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libghostty: add option to set default cursor blink 

Adds an option to `libghostty-vt` to configure whether the default
cursor displayed when an app sends a DECSCUSR reset sequence should
blink.
pull/12900/head
Riccardo Mazzarini 2026-06-02 18:03:45 +02:00
parent 2444e4d557
commit 66950a4a53
No known key found for this signature in database
GPG Key ID: 38165222613796F5
3 changed files with 23 additions and 1 deletions
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10
include/ghostty/vt/terminal.h
View File

@ -637,6 +637,16 @@ typedef enum GHOSTTY_ENUM_TYPED {
* Input type: GhosttyTerminalCursorStyle*
*/
GHOSTTY_TERMINAL_OPT_DEFAULT_CURSOR_STYLE = 22,
/**
* Set whether the default cursor should blink when reset by DECSCUSR
* (CSI 0 q).
*
* A NULL value pointer resets to the built-in default of not blinking.
*
* Input type: bool*
*/
GHOSTTY_TERMINAL_OPT_DEFAULT_CURSOR_BLINK = 23,
GHOSTTY_TERMINAL_OPT_MAX_VALUE = GHOSTTY_ENUM_MAX_VALUE,
} GhosttyTerminalOption;

9
src/terminal/c/terminal.zig
View File

@ -328,6 +328,7 @@ pub const Option = enum(c_int) {
apc_max_bytes_kitty = 20,
selection = 21,
default_cursor_style = 22,
default_cursor_blink = 23,
/// Input type expected for setting the option.
pub fn InType(comptime self: Option) type {
@ -352,6 +353,7 @@ pub const Option = enum(c_int) {
.apc_max_bytes, .apc_max_bytes_kitty => ?*const usize,
.selection => ?*const selection_c.CSelection,
.default_cursor_style => ?*const TerminalCursorStyle,
.default_cursor_blink => ?*const bool,
};
}
};
@ -474,6 +476,13 @@ fn setTyped(
wrapper.terminal.screens.active.cursor.cursor_style = style;
}
},
.default_cursor_blink => {
const blink = if (value) |ptr| ptr.* else false;
wrapper.stream.handler.default_cursor_blink = blink;
if (wrapper.stream.handler.default_cursor) {
wrapper.terminal.modes.set(.cursor_blinking, blink);
}
},
}
return .success;
}

5
src/terminal/stream_terminal.zig
View File

@ -46,6 +46,7 @@ pub const Handler = struct {
/// Default cursor style used by DECSCUSR reset (CSI 0 q).
default_cursor: bool = true,
default_cursor_style: Screen.CursorStyle = .block,
default_cursor_blink: bool = false,
pub const Effects = struct {
/// Called when the terminal needs to write data back to the pty,
@ -159,7 +160,8 @@ pub const Handler = struct {
self.default_cursor = false;
const blink = switch (value) {
.default, .steady_block, .steady_bar, .steady_underline => false,
.default => self.default_cursor_blink,
.steady_block, .steady_bar, .steady_underline => false,
.blinking_block, .blinking_bar, .blinking_underline => true,
};
const style: Screen.CursorStyle = switch (value) {
@ -241,6 +243,7 @@ pub const Handler = struct {
.full_reset => {
self.terminal.fullReset();
self.default_cursor = true;
self.terminal.modes.set(.cursor_blinking, self.default_cursor_blink);
self.terminal.screens.active.cursor.cursor_style = self.default_cursor_style;
},
.start_hyperlink => try self.terminal.screens.active.startHyperlink(value.uri, value.id),