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layers: fix layer_popup_tree implementation

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This commit is contained in:
Johan Malm 2022-03-06 16:48:39 +00:00
parent 77ac3474b6
commit 852a6f02fa
2 changed files with 64 additions and 66 deletions
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3
include/layers.h
View file

@ -28,6 +28,9 @@ struct lab_layer_popup {
struct wlr_xdg_popup *wlr_popup;
struct wlr_scene_node *scene_node;
/* To simplify moving popup nodes from the bottom to the top layer */
struct wlr_box output_toplevel_sx_box;
struct wl_listener destroy;
struct wl_listener new_popup;
};

127
src/layers.c
View file

@ -164,22 +164,6 @@ map_notify(struct wl_listener *listener, void *data)
wlr_surface_send_enter(layer_surface->surface, layer_surface->output);
}
static struct
lab_layer_surface *popup_get_layer(struct lab_layer_popup *popup)
{
struct wlr_scene_node *node = popup->scene_node;
while (node) {
if (node->data) {
struct node_descriptor *desc = node->data;
if (desc->type == LAB_NODE_DESC_LAYER_SURFACE) {
return desc->data;
}
}
node = node->parent;
}
return NULL;
}
static void
popup_handle_destroy(struct wl_listener *listener, void *data)
{
@ -190,41 +174,11 @@ popup_handle_destroy(struct wl_listener *listener, void *data)
free(popup);
}
static void
popup_unconstrain(struct lab_layer_popup *popup)
{
struct lab_layer_surface *layer = popup_get_layer(popup);
if (!layer) {
return;
}
struct wlr_xdg_popup *wlr_popup = popup->wlr_popup;
struct output *output =
layer->scene_layer_surface->layer_surface->output->data;
struct wlr_box output_box = { 0 };
wlr_output_layout_get_box(output->server->output_layout,
output->wlr_output, &output_box);
int lx, ly;
wlr_scene_node_coords(popup->scene_node, &lx, &ly);
/*
* Output geometry expressed in the coordinate system of the toplevel
* parent of popup
*/
struct wlr_box output_toplevel_sx_box = {
.x = output_box.x - lx,
.y = output_box.y - ly,
.width = output_box.width,
.height = output_box.height,
};
wlr_xdg_popup_unconstrain_from_box(wlr_popup, &output_toplevel_sx_box);
}
static void popup_handle_new_popup(struct wl_listener *listener, void *data);
static struct lab_layer_popup *
create_popup(struct wlr_xdg_popup *wlr_popup, struct wlr_scene_node *parent)
create_popup(struct wlr_xdg_popup *wlr_popup, struct wlr_scene_node *parent,
struct wlr_box *output_toplevel_sx_box)
{
struct lab_layer_popup *popup =
calloc(1, sizeof(struct lab_layer_popup));
@ -247,43 +201,84 @@ 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);
popup_unconstrain(popup);
wlr_xdg_popup_unconstrain_from_box(wlr_popup, output_toplevel_sx_box);
return popup;
}
/* This popup's parent is a layer popup */
static void
popup_handle_new_popup(struct wl_listener *listener, void *data)
{
struct lab_layer_popup *lab_layer_popup =
wl_container_of(listener, lab_layer_popup, new_popup);
struct wlr_xdg_popup *wlr_popup = data;
create_popup(wlr_popup, lab_layer_popup->scene_node);
struct lab_layer_popup *new_popup = create_popup(wlr_popup,
lab_layer_popup->scene_node,
&lab_layer_popup->output_toplevel_sx_box);
new_popup->output_toplevel_sx_box =
lab_layer_popup->output_toplevel_sx_box;
}
/*
* We move popups from the bottom to the top layer so that they are
* rendered above views.
*/
static void
move_popup_to_top_layer(struct lab_layer_surface *toplevel,
struct lab_layer_popup *popup)
{
struct server *server = toplevel->server;
struct wlr_output *wlr_output =
toplevel->scene_layer_surface->layer_surface->output;
struct output *output = output_from_wlr_output(server, wlr_output);
struct wlr_box box = { 0 };
wlr_output_layout_get_box(server->output_layout, wlr_output, &box);
int lx = toplevel->scene_layer_surface->node->state.x + box.x;
int ly = toplevel->scene_layer_surface->node->state.y + box.y;
struct wlr_scene_node *node = popup->scene_node;
wlr_scene_node_reparent(node, &output->layer_popup_tree->node);
wlr_scene_node_set_position(&output->layer_popup_tree->node, lx, ly);
}
/* This popup's parent is a shell-layer surface */
static void
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 lab_layer_surface *toplevel =
wl_container_of(listener, toplevel, new_popup);
struct wlr_xdg_popup *wlr_popup = data;
struct output *output =
toplevel->scene_layer_surface->layer_surface->output->data;
struct wlr_box output_box = { 0 };
wlr_output_layout_get_box(output->server->output_layout,
output->wlr_output, &output_box);
int lx, ly;
wlr_scene_node_coords(toplevel->scene_layer_surface->node, &lx, &ly);
/*
* We always put popups in a special popup_tree so that for example a
* panel in the bottom layer displays popups above views.
* Output geometry expressed in the coordinate system of the toplevel
* parent of popup. We store this struct the lab_layer_popup struct
* to make it easier to unconstrain children when we move popups from
* the bottom to the top layer.
*/
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;
struct wlr_box output_toplevel_sx_box = {
.x = output_box.x - lx,
.y = output_box.y - ly,
.width = output_box.width,
.height = output_box.height,
};
struct lab_layer_popup *popup = create_popup(wlr_popup,
toplevel->scene_layer_surface->node,
&output_toplevel_sx_box);
popup->output_toplevel_sx_box = output_toplevel_sx_box;
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);
if (toplevel->scene_layer_surface->layer_surface->current.layer
== ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM) {
move_popup_to_top_layer(toplevel, popup);
}
}
static void