diff options
Diffstat (limited to 'xwayland/selection/selection.c')
| -rw-r--r-- | xwayland/selection/selection.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/xwayland/selection/selection.c b/xwayland/selection/selection.c new file mode 100644 index 00000000..39c47c45 --- /dev/null +++ b/xwayland/selection/selection.c @@ -0,0 +1,319 @@ +#define _XOPEN_SOURCE 700 +#include <assert.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <wlr/types/wlr_data_device.h> +#include <wlr/types/wlr_primary_selection.h> +#include <wlr/util/log.h> +#include <xcb/xfixes.h> +#include "xwayland/xwm.h" +#include "xwayland/selection.h" + +void xwm_selection_transfer_remove_source( + struct wlr_xwm_selection_transfer *transfer) { + if (transfer->source != NULL) { + wl_event_source_remove(transfer->source); + transfer->source = NULL; + } +} + +void xwm_selection_transfer_close_source_fd( + struct wlr_xwm_selection_transfer *transfer) { + if (transfer->source_fd >= 0) { + close(transfer->source_fd); + transfer->source_fd = -1; + } +} + +void xwm_selection_transfer_destroy_property_reply( + struct wlr_xwm_selection_transfer *transfer) { + free(transfer->property_reply); + transfer->property_reply = NULL; +} + +xcb_atom_t xwm_mime_type_to_atom(struct wlr_xwm *xwm, char *mime_type) { + if (strcmp(mime_type, "text/plain;charset=utf-8") == 0) { + return xwm->atoms[UTF8_STRING]; + } else if (strcmp(mime_type, "text/plain") == 0) { + return xwm->atoms[TEXT]; + } + + xcb_intern_atom_cookie_t cookie = + xcb_intern_atom(xwm->xcb_conn, 0, strlen(mime_type), mime_type); + xcb_intern_atom_reply_t *reply = + xcb_intern_atom_reply(xwm->xcb_conn, cookie, NULL); + if (reply == NULL) { + return XCB_ATOM_NONE; + } + xcb_atom_t atom = reply->atom; + free(reply); + return atom; +} + +char *xwm_mime_type_from_atom(struct wlr_xwm *xwm, xcb_atom_t atom) { + if (atom == xwm->atoms[UTF8_STRING]) { + return strdup("text/plain;charset=utf-8"); + } else if (atom == xwm->atoms[TEXT]) { + return strdup("text/plain"); + } else { + return xwm_get_atom_name(xwm, atom); + } +} + +struct wlr_xwm_selection *xwm_get_selection(struct wlr_xwm *xwm, + xcb_atom_t selection_atom) { + if (selection_atom == xwm->atoms[CLIPBOARD]) { + return &xwm->clipboard_selection; + } else if (selection_atom == xwm->atoms[PRIMARY]) { + return &xwm->primary_selection; + } else if (selection_atom == xwm->atoms[DND_SELECTION]) { + return &xwm->dnd_selection; + } else { + return NULL; + } +} + +static int xwm_handle_selection_property_notify(struct wlr_xwm *xwm, + xcb_property_notify_event_t *event) { + struct wlr_xwm_selection *selections[] = { + &xwm->clipboard_selection, + &xwm->primary_selection, + &xwm->dnd_selection, + }; + + for (size_t i = 0; i < sizeof(selections)/sizeof(selections[0]); ++i) { + struct wlr_xwm_selection *selection = selections[i]; + + if (event->window == selection->window) { + if (event->state == XCB_PROPERTY_NEW_VALUE && + event->atom == xwm->atoms[WL_SELECTION] && + selection->incoming.incr) { + xwm_get_incr_chunk(&selection->incoming); + } + return 1; + } + + struct wlr_xwm_selection_transfer *outgoing; + wl_list_for_each(outgoing, &selection->outgoing, outgoing_link) { + if (event->window == outgoing->request.requestor) { + if (event->state == XCB_PROPERTY_DELETE && + event->atom == outgoing->request.property && + outgoing->incr) { + xwm_send_incr_chunk(outgoing); + } + return 1; + } + } + } + + return 0; +} + +int xwm_handle_selection_event(struct wlr_xwm *xwm, + xcb_generic_event_t *event) { + if (xwm->seat == NULL) { + wlr_log(L_DEBUG, "not handling selection events: " + "no seat assigned to xwayland"); + return 0; + } + + switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) { + case XCB_SELECTION_NOTIFY: + xwm_handle_selection_notify(xwm, (xcb_selection_notify_event_t *)event); + return 1; + case XCB_PROPERTY_NOTIFY: + return xwm_handle_selection_property_notify(xwm, + (xcb_property_notify_event_t *)event); + case XCB_SELECTION_REQUEST: + xwm_handle_selection_request(xwm, + (xcb_selection_request_event_t *)event); + return 1; + } + + switch (event->response_type - xwm->xfixes->first_event) { + case XCB_XFIXES_SELECTION_NOTIFY: + // an X11 window has copied something to the clipboard + return xwm_handle_xfixes_selection_notify(xwm, + (xcb_xfixes_selection_notify_event_t *)event); + } + + return 0; +} + +static void selection_init(struct wlr_xwm *xwm, + struct wlr_xwm_selection *selection, xcb_atom_t atom) { + selection->xwm = xwm; + selection->atom = atom; + selection->window = xwm->selection_window; + selection->incoming.selection = selection; + wl_list_init(&selection->outgoing); + + uint32_t mask = + XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER | + XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_WINDOW_DESTROY | + XCB_XFIXES_SELECTION_EVENT_MASK_SELECTION_CLIENT_CLOSE; + xcb_xfixes_select_selection_input(xwm->xcb_conn, selection->window, + selection->atom, mask); +} + +void xwm_selection_init(struct wlr_xwm *xwm) { + // Clipboard and primary selection + uint32_t selection_values[] = { + XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE + }; + xwm->selection_window = xcb_generate_id(xwm->xcb_conn); + xcb_create_window(xwm->xcb_conn, + XCB_COPY_FROM_PARENT, + xwm->selection_window, + xwm->screen->root, + 0, 0, + 10, 10, + 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + xwm->screen->root_visual, + XCB_CW_EVENT_MASK, selection_values); + + xcb_set_selection_owner(xwm->xcb_conn, + xwm->selection_window, + xwm->atoms[CLIPBOARD_MANAGER], + XCB_TIME_CURRENT_TIME); + + selection_init(xwm, &xwm->clipboard_selection, xwm->atoms[CLIPBOARD]); + selection_init(xwm, &xwm->primary_selection, xwm->atoms[PRIMARY]); + + // Drag'n'drop + uint32_t dnd_values[] = { + XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE + }; + xwm->dnd_window = xcb_generate_id(xwm->xcb_conn); + xcb_create_window(xwm->xcb_conn, + XCB_COPY_FROM_PARENT, + xwm->dnd_window, + xwm->screen->root, + 0, 0, + 8192, 8192, + 0, + XCB_WINDOW_CLASS_INPUT_ONLY, + xwm->screen->root_visual, + XCB_CW_EVENT_MASK, dnd_values); + + uint32_t version = XDND_VERSION; + xcb_change_property(xwm->xcb_conn, + XCB_PROP_MODE_REPLACE, + xwm->dnd_window, + xwm->atoms[DND_AWARE], + XCB_ATOM_ATOM, + 32, // format + 1, &version); + + selection_init(xwm, &xwm->dnd_selection, xwm->atoms[DND_SELECTION]); +} + +void xwm_selection_finish(struct wlr_xwm *xwm) { + if (!xwm) { + return; + } + if (xwm->selection_window) { + xcb_destroy_window(xwm->xcb_conn, xwm->selection_window); + } + if (xwm->dnd_window) { + xcb_destroy_window(xwm->xcb_conn, xwm->dnd_window); + } + if (xwm->seat) { + if (xwm->seat->selection_source && + wlr_data_source_is_xwayland_data_source( + xwm->seat->selection_source)) { + wlr_seat_set_selection(xwm->seat, NULL, + wl_display_next_serial(xwm->xwayland->wl_display)); + } + if (xwm->seat->primary_selection_source && + wlr_primary_selection_source_is_xwayland_primary_selection_source( + xwm->seat->primary_selection_source)) { + wlr_seat_set_primary_selection(xwm->seat, NULL, + wl_display_next_serial(xwm->xwayland->wl_display)); + } + wlr_xwayland_set_seat(xwm->xwayland, NULL); + } +} + +static void xwm_selection_set_owner(struct wlr_xwm_selection *selection, + bool set) { + if (set) { + xcb_set_selection_owner(selection->xwm->xcb_conn, + selection->window, + selection->atom, + XCB_TIME_CURRENT_TIME); + } else { + if (selection->owner == selection->window) { + xcb_set_selection_owner(selection->xwm->xcb_conn, + XCB_WINDOW_NONE, + selection->atom, + selection->timestamp); + } + } +} + +static void seat_handle_selection(struct wl_listener *listener, + void *data) { + struct wlr_seat *seat = data; + struct wlr_xwm *xwm = + wl_container_of(listener, xwm, seat_selection); + struct wlr_data_source *source = seat->selection_source; + + if (source != NULL && wlr_data_source_is_xwayland_data_source(source)) { + return; + } + + xwm_selection_set_owner(&xwm->clipboard_selection, source != NULL); +} + +static void seat_handle_primary_selection(struct wl_listener *listener, + void *data) { + struct wlr_seat *seat = data; + struct wlr_xwm *xwm = + wl_container_of(listener, xwm, seat_primary_selection); + struct wlr_primary_selection_source *source = seat->primary_selection_source; + + if (source != NULL && + wlr_primary_selection_source_is_xwayland_primary_selection_source( + source)) { + return; + } + + xwm_selection_set_owner(&xwm->primary_selection, source != NULL); +} + +static void seat_handle_start_drag(struct wl_listener *listener, void *data) { + struct wlr_xwm *xwm = wl_container_of(listener, xwm, seat_start_drag); + struct wlr_drag *drag = data; + + xwm_selection_set_owner(&xwm->dnd_selection, drag != NULL); + xwm_seat_handle_start_drag(xwm, drag); +} + +void xwm_set_seat(struct wlr_xwm *xwm, struct wlr_seat *seat) { + if (xwm->seat != NULL) { + wl_list_remove(&xwm->seat_selection.link); + wl_list_remove(&xwm->seat_primary_selection.link); + wl_list_remove(&xwm->seat_start_drag.link); + xwm->seat = NULL; + } + + if (seat == NULL) { + return; + } + + xwm->seat = seat; + + wl_signal_add(&seat->events.selection, &xwm->seat_selection); + xwm->seat_selection.notify = seat_handle_selection; + wl_signal_add(&seat->events.primary_selection, &xwm->seat_primary_selection); + xwm->seat_primary_selection.notify = seat_handle_primary_selection; + wl_signal_add(&seat->events.start_drag, &xwm->seat_start_drag); + xwm->seat_start_drag.notify = seat_handle_start_drag; + + seat_handle_selection(&xwm->seat_selection, seat); + seat_handle_primary_selection(&xwm->seat_primary_selection, seat); +} |