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libghostty: Kitty clipboard write permission prompts and grants

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The `clipboard_write` effect now is similar to read: it must response
to a "reply" callback synchronously. This lets the embedder ask for write
permission, too.

We also now pass through program name and grant information from Kitty 
clipboard protocol so that embedders can use that if they want.

This is a breaking ABI change.
This commit is contained in:
Mitchell Hashimoto
2026-08-24 08:33:17 -07:00
parent 7a9bca6a6e
commit 7ae9b11138
6 changed files with 549 additions and 143 deletions
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13
example/c-vt-effects/src/main.c
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@@ -40,13 +40,17 @@ void on_title_changed(GhosttyTerminal terminal, void* userdata) {
//! [effects-title-changed]
//! [effects-clipboard-write]
GhosttyClipboardWriteResult on_clipboard_write(
void on_clipboard_write(
GhosttyTerminal terminal,
void* userdata,
const GhosttyClipboardWrite* write) {
(void)terminal;
(void)userdata;
// The write is synchronous: a real embedder would ask the user for
// permission here (unless write->granted) and the VT stream waits until
// this callback returns. The replied result is sent to the program
// (OSC 5522) through the write_pty callback.
printf(" clipboard write (location=%d, contents=%zu)\n",
(int)write->location, write->contents_len);
if (write->contents_len == 0) {
@@ -66,7 +70,12 @@ GhosttyClipboardWriteResult on_clipboard_write(
printf("\n");
}
return GHOSTTY_CLIPBOARD_WRITE_RESULT_SUCCESS;
GhosttyClipboardWriteReply reply = {
.size = sizeof(reply),
.result = GHOSTTY_CLIPBOARD_WRITE_RESULT_SUCCESS,
.remember = false,
};
write->reply(write, &reply);
}
//! [effects-clipboard-write]