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Code Releases Activity

listen for XKB events instead of the MappingNotify event (Thanks Ran)

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This commit is contained in:
Michael Stapelberg 2014-01-18 19:40:11 +01:00
parent 7eb43aeabd
commit 1b89709ae7
2 changed files with 79 additions and 10 deletions
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4
Makefile
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@ -11,8 +11,8 @@ CFLAGS += -std=c99
CFLAGS += -pipe
CFLAGS += -Wall
CPPFLAGS += -D_GNU_SOURCE
CFLAGS += $(shell pkg-config --cflags cairo xcb-dpms xcb-xinerama xcb-atom xkbcommon xkbcommon-x11)
LIBS += $(shell pkg-config --libs cairo xcb-dpms xcb-xinerama xcb-atom xcb-image xkbcommon xkbcommon-x11)
CFLAGS += $(shell pkg-config --cflags cairo xcb-dpms xcb-xinerama xcb-atom xcb-image xcb-xkb xkbcommon xkbcommon-x11)
LIBS += $(shell pkg-config --libs cairo xcb-dpms xcb-xinerama xcb-atom xcb-image xcb-xkb xkbcommon xkbcommon-x11)
LIBS += -lpam
LIBS += -lev
LIBS += -lm

85
i3lock.c
View file

@ -13,6 +13,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <xcb/xcb.h>
#include <xcb/xkb.h>
#include <xcb/dpms.h>
#include <err.h>
#include <assert.h>
@ -402,11 +403,54 @@ static void handle_visibility_notify(xcb_connection_t *conn,
/*
* Called when the keyboard mapping changes. We update our symbols.
*
* We ignore errors — if the new keymap cannot be loaded it’s better if the
* screen stays locked and the user intervenes by using killall i3lock.
*
*/
static void handle_mapping_notify(xcb_mapping_notify_event_t *event) {
/* We ignore errors — if the new keymap cannot be loaded it’s better if the
* screen stays locked and the user intervenes by using killall i3lock. */
(void)load_keymap();
static void process_xkb_event(xcb_generic_event_t *gevent) {
union xkb_event {
struct {
uint8_t response_type;
uint8_t xkbType;
uint16_t sequence;
xcb_timestamp_t time;
uint8_t deviceID;
} any;
xcb_xkb_new_keyboard_notify_event_t new_keyboard_notify;
xcb_xkb_map_notify_event_t map_notify;
xcb_xkb_state_notify_event_t state_notify;
} *event = (union xkb_event*)gevent;
DEBUG("process_xkb_event for device %d\n", event->any.deviceID);
if (event->any.deviceID != xkb_x11_get_core_keyboard_device_id(conn))
return;
/*
* XkbNewKkdNotify and XkbMapNotify together capture all sorts of keymap
* updates (e.g. xmodmap, xkbcomp, setxkbmap), with minimal redundent
* recompilations.
*/
switch (event->any.xkbType) {
case XCB_XKB_NEW_KEYBOARD_NOTIFY:
if (event->new_keyboard_notify.changed & XCB_XKB_NKN_DETAIL_KEYCODES)
(void)load_keymap();
break;
case XCB_XKB_MAP_NOTIFY:
(void)load_keymap();
break;
case XCB_XKB_STATE_NOTIFY:
xkb_state_update_mask(xkb_state,
event->state_notify.baseMods,
event->state_notify.latchedMods,
event->state_notify.lockedMods,
event->state_notify.baseGroup,
event->state_notify.latchedGroup,
event->state_notify.lockedGroup);
break;
}
}
/*
@ -512,6 +556,7 @@ static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
/* Strip off the highest bit (set if the event is generated) */
int type = (event->response_type & 0x7F);
switch (type) {
case XCB_KEY_PRESS:
handle_key_press((xcb_key_press_event_t*)event);
@ -546,13 +591,13 @@ static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
}
break;
case XCB_MAPPING_NOTIFY:
handle_mapping_notify((xcb_mapping_notify_event_t*)event);
break;
case XCB_CONFIGURE_NOTIFY:
handle_screen_resize();
break;
default:
if (type == xkb_base_event)
process_xkb_event(event);
}
free(event);
@ -745,6 +790,30 @@ int main(int argc, char *argv[]) {
&xkb_base_error) != 1)
errx(EXIT_FAILURE, "Could not setup XKB extension.");
static const xcb_xkb_map_part_t required_map_parts =
(XCB_XKB_MAP_PART_KEY_TYPES |
XCB_XKB_MAP_PART_KEY_SYMS |
XCB_XKB_MAP_PART_MODIFIER_MAP |
XCB_XKB_MAP_PART_EXPLICIT_COMPONENTS |
XCB_XKB_MAP_PART_KEY_ACTIONS |
XCB_XKB_MAP_PART_VIRTUAL_MODS |
XCB_XKB_MAP_PART_VIRTUAL_MOD_MAP);
static const xcb_xkb_event_type_t required_events =
(XCB_XKB_EVENT_TYPE_NEW_KEYBOARD_NOTIFY |
XCB_XKB_EVENT_TYPE_MAP_NOTIFY |
XCB_XKB_EVENT_TYPE_STATE_NOTIFY);
xcb_xkb_select_events(
conn,
xkb_x11_get_core_keyboard_device_id(conn),
required_events,
0,
required_events,
required_map_parts,
required_map_parts,
0);
/* When we cannot initially load the keymap, we better exit */
if (!load_keymap())
errx(EXIT_FAILURE, "Could not load keymap");