127 lines
3.0 KiB
C#
127 lines
3.0 KiB
C#
#if ADDRESSABLES && UI_ELEMENTS
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using UnityEngine;
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using UnityEngine.UIElements;
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using System;
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using System.Collections;
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using System.ComponentModel;
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using UnityEngine.AddressableAssets;
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using UnityEngine.ResourceManagement.AsyncOperations;
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public class MultiSelectChips : VisualElement
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{
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public string LabelText
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{
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get => label.text;
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set
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{
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if (!string.IsNullOrEmpty(value))
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{
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if (label == null)
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{
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InitLabel();
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}
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label.text = value;
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}
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else if (label != null)
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{
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label.RemoveFromHierarchy();
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label = null;
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}
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}
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}
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public IList ItemsSource
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{
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get => itemsSource;
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set
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{
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itemsSource = value;
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UpdateItems();
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}
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}
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private Label label;
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private AsyncOperationHandle<VisualTreeAsset> uxmlHandle, itemUxmlHandle;
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private VisualTreeAsset itemPrefab;
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private IList itemsSource;
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public new class UxmlFactory : UxmlFactory<MultiSelectChips, UxmlTraits>
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{
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}
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public new class UxmlTraits : VisualElement.UxmlTraits
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{
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private readonly UxmlStringAttributeDescription label;
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public UxmlTraits()
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{
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label = new()
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{
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name = "label"
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};
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}
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public override void Init(VisualElement ve, IUxmlAttributes bag, CreationContext cc)
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{
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base.Init(ve, bag, cc);
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((MultiSelectChips)ve).LabelText = label.GetValueFromBag(bag, cc);
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}
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}
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public MultiSelectChips() : base()
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{
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uxmlHandle = Addressables.LoadAssetAsync<VisualTreeAsset>("NegUiToolkits/MultiSelectChips.uxml");
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itemUxmlHandle = Addressables.LoadAssetAsync<VisualTreeAsset>("NegUiToolkits/MultiSelectChipsItem.uxml");
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uxmlHandle.Completed += OnUxmlLoaded;
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itemUxmlHandle.Completed += OnItemUxmlLoaded;
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}
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public void UpdateItems()
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{
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if (itemPrefab == null)
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return;
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}
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private void InitLabel()
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{
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label = new Label()
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{
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pickingMode = PickingMode.Ignore
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};
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Add(label);
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}
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private void OnUxmlLoaded(AsyncOperationHandle<VisualTreeAsset> operation)
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{
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if (operation.Status == AsyncOperationStatus.Succeeded)
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{
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Add(operation.Result.Instantiate());
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Addressables.Release(uxmlHandle);
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}
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else
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{
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Debug.LogError($"Asset failed to load.");
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}
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}
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private void OnItemUxmlLoaded(AsyncOperationHandle<VisualTreeAsset> operation)
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{
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if (operation.Status == AsyncOperationStatus.Succeeded)
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{
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itemPrefab = operation.Result;
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Addressables.Release(itemUxmlHandle);
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UpdateItems();
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}
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else
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{
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Debug.LogError($"Asset failed to load.");
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}
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}
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}
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#endif |