public override void OnGUI(SerializedTypeDrawerData data, Rect position, SerializedProperty property, GUIContent label)
{
int idHash = 0;
// By manually creating the control ID, we can keep the ID for the
// label and button the same. This lets them be selected together
// with the keyboard in the inspector, much like a normal popup.
if (idHash == 0)
{
idHash = "SerializedTypeDrawer".GetHashCode();
}
int id = GUIUtility.GetControlID(idHash, FocusType.Keyboard, position);
if (m_ShowSimplifiedNames != ShowSimplifiedTypeNames)
{
m_ShowSimplifiedNames = ShowSimplifiedTypeNames;
// NOTE Ideally UserSetting.ValueChanged event would exist and we would react to its changes.
m_PropertyPathToOptions.Clear();
}
Options options;
if (!m_PropertyPathToOptions.TryGetValue(property.propertyPath, out options))
{
var filterAttribute = Attribute.GetCustomAttribute(fieldInfo, typeof(SerializedTypeFilterAttributeBase), true) as SerializedTypeFilterAttributeBase;
options = new Options(filterAttribute.BaseType, filterAttribute.HideAbstractTypes);
m_PropertyPathToOptions[property.propertyPath] = options;
}
var typeNameProperty = property.FindPropertyRelative(k_TypeNamePath);
int selectedIndex = ArrayUtility.IndexOf(options.assemblyQualifiedNames, typeNameProperty.stringValue);
label = EditorGUI.BeginProperty(position, label, property);
position = EditorGUI.PrefixLabel(position, id, label);
GUIContent buttonText;
if (selectedIndex <= 0 || selectedIndex >= options.assemblyQualifiedNames.Length)
{
buttonText = options.displayedOptions[0]; //"None"
}
else
{
buttonText = options.displayedOptions[selectedIndex];
}
if (DropdownButton(id, position, buttonText))
{
Action <int> onItemSelected = (i) => OnItemSelected(i, position, options, property, typeNameProperty);
SearchablePopup.Show(position, options.displayedOptions, selectedIndex, onItemSelected);
}
if (data.HasChanged)
{
/* HACK: removing those EndChangeCheck() will make ImGUI unable to detect changes in the SerializedTypes
* edited through the popup. There's probably something internal happening here, as
* in the rest of the code there seems to already be an EndChangeCheck() for each BeginChangeCheck */
EditorGUI.EndChangeCheck();
EditorGUI.EndChangeCheck();
data.HasChanged = false;
SetDataForProperty(property, data);
typeNameProperty.stringValue = options.assemblyQualifiedNames[data.NewTypeIndex];
}
EditorGUI.EndProperty();
}
public override void OnGUI(SerializedTypeDrawerData data, Rect position, SerializedProperty property, GUIContent label)
{
int idHash = 0;
// By manually creating the control ID, we can keep the ID for the
// label and button the same. This lets them be selected together
// with the keyboard in the inspector, much like a normal popup.
if (idHash == 0)
{
idHash = "SerializedTypeDrawer".GetHashCode();
}
int id = GUIUtility.GetControlID(idHash, FocusType.Keyboard, position);
if (m_ShowSimplifiedNames != ShowSimplifiedTypeNames)
{
m_ShowSimplifiedNames = ShowSimplifiedTypeNames;
// NOTE Ideally UserSetting.ValueChanged event would exist and we would react to its changes.
m_PropertyPathToOptions.Clear();
}
var typeNameProperty = property.FindPropertyRelative(k_TypeNamePath);
var assemblyQualifiedName = typeNameProperty.stringValue;
Options options;
if (!m_PropertyPathToOptions.TryGetValue(property.propertyPath, out options))
{
var filterAttribute = Attribute.GetCustomAttribute(fieldInfo, typeof(SerializedTypeFilterAttributeBase), true) as SerializedTypeFilterAttributeBase;
options = new Options(assemblyQualifiedName, filterAttribute.BaseType, filterAttribute.HideAbstractTypes);
m_PropertyPathToOptions[property.propertyPath] = options;
}
var origBgColor = GUI.backgroundColor;
label = EditorGUI.BeginProperty(position, label, property);
position = EditorGUI.PrefixLabel(position, id, label);
var resolvedType = Type.GetType(assemblyQualifiedName);
if (resolvedType == null && assemblyQualifiedName.IsNotNullOrEmpty())
{
GUI.backgroundColor = Color.red;
}
else if (resolvedType != null && resolvedType.AssemblyQualifiedName != assemblyQualifiedName)
{
// Resolved type's AQN different than the original AQN: for example, SceneView behaves like this when upgrading from 2019.4
// to 2020 or newer (moved from UnityEngine to UnityEngine.CoreModule assembly).
GUI.backgroundColor = Color.yellow;
}
var selectedIndex = ArrayUtility.IndexOf(options.assemblyQualifiedNames, assemblyQualifiedName);
if (selectedIndex < 0)
{
selectedIndex = 0; // Not Found
}
GUIContent buttonText = options.displayedOptions[selectedIndex];
if (DropdownButton(id, position, buttonText))
{
Action <int> onItemSelected = (i) => OnItemSelected(i, position, options, property, typeNameProperty);
SearchablePopup.Show(position, options.displayedOptions, selectedIndex, onItemSelected);
}
if (data.HasChanged)
{
/* HACK: removing those EndChangeCheck() will make ImGUI unable to detect changes in the SerializedTypes
* edited through the popup. There's probably something internal happening here, as
* in the rest of the code there seems to already be an EndChangeCheck() for each BeginChangeCheck */
EditorGUI.EndChangeCheck();
EditorGUI.EndChangeCheck();
data.HasChanged = false;
SetDataForProperty(property, data);
typeNameProperty.stringValue = options.assemblyQualifiedNames[data.NewTypeIndex];
}
EditorGUI.EndProperty();
GUI.backgroundColor = origBgColor;
}