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xwayland: support multiple wayland → xwayland selection transfers

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This fixes drag'n'drop support for Chromium.
This commit is contained in:
emersion 2018-04-02 19:56:41 -04:00
parent 8836b4f024
commit 92b74071d0
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GPG key ID: 0FDE7BE0E88F5E48
3 changed files with 239 additions and 206 deletions
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32
include/xwayland/xwm.h
View file

@ -47,6 +47,7 @@ enum atom_name {
INCR, INCR,
TEXT, TEXT,
TIMESTAMP, TIMESTAMP,
DELETE,
NET_WM_WINDOW_TYPE_UTILITY, NET_WM_WINDOW_TYPE_UTILITY,
NET_WM_WINDOW_TYPE_TOOLTIP, NET_WM_WINDOW_TYPE_TOOLTIP,
NET_WM_WINDOW_TYPE_DND, NET_WM_WINDOW_TYPE_DND,
@ -80,22 +81,33 @@ enum net_wm_state_action {
#define XDND_VERSION 5 #define XDND_VERSION 5
struct wlr_xwm_selection;
struct wlr_xwm_selection_transfer {
struct wlr_xwm_selection *selection;
bool incr;
bool flush_property_on_delete;
bool property_set;
struct wl_array source_data;
int source_fd;
struct wl_event_source *source;
// when sending to x11
xcb_selection_request_event_t request;
// when receiving from x11
int property_start;
xcb_get_property_reply_t *property_reply;
};
struct wlr_xwm_selection { struct wlr_xwm_selection {
struct wlr_xwm *xwm; struct wlr_xwm *xwm;
xcb_atom_t atom; xcb_atom_t atom;
xcb_window_t window; xcb_window_t window;
xcb_selection_request_event_t request;
xcb_window_t owner; xcb_window_t owner;
xcb_timestamp_t timestamp; xcb_timestamp_t timestamp;
int incr;
int source_fd; struct wlr_xwm_selection_transfer incoming;
int property_start;
xcb_get_property_reply_t *property_reply;
struct wl_event_source *property_source;
int flush_property_on_delete;
struct wl_array source_data;
xcb_atom_t target;
bool property_set;
}; };
struct wlr_xwm { struct wlr_xwm {

400
xwayland/selection.c
View file

@ -38,144 +38,143 @@ static enum wl_data_device_manager_dnd_action
return WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE; return WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE;
} }
static void xwm_selection_send_notify(struct wlr_xwm_selection *selection, static void xwm_selection_send_notify(struct wlr_xwm *xwm,
xcb_atom_t property) { xcb_selection_request_event_t *req, xcb_atom_t property) {
xcb_selection_notify_event_t selection_notify = { xcb_selection_notify_event_t selection_notify = {
.response_type = XCB_SELECTION_NOTIFY, .response_type = XCB_SELECTION_NOTIFY,
.sequence = 0, .sequence = 0,
.time = selection->request.time, .time = req->time,
.requestor = selection->request.requestor, .requestor = req->requestor,
.selection = selection->request.selection, .selection = req->selection,
.target = selection->request.target, .target = req->target,
.property = property, .property = property,
}; };
wlr_log(L_DEBUG, "SendEvent destination=%d SelectionNotify(31) time=%d " wlr_log(L_DEBUG, "SendEvent destination=%d SelectionNotify(31) time=%d "
"requestor=%d selection=%d target=%d property=%d", "requestor=%d selection=%d target=%d property=%d", req->requestor,
selection->request.requestor, req->time, req->requestor, req->selection, req->target, property);
selection->request.time, xcb_send_event(xwm->xcb_conn,
selection->request.requestor,
selection->request.selection,
selection->request.target,
property);
xcb_send_event(selection->xwm->xcb_conn,
0, // propagate 0, // propagate
selection->request.requestor, req->requestor,
XCB_EVENT_MASK_NO_EVENT, XCB_EVENT_MASK_NO_EVENT,
(const char *)&selection_notify); (const char *)&selection_notify);
xcb_flush(selection->xwm->xcb_conn); xcb_flush(xwm->xcb_conn);
} }
static int xwm_selection_flush_source_data(struct wlr_xwm_selection *selection) { static int xwm_selection_flush_source_data(
xcb_change_property(selection->xwm->xcb_conn, struct wlr_xwm_selection_transfer *transfer) {
xcb_change_property(transfer->selection->xwm->xcb_conn,
XCB_PROP_MODE_REPLACE, XCB_PROP_MODE_REPLACE,
selection->request.requestor, transfer->request.requestor,
selection->request.property, transfer->request.property,
selection->target, transfer->request.target,
8, // format 8, // format
selection->source_data.size, transfer->source_data.size,
selection->source_data.data); transfer->source_data.data);
selection->property_set = true; transfer->property_set = true;
int length = selection->source_data.size; size_t length = transfer->source_data.size;
selection->source_data.size = 0; transfer->source_data.size = 0;
return length; return length;
} }
static void xwm_data_source_remove_property_source( static void xwm_data_source_remove_source(
struct wlr_xwm_selection *selection) { struct wlr_xwm_selection_transfer *transfer) {
if (selection->property_source) { if (transfer->source != NULL) {
wl_event_source_remove(selection->property_source); wl_event_source_remove(transfer->source);
transfer->source = NULL;
} }
selection->property_source = NULL;
} }
static void xwm_data_source_close_source_fd( static void xwm_data_source_close_source_fd(
struct wlr_xwm_selection *selection) { struct wlr_xwm_selection_transfer *transfer) {
close(selection->source_fd); if (transfer->source_fd >= 0) {
selection->source_fd = -1; close(transfer->source_fd);
transfer->source_fd = -1;
}
} }
static int xwm_data_source_read(int fd, uint32_t mask, void *data) { static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
struct wlr_xwm_selection *selection = data; struct wlr_xwm_selection_transfer *transfer = data;
struct wlr_xwm *xwm = selection->xwm; struct wlr_xwm *xwm = transfer->selection->xwm;
void *p; void *p;
int current = selection->source_data.size; size_t current = transfer->source_data.size;
if (selection->source_data.size < incr_chunk_size) { if (transfer->source_data.size < incr_chunk_size) {
p = wl_array_add(&selection->source_data, incr_chunk_size); p = wl_array_add(&transfer->source_data, incr_chunk_size);
if (!p){ if (p == NULL) {
wlr_log(L_ERROR, "Could not allocate selection source_data"); wlr_log(L_ERROR, "Could not allocate selection source_data");
goto error_out; goto error_out;
} }
} else { } else {
p = (char *) selection->source_data.data + selection->source_data.size; p = (char *)transfer->source_data.data + transfer->source_data.size;
} }
int available = selection->source_data.alloc - current; size_t available = transfer->source_data.alloc - current;
ssize_t len = read(fd, p, available);
int len = read(fd, p, available);
if (len == -1) { if (len == -1) {
wlr_log(L_ERROR, "read error from data source: %m"); wlr_log(L_ERROR, "read error from data source: %m");
goto error_out; goto error_out;
} }
wlr_log(L_DEBUG, "read %d (available %d, mask 0x%x) bytes: \"%.*s\"", wlr_log(L_DEBUG, "read %ld (available %zu, mask 0x%x) bytes: \"%.*s\"",
len, available, mask, len, (char *) p); len, available, mask, (int)len, (char *)p);
selection->source_data.size = current + len; transfer->source_data.size = current + len;
if (selection->source_data.size >= incr_chunk_size) { if (transfer->source_data.size >= incr_chunk_size) {
if (!selection->incr) { if (!transfer->incr) {
wlr_log(L_DEBUG, "got %zu bytes, starting incr", wlr_log(L_DEBUG, "got %zu bytes, starting incr",
selection->source_data.size); transfer->source_data.size);
selection->incr = 1;
xcb_change_property(xwm->xcb_conn, xcb_change_property(xwm->xcb_conn,
XCB_PROP_MODE_REPLACE, XCB_PROP_MODE_REPLACE,
selection->request.requestor, transfer->request.requestor,
selection->request.property, transfer->request.property,
xwm->atoms[INCR], xwm->atoms[INCR],
32, /* format */ 32, /* format */
1, &incr_chunk_size); 1, &incr_chunk_size);
selection->property_set = true; transfer->incr = true;
selection->flush_property_on_delete = 1; transfer->property_set = true;
xwm_data_source_remove_property_source(selection); transfer->flush_property_on_delete = true;
xwm_selection_send_notify(selection, selection->request.property); xwm_data_source_remove_source(transfer);
} else if (selection->property_set) { xwm_selection_send_notify(xwm, &transfer->request,
transfer->request.property);
} else if (transfer->property_set) {
wlr_log(L_DEBUG, "got %zu bytes, waiting for property delete", wlr_log(L_DEBUG, "got %zu bytes, waiting for property delete",
selection->source_data.size); transfer->source_data.size);
selection->flush_property_on_delete = 1; transfer->flush_property_on_delete = true;
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
} else { } else {
wlr_log(L_DEBUG, "got %zu bytes, property deleted, setting new " wlr_log(L_DEBUG, "got %zu bytes, property deleted, setting new "
"property", selection->source_data.size); "property", transfer->source_data.size);
xwm_selection_flush_source_data(selection); xwm_selection_flush_source_data(transfer);
} }
} else if (len == 0 && !selection->incr) { } else if (len == 0 && !transfer->incr) {
wlr_log(L_DEBUG, "non-incr transfer complete"); wlr_log(L_DEBUG, "non-incr transfer complete");
/* Non-incr transfer all done. */ /* Non-incr transfer all done. */
xwm_selection_flush_source_data(selection); xwm_selection_flush_source_data(transfer);
xwm_selection_send_notify(selection, selection->request.property); xwm_selection_send_notify(xwm, &transfer->request,
transfer->request.property);
xcb_flush(xwm->xcb_conn); xcb_flush(xwm->xcb_conn);
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(selection); xwm_data_source_close_source_fd(transfer);
wl_array_release(&selection->source_data); wl_array_release(&transfer->source_data);
selection->request.requestor = XCB_NONE; transfer->request.requestor = XCB_NONE;
} else if (len == 0 && selection->incr) { } else if (len == 0 && transfer->incr) {
wlr_log(L_DEBUG, "incr transfer complete"); wlr_log(L_DEBUG, "incr transfer complete");
selection->flush_property_on_delete = 1; transfer->flush_property_on_delete = true;
if (selection->property_set) { if (transfer->property_set) {
wlr_log(L_DEBUG, "got %zu bytes, waiting for property delete", wlr_log(L_DEBUG, "got %zu bytes, waiting for property delete",
selection->source_data.size); transfer->source_data.size);
} else { } else {
wlr_log(L_DEBUG, "got %zu bytes, property deleted, setting new " wlr_log(L_DEBUG, "got %zu bytes, property deleted, setting new "
"property", selection->source_data.size); "property", transfer->source_data.size);
xwm_selection_flush_source_data(selection); xwm_selection_flush_source_data(transfer);
} }
xcb_flush(xwm->xcb_conn); xcb_flush(xwm->xcb_conn);
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(selection); xwm_data_source_close_source_fd(transfer);
} else { } else {
wlr_log(L_DEBUG, "nothing happened, buffered the bytes"); wlr_log(L_DEBUG, "nothing happened, buffered the bytes");
} }
@ -183,10 +182,10 @@ static int xwm_data_source_read(int fd, uint32_t mask, void *data) {
return 1; return 1;
error_out: error_out:
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(xwm, &transfer->request, XCB_ATOM_NONE);
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(selection); xwm_data_source_close_source_fd(transfer);
wl_array_release(&selection->source_data); wl_array_release(&transfer->source_data);
return 0; return 0;
} }
@ -242,14 +241,17 @@ static struct wl_array *xwm_selection_source_get_mime_types(
return NULL; return NULL;
} }
/**
* Read the Wayland selection and send it to an Xwayland client.
*/
static void xwm_selection_send_data(struct wlr_xwm_selection *selection, static void xwm_selection_send_data(struct wlr_xwm_selection *selection,
xcb_atom_t target, const char *mime_type) { xcb_selection_request_event_t *req, const char *mime_type) {
// Check MIME type // Check MIME type
struct wl_array *mime_types = struct wl_array *mime_types =
xwm_selection_source_get_mime_types(selection); xwm_selection_source_get_mime_types(selection);
if (mime_types == NULL) { if (mime_types == NULL) {
wlr_log(L_ERROR, "not sending selection: no MIME type list available"); wlr_log(L_ERROR, "not sending selection: no MIME type list available");
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(selection->xwm, req, XCB_ATOM_NONE);
return; return;
} }
@ -265,50 +267,45 @@ static void xwm_selection_send_data(struct wlr_xwm_selection *selection,
if (!found) { if (!found) {
wlr_log(L_ERROR, "not sending selection: " wlr_log(L_ERROR, "not sending selection: "
"requested an unsupported MIME type %s", mime_type); "requested an unsupported MIME type %s", mime_type);
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(selection->xwm, req, XCB_ATOM_NONE);
return; return;
} }
struct wlr_xwm_selection_transfer *transfer =
calloc(1, sizeof(struct wlr_xwm_selection_transfer));
if (transfer == NULL) {
wlr_log(L_ERROR, "Allocation failed");
return;
}
transfer->selection = selection;
transfer->request = *req;
wl_array_init(&transfer->source_data);
int p[2]; int p[2];
if (pipe(p) == -1) { if (pipe(p) == -1) {
wlr_log(L_ERROR, "pipe failed: %m"); wlr_log(L_ERROR, "pipe() failed: %m");
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(selection->xwm, req, XCB_ATOM_NONE);
return; return;
} }
fcntl(p[0], F_SETFD, FD_CLOEXEC); fcntl(p[0], F_SETFD, FD_CLOEXEC);
fcntl(p[0], F_SETFL, O_NONBLOCK); fcntl(p[0], F_SETFL, O_NONBLOCK);
fcntl(p[1], F_SETFD, FD_CLOEXEC); fcntl(p[1], F_SETFD, FD_CLOEXEC);
fcntl(p[1], F_SETFL, O_NONBLOCK); fcntl(p[1], F_SETFL, O_NONBLOCK);
wl_array_init(&selection->source_data); transfer->source_fd = p[0];
selection->target = target;
selection->source_fd = p[0];
struct wl_event_loop *loop = struct wl_event_loop *loop =
wl_display_get_event_loop(selection->xwm->xwayland->wl_display); wl_display_get_event_loop(selection->xwm->xwayland->wl_display);
selection->property_source = wl_event_loop_add_fd(loop, transfer->source = wl_event_loop_add_fd(loop, transfer->source_fd,
selection->source_fd, WL_EVENT_READABLE, xwm_data_source_read, WL_EVENT_READABLE, xwm_data_source_read, transfer);
selection);
wlr_log(L_DEBUG, "Sending Wayland selection to Xwayland window with " wlr_log(L_DEBUG, "Sending Wayland selection %u to Xwayland window with "
"MIME type %s", mime_type); "MIME type %s", req->target, mime_type);
xwm_selection_source_send(selection, mime_type, p[1]); xwm_selection_source_send(selection, mime_type, p[1]);
close(p[1]); // TODO close(p[1]);
} }
static void xwm_selection_send_timestamp(struct wlr_xwm_selection *selection) { static xcb_atom_t xwm_mime_type_to_atom(struct wlr_xwm *xwm, char *mime_type) {
xcb_change_property(selection->xwm->xcb_conn,
XCB_PROP_MODE_REPLACE,
selection->request.requestor,
selection->request.property,
XCB_ATOM_INTEGER,
32, // format
1, &selection->timestamp);
xwm_selection_send_notify(selection, selection->request.property);
}
static xcb_atom_t xwm_get_mime_type_atom(struct wlr_xwm *xwm, char *mime_type) {
if (strcmp(mime_type, "text/plain;charset=utf-8") == 0) { if (strcmp(mime_type, "text/plain;charset=utf-8") == 0) {
return xwm->atoms[UTF8_STRING]; return xwm->atoms[UTF8_STRING];
} else if (strcmp(mime_type, "text/plain") == 0) { } else if (strcmp(mime_type, "text/plain") == 0) {
@ -366,7 +363,7 @@ static void xwm_dnd_send_enter(struct wlr_xwm *xwm) {
char **mime_type_ptr; char **mime_type_ptr;
wl_array_for_each(mime_type_ptr, mime_types) { wl_array_for_each(mime_type_ptr, mime_types) {
char *mime_type = *mime_type_ptr; char *mime_type = *mime_type_ptr;
data.data32[2+i] = xwm_get_mime_type_atom(xwm, mime_type); data.data32[2+i] = xwm_mime_type_to_atom(xwm, mime_type);
++i; ++i;
} }
} else { } else {
@ -379,7 +376,7 @@ static void xwm_dnd_send_enter(struct wlr_xwm *xwm) {
char **mime_type_ptr; char **mime_type_ptr;
wl_array_for_each(mime_type_ptr, mime_types) { wl_array_for_each(mime_type_ptr, mime_types) {
char *mime_type = *mime_type_ptr; char *mime_type = *mime_type_ptr;
targets[i] = xwm_get_mime_type_atom(xwm, mime_type); targets[i] = xwm_mime_type_to_atom(xwm, mime_type);
++i; ++i;
} }
@ -453,14 +450,16 @@ static void xwm_dnd_send_leave(struct wlr_xwm *xwm) {
xwm_dnd_send_event(xwm, xwm->atoms[DND_FINISHED], &data); xwm_dnd_send_event(xwm, xwm->atoms[DND_FINISHED], &data);
}*/ }*/
static void xwm_selection_send_targets(struct wlr_xwm_selection *selection) { static void xwm_selection_send_targets(struct wlr_xwm_selection *selection,
xcb_selection_request_event_t *req) {
struct wlr_xwm *xwm = selection->xwm; struct wlr_xwm *xwm = selection->xwm;
struct wl_array *mime_types = xwm_selection_source_get_mime_types(selection); struct wl_array *mime_types =
xwm_selection_source_get_mime_types(selection);
if (mime_types == NULL) { if (mime_types == NULL) {
wlr_log(L_ERROR, "not sending selection targets: " wlr_log(L_ERROR, "not sending selection targets: "
"no selection source available"); "no selection source available");
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(selection->xwm, req, XCB_ATOM_NONE);
return; return;
} }
@ -473,19 +472,32 @@ static void xwm_selection_send_targets(struct wlr_xwm_selection *selection) {
char **mime_type_ptr; char **mime_type_ptr;
wl_array_for_each(mime_type_ptr, mime_types) { wl_array_for_each(mime_type_ptr, mime_types) {
char *mime_type = *mime_type_ptr; char *mime_type = *mime_type_ptr;
targets[2+i] = xwm_get_mime_type_atom(xwm, mime_type); targets[2+i] = xwm_mime_type_to_atom(xwm, mime_type);
++i; ++i;
} }
xcb_change_property(xwm->xcb_conn, xcb_change_property(xwm->xcb_conn,
XCB_PROP_MODE_REPLACE, XCB_PROP_MODE_REPLACE,
selection->request.requestor, req->requestor,
selection->request.property, req->property,
XCB_ATOM_ATOM, XCB_ATOM_ATOM,
32, // format 32, // format
n, targets); n, targets);
xwm_selection_send_notify(selection, selection->request.property); xwm_selection_send_notify(selection->xwm, req, req->property);
}
static void xwm_selection_send_timestamp(struct wlr_xwm_selection *selection,
xcb_selection_request_event_t *req) {
xcb_change_property(selection->xwm->xcb_conn,
XCB_PROP_MODE_REPLACE,
req->requestor,
req->property,
XCB_ATOM_INTEGER,
32, // format
1, &selection->timestamp);
xwm_selection_send_notify(selection->xwm, req, req->property);
} }
static struct wlr_xwm_selection *xwm_get_selection(struct wlr_xwm *xwm, static struct wlr_xwm_selection *xwm_get_selection(struct wlr_xwm *xwm,
@ -501,134 +513,138 @@ static struct wlr_xwm_selection *xwm_get_selection(struct wlr_xwm *xwm,
} }
} }
static 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);
}
}
static void xwm_handle_selection_request(struct wlr_xwm *xwm, static void xwm_handle_selection_request(struct wlr_xwm *xwm,
xcb_generic_event_t *event) { xcb_generic_event_t *event) {
xcb_selection_request_event_t *selection_request = xcb_selection_request_event_t *req =
(xcb_selection_request_event_t *) event; (xcb_selection_request_event_t *) event;
wlr_log(L_DEBUG, "XCB_SELECTION_REQUEST (time=%u owner=%u, requestor=%u " wlr_log(L_DEBUG, "XCB_SELECTION_REQUEST (time=%u owner=%u, requestor=%u "
"selection=%u, target=%u, property=%u)", "selection=%u, target=%u, property=%u)",
selection_request->time, selection_request->owner, req->time, req->owner, req->requestor, req->selection, req->target,
selection_request->requestor, selection_request->selection, req->property);
selection_request->target, selection_request->property);
if (selection_request->selection == xwm->atoms[CLIPBOARD_MANAGER]) { if (req->selection == xwm->atoms[CLIPBOARD_MANAGER]) {
// The wlroots clipboard should already have grabbed the first target, // The wlroots clipboard should already have grabbed the first target,
// so just send selection notify now. This isn't synchronized with the // so just send selection notify now. This isn't synchronized with the
// clipboard finishing getting the data, so there's a race here. // clipboard finishing getting the data, so there's a race here.
struct wlr_xwm_selection *selection = &xwm->clipboard_selection; xwm_selection_send_notify(xwm, req, req->property);
selection->request = *selection_request;
selection->incr = 0;
selection->flush_property_on_delete = 0;
xwm_selection_send_notify(selection, selection->request.property);
return; return;
} }
struct wlr_xwm_selection *selection = struct wlr_xwm_selection *selection =
xwm_get_selection(xwm, selection_request->selection); xwm_get_selection(xwm, req->selection);
if (selection == NULL) { if (selection == NULL) {
wlr_log(L_DEBUG, "received selection request for unknown selection"); wlr_log(L_DEBUG, "received selection request for unknown selection");
return; return;
} }
if (selection->window != selection_request->owner) { if (selection->window != req->owner) {
wlr_log(L_DEBUG, "received selection request with invalid owner"); wlr_log(L_DEBUG, "received selection request with invalid owner");
return; return;
} }
selection->request = *selection_request;
selection->incr = 0;
selection->flush_property_on_delete = 0;
// No xwayland surface focused, deny access to clipboard // No xwayland surface focused, deny access to clipboard
if (xwm->focus_surface == NULL && xwm->drag_focus == NULL) { if (xwm->focus_surface == NULL && xwm->drag_focus == NULL) {
char *selection_name = xwm_get_atom_name(xwm, selection->atom); char *selection_name = xwm_get_atom_name(xwm, selection->atom);
wlr_log(L_DEBUG, "denying read access to selection %u (%s): " wlr_log(L_DEBUG, "denying read access to selection %u (%s): "
"no xwayland surface focused", selection->atom, selection_name); "no xwayland surface focused", selection->atom, selection_name);
free(selection_name); free(selection_name);
xwm_selection_send_notify(selection, XCB_ATOM_NONE); xwm_selection_send_notify(xwm, req, XCB_ATOM_NONE);
return; return;
} }
if (selection_request->target == xwm->atoms[TARGETS]) { if (req->target == xwm->atoms[TARGETS]) {
xwm_selection_send_targets(selection); xwm_selection_send_targets(selection, req);
} else if (selection_request->target == xwm->atoms[TIMESTAMP]) { } else if (req->target == xwm->atoms[TIMESTAMP]) {
xwm_selection_send_timestamp(selection); xwm_selection_send_timestamp(selection, req);
} else if (selection_request->target == xwm->atoms[UTF8_STRING]) { } else if (req->target == xwm->atoms[DELETE]) {
xwm_selection_send_data(selection, selection_request->target, xwm_selection_send_notify(selection->xwm, req, req->property);
"text/plain;charset=utf-8");
} else if (selection_request->target == xwm->atoms[TEXT]) {
xwm_selection_send_data(selection, selection_request->target,
"text/plain");
} else { } else {
char *mime_type = xwm_get_atom_name(xwm, selection_request->target); // Send data
char *mime_type = xwm_mime_type_from_atom(xwm, req->target);
if (mime_type == NULL) { if (mime_type == NULL) {
wlr_log(L_ERROR, "ignoring selection request: unknown atom"); wlr_log(L_ERROR, "ignoring selection request: unknown atom %u",
xwm_selection_send_notify(selection, XCB_ATOM_NONE); req->target);
xwm_selection_send_notify(xwm, req, XCB_ATOM_NONE);
return; return;
} }
xwm_selection_send_data(selection, selection_request->target, xwm_selection_send_data(selection, req, mime_type);
mime_type);
free(mime_type); free(mime_type);
} }
} }
static void xwm_data_source_destroy_property_reply( static void xwm_data_source_destroy_property_reply(
struct wlr_xwm_selection *selection) { struct wlr_xwm_selection_transfer *transfer) {
free(selection->property_reply); free(transfer->property_reply);
selection->property_reply = NULL; transfer->property_reply = NULL;
} }
/**
* Write the X11 selection to a Wayland client.
*/
static int xwm_data_source_write(int fd, uint32_t mask, void *data) { static int xwm_data_source_write(int fd, uint32_t mask, void *data) {
struct wlr_xwm_selection *selection = data; struct wlr_xwm_selection_transfer *transfer = data;
struct wlr_xwm *xwm = selection->xwm; struct wlr_xwm *xwm = transfer->selection->xwm;
unsigned char *property = xcb_get_property_value(selection->property_reply); char *property = xcb_get_property_value(transfer->property_reply);
int remainder = xcb_get_property_value_length(selection->property_reply) - int remainder = xcb_get_property_value_length(transfer->property_reply) -
selection->property_start; transfer->property_start;
int len = write(fd, property + selection->property_start, remainder); ssize_t len = write(fd, property + transfer->property_start, remainder);
if (len == -1) { if (len == -1) {
xwm_data_source_destroy_property_reply(selection); xwm_data_source_destroy_property_reply(transfer);
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
xwm_data_source_close_source_fd(selection); xwm_data_source_close_source_fd(transfer);
wlr_log(L_ERROR, "write error to target fd: %m"); wlr_log(L_ERROR, "write error to target fd: %m");
return 1; return 1;
} }
wlr_log(L_DEBUG, "wrote %d (chunk size %d) of %d bytes", wlr_log(L_DEBUG, "wrote %ld (chunk size %ld) of %d bytes",
selection->property_start + len, transfer->property_start + len,
len, xcb_get_property_value_length(selection->property_reply)); len, xcb_get_property_value_length(transfer->property_reply));
selection->property_start += len; transfer->property_start += len;
if (len == remainder) { if (len == remainder) {
xwm_data_source_destroy_property_reply(selection); xwm_data_source_destroy_property_reply(transfer);
xwm_data_source_remove_property_source(selection); xwm_data_source_remove_source(transfer);
if (selection->incr) { if (transfer->incr) {
xcb_delete_property(xwm->xcb_conn, selection->window, xcb_delete_property(xwm->xcb_conn, transfer->selection->window,
xwm->atoms[WL_SELECTION]); xwm->atoms[WL_SELECTION]);
} else { } else {
wlr_log(L_DEBUG, "transfer complete"); wlr_log(L_DEBUG, "transfer complete");
xwm_data_source_close_source_fd(selection); xwm_data_source_close_source_fd(transfer);
} }
} }
return 1; return 1;
} }
static void xwm_write_property(struct wlr_xwm_selection *selection, static void xwm_write_property(struct wlr_xwm_selection_transfer *transfer,
xcb_get_property_reply_t *reply) { xcb_get_property_reply_t *reply) {
selection->property_start = 0; struct wlr_xwm *xwm = transfer->selection->xwm;
selection->property_reply = reply;
xwm_data_source_write(selection->source_fd, WL_EVENT_WRITABLE, selection);
if (selection->property_reply) { transfer->property_start = 0;
transfer->property_reply = reply;
xwm_data_source_write(transfer->source_fd, WL_EVENT_WRITABLE, transfer);
if (transfer->property_reply != NULL) {
struct wl_event_loop *loop = struct wl_event_loop *loop =
wl_display_get_event_loop(selection->xwm->xwayland->wl_display); wl_display_get_event_loop(xwm->xwayland->wl_display);
selection->property_source = wl_event_loop_add_fd(loop, transfer->source = wl_event_loop_add_fd(loop,
selection->source_fd, WL_EVENT_WRITABLE, xwm_data_source_write, transfer->source_fd, WL_EVENT_WRITABLE, xwm_data_source_write,
selection); transfer);
} }
} }
@ -647,17 +663,19 @@ static void xwm_selection_get_data(struct wlr_xwm_selection *selection) {
xcb_get_property_reply_t *reply = xcb_get_property_reply_t *reply =
xcb_get_property_reply(xwm->xcb_conn, cookie, NULL); xcb_get_property_reply(xwm->xcb_conn, cookie, NULL);
if (reply == NULL) { if (reply == NULL) {
wlr_log(L_ERROR, "Cannot get selection property");
return; return;
} }
struct wlr_xwm_selection_transfer *transfer = &selection->incoming;
if (reply->type == xwm->atoms[INCR]) { if (reply->type == xwm->atoms[INCR]) {
selection->incr = 1; transfer->incr = true;
free(reply); free(reply);
} else { } else {
selection->incr = 0; transfer->incr = false;
// reply's ownership is transferred to wm, which is responsible // reply's ownership is transferred to wm, which is responsible
// for freeing it // for freeing it
xwm_write_property(selection, reply); xwm_write_property(transfer, reply);
} }
} }
@ -665,6 +683,7 @@ static void source_send(struct wlr_xwm_selection *selection,
struct wl_array *mime_types, struct wl_array *mime_types_atoms, struct wl_array *mime_types, struct wl_array *mime_types_atoms,
const char *requested_mime_type, int32_t fd) { const char *requested_mime_type, int32_t fd) {
struct wlr_xwm *xwm = selection->xwm; struct wlr_xwm *xwm = selection->xwm;
struct wlr_xwm_selection_transfer *transfer = &selection->incoming;
xcb_atom_t *atoms = mime_types_atoms->data; xcb_atom_t *atoms = mime_types_atoms->data;
bool found = false; bool found = false;
@ -681,7 +700,8 @@ static void source_send(struct wlr_xwm_selection *selection,
++i; ++i;
} }
if (!found) { if (!found) {
wlr_log(L_DEBUG, "cannot send X11 selection: unsupported MIME type"); wlr_log(L_DEBUG, "Cannot send X11 selection to Wayland: "
"unsupported MIME type");
return; return;
} }
@ -695,7 +715,7 @@ static void source_send(struct wlr_xwm_selection *selection,
xcb_flush(xwm->xcb_conn); xcb_flush(xwm->xcb_conn);
fcntl(fd, F_SETFL, O_WRONLY | O_NONBLOCK); fcntl(fd, F_SETFL, O_WRONLY | O_NONBLOCK);
selection->source_fd = fd; transfer->source_fd = fd;
} }
struct x11_data_source { struct x11_data_source {
@ -964,14 +984,14 @@ static int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
return 1; return 1;
} }
selection->incr = 0; struct wlr_xwm_selection_transfer *transfer = &selection->incoming;
transfer->incr = false;
// doing this will give a selection notify where we actually handle the sync // doing this will give a selection notify where we actually handle the sync
xcb_convert_selection(xwm->xcb_conn, selection->window, xcb_convert_selection(xwm->xcb_conn, selection->window,
selection->atom, selection->atom,
xwm->atoms[TARGETS], xwm->atoms[TARGETS],
xwm->atoms[WL_SELECTION], xwm->atoms[WL_SELECTION],
xfixes_selection_notify->timestamp); xfixes_selection_notify->timestamp);
xcb_flush(xwm->xcb_conn); xcb_flush(xwm->xcb_conn);
return 1; return 1;
@ -1080,7 +1100,7 @@ static void selection_init(struct wlr_xwm *xwm,
selection->xwm = xwm; selection->xwm = xwm;
selection->atom = atom; selection->atom = atom;
selection->window = xwm->selection_window; selection->window = xwm->selection_window;
selection->request.requestor = XCB_NONE; selection->incoming.selection = selection;
uint32_t mask = uint32_t mask =
XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER | XCB_XFIXES_SELECTION_EVENT_MASK_SET_SELECTION_OWNER |

1
xwayland/xwm.c
View file

@ -50,6 +50,7 @@ const char *atom_map[ATOM_LAST] = {
"INCR", "INCR",
"TEXT", "TEXT",
"TIMESTAMP", "TIMESTAMP",
"DELETE",
"_NET_WM_WINDOW_TYPE_UTILITY", "_NET_WM_WINDOW_TYPE_UTILITY",
"_NET_WM_WINDOW_TYPE_TOOLTIP", "_NET_WM_WINDOW_TYPE_TOOLTIP",
"_NET_WM_WINDOW_TYPE_DND", "_NET_WM_WINDOW_TYPE_DND",