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node.c: add helpers for returning structs from node data

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Support returning the following structs:
  - view from LAB_NODE_DESC_VIEW or LAB_NODE_DESC_XDG_POPUP
  - lab_layer_surface form LAB_NODE_DESC_LAYER_SURFACE
  - lab_layer_popup from LAB_NODE_DESC_LAYER_POPUP
This commit is contained in:
Johan Malm 2022-03-02 22:05:41 +00:00
parent 30298228e3
commit b4cbc20e8c
3 changed files with 66 additions and 13 deletions
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44
include/node.h
View file

@ -3,12 +3,16 @@
#define __LABWC_NODE_DESCRIPTOR_H
#include <wlr/types/wlr_scene.h>
struct view;
struct lab_layer_surface;
struct lab_layer_popup;
enum node_descriptor_type {
LAB_NODE_DESC_NODE = 0,
LAB_NODE_DESC_VIEW, /* *data --> struct view */
LAB_NODE_DESC_XDG_POPUP, /* *data --> struct view */
LAB_NODE_DESC_LAYER_SURFACE, /* *data --> struct lab_layer_surface */
LAB_NODE_DESC_LAYER_POPUP, /* *data --> struct lab_layer_popup */
LAB_NODE_DESC_VIEW,
LAB_NODE_DESC_XDG_POPUP,
LAB_NODE_DESC_LAYER_SURFACE,
LAB_NODE_DESC_LAYER_POPUP,
};
struct node_descriptor {
@ -17,7 +21,37 @@ struct node_descriptor {
struct wl_listener destroy;
};
void node_descriptor_create(struct wlr_scene_node *node,
/**
* node_descriptor_create - create node descriptor for wlr_scene_node user_data
* @scene_node: wlr_scene_node to attached node_descriptor to
* @type: node descriptor type
* @data: struct to point to as follows:
* - LAB_NODE_DESC_VIEW struct view
* - LAB_NODE_DESC_XDG_POPUP struct view
* - LAB_NODE_DESC_LAYER_SURFACE struct lab_layer_surface
* - LAB_NODE_DESC_LAYER_POPUP struct lab_layer_popup
*/
void node_descriptor_create(struct wlr_scene_node *scene_node,
enum node_descriptor_type type, void *data);
/**
* node_view_from_node - return view struct from node
* @node_descriptor: node_descriptor from which to return data
*/
struct view *node_view_from_node(struct node_descriptor *node_descriptor);
/**
* node_lab_surface_from_node - return lab_layer_surface struct from node
* @node_descriptor: node_descriptor from which to return data
*/
struct lab_layer_surface *node_layer_surface_from_node(
struct node_descriptor *node_descriptor);
/**
* node_layer_popup_from_node - return lab_layer_popup struct from node
* @node_descriptor: node_descriptor from which to return data
*/
struct lab_layer_popup *node_layer_popup_from_node(
struct node_descriptor *node_descriptor);
#endif /* __LABWC_NODE_DESCRIPTOR_H */