WuhuIslandTesting/Library/PackageCache/com.unity.addressables@1.21.12/Editor/GUI/AssetReferenceDrawer.cs
2025-01-07 02:06:59 +01:00

1207 lines
50 KiB
C#

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using UnityEditor.AddressableAssets.Settings;
using UnityEditor.IMGUI.Controls;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.AddressableAssets;
using UnityEngine.Assertions;
using UnityEngine.U2D;
using Debug = UnityEngine.Debug;
namespace UnityEditor.AddressableAssets.GUI
{
using Object = UnityEngine.Object;
[CustomPropertyDrawer(typeof(AssetReference), true)]
class AssetReferenceDrawer : PropertyDrawer
{
public string newGuid;
public string newGuidPropertyPath;
internal string m_AssetName;
internal Rect assetDropDownRect;
internal const string noAssetString = "None (AddressableAsset)";
internal const string forceAddressableString = "Make Addressable - ";
internal AssetReference m_AssetRefObject;
internal GUIContent m_label;
internal bool m_ReferencesSame = true;
internal List<AssetReferenceUIRestrictionSurrogate> m_Restrictions = null;
SubassetPopup m_SubassetPopup;
private Texture m_CaretTexture = null;
internal const string k_FieldControlPrefix = "AssetReferenceField";
internal const string k_SubFieldControlPrefix = "AssetReferenceSubField";
internal SerializedProperty assetProperty;
internal bool subassetPickerSelectionChanged;
internal List<AssetReferenceUIRestrictionSurrogate> Restrictions => m_Restrictions;
private string GetControlName(string prefix, string name)
{
return $"{prefix}_{name}";
}
/// <summary>
/// Validates that the referenced asset allowable for this asset reference.
/// </summary>
/// <param name="path">The path to the asset in question.</param>
/// <returns>Whether the referenced asset is valid.</returns>
public bool ValidateAsset(string path)
{
return AssetReferenceDrawerUtilities.ValidateAsset(m_AssetRefObject, Restrictions, path);
}
internal bool ValidateAsset(IReferenceEntryData entryData)
{
return AssetReferenceDrawerUtilities.ValidateAsset(m_AssetRefObject, Restrictions, entryData);
}
/*
* The AssetReference class is not a Unity.Object or a base type so a lot of SerializedProperty's
* functionalities doesn't work, because type-checking is done in the API to check whether an operation
* can be executed or not. In the engine, one of the way changes are detected is when a new value is set
* through the class' value setters (see MarkPropertyModified() in SerializedProperty.cpp). So in order to
* trigger a change, we modify a sub-property instead.
*/
void TriggerOnValidate(SerializedProperty property)
{
if (property != null)
{
property.serializedObject.ApplyModifiedProperties();
property.serializedObject.Update();
// This is actually what triggers the OnValidate() method.
// Since 'm_EditorAssetChanged' is of a recognized type and is a sub-property of AssetReference, both
// are flagged as changed and OnValidate() is called.
property.FindPropertyRelative("m_EditorAssetChanged").boolValue = false;
}
}
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
if (property == null || label == null)
{
Debug.LogError("Error rendering drawer for AssetReference property.");
return;
}
string labelText = label.text;
m_ReferencesSame = true;
m_AssetRefObject = property.GetActualObjectForSerializedProperty<AssetReference>(fieldInfo, ref labelText);
assetProperty = property;
labelText = ObjectNames.NicifyVariableName(labelText);
if (labelText != label.text || string.IsNullOrEmpty(label.text))
{
label = new GUIContent(labelText, label.tooltip);
}
m_label = label;
if (m_AssetRefObject == null)
{
return;
}
EditorGUI.BeginProperty(position, label, property);
if (m_Restrictions == null)
m_Restrictions = AssetReferenceDrawerUtilities.GatherFilters(property);
string guid = m_AssetRefObject.AssetGUID;
var aaSettings = AddressableAssetSettingsDefaultObject.Settings;
var isNotAddressable = ApplySelectionChanges(property, aaSettings, ref guid);
assetDropDownRect = EditorGUI.PrefixLabel(position, label);
var nameToUse = AssetReferenceDrawerUtilities.GetNameForAsset(ref m_ReferencesSame, property, isNotAddressable, fieldInfo, m_label.text);
bool isDragging = Event.current.type == EventType.DragUpdated && position.Contains(Event.current.mousePosition);
bool isDropping = Event.current.type == EventType.DragPerform && position.Contains(Event.current.mousePosition);
bool shouldDrawSubAssetsControl = false;
List<Object> subAssetsList = PrepareForSubAssetsControl(ref shouldDrawSubAssetsControl);
if (shouldDrawSubAssetsControl)
assetDropDownRect = new Rect(assetDropDownRect.position, new Vector2(assetDropDownRect.width / 2, assetDropDownRect.height));
bool isEnterKeyPressed = Event.current.type == EventType.KeyDown && Event.current.isKey && (Event.current.keyCode == KeyCode.KeypadEnter || Event.current.keyCode == KeyCode.Return);
DrawControl(property, nameToUse, isNotAddressable, guid, isEnterKeyPressed);
if (shouldDrawSubAssetsControl)
DrawSubAssetsControl(property, subAssetsList, isEnterKeyPressed);
HandleDragAndDrop(property, isDragging, isDropping, guid);
EditorGUI.EndProperty();
}
private List<Object> PrepareForSubAssetsControl(ref bool shouldDrawSubAssetsControl)
{
List<Object> subAssets = null;
bool selectedSubObject = !string.IsNullOrEmpty(m_AssetRefObject.SubObjectName);
if (m_AssetRefObject.editorAsset != null && m_ReferencesSame && !selectedSubObject)
subAssets = AssetReferenceDrawerUtilities.GetSubAssetsList(m_AssetRefObject);
shouldDrawSubAssetsControl = selectedSubObject || (subAssets != null && subAssets.Count > 1);
return subAssets;
}
internal bool ApplySelectionChanges(SerializedProperty property, AddressableAssetSettings aaSettings, ref string guid)
{
var checkToForceAddressable = string.Empty;
if (!string.IsNullOrEmpty(newGuid) && newGuidPropertyPath == property.propertyPath)
{
if (newGuid == noAssetString)
{
if (AssetReferenceDrawerUtilities.SetObject(ref m_AssetRefObject, ref m_ReferencesSame, property, null, fieldInfo, m_label.text, out guid))
TriggerOnValidate(property);
newGuid = string.Empty;
}
else if (newGuid == forceAddressableString)
{
checkToForceAddressable = guid;
newGuid = string.Empty;
}
else if (guid != newGuid)
{
if (AssetReferenceDrawerUtilities.SetObject(ref m_AssetRefObject, ref m_ReferencesSame, property, AssetDatabase.LoadAssetAtPath<Object>(AssetDatabase.GUIDToAssetPath(newGuid)),
fieldInfo, m_label.text, out guid))
{
checkToForceAddressable = newGuid;
TriggerOnValidate(property);
}
newGuid = string.Empty;
}
}
bool isNotAddressable = false;
m_AssetName = noAssetString;
if (aaSettings != null && !string.IsNullOrEmpty(guid))
{
isNotAddressable = AssetReferenceDrawerUtilities.CheckForNewEntry(ref m_AssetName, aaSettings, guid, checkToForceAddressable);
}
return isNotAddressable;
}
private void DrawControl(SerializedProperty property, string nameToUse, bool isNotAddressable, string guid, bool isEnterKeyPressed)
{
float pickerWidth = 12f;
Rect pickerRect = assetDropDownRect;
pickerRect.width = pickerWidth;
pickerRect.x = assetDropDownRect.xMax - pickerWidth * 1.33f;
string controlName = GetControlName(k_FieldControlPrefix, property.name);
bool isPickerPressed = Event.current.type == EventType.MouseDown && Event.current.button == 0 && pickerRect.Contains(Event.current.mousePosition);
var asset = m_AssetRefObject?.editorAsset;
if (asset != null && m_ReferencesSame)
{
float iconHeight = EditorGUIUtility.singleLineHeight - EditorGUIUtility.standardVerticalSpacing * 3;
Vector2 iconSize = EditorGUIUtility.GetIconSize();
EditorGUIUtility.SetIconSize(new Vector2(iconHeight, iconHeight));
string assetPath = AssetDatabase.GUIDToAssetPath(m_AssetRefObject.AssetGUID);
Texture2D assetIcon = AssetDatabase.GetCachedIcon(assetPath) as Texture2D;
UnityEngine.GUI.SetNextControlName(controlName);
if (EditorGUI.DropdownButton(assetDropDownRect, new GUIContent(nameToUse, assetIcon), FocusType.Keyboard, EditorStyles.objectField))
{
if (Event.current.clickCount == 1)
{
UnityEngine.GUI.FocusControl(controlName);
EditorGUIUtility.PingObject(asset);
}
if (Event.current.clickCount == 2)
{
AssetDatabase.OpenAsset(asset);
GUIUtility.ExitGUI();
}
}
EditorGUIUtility.SetIconSize(iconSize);
}
else
{
UnityEngine.GUI.SetNextControlName(controlName);
if (EditorGUI.DropdownButton(assetDropDownRect, new GUIContent(nameToUse), FocusType.Keyboard, EditorStyles.objectField))
UnityEngine.GUI.FocusControl(controlName);
}
DrawCaret(pickerRect);
bool enterKeyRequestsPopup = isEnterKeyPressed && (controlName == UnityEngine.GUI.GetNameOfFocusedControl());
if (isPickerPressed || enterKeyRequestsPopup)
{
newGuidPropertyPath = property.propertyPath;
var nonAddressedOption = isNotAddressable ? m_AssetName : string.Empty;
EditorWindow.GetWindow<AssetReferencePopup>(true, "Select Addressable Asset").Initialize(this, guid, nonAddressedOption, enterKeyRequestsPopup, Event.current.mousePosition);
}
}
private void DrawCaret(Rect pickerRect)
{
if (m_CaretTexture == null)
{
m_CaretTexture = EditorGUIUtility.IconContent("d_pick").image;
}
if (m_CaretTexture != null)
{
UnityEngine.GUI.DrawTexture(pickerRect, m_CaretTexture, ScaleMode.ScaleToFit);
}
}
private void HandleDragAndDrop(SerializedProperty property, bool isDragging, bool isDropping, string guid)
{
var aaSettings = AddressableAssetSettingsDefaultObject.Settings;
//During the drag, doing a light check on asset validity. The in-depth check happens during a drop, and should include a log if it fails.
var rejectedDrag = false;
if (isDragging)
{
if (aaSettings == null)
rejectedDrag = true;
else
{
var aaEntries = DragAndDrop.GetGenericData("AssetEntryTreeViewItem") as List<AssetEntryTreeViewItem>;
rejectedDrag = AssetReferenceDrawerUtilities.ValidateDrag(m_AssetRefObject, Restrictions, aaEntries, DragAndDrop.objectReferences, DragAndDrop.paths);
}
DragAndDrop.visualMode = rejectedDrag ? DragAndDropVisualMode.Rejected : DragAndDropVisualMode.Copy;
}
if (!rejectedDrag && isDropping)
{
var aaEntries = DragAndDrop.GetGenericData("AssetEntryTreeViewItem") as List<AssetEntryTreeViewItem>;
if (aaEntries != null)
DragAndDropFromAddressableGroupWindow(aaEntries, guid, property);
else if (DragAndDrop.paths != null)
DragAndDropNotFromAddressableGroupWindow(DragAndDrop.paths, guid, property, aaSettings);
}
}
internal void DragAndDropFromAddressableGroupWindow(List<AssetEntryTreeViewItem> aaEntries, string guid, SerializedProperty property)
{
if (aaEntries.Count == 1)
{
var item = aaEntries[0];
if (item.entry != null)
{
if (item.entry.IsInResources)
Addressables.LogWarning("Cannot use an AssetReference on an asset in Resources. Move asset out of Resources first.");
else
{
if (AssetReferenceDrawerUtilities.SetObject(ref m_AssetRefObject, ref m_ReferencesSame, property, item.entry.TargetAsset, fieldInfo, m_label.text, out guid))
TriggerOnValidate(property);
}
}
}
else if (fieldInfo.FieldType.IsArray || fieldInfo.FieldType.IsAssignableFrom(typeof(List<AssetReference>)))
{
string arrayName = SerializedPropertyExtensions.GetPropertyPathArrayName(property.propertyPath);
SerializedProperty arrayProperty = property.serializedObject.FindProperty(arrayName);
foreach (AssetEntryTreeViewItem item in aaEntries)
{
AddressableAssetEntry entry = item.entry;
if (entry.IsInResources)
Addressables.LogWarning("Cannot use an AssetReference on an asset in Resources. Move asset out of Resources first.");
else
{
arrayProperty.InsertArrayElementAtIndex(arrayProperty.arraySize);
arrayProperty.serializedObject.ApplyModifiedProperties();
arrayProperty.serializedObject.Update();
SerializedProperty elementProperty = arrayProperty.GetArrayElementAtIndex(arrayProperty.arraySize - 1);
string labelText = "";
AssetReference assetRef = elementProperty.GetActualObjectForSerializedProperty<AssetReference>(fieldInfo, ref labelText);
bool referencesSame = false;
Object obj = entry.TargetAsset;
if (AssetReferenceDrawerUtilities.SetObject(ref assetRef, ref referencesSame, elementProperty, obj, fieldInfo, m_label.text, out guid))
TriggerOnValidate(elementProperty);
else
{
arrayProperty.DeleteArrayElementAtIndex(arrayProperty.arraySize - 1);
arrayProperty.serializedObject.ApplyModifiedProperties();
arrayProperty.serializedObject.Update();
}
}
}
}
}
internal void DragAndDropNotFromAddressableGroupWindow(string[] paths, string guid, SerializedProperty property, AddressableAssetSettings aaSettings)
{
if (paths.Length == 1)
{
string path = paths[0];
if (AddressableAssetUtility.IsInResources(path))
Addressables.LogWarning(
"Cannot use an AssetReference on an asset in Resources. Move asset out of Resources first. ");
else if (!AddressableAssetUtility.IsPathValidForEntry(path))
Addressables.LogWarning("Dragged asset is not valid as an Asset Reference. " + path);
else
{
Object obj;
if (DragAndDrop.objectReferences != null && DragAndDrop.objectReferences.Length == 1)
obj = DragAndDrop.objectReferences[0];
else
obj = AssetDatabase.LoadAssetAtPath<Object>(path);
if (AssetReferenceDrawerUtilities.SetObject(ref m_AssetRefObject, ref m_ReferencesSame, property,
obj, fieldInfo, m_label.text, out guid))
{
TriggerOnValidate(property);
aaSettings = AddressableAssetSettingsDefaultObject.GetSettings(true);
var entry = aaSettings.FindAssetEntry(guid);
if (entry == null && !string.IsNullOrEmpty(guid))
{
string assetName;
if (!aaSettings.IsAssetPathInAddressableDirectory(path, out assetName))
{
aaSettings.CreateOrMoveEntry(guid, aaSettings.DefaultGroup);
newGuid = guid;
}
}
}
}
}
else if (fieldInfo.FieldType.IsArray || fieldInfo.FieldType.IsAssignableFrom(typeof(List<AssetReference>)))
{
string arrayName = SerializedPropertyExtensions.GetPropertyPathArrayName(property.propertyPath);
SerializedProperty arrayProperty = property.serializedObject.FindProperty(arrayName);
for (int i = 0; i < paths.Length; i++)
{
string path = paths[i];
if (AddressableAssetUtility.IsInResources(path))
Addressables.LogWarning("Cannot use an AssetReference on an asset in Resources. Move asset out of Resources first.");
else if (!AddressableAssetUtility.IsPathValidForEntry(path))
Addressables.LogWarning("Dragged asset is not valid as an Asset Reference. " + path);
else
{
arrayProperty.InsertArrayElementAtIndex(arrayProperty.arraySize);
arrayProperty.serializedObject.ApplyModifiedProperties();
arrayProperty.serializedObject.Update();
SerializedProperty elementProperty = arrayProperty.GetArrayElementAtIndex(arrayProperty.arraySize - 1);
string labelText = "";
AssetReference assetRef = elementProperty.GetActualObjectForSerializedProperty<AssetReference>(fieldInfo, ref labelText);
bool referencesSame = false;
Object obj = (DragAndDrop.objectReferences != null && i < DragAndDrop.objectReferences.Length) ? DragAndDrop.objectReferences[i] : AssetDatabase.LoadAssetAtPath<Object>(path);
if (AssetReferenceDrawerUtilities.SetObject(ref assetRef, ref referencesSame, elementProperty,
obj, fieldInfo, m_label.text, out guid))
{
TriggerOnValidate(elementProperty);
aaSettings = AddressableAssetSettingsDefaultObject.GetSettings(true);
var entry = aaSettings.FindAssetEntry(guid);
if (entry == null && !string.IsNullOrEmpty(guid) && !aaSettings.IsAssetPathInAddressableDirectory(path, out string assetName))
aaSettings.CreateOrMoveEntry(guid, aaSettings.DefaultGroup);
}
else
{
arrayProperty.DeleteArrayElementAtIndex(arrayProperty.arraySize - 1);
arrayProperty.serializedObject.ApplyModifiedProperties();
arrayProperty.serializedObject.Update();
}
}
}
}
}
private void DrawSubAssetsControl(SerializedProperty property, List<Object> subAssets, bool isEnterKeyPressed)
{
var objRect = new Rect(assetDropDownRect.xMax, assetDropDownRect.y, assetDropDownRect.width, assetDropDownRect.height);
float pickerWidth = 12f;
Rect pickerRect = objRect;
pickerRect.width = pickerWidth;
pickerRect.x = objRect.xMax - pickerWidth * 1.33f;
bool multipleSubassets = false;
string controlName = GetControlName(k_SubFieldControlPrefix, property.name);
// Check if targetObjects have multiple different selected
if (property.serializedObject.targetObjects.Length > 1)
multipleSubassets = AssetReferenceDrawerUtilities.CheckTargetObjectsSubassetsAreDifferent(property, m_AssetRefObject.SubObjectName, fieldInfo, m_label.text);
bool isPickerPressed = Event.current.type == EventType.MouseDown && Event.current.button == 0 && pickerRect.Contains(Event.current.mousePosition);
bool enterKeyRequestsPopup = isEnterKeyPressed && (controlName == UnityEngine.GUI.GetNameOfFocusedControl());
if (isPickerPressed || enterKeyRequestsPopup)
{
// Do custom popup with scroll to pick subasset
if (m_SubassetPopup == null || m_SubassetPopup.m_property != property)
{
m_SubassetPopup = CreateSubAssetPopup(property, subAssets ?? AssetReferenceDrawerUtilities.GetSubAssetsList(m_AssetRefObject), Event.current.mousePosition);
}
}
if (m_SubassetPopup != null && subassetPickerSelectionChanged)
{
m_SubassetPopup.UpdateSubAssets();
}
// Show selected name
GUIContent nameSelected = new GUIContent("--");
if (!multipleSubassets)
nameSelected.text = AssetReferenceDrawerUtilities.FormatName(m_AssetRefObject.SubObjectName);
UnityEngine.GUI.SetNextControlName(controlName);
if (EditorGUI.DropdownButton(objRect, nameSelected, FocusType.Keyboard, EditorStyles.objectField))
UnityEngine.GUI.FocusControl(controlName);
// Draw picker arrow
DrawCaret(pickerRect);
}
internal void GetSelectedSubassetIndex(List<Object> subAssets, out int selIndex, out string[] objNames)
{
var subAssetNames = subAssets.Select(sa => sa == null ? "<none>" : $"{AssetReferenceDrawerUtilities.FormatName(sa.name)}:{sa.GetType()}").ToList();
objNames = subAssetNames.ToArray();
selIndex = subAssetNames.IndexOf($"{m_AssetRefObject.SubObjectName}:{m_AssetRefObject.SubOjbectType}");
if (selIndex == -1)
selIndex = 0;
}
SubassetPopup CreateSubAssetPopup(SerializedProperty property, List<Object> subAssets, Vector2 mouseLocation)
{
GetSelectedSubassetIndex(subAssets, out int selIndex, out string[] objNames);
var subassetPopupWindow = EditorWindow.GetWindow<SubassetPopup>(true, "Select Subasset");
subassetPopupWindow.Initialize(selIndex, objNames, subAssets, property, this, mouseLocation);
return subassetPopupWindow;
}
}
class SubassetPopup : EditorWindow
{
internal int SelectedIndex = 0;
internal SerializedProperty m_property;
private string[] m_objNames;
private List<Object> m_subAssets;
private AssetReferenceDrawer m_drawer;
private Vector2 m_scrollPosition;
public void Initialize(int selIndex, string[] objNames, List<Object> subAssets, SerializedProperty property, AssetReferenceDrawer drawer, Vector2 mouseLocation)
{
SelectedIndex = selIndex;
m_objNames = objNames;
m_property = property;
m_drawer = drawer;
m_subAssets = subAssets;
Rect r = this.position;
mouseLocation = GUIUtility.GUIToScreenPoint(mouseLocation);
r.position = mouseLocation;
this.position = r;
}
private void OnLostFocus()
{
Close();
}
public void UpdateSubAssets()
{
if (m_drawer.subassetPickerSelectionChanged)
{
if (!AssetReferenceDrawerUtilities.SetSubAssets(m_property, m_subAssets[SelectedIndex], m_drawer.fieldInfo, m_drawer.m_label.text))
{
Debug.LogError("Unable to set all of the objects selected subassets");
}
else
{
m_property.serializedObject.ApplyModifiedProperties();
m_property.serializedObject.Update();
m_property.FindPropertyRelative("m_EditorAssetChanged").boolValue = false;
}
m_drawer.subassetPickerSelectionChanged = false;
}
}
private void HandleKeyboardEvents()
{
if (Event.current.type == EventType.KeyDown && Event.current.isKey)
{
if (Event.current.keyCode == KeyCode.DownArrow && SelectedIndex < m_objNames.Length - 1)
{
m_property.serializedObject.ApplyModifiedPropertiesWithoutUndo(); // quickly shifting between the selected assets prevents some modifications from being applied
ChangeSelectedAsset(SelectedIndex + 1);
}
else if (Event.current.keyCode == KeyCode.UpArrow && SelectedIndex > 0)
{
m_property.serializedObject.ApplyModifiedPropertiesWithoutUndo();
ChangeSelectedAsset(SelectedIndex - 1);
}
else if (Event.current.keyCode == KeyCode.KeypadEnter || Event.current.keyCode == KeyCode.Return)
{
Close();
}
}
}
private void ChangeSelectedAsset(int newIndex)
{
if (SelectedIndex != newIndex)
{
SelectedIndex = newIndex;
m_drawer.subassetPickerSelectionChanged = true;
UpdateSubAssets();
}
}
private void OnGUI()
{
Rect rect = this.position;
var labelStyle = new GUIStyle(UnityEngine.GUI.skin.label);
labelStyle.contentOffset = new Vector2(10, 0);
var selectedLabelStyle = new GUIStyle(labelStyle);
Color selectionColor = new Color(0.3f, 0.5f, 0.7f);
selectedLabelStyle.normal.textColor = selectionColor;
selectedLabelStyle.hover.textColor = selectionColor;
selectedLabelStyle.active.textColor = selectionColor;
HandleKeyboardEvents();
EditorGUILayout.BeginVertical();
m_scrollPosition = EditorGUILayout.BeginScrollView(m_scrollPosition, GUILayout.Width(rect.width), GUILayout.Height(rect.height));
for (int i = 0; i < m_objNames.Length; i++)
{
if (i == SelectedIndex)
GUILayout.Label(m_objNames[i], selectedLabelStyle);
else
GUILayout.Label(m_objNames[i], labelStyle);
if (GUILayoutUtility.GetLastRect().Contains(Event.current.mousePosition) && Event.current.clickCount > 0)
{
if (Event.current.clickCount == 2)
Close();
else
ChangeSelectedAsset(i);
break;
}
}
EditorGUILayout.EndScrollView();
EditorGUILayout.EndVertical();
}
}
class AssetReferencePopup : EditorWindow
{
AssetReferenceTreeView m_Tree;
TreeViewState m_TreeState;
bool m_ShouldClose;
void ForceClose()
{
m_ShouldClose = true;
}
string m_CurrentName = string.Empty;
AssetReferenceDrawer m_Drawer;
string m_GUID;
string m_NonAddressedAsset;
SearchField m_SearchField;
public void Initialize(AssetReferenceDrawer drawer, string guid, string nonAddressedAsset, bool openedByEnterKey, Vector2 mouseLocation)
{
m_Drawer = drawer;
m_GUID = guid;
m_NonAddressedAsset = nonAddressedAsset;
m_SearchField = new SearchField();
m_ShouldClose = false;
Rect r = this.position;
mouseLocation = GUIUtility.GUIToScreenPoint(mouseLocation);
r.position = mouseLocation;
this.position = r;
m_SearchField.SetFocus();
m_SearchField.downOrUpArrowKeyPressed += () => { m_Tree.SetFocus(); };
if (m_Tree != null)
m_Tree.SetInitialSelection(m_Drawer.m_AssetName);
}
private void OnLostFocus()
{
ForceClose();
}
private void OnGUI()
{
Rect rect = this.position;
int border = 4;
int topPadding = 12;
int searchHeight = 20;
var searchRect = new Rect(border, topPadding, rect.width - border * 2, searchHeight);
var remainTop = topPadding + searchHeight + border;
var remainingRect = new Rect(border, topPadding + searchHeight + border, rect.width - border * 2, rect.height - remainTop - border);
m_CurrentName = m_SearchField.OnGUI(searchRect, m_CurrentName);
if (m_Tree == null)
{
if (m_TreeState == null)
m_TreeState = new TreeViewState();
m_Tree = new AssetReferenceTreeView(m_TreeState, m_Drawer, this, m_GUID, m_NonAddressedAsset);
m_Tree.Reload();
m_Tree.SetInitialSelection(m_Drawer.m_AssetName);
}
bool isKeyPressed = Event.current.type == EventType.KeyDown && Event.current.isKey;
bool isEnterKeyPressed = isKeyPressed && (Event.current.keyCode == KeyCode.KeypadEnter || Event.current.keyCode == KeyCode.Return);
bool isUpOrDownArrowPressed = isKeyPressed && (Event.current.keyCode == KeyCode.UpArrow || Event.current.keyCode == KeyCode.DownArrow);
if (isUpOrDownArrowPressed)
m_Tree.SetFocus();
m_Tree.searchString = m_CurrentName;
m_Tree.IsEnterKeyPressed = isEnterKeyPressed;
m_Tree.OnGUI(remainingRect);
if (m_ShouldClose || isEnterKeyPressed)
{
GUIUtility.hotControl = 0;
Close();
}
}
sealed class AssetRefTreeViewItem : TreeViewItem
{
public string AssetPath;
private string m_Guid;
public string Guid
{
get
{
if (string.IsNullOrEmpty(m_Guid))
m_Guid = AssetDatabase.AssetPathToGUID(AssetPath);
return m_Guid;
}
}
public AssetRefTreeViewItem(int id, int depth, string displayName, string path)
: base(id, depth, displayName)
{
AssetPath = path;
icon = AssetDatabase.GetCachedIcon(path) as Texture2D;
}
}
internal class AssetReferenceTreeView : TreeView
{
AssetReferenceDrawer m_Drawer;
AssetReferencePopup m_Popup;
string m_GUID;
string m_NonAddressedAsset;
Texture2D m_WarningIcon;
internal bool IsEnterKeyPressed { get; set; }
public AssetReferenceTreeView(TreeViewState state, AssetReferenceDrawer drawer, AssetReferencePopup popup, string guid, string nonAddressedAsset)
: base(state)
{
m_Drawer = drawer;
m_Popup = popup;
showBorder = true;
showAlternatingRowBackgrounds = true;
m_GUID = guid;
m_NonAddressedAsset = nonAddressedAsset;
m_WarningIcon = EditorGUIUtility.FindTexture("console.warnicon");
}
public override void OnGUI(Rect rect)
{
base.OnGUI(rect);
if (IsEnterKeyPressed && HasFocus())
{
m_Popup.ForceClose();
}
}
protected override bool CanMultiSelect(TreeViewItem item)
{
return false;
}
protected override void DoubleClickedItem(int id)
{
var assetRefItem = FindItem(id, rootItem) as AssetRefTreeViewItem;
if (assetRefItem != null && assetRefItem.Guid == m_GUID)
m_Popup.ForceClose();
else if (assetRefItem != null && !string.IsNullOrEmpty(assetRefItem.AssetPath))
{
m_Drawer.newGuid = assetRefItem.Guid;
if (string.IsNullOrEmpty(m_Drawer.newGuid))
m_Drawer.newGuid = assetRefItem.AssetPath;
}
else
{
m_Drawer.newGuid = AssetReferenceDrawer.noAssetString;
}
m_Popup.ForceClose();
}
protected override void SelectionChanged(IList<int> selectedIds)
{
if (selectedIds != null && selectedIds.Count == 1)
{
string oldGuid = m_Drawer.newGuid;
var assetRefItem = FindItem(selectedIds[0], rootItem) as AssetRefTreeViewItem;
if (assetRefItem != null && !string.IsNullOrEmpty(assetRefItem.AssetPath))
{
m_Drawer.newGuid = assetRefItem.Guid;
if (string.IsNullOrEmpty(m_Drawer.newGuid))
m_Drawer.newGuid = assetRefItem.AssetPath;
}
else
{
m_Drawer.newGuid = AssetReferenceDrawer.noAssetString;
}
SetFocus();
if (m_Drawer.assetProperty != null && oldGuid != null)
m_Drawer.ApplySelectionChanges(m_Drawer.assetProperty, AddressableAssetSettingsDefaultObject.Settings, ref oldGuid);
}
}
protected override IList<TreeViewItem> BuildRows(TreeViewItem root)
{
if (string.IsNullOrEmpty(searchString))
{
return base.BuildRows(root);
}
List<TreeViewItem> rows = new List<TreeViewItem>();
foreach (var child in rootItem.children)
{
if (child.displayName.IndexOf(searchString, StringComparison.OrdinalIgnoreCase) >= 0)
rows.Add(child);
}
return rows;
}
protected override TreeViewItem BuildRoot()
{
var root = new TreeViewItem(-1, -1);
var aaSettings = AddressableAssetSettingsDefaultObject.Settings;
if (aaSettings == null)
{
var message = "Use 'Window->Addressables' to initialize.";
root.AddChild(new AssetRefTreeViewItem(message.GetHashCode(), 0, message, string.Empty));
}
else
{
if (!string.IsNullOrEmpty(m_NonAddressedAsset))
{
var item = new AssetRefTreeViewItem(m_NonAddressedAsset.GetHashCode(), 0,
AssetReferenceDrawer.forceAddressableString + m_NonAddressedAsset, AssetReferenceDrawer.forceAddressableString);
item.icon = m_WarningIcon;
root.AddChild(item);
}
root.AddChild(new AssetRefTreeViewItem(AssetReferenceDrawer.noAssetString.GetHashCode(), 0, AssetReferenceDrawer.noAssetString, string.Empty));
var allAssets = new List<IReferenceEntryData>();
aaSettings.GatherAllAssetReferenceDrawableEntries(allAssets);
foreach (var entry in allAssets)
{
if (!entry.IsInResources &&
m_Drawer.ValidateAsset(entry))
{
var child = new AssetRefTreeViewItem(entry.AssetPath.GetHashCode(), 0, entry.address, entry.AssetPath);
root.AddChild(child);
}
}
}
return root;
}
internal void SetInitialSelection(string assetString)
{
foreach (var child in rootItem.children)
{
if (child.displayName.IndexOf(assetString, StringComparison.OrdinalIgnoreCase) >= 0)
{
SetSelection(new List<int> {child.id});
return;
}
}
}
}
}
/// <summary>
/// Used to manipulate data from a serialized property.
/// </summary>
public static class SerializedPropertyExtensions
{
/// <summary>
/// Used to extract the target object from a serialized property.
/// </summary>
/// <typeparam name="T">The type of the object to extract.</typeparam>
/// <param name="property">The property containing the object.</param>
/// <param name="field">The field data.</param>
/// <param name="label">The label name.</param>
/// <returns>Returns the target object type.</returns>
public static T GetActualObjectForSerializedProperty<T>(this SerializedProperty property, FieldInfo field, ref string label)
{
try
{
if (property == null || field == null)
return default(T);
var serializedObject = property.serializedObject;
if (serializedObject == null)
{
return default(T);
}
var targetObject = serializedObject.targetObject;
if (property.depth > 0)
{
var slicedName = property.propertyPath.Split('.').ToList();
List<int> arrayCounts = new List<int>();
for (int index = 0; index < slicedName.Count; index++)
{
arrayCounts.Add(-1);
var currName = slicedName[index];
#if NET_UNITY_4_8
if (currName.EndsWith(']'))
#else
if (currName.EndsWith("]"))
#endif
{
var arraySlice = currName.Split('[', ']');
if (arraySlice.Length >= 2)
{
arrayCounts[index - 2] = Convert.ToInt32(arraySlice[1]);
slicedName[index] = string.Empty;
slicedName[index - 1] = string.Empty;
}
}
}
while (string.IsNullOrEmpty(slicedName.Last()))
{
int i = slicedName.Count - 1;
slicedName.RemoveAt(i);
arrayCounts.RemoveAt(i);
}
#if NET_UNITY_4_8
if (property.propertyPath.EndsWith(']'))
#else
if (property.propertyPath.EndsWith("]"))
#endif
{
var slice = property.propertyPath.Split('[', ']');
if (slice.Length >= 2)
label = "Element " + slice[slice.Length - 2];
}
return DescendHierarchy<T>(targetObject, slicedName, arrayCounts, 0);
}
var obj = field.GetValue(targetObject);
return (T)obj;
}
catch
{
return default(T);
}
}
static T DescendHierarchy<T>(object targetObject, List<string> splitName, List<int> splitCounts, int depth)
{
if (depth >= splitName.Count)
return default(T);
var currName = splitName[depth];
if (string.IsNullOrEmpty(currName))
return DescendHierarchy<T>(targetObject, splitName, splitCounts, depth + 1);
int arrayIndex = splitCounts[depth];
var newField = targetObject.GetType().GetField(currName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
if (newField == null)
{
Type baseType = targetObject.GetType().BaseType;
while (baseType != null && newField == null)
{
newField = baseType.GetField(currName,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
baseType = baseType.BaseType;
}
}
var newObj = newField.GetValue(targetObject);
if (depth == splitName.Count - 1)
{
T actualObject = default(T);
if (arrayIndex >= 0)
{
if (newObj.GetType().IsArray && ((System.Array)newObj).Length > arrayIndex)
actualObject = (T)((System.Array)newObj).GetValue(arrayIndex);
var newObjList = newObj as IList;
if (newObjList != null && newObjList.Count > arrayIndex)
{
actualObject = (T)newObjList[arrayIndex];
//if (actualObject == null)
// actualObject = new T();
}
}
else
{
actualObject = (T)newObj;
}
return actualObject;
}
else if (arrayIndex >= 0)
{
if (newObj is IList)
{
IList list = (IList)newObj;
newObj = list[arrayIndex];
}
else if (newObj is System.Array)
{
System.Array a = (System.Array)newObj;
newObj = a.GetValue(arrayIndex);
}
}
return DescendHierarchy<T>(newObj, splitName, splitCounts, depth + 1);
}
internal static string GetPropertyPathArrayName(string propertyPath)
{
#if NET_UNITY_4_8
if (propertyPath.EndsWith(']'))
#else
if (propertyPath.EndsWith("]"))
#endif
{
int leftBracket = propertyPath.LastIndexOf('[');
if (leftBracket > -1)
{
string arrayString = propertyPath.Substring(0, leftBracket);
if (arrayString.EndsWith(".data", StringComparison.OrdinalIgnoreCase))
return arrayString.Substring(0, arrayString.Length - 5); // remove ".data"
}
}
return string.Empty;
}
}
/// <summary>
/// Used to restrict a class to only allow items with specific labels.
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public class AssetReferenceSurrogateAttribute : Attribute
{
/// <summary>
/// The type of the attribute.
/// </summary>
public Type TargetType;
/// <summary>
/// Construct a new AssetReferenceSurrogateAttribute.
/// </summary>
/// <param name="type">The Type of the class in question.</param>
public AssetReferenceSurrogateAttribute(Type type)
{
TargetType = type;
}
}
/// <summary>
/// Surrogate to AssetReferenceUIRestriction.
/// This surrogate class provides the editor-side implementation of AssetReferenceUIRestriction attribute
/// Used to restrict an AssetReference field or property to only allow items with specific labels. This is only enforced through the UI.
/// </summary>
[AssetReferenceSurrogate(typeof(AssetReferenceUIRestriction))]
public class AssetReferenceUIRestrictionSurrogate : AssetReferenceUIRestriction
{
AssetReferenceUIRestriction data;
/// <summary>
/// Sets the AssetReferenceUIRestriction for this surrogate
/// </summary>
/// <param name="initData">To initialize AssetReferenceUIRestriction for surrogate</param>
public virtual void Init(AssetReferenceUIRestriction initData)
{
data = initData;
}
/// <summary>
/// Validates the referenced asset allowable for this asset reference.
/// </summary>
/// <param name="obj">The Object to validate.</param>
/// <returns>Whether the referenced asset is valid.</returns>
public override bool ValidateAsset(Object obj)
{
return data.ValidateAsset(obj);
}
internal virtual bool ValidateAsset(IReferenceEntryData entryData)
{
return data.ValidateAsset(entryData?.AssetPath);
}
}
/// <summary>
/// Surrogate to AssetReferenceUILabelRestriction
/// This surrogate class provides the editor-side implementation of AssetReferenceUILabelRestriction attribute
/// Used to restrict an AssetReference field or property to only allow items wil specific labels. This is only enforced through the UI.
/// </summary>
[AssetReferenceSurrogate(typeof(AssetReferenceUILabelRestriction))]
public class AssetReferenceUILabelRestrictionSurrogate : AssetReferenceUIRestrictionSurrogate
{
AssetReferenceUILabelRestriction data;
/// <summary>
/// Sets the AssetReferenceUILabelRestriction for this surrogate
/// </summary>
/// <param name="initData">To initialize AssetReferenceUILabelRestriction field</param>
public override void Init(AssetReferenceUIRestriction initData)
{
data = initData as AssetReferenceUILabelRestriction;
}
/// <inheritdoc/>
public override bool ValidateAsset(Object obj)
{
var path = AssetDatabase.GetAssetOrScenePath(obj);
return ValidateAsset(path);
}
/// <inheritdoc/>
public override bool ValidateAsset(string path)
{
if (AddressableAssetSettingsDefaultObject.Settings == null)
return false;
var guid = AssetDatabase.AssetPathToGUID(path);
var entry = AddressableAssetSettingsDefaultObject.Settings.FindAssetEntry(guid, true);
return ValidateAsset(entry);
}
internal override bool ValidateAsset(IReferenceEntryData entry)
{
if (entry != null)
{
foreach (var label in data.m_AllowedLabels)
{
if (entry.labels.Contains(label))
return true;
}
}
return false;
}
///<inheritdoc/>
public override string ToString()
{
return data.ToString();
}
}
/// <summary>
/// Utility Class
/// </summary>
public class AssetReferenceUtility
{
/// <summary>
/// Finds surrogate class for an Assembly with a particular TargetType
/// </summary>
/// <param name="targetType">Target Type to search</param>
/// <returns>Type of the surrogate found for the Assembly with a particular Target Type.</returns>
public static Type GetSurrogate(Type targetType)
{
if (targetType == null)
{
Debug.LogError("targetType cannot be null");
return null;
}
Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();
List<Type> typesList = new List<Type>();
foreach (Assembly assem in assemblies)
{
var assemblyTypeList = GatherTargetTypesFromAssembly(assem, targetType, out bool concreteTypeFound);
if (concreteTypeFound == true)
return assemblyTypeList[0];
typesList.AddRange(assemblyTypeList);
}
if (typesList.Count == 0)
return null;
typesList.Sort(AssetReferenceUtility.CompareTypes);
return typesList[0];
}
static int CompareTypes(object x, object y)
{
Type t1 = (Type)x;
Type t2 = (Type)y;
if (t1 == t2)
return 0;
else if (t1.IsAssignableFrom(t2))
return 1;
else
return -1;
}
private static List<Type> GatherTargetTypesFromAssembly(Assembly assembly, Type targetType, out bool concreteTypeFound)
{
List<Type> assignableTypesList = new List<Type>();
var typeList = assembly.GetTypes().Where(attrType => typeof(AssetReferenceUIRestrictionSurrogate).IsAssignableFrom(attrType)).ToList();
foreach (var type in typeList)
{
var customAttribute = type.GetCustomAttribute<AssetReferenceSurrogateAttribute>();
if (customAttribute == null)
continue;
if (customAttribute.TargetType == targetType)
{
assignableTypesList.Clear();
assignableTypesList.Add(type);
concreteTypeFound = true;
return assignableTypesList;
}
if (customAttribute.TargetType.IsAssignableFrom(targetType))
{
assignableTypesList.Add(type);
}
}
concreteTypeFound = false;
return assignableTypesList;
}
}
}