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xwm: attempt to guess mime in sendData for DnD

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This commit is contained in:
Vaxry 2025-10-21 19:11:11 +01:00
parent 4926332c37
commit 02b0c563f3
Signed by: vaxry
GPG key ID: 665806380871D640
1 changed files with 48 additions and 2 deletions
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50
src/xwayland/XWM.cpp
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@ -1486,8 +1486,54 @@ bool SXSelection::sendData(xcb_selection_request_event_t* e, std::string mime) {
}
if (std::ranges::find(MIMES, mime) == MIMES.end()) {
Debug::log(ERR, "[xwm] X client asked for unknown MIME '{}', falling back to '{}'", mime, *MIMES.begin());
mime = *MIMES.begin();
// try to guess mime, don't just blindly send random-ass shit that the app will have no fucking
// clue what to do with
Debug::log(ERR, "[xwm] X client asked for MIME '{}' that this selection doesn't support, guessing.", mime);
auto needle = mime;
auto selectedMime = *MIMES.begin();
if (mime.contains('/'))
needle = mime.substr(0, mime.find('/'));
Debug::log(TRACE, "[xwm] X MIME needle '{}'", needle);
if (Debug::m_trace) {
std::string mimeList = "";
for (const auto& m : MIMES) {
mimeList += "'" + m + "', ";
}
if (!MIMES.empty())
mimeList = mimeList.substr(0, mimeList.size() - 2);
Debug::log(TRACE, "[xwm] X MIME supported: {}", mimeList);
}
bool found = false;
for (const auto& m : MIMES) {
if (m.starts_with(needle)) {
selectedMime = m;
Debug::log(TRACE, "[xwm] X MIME needle found type '{}'", m);
found = true;
break;
}
}
if (!found) {
for (const auto& m : MIMES) {
if (m.contains(needle)) {
selectedMime = m;
Debug::log(TRACE, "[xwm] X MIME needle found type '{}'", m);
found = true;
break;
}
}
}
Debug::log(ERR, "[xwm] Guessed mime: '{}'. Hopefully we're right enough.", selectedMime);
mime = selectedMime;
}
auto transfer = makeUnique<SXTransfer>(*this);