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input: Query scene graph for relevant surface/node intersections

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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3
include/sway/scene_descriptor.h
View File

@ -12,6 +12,9 @@
enum sway_scene_descriptor_type {
SWAY_SCENE_DESC_BUFFER_TIMER,
SWAY_SCENE_DESC_NON_INTERACTIVE,
SWAY_SCENE_DESC_CONTAINER,
SWAY_SCENE_DESC_VIEW,
SWAY_SCENE_DESC_DRAG_ICON,
};

13
include/sway/tree/container.h
View File

@ -172,19 +172,6 @@ void container_begin_destroy(struct sway_container *con);
struct sway_container *container_find_child(struct sway_container *container,
bool (*test)(struct sway_container *view, void *data), void *data);
/**
* Find a container at the given coordinates. Returns the surface and
* surface-local coordinates of the given layout coordinates if the container
* is a view and the view contains a surface at those coordinates.
*/
struct sway_container *container_at(struct sway_workspace *workspace,
double lx, double ly, struct wlr_surface **surface,
double *sx, double *sy);
struct sway_container *tiling_container_at(
struct sway_node *parent, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy);
void container_for_each_child(struct sway_container *container,
void (*f)(struct sway_container *container, void *data), void *data);

4
include/sway/tree/root.h
View File

@ -35,6 +35,10 @@ struct sway_root {
// staging node will be visible.
struct wlr_scene_tree *staging;
// tree containing all layers the compositor will render. Cursor handling
// will end up iterating this tree.
struct wlr_scene_tree *layer_tree;
struct {
struct wlr_scene_tree *tiling;
struct wlr_scene_tree *floating;

194
sway/input/cursor.c
View File

@ -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;
}

265
sway/tree/container.c
View File

@ -16,6 +16,7 @@
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/scene_descriptor.h"
#include "sway/output.h"
#include "sway/server.h"
#include "sway/surface.h"
@ -94,6 +95,11 @@ struct sway_container *container_create(struct sway_view *view) {
c->border.right = alloc_rect_node(c->border.tree, &failed);
}
if (!failed && !scene_descriptor_assign(&c->scene_tree->node,
SWAY_SCENE_DESC_CONTAINER, c)) {
failed = true;
}
if (failed) {
wlr_scene_node_destroy(&c->scene_tree->node);
free(c);
@ -239,265 +245,6 @@ struct sway_container *container_find_child(struct sway_container *container,
return NULL;
}
static struct sway_container *surface_at_view(struct sway_container *con, double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (!sway_assert(con->view, "Expected a view")) {
return NULL;
}
struct sway_view *view = con->view;
double view_sx = lx - con->surface_x + view->geometry.x;
double view_sy = ly - con->surface_y + view->geometry.y;
double _sx, _sy;
struct wlr_surface *_surface = NULL;
switch (view->type) {
#if HAVE_XWAYLAND
case SWAY_VIEW_XWAYLAND:
_surface = wlr_surface_surface_at(view->surface,
view_sx, view_sy, &_sx, &_sy);
break;
#endif
case SWAY_VIEW_XDG_SHELL:
_surface = wlr_xdg_surface_surface_at(
view->wlr_xdg_toplevel->base,
view_sx, view_sy, &_sx, &_sy);
break;
}
if (_surface) {
*sx = _sx;
*sy = _sy;
*surface = _surface;
return con;
}
return NULL;
}
/**
* container_at for a container with layout L_TABBED.
*/
static struct sway_container *container_at_tabbed(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
struct wlr_box box;
node_get_box(parent, &box);
if (lx < box.x || lx > box.x + box.width ||
ly < box.y || ly > box.y + box.height) {
return NULL;
}
struct sway_seat *seat = input_manager_current_seat();
list_t *children = node_get_children(parent);
if (!children->length) {
return NULL;
}
// Tab titles
int title_height = container_titlebar_height();
if (ly < box.y + title_height) {
int tab_width = box.width / children->length;
int child_index = (lx - box.x) / tab_width;
if (child_index >= children->length) {
child_index = children->length - 1;
}
struct sway_container *child = children->items[child_index];
return child;
}
// Surfaces
struct sway_node *current = seat_get_active_tiling_child(seat, parent);
return current ? tiling_container_at(current, lx, ly, surface, sx, sy) : NULL;
}
/**
* container_at for a container with layout L_STACKED.
*/
static struct sway_container *container_at_stacked(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
struct wlr_box box;
node_get_box(parent, &box);
if (lx < box.x || lx > box.x + box.width ||
ly < box.y || ly > box.y + box.height) {
return NULL;
}
struct sway_seat *seat = input_manager_current_seat();
list_t *children = node_get_children(parent);
// Title bars
int title_height = container_titlebar_height();
if (title_height > 0) {
int child_index = (ly - box.y) / title_height;
if (child_index < children->length) {
struct sway_container *child = children->items[child_index];
return child;
}
}
// Surfaces
struct sway_node *current = seat_get_active_tiling_child(seat, parent);
return current ? tiling_container_at(current, lx, ly, surface, sx, sy) : NULL;
}
/**
* container_at for a container with layout L_HORIZ or L_VERT.
*/
static struct sway_container *container_at_linear(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
list_t *children = node_get_children(parent);
for (int i = 0; i < children->length; ++i) {
struct sway_container *child = children->items[i];
struct sway_container *container =
tiling_container_at(&child->node, lx, ly, surface, sx, sy);
if (container) {
return container;
}
}
return NULL;
}
static struct sway_container *floating_container_at(double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
// For outputs with floating containers that overhang the output bounds,
// those at the end of the output list appear on top of floating
// containers from other outputs, so iterate the list in reverse.
for (int i = root->outputs->length - 1; i >= 0; --i) {
struct sway_output *output = root->outputs->items[i];
for (int j = 0; j < output->workspaces->length; ++j) {
struct sway_workspace *ws = output->workspaces->items[j];
if (!workspace_is_visible(ws)) {
continue;
}
// Items at the end of the list are on top, so iterate the list in
// reverse.
for (int k = ws->floating->length - 1; k >= 0; --k) {
struct sway_container *floater = ws->floating->items[k];
struct sway_container *container =
tiling_container_at(&floater->node, lx, ly, surface, sx, sy);
if (container) {
return container;
}
}
}
}
return NULL;
}
static struct sway_container *view_container_content_at(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (!sway_assert(node_is_view(parent), "Expected a view")) {
return NULL;
}
struct sway_container *container = parent->sway_container;
struct wlr_box box = {
.x = container->pending.content_x,
.y = container->pending.content_y,
.width = container->pending.content_width,
.height = container->pending.content_height,
};
if (wlr_box_contains_point(&box, lx, ly)) {
surface_at_view(parent->sway_container, lx, ly, surface, sx, sy);
return container;
}
return NULL;
}
static struct sway_container *view_container_at(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (!sway_assert(node_is_view(parent), "Expected a view")) {
return NULL;
}
struct sway_container *container = parent->sway_container;
struct wlr_box box = {
.x = container->pending.x,
.y = container->pending.y,
.width = container->pending.width,
.height = container->pending.height,
};
if (wlr_box_contains_point(&box, lx, ly)) {
surface_at_view(parent->sway_container, lx, ly, surface, sx, sy);
return container;
}
return NULL;
}
struct sway_container *tiling_container_at(struct sway_node *parent,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
if (node_is_view(parent)) {
return view_container_at(parent, lx, ly, surface, sx, sy);
}
if (!node_get_children(parent)) {
return NULL;
}
switch (node_get_layout(parent)) {
case L_HORIZ:
case L_VERT:
return container_at_linear(parent, lx, ly, surface, sx, sy);
case L_TABBED:
return container_at_tabbed(parent, lx, ly, surface, sx, sy);
case L_STACKED:
return container_at_stacked(parent, lx, ly, surface, sx, sy);
case L_NONE:
return NULL;
}
return NULL;
}
static bool surface_is_popup(struct wlr_surface *surface) {
while (wlr_xdg_surface_try_from_wlr_surface(surface) == NULL) {
struct wlr_subsurface *subsurface =
wlr_subsurface_try_from_wlr_surface(surface);
if (subsurface == NULL) {
return false;
}
surface = subsurface->parent;
}
struct wlr_xdg_surface *xdg_surface =
wlr_xdg_surface_try_from_wlr_surface(surface);
return xdg_surface->role == WLR_XDG_SURFACE_ROLE_POPUP && xdg_surface->popup != NULL;
}
struct sway_container *container_at(struct sway_workspace *workspace,
double lx, double ly,
struct wlr_surface **surface, double *sx, double *sy) {
struct sway_container *c;
struct sway_seat *seat = input_manager_current_seat();
struct sway_container *focus = seat_get_focused_container(seat);
bool is_floating = focus && container_is_floating_or_child(focus);
// Focused view's popups
if (focus && focus->view) {
c = surface_at_view(focus, lx, ly, surface, sx, sy);
if (c && surface_is_popup(*surface)) {
return c;
}
*surface = NULL;
}
// Floating
if ((c = floating_container_at(lx, ly, surface ,sx ,sy))) {
return c;
}
// Tiling (focused)
if (focus && focus->view && !is_floating) {
if ((c = view_container_content_at(&focus->node, lx, ly, surface, sx, sy))) {
return c;
}
}
// Tiling (non-focused)
if ((c = tiling_container_at(&workspace->node, lx, ly, surface, sx, sy))) {
return c;
}
return NULL;
}
void container_for_each_child(struct sway_container *container,
void (*f)(struct sway_container *container, void *data),
void *data) {

19
sway/tree/root.c
View File

@ -9,6 +9,7 @@
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/scene_descriptor.h"
#include "sway/tree/arrange.h"
#include "sway/tree/container.h"
#include "sway/tree/root.h"
@ -44,13 +45,19 @@ struct sway_root *root_create(struct wl_display *wl_display) {
bool failed = false;
root->staging = alloc_scene_tree(&root_scene->tree, &failed);
root->layer_tree = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.tiling = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.floating = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.fullscreen = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.fullscreen_global = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.seat = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.session_lock = alloc_scene_tree(&root_scene->tree, &failed);
root->layers.tiling = alloc_scene_tree(root->layer_tree, &failed);
root->layers.floating = alloc_scene_tree(root->layer_tree, &failed);
root->layers.fullscreen = alloc_scene_tree(root->layer_tree, &failed);
root->layers.fullscreen_global = alloc_scene_tree(root->layer_tree, &failed);
root->layers.seat = alloc_scene_tree(root->layer_tree, &failed);
root->layers.session_lock = alloc_scene_tree(root->layer_tree, &failed);
if (!failed && !scene_descriptor_assign(&root->layers.seat->node,
SWAY_SCENE_DESC_NON_INTERACTIVE, (void *)1)) {
failed = true;
}
if (failed) {
wlr_scene_node_destroy(&root_scene->tree.node);

7
sway/tree/view.c
View File

@ -24,6 +24,7 @@
#include "sway/ipc-server.h"
#include "sway/output.h"
#include "sway/input/seat.h"
#include "sway/scene_descriptor.h"
#include "sway/server.h"
#include "sway/surface.h"
#include "sway/tree/arrange.h"
@ -40,6 +41,12 @@ bool view_init(struct sway_view *view, enum sway_view_type type,
bool failed = false;
view->scene_tree = alloc_scene_tree(root->staging, &failed);
view->content_tree = alloc_scene_tree(view->scene_tree, &failed);
if (!failed && !scene_descriptor_assign(&view->scene_tree->node,
SWAY_SCENE_DESC_VIEW, view)) {
failed = true;
}
if (failed) {
wlr_scene_node_destroy(&view->scene_tree->node);
return false;