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vaxis: add functions to query the terminal and enable features in two steps

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This allows better integration with applications that are using a custom
main loop.
This commit is contained in:
CJ van den Berg 2024-05-20 21:53:18 +02:00 committed by Tim Culverhouse
parent fff034d20a
commit 8871ca2aef
1 changed files with 18 additions and 2 deletions
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20
src/Vaxis.zig
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@ -167,6 +167,18 @@ pub fn exitAltScreen(self: *Vaxis) !void {
/// capabilities will be delivered to the client and possibly intercepted by
/// Vaxis to enable features
pub fn queryTerminal(self: *Vaxis) !void {
try self.queryTerminalSend();
// 1 second timeout
std.Thread.Futex.timedWait(&self.query_futex, 0, 1 * std.time.ns_per_s) catch {};
try self.enableDetectedFeatures();
}
/// write queries to the terminal to determine capabilities. This function
/// is only for use with a custom main loop. Call Vaxis.queryTerminal() if
/// you are using Loop.run()
pub fn queryTerminalSend(self: *Vaxis) !void {
var tty = self.tty orelse return;
// TODO: re-enable this
@ -197,9 +209,13 @@ pub fn queryTerminal(self: *Vaxis) !void {
_ = try tty.write(ctlseqs.primary_device_attrs);
try tty.flush();
}
// 1 second timeout
std.Thread.Futex.timedWait(&self.query_futex, 0, 1 * std.time.ns_per_s) catch {};
/// Enable features detected by responses to queryTerminal. This function
/// is only for use with a custom main loop. Call Vaxis.queryTerminal() if
/// you are using Loop.run()
pub fn enableDetectedFeatures(self: *Vaxis) !void {
var tty = self.tty orelse return;
// Apply any environment variables
if (std.posix.getenv("ASCIINEMA_REC")) |_|