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334 lines
10 KiB
334 lines
10 KiB
#define _XOPEN_SOURCE 700
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#ifdef __linux__
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#include <linux/input-event-codes.h>
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#elif __FreeBSD__
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#include <dev/evdev/input-event-codes.h>
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#endif
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#include <wlr/types/wlr_cursor.h>
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#include <wlr/types/wlr_xcursor_manager.h>
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#include "list.h"
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#include "log.h"
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#include "sway/input/cursor.h"
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#include "sway/layers.h"
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#include "sway/output.h"
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#include "sway/tree/view.h"
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#include "wlr-layer-shell-unstable-v1-protocol.h"
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static void cursor_update_position(struct sway_cursor *cursor) {
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double x = cursor->cursor->x;
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double y = cursor->cursor->y;
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cursor->x = x;
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cursor->y = y;
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}
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static struct wlr_surface *layer_surface_at(struct sway_output *output,
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struct wl_list *layer, double ox, double oy, double *sx, double *sy) {
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struct sway_layer_surface *sway_layer;
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wl_list_for_each_reverse(sway_layer, layer, link) {
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struct wlr_surface *wlr_surface =
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sway_layer->layer_surface->surface;
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double _sx = ox - sway_layer->geo.x;
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double _sy = oy - sway_layer->geo.y;
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// TODO: Test popups/subsurfaces
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if (wlr_surface_point_accepts_input(wlr_surface, _sx, _sy)) {
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*sx = _sx;
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*sy = _sy;
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return wlr_surface;
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}
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}
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return NULL;
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}
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/**
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* Returns the container at the cursor's position. If there is a surface at that
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* location, it is stored in **surface (it may not be a view).
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*/
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static struct sway_container *container_at_cursor(struct sway_cursor *cursor,
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struct wlr_surface **surface, double *sx, double *sy) {
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// check for unmanaged views first
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struct wl_list *unmanaged = &root_container.sway_root->unmanaged_views;
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struct sway_view *view;
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wl_list_for_each_reverse(view, unmanaged, unmanaged_view_link) {
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if (view->type == SWAY_XWAYLAND_VIEW) {
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struct wlr_xwayland_surface *xsurface = view->wlr_xwayland_surface;
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struct wlr_box box = {
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.x = xsurface->x,
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.y = xsurface->y,
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.width = xsurface->width,
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.height = xsurface->height,
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};
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if (wlr_box_contains_point(&box, cursor->x, cursor->y)) {
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*surface = xsurface->surface;
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*sx = cursor->x - box.x;
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*sy = cursor->y - box.y;
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return NULL;
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}
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}
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}
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// find the output the cursor is on
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struct wlr_output_layout *output_layout =
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root_container.sway_root->output_layout;
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struct wlr_output *wlr_output =
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wlr_output_layout_output_at(output_layout, cursor->x, cursor->y);
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if (wlr_output == NULL) {
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return NULL;
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}
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struct sway_output *output = wlr_output->data;
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double ox = cursor->x, oy = cursor->y;
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wlr_output_layout_output_coords(output_layout, wlr_output, &ox, &oy);
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// find the focused workspace on the output for this seat
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struct sway_container *ws =
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sway_seat_get_focus_inactive(cursor->seat, output->swayc);
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if (ws && ws->type != C_WORKSPACE) {
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ws = container_parent(ws, C_WORKSPACE);
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}
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if (!ws) {
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return output->swayc;
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}
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if ((*surface = layer_surface_at(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
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ox, oy, sx, sy))) {
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return ws;
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}
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if ((*surface = layer_surface_at(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
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ox, oy, sx, sy))) {
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return ws;
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}
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struct sway_container *c;
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if ((c = container_at(ws, cursor->x, cursor->y, surface, sx, sy))) {
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return c;
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}
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if ((*surface = layer_surface_at(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
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ox, oy, sx, sy))) {
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return ws;
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}
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if ((*surface = layer_surface_at(output,
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&output->layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
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ox, oy, sx, sy))) {
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return ws;
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}
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return NULL;
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}
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static void cursor_send_pointer_motion(struct sway_cursor *cursor,
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uint32_t time) {
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struct wlr_seat *seat = cursor->seat->wlr_seat;
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struct wlr_surface *surface = NULL;
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double sx, sy;
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container_at_cursor(cursor, &surface, &sx, &sy);
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// reset cursor if switching between clients
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struct wl_client *client = NULL;
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if (surface != NULL) {
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client = wl_resource_get_client(surface->resource);
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}
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if (client != cursor->image_client) {
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wlr_xcursor_manager_set_cursor_image(cursor->xcursor_manager,
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"left_ptr", cursor->cursor);
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cursor->image_client = client;
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}
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// send pointer enter/leave
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if (surface != NULL) {
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wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
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wlr_seat_pointer_notify_motion(seat, time, sx, sy);
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} else {
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wlr_seat_pointer_clear_focus(seat);
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}
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}
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static void handle_cursor_motion(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, motion);
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struct wlr_event_pointer_motion *event = data;
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wlr_cursor_move(cursor->cursor, event->device,
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event->delta_x, event->delta_y);
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cursor_update_position(cursor);
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cursor_send_pointer_motion(cursor, event->time_msec);
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}
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static void handle_cursor_motion_absolute(struct wl_listener *listener,
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void *data) {
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struct sway_cursor *cursor =
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wl_container_of(listener, cursor, motion_absolute);
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struct wlr_event_pointer_motion_absolute *event = data;
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wlr_cursor_warp_absolute(cursor->cursor, event->device, event->x, event->y);
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cursor_update_position(cursor);
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cursor_send_pointer_motion(cursor, event->time_msec);
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}
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static void handle_cursor_button(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, button);
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struct wlr_event_pointer_button *event = data;
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if (event->button == BTN_LEFT) {
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struct wlr_surface *surface = NULL;
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double sx, sy;
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struct sway_container *cont =
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container_at_cursor(cursor, &surface, &sx, &sy);
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// Avoid moving keyboard focus from a surface that accepts it to one
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// that does not unless the change would move us to a new workspace.
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//
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// This prevents, for example, losing focus when clicking on swaybar.
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//
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// TODO: Replace this condition with something like
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// !surface_accepts_keyboard_input
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if (surface && cont && cont->type != C_VIEW) {
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struct sway_container *new_ws = cont;
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if (new_ws && new_ws->type != C_WORKSPACE) {
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new_ws = container_parent(new_ws, C_WORKSPACE);
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}
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struct sway_container *old_ws = sway_seat_get_focus(cursor->seat);
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if (old_ws && old_ws->type != C_WORKSPACE) {
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old_ws = container_parent(old_ws, C_WORKSPACE);
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}
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if (new_ws != old_ws) {
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sway_seat_set_focus(cursor->seat, cont);
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}
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} else {
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sway_seat_set_focus(cursor->seat, cont);
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}
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}
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wlr_seat_pointer_notify_button(cursor->seat->wlr_seat, event->time_msec,
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event->button, event->state);
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}
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static void handle_cursor_axis(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, axis);
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struct wlr_event_pointer_axis *event = data;
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wlr_seat_pointer_notify_axis(cursor->seat->wlr_seat, event->time_msec,
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event->orientation, event->delta);
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}
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static void handle_touch_down(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_down);
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struct wlr_event_touch_down *event = data;
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wlr_log(L_DEBUG, "TODO: handle touch down event: %p", event);
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}
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static void handle_touch_up(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, touch_up);
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struct wlr_event_touch_up *event = data;
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wlr_log(L_DEBUG, "TODO: handle touch up event: %p", event);
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}
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static void handle_touch_motion(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor =
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wl_container_of(listener, cursor, touch_motion);
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struct wlr_event_touch_motion *event = data;
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wlr_log(L_DEBUG, "TODO: handle touch motion event: %p", event);
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}
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static void handle_tool_axis(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_axis);
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struct wlr_event_tablet_tool_axis *event = data;
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wlr_log(L_DEBUG, "TODO: handle tool axis event: %p", event);
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}
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static void handle_tool_tip(struct wl_listener *listener, void *data) {
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struct sway_cursor *cursor = wl_container_of(listener, cursor, tool_tip);
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struct wlr_event_tablet_tool_tip *event = data;
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wlr_log(L_DEBUG, "TODO: handle tool tip event: %p", event);
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}
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static void handle_request_set_cursor(struct wl_listener *listener,
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void *data) {
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struct sway_cursor *cursor =
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wl_container_of(listener, cursor, request_set_cursor);
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struct wlr_seat_pointer_request_set_cursor_event *event = data;
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struct wl_client *focused_client = NULL;
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struct wlr_surface *focused_surface =
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cursor->seat->wlr_seat->pointer_state.focused_surface;
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if (focused_surface != NULL) {
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focused_client = wl_resource_get_client(focused_surface->resource);
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}
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// TODO: check cursor mode
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if (focused_client == NULL ||
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event->seat_client->client != focused_client) {
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wlr_log(L_DEBUG, "denying request to set cursor from unfocused client");
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return;
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}
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wlr_cursor_set_surface(cursor->cursor, event->surface, event->hotspot_x,
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event->hotspot_y);
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cursor->image_client = focused_client;
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}
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void sway_cursor_destroy(struct sway_cursor *cursor) {
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if (!cursor) {
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return;
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}
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wlr_xcursor_manager_destroy(cursor->xcursor_manager);
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wlr_cursor_destroy(cursor->cursor);
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free(cursor);
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}
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struct sway_cursor *sway_cursor_create(struct sway_seat *seat) {
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struct sway_cursor *cursor = calloc(1, sizeof(struct sway_cursor));
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if (!sway_assert(cursor, "could not allocate sway cursor")) {
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return NULL;
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}
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struct wlr_cursor *wlr_cursor = wlr_cursor_create();
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if (!sway_assert(wlr_cursor, "could not allocate wlr cursor")) {
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free(cursor);
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return NULL;
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}
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cursor->seat = seat;
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wlr_cursor_attach_output_layout(wlr_cursor,
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root_container.sway_root->output_layout);
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// input events
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wl_signal_add(&wlr_cursor->events.motion, &cursor->motion);
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cursor->motion.notify = handle_cursor_motion;
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wl_signal_add(&wlr_cursor->events.motion_absolute,
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&cursor->motion_absolute);
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cursor->motion_absolute.notify = handle_cursor_motion_absolute;
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wl_signal_add(&wlr_cursor->events.button, &cursor->button);
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cursor->button.notify = handle_cursor_button;
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wl_signal_add(&wlr_cursor->events.axis, &cursor->axis);
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cursor->axis.notify = handle_cursor_axis;
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wl_signal_add(&wlr_cursor->events.touch_down, &cursor->touch_down);
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cursor->touch_down.notify = handle_touch_down;
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wl_signal_add(&wlr_cursor->events.touch_up, &cursor->touch_up);
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cursor->touch_up.notify = handle_touch_up;
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wl_signal_add(&wlr_cursor->events.touch_motion,
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&cursor->touch_motion);
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cursor->touch_motion.notify = handle_touch_motion;
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wl_signal_add(&wlr_cursor->events.tablet_tool_axis,
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&cursor->tool_axis);
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cursor->tool_axis.notify = handle_tool_axis;
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wl_signal_add(&wlr_cursor->events.tablet_tool_tip, &cursor->tool_tip);
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cursor->tool_tip.notify = handle_tool_tip;
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wl_signal_add(&seat->wlr_seat->events.request_set_cursor,
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&cursor->request_set_cursor);
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cursor->request_set_cursor.notify = handle_request_set_cursor;
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cursor->cursor = wlr_cursor;
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return cursor;
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}
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