85 lines
2.5 KiB
Zig
85 lines
2.5 KiB
Zig
const std = @import("std");
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const xcb = @import("xcb");
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pub fn main(init: std.process.Init) !void {
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_ = init;
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const connection = xcb.Connection.connect(null, null);
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defer connection.disconnect();
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{
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const error_code = connection.hasError();
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if (error_code != 0) {
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std.debug.print("Error: xcb_connection_has_error returned {}", .{error_code});
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return error.XcbConnection;
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}
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}
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const setup = connection.getSetup();
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const screen = setup.rootsIterator().data;
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const window = @as(xcb.Window, @enumFromInt(connection.generateId()));
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_ = connection.createWindow(
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xcb.COPY_FROM_PARENT,
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window,
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screen.root,
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0,
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0,
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640,
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360,
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1,
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.INPUT_OUTPUT,
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screen.root_visual,
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.{
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.BACK_PIXEL = true,
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},
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&[_]u32{
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screen.black_pixel,
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},
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);
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const wm_protocols_atom_cookie = connection.internAtom(true, "WM_PROTOCOLS");
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const wm_delete_window_atom_cookie = connection.internAtom(false, "WM_DELETE_WINDOW");
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const wm_protocols_atom_reply = connection.internAtomReply(wm_protocols_atom_cookie, null) orelse return error.XcbInternAtom;
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defer std.c.free(wm_protocols_atom_reply);
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const wm_protocols_atom = wm_protocols_atom_reply.atom;
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const wm_delete_window_atom_reply = connection.internAtomReply(wm_delete_window_atom_cookie, null) orelse return error.XcbInternAtom;
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defer std.c.free(wm_delete_window_atom_reply);
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const wm_delete_window_atom = wm_delete_window_atom_reply.atom;
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_ = connection.changeProperty(
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.REPLACE,
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window,
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wm_protocols_atom,
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.ATOM,
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32,
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1,
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&wm_delete_window_atom,
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);
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_ = connection.mapWindow(window);
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_ = connection.flush();
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var running = true;
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while (running) {
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if (connection.waitForEvent()) |event| {
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defer std.c.free(event);
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switch (event.response_type & ~@as(u8, 0x80)) {
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xcb.CLIENT_MESSAGE => {
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const client_message_event = @as(*xcb.ClientMessageEvent, @ptrCast(event));
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if (client_message_event.data.data32[0] == @intFromEnum(wm_delete_window_atom_reply.atom)) {
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running = false;
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}
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},
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else => {},
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}
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} else {
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std.debug.print("Error: xcb_wait_for_event returned null", .{});
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return error.XcbWaitForEvent;
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}
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}
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}
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