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backend/x11: Add new Xinput events

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This commit is contained in:
Scott Anderson 2018-11-11 14:21:49 +13:00
parent 88b2d6fe25
commit d89e868cc9
3 changed files with 158 additions and 1 deletions
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139
backend/x11/input_device.c
View File

@ -9,6 +9,7 @@
#endif
#include <xcb/xcb.h>
#include <xcb/xinput.h>
#if WLR_HAS_XCB_XKB
#include <xcb/xkb.h>
#endif
@ -26,7 +27,6 @@ static uint32_t xcb_button_to_wl(uint32_t button) {
case XCB_BUTTON_INDEX_1: return BTN_LEFT;
case XCB_BUTTON_INDEX_2: return BTN_MIDDLE;
case XCB_BUTTON_INDEX_3: return BTN_RIGHT;
// XXX: I'm not sure the scroll-wheel direction is right
case XCB_BUTTON_INDEX_4: return BTN_GEAR_UP;
case XCB_BUTTON_INDEX_5: return BTN_GEAR_DOWN;
default: return 0;
@ -142,6 +142,143 @@ void handle_x11_input_event(struct wlr_x11_backend *x11,
}
}
static void send_key_event(struct wlr_x11_backend *x11, uint32_t key,
enum wlr_key_state st, xcb_timestamp_t time) {
struct wlr_event_keyboard_key ev = {
.time_msec = time,
.keycode = key,
.state = st,
.update_state = true,
};
wlr_keyboard_notify_key(&x11->keyboard, &ev);
}
static void send_button_event(struct wlr_x11_output *output, uint32_t key,
enum wlr_button_state st, xcb_timestamp_t time) {
struct wlr_event_pointer_button ev = {
.device = &output->pointer_dev,
.time_msec = time,
.button = key,
.state = st,
};
wlr_signal_emit_safe(&output->pointer.events.button, &ev);
}
static void send_axis_event(struct wlr_x11_output *output, int32_t delta,
xcb_timestamp_t time) {
struct wlr_event_pointer_axis ev = {
.device = &output->pointer_dev,
.time_msec = time,
.source = WLR_AXIS_SOURCE_WHEEL,
.orientation = WLR_AXIS_ORIENTATION_VERTICAL,
// 15 is a typical value libinput sends for one scroll
.delta = delta * 15,
.delta_discrete = delta,
};
wlr_signal_emit_safe(&output->pointer.events.axis, &ev);
}
void handle_x11_xinput_event(struct wlr_x11_backend *x11,
xcb_ge_generic_event_t *event) {
struct wlr_x11_output *output;
switch (event->event_type) {
case XCB_INPUT_KEY_PRESS: {
xcb_input_key_press_event_t *ev =
(xcb_input_key_press_event_t *)event;
wlr_keyboard_notify_modifiers(&x11->keyboard, ev->mods.base,
ev->mods.latched, ev->mods.locked, ev->mods.effective);
send_key_event(x11, ev->detail - 8, WLR_KEY_PRESSED, ev->time);
x11->time = ev->time;
break;
}
case XCB_INPUT_KEY_RELEASE: {
xcb_input_key_release_event_t *ev =
(xcb_input_key_release_event_t *)event;
wlr_keyboard_notify_modifiers(&x11->keyboard, ev->mods.base,
ev->mods.latched, ev->mods.locked, ev->mods.effective);
send_key_event(x11, ev->detail - 8, WLR_KEY_RELEASED, ev->time);
x11->time = ev->time;
break;
}
case XCB_INPUT_BUTTON_PRESS: {
xcb_input_button_press_event_t *ev =
(xcb_input_button_press_event_t *)event;
output = get_x11_output_from_window_id(x11, ev->event);
if (!output) {
return;
}
switch (ev->detail) {
case XCB_BUTTON_INDEX_1:
send_button_event(output, BTN_LEFT, WLR_BUTTON_PRESSED,
ev->time);
break;
case XCB_BUTTON_INDEX_2:
send_button_event(output, BTN_MIDDLE, WLR_BUTTON_PRESSED,
ev->time);
break;
case XCB_BUTTON_INDEX_3:
send_button_event(output, BTN_RIGHT, WLR_BUTTON_PRESSED,
ev->time);
break;
case XCB_BUTTON_INDEX_4:
send_axis_event(output, -1, ev->time);
break;
case XCB_BUTTON_INDEX_5:
send_axis_event(output, 1, ev->time);
break;
}
x11->time = ev->time;
break;
}
case XCB_INPUT_BUTTON_RELEASE: {
xcb_input_button_release_event_t *ev =
(xcb_input_button_release_event_t *)event;
output = get_x11_output_from_window_id(x11, ev->event);
if (!output) {
return;
}
switch (ev->detail) {
case XCB_BUTTON_INDEX_1:
send_button_event(output, BTN_LEFT, WLR_BUTTON_RELEASED,
ev->time);
break;
case XCB_BUTTON_INDEX_2:
send_button_event(output, BTN_MIDDLE, WLR_BUTTON_RELEASED,
ev->time);
break;
case XCB_BUTTON_INDEX_3:
send_button_event(output, BTN_RIGHT, WLR_BUTTON_RELEASED,
ev->time);
break;
}
x11->time = ev->time;
break;
}
case XCB_INPUT_MOTION: {
xcb_input_motion_event_t *ev = (xcb_input_motion_event_t *)event;
output = get_x11_output_from_window_id(x11, ev->event);
if (!output) {
return;
}
x11_handle_pointer_position(output, ev->event_x >> 16,
ev->event_y >> 16, ev->time);
x11->time = ev->time;
break;
}
}
}
static void input_device_destroy(struct wlr_input_device *wlr_device) {
// Don't free the input device, it's on the stack
}

18
backend/x11/output.c
View File

@ -4,6 +4,9 @@
#include <stdlib.h>
#include <string.h>
#include <xcb/xcb.h>
#include <xcb/xinput.h>
#include <wlr/interfaces/wlr_output.h>
#include <wlr/interfaces/wlr_pointer.h>
#include <wlr/util/log.h>
@ -160,6 +163,21 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
x11->screen->root, 0, 0, wlr_output->width, wlr_output->height, 1,
XCB_WINDOW_CLASS_INPUT_OUTPUT, x11->screen->root_visual, mask, values);
#if 0
struct {
xcb_input_event_mask_t head;
xcb_input_xi_event_mask_t mask;
} xinput_mask = {
.head = { .deviceid = XCB_INPUT_DEVICE_ALL_MASTER, .mask_len = 1 },
.mask = XCB_INPUT_XI_EVENT_MASK_KEY_PRESS |
XCB_INPUT_XI_EVENT_MASK_KEY_RELEASE |
XCB_INPUT_XI_EVENT_MASK_BUTTON_PRESS |
XCB_INPUT_XI_EVENT_MASK_BUTTON_RELEASE |
XCB_INPUT_XI_EVENT_MASK_MOTION,
};
xcb_input_xi_select_events(x11->xcb, output->win, 1, &xinput_mask.head);
#endif
output->surf = wlr_egl_create_surface(&x11->egl, &output->win);
if (!output->surf) {
wlr_log(WLR_ERROR, "Failed to create EGL surface");

2
include/backend/x11.h
View File

@ -89,6 +89,8 @@ extern const struct wlr_input_device_impl input_device_impl;
void handle_x11_input_event(struct wlr_x11_backend *x11,
xcb_generic_event_t *event);
void handle_x11_xinput_event(struct wlr_x11_backend *x11,
xcb_ge_generic_event_t *event);
void update_x11_pointer_position(struct wlr_x11_output *output,
xcb_timestamp_t time);