hot_reload.hpp

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// Hot reload — the XML and theme files of the screen shown, watched on a
// desktop, and the activity built again when one changes.
// Copyright (C) 2026 JigSawFr.  GPLv3-or-later (see LICENSE.GPL).
#pragma once
 
#include <string>
#include <vector>
 
namespace aurore
{
 
class Activity;
 
class HotReload
{
  public:
    static void setEnabled(bool enabled, const std::string& resourcesDir = "");
    static bool isEnabled() { return enabled; }
 
    static std::string diskResource(const std::string& value);
 
    // An XML file read from disk
    static void noteXMLFile(const std::string& path);
 
    // The theme file in use (Theme::loadFile) and the files it includes and
    // inherits, replacing the ones before; empty without a theme file. A
    // change to one of them reads the theme file in use again.
    static void setThemeFiles(const std::vector<std::string>& paths);
 
    // The activity whose content is being made, to which the XML files read
    // are counted (the activity on top otherwise)
    inline static Activity* building = nullptr;
    static void forgetActivity(Activity* activity);
 
    // From the main loop: looks at the files now and then
    static void poll();
 
  private:
    inline static bool enabled = false;
};
 
} // namespace aurore