diff options
Diffstat (limited to 'backend/x11/input_device.c')
| -rw-r--r-- | backend/x11/input_device.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/backend/x11/input_device.c b/backend/x11/input_device.c new file mode 100644 index 00000000..32b1a1ac --- /dev/null +++ b/backend/x11/input_device.c @@ -0,0 +1,136 @@ +#include <wlr/interfaces/wlr_input_device.h> +#include <wlr/interfaces/wlr_keyboard.h> +#include <wlr/interfaces/wlr_pointer.h> +#include <wlr/util/log.h> +#include <xcb/xcb.h> +#ifdef __linux__ +#include <linux/input-event-codes.h> +#elif __FreeBSD__ +#include <dev/evdev/input-event-codes.h> +#endif +#include "backend/x11.h" +#include "util/signal.h" + +static uint32_t xcb_button_to_wl(uint32_t button) { + switch (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; + } +} + +bool x11_handle_input_event(struct wlr_x11_backend *x11, + xcb_generic_event_t *event) { + switch (event->response_type & XCB_EVENT_RESPONSE_TYPE_MASK) { + case XCB_KEY_PRESS: + case XCB_KEY_RELEASE: { + xcb_key_press_event_t *ev = (xcb_key_press_event_t *)event; + struct wlr_event_keyboard_key key = { + .time_msec = ev->time, + .keycode = ev->detail - 8, + .state = event->response_type == XCB_KEY_PRESS ? + WLR_KEY_PRESSED : WLR_KEY_RELEASED, + .update_state = true, + }; + + // TODO use xcb-xkb for more precise modifiers state? + wlr_keyboard_notify_key(&x11->keyboard, &key); + x11->time = ev->time; + return true; + } + case XCB_BUTTON_PRESS: { + xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event; + + if (ev->detail == XCB_BUTTON_INDEX_4 || + ev->detail == XCB_BUTTON_INDEX_5) { + double delta = (ev->detail == XCB_BUTTON_INDEX_4 ? -15 : 15); + struct wlr_event_pointer_axis axis = { + .device = &x11->pointer_dev, + .time_msec = ev->time, + .source = WLR_AXIS_SOURCE_WHEEL, + .orientation = WLR_AXIS_ORIENTATION_VERTICAL, + .delta = delta, + }; + wlr_signal_emit_safe(&x11->pointer.events.axis, &axis); + x11->time = ev->time; + break; + } + } + /* fallthrough */ + case XCB_BUTTON_RELEASE: { + xcb_button_press_event_t *ev = (xcb_button_press_event_t *)event; + + if (ev->detail != XCB_BUTTON_INDEX_4 && + ev->detail != XCB_BUTTON_INDEX_5) { + struct wlr_event_pointer_button button = { + .device = &x11->pointer_dev, + .time_msec = ev->time, + .button = xcb_button_to_wl(ev->detail), + .state = event->response_type == XCB_BUTTON_PRESS ? + WLR_BUTTON_PRESSED : WLR_BUTTON_RELEASED, + }; + + wlr_signal_emit_safe(&x11->pointer.events.button, &button); + } + x11->time = ev->time; + return true; + } + case XCB_MOTION_NOTIFY: { + xcb_motion_notify_event_t *ev = (xcb_motion_notify_event_t *)event; + + struct wlr_x11_output *output = + x11_output_from_window_id(x11, ev->event); + if (output == NULL) { + return false; + } + struct wlr_output *wlr_output = &output->wlr_output; + + struct wlr_box box = { .x = ev->event_x, .y = ev->event_y }; + wlr_box_transform(&box, wlr_output->transform, wlr_output->width, + wlr_output->height, &box); + box.x /= wlr_output->scale; + box.y /= wlr_output->scale; + + struct wlr_box layout_box; + x11_output_layout_get_box(x11, &layout_box); + + double ox = wlr_output->lx / (double)layout_box.width; + double oy = wlr_output->ly / (double)layout_box.height; + + struct wlr_event_pointer_motion_absolute wlr_event = { + .device = &x11->pointer_dev, + .time_msec = ev->time, + .x = box.x / (double)layout_box.width + ox, + .y = box.y / (double)layout_box.height + oy, + }; + + wlr_signal_emit_safe(&x11->pointer.events.motion_absolute, &wlr_event); + + x11->time = ev->time; + return true; + } + default: +#ifdef WLR_HAS_XCB_XKB + if (x11->xkb_supported && event->response_type == x11->xkb_base_event) { + xcb_xkb_state_notify_event_t *ev = + (xcb_xkb_state_notify_event_t *)event; + wlr_keyboard_notify_modifiers(&x11->keyboard, ev->baseMods, + ev->latchedMods, ev->lockedMods, ev->lockedGroup); + return true; + } +#endif + break; + } + + return false; +} + +const struct wlr_input_device_impl input_device_impl = { 0 }; + +bool wlr_input_device_is_x11(struct wlr_input_device *wlr_dev) { + return wlr_dev->impl == &input_device_impl; +} |