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Merge pull request #1733 from CitiesSkylinesMods/improvement/customiz…
…able-scroll-behavior-closed-dropdown Custom Dropdown - prevent unwanted option change on mouse wheel scrool
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Original file line number | Diff line number | Diff line change |
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namespace TrafficManager.UI.Helpers; | ||
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using ColossalFramework.UI; | ||
using UnityEngine; | ||
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/// <summary> | ||
/// Custom version of vanilla dropdown with customizable mouse wheel behavior on hover closed dropdown control | ||
/// </summary> | ||
public class CustomDownDown : UIDropDown { | ||
public static GameObject ScrollTemplate; | ||
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/// <summary> | ||
/// Use mouse wheel when dropdown is closed to change selection | ||
/// Unlike in vanilla, default is False | ||
/// </summary> | ||
public bool MouseWheelSelectItem { get; set; } = false; | ||
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public override void OnDestroy() { | ||
if (ScrollTemplate) { | ||
Destroy(ScrollTemplate); | ||
ScrollTemplate = null; | ||
} | ||
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base.OnDestroy(); | ||
} | ||
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protected override void OnMouseWheel(UIMouseEventParameter p) { | ||
if (MouseWheelSelectItem) { | ||
// do default action | ||
base.OnMouseWheel(p); | ||
} else { | ||
// mark as used to prevent scrolling page or selecting different items in the dropdown! | ||
p.Use(); | ||
} | ||
} | ||
} |
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