diff --git a/include/view.h b/include/view.h
index 6076d672..79963b4b 100644
--- a/include/view.h
+++ b/include/view.h
@@ -55,6 +55,8 @@ struct view_impl {
 	void (*minimize)(struct view *view, bool minimize);
 	void (*move_to_front)(struct view *view);
 	void (*move_to_back)(struct view *view);
+	struct view *(*get_root)(struct view *self);
+	void (*append_children)(struct view *self, struct wl_array *children);
 };
 
 struct view {
@@ -212,6 +214,8 @@ void view_snap_to_region(struct view *view, struct region *region, bool store_na
 
 void view_move_to_front(struct view *view);
 void view_move_to_back(struct view *view);
+struct view *view_get_root(struct view *view);
+void view_append_children(struct view *view, struct wl_array *children);
 
 const char *view_get_string_prop(struct view *view, const char *prop);
 void view_update_title(struct view *view);
diff --git a/src/view.c b/src/view.c
index 8b1f5743..4c72e13f 100644
--- a/src/view.c
+++ b/src/view.c
@@ -238,8 +238,8 @@ view_adjust_size(struct view *view, int *w, int *h)
 	*h = MAX(*h, LAB_MIN_VIEW_HEIGHT);
 }
 
-void
-view_minimize(struct view *view, bool minimized)
+static void
+_minimize(struct view *view, bool minimized)
 {
 	assert(view);
 	if (view->minimized == minimized) {
@@ -272,6 +272,40 @@ view_minimize(struct view *view, bool minimized)
 	}
 }
 
+static void
+minimize_sub_views(struct view *view, bool minimized)
+{
+	struct view **child;
+	struct wl_array children;
+
+	wl_array_init(&children);
+	view_append_children(view, &children);
+	wl_array_for_each(child, &children) {
+		_minimize(*child, minimized);
+		minimize_sub_views(*child, minimized);
+	}
+	wl_array_release(&children);
+}
+
+/*
+ * Minimize the whole view-hierarchy from top to bottom regardless of which one
+ * in the hierarchy requested the minimize. For example, if an 'About' or
+ * 'Open File' dialog is minimized, its toplevel is minimized also. And vice
+ * versa.
+ */
+void
+view_minimize(struct view *view, bool minimized)
+{
+	/*
+	 * Minimize the root window first because some xwayland clients send a
+	 * request-unmap to sub-windows at this point (for example gimp and its
+	 * 'open file' dialog), so it saves trying to unmap them twice
+	 */
+	struct view *root = view_get_root(view);
+	_minimize(root, minimized);
+	minimize_sub_views(root, minimized);
+}
+
 static bool
 view_compute_centered_position(struct view *view, const struct wlr_box *ref,
 		int w, int h, int *x, int *y)
@@ -1042,6 +1076,25 @@ view_move_to_back(struct view *view)
 	}
 }
 
+struct view *
+view_get_root(struct view *view)
+{
+	assert(view);
+	if (view->impl->get_root) {
+		return view->impl->get_root(view);
+	}
+	return view;
+}
+
+void
+view_append_children(struct view *view, struct wl_array *children)
+{
+	assert(view);
+	if (view->impl->append_children) {
+		view->impl->append_children(view, children);
+	}
+}
+
 const char *
 view_get_string_prop(struct view *view, const char *prop)
 {
diff --git a/src/xdg.c b/src/xdg.c
index c54796c5..7e557f50 100644
--- a/src/xdg.c
+++ b/src/xdg.c
@@ -335,6 +335,10 @@ enum z_direction {
 	LAB_TO_BACK,
 };
 
+/*
+ * TODO: Combine append_children() and move_sub_views() as much as possible.
+ * https://github.com/labwc/labwc/pull/998#discussion_r1284085575
+ */
 static void
 move_sub_views(struct view *parent, enum z_direction z_direction)
 {
@@ -371,7 +375,7 @@ move_sub_views(struct view *parent, enum z_direction z_direction)
 
 /* Return the most senior parent (=root) view */
 static struct view *
-root_view_of_view(struct view *view)
+xdg_toplevel_view_get_root(struct view *view)
 {
 	struct wlr_xdg_toplevel *root = top_parent_of(view);
 	struct wlr_xdg_surface *surface = (struct wlr_xdg_surface *)root->base;
@@ -387,7 +391,7 @@ root_view_of_view(struct view *view)
 static void
 xdg_toplevel_view_move_to_front(struct view *view)
 {
-	struct view *root = root_view_of_view(view);
+	struct view *root = xdg_toplevel_view_get_root(view);
 	view_impl_move_to_front(root);
 	move_sub_views(root, LAB_TO_FRONT);
 }
@@ -395,11 +399,36 @@ xdg_toplevel_view_move_to_front(struct view *view)
 static void
 xdg_toplevel_view_move_to_back(struct view *view)
 {
-	struct view *root = root_view_of_view(view);
+	struct view *root = xdg_toplevel_view_get_root(view);
 	view_impl_move_to_back(root);
 	move_sub_views(root, LAB_TO_BACK);
 }
 
+static void
+xdg_toplevel_view_append_children(struct view *self, struct wl_array *children)
+{
+	struct wlr_xdg_toplevel *toplevel = xdg_toplevel_from_view(self);
+	struct view *view;
+
+	wl_list_for_each_reverse(view, &self->server->views, link)
+	{
+		if (view == self) {
+			continue;
+		}
+		if (view->type != LAB_XDG_SHELL_VIEW) {
+			continue;
+		}
+		if (!view->mapped && !view->minimized) {
+			continue;
+		}
+		if (top_parent_of(view) != toplevel) {
+			continue;
+		}
+		struct view **child = wl_array_add(children, sizeof(*child));
+		*child = view;
+	}
+}
+
 static void
 xdg_toplevel_view_set_activated(struct view *view, bool activated)
 {
@@ -554,6 +583,8 @@ static const struct view_impl xdg_toplevel_view_impl = {
 	.minimize = xdg_toplevel_view_minimize,
 	.move_to_front = xdg_toplevel_view_move_to_front,
 	.move_to_back = xdg_toplevel_view_move_to_back,
+	.get_root = xdg_toplevel_view_get_root,
+	.append_children = xdg_toplevel_view_append_children,
 };
 
 void
diff --git a/src/xwayland.c b/src/xwayland.c
index 46e411b6..7aef5762 100644
--- a/src/xwayland.c
+++ b/src/xwayland.c
@@ -527,6 +527,10 @@ enum z_direction {
 	LAB_TO_BACK,
 };
 
+/*
+ * TODO: Combine append_children() and move_sub_views() as much as possible.
+ * https://github.com/labwc/labwc/pull/998#discussion_r1284085575
+ */
 static void
 move_sub_views(struct view *parent, enum z_direction z_direction)
 {
@@ -563,7 +567,7 @@ move_sub_views(struct view *parent, enum z_direction z_direction)
 }
 
 static struct view *
-root_view_of_view(struct view *view)
+xwayland_view_get_root(struct view *view)
 {
 	struct wlr_xwayland_surface *root = top_parent_of(view);
 	return (struct view *)root->data;
@@ -572,7 +576,7 @@ root_view_of_view(struct view *view)
 static void
 xwayland_view_move_to_front(struct view *view)
 {
-	struct view *root = root_view_of_view(view);
+	struct view *root = xwayland_view_get_root(view);
 	view_impl_move_to_front(root);
 	move_sub_views(root, LAB_TO_FRONT);
 }
@@ -580,11 +584,43 @@ xwayland_view_move_to_front(struct view *view)
 static void
 xwayland_view_move_to_back(struct view *view)
 {
-	struct view *root = root_view_of_view(view);
+	struct view *root = xwayland_view_get_root(view);
 	view_impl_move_to_back(root);
 	move_sub_views(root, LAB_TO_BACK);
 }
 
+static void
+xwayland_view_append_children(struct view *self, struct wl_array *children)
+{
+	struct wlr_xwayland_surface *surface = xwayland_surface_from_view(self);
+	struct view *view;
+
+	wl_list_for_each_reverse(view, &self->server->views, link)
+	{
+		if (view == self) {
+			continue;
+		}
+		if (view->type != LAB_XWAYLAND_VIEW) {
+			continue;
+		}
+		/*
+		 * This happens when a view has never been mapped or when a
+		 * client has requested a `handle_unmap`.
+		 */
+		if (!view->surface) {
+			continue;
+		}
+		if (!view->mapped && !view->minimized) {
+			continue;
+		}
+		if (top_parent_of(view) != surface) {
+			continue;
+		}
+		struct view **child = wl_array_add(children, sizeof(*child));
+		*child = view;
+	}
+}
+
 static void
 xwayland_view_set_activated(struct view *view, bool activated)
 {
@@ -628,6 +664,8 @@ static const struct view_impl xwayland_view_impl = {
 	.minimize = xwayland_view_minimize,
 	.move_to_front = xwayland_view_move_to_front,
 	.move_to_back = xwayland_view_move_to_back,
+	.get_root = xwayland_view_get_root,
+	.append_children = xwayland_view_append_children,
 };
 
 void