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xwayland: use a separate window for drag'n'drop

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master
emersion 7 years ago
parent d5f46f4db4
commit cadfccf1fd
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GPG Key ID: 0FDE7BE0E88F5E48
2 changed files with 85 additions and 46 deletions
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2
include/xwayland/xwm.h
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@ -115,6 +115,8 @@ struct wlr_xwm {
xcb_window_t selection_window;
struct wlr_xwm_selection clipboard_selection;
struct wlr_xwm_selection primary_selection;
xcb_window_t dnd_window;
struct wlr_xwm_selection dnd_selection;
struct wlr_xwayland_surface *focus_surface;

127
xwayland/selection.c
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@ -50,6 +50,14 @@ static void xwm_selection_send_notify(struct wlr_xwm_selection *selection,
.property = property,
};
wlr_log(L_DEBUG, "SendEvent destination=%d SelectionNotify(31) time=%d "
"requestor=%d selection=%d target=%d property=%d",
selection->request.requestor,
selection->request.time,
selection->request.requestor,
selection->request.selection,
selection->request.target,
property);
xcb_send_event(selection->xwm->xcb_conn,
0, // propagate
selection->request.requestor,
@ -188,7 +196,7 @@ static void xwm_selection_source_send(struct wlr_xwm_selection *selection,
struct wlr_data_source *source =
selection->xwm->seat->selection_source;
if (source != NULL) {
source->send(source, mime_type, fd);
wlr_data_source_send(source, mime_type, fd);
return;
}
} else if (selection == &selection->xwm->primary_selection) {
@ -202,7 +210,7 @@ static void xwm_selection_source_send(struct wlr_xwm_selection *selection,
struct wlr_data_source *source =
selection->xwm->seat->drag_source;
if (source != NULL) {
source->send(source, mime_type, fd);
wlr_data_source_send(source, mime_type, fd);
return;
}
}
@ -282,6 +290,8 @@ static void xwm_selection_send_data(struct wlr_xwm_selection *selection,
selection->source_fd, WL_EVENT_READABLE, xwm_data_source_read,
selection);
wlr_log(L_DEBUG, "Sending Wayland selection to Xwayland window with "
"MIME type %s", mime_type);
xwm_selection_source_send(selection, mime_type, p[1]);
close(p[1]);
}
@ -345,7 +355,7 @@ static void xwm_dnd_send_enter(struct wlr_xwm *xwm) {
struct wl_array *mime_types = &drag->source->mime_types;
xcb_client_message_data_t data = { 0 };
data.data32[0] = xwm->dnd_selection.window;
data.data32[0] = xwm->dnd_window;
data.data32[1] = XDND_VERSION << 24;
// If we have 3 MIME types or less, we can send them directly in the
@ -375,7 +385,7 @@ static void xwm_dnd_send_enter(struct wlr_xwm *xwm) {
xcb_change_property(xwm->xcb_conn,
XCB_PROP_MODE_REPLACE,
xwm->dnd_selection.window,
xwm->dnd_window,
xwm->atoms[DND_TYPE_LIST],
XCB_ATOM_ATOM,
32, // format
@ -391,7 +401,7 @@ static void xwm_dnd_send_position(struct wlr_xwm *xwm, uint32_t time, int16_t x,
assert(drag != NULL);
xcb_client_message_data_t data = { 0 };
data.data32[0] = xwm->dnd_selection.window;
data.data32[0] = xwm->dnd_window;
data.data32[2] = (x << 16) | y;
data.data32[3] = time;
data.data32[4] =
@ -407,7 +417,7 @@ static void xwm_dnd_send_drop(struct wlr_xwm *xwm, uint32_t time) {
assert(dest != NULL);
xcb_client_message_data_t data = { 0 };
data.data32[0] = xwm->dnd_selection.window;
data.data32[0] = xwm->dnd_window;
data.data32[2] = time;
xwm_dnd_send_event(xwm, xwm->atoms[DND_DROP], &data);
@ -420,7 +430,7 @@ static void xwm_dnd_send_leave(struct wlr_xwm *xwm) {
assert(dest != NULL);
xcb_client_message_data_t data = { 0 };
data.data32[0] = xwm->dnd_selection.window;
data.data32[0] = xwm->dnd_window;
xwm_dnd_send_event(xwm, xwm->atoms[DND_LEAVE], &data);
}
@ -432,7 +442,7 @@ static void xwm_dnd_send_leave(struct wlr_xwm *xwm) {
assert(dest != NULL);
xcb_client_message_data_t data = { 0 };
data.data32[0] = xwm->dnd_selection.window;
data.data32[0] = xwm->dnd_window;
data.data32[1] = drag->source->accepted;
if (drag->source->accepted) {
@ -496,8 +506,11 @@ static void xwm_handle_selection_request(struct wlr_xwm *xwm,
xcb_selection_request_event_t *selection_request =
(xcb_selection_request_event_t *) event;
wlr_log(L_DEBUG, "XCB_SELECTION_REQUEST (selection=%u, target=%u)",
selection_request->selection, selection_request->target);
wlr_log(L_DEBUG, "XCB_SELECTION_REQUEST (time=%u owner=%u, requestor=%u "
"selection=%u, target=%u, property=%u)",
selection_request->time, selection_request->owner,
selection_request->requestor, selection_request->selection,
selection_request->target, selection_request->property);
if (selection_request->selection == xwm->atoms[CLIPBOARD_MANAGER]) {
// The wlroots clipboard should already have grabbed the first target,
@ -514,7 +527,12 @@ static void xwm_handle_selection_request(struct wlr_xwm *xwm,
struct wlr_xwm_selection *selection =
xwm_get_selection(xwm, selection_request->selection);
if (selection == NULL) {
xwm_selection_send_notify(selection, XCB_ATOM_NONE);
wlr_log(L_DEBUG, "received selection request for unknown selection");
return;
}
if (selection->window != selection_request->owner) {
wlr_log(L_DEBUG, "received selection request with invalid owner");
return;
}
@ -588,8 +606,7 @@ static int xwm_data_source_write(int fd, uint32_t mask, void *data) {
xwm_data_source_remove_property_source(selection);
if (selection->incr) {
xcb_delete_property(xwm->xcb_conn,
selection->window,
xcb_delete_property(xwm->xcb_conn, selection->window,
xwm->atoms[WL_SELECTION]);
} else {
wlr_log(L_DEBUG, "transfer complete");
@ -687,27 +704,37 @@ struct x11_data_source {
struct wl_array mime_types_atoms;
};
static void data_source_accept(struct wlr_data_source *base, uint32_t time,
const char *mime_type) {
// No-op
static const struct wlr_data_source_impl data_source_impl;
static struct x11_data_source *data_source_from_wlr_data_source(
struct wlr_data_source *wlr_source) {
assert(wlr_source->impl == &data_source_impl);
return (struct x11_data_source *)wlr_source;
}
static void data_source_send(struct wlr_data_source *base,
static void data_source_send(struct wlr_data_source *wlr_source,
const char *mime_type, int32_t fd) {
struct x11_data_source *source = (struct x11_data_source *)base;
struct x11_data_source *source =
data_source_from_wlr_data_source(wlr_source);
struct wlr_xwm_selection *selection = source->selection;
source_send(selection, &base->mime_types, &source->mime_types_atoms,
source_send(selection, &wlr_source->mime_types, &source->mime_types_atoms,
mime_type, fd);
}
static void data_source_cancel(struct wlr_data_source *base) {
struct x11_data_source *source = (struct x11_data_source *)base;
static void data_source_cancel(struct wlr_data_source *wlr_source) {
struct x11_data_source *source =
data_source_from_wlr_data_source(wlr_source);
wlr_data_source_finish(&source->base);
wl_array_release(&source->mime_types_atoms);
free(source);
}
static const struct wlr_data_source_impl data_source_impl = {
.send = data_source_send,
.cancel = data_source_cancel,
};
struct x11_primary_selection_source {
struct wlr_primary_selection_source base;
struct wlr_xwm_selection *selection;
@ -820,10 +847,7 @@ static void xwm_selection_get_targets(struct wlr_xwm_selection *selection) {
if (source == NULL) {
return;
}
wlr_data_source_init(&source->base);
source->base.accept = data_source_accept;
source->base.send = data_source_send;
source->base.cancel = data_source_cancel;
wlr_data_source_init(&source->base, &data_source_impl);
source->selection = selection;
wl_array_init(&source->mime_types_atoms);
@ -834,7 +858,7 @@ static void xwm_selection_get_targets(struct wlr_xwm_selection *selection) {
wlr_seat_set_selection(xwm->seat, &source->base,
wl_display_next_serial(xwm->xwayland->wl_display));
} else {
source->base.cancel(&source->base);
wlr_data_source_cancel(&source->base);
}
} else if (selection == &xwm->primary_selection) {
struct x11_primary_selection_source *source =
@ -1005,12 +1029,9 @@ int xwm_handle_selection_client_message(struct wlr_xwm *xwm,
struct wlr_drag *drag = xwm->drag;
assert(drag != NULL);
drag->source->accepted = accepted;
drag->source->current_dnd_action = action;
if (drag->source->dnd_action) {
drag->source->dnd_action(drag->source, action);
}
drag->source->accepted = accepted;
wlr_data_source_dnd_action(drag->source, action);
wlr_log(L_DEBUG, "DND_STATUS window=%d accepted=%d action=%d",
target_window, accepted, action);
@ -1025,6 +1046,8 @@ int xwm_handle_selection_client_message(struct wlr_xwm *xwm,
return 1;
}
struct wlr_data_source *source = xwm->seat->drag_source;
xcb_client_message_data_t *data = &ev->data;
xcb_window_t target_window = data->data32[0];
bool performed = data->data32[1] & 1;
@ -1041,10 +1064,7 @@ int xwm_handle_selection_client_message(struct wlr_xwm *xwm,
data_device_manager_dnd_action_from_atom(xwm, action_atom);
if (performed) {
struct wlr_data_source *source = xwm->seat->drag_source;
if (source->dnd_finish) {
source->dnd_finish(source);
}
wlr_data_source_dnd_finish(source);
}
wlr_log(L_DEBUG, "DND_FINISH window=%d performed=%d action=%d",
@ -1072,7 +1092,9 @@ static void selection_init(struct wlr_xwm *xwm,
void xwm_selection_init(struct wlr_xwm *xwm) {
// Clipboard and primary selection
uint32_t selection_values[] = { XCB_EVENT_MASK_PROPERTY_CHANGE };
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,
@ -1094,15 +1116,29 @@ void xwm_selection_init(struct wlr_xwm *xwm) {
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->selection_window,
xwm->dnd_window,
xwm->atoms[DND_AWARE],
XCB_ATOM_ATOM,
32,
1,
&version);
32, // format
1, &version);
selection_init(xwm, &xwm->dnd_selection, xwm->atoms[DND_SELECTION]);
}
@ -1114,9 +1150,12 @@ void xwm_selection_finish(struct wlr_xwm *xwm) {
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 &&
xwm->seat->selection_source->cancel == data_source_cancel) {
xwm->seat->selection_source->impl == &data_source_impl) {
wlr_seat_set_selection(xwm->seat, NULL,
wl_display_next_serial(xwm->xwayland->wl_display));
}
@ -1153,7 +1192,7 @@ static void seat_handle_selection(struct wl_listener *listener,
wl_container_of(listener, xwm, seat_selection);
struct wlr_data_source *source = seat->selection_source;
if (source != NULL && source->send == data_source_send) {
if (source != NULL && source->impl == &data_source_impl) {
return;
}
@ -1195,10 +1234,8 @@ static void seat_handle_drag_focus(struct wl_listener *listener, void *data) {
}
if (xwm->drag_focus != NULL) {
if (drag->source->dnd_action) {
drag->source->dnd_action(drag->source,
wlr_data_source_dnd_action(drag->source,
WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE);
}
xwm_dnd_send_leave(xwm);
}

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