138 lines
3.5 KiB
C#
138 lines
3.5 KiB
C#
using System.Collections.Generic;
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/// <summary>
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/// UI导航栈管理器
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/// 负责管理窗口的入栈、出栈和返回历史
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/// </summary>
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public class UINavigationManager
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{
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#region Singleton
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private static UINavigationManager _instance;
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public static UINavigationManager Instance
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{
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get
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{
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if (_instance == null)
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{
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_instance = new UINavigationManager();
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}
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return _instance;
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}
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}
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private UINavigationManager() { }
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#endregion
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#region Fields
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/// <summary>
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/// 导航栈：存储窗口的返回历史
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/// </summary>
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private List<UIWindow> _navigationStack = new List<UIWindow>(8);
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/// <summary>
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/// 对外只读访问（用于兼容旧代码）
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/// </summary>
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public List<UIWindow> NavigationStack => _navigationStack;
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/// <summary>
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/// 栈中窗口数量
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/// </summary>
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public int Count => _navigationStack.Count;
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#endregion
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#region Stack Operations
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/// <summary>
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/// 处理窗口入栈（根据配置）
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/// </summary>
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/// <param name="window">窗口实例</param>
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/// <param name="stackMode">栈管理模式</param>
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public void HandleWindowOpen(UIWindow window, UIStackMode stackMode)
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{
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if (window == null) return;
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switch (stackMode)
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{
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case UIStackMode.None:
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// 不入栈（如Tips、HUD）
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break;
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case UIStackMode.Stackable:
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// 普通入栈
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if (!_navigationStack.Contains(window))
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{
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_navigationStack.Add(window);
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}
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break;
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case UIStackMode.Replace:
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// 替换栈顶
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if (_navigationStack.Count > 0)
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{
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var top = _navigationStack[_navigationStack.Count - 1];
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_navigationStack.RemoveAt(_navigationStack.Count - 1);
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}
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_navigationStack.Add(window);
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break;
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case UIStackMode.ClearAndPush:
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// 清空后入栈
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_navigationStack.Clear();
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_navigationStack.Add(window);
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break;
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}
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}
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/// <summary>
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/// 处理窗口关闭（出栈）
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/// </summary>
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/// <param name="window">窗口实例</param>
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public void HandleWindowClose(UIWindow window)
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{
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if (window != null && _navigationStack.Contains(window))
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{
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_navigationStack.Remove(window);
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}
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}
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/// <summary>
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/// 获取栈顶窗口
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/// </summary>
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public UIWindow GetTopWindow()
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{
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return _navigationStack.Count > 0 ? _navigationStack[_navigationStack.Count - 1] : null;
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}
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/// <summary>
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/// 获取栈顶的全屏窗口
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/// </summary>
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public UIWindow GetTopFullScreenWindow()
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{
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for (int i = _navigationStack.Count - 1; i >= 0; i--)
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{
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var window = _navigationStack[i];
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if (UIManager.Instance.CheckWindowIsFullScreen(window))
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{
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return window;
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}
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}
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return null;
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}
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/// <summary>
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/// 检查窗口是否在栈中
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/// </summary>
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public bool IsWindowInStack(UIWindow window)
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{
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return _navigationStack.Contains(window);
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}
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/// <summary>
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/// 清空栈
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/// </summary>
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public void Clear()
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{
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_navigationStack.Clear();
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}
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#endregion
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}
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