From eda0613cc4c657a4d4f0165aa8ccd75108545981 Mon Sep 17 00:00:00 2001 From: "Devin J. Pohly" Date: Sun, 25 Jun 2023 17:44:00 -0500 Subject: [PATCH] Separate drag icon from layers array and Lyr enum MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If we treat the drag icon as distinct from other layers (it doesn't have contents that are interactive, focusable, etc.), then we can iterate over layers meaningfully with a simple for loop. ΔSLOC: -8 --- dwl.c | 67 +++++++++++++++++++++++++++-------------------------------- 1 file changed, 31 insertions(+), 36 deletions(-) diff --git a/dwl.c b/dwl.c index da3a516..5a1b1b5 100644 --- a/dwl.c +++ b/dwl.c @@ -74,7 +74,7 @@ /* enums */ enum { CurNormal, CurPressed, CurMove, CurResize }; /* cursor */ enum { XDGShell, LayerShell, X11Managed, X11Unmanaged }; /* client types */ -enum { LyrBg, LyrBottom, LyrTop, LyrOverlay, LyrTile, LyrFloat, LyrFS, LyrDragIcon, LyrBlock, NUM_LAYERS }; /* scene layers */ +enum { LyrBg, LyrBottom, LyrTile, LyrFloat, LyrFS, LyrTop, LyrOverlay, LyrBlock, NUM_LAYERS }; /* scene layers */ #ifdef XWAYLAND enum { NetWMWindowTypeDialog, NetWMWindowTypeSplash, NetWMWindowTypeToolbar, NetWMWindowTypeUtility, NetLast }; /* EWMH atoms */ @@ -330,6 +330,8 @@ static struct wl_display *dpy; static struct wlr_backend *backend; static struct wlr_scene *scene; static struct wlr_scene_tree *layers[NUM_LAYERS]; +/* Map from ZWLR_LAYER_SHELL_* constants to Lyr* enum */ +static const int layermap[] = { LyrBg, LyrBottom, LyrTop, LyrOverlay }; static struct wlr_renderer *drw; static struct wlr_allocator *alloc; static struct wlr_compositor *compositor; @@ -736,17 +738,16 @@ commitlayersurfacenotify(struct wl_listener *listener, void *data) LayerSurface *layersurface = wl_container_of(listener, layersurface, surface_commit); struct wlr_layer_surface_v1 *wlr_layer_surface = layersurface->layer_surface; struct wlr_output *wlr_output = wlr_layer_surface->output; + struct wlr_scene_tree *layer = layers[layermap[wlr_layer_surface->current.layer]]; /* For some reason this layersurface have no monitor, this can be because * its monitor has just been destroyed */ if (!wlr_output || !(layersurface->mon = wlr_output->data)) return; - if (layers[wlr_layer_surface->current.layer] != layersurface->scene->node.parent) { - wlr_scene_node_reparent(&layersurface->scene->node, - layers[wlr_layer_surface->current.layer]); - wlr_scene_node_reparent(&layersurface->popups->node, - layers[wlr_layer_surface->current.layer]); + if (layer != layersurface->scene->node.parent) { + wlr_scene_node_reparent(&layersurface->scene->node, layer); + wlr_scene_node_reparent(&layersurface->popups->node, layer); wl_list_remove(&layersurface->link); wl_list_insert(&layersurface->mon->layers[wlr_layer_surface->current.layer], &layersurface->link); @@ -832,6 +833,7 @@ createlayersurface(struct wl_listener *listener, void *data) struct wlr_layer_surface_v1 *wlr_layer_surface = data; LayerSurface *layersurface; struct wlr_layer_surface_v1_state old_state; + struct wlr_scene_tree *l = layers[layermap[wlr_layer_surface->pending.layer]]; if (!wlr_layer_surface->output) wlr_layer_surface->output = selmon ? selmon->wlr_output : NULL; @@ -856,11 +858,9 @@ createlayersurface(struct wl_listener *listener, void *data) layersurface->mon = wlr_layer_surface->output->data; wlr_layer_surface->data = layersurface; - layersurface->scene_layer = wlr_scene_layer_surface_v1_create( - layers[wlr_layer_surface->pending.layer], wlr_layer_surface); + layersurface->scene_layer = wlr_scene_layer_surface_v1_create(l, wlr_layer_surface); layersurface->scene = layersurface->scene_layer->tree; - layersurface->popups = wlr_layer_surface->surface->data = - wlr_scene_tree_create(layers[wlr_layer_surface->pending.layer]); + layersurface->popups = wlr_layer_surface->surface->data = wlr_scene_tree_create(l); layersurface->scene->node.data = layersurface; @@ -2127,6 +2127,8 @@ setsel(struct wl_listener *listener, void *data) void setup(void) { + int layer; + /* Set up signal handlers */ struct sigaction sa = {.sa_flags = SA_RESTART, .sa_handler = sigchld}; sigemptyset(&sa.sa_mask); @@ -2153,15 +2155,8 @@ setup(void) /* Initialize the scene graph used to lay out windows */ scene = wlr_scene_create(); - layers[LyrBg] = wlr_scene_tree_create(&scene->tree); - layers[LyrBottom] = wlr_scene_tree_create(&scene->tree); - layers[LyrTile] = wlr_scene_tree_create(&scene->tree); - layers[LyrFloat] = wlr_scene_tree_create(&scene->tree); - layers[LyrFS] = wlr_scene_tree_create(&scene->tree); - layers[LyrTop] = wlr_scene_tree_create(&scene->tree); - layers[LyrOverlay] = wlr_scene_tree_create(&scene->tree); - layers[LyrDragIcon] = wlr_scene_tree_create(&scene->tree); - layers[LyrBlock] = wlr_scene_tree_create(&scene->tree); + for (layer = 0; layer < NUM_LAYERS; layer++) + layers[layer] = wlr_scene_tree_create(&scene->tree); /* Create a renderer with the default implementation */ if (!(drw = wlr_renderer_autocreate(backend))) @@ -2350,11 +2345,13 @@ void startdrag(struct wl_listener *listener, void *data) { struct wlr_drag *drag = data; + struct wlr_scene_tree *icon; if (!drag->icon) return; - drag->icon->data = wlr_scene_subsurface_tree_create(layers[LyrDragIcon], drag->icon->surface); + drag->icon->data = icon = wlr_scene_subsurface_tree_create(&scene->tree, drag->icon->surface); + wlr_scene_node_place_below(&icon->node, &layers[LyrBlock]->node); motionnotify(0); wl_signal_add(&drag->icon->events.destroy, &drag_icon_destroy); } @@ -2652,24 +2649,22 @@ xytonode(double x, double y, struct wlr_surface **psurface, struct wlr_surface *surface = NULL; Client *c = NULL; LayerSurface *l = NULL; - const int *layer; - int focus_order[] = { LyrBlock, LyrOverlay, LyrTop, LyrFS, LyrFloat, LyrTile, LyrBottom, LyrBg }; + int layer; - for (layer = focus_order; layer < END(focus_order); layer++) { - if ((node = wlr_scene_node_at(&layers[*layer]->node, x, y, nx, ny))) { - if (node->type == WLR_SCENE_NODE_BUFFER) - surface = wlr_scene_surface_from_buffer( - wlr_scene_buffer_from_node(node))->surface; - /* Walk the tree to find a node that knows the client */ - for (pnode = node; pnode && !c; pnode = &pnode->parent->node) - c = pnode->data; - if (c && c->type == LayerShell) { - c = NULL; - l = pnode->data; - } + for (layer = NUM_LAYERS - 1; !surface && layer >= 0; layer--) { + if (!(node = wlr_scene_node_at(&layers[layer]->node, x, y, nx, ny))) + continue; + + if (node->type == WLR_SCENE_NODE_BUFFER) + surface = wlr_scene_surface_from_buffer( + wlr_scene_buffer_from_node(node))->surface; + /* Walk the tree to find a node that knows the client */ + for (pnode = node; pnode && !c; pnode = &pnode->parent->node) + c = pnode->data; + if (c && c->type == LayerShell) { + c = NULL; + l = pnode->data; } - if (surface) - break; } if (psurface) *psurface = surface;