apprt: all implement close surface

src/Surface.zig

@@ -482,9 +482,9 @@ pub fn deinit(self: *Surface) void {
 /// Close this surface. This will trigger the runtime to start the
 /// close process, which should ultimately deinitialize this surface.
 pub fn close(self: *Surface) void {
-    if (@hasDecl(apprt.Surface, "closeSurface")) {
+    if (@hasDecl(apprt.Surface, "close")) {
-        try self.rt_surface.closeSurface();
+        self.rt_surface.close();
-    } else log.warn("runtime doesn't implement closeSurface", .{});
+    } else log.warn("runtime doesn't implement close", .{});
 }
 
 /// Called from the app thread to handle mailbox messages to our specific

src/apprt/embedded.zig

@@ -167,7 +167,7 @@ pub const Surface = struct {
         func(self.opts.userdata, direction);
     }
 
-    pub fn closeSurface(self: *const Surface) !void {
+    pub fn close(self: *const Surface) void {
         const func = self.app.opts.close_surface orelse {
             log.info("runtime embedder does not support closing a surface", .{});
             return;

src/apprt/glfw.zig

@@ -378,6 +378,11 @@ pub const Surface = struct {
         try self.app.newTab(&self.core_surface);
     }
 
+    /// Close this surface.
+    pub fn close(self: *const Surface) void {
+        self.window.setShouldClose(true);
+    }
+
     /// Set the size limits of the window.
     /// Note: this interface is not good, we should redo it if we plan
     /// to use this more. i.e. you can't set max width but no max height,

src/apprt/gtk.zig

@@ -614,7 +614,7 @@ pub const Surface = struct {
     }
 
     /// Close this surface.
-    fn close(self: *Surface) void {
+    pub fn close(self: *Surface) void {
         self.window.closeSurface(self);
     }