layers: put popups in separate node-tree

This allows popups to be rendered above views and other layers. Without
this, the popups of a layer-shell application in the bottom layer would
render below views, which does not seem right. For example, consider the
case of a panel with right-click popups.
This commit is contained in:
Johan Malm 2022-03-03 17:56:38 +00:00
parent 34bd1fb6da
commit 6fd400b493
3 changed files with 36 additions and 7 deletions

View file

@ -196,6 +196,7 @@ struct output {
struct wlr_scene_output *scene_output;
struct wl_list layers[LAB_NR_LAYERS];
struct wlr_scene_tree *layer_tree[LAB_NR_LAYERS];
struct wlr_scene_tree *layer_popup_tree;
struct wlr_box usable_area;
struct lab_data_buffer *osd_buffer;

View file

@ -247,12 +247,6 @@ create_popup(struct wlr_xdg_popup *wlr_popup, struct wlr_scene_node *parent)
popup->new_popup.notify = popup_handle_new_popup;
wl_signal_add(&wlr_popup->base->events.new_popup, &popup->new_popup);
/*
* FIXME: should we put popups in ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY
* or a dedicated output->layer_popup_tree - so that for example
* a panel in the bottom layer displays any popup above views.
*/
popup_unconstrain(popup);
return popup;
}
@ -272,7 +266,24 @@ new_popup_notify(struct wl_listener *listener, void *data)
struct lab_layer_surface *lab_layer_surface =
wl_container_of(listener, lab_layer_surface, new_popup);
struct wlr_xdg_popup *wlr_popup = data;
create_popup(wlr_popup, lab_layer_surface->scene_layer_surface->node);
/*
* We always put popups in a special popup_tree so that for example a
* panel in the bottom layer displays popups above views.
*/
struct server *server = lab_layer_surface->server;
struct wlr_output *wlr_output =
lab_layer_surface->scene_layer_surface->layer_surface->output;
struct output *output = output_from_wlr_output(server, wlr_output);
struct wlr_scene_node *node = &output->layer_popup_tree->node;
create_popup(wlr_popup, node);
struct wlr_box box = { 0 };
wlr_output_layout_get_box(server->output_layout, wlr_output, &box);
box.x += lab_layer_surface->scene_layer_surface->node->state.x;
box.y += lab_layer_surface->scene_layer_surface->node->state.y;
wlr_scene_node_set_position(node, box.x, box.y);
}
static void

View file

@ -111,6 +111,10 @@ new_output_notify(struct wl_listener *listener, void *data)
output->frame.notify = output_frame_notify;
wl_signal_add(&wlr_output->events.frame, &output->frame);
/*
* Create layer-trees (background, bottom, top and overlay) and
* a layer-popup-tree.
*/
int nr_layers = sizeof(output->layers) / sizeof(output->layers[0]);
for (int i = 0; i < nr_layers; i++) {
wl_list_init(&output->layers[i]);
@ -118,10 +122,23 @@ new_output_notify(struct wl_listener *listener, void *data)
wlr_scene_tree_create(&server->scene->node);
output->layer_tree[i]->node.data = output->wlr_output;
}
output->layer_popup_tree = wlr_scene_tree_create(&server->scene->node);
/*
* Set the z-positions to achieve the following order (from top to
* bottom):
* - layer-shell popups
* - overlay layer
* - top layer
* - views
* - bottom layer
* - background layer
*/
wlr_scene_node_lower_to_bottom(&output->layer_tree[1]->node);
wlr_scene_node_lower_to_bottom(&output->layer_tree[0]->node);
wlr_scene_node_raise_to_top(&output->layer_tree[2]->node);
wlr_scene_node_raise_to_top(&output->layer_tree[3]->node);
wlr_scene_node_raise_to_top(&output->layer_popup_tree->node);
if (rc.adaptive_sync) {
wlr_log(WLR_INFO, "enable adaptive sync on %s",