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max 2022-12-28 14:03:46 +01:00
parent a0fa2c9b36
commit 0d04c50612
7 changed files with 72 additions and 62 deletions
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9
Editor/Attributes/SerializeReferenceButtonAttributeDrawer.cs
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@ -1,5 +1,6 @@
#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
@ -13,14 +14,12 @@ public class SerializeReferenceButtonAttributeDrawer : PropertyDrawer
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
EditorGUI.BeginProperty(position, label, property);
var labelPosition = new Rect(position.x, position.y, position.width, EditorGUIUtility.singleLineHeight);
Rect labelPosition = new Rect(position.x, position.y, position.width, EditorGUIUtility.singleLineHeight);
EditorGUI.LabelField(labelPosition, label);
var typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
IEnumerable<Func<Type, bool>> typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
property.DrawSelectionButtonForManagedReference(position, typeRestrictions);
EditorGUI.PropertyField(position, property, GUIContent.none, true);

6
Editor/Attributes/SerializeReferenceMenuAttributeDrawer.cs
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@ -1,5 +1,6 @@
#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
@ -15,7 +16,7 @@ public class SerializeReferenceMenuAttributeDrawer : PropertyDrawer
{
EditorGUI.BeginProperty(position, label, property);
var typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
IEnumerable<Func<Type, bool>> typeRestrictions = SerializedReferenceUIDefaultTypeRestrictions.GetAllBuiltInTypeRestrictions(fieldInfo);
property.ShowContextMenuForManagedReferenceOnMouseMiddleButton(position, typeRestrictions);
EditorGUI.PropertyField(position, property, true);
@ -23,4 +24,3 @@ public class SerializeReferenceMenuAttributeDrawer : PropertyDrawer
}
}
#endif

41
Editor/Core/ManagedReferenceUtility.cs
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@ -1,5 +1,4 @@
#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using System.Linq;
@ -12,7 +11,7 @@ public static class ManagedReferenceUtility
/// Creates instance of passed type and assigns it to managed reference
public static object AssignNewInstanceOfTypeToManagedReference(this SerializedProperty serializedProperty, Type type)
{
var instance = Activator.CreateInstance(type);
object instance = Activator.CreateInstance(type);
serializedProperty.serializedObject.Update();
serializedProperty.managedReferenceValue = instance;
@ -32,34 +31,44 @@ public static class ManagedReferenceUtility
/// Collects appropriate types based on managed reference field type and filters. Filters all derive
public static IEnumerable<Type> GetAppropriateTypesForAssigningToManagedReference(this SerializedProperty property, List<Func<Type, bool>> filters = null)
{
var fieldType = property.GetManagedReferenceFieldType();
Type fieldType = property.GetManagedReferenceFieldType();
return GetAppropriateTypesForAssigningToManagedReference(fieldType, filters);
}
/// Filters derived types of field typ parameter and finds ones whose are compatible with managed reference and filters.
public static IEnumerable<Type> GetAppropriateTypesForAssigningToManagedReference(Type fieldType, List<Func<Type, bool>> filters = null)
{
var appropriateTypes = new List<Type>();
List<Type> appropriateTypes = new List<Type>();
// Get and filter all appropriate types
var derivedTypes = TypeCache.GetTypesDerivedFrom(fieldType);
foreach (var type in derivedTypes)
TypeCache.TypeCollection derivedTypes = TypeCache.GetTypesDerivedFrom(fieldType);
foreach (Type type in derivedTypes)
{
// Skips unity engine Objects (because they are not serialized by SerializeReference)
if (type.IsSubclassOf(typeof(Object)))
{
continue;
}
// Skip abstract classes because they should not be instantiated
if (type.IsAbstract)
{
continue;
// Skip generic classes because they can not be instantiated
}
// Skip generic classes because they can not be instantiated
if (type.ContainsGenericParameters)
{
continue;
}
// Skip types that has no public empty constructors (activator can not create them)
if (type.IsClass && type.GetConstructor(Type.EmptyTypes) == null) // Structs still can be created (strangely)
{
continue;
}
// Filter types by provided filters if there is ones
if (filters != null && filters.All(f => f == null || f.Invoke(type)) == false)
{
continue;
}
appropriateTypes.Add(type);
}
@ -70,9 +79,11 @@ public static class ManagedReferenceUtility
/// Gets real type of managed reference
public static Type GetManagedReferenceFieldType(this SerializedProperty property)
{
var realPropertyType = GetRealTypeFromTypename(property.managedReferenceFieldTypename);
Type realPropertyType = GetRealTypeFromTypename(property.managedReferenceFieldTypename);
if (realPropertyType != null)
{
return realPropertyType;
}
Debug.LogError($"Can not get field type of managed reference : {property.managedReferenceFieldTypename}");
return null;
@ -81,8 +92,9 @@ public static class ManagedReferenceUtility
/// Gets real type of managed reference's field typeName
public static Type GetRealTypeFromTypename(string stringType)
{
var names = GetSplitNamesFromTypename(stringType);
var realType = Type.GetType($"{names.ClassName}, {names.AssemblyName}");
(string AssemblyName, string ClassName) = GetSplitNamesFromTypename(stringType);
Type realType = Type.GetType($"{ClassName}, {AssemblyName}");
return realType;
}
@ -90,11 +102,14 @@ public static class ManagedReferenceUtility
public static (string AssemblyName, string ClassName) GetSplitNamesFromTypename(string typename)
{
if (string.IsNullOrEmpty(typename))
{
return ("","");
}
string[] typeSplitString = typename.Split(char.Parse(" "));
string typeClassName = typeSplitString[1];
string typeAssemblyName = typeSplitString[0];
var typeSplitString = typename.Split(char.Parse(" "));
var typeClassName = typeSplitString[1];
var typeAssemblyName = typeSplitString[0];
return (typeAssemblyName, typeClassName);
}
}

24
Editor/Core/SerializeReferenceGenericSelectionMenu.cs
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@ -1,5 +1,4 @@
#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using System.Linq;
@ -17,7 +16,7 @@ public static class SerializeReferenceGenericSelectionMenu
/// And it will be performed on each Appropriate type found by TypeCache.
public static void ShowContextMenuForManagedReference(this SerializedProperty property, Rect position, IEnumerable<Func<Type,bool>> filters = null)
{
var context = new GenericMenu();
GenericMenu context = new GenericMenu();
FillContextMenu(filters, context, property);
context.DropDown(position);
}
@ -31,38 +30,40 @@ public static class SerializeReferenceGenericSelectionMenu
/// And it will be performed on each Appropriate type found by TypeCache.
public static void ShowContextMenuForManagedReference(this SerializedProperty property, IEnumerable<Func<Type, bool>> filters = null)
{
var context = new GenericMenu();
GenericMenu context = new GenericMenu();
FillContextMenu(filters, context, property);
context.ShowAsContext();
}
private static void FillContextMenu(IEnumerable<Func<Type, bool>> enumerableFilters, GenericMenu contextMenu, SerializedProperty property)
{
var filters = enumerableFilters.ToList();// Prevents possible multiple enumerations
List<Func<Type, bool>> filters = enumerableFilters.ToList();// Prevents possible multiple enumerations
// Adds "Make Null" menu command
contextMenu.AddItem(new GUIContent("Null"), false, property.SetManagedReferenceToNull);
// Collects appropriate types
var appropriateTypes = property.GetAppropriateTypesForAssigningToManagedReference(filters);
IEnumerable<Type> appropriateTypes = property.GetAppropriateTypesForAssigningToManagedReference(filters);
// Adds appropriate types to menu
foreach (var appropriateType in appropriateTypes)
foreach (Type appropriateType in appropriateTypes)
{
AddItemToContextMenu(appropriateType, contextMenu, property);
}
}
private static void AddItemToContextMenu(Type type, GenericMenu genericMenuContext, SerializedProperty property)
{
var assemblyName = type.Assembly.ToString().Split('(', ',')[0];
var entryName = type + " ( " + assemblyName + " )";
string assemblyName = type.Assembly.ToString().Split('(', ',')[0];
string entryName = type + " ( " + assemblyName + " )";
genericMenuContext.AddItem(new GUIContent(entryName), false, AssignNewInstanceCommand, new GenericMenuParameterForAssignInstanceCommand(type, property));
}
private static void AssignNewInstanceCommand(object objectGenericMenuParameter )
{
var parameter = (GenericMenuParameterForAssignInstanceCommand) objectGenericMenuParameter;
var type = parameter.Type;
var property = parameter.Property;
GenericMenuParameterForAssignInstanceCommand parameter = (GenericMenuParameterForAssignInstanceCommand) objectGenericMenuParameter;
Type type = parameter.Type;
SerializedProperty property = parameter.Property;
property.AssignNewInstanceOfTypeToManagedReference(type);
}
@ -78,5 +79,4 @@ public static class SerializeReferenceGenericSelectionMenu
public readonly Type Type;
}
}
#endif

9
Editor/DefaultUI/SerializeReferenceInspectorMiddleMouseMenu.cs
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@ -1,5 +1,4 @@
#if UNITY_EDITOR
using System;
using System.Collections.Generic;
using UnityEditor;
@ -7,15 +6,15 @@ using UnityEngine;
public static class SerializeReferenceInspectorMiddleMouseMenu
{
public static void ShowContextMenuForManagedReferenceOnMouseMiddleButton(this SerializedProperty property,
Rect position, IEnumerable<Func<Type, bool>> filters = null)
public static void ShowContextMenuForManagedReferenceOnMouseMiddleButton(this SerializedProperty property, Rect position, IEnumerable<Func<Type, bool>> filters = null)
{
var e = Event.current;
Event e = Event.current;
if (e.type != EventType.MouseDown || !position.Contains(e.mousePosition) || e.button != 2)
{
return;
}
property.ShowContextMenuForManagedReference(filters);
}
}
#endif

6
Runtime/Attributes/SerializedReferenceUIDefaultTypeRestrictions.cs
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@ -6,10 +6,10 @@ public static class SerializedReferenceUIDefaultTypeRestrictions
{
public static IEnumerable<Func<Type, bool>> GetAllBuiltInTypeRestrictions(FieldInfo fieldInfo)
{
var result = new List<Func<Type, bool>>();
List<Func<Type, bool>> result = new List<Func<Type, bool>>();
var attributeObjects = fieldInfo.GetCustomAttributes(false);
foreach (var attributeObject in attributeObjects)
object[] attributeObjects = fieldInfo.GetCustomAttributes(false);
foreach (object attributeObject in attributeObjects)
{
switch (attributeObject)
{

9
Runtime/Core/SerializeReferenceTypeRestrictionFilters.cs
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@ -1,13 +1,10 @@
 using System;
using System;
using System.Linq;
public static class SerializeReferenceTypeRestrictionFilters
{
public static Func<Type, bool> TypeIsNotSubclassOrEqualOrHasInterface(Type[] types) => type =>
TypeIsSubclassOrEqualOrHasInterface(types).Invoke(type) == false;
public static Func<Type, bool> TypeIsSubclassOrEqualOrHasInterface(Type[] types) => type =>
types.Any(e => e.IsInterface ? TypeHasInterface(type, e) : TypeIsSubclassOrEqual(type, e));
public static Func<Type, bool> TypeIsNotSubclassOrEqualOrHasInterface(Type[] types) => type => TypeIsSubclassOrEqualOrHasInterface(types).Invoke(type) == false;
public static Func<Type, bool> TypeIsSubclassOrEqualOrHasInterface(Type[] types) => type => types.Any(e => e.IsInterface ? TypeHasInterface(type, e) : TypeIsSubclassOrEqual(type, e));
public static bool TypeIsSubclassOrEqual(Type type, Type comparator) => type.IsSubclassOf(comparator) || type == comparator;
public static bool TypeHasInterface(this Type type, Type comparator) => type.GetInterface(comparator.ToString()) != null;