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input: Query scene graph for relevant surface/node intersections

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This commit is contained in:
Alexander Orzechowski 2023-11-23 10:09:48 -05:00 • committed by Kirill Primak
parent 946fc80945
commit 5b8b505af5
7 changed files with 93 additions and 412 deletions
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194
sway/input/cursor.c
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@ -37,43 +37,6 @@ static uint32_t get_current_time_msec(void) {
return now.tv_sec * 1000 + now.tv_nsec / 1000000;
}
static struct wlr_surface *layer_surface_at(struct sway_output *output,
struct wl_list *layer, double ox, double oy, double *sx, double *sy) {
struct sway_layer_surface *sway_layer;
wl_list_for_each_reverse(sway_layer, layer, link) {
double _sx = ox - sway_layer->geo.x;
double _sy = oy - sway_layer->geo.y;
struct wlr_surface *sub = wlr_layer_surface_v1_surface_at(
sway_layer->layer_surface, _sx, _sy, sx, sy);
if (sub) {
return sub;
}
}
return NULL;
}
static bool surface_is_xdg_popup(struct wlr_surface *surface) {
struct wlr_xdg_surface *xdg_surface =
wlr_xdg_surface_try_from_wlr_surface(surface);
return xdg_surface != NULL && xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP &&
xdg_surface->popup != NULL;
}
static struct wlr_surface *layer_surface_popup_at(struct sway_output *output,
struct wl_list *layer, double ox, double oy, double *sx, double *sy) {
struct sway_layer_surface *sway_layer;
wl_list_for_each_reverse(sway_layer, layer, link) {
double _sx = ox - sway_layer->geo.x;
double _sy = oy - sway_layer->geo.y;
struct wlr_surface *sub = wlr_layer_surface_v1_surface_at(
sway_layer->layer_surface, _sx, _sy, sx, sy);
if (sub && surface_is_xdg_popup(sub)) {
return sub;
}
}
return NULL;
}
/**
* Returns the node at the cursor's position. If there is a surface at that
* location, it is stored in **surface (it may not be a view).
@ -81,119 +44,82 @@ static struct wlr_surface *layer_surface_popup_at(struct sway_output *output,
struct sway_node *node_at_coords(
struct sway_seat *seat, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
// find the output the cursor is on
struct wlr_scene_node *scene_node = NULL;
struct wlr_scene_node *node;
wl_list_for_each_reverse(node, &root->layer_tree->children, link) {
struct wlr_scene_tree *layer = wlr_scene_tree_from_node(node);
bool non_interactive = scene_descriptor_try_get(&layer->node,
SWAY_SCENE_DESC_NON_INTERACTIVE);
if (non_interactive) {
continue;
}
scene_node = wlr_scene_node_at(&layer->node, lx, ly, sx, sy);
if (scene_node) {
break;
}
}
if (scene_node) {
// determine what wlr_surface we clicked on
if (scene_node->type == WLR_SCENE_NODE_BUFFER) {
struct wlr_scene_buffer *scene_buffer =
wlr_scene_buffer_from_node(scene_node);
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_try_from_buffer(scene_buffer);
if (scene_surface) {
*surface = scene_surface->surface;
}
}
// determine what container we clicked on
struct wlr_scene_node *current = scene_node;
while (true) {
struct sway_container *con = scene_descriptor_try_get(current,
SWAY_SCENE_DESC_CONTAINER);
if (!con) {
struct sway_view *view = scene_descriptor_try_get(current,
SWAY_SCENE_DESC_VIEW);
if (view) {
con = view->container;
}
}
if (con) {
if (!con->view || con->view->surface) {
return &con->node;
}
}
if (!current->parent) {
break;
}
current = &current->parent->node;
}
}
// if we aren't on a container, determine what workspace we are on
struct wlr_output *wlr_output = wlr_output_layout_output_at(
root->output_layout, lx, ly);
if (wlr_output == NULL) {
return NULL;
}
struct sway_output *output = wlr_output->data;
if (!output || !output->enabled) {
// output is being destroyed or is being enabled
return NULL;
}
double ox = lx, oy = ly;
wlr_output_layout_output_coords(root->output_layout, wlr_output, &ox, &oy);
// layer surfaces on the overlay layer are rendered on top
if ((*surface = layer_surface_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY],
ox, oy, sx, sy))) {
return NULL;
}
// check for unmanaged views
#if HAVE_XWAYLAND
struct wl_list *unmanaged = &root->xwayland_unmanaged;
struct sway_xwayland_unmanaged *unmanaged_surface;
wl_list_for_each_reverse(unmanaged_surface, unmanaged, link) {
struct wlr_xwayland_surface *xsurface =
unmanaged_surface->wlr_xwayland_surface;
double _sx = lx - unmanaged_surface->lx;
double _sy = ly - unmanaged_surface->ly;
if (wlr_surface_point_accepts_input(xsurface->surface, _sx, _sy)) {
*surface = xsurface->surface;
*sx = _sx;
*sy = _sy;
return NULL;
}
}
#endif
if (root->fullscreen_global) {
// Try fullscreen container
struct sway_container *con = tiling_container_at(
&root->fullscreen_global->node, lx, ly, surface, sx, sy);
if (con) {
return &con->node;
}
return NULL;
}
// find the focused workspace on the output for this seat
struct sway_workspace *ws = output_get_active_workspace(output);
if (!ws) {
return NULL;
}
if (ws->fullscreen) {
// Try transient containers
for (int i = 0; i < ws->floating->length; ++i) {
struct sway_container *floater = ws->floating->items[i];
if (container_is_transient_for(floater, ws->fullscreen)) {
struct sway_container *con = tiling_container_at(
&floater->node, lx, ly, surface, sx, sy);
if (con) {
return &con->node;
}
}
}
// Try fullscreen container
struct sway_container *con =
tiling_container_at(&ws->fullscreen->node, lx, ly, surface, sx, sy);
if (con) {
return &con->node;
}
return NULL;
}
if ((*surface = layer_surface_popup_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
ox, oy, sx, sy))) {
return NULL;
}
if ((*surface = layer_surface_popup_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
ox, oy, sx, sy))) {
return NULL;
}
if ((*surface = layer_surface_popup_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
ox, oy, sx, sy))) {
return NULL;
}
if ((*surface = layer_surface_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_TOP],
ox, oy, sx, sy))) {
return NULL;
}
struct sway_container *c;
if ((c = container_at(ws, lx, ly, surface, sx, sy))) {
return &c->node;
}
if ((*surface = layer_surface_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM],
ox, oy, sx, sy))) {
return NULL;
}
if ((*surface = layer_surface_at(output,
&output->shell_layers[ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND],
ox, oy, sx, sy))) {
return NULL;
}
return &ws->node;
}