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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111const std = @import("std");const vaxis = @import("vaxis");const Cell = vaxis.Cell;
const Event = union(enum) { key_press: vaxis.Key, winsize: vaxis.Winsize,};
pub const panic = vaxis.panic_handler;
pub fn main(init: std.process.Init) !void { const io = init.io; const alloc = init.gpa;
var buffer: [1024]u8 = undefined; var tty: vaxis.Tty = try .init(io, &buffer); const writer = tty.writer(); var vx = try vaxis.init(io, alloc, init.environ_map, .{}); defer vx.deinit(alloc, writer);
var loop: vaxis.Loop(Event) = .init(io, &tty, &vx);
try loop.start(); defer loop.stop();
try vx.enterAltScreen(writer); try vx.queryTerminal(writer, .fromSeconds(1));
const vt_opts: vaxis.widgets.Terminal.Options = .{ .winsize = .{ .rows = 24, .cols = 100, .x_pixel = 0, .y_pixel = 0, }, .scrollback_size = 0, .initial_working_directory = init.environ_map.get("HOME") orelse @panic("no $HOME"), }; const shell = init.environ_map.get("SHELL") orelse "bash"; const argv = [_][]const u8{shell}; var write_buf: [4096]u8 = undefined; var vt = try vaxis.widgets.Terminal.init( io, alloc, &argv, init.environ_map, vt_opts, &write_buf, ); defer vt.deinit(); try vt.spawn();
var redraw: bool = false; while (true) { try io.sleep(.fromMilliseconds(8), .real); // try vt events first while (try vt.tryEvent()) |event| { redraw = true; switch (event) { .bell => {}, .title_change => {}, .exited => return, .redraw => {}, .pwd_change => {}, } } while (try loop.tryEvent()) |event| { redraw = true; switch (event) { .key_press => |key| { if (key.matches('c', .{ .ctrl = true })) return; try vt.update(.{ .key_press = key }); }, .winsize => |ws| try vx.resize(alloc, writer, ws), } } if (!redraw) continue; redraw = false;
const win = vx.window(); win.hideCursor(); win.clear(); const child = win.child(.{ .x_off = 4, .y_off = 2, .width = 120, .height = 40, .border = .{ .where = .all, }, });
try vt.resize(.{ .rows = child.height, .cols = child.width, .x_pixel = 0, .y_pixel = 0, }); try vt.draw(alloc, child);
try vx.render(writer); }}
test { const builtin = @import("builtin"); if (builtin.os.tag != .linux) return error.SkipZigTest; std.testing.refAllDecls(@This());}