diff options
-rw-r--r-- | include/sway/scene_descriptor.h | 25 | ||||
-rw-r--r-- | sway/meson.build | 1 | ||||
-rw-r--r-- | sway/scene_descriptor.c | 66 |
3 files changed, 92 insertions, 0 deletions
diff --git a/include/sway/scene_descriptor.h b/include/sway/scene_descriptor.h new file mode 100644 index 00000000..13ae81a3 --- /dev/null +++ b/include/sway/scene_descriptor.h | |||
@@ -0,0 +1,25 @@ | |||
1 | /** | ||
2 | * Across a wayland compositor, there are multiple shells: It can be | ||
3 | * a toplevel, or a layer_shell, or even something more meta like a drag | ||
4 | * icon or highlight indicators when dragging windows around. | ||
5 | * | ||
6 | * This object lets us store values that represent these modes of operation | ||
7 | * and keep track of what object is being represented. | ||
8 | */ | ||
9 | #ifndef _SWAY_SCENE_DESCRIPTOR_H | ||
10 | #define _SWAY_SCENE_DESCRIPTOR_H | ||
11 | #include <wlr/types/wlr_scene.h> | ||
12 | |||
13 | enum sway_scene_descriptor_type { | ||
14 | }; | ||
15 | |||
16 | bool scene_descriptor_assign(struct wlr_scene_node *node, | ||
17 | enum sway_scene_descriptor_type type, void *data); | ||
18 | |||
19 | void *scene_descriptor_try_get(struct wlr_scene_node *node, | ||
20 | enum sway_scene_descriptor_type type); | ||
21 | |||
22 | void scene_descriptor_destroy(struct wlr_scene_node *node, | ||
23 | enum sway_scene_descriptor_type type); | ||
24 | |||
25 | #endif | ||
diff --git a/sway/meson.build b/sway/meson.build index 3abd778d..26251e58 100644 --- a/sway/meson.build +++ b/sway/meson.build | |||
@@ -8,6 +8,7 @@ sway_sources = files( | |||
8 | 'lock.c', | 8 | 'lock.c', |
9 | 'main.c', | 9 | 'main.c', |
10 | 'realtime.c', | 10 | 'realtime.c', |
11 | 'scene_descriptor.c', | ||
11 | 'server.c', | 12 | 'server.c', |
12 | 'swaynag.c', | 13 | 'swaynag.c', |
13 | 'xdg_activation_v1.c', | 14 | 'xdg_activation_v1.c', |
diff --git a/sway/scene_descriptor.c b/sway/scene_descriptor.c new file mode 100644 index 00000000..a30d4664 --- /dev/null +++ b/sway/scene_descriptor.c | |||
@@ -0,0 +1,66 @@ | |||
1 | #include <stdlib.h> | ||
2 | #include <wlr/util/addon.h> | ||
3 | #include "log.h" | ||
4 | #include "sway/scene_descriptor.h" | ||
5 | |||
6 | struct scene_descriptor { | ||
7 | void *data; | ||
8 | struct wlr_addon addon; | ||
9 | }; | ||
10 | |||
11 | static const struct wlr_addon_interface addon_interface; | ||
12 | |||
13 | static struct scene_descriptor *scene_node_get_descriptor( | ||
14 | struct wlr_scene_node *node, enum sway_scene_descriptor_type type) { | ||
15 | struct wlr_addon *addon = wlr_addon_find(&node->addons, (void *)type, &addon_interface); | ||
16 | if (!addon) { | ||
17 | return NULL; | ||
18 | } | ||
19 | |||
20 | struct scene_descriptor *desc = wl_container_of(addon, desc, addon); | ||
21 | return desc; | ||
22 | } | ||
23 | |||
24 | static void descriptor_destroy(struct scene_descriptor *desc) { | ||
25 | wlr_addon_finish(&desc->addon); | ||
26 | free(desc); | ||
27 | } | ||
28 | |||
29 | void *scene_descriptor_try_get(struct wlr_scene_node *node, | ||
30 | enum sway_scene_descriptor_type type) { | ||
31 | struct scene_descriptor *desc = scene_node_get_descriptor(node, type); | ||
32 | if (!desc) { | ||
33 | return NULL; | ||
34 | } | ||
35 | |||
36 | return desc->data; | ||
37 | } | ||
38 | |||
39 | void scene_descriptor_destroy(struct wlr_scene_node *node, | ||
40 | enum sway_scene_descriptor_type type) { | ||
41 | struct scene_descriptor *desc = scene_node_get_descriptor(node, type); | ||
42 | descriptor_destroy(desc); | ||
43 | } | ||
44 | |||
45 | static void addon_handle_destroy(struct wlr_addon *addon) { | ||
46 | struct scene_descriptor *desc = wl_container_of(addon, desc, addon); | ||
47 | descriptor_destroy(desc); | ||
48 | } | ||
49 | |||
50 | static const struct wlr_addon_interface addon_interface = { | ||
51 | .name = "sway_scene_descriptor", | ||
52 | .destroy = addon_handle_destroy, | ||
53 | }; | ||
54 | |||
55 | bool scene_descriptor_assign(struct wlr_scene_node *node, | ||
56 | enum sway_scene_descriptor_type type, void *data) { | ||
57 | struct scene_descriptor *desc = calloc(1, sizeof(*desc)); | ||
58 | if (!desc) { | ||
59 | sway_log(SWAY_ERROR, "Could not allocate a scene descriptor"); | ||
60 | return false; | ||
61 | } | ||
62 | |||
63 | wlr_addon_init(&desc->addon, &node->addons, (void *)type, &addon_interface); | ||
64 | desc->data = data; | ||
65 | return true; | ||
66 | } | ||