clipmenud: Allow specifying which selections to own

This will supplant the old CM_SYNC_* options.

src/clipmenud.c

@@ -263,7 +263,7 @@ static int handle_property_notify(const XPropertyEvent *pe) {
          */
         enum selection_type sel =
             storage_atom_to_selection_type(pe->atom, sels);
-        if (sel == CM_SEL_CLIPBOARD && cfg.own_clipboard) {
+        if (cfg.owned_selections[sel].active && cfg.own_clipboard) {
             run_clipserve(hash);
         }
     } else {

src/config.c

@@ -272,6 +272,8 @@ int config_setup_internal(FILE *file, struct config *cfg) {
          "0", 0},
         {"selections", "CM_SELECTIONS", &cfg->selections, convert_selections,
          "clipboard primary", 0},
+        {"own_selections", "CM_OWN_SELECTIONS", &cfg->owned_selections,
+         convert_selections, "clipboard", 0},
         {"ignore_window", "CM_IGNORE_WINDOW", &cfg->ignore_window,
          convert_ignore_window, NULL, 0},
         {"launcher", "CM_LAUNCHER", &cfg->launcher, convert_launcher, "dmenu",
@@ -307,6 +309,7 @@ void config_free(struct config *cfg) {
     free(cfg->runtime_dir);
     free(cfg->launcher.custom);
     free(cfg->selections);
+    free(cfg->owned_selections);
     if (cfg->ignore_window.set) {
         regfree(&cfg->ignore_window.rgx);
     }

src/config.h

@@ -44,6 +44,7 @@ struct config {
     int max_clips_batch;
     int oneshot;
     bool own_clipboard;
+    struct selection *owned_selections;
     struct selection *selections;
     struct ignore_window ignore_window;
     struct launcher launcher;