / window->sdlwindow->h; + + touch_add(id, x, y, surface); + SDL_SendTouch(1, (SDL_FingerID)id, SDL_TRUE, x, y, 1.0f); +} + +static void +touch_handler_up(void *data, struct wl_touch *touch, unsigned int serial, + unsigned int timestamp, int id) +{ + float x = 0, y = 0; + + touch_del(id, &x, &y); + SDL_SendTouch(1, (SDL_FingerID)id, SDL_FALSE, x, y, 0.0f); +} + +static void +touch_handler_motion(void *data, struct wl_touch *touch, unsigned int timestamp, + int id, wl_fixed_t fx, wl_fixed_t fy) +{ + float x, y; + SDL_WindowData* window; + + window = (SDL_WindowData *)wl_surface_get_user_data(touch_surface(id)); + + x = wl_fixed_to_double(fx) / window->sdlwindow->w; + y = wl_fixed_to_double(fy) / window->sdlwindow->h; + + touch_update(id, x, y); + SDL_SendTouchMotion(1, (SDL_FingerID)id, x, y, 1.0f); +} + +static void +touch_handler_frame(void *data, struct wl_touch *touch) +{ + +} + +static void +touch_handler_cancel(void *data, struct wl_touch *touch) +{ + +} + +static const struct wl_touch_listener touch_listener = { + touch_handler_down, + touch_handler_up, + touch_handler_motion, + touch_handler_frame, + touch_handler_cancel, + NULL, /* shape */ + NULL, /* orientation */ +}; + +static void +keyboard_handle_keymap(void *data, struct wl_keyboard *keyboard, + uint32_t format, int fd, uint32_t size) +{ + struct SDL_WaylandInput *input = data; + char *map_str; + + if (!data) { + close(fd); + return; + } + + if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) { + close(fd); + return; + } + + map_str = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); + if (map_str == MAP_FAILED) { + close(fd); + return; + } + + input->xkb.keymap = WAYLAND_xkb_keymap_new_from_string(input->display->xkb_context, + map_str, + XKB_KEYMAP_FORMAT_TEXT_V1, + 0); + munmap(map_str, size); + close(fd); + + if (!input->xkb.keymap) { + fprintf(stderr, "failed to compile keymap\n"); + return; + } + + input->xkb.state = WAYLAND_xkb_state_new(input->xkb.keymap); + if (!input->xkb.state) { + fprintf(stderr, "failed to create XKB state\n"); + WAYLAND_xkb_keymap_unref(input->xkb.keymap); + input->xkb.keymap = NULL; + return; + } +} + +static void +keyboard_handle_enter(void *data, struct wl_keyboard *keyboard, + uint32_t serial, struct wl_surface *surface, + struct wl_array *keys) +{ + struct SDL_WaylandInput *input = data; + SDL_WindowData *window; + + if (!surface) { + /* enter event for a window we've just destroyed */ + return; + } + + window = wl_surface_get_user_data(surface); + + if (window) { + input->keyboard_focus = window; + window->keyboard_device = input; + SDL_SetKeyboardFocus(window->sdlwindow); + } +} + +static void +keyboard_handle_leave(void *data, struct wl_keyboard *keyboard, + uint32_t serial, struct wl_surface *surface) +{ + SDL_SetKeyboardFocus(NULL); +} + +static void +keyboard_handle_key(void *data, struct wl_keyboard *keyboard, + uint32_t serial, uint32_t time, uint32_t key, + uint32_t state_w) +{ + struct SDL_WaylandInput *input = data; + SDL_WindowData *window = input->keyboard_focus; + enum wl_keyboard_key_state state = state_w; + const xkb_keysym_t *syms; + uint32_t scancode; + char text[8]; + int size; + + if (key < SDL_arraysize(xfree86_scancode_table2)) { + scancode = xfree86_scancode_table2[key]; + + // TODO when do we get WL_KEYBOARD_KEY_STATE_REPEAT? + if (scancode != SDL_SCANCODE_UNKNOWN) + SDL_SendKeyboardKey(state == WL_KEYBOARD_KEY_STATE_PRESSED ? + SDL_PRESSED : SDL_RELEASED, scancode); + } + + if (!window || window->keyboard_device != input || !input->xkb.state) + return; + + // TODO can this happen? + if (WAYLAND_xkb_state_key_get_syms(input->xkb.state, key + 8, &syms) != 1) + return; + + if (state) { + size = WAYLAND_xkb_keysym_to_utf8(syms[0], text, sizeof text); + + if (size > 0) { + text[size] = 0; + + Wayland_data_device_set_serial(input->data_device, serial); + + SDL_SendKeyboardText(text); + } + } +} + +static void +keyboard_handle_modifiers(void *data, struct wl_keyboard *keyboard, + uint32_t serial, uint32_t mods_depressed, + uint32_t mods_latched, uint32_t mods_locked, + uint32_t group) +{ + struct SDL_WaylandInput *input = data; + + WAYLAND_xkb_state_update_mask(input->xkb.state, mods_depressed, mods_latched, + mods_locked, 0, 0, group); +} + +static const struct wl_keyboard_listener keyboard_listener = { + keyboard_handle_keymap, + keyboard_handle_enter, + keyboard_handle_leave, + keyboard_handle_key, + keyboard_handle_modifiers, + NULL, /* repeat_info */ +}; + +static void +seat_handle_capabilities(void *data, struct wl_seat *seat, + enum wl_seat_capability caps) +{ + struct SDL_WaylandInput *input = data; + + if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) { + input->pointer = wl_seat_get_pointer(seat); + input->display->pointer = input->pointer; + wl_pointer_set_user_data(input->pointer, input); + wl_pointer_add_listener(input->pointer, &pointer_listener, + input); + } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) { + wl_pointer_destroy(input->pointer); + input->pointer = NULL; + input->display->pointer = NULL; + } + + if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !input->touch) { + SDL_AddTouch(1, "wayland_touch"); + input->touch = wl_seat_get_touch(seat); + wl_touch_set_user_data(input->touch, input); + wl_touch_add_listener(input->touch, &touch_listener, + input); + } else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && input->touch) { + SDL_DelTouch(1); + wl_touch_destroy(input->touch); + input->touch = NULL; + } + + if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) { + input->keyboard = wl_seat_get_keyboard(seat); + wl_keyboard_set_user_data(input->keyboard, input); + wl_keyboard_add_listener(input->keyboard, &keyboard_listener, + input); + } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) { + wl_keyboard_destroy(input->keyboard); + input->keyboard = NULL; + } +} + +static const struct wl_seat_listener seat_listener = { + seat_handle_capabilities, + NULL, /* name */ +}; + +static void +data_source_handle_target(void *data, struct wl_data_source *wl_data_source, + const char *mime_type) +{ +} + +static void +data_source_handle_send(void *data, struct wl_data_source *wl_data_source, + const char *mime_type, int32_t fd) +{ + Wayland_data_source_send((SDL_WaylandDataSource *)data, mime_type, fd); +} + +static void +data_source_handle_cancelled(void *data, struct wl_data_source *wl_data_source) +{ + Wayland_data_source_destroy(data); +} + +static void +data_source_handle_dnd_drop_performed(void *data, struct wl_data_source *wl_data_source) +{ +} + +static void +data_source_handle_dnd_finished(void *data, struct wl_data_source *wl_data_source) +{ +} + +static void +data_source_handle_action(void *data, struct wl_data_source *wl_data_source, + uint32_t dnd_action) +{ +} + +static const struct wl_data_source_listener data_source_listener = { + data_source_handle_target, + data_source_handle_send, + data_source_handle_cancelled, + data_source_handle_dnd_drop_performed, // Version 3 + data_source_handle_dnd_finished, // Version 3 + data_source_handle_action, // Version 3 +}; + +SDL_WaylandDataSource* +Wayland_data_source_create(_THIS) +{ + SDL_WaylandDataSource *data_source = NULL; + SDL_VideoData *driver_data = NULL; + struct wl_data_source *id = NULL; + + if (_this == NULL || _this->driverdata == NULL) { + SDL_SetError("Video driver uninitialized"); + } else { + driver_data = _this->driverdata; + + if (driver_data->data_device_manager != NULL) { + id = wl_data_device_manager_create_data_source( + driver_data->data_device_manager); + } + + if (id == NULL) { + SDL_SetError("Wayland unable to create data source"); + } else { + data_source = SDL_calloc(1, sizeof *data_source); + if (data_source == NULL) { + SDL_OutOfMemory(); + wl_data_source_destroy(id); + } else { + WAYLAND_wl_list_init(&(data_source->mimes)); + data_source->source = id; + wl_data_source_set_user_data(id, data_source); + wl_data_source_add_listener(id, &data_source_listener, + data_source); + } + } + } + return data_source; +} + +static void +data_offer_handle_offer(void *data, struct wl_data_offer *wl_data_offer, + const char *mime_type) +{ + SDL_WaylandDataOffer *offer = data; + Wayland_data_offer_add_mime(offer, mime_type); +} + +static void +data_offer_handle_source_actions(void *data, struct wl_data_offer *wl_data_offer, + uint32_t source_actions) +{ +} + +static void +data_offer_handle_actions(void *data, struct wl_data_offer *wl_data_offer, + uint32_t dnd_action) +{ +} + +static const struct wl_data_offer_listener data_offer_listener = { + data_offer_handle_offer, + data_offer_handle_source_actions, // Version 3 + data_offer_handle_actions, // Version 3 +}; + +static void +data_device_handle_data_offer(void *data, struct wl_data_device *wl_data_device, + struct wl_data_offer *id) +{ + SDL_WaylandDataOffer *data_offer = NULL; + + data_offer = SDL_calloc(1, sizeof *data_offer); + if (data_offer == NULL) { + SDL_OutOfMemory(); + } else { + data_offer->offer = id; + data_offer->data_device = data; + WAYLAND_wl_list_init(&(data_offer->mimes)); + wl_data_offer_set_user_data(id, data_offer); + wl_data_offer_add_listener(id, &data_offer_listener, data_offer); + } +} + +static void +data_device_handle_enter(void *data, struct wl_data_device *wl_data_device, + uint32_t serial, struct wl_surface *surface, + wl_fixed_t x, wl_fixed_t y, struct wl_data_offer *id) +{ + SDL_WaylandDataDevice *data_device = data; + SDL_bool has_mime = SDL_FALSE; + uint32_t dnd_action = WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE; + + data_device->drag_serial = serial; + + if (id != NULL) { + data_device->drag_offer = wl_data_offer_get_user_data(id); + + /* TODO: SDL Support more mime types */ + has_mime = Wayland_data_offer_has_mime( + data_device->drag_offer, FILE_MIME); + + /* If drag_mime is NULL this will decline the offer */ + wl_data_offer_accept(id, serial, + (has_mime == SDL_TRUE) ? FILE_MIME : NULL); + + /* SDL only supports "copy" style drag and drop */ + if (has_mime == SDL_TRUE) { + dnd_action = WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY; + } + wl_data_offer_set_actions(data_device->drag_offer->offer, + dnd_action, dnd_action); + } +} + +static void +data_device_handle_leave(void *data, struct wl_data_device *wl_data_device) +{ + SDL_WaylandDataDevice *data_device = data; + SDL_WaylandDataOffer *offer = NULL; + + if (data_device->selection_offer != NULL) { + data_device->selection_offer = NULL; + Wayland_data_offer_destroy(offer); + } +} + +static void +data_device_handle_motion(void *data, struct wl_data_device *wl_data_device, + uint32_t time, wl_fixed_t x, wl_fixed_t y) +{ +} + +static void +data_device_handle_drop(void *data, struct wl_data_device *wl_data_device) +{ + SDL_WaylandDataDevice *data_device = data; + void *buffer = NULL; + size_t length = 0; + + const char *current_uri = NULL; + const char *last_char = NULL; + char *current_char = NULL; + + if (data_device->drag_offer != NULL) { + /* TODO: SDL Support more mime types */ + buffer = Wayland_data_offer_receive(data_device->drag_offer, + &length, FILE_MIME, SDL_FALSE); + + /* uri-list */ + current_uri = (const char *)buffer; + last_char = (const char *)buffer + length; + for (current_char = buffer; current_char < last_char; ++current_char) { + if (*current_char == '\n' || *current_char == 0) { + if (*current_uri != 0 && *current_uri != '#') { + *current_char = 0; + SDL_SendDropFile(NULL, current_uri); + } + current_uri = (const char *)current_char + 1; + } + } + + SDL_free(buffer); + } +} + +static void +data_device_handle_selection(void *data, struct wl_data_device *wl_data_device, + struct wl_data_offer *id) +{ + SDL_WaylandDataDevice *data_device = data; + SDL_WaylandDataOffer *offer = NULL; + + if (id != NULL) { + offer = wl_data_offer_get_user_data(id); + } + + if (data_device->selection_offer != offer) { + Wayland_data_offer_destroy(data_device->selection_offer); + data_device->selection_offer = offer; + } + + SDL_SendClipboardUpdate(); +} + +static const struct wl_data_device_listener data_device_listener = { + data_device_handle_data_offer, + data_device_handle_enter, + data_device_handle_leave, + data_device_handle_motion, + data_device_handle_drop, + data_device_handle_selection +}; + +void +Wayland_display_add_input(SDL_VideoData *d, uint32_t id) +{ + struct SDL_WaylandInput *input; + SDL_WaylandDataDevice *data_device = NULL; + + input = SDL_calloc(1, sizeof *input); + if (input == NULL) + return; + + input->display = d; + input->seat = wl_registry_bind(d->registry, id, &wl_seat_interface, 1); + input->sx_w = wl_fixed_from_int(0); + input->sy_w = wl_fixed_from_int(0); + d->input = input; + + if (d->data_device_manager != NULL) { + data_device = SDL_calloc(1, sizeof *data_device); + if (data_device == NULL) { + return; + } + + data_device->data_device = wl_data_device_manager_get_data_device( + d->data_device_manager, input->seat + ); + data_device->video_data = d; + + if (data_device->data_device == NULL) { + SDL_free(data_device); + } else { + wl_data_device_set_user_data(data_device->data_device, data_device); + wl_data_device_add_listener(data_device->data_device, + &data_device_listener, data_device); + input->data_device = data_device; + } + } + + wl_seat_add_listener(input->seat, &seat_listener, input); + wl_seat_set_user_data(input->seat, input); + + WAYLAND_wl_display_flush(d->display); +} + +void Wayland_display_destroy_input(SDL_VideoData *d) +{ + struct SDL_WaylandInput *input = d->input; + + if (!input) + return; + + if (input->data_device != NULL) { + Wayland_data_device_clear_selection(input->data_device); + if (input->data_device->selection_offer != NULL) { + Wayland_data_offer_destroy(input->data_device->selection_offer); + } + if (input->data_device->drag_offer != NULL) { + Wayland_data_offer_destroy(input->data_device->drag_offer); + } + if (input->data_device->data_device != NULL) { + wl_data_device_release(input->data_device->data_device); + } + SDL_free(input->data_device); + } + + if (input->keyboard) + wl_keyboard_destroy(input->keyboard); + + if (input->pointer) + wl_pointer_destroy(input->pointer); + + if (input->touch) { + SDL_DelTouch(1); + wl_touch_destroy(input->touch); + } + + if (input->seat) + wl_seat_destroy(input->seat); + + if (input->xkb.state) + WAYLAND_xkb_state_unref(input->xkb.state); + + if (input->xkb.keymap) + WAYLAND_xkb_keymap_unref(input->xkb.keymap); + + SDL_free(input); + d->input = NULL; +} + +SDL_WaylandDataDevice* Wayland_get_data_device(struct SDL_WaylandInput *input) +{ + if (input == NULL) { + return NULL; + } + + return input->data_device; +} + +/* !!! FIXME: just merge these into display_handle_global(). */ +void Wayland_display_add_relative_pointer_manager(SDL_VideoData *d, uint32_t id) +{ + d->relative_pointer_manager = + wl_registry_bind(d->registry, id, + &zwp_relative_pointer_manager_v1_interface, 1); +} + +void Wayland_display_destroy_relative_pointer_manager(SDL_VideoData *d) +{ + if (d->relative_pointer_manager) + zwp_relative_pointer_manager_v1_destroy(d->relative_pointer_manager); +} + +void Wayland_display_add_pointer_constraints(SDL_VideoData *d, uint32_t id) +{ + d->pointer_constraints = + wl_registry_bind(d->registry, id, + &zwp_pointer_constraints_v1_interface, 1); +} + +void Wayland_display_destroy_pointer_constraints(SDL_VideoData *d) +{ + if (d->pointer_constraints) + zwp_pointer_constraints_v1_destroy(d->pointer_constraints); +} + +static void +relative_pointer_handle_relative_motion(void *data, + struct zwp_relative_pointer_v1 *pointer, + uint32_t time_hi, + uint32_t time_lo, + wl_fixed_t dx_w, + wl_fixed_t dy_w, + wl_fixed_t dx_unaccel_w, + wl_fixed_t dy_unaccel_w) +{ + struct SDL_WaylandInput *input = data; + SDL_VideoData *d = input->display; + SDL_WindowData *window = input->pointer_focus; + double dx_unaccel; + double dy_unaccel; + double dx; + double dy; + + dx_unaccel = wl_fixed_to_double(dx_unaccel_w); + dy_unaccel = wl_fixed_to_double(dy_unaccel_w); + + /* Add left over fraction from last event. */ + dx_unaccel += input->dx_frac; + dy_unaccel += input->dy_frac; + + input->dx_frac = modf(dx_unaccel, &dx); + input->dy_frac = modf(dy_unaccel, &dy); + + if (input->pointer_focus && d->relative_mouse_mode) { + SDL_SendMouseMotion(window->sdlwindow, 0, 1, (int)dx, (int)dy); + } +} + +static const struct zwp_relative_pointer_v1_listener relative_pointer_listener = { + relative_pointer_handle_relative_motion, +}; + +static void +locked_pointer_locked(void *data, + struct zwp_locked_pointer_v1 *locked_pointer) +{ +} + +static void +locked_pointer_unlocked(void *data, + struct zwp_locked_pointer_v1 *locked_pointer) +{ +} + +static const struct zwp_locked_pointer_v1_listener locked_pointer_listener = { + locked_pointer_locked, + locked_pointer_unlocked, +}; + +static void +lock_pointer_to_window(SDL_Window *window, + struct SDL_WaylandInput *input) +{ + SDL_WindowData *w = window->driverdata; + SDL_VideoData *d = input->display; + struct zwp_locked_pointer_v1 *locked_pointer; + + if (w->locked_pointer) + return; + + locked_pointer = + zwp_pointer_constraints_v1_lock_pointer(d->pointer_constraints, + w->surface, + input->pointer, + NULL, + ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT); + zwp_locked_pointer_v1_add_listener(locked_pointer, + &locked_pointer_listener, + window); + + w->locked_pointer = locked_pointer; +} + +int Wayland_input_lock_pointer(struct SDL_WaylandInput *input) +{ + SDL_VideoDevice *vd = SDL_GetVideoDevice(); + SDL_VideoData *d = input->display; + SDL_Window *window; + struct zwp_relative_pointer_v1 *relative_pointer; + + if (!d->relative_pointer_manager) + return -1; + + if (!d->pointer_constraints) + return -1; + + if (!input->relative_pointer) { + relative_pointer = + zwp_relative_pointer_manager_v1_get_relative_pointer( + d->relative_pointer_manager, + input->pointer); + zwp_relative_pointer_v1_add_listener(relative_pointer, + &relative_pointer_listener, + input); + input->relative_pointer = relative_pointer; + } + + for (window = vd->windows; window; window = window->next) + lock_pointer_to_window(window, input); + + d->relative_mouse_mode = 1; + + return 0; +} + +int Wayland_input_unlock_pointer(struct SDL_WaylandInput *input) +{ + SDL_VideoDevice *vd = SDL_GetVideoDevice(); + SDL_VideoData *d = input->display; + SDL_Window *window; + SDL_WindowData *w; + + for (window = vd->windows; window; window = window->next) { + w = window->driverdata; + if (w->locked_pointer) + zwp_locked_pointer_v1_destroy(w->locked_pointer); + w->locked_pointer = NULL; + } + + zwp_relative_pointer_v1_destroy(input->relative_pointer); + input->relative_pointer = NULL; + + d->relative_mouse_mode = 0; + + return 0; +} + +#endif /* SDL_VIDEO_DRIVER_WAYLAND */ + +/* vi: set ts=4 sw=4 expandtab: */ |