Add multiSelectChips

UiToolkit.meta

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UiToolkit/MultiSelectChips.meta

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UiToolkit/MultiSelectChips/MultiSelectChips.cs

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

UiToolkit/MultiSelectChips/MultiSelectChips.cs.meta

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UiToolkit/MultiSelectChips/MultiSelectChips.uxml

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+<ui:UXML xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" xsi="http://www.w3.org/2001/XMLSchema-instance" engine="UnityEngine.UIElements" editor="UnityEditor.UIElements" noNamespaceSchemaLocation="../../../../../UIElementsSchema/UIElements.xsd" editor-extension-mode="False">
+    <ui:ListView focusable="true" show-add-remove-footer="false" horizontal-scrolling="true" />
+    <ui:VisualElement style="flex-direction: row; flex-wrap: wrap;">
+        <ui:Button text="+" display-tooltip-when-elided="true" name="AddItem" />
+    </ui:VisualElement>
+</ui:UXML>

UiToolkit/MultiSelectChips/MultiSelectChips.uxml.meta

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