feat: add SDL3-style surface, display, and loop timer API for X11, Wayland, and Cocoa

1 files changed, 30 insertions, 5 deletions

diff --git a/src/x11/window.c b/src/x11/window.c
index e40db6e..2d9aff3 100644
--- a/src/x11/window.c
+++ b/src/x11/window.c
@@ -549,9 +549,13 @@ static int dispatch_timeout(struct yasl_display *base, int timeout_ms)
     struct x11_display *d = (struct x11_display *)base;
     if (unlikely(!d || !d->native)) return -1;
     dispatch(base);
-    if (!XPending(d->native) && d->loop && timeout_ms != 0) {
-        yasl_loop_step(d->loop, timeout_ms);
-        dispatch(base);
+    if (d->loop) {
+        if (!XPending(d->native) && timeout_ms != 0) {
+            yasl_loop_step(d->loop, timeout_ms);
+            dispatch(base);
+        } else {
+            yasl_loop_step(d->loop, 0);
+        }
     }
     return 0;
 }
@@ -572,6 +576,7 @@ static struct yasl_display *display_open(struct yasl_loop *loop,
     } else {
         d->loop = loop;
     }
+    d->base.loop = d->loop;
     d->app_id = strdup(spec && spec->app_id ? spec->app_id : "YASL");
     if (!d->loop || !d->app_id) {
         if (d->owns_loop) yasl_loop_destroy(d->loop);
@@ -617,7 +622,11 @@ static void display_close(struct yasl_display *base)
     assert(!d->surfaces && "destroy every surface before its display");
     cancel_pastes(d, NULL);
     if (d->loop && d->watch > 0) yasl_loop_del_fd(d->loop, d->watch);
-    if (d->owns_loop && d->loop) yasl_loop_destroy(d->loop);
+    if (d->owns_loop && d->loop) {
+        yasl_loop_destroy(d->loop);
+        d->loop = NULL;
+        d->base.loop = NULL;
+    }
     if (d->im) XCloseIM(d->im);
     XDestroyWindow(d->native, d->selection_window);
     XCloseDisplay(d->native);
@@ -757,12 +766,28 @@ static bool interactive_move(struct yasl_surface *base)
     return true;
 }
 
+static void display_dispatch(struct yasl_display *base)
+{
+    struct x11_display *d = (struct x11_display *)base;
+    if (unlikely(!d || !d->native)) return;
+    bool immediate = false;
+    for (struct x11_surface *s = d->surfaces; s; s = s->next) {
+        if (s->want_draw || s->input.count > 0 || s->input.reset_pending) {
+            immediate = true;
+            break;
+        }
+    }
+    if (d->loop && yasl_loop_is_running(d->loop))
+        immediate = true;
+    dispatch_timeout(base, immediate ? 0 : -1);
+}
+
 const struct yasl_backend_ops yasl_x11_backend = {
     .type = YASL_BACKEND_X11,
     .display_open = display_open,
     .display_close = display_close,
     .display_caps = caps,
-    .display_dispatch = dispatch,
+    .display_dispatch = display_dispatch,
     .display_dispatch_timeout = dispatch_timeout,
     .display_flush = flush,
     .display_modifiers = mods,