swaybar: implement icon themes and lookup for tray

2 files changed, 48 insertions, 0 deletions

diff --git a/include/swaybar/tray/icon.h b/include/swaybar/tray/icon.h
new file mode 100644
index 00000000..7a6c400c
--- /dev/null
+++ b/include/swaybar/tray/icon.h
@@ -0,0 +1,44 @@
+#ifndef _SWAYBAR_TRAY_ICON_H
+#define _SWAYBAR_TRAY_ICON_H
+
+#include "list.h"
+
+enum subdir_type {
+        THRESHOLD,
+        SCALABLE,
+        FIXED
+};
+
+struct icon_theme_subdir {
+        char *name;
+        int size;
+        enum subdir_type type;
+        int max_size;
+        int min_size;
+        int threshold;
+};
+
+struct icon_theme {
+        char *name;
+        char *comment;
+        char *inherits;
+        list_t *directories; // char *
+
+        char *dir;
+        list_t *subdirs; // struct icon_theme_subdir *
+};
+
+void init_themes(list_t **themes, list_t **basedirs);
+void finish_themes(list_t *themes, list_t *basedirs);
+
+/*
+ * Finds an icon of a specified size given a list of themes and base directories.
+ * If the icon is found, the pointers min_size & max_size are set to minimum &
+ * maximum size that the icon can be scaled to, respectively.
+ * Returns: path of icon (which should be freed), or NULL if the icon is not found.
+ */
+char *find_icon(list_t *themes, list_t *basedirs, char *name, int size,
+                char *theme, int *min_size, int *max_size);
+char *find_icon_in_dir(char *name, char *dir, int *min_size, int *max_size);
+
+#endif
diff --git a/include/swaybar/tray/tray.h b/include/swaybar/tray/tray.h
index cc3e8133..8e15fb86 100644
--- a/include/swaybar/tray/tray.h
+++ b/include/swaybar/tray/tray.h
@@ -9,6 +9,7 @@
 #endif
 #include <cairo.h>
 #include <stdint.h>
+#include "list.h"
 
 struct swaybar;
 struct swaybar_output;
@@ -22,6 +23,9 @@ struct swaybar_tray {
 
         struct swaybar_watcher *watcher_xdg;
         struct swaybar_watcher *watcher_kde;
+
+        list_t *basedirs; // char *
+        list_t *themes; // struct swaybar_theme *
 };
 
 struct swaybar_tray *create_tray(struct swaybar *bar);