use std::cell::{Cell, Ref, RefCell};
use std::time::Duration;
use niri_config::{Color, CornerRadius, GradientInterpolation, WindowRule};
use smithay::backend::renderer::element::surface::render_elements_from_surface_tree;
use smithay::backend::renderer::element::Kind;
use smithay::backend::renderer::gles::GlesRenderer;
use smithay::desktop::space::SpaceElement as _;
use smithay::desktop::{PopupManager, Window};
use smithay::output::{self, Output};
use smithay::reexports::wayland_protocols::xdg::decoration::zv1::server::zxdg_toplevel_decoration_v1;
use smithay::reexports::wayland_protocols::xdg::shell::server::xdg_toplevel;
use smithay::reexports::wayland_server::protocol::wl_surface::WlSurface;
use smithay::reexports::wayland_server::Resource as _;
use smithay::utils::{Logical, Point, Rectangle, Scale, Serial, Size, Transform};
use smithay::wayland::compositor::{remove_pre_commit_hook, with_states, HookId, SurfaceData};
use smithay::wayland::seat::WaylandFocus;
use smithay::wayland::shell::xdg::{
SurfaceCachedState, ToplevelCachedState, ToplevelConfigure, ToplevelSurface,
XdgToplevelSurfaceData,
};
use wayland_backend::server::Credentials;
use super::{ResolvedWindowRules, WindowRef};
use crate::handlers::KdeDecorationsModeState;
use crate::layout::{
ConfigureIntent, InteractiveResizeData, LayoutElement, LayoutElementRenderElement,
LayoutElementRenderSnapshot, SizingMode,
};
use crate::niri_render_elements;
use crate::render_helpers::border::BorderRenderElement;
use crate::render_helpers::offscreen::OffscreenData;
use crate::render_helpers::renderer::NiriRenderer;
use crate::render_helpers::snapshot::RenderSnapshot;
use crate::render_helpers::solid_color::{SolidColorBuffer, SolidColorRenderElement};
use crate::render_helpers::surface::render_snapshot_from_surface_tree;
