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xwayland: only send one target at a time

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This commit is contained in:
emersion 2018-04-03 00:41:26 -04:00
parent 103e59703f
commit 8f84c5b05f
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GPG Key ID: 0FDE7BE0E88F5E48
2 changed files with 117 additions and 56 deletions
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3
include/xwayland/xwm.h
View File

@ -85,6 +85,7 @@ struct wlr_xwm_selection;
struct wlr_xwm_selection_transfer {
struct wlr_xwm_selection *selection;
bool incr;
bool flush_property_on_delete;
bool property_set;
@ -94,6 +95,7 @@ struct wlr_xwm_selection_transfer {
// when sending to x11
xcb_selection_request_event_t request;
struct wl_list outgoing_link;
// when receiving from x11
int property_start;
@ -108,6 +110,7 @@ struct wlr_xwm_selection {
xcb_timestamp_t timestamp;
struct wlr_xwm_selection_transfer incoming;
struct wl_list outgoing;
};
struct wlr_xwm {

170
xwayland/selection.c
View File

@ -79,7 +79,7 @@ static int xwm_selection_flush_source_data(
return length;
}
static void xwm_data_source_remove_source(
static void xwm_selection_transfer_remove_source(
struct wlr_xwm_selection_transfer *transfer) {
if (transfer->source != NULL) {
wl_event_source_remove(transfer->source);
@ -87,7 +87,7 @@ static void xwm_data_source_remove_source(
}
}
static void xwm_data_source_close_source_fd(
static void xwm_selection_transfer_close_source_fd(
struct wlr_xwm_selection_transfer *transfer) {
if (transfer->source_fd >= 0) {
close(transfer->source_fd);
@ -95,6 +95,27 @@ static void xwm_data_source_close_source_fd(
}
}
static void xwm_selection_transfer_start_outgoing(
struct wlr_xwm_selection_transfer *transfer);
static void xwm_selection_transfer_destroy_outgoing(
struct wlr_xwm_selection_transfer *transfer) {
wl_list_remove(&transfer->outgoing_link);
// Start next queued transfer
struct wlr_xwm_selection_transfer *first = NULL;
if (!wl_list_empty(&transfer->selection->outgoing)) {
first = wl_container_of(transfer->selection->outgoing.prev, first,
outgoing_link);
xwm_selection_transfer_start_outgoing(first);
}
xwm_selection_transfer_remove_source(transfer);
xwm_selection_transfer_close_source_fd(transfer);
wl_array_release(&transfer->source_data);
free(transfer);
}
static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
struct wlr_xwm_selection_transfer *transfer = data;
struct wlr_xwm *xwm = transfer->selection->xwm;
@ -137,14 +158,14 @@ static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
transfer->incr = true;
transfer->property_set = true;
transfer->flush_property_on_delete = true;
xwm_data_source_remove_source(transfer);
xwm_selection_transfer_remove_source(transfer);
xwm_selection_send_notify(xwm, &transfer->request, true);
} else if (transfer->property_set) {
wlr_log(L_DEBUG, "got %zu bytes, waiting for property delete",
transfer->source_data.size);
transfer->flush_property_on_delete = true;
xwm_data_source_remove_source(transfer);
xwm_selection_transfer_remove_source(transfer);
} else {
wlr_log(L_DEBUG, "got %zu bytes, property deleted, setting new "
"property", transfer->source_data.size);
@ -154,11 +175,7 @@ static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
wlr_log(L_DEBUG, "non-incr transfer complete");
xwm_selection_flush_source_data(transfer);
xwm_selection_send_notify(xwm, &transfer->request, true);
xcb_flush(xwm->xcb_conn);
xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(transfer);
wl_array_release(&transfer->source_data);
transfer->request.requestor = XCB_NONE;
xwm_selection_transfer_destroy_outgoing(transfer);
} else if (len == 0 && transfer->incr) {
wlr_log(L_DEBUG, "incr transfer complete");
@ -171,9 +188,7 @@ static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
"property", transfer->source_data.size);
xwm_selection_flush_source_data(transfer);
}
xcb_flush(xwm->xcb_conn);
xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(transfer);
xwm_selection_transfer_destroy_outgoing(transfer);
} else {
wlr_log(L_DEBUG, "nothing happened, buffered the bytes");
}
@ -182,9 +197,7 @@ static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
error_out:
xwm_selection_send_notify(xwm, &transfer->request, false);
xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(transfer);
wl_array_release(&transfer->source_data);
xwm_selection_transfer_destroy_outgoing(transfer);
return 0;
}
@ -240,6 +253,15 @@ static struct wl_array *xwm_selection_source_get_mime_types(
return NULL;
}
static void xwm_selection_transfer_start_outgoing(
struct wlr_xwm_selection_transfer *transfer) {
struct wlr_xwm *xwm = transfer->selection->xwm;
struct wl_event_loop *loop =
wl_display_get_event_loop(xwm->xwayland->wl_display);
transfer->source = wl_event_loop_add_fd(loop, transfer->source_fd,
WL_EVENT_READABLE, xwm_data_source_read, transfer);
}
/**
* Read the Wayland selection and send it to an Xwayland client.
*/
@ -293,15 +315,16 @@ static void xwm_selection_send_data(struct wlr_xwm_selection *selection,
transfer->source_fd = p[0];
struct wl_event_loop *loop =
wl_display_get_event_loop(selection->xwm->xwayland->wl_display);
transfer->source = wl_event_loop_add_fd(loop, transfer->source_fd,
WL_EVENT_READABLE, xwm_data_source_read, transfer);
wlr_log(L_DEBUG, "Sending Wayland selection %u to Xwayland window with "
"MIME type %s", req->target, mime_type);
"MIME type %s, target %u", req->target, mime_type, req->target);
xwm_selection_source_send(selection, mime_type, p[1]);
// TODO close(p[1]);
wl_list_insert(&selection->outgoing, &transfer->outgoing_link);
// We can only handle one transfer at a time
if (wl_list_length(&selection->outgoing) == 1) {
xwm_selection_transfer_start_outgoing(transfer);
}
}
static xcb_atom_t xwm_mime_type_to_atom(struct wlr_xwm *xwm, char *mime_type) {
@ -523,10 +546,7 @@ static char *xwm_mime_type_from_atom(struct wlr_xwm *xwm, xcb_atom_t atom) {
}
static void xwm_handle_selection_request(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
xcb_selection_request_event_t *req =
(xcb_selection_request_event_t *) event;
xcb_selection_request_event_t *req) {
wlr_log(L_DEBUG, "XCB_SELECTION_REQUEST (time=%u owner=%u, requestor=%u "
"selection=%u, target=%u, property=%u)",
req->time, req->owner, req->requestor, req->selection, req->target,
@ -582,7 +602,45 @@ static void xwm_handle_selection_request(struct wlr_xwm *xwm,
}
}
static void xwm_data_source_destroy_property_reply(
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 == xwm->selection_window) {
if (event->state == XCB_PROPERTY_NEW_VALUE &&
event->atom == xwm->atoms[WL_SELECTION] &&
selection->incoming.incr) {
wlr_log(L_DEBUG, "get incr chunk");
// TODO
}
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) {
wlr_log(L_DEBUG, "send incr chunk");
// TODO
}
return 1;
}
}
}
return 0;
}
static void xwm_selection_transfer_destroy_property_reply(
struct wlr_xwm_selection_transfer *transfer) {
free(transfer->property_reply);
transfer->property_reply = NULL;
@ -601,9 +659,9 @@ static int xwm_data_source_write(int fd, uint32_t mask, void *data) {
ssize_t len = write(fd, property + transfer->property_start, remainder);
if (len == -1) {
xwm_data_source_destroy_property_reply(transfer);
xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(transfer);
xwm_selection_transfer_destroy_property_reply(transfer);
xwm_selection_transfer_remove_source(transfer);
xwm_selection_transfer_close_source_fd(transfer);
wlr_log(L_ERROR, "write error to target fd: %m");
return 1;
}
@ -614,15 +672,15 @@ static int xwm_data_source_write(int fd, uint32_t mask, void *data) {
transfer->property_start += len;
if (len == remainder) {
xwm_data_source_destroy_property_reply(transfer);
xwm_data_source_remove_source(transfer);
xwm_selection_transfer_destroy_property_reply(transfer);
xwm_selection_transfer_remove_source(transfer);
if (transfer->incr) {
xcb_delete_property(xwm->xcb_conn, transfer->selection->window,
xwm->atoms[WL_SELECTION]);
} else {
wlr_log(L_DEBUG, "transfer complete");
xwm_data_source_close_source_fd(transfer);
xwm_selection_transfer_close_source_fd(transfer);
}
}
@ -906,23 +964,20 @@ static void xwm_selection_get_targets(struct wlr_xwm_selection *selection) {
}
static void xwm_handle_selection_notify(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
xcb_selection_notify_event_t *selection_notify =
(xcb_selection_notify_event_t *) event;
xcb_selection_notify_event_t *event) {
wlr_log(L_DEBUG, "XCB_SELECTION_NOTIFY (selection=%u, property=%u, target=%u)",
selection_notify->selection, selection_notify->property,
selection_notify->target);
event->selection, event->property,
event->target);
struct wlr_xwm_selection *selection =
xwm_get_selection(xwm, selection_notify->selection);
xwm_get_selection(xwm, event->selection);
if (selection == NULL) {
return;
}
if (selection_notify->property == XCB_ATOM_NONE) {
if (event->property == XCB_ATOM_NONE) {
wlr_log(L_ERROR, "convert selection failed");
} else if (selection_notify->target == xwm->atoms[TARGETS]) {
} else if (event->target == xwm->atoms[TARGETS]) {
// No xwayland surface focused, deny access to clipboard
if (xwm->focus_surface == NULL) {
wlr_log(L_DEBUG, "denying write access to clipboard: "
@ -938,20 +993,17 @@ static void xwm_handle_selection_notify(struct wlr_xwm *xwm,
}
static int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
xcb_xfixes_selection_notify_event_t *xfixes_selection_notify =
(xcb_xfixes_selection_notify_event_t *)event;
xcb_xfixes_selection_notify_event_t *event) {
wlr_log(L_DEBUG, "XCB_XFIXES_SELECTION_NOTIFY (selection=%u, owner=%u)",
xfixes_selection_notify->selection, xfixes_selection_notify->owner);
event->selection, event->owner);
struct wlr_xwm_selection *selection =
xwm_get_selection(xwm, xfixes_selection_notify->selection);
xwm_get_selection(xwm, event->selection);
if (selection == NULL) {
return 0;
}
if (xfixes_selection_notify->owner == XCB_WINDOW_NONE) {
if (event->owner == XCB_WINDOW_NONE) {
if (selection->owner != selection->window) {
// A real X client selection went away, not our
// proxy selection
@ -973,13 +1025,13 @@ static int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
return 1;
}
selection->owner = xfixes_selection_notify->owner;
selection->owner = event->owner;
// We have to use XCB_TIME_CURRENT_TIME when we claim the
// selection, so grab the actual timestamp here so we can
// answer TIMESTAMP conversion requests correctly.
if (xfixes_selection_notify->owner == selection->window) {
selection->timestamp = xfixes_selection_notify->timestamp;
if (event->owner == selection->window) {
selection->timestamp = event->timestamp;
return 1;
}
@ -990,7 +1042,7 @@ static int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
selection->atom,
xwm->atoms[TARGETS],
xwm->atoms[WL_SELECTION],
xfixes_selection_notify->timestamp);
event->timestamp);
xcb_flush(xwm->xcb_conn);
return 1;
@ -1006,17 +1058,22 @@ int xwm_handle_selection_event(struct wlr_xwm *xwm,
switch (event->response_type & ~0x80) {
case XCB_SELECTION_NOTIFY:
xwm_handle_selection_notify(xwm, event);
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, event);
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, event);
return xwm_handle_xfixes_selection_notify(xwm,
(xcb_xfixes_selection_notify_event_t *)event);
}
return 0;
@ -1100,6 +1157,7 @@ static void selection_init(struct wlr_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 |