forked from Shardstone/trail-into-darkness
49 lines
2.0 KiB
C#
49 lines
2.0 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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namespace Jovian.PopupSystem.UI {
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/// <summary>
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/// Reference holder MonoBehaviour for popup triggers. Attach to any UI element with a
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/// Graphic component (Image, TMP_Text, etc.) that has Raycast Target enabled.
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/// Configure category, anchor side, and position mode in the Inspector.
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/// Forwards pointer events to the bound <see cref="PopupTriggerView"/>.
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/// </summary>
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public class PopupTrigger : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler {
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[SerializeField] PopupCategory category;
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[SerializeField] AnchorSide anchorSide = AnchorSide.Below;
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[SerializeField] PopupPositionMode positionMode = PopupPositionMode.AnchorToElement;
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PopupTriggerView handler;
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/// <summary>The popup category this trigger belongs to.</summary>
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public PopupCategory Category => category;
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/// <summary>Which side of this element the popup anchors to.</summary>
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public AnchorSide AnchorSide => anchorSide;
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/// <summary>Whether the popup anchors to this element or follows the mouse.</summary>
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public PopupPositionMode PositionMode => positionMode;
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/// <summary>The bound behavior handler. Null until <see cref="Bind"/> is called.</summary>
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public PopupTriggerView Handler => handler;
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/// <summary>
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/// Binds a <see cref="PopupTriggerView"/> to this trigger. Called automatically
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/// by <see cref="IPopupSystem.ScanTriggers"/> or <see cref="IPopupSystem.InitializeTriggersInChildren"/>.
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/// </summary>
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public void Bind(PopupTriggerView view) {
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handler = view;
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}
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/// <summary>Forwards pointer enter to the bound handler.</summary>
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public void OnPointerEnter(PointerEventData eventData) {
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handler?.OnPointerEnter(this);
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}
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/// <summary>Forwards pointer exit to the bound handler.</summary>
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public void OnPointerExit(PointerEventData eventData) {
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handler?.OnPointerExit(this);
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}
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}
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}
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