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wlr_scene: Transparently restack xwayland surfaces

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Scene will now automatically restack xwayland windows. Scene
compositors should drop calls to wlr_xwayland_surface_restack()
This commit is contained in:
Alexander Orzechowski 2024-07-31 14:09:33 -04:00
parent 66d96d244c
commit 1133bc15ce
1 changed files with 46 additions and 0 deletions
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46
types/scene/wlr_scene.c
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@ -20,6 +20,12 @@
#include "util/env.h"
#include "util/time.h"
#include <wlr/config.h>
#if WLR_HAS_XWAYLAND
#include <wlr/xwayland/xwayland.h>
#endif
#define HIGHLIGHT_DAMAGE_FADEOUT_TIME 250
struct wlr_scene_tree *wlr_scene_tree_from_node(struct wlr_scene_node *node) {
@ -274,6 +280,10 @@ struct scene_update_data {
struct wlr_box update_box;
struct wl_list *outputs;
bool calculate_visibility;
#if WLR_HAS_XWAYLAND
struct wlr_xwayland_surface *restack_above;
#endif
};
static uint32_t region_area(pixman_region32_t *region) {
@ -446,6 +456,39 @@ static void update_node_update_outputs(struct wlr_scene_node *node,
wl_signal_emit_mutable(&scene_buffer->events.outputs_update, &event);
}
#if WLR_HAS_XWAYLAND
static void restack_xwayland_surface(struct wlr_scene_node *node,
struct wlr_box *box, struct scene_update_data *data) {
if (node->type != WLR_SCENE_NODE_BUFFER) {
return;
}
struct wlr_scene_buffer *buffer_node = wlr_scene_buffer_from_node(node);
struct wlr_scene_surface *surface_node = wlr_scene_surface_try_from_buffer(buffer_node);
if (!surface_node) {
return;
}
struct wlr_xwayland_surface *xwayland_surface =
wlr_xwayland_surface_try_from_wlr_surface(surface_node->surface);
if (!xwayland_surface || xwayland_surface->override_redirect) {
return;
}
// ensure this node is entirely inside the update region. If not, we can't
// restack this node since we're not considering the whole thing.
if (wlr_box_contains_box(&data->update_box, box)) {
if (data->restack_above) {
wlr_xwayland_surface_restack(xwayland_surface, data->restack_above, XCB_STACK_MODE_BELOW);
} else {
wlr_xwayland_surface_restack(xwayland_surface, NULL, XCB_STACK_MODE_ABOVE);
}
}
data->restack_above = xwayland_surface;
}
#endif
static bool scene_node_update_iterator(struct wlr_scene_node *node,
int lx, int ly, void *_data) {
struct scene_update_data *data = _data;
@ -467,6 +510,9 @@ static bool scene_node_update_iterator(struct wlr_scene_node *node,
}
update_node_update_outputs(node, data->outputs, NULL, NULL);
#if WLR_HAS_XWAYLAND
restack_xwayland_surface(node, &box, data);
#endif
return false;
}