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terminal: implement DECRQM (request mode)

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This commit is contained in:
Mitchell Hashimoto
2023-08-28 08:50:11 -07:00
parent cbfa22555e
commit 3b9d5d27ad
2 changed files with 50 additions and 0 deletions
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29
src/terminal/stream.zig
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@ -569,6 +569,35 @@ pub fn Stream(comptime Handler: type) type {
),
},
// DECRQM - Request Mode
'p' => switch (action.intermediates.len) {
2 => decrqm: {
if (action.intermediates[0] != '?' and
action.intermediates[1] != '$')
{
log.warn(
"ignoring unimplemented CSI p with intermediates: {s}",
.{action.intermediates},
);
break :decrqm;
}
if (action.params.len != 1) {
log.warn("invalid DECRQM command: {}", .{action});
break :decrqm;
}
if (@hasDecl(T, "requestMode")) {
try self.handler.requestMode(action.params[0]);
} else log.warn("unimplemented DECRQM callback: {}", .{action});
},
else => log.warn(
"ignoring unimplemented CSI p with intermediates: {s}",
.{action.intermediates},
),
},
// DECSCUSR - Select Cursor Style
// TODO: test
'q' => if (@hasDecl(T, "setCursorStyle")) try self.handler.setCursorStyle(

21
src/termio/Exec.zig
View File

@ -1267,6 +1267,27 @@ const StreamHandler = struct {
}
}
pub fn requestMode(self: *StreamHandler, mode_raw: u16) !void {
// Get the mode value and respond.
const code: u8 = code: {
if (!terminal.modes.hasSupport(mode_raw)) break :code 0;
if (self.terminal.modes.get(@enumFromInt(mode_raw))) break :code 1;
break :code 2;
};
var msg: termio.Message = .{ .write_small = .{} };
const resp = try std.fmt.bufPrint(
&msg.write_small.data,
"\x1B[?{};{}$y",
.{
mode_raw,
code,
},
);
msg.write_small.len = @intCast(resp.len);
self.messageWriter(msg);
}
pub fn saveMode(self: *StreamHandler, mode: terminal.Mode) !void {
// log.debug("save mode={}", .{mode});
self.terminal.modes.save(mode);