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terminal: implement mode 1047 (alternate screen)

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Implement handling of mode 1047, which enters the alternate screen. This
is not used often, typically applications will favor 1049 (enter alt
screen, save cursor, clear alt screen).
This commit is contained in:
Tim Culverhouse
2023-12-05 10:34:25 -06:00
parent f12371ec1c
commit c9f2f806ec
2 changed files with 16 additions and 0 deletions
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1
src/terminal/modes.zig
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@ -209,6 +209,7 @@ const entries: []const ModeEntry = &.{
.{ .name = "alt_esc_prefix", .value = 1036, .default = true },
.{ .name = "alt_sends_escape", .value = 1039 },
.{ .name = "reverse_wrap_extended", .value = 1045 },
.{ .name = "alt_screen", .value = 1047 },
.{ .name = "alt_screen_save_cursor_clear_enter", .value = 1049 },
.{ .name = "bracketed_paste", .value = 2004 },
.{ .name = "synchronized_output", .value = 2026 },

15
src/termio/Exec.zig
View File

@ -1772,6 +1772,21 @@ const StreamHandler = struct {
self.terminal.scrolling_region.right = self.terminal.cols - 1;
},
.alt_screen => {
const opts: terminal.Terminal.AlternateScreenOptions = .{
.cursor_save = false,
.clear_on_enter = false,
};
if (enabled)
self.terminal.alternateScreen(self.alloc, opts)
else
self.terminal.primaryScreen(self.alloc, opts);
// Schedule a render since we changed screens
try self.queueRender();
},
.alt_screen_save_cursor_clear_enter => {
const opts: terminal.Terminal.AlternateScreenOptions = .{
.cursor_save = true,