94 lines
3.3 KiB
C
94 lines
3.3 KiB
C
#include <stdlib.h>
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#include "wlr/types/wlr_compositor.h"
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#include <wlr/types/wlr_scene.h>
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#include <wlr/types/wlr_data_device.h>
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struct wlr_scene_drag_icon {
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struct wlr_scene_tree *tree;
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struct wlr_scene_tree *surface_tree;
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struct wlr_drag_icon *drag_icon;
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struct wl_listener tree_destroy;
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struct wl_listener drag_icon_surface_commit;
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struct wl_listener drag_icon_surface_map;
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struct wl_listener drag_icon_surface_unmap;
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struct wl_listener drag_icon_destroy;
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};
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static void drag_icon_handle_surface_commit(struct wl_listener *listener, void *data) {
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struct wlr_scene_drag_icon *icon =
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wl_container_of(listener, icon, drag_icon_surface_commit);
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struct wlr_surface *surface = icon->drag_icon->surface;
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struct wlr_scene_node *node = &icon->surface_tree->node;
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wlr_scene_node_set_position(node,
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node->x + surface->current.dx, node->y + surface->current.dy);
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}
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static void drag_icon_handle_surface_map(struct wl_listener *listener, void *data) {
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struct wlr_scene_drag_icon *icon =
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wl_container_of(listener, icon, drag_icon_surface_map);
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wlr_scene_node_set_enabled(&icon->tree->node, true);
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}
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static void drag_icon_handle_surface_unmap(struct wl_listener *listener, void *data) {
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struct wlr_scene_drag_icon *icon =
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wl_container_of(listener, icon, drag_icon_surface_unmap);
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wlr_scene_node_set_enabled(&icon->tree->node, false);
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}
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static void drag_icon_handle_tree_destroy(struct wl_listener *listener, void *data) {
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struct wlr_scene_drag_icon *icon =
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wl_container_of(listener, icon, tree_destroy);
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wl_list_remove(&icon->tree_destroy.link);
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wl_list_remove(&icon->drag_icon_surface_commit.link);
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wl_list_remove(&icon->drag_icon_surface_map.link);
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wl_list_remove(&icon->drag_icon_surface_unmap.link);
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wl_list_remove(&icon->drag_icon_destroy.link);
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free(icon);
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}
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static void drag_icon_handle_destroy(struct wl_listener *listener, void *data) {
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struct wlr_scene_drag_icon *icon =
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wl_container_of(listener, icon, drag_icon_destroy);
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wlr_scene_node_destroy(&icon->tree->node);
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}
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struct wlr_scene_tree *wlr_scene_drag_icon_create(
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struct wlr_scene_tree *parent, struct wlr_drag_icon *drag_icon) {
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struct wlr_scene_drag_icon *icon = calloc(1, sizeof(*icon));
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if (!icon) {
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return NULL;
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}
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icon->drag_icon = drag_icon;
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icon->tree = wlr_scene_tree_create(parent);
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if (!icon->tree) {
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free(icon);
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return NULL;
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}
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icon->surface_tree = wlr_scene_subsurface_tree_create(
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icon->tree, drag_icon->surface);
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if (!icon->surface_tree) {
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wlr_scene_node_destroy(&icon->tree->node);
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free(icon);
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return NULL;
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}
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wlr_scene_node_set_enabled(&icon->tree->node, drag_icon->surface->mapped);
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icon->tree_destroy.notify = drag_icon_handle_tree_destroy;
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wl_signal_add(&icon->tree->node.events.destroy, &icon->tree_destroy);
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icon->drag_icon_surface_commit.notify = drag_icon_handle_surface_commit;
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wl_signal_add(&drag_icon->surface->events.commit, &icon->drag_icon_surface_commit);
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icon->drag_icon_surface_map.notify = drag_icon_handle_surface_map;
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wl_signal_add(&drag_icon->surface->events.map, &icon->drag_icon_surface_map);
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icon->drag_icon_surface_unmap.notify = drag_icon_handle_surface_unmap;
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wl_signal_add(&drag_icon->surface->events.unmap, &icon->drag_icon_surface_unmap);
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icon->drag_icon_destroy.notify = drag_icon_handle_destroy;
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wl_signal_add(&drag_icon->events.destroy, &icon->drag_icon_destroy);
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return icon->tree;
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}
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