2 files changed, 25 insertions, 1 deletions
diff --git a/src/platform/freedesktop/dbus.c b/src/platform/freedesktop/dbus.c
index abca900..484b987 100644
--- a/src/platform/freedesktop/dbus.c
+++ b/src/platform/freedesktop/dbus.c
@@ -4,6 +4,7 @@
 #if YASL_HAS_DBUS
 
 #include <dbus/dbus.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -116,6 +117,15 @@ static bool iter_int(DBusMessageIter *it, int64_t *out)
     }
     DBusBasicValue v;
     switch (dbus_message_iter_get_arg_type(it)) {
+    case DBUS_TYPE_STRING: {
+        dbus_message_iter_get_basic(it, &v);
+        char *end;
+        errno = 0;
+        long long n = strtoll(v.str, &end, 10);
+        if (errno || end == v.str || *end) return false;
+        *out = n;
+        return true;
+    }
     case DBUS_TYPE_BYTE: dbus_message_iter_get_basic(it, &v); *out = v.byt; return true;
     case DBUS_TYPE_BOOLEAN: dbus_message_iter_get_basic(it, &v); *out = v.bool_val; return true;
     case DBUS_TYPE_INT16: dbus_message_iter_get_basic(it, &v); *out = v.i16; return true;
@@ -185,3 +195,14 @@ bool portal_read_int(const char *ns, const char *key, int64_t *out)
 }
 
 #endif
+
+int portal_double_click_ms(void)
+{
+    /* kdeglobals holds only values the user changed, so a KDE answer is
+     * deliberate; the GNOME key can be a default from another portal backend. */
+    int64_t ms;
+    if (portal_read_int("org.kde.kdeglobals.KDE", "DoubleClickInterval", &ms) ||
+        portal_read_int("org.gnome.desktop.peripherals.mouse", "double-click", &ms))
+        return ms > 0 && ms <= INT32_MAX ? (int)ms : 0;
+    return 0;
+}
diff --git a/src/platform/freedesktop/dbus.h b/src/platform/freedesktop/dbus.h
index 3b1662b..fd0aeb1 100644
--- a/src/platform/freedesktop/dbus.h
+++ b/src/platform/freedesktop/dbus.h
@@ -10,7 +10,10 @@
 
 /* Send org.freedesktop.Notifications.Notify without waiting for a reply. */
 bool bus_notify(const char *app, const char *title, const char *body);
-/* Read an integer setting through the XDG Settings portal, waiting briefly. */
+/* Read an integer setting through the XDG Settings portal, waiting briefly.
+ * A string holding a decimal integer also counts, as KDE reports them. */
 bool portal_read_int(const char *ns, const char *key, int64_t *out);
+/* The KDE or GNOME double-click interval from the portal, or zero. */
+int portal_double_click_ms(void);
 
 #endif