Method focusWindowUnderPointer

packages/config/src/window-manager.ts:3638–3669

(window: WaylandWindow)

   *
   * "The tile that slid into its place" is only an answer for a tile in a
   * tiled workspace. Anywhere else — a floating workspace, or a dialog that
   * never held a slot — there is no next-one-along to name, and naming one
   * anyway is what sent focus to the wrong window: dismissing an SSH approval
   * prompt jumped to the password manager's main window instead of returning
   * to the terminal that had asked for it.
   *
   * Declining is not caution, it is the better answer. The compositor elects
   * the window the user most recently typed in or clicked on, which is what
   * "put me back where I was" means, and is something this layer cannot work
   * out for itself: it focuses every window at onOpen, so "was focused" cannot
   * separate a terminal in use from a dialog that appeared beside it.
   */
  private successorForRemovedWindow(
    wasTile: boolean,
    tileIndex: number,
  ): WaylandWindow | null {
    if (!this.isTiled || !wasTile || tileIndex < 0) {
      return null;
    }
    const tileable = this.tileableWindows();
    return tileable[Math.min(tileIndex, tileable.length - 1)] ?? null;
  }

  public removeTileDragWindow(window: WaylandWindow) {
    const index = this.windows.findIndex((current) => current.id === window.id);
    if (index < 0) {
      return;
    }
    this.windows.splice(index, 1);
    this.draggingWindowId = null;
  }

  public removeFloatingWindow(window: WaylandWindow) {
    const index = this.windows.findIndex((current) => current.id === window.id);
    if (index < 0) {