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selection transfer: Support atom format 

This commit makes :send{ data={"TARGETS", "UTF8_STRING"}, format="atom"}
work correctly. This was tested with xclip -o -target TARGETS.

With this commit, it becomes possible to implement the TARGETS target.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2019-02-10 18:45:46 +01:00
parent a4bac0683e
commit fe62ad5faa
1 changed files with 44 additions and 5 deletions
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49
objects/selection_transfer.c
View File

@ -138,21 +138,60 @@ luaA_selection_transfer_send(lua_State *L)
{
size_t data_length;
const char *data;
uint8_t format = 8;
xcb_atom_t type = UTF8_STRING;
selection_transfer_t *transfer = luaA_checkudata(L, 1, &selection_transfer_class);
if (transfer->state != TRANSFER_WAIT_FOR_DATA)
luaL_error(L, "Transfer object is not ready for more data to be sent");
/* Get format and data from the table */
luaA_checktable(L, 2);
lua_pushliteral(L, "format");
lua_rawget(L, 2);
lua_pushliteral(L, "data");
lua_rawget(L, 2);
data = luaL_checklstring(L, -1, &data_length);
if (lua_isstring(L, -2)) {
const char *format_string = luaL_checkstring(L, -2);
if (A_STRNEQ(format_string, "atom"))
luaL_error(L, "Unknown format '%s'", format_string);
/* 'data' is a table with strings */
size_t len = luaA_rawlen(L, -1);
/* Get an array with atoms */
size_t atom_lengths[len];
const char *atom_strings[len];
for (size_t i = 0; i < len; i++) {
lua_rawgeti(L, -1, i+1);
atom_strings[i] = luaL_checklstring(L, -1, &atom_lengths[i]);
lua_pop(L, 1);
}
xcb_intern_atom_cookie_t cookies[len];
xcb_atom_t atoms[len];
for (size_t i = 0; i < len; i++) {
cookies[i] = xcb_intern_atom_unchecked(globalconf.connection, false,
atom_lengths[i], atom_strings[i]);
}
for (size_t i = 0; i < len; i++) {
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(globalconf.connection,
cookies[i], NULL);
atoms[i] = reply ? reply->atom : XCB_NONE;
p_delete(&reply);
}
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
transfer->requestor, transfer->property, XCB_ATOM_ATOM, 32,
len, &atoms[0]);
} else {
/* 'data' is a string with the data to transfer */
data = luaL_checklstring(L, -1, &data_length);
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
transfer->requestor, transfer->property, UTF8_STRING, 8,
data_length, data);
}
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
transfer->requestor, transfer->property, type, format, data_length, data);
selection_transfer_notify(transfer->requestor, transfer->selection,
transfer->target, transfer->property, transfer->time);
transfer_done(L, transfer);