icon-loader: add a log handler for sfdo messages

Useful for debugging why an icon isn't being loaded.

v2: suggestions from @tokyo4j

diff --git a/src/icon-loader.c b/src/icon-loader.c
index 83d91c5045603be55edc2e6fd72255f358769628..20cc9b6232d07719e2df14af8cc07ffe2eb40f61 100644 (file)
--- a/src/icon-loader.c
+++ b/src/icon-loader.c
@@ -25,6 +25,19 @@ struct icon_loader {
        struct sfdo_icon_theme *icon_theme;
 };
 
+static void
+log_handler(enum sfdo_log_level level, const char *fmt, va_list args, void *tag)
+{
+       /* add a prefix if the format length is reasonable */
+       char buf[256];
+       if (snprintf(buf, sizeof(buf), "[%s] %s", (const char *)tag, fmt)
+                       < (int)sizeof(buf)) {
+               fmt = buf;
+       }
+       /* sfdo_log_level and wlr_log_importance are compatible */
+       _wlr_vlog((enum wlr_log_importance)level, fmt, args);
+}
+
 void
 icon_loader_init(struct server *server)
 {
@@ -42,6 +55,15 @@ icon_loader_init(struct server *server)
        if (!loader->icon_ctx) {
                goto err_icon_ctx;
        }
+
+       /* sfdo_log_level and wlr_log_importance are compatible */
+       enum sfdo_log_level level =
+               (enum sfdo_log_level)wlr_log_get_verbosity();
+       sfdo_desktop_ctx_set_log_handler(
+               loader->desktop_ctx, level, log_handler, "sfdo-desktop");
+       sfdo_icon_ctx_set_log_handler(
+               loader->icon_ctx, level, log_handler, "sfdo-icon");
+
        loader->desktop_db = sfdo_desktop_db_load(loader->desktop_ctx, NULL);
        if (!loader->desktop_db) {
                goto err_desktop_db;