85 lines
2.4 KiB
C#
85 lines
2.4 KiB
C#
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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using TMPro;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Microsoft.MixedReality.Toolkit.Experimental.UI
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{
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/// <summary>
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/// Represents a key on the keyboard that has a string value for input.
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/// </summary>
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[RequireComponent(typeof(Button))]
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public class KeyboardValueKey : MonoBehaviour
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{
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/// <summary>
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/// The default string value for this key.
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/// </summary>
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[Experimental]
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public string Value;
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/// <summary>
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/// The shifted string value for this key.
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/// </summary>
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public string ShiftValue;
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/// <summary>
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/// Reference to child text element.
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/// </summary>
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private TextMeshProUGUI m_Text;
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/// <summary>
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/// Reference to the GameObject's button component.
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/// </summary>
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private Button m_Button;
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/// <summary>
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/// Get the button component.
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/// </summary>
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private void Awake()
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{
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m_Button = GetComponent<Button>();
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}
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/// <summary>
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/// Initialize key text, subscribe to the onClick event, and subscribe to keyboard shift event.
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/// </summary>
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private void Start()
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{
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m_Text = gameObject.GetComponentInChildren<TextMeshProUGUI>();
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m_Text.text = Value;
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m_Button.onClick.RemoveAllListeners();
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m_Button.onClick.AddListener(FireAppendValue);
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NonNativeKeyboard.Instance.OnKeyboardShifted += Shift;
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}
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/// <summary>
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/// Method injected into the button's onClick listener.
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/// </summary>
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private void FireAppendValue()
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{
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NonNativeKeyboard.Instance.AppendValue(this);
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}
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/// <summary>
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/// Called by the Keyboard when the shift key is pressed. Updates the text for this key using the Value and ShiftValue fields.
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/// </summary>
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/// <param name="isShifted">Indicates the state of shift, the key needs to be changed to.</param>
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public void Shift(bool isShifted)
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{
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// Shift value should only be applied if a shift value is present.
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if (isShifted && !string.IsNullOrEmpty(ShiftValue))
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{
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m_Text.text = ShiftValue;
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}
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else
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{
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m_Text.text = Value;
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}
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}
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}
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}
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