src/script_input_viewmodel_property.cpp

#include "rive/importers/scripted_object_importer.hpp"
#include "rive/scripted/scripted_drawable.hpp"
#include "rive/script_input_viewmodel_property.hpp"
#include "rive/viewmodel/viewmodel_instance_value.hpp"
#include "rive/viewmodel/viewmodel_property_enum_custom.hpp"
#include "rive/viewmodel/viewmodel_property_viewmodel.hpp"
#include "rive/custom_property_container.hpp"

using namespace rive;

ScriptInputViewModelProperty::~ScriptInputViewModelProperty()
{
  auto obj = scriptedObject();
  if (obj != nullptr)
  {
    obj->removeProperty(this);
  }
}

void ScriptInputViewModelProperty::decodeDataBindPathIds(
    Span<const uint8_t> value)
{
  decodeDataBindPath(value);
}

void ScriptInputViewModelProperty::copyDataBindPathIds(
    const ScriptInputViewModelPropertyBase& object)
{
  copyDataBindPath(object.as<ScriptInputViewModelProperty>()->dataBindPath());
}

void ScriptInputViewModelProperty::initScriptedValue()
{
  ScriptInput::initScriptedValue();
  if (m_viewModelInstanceValue == nullptr)
  {
    return;
  }
  auto obj = scriptedObject();
  if (obj)
  {
    obj->setViewModelInput(name(), m_viewModelInstanceValue);
  }
}

bool ScriptInputViewModelProperty::validateForScriptInit()
{
  // Binding validation happens in hydrateScriptInput(); cold init does not
  // require a resolved view-model property.
  m_viewModelInstanceValue = nullptr;
  return true;
}

bool ScriptInputViewModelProperty::validateForColdScriptInit()
{
  m_viewModelInstanceValue = nullptr;
  return true;
}

bool ScriptInputViewModelProperty::validateHydrationPrerequisites()
{
  auto scriptedObj = scriptedObject();
  if (scriptedObj == nullptr)
  {
    return false;
  }
  auto dataContext = scriptedObj->dataContext();
  if (dataContext == nullptr)
  {
    return false;
  }
  if (m_dataBindPath == nullptr)
  {
    return false;
  }
  auto instanceValue = dataContext->getViewModelProperty(m_dataBindPath);
  if (instanceValue == nullptr)
  {
    return false;
  }
  return instanceValue->viewModelProperty() != nullptr;
}

bool ScriptInputViewModelProperty::hydrateScriptInput()
{
  m_viewModelInstanceValue = nullptr;
  auto scriptedObj = scriptedObject();
  if (scriptedObj == nullptr)
  {
    return false;
  }
  auto dataContext = scriptedObj->dataContext();
  if (dataContext == nullptr)
  {
    return false;
  }
  if (m_dataBindPath == nullptr)
  {
    return false;
  }
  auto instanceValue = dataContext->getViewModelProperty(m_dataBindPath);
  if (instanceValue == nullptr)
  {
    return false;
  }
  auto viewModelProperty = instanceValue->viewModelProperty();
  if (viewModelProperty == nullptr)
  {
    return false;
  }
  m_viewModelInstanceValue = instanceValue;
  initScriptedValue();
  return true;
}

StatusCode ScriptInputViewModelProperty::import(ImportStack& importStack)
{
  importDataBindPath(importStack);
  auto importer = ScriptInput::ownerImporter(importStack, this);
  if (importer == nullptr)
  {
    return StatusCode::MissingObject;
  }
  importer->addInput(this);

  auto obj = scriptedObject();
  if (obj && obj->component() != nullptr)
  {
    // If the ScriptedObject is a Component, this input is an artboard
    // child (File::readObjects gave it a slot, see takesArtboardSlot), so
    // import it as a Component, otherwise, return Ok
    return Super::import(importStack);
  }
  return StatusCode::Ok;
}

StatusCode ScriptInputViewModelProperty::onAddedClean(CoreContext* context)
{
  StatusCode code = Super::onAddedClean(context);
  if (code != StatusCode::Ok)
  {
    return code;
  }

  auto p = parent();
  if (p != nullptr)
  {
    auto scriptedObj = ScriptedObject::from(p);
    if (scriptedObj != nullptr)
    {
      scriptedObj->addProperty(this);
    }
  }

  return StatusCode::Ok;
}
#ifdef WITH_RIVE_EDITOR
bool ScriptInputViewModelProperty::applyChange(
    uint16_t key,
    BinaryReader& reader)
{
  if (key != dataBindPathIdsPropertyKey)
    return Super::applyChange(key, reader);
  delete m_dataBindPath;
  m_dataBindPath = new DataBindPath();
  // The REV field is a bytes envelope containing a counted list of IDs.
  auto bytes = CoreBytesType::deserialize(reader);
  BinaryReader pathReader(bytes);
  m_dataBindPath->decodeEditorPath(pathReader);
  return true;
}
#endif