293 lines
7.6 KiB
Perl
293 lines
7.6 KiB
Perl
package i3test::XTEST;
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# vim:ts=4:sw=4:expandtab
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use strict;
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use warnings;
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use v5.10;
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use Test::More;
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use i3test::Util qw(get_socket_path);
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use lib qw(@abs_top_srcdir@/AnyEvent-I3/blib/lib);
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use AnyEvent::I3;
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use ExtUtils::PkgConfig;
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use Exporter ();
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our @EXPORT = qw(
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inlinec_connect
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set_xkb_group
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xtest_key_press
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xtest_key_release
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xtest_button_press
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xtest_button_release
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listen_for_binding
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start_binding_capture
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binding_events
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);
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=encoding utf-8
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=head1 NAME
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i3test::XTEST - Inline::C wrappers for xcb-xtest and xcb-xkb
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=cut
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# We need to use libxcb-xkb because xdotool cannot trigger ISO_Next_Group
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# anymore: it contains code to set the XKB group to 1 and then restore the
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# previous group, effectively rendering any keys that switch groups
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# ineffective.
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my %sn_config;
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BEGIN {
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%sn_config = ExtUtils::PkgConfig->find('xcb-xkb xcb-xtest');
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}
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use Inline C => Config => LIBS => $sn_config{libs}, CCFLAGS => $sn_config{cflags};
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use Inline C => <<'END_OF_C_CODE';
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <xcb/xcb.h>
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#include <xcb/xkb.h>
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#include <xcb/xtest.h>
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static xcb_connection_t *conn = NULL;
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bool inlinec_connect() {
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int screen;
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if ((conn = xcb_connect(NULL, &screen)) == NULL ||
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xcb_connection_has_error(conn)) {
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if (conn != NULL) {
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xcb_disconnect(conn);
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}
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fprintf(stderr, "Could not connect to X11\n");
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return false;
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}
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if (!xcb_get_extension_data(conn, &xcb_xkb_id)->present) {
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fprintf(stderr, "XKB not present\n");
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return false;
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}
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if (!xcb_get_extension_data(conn, &xcb_test_id)->present) {
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fprintf(stderr, "XTEST not present\n");
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return false;
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}
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xcb_generic_error_t *err = NULL;
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xcb_xkb_use_extension_reply_t *usereply;
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usereply = xcb_xkb_use_extension_reply(
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conn, xcb_xkb_use_extension(conn, XCB_XKB_MAJOR_VERSION, XCB_XKB_MINOR_VERSION), &err);
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if (err != NULL || usereply == NULL) {
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fprintf(stderr, "xcb_xkb_use_extension() failed\n");
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free(err);
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return false;
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}
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free(usereply);
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return true;
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}
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// NOTE: while |group| should be a uint8_t, Inline::C will not define the
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// function unless we use an int.
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bool set_xkb_group(int group) {
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xcb_generic_error_t *err = NULL;
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// Needs libxcb ≥ 1.11 so that we have the following bug fix:
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// https://cgit.freedesktop.org/xcb/proto/commit/src/xkb.xml?id=8d7ee5b6ba4cf343f7df70372a3e1f85b82aeed7
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xcb_void_cookie_t cookie = xcb_xkb_latch_lock_state_checked(
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conn,
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XCB_XKB_ID_USE_CORE_KBD, /* deviceSpec */
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0, /* affectModLocks */
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0, /* modLocks */
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1, /* lockGroup */
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group, /* groupLock */
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0, /* affectModLatches */
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0, /* latchGroup */
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0); /* groupLatch */
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if ((err = xcb_request_check(conn, cookie)) != NULL) {
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fprintf(stderr, "X error code %d\n", err->error_code);
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free(err);
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return false;
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}
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return true;
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}
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bool xtest_input(int type, int detail, int x, int y) {
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xcb_generic_error_t *err;
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xcb_void_cookie_t cookie;
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cookie = xcb_test_fake_input_checked(
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conn,
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type, /* type */
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detail, /* detail */
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XCB_CURRENT_TIME, /* time */
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XCB_NONE, /* root */
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x, /* rootX */
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y, /* rootY */
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XCB_NONE); /* deviceid */
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if ((err = xcb_request_check(conn, cookie)) != NULL) {
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fprintf(stderr, "X error code %d\n", err->error_code);
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free(err);
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return false;
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}
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return true;
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}
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bool xtest_key(int type, int detail) {
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return xtest_input(type, detail, 0, 0);
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}
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bool xtest_key_press(int detail) {
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return xtest_key(XCB_KEY_PRESS, detail);
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}
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bool xtest_key_release(int detail) {
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return xtest_key(XCB_KEY_RELEASE, detail);
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}
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bool xtest_button_press(int button, int x, int y) {
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return xtest_input(XCB_BUTTON_PRESS, button, x, y);
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}
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bool xtest_button_release(int button, int x, int y) {
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return xtest_input(XCB_BUTTON_RELEASE, button, x, y);
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}
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END_OF_C_CODE
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sub import {
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my ($class, %args) = @_;
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ok(inlinec_connect(), 'Connect to X11, verify XKB and XTEST are present (via Inline::C)');
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goto \&Exporter::import;
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}
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=head1 EXPORT
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=cut
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my $i3;
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our @binding_events;
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=head2 start_binding_capture()
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Captures all binding events sent by i3 in the C<@binding_events> symbol, so
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that you can verify the correct number of binding events was generated.
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my $pid = launch_with_config($config);
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start_binding_capture;
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# …
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sync_with_i3;
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is(scalar @i3test::XTEST::binding_events, 2, 'Received exactly 2 binding events');
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=cut
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sub start_binding_capture {
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# Store a copy of each binding event so that we can count the expected
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# events in test cases.
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$i3 = i3(get_socket_path());
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$i3->connect()->recv;
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$i3->subscribe({
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binding => sub {
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my ($event) = @_;
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@binding_events = (@binding_events, $event);
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},
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})->recv;
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}
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=head2 listen_for_binding($cb)
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Helper function to evaluate whether sending KeyPress/KeyRelease events via
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XTEST triggers an i3 key binding or not (with a timeout of 0.5s). Expects key
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bindings to be configured in the form “bindsym <binding> nop <binding>”, e.g.
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“bindsym Mod4+Return nop Mod4+Return”.
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is(listen_for_binding(
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sub {
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xtest_key_press(133); # Super_L
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xtest_key_press(36); # Return
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xtest_key_release(36); # Return
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xtest_key_release(133); # Super_L
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},
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),
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'Mod4+Return',
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'triggered the "Mod4+Return" keybinding');
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=cut
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sub listen_for_binding {
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my ($cb) = @_;
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my $triggered = AnyEvent->condvar;
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my $i3 = i3(get_socket_path());
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$i3->connect()->recv;
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$i3->subscribe({
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binding => sub {
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my ($event) = @_;
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return unless $event->{change} eq 'run';
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# We look at the command (which is “nop <binding>”) because that is
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# easier than re-assembling the string representation of
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# $event->{binding}.
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$triggered->send($event->{binding}->{command});
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},
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})->recv;
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my $t;
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$t = AnyEvent->timer(
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after => 0.5,
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cb => sub {
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$triggered->send('timeout');
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}
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);
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$cb->();
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my $recv = $triggered->recv;
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$recv =~ s/^nop //g;
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return $recv;
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}
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=head2 set_xkb_group($group)
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Changes the current XKB group from the default of 1 to C<$group>, which must be
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one of 1, 2, 3, 4.
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Returns false when there was an X11 error changing the group, true otherwise.
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=head2 xtest_key_press($detail)
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Sends a KeyPress event via XTEST, with the specified C<$detail>, i.e. key code.
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Use C<xev(1)> to find key codes.
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Returns false when there was an X11 error, true otherwise.
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=head2 xtest_key_release($detail)
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Sends a KeyRelease event via XTEST, with the specified C<$detail>, i.e. key code.
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Use C<xev(1)> to find key codes.
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Returns false when there was an X11 error, true otherwise.
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=head2 xtest_button_press($button, $x, $y)
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Sends a ButtonPress event via XTEST, with the specified C<$button>.
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Returns false when there was an X11 error, true otherwise.
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=head2 xtest_button_release($button, $x, $y)
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Sends a ButtonRelease event via XTEST, with the specified C<$button>.
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Returns false when there was an X11 error, true otherwise.
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=head1 AUTHOR
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Michael Stapelberg <michael@i3wm.org>
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=cut
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1
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