zig/libvaxis
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vaxis: adjust alt screen logic

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Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
This commit is contained in:
Tim Culverhouse 2024-01-19 10:59:47 -06:00
parent 8c8caf4769
commit 02bdcd7625
1 changed files with 5 additions and 2 deletions
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7
src/vaxis.zig
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@ -106,7 +106,10 @@ pub fn Vaxis(comptime T: type) type {
}; };
} }
/// enter the alternate screen. The alternate screen will automatically
/// be exited if calling deinit while in the alt screen
pub fn enterAltScreen(self: *Self) !void { pub fn enterAltScreen(self: *Self) !void {
if (self.alt_screen) return;
if (self.tty) |_| { if (self.tty) |_| {
var tty = &self.tty.?; var tty = &self.tty.?;
_ = try tty.write(ctlseqs.smcup); _ = try tty.write(ctlseqs.smcup);
@ -114,10 +117,10 @@ pub fn Vaxis(comptime T: type) type {
} }
} }
/// exit the alternate screen
pub fn exitaltScreen(self: *Self) !void { pub fn exitaltScreen(self: *Self) !void {
if (!self.alt_screen) return;
if (self.tty) |_| { if (self.tty) |_| {
if (!self.alt_screen) return;
var tty = &self.tty.?; var tty = &self.tty.?;
_ = try tty.write(ctlseqs.rmcup); _ = try tty.write(ctlseqs.rmcup);
self.alt_screen = false; self.alt_screen = false;