swayfx/swaybar/input.c

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7.6 KiB
C
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#include <assert.h>
#ifdef __FreeBSD__
#include <dev/evdev/input-event-codes.h>
#else
#include <linux/input-event-codes.h>
#endif
#include <wayland-client.h>
#include <wayland-cursor.h>
#include <wlr/util/log.h>
#include "list.h"
#include "log.h"
#include "swaybar/bar.h"
#include "swaybar/config.h"
#include "swaybar/input.h"
#include "swaybar/ipc.h"
void free_hotspots(struct wl_list *list) {
struct swaybar_hotspot *hotspot, *tmp;
wl_list_for_each_safe(hotspot, tmp, list, link) {
wl_list_remove(&hotspot->link);
if (hotspot->destroy) {
hotspot->destroy(hotspot->data);
}
free(hotspot);
}
}
static enum x11_button wl_button_to_x11_button(uint32_t button) {
switch (button) {
case BTN_LEFT:
return LEFT;
case BTN_MIDDLE:
return MIDDLE;
case BTN_RIGHT:
return RIGHT;
case BTN_SIDE:
return BACK;
case BTN_EXTRA:
return FORWARD;
default:
return NONE;
}
}
static enum x11_button wl_axis_to_x11_button(uint32_t axis, wl_fixed_t value) {
switch (axis) {
case WL_POINTER_AXIS_VERTICAL_SCROLL:
return wl_fixed_to_double(value) < 0 ? SCROLL_UP : SCROLL_DOWN;
case WL_POINTER_AXIS_HORIZONTAL_SCROLL:
return wl_fixed_to_double(value) < 0 ? SCROLL_LEFT : SCROLL_RIGHT;
default:
wlr_log(WLR_DEBUG, "Unexpected axis value on mouse scroll");
return NONE;
}
}
static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface,
wl_fixed_t surface_x, wl_fixed_t surface_y) {
struct swaybar *bar = data;
struct swaybar_pointer *pointer = &bar->pointer;
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
if (output->surface == surface) {
pointer->current = output;
break;
}
}
int max_scale = 1;
struct swaybar_output *_output;
wl_list_for_each(_output, &bar->outputs, link) {
if (_output->scale > max_scale) {
max_scale = _output->scale;
}
}
wl_surface_set_buffer_scale(pointer->cursor_surface, max_scale);
wl_surface_attach(pointer->cursor_surface,
wl_cursor_image_get_buffer(pointer->cursor_image), 0, 0);
wl_pointer_set_cursor(wl_pointer, serial, pointer->cursor_surface,
pointer->cursor_image->hotspot_x / max_scale,
pointer->cursor_image->hotspot_y / max_scale);
wl_surface_commit(pointer->cursor_surface);
}
static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *surface) {
struct swaybar *bar = data;
bar->pointer.current = NULL;
}
static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
struct swaybar *bar = data;
bar->pointer.x = wl_fixed_to_int(surface_x);
bar->pointer.y = wl_fixed_to_int(surface_y);
}
static bool check_bindings(struct swaybar *bar, uint32_t x11_button,
uint32_t state) {
bool released = state == WL_POINTER_BUTTON_STATE_RELEASED;
for (int i = 0; i < bar->config->bindings->length; i++) {
struct swaybar_binding *binding = bar->config->bindings->items[i];
if (binding->button == x11_button && binding->release == released) {
ipc_execute_binding(bar, binding);
return true;
}
}
return false;
}
static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
struct swaybar *bar = data;
struct swaybar_pointer *pointer = &bar->pointer;
struct swaybar_output *output = pointer->current;
if (!sway_assert(output, "button with no active output")) {
return;
}
if (check_bindings(bar, wl_button_to_x11_button(button), state)) {
return;
}
if (state != WL_POINTER_BUTTON_STATE_PRESSED) {
return;
}
struct swaybar_hotspot *hotspot;
wl_list_for_each(hotspot, &output->hotspots, link) {
double x = pointer->x * output->scale;
double y = pointer->y * output->scale;
if (x >= hotspot->x
&& y >= hotspot->y
&& x < hotspot->x + hotspot->width
&& y < hotspot->y + hotspot->height) {
if (HOTSPOT_IGNORE == hotspot->callback(output, pointer->x, pointer->y,
wl_button_to_x11_button(button), hotspot->data)) {
return;
}
}
}
}
static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
uint32_t time, uint32_t axis, wl_fixed_t value) {
struct swaybar *bar = data;
struct swaybar_pointer *pointer = &bar->pointer;
struct swaybar_output *output = pointer->current;
if (!sway_assert(output, "axis with no active output")) {
return;
}
// If there is a button press binding, execute it, skip default behavior,
// and check button release bindings
if (check_bindings(bar, wl_axis_to_x11_button(axis, value),
WL_POINTER_BUTTON_STATE_PRESSED)) {
check_bindings(bar, wl_axis_to_x11_button(axis, value),
WL_POINTER_BUTTON_STATE_RELEASED);
return;
}
struct swaybar_hotspot *hotspot;
wl_list_for_each(hotspot, &output->hotspots, link) {
double x = pointer->x * output->scale;
double y = pointer->y * output->scale;
if (x >= hotspot->x
&& y >= hotspot->y
&& x < hotspot->x + hotspot->width
&& y < hotspot->y + hotspot->height) {
if (HOTSPOT_IGNORE == hotspot->callback(
output, pointer->x, pointer->y,
wl_axis_to_x11_button(axis, value), hotspot->data)) {
return;
}
}
}
double amt = wl_fixed_to_double(value);
if (amt == 0.0) {
return;
}
// last doesn't actually need initialization,
// but gcc (7.3.1) is too dumb to figure it out
struct swaybar_workspace *first = NULL;
struct swaybar_workspace *active = NULL;
struct swaybar_workspace *last = NULL;
struct swaybar_workspace *iter;
wl_list_for_each(iter, &output->workspaces, link) {
if (!first) {
first = iter;
}
if (iter->visible) {
active = iter;
}
last = iter;
}
if (!sway_assert(active, "axis with null workspace")) {
return;
}
struct swaybar_workspace *new;
if (amt > 0.0) {
if (active == first) {
if (!bar->config->wrap_scroll) {
return;
}
new = last;
}
new = wl_container_of(active->link.prev, new, link);
} else {
if (active == last) {
if (!bar->config->wrap_scroll) {
return;
}
new = first;
}
new = wl_container_of(active->link.next, new, link);
}
ipc_send_workspace_command(bar, new->name);
// Check button release bindings
check_bindings(bar, wl_axis_to_x11_button(axis, value),
WL_POINTER_BUTTON_STATE_RELEASED);
}
static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {
// Who cares
}
static void wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
uint32_t axis_source) {
// Who cares
}
static void wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
uint32_t time, uint32_t axis) {
// Who cares
}
static void wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
uint32_t axis, int32_t discrete) {
// Who cares
}
struct wl_pointer_listener pointer_listener = {
.enter = wl_pointer_enter,
.leave = wl_pointer_leave,
.motion = wl_pointer_motion,
.button = wl_pointer_button,
.axis = wl_pointer_axis,
.frame = wl_pointer_frame,
.axis_source = wl_pointer_axis_source,
.axis_stop = wl_pointer_axis_stop,
.axis_discrete = wl_pointer_axis_discrete,
};
static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
enum wl_seat_capability caps) {
struct swaybar *bar = data;
if (bar->pointer.pointer != NULL) {
wl_pointer_release(bar->pointer.pointer);
bar->pointer.pointer = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
bar->pointer.pointer = wl_seat_get_pointer(wl_seat);
wl_pointer_add_listener(bar->pointer.pointer, &pointer_listener, bar);
}
}
static void seat_handle_name(void *data, struct wl_seat *wl_seat,
const char *name) {
// Who cares
}
const struct wl_seat_listener seat_listener = {
.capabilities = seat_handle_capabilities,
.name = seat_handle_name,
};