src/scripted/script_backend.cpp

#ifdef WITH_RIVE_SCRIPTING
#include "rive/scripted/script_backend.hpp"
#include "rive/scripted/scripted_object.hpp"

#include <vector>

using namespace rive;

ScriptBackend::~ScriptBackend() { detachScriptedObjects(); }

void ScriptBackend::displayScale(float scale)
{
    if (scale == m_displayScale)
    {
        return;
    }
    m_displayScale = scale;
    // The callback runs script code that can register or unregister objects
    // on this backend; walk a snapshot and skip anything since removed.
    std::vector<ScriptedObject*> objects(m_scriptedObjects.begin(),
                                         m_scriptedObjects.end());
    for (ScriptedObject* object : objects)
    {
        if (m_scriptedObjects.count(object) != 0)
        {
            object->displayScaleChanged();
        }
    }
}

void ScriptBackend::registerScriptedObject(ScriptedObject* object)
{
    if (object != nullptr)
    {
        m_scriptedObjects.insert(object);
    }
}

void ScriptBackend::unregisterScriptedObject(ScriptedObject* object)
{
    if (object != nullptr)
    {
        m_scriptedObjects.erase(object);
    }
}

void ScriptBackend::detachScriptedObjects()
{
    for (ScriptedObject* object : m_scriptedObjects)
    {
        object->m_vm = nullptr;
    }
    m_scriptedObjects.clear();
}
#endif