wlroots/xwayland/selection.c

242 lines
6.4 KiB
C
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#define _XOPEN_SOURCE 700
#include <stdlib.h>
#include <string.h>
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#include <xcb/xfixes.h>
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#include <fcntl.h>
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#include "wlr/util/log.h"
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#include "wlr/types/wlr_data_device.h"
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#include "xwm.h"
static int xwm_handle_selection_property_notify(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
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xcb_property_notify_event_t *property_notify =
(xcb_property_notify_event_t *) event;
if (property_notify->window == xwm->selection_window) {
if (property_notify->state == XCB_PROPERTY_NEW_VALUE &&
property_notify->atom == xwm->atoms[WL_SELECTION] &&
xwm->incr)
wlr_log(L_DEBUG, "TODO: get selection");
return 1;
} else if (property_notify->window == xwm->selection_request.requestor) {
if (property_notify->state == XCB_PROPERTY_DELETE &&
property_notify->atom == xwm->selection_request.property &&
xwm->incr)
wlr_log(L_DEBUG, "TODO: send selection");
return 1;
}
return 0;
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}
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static void xwm_handle_selection_request(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
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wlr_log(L_DEBUG, "TODO: SELECTION REQUEST");
return;
}
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static void xwm_get_selection_data(struct wlr_xwm *xwm) {
wlr_log(L_DEBUG, "TODO: GET SELECTION DATA");
}
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struct x11_data_source {
struct wlr_data_source base;
struct wlr_xwm *xwm;
};
static void data_source_accept(struct wlr_data_source *source, uint32_t time,
const char *mime_type) {
}
static void data_source_send(struct wlr_data_source *base,
const char *mime_type, int32_t fd) {
struct x11_data_source *source = (struct x11_data_source *)base;
struct wlr_xwm *xwm = source->xwm;
if (strcmp(mime_type, "text/plain;charset=utf-8") == 0) {
// Get data for the utf8_string target
xcb_convert_selection(xwm->xcb_conn,
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xwm->selection_window,
xwm->atoms[CLIPBOARD],
xwm->atoms[UTF8_STRING],
xwm->atoms[WL_SELECTION],
XCB_TIME_CURRENT_TIME);
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xcb_flush(xwm->xcb_conn);
fcntl(fd, F_SETFL, O_WRONLY | O_NONBLOCK);
xwm->data_source_fd = fd;
}
}
static void data_source_cancel(struct wlr_data_source *source) {
}
static void xwm_get_selection_targets(struct wlr_xwm *xwm) {
// set the wayland clipboard selection to the copied selection
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xcb_get_property_cookie_t cookie = xcb_get_property(xwm->xcb_conn,
1, // delete
xwm->selection_window,
xwm->atoms[WL_SELECTION],
XCB_GET_PROPERTY_TYPE_ANY,
0, // offset
4096 //length
);
xcb_get_property_reply_t *reply =
xcb_get_property_reply(xwm->xcb_conn, cookie, NULL);
if (reply == NULL)
return;
if (reply->type != XCB_ATOM_ATOM) {
free(reply);
return;
}
struct x11_data_source *source = calloc(1, sizeof(struct x11_data_source));
if (source == NULL) {
free(reply);
return;
}
wl_signal_init(&source->base.events.destroy);
source->base.accept = data_source_accept;
source->base.send = data_source_send;
source->base.cancel = data_source_cancel;
source->xwm = xwm;
wl_array_init(&source->base.mime_types);
xcb_atom_t *value = xcb_get_property_value(reply);
for (uint32_t i = 0; i < reply->value_len; i++) {
if (value[i] == xwm->atoms[UTF8_STRING]) {
char **p = wl_array_add(&source->base.mime_types, sizeof *p);
if (p) {
*p = strdup("text/plain;charset=utf-8");
}
}
}
wlr_seat_set_selection(xwm->xwayland->seat, &source->base,
wl_display_next_serial(xwm->xwayland->wl_display));
free(reply);
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}
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static void xwm_handle_selection_notify(struct wlr_xwm *xwm,
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xcb_generic_event_t *event) {
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xcb_selection_notify_event_t *selection_notify =
(xcb_selection_notify_event_t *) event;
if (selection_notify->property == XCB_ATOM_NONE) {
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wlr_log(L_ERROR, "convert selection failed");
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} else if (selection_notify->target == xwm->atoms[TARGETS]) {
xwm_get_selection_targets(xwm);
} else {
xwm_get_selection_data(xwm);
}
}
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static int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
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xcb_xfixes_selection_notify_event_t *xfixes_selection_notify =
(xcb_xfixes_selection_notify_event_t *) event;
if (xfixes_selection_notify->owner == XCB_WINDOW_NONE) {
if (xwm->selection_owner != xwm->selection_window) {
// A real X client selection went away, not our
// proxy selection
// TODO: Clear the wayland selection (or not)?
}
xwm->selection_owner = XCB_WINDOW_NONE;
return 1;
}
// 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 == xwm->selection_window) {
xwm->selection_timestamp = xfixes_selection_notify->timestamp;
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wlr_log(L_DEBUG, "TODO: our window");
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return 1;
}
xwm->selection_owner = xfixes_selection_notify->owner;
xwm->incr = 0;
// doing this will give a selection notify where we actually handle the sync
xcb_convert_selection(xwm->xcb_conn, xwm->selection_window,
xwm->atoms[CLIPBOARD],
xwm->atoms[TARGETS],
xwm->atoms[WL_SELECTION],
xfixes_selection_notify->timestamp);
xcb_flush(xwm->xcb_conn);
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return 1;
}
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int xwm_handle_selection_event(struct wlr_xwm *xwm,
xcb_generic_event_t *event) {
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if (!xwm->xwayland->seat) {
wlr_log(L_DEBUG, "not handling selection events:"
"no seat assigned to xwayland");
return 0;
}
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switch (event->response_type & ~0x80) {
case XCB_SELECTION_NOTIFY:
xwm_handle_selection_notify(xwm, event);
return 1;
case XCB_PROPERTY_NOTIFY:
return xwm_handle_selection_property_notify(xwm, event);
case XCB_SELECTION_REQUEST:
xwm_handle_selection_request(xwm, event);
return 1;
}
switch (event->response_type - xwm->xfixes->first_event) {
case XCB_XFIXES_SELECTION_NOTIFY:
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// an X11 window has copied something to the clipboard
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return xwm_handle_xfixes_selection_notify(xwm, event);
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}
return 0;
}
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void xwm_selection_init(struct wlr_xwm *xwm) {
uint32_t values[1], mask;
xwm->selection_request.requestor = XCB_NONE;
values[0] = 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, values);
xcb_set_selection_owner(xwm->xcb_conn,
xwm->selection_window,
xwm->atoms[CLIPBOARD_MANAGER],
XCB_TIME_CURRENT_TIME);
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, xwm->selection_window,
xwm->atoms[CLIPBOARD], mask);
}