33 lines
753 B
C#
33 lines
753 B
C#
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using UnityEngine;
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using System;
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using UnityEngine.UIElements;
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namespace UnityEditor.ShaderGraph.Drawing
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{
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class Scrollable : MouseManipulator
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{
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Action<float> m_Handler;
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public Scrollable(Action<float> handler)
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{
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m_Handler = handler;
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}
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protected override void RegisterCallbacksOnTarget()
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{
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target.RegisterCallback<WheelEvent>(HandleMouseWheelEvent);
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}
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protected override void UnregisterCallbacksFromTarget()
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{
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target.UnregisterCallback<WheelEvent>(HandleMouseWheelEvent);
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}
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void HandleMouseWheelEvent(WheelEvent evt)
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{
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m_Handler(evt.delta.y);
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evt.StopPropagation();
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}
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}
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}
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