331 lines
9.8 KiB
C#
331 lines
9.8 KiB
C#
using System;
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using System.IO;
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using TMPro;
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using UnityEngine;
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using UnityEngine.UI;
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/// <summary>
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/// 文件选择对话框
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/// 提供文件选择和保存功能
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/// </summary>
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public class FileSelectionDialog : BasePanel
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{
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[Header("UI组件")]
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public TextMeshProUGUI TitleText;
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public TMP_InputField FilePathInput; // 文件路径输入框
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public Button BrowseButton; // 浏览按钮
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public Button ConfirmButton; // 确认按钮
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public Button CancelButton; // 取消按钮
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public TMP_Dropdown FileTypeDropdown; // 文件类型下拉框
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[Header("文件浏览")]
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public ScrollRect DirectoryScrollRect; // 目录滚动视图
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public Transform DirectoryContent; // 目录内容容器
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public GameObject DirectoryItemPrefab; // 目录项预制体
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public GameObject FileItemPrefab; // 文件项预制体
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private Action<string> _onConfirm;
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private Action _onCancel;
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private string _currentDirectory = Application.streamingAssetsPath;
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private string[] _fileFilters;
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private bool _isSaveMode;
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private string _defaultFileName;
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public override void Init()
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{
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InitializeButtons();
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_currentDirectory = Application.streamingAssetsPath;
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RefreshDirectoryView();
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}
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private void InitializeButtons()
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{
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if (BrowseButton != null)
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{
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BrowseButton.onClick.AddListener(OnBrowseClicked);
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}
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if (ConfirmButton != null)
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{
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ConfirmButton.onClick.AddListener(OnConfirmClicked);
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}
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if (CancelButton != null)
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{
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CancelButton.onClick.AddListener(OnCancelClicked);
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}
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if (FileTypeDropdown != null)
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{
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FileTypeDropdown.onValueChanged.AddListener(OnFileTypeChanged);
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}
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}
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/// <summary>
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/// 显示文件选择对话框
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/// </summary>
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public static void Show(string title, string fileFilter, Action<string> onConfirm, Action onCancel = null)
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{
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var dialog = EnhancedUIManager.Instance.ShowPanel<FileSelectionDialog>(UIPanelType.Dialog, true, true);
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if (dialog != null)
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{
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dialog.ShowFileDialog(title, fileFilter, false, "", onConfirm, onCancel);
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}
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}
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/// <summary>
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/// 显示文件保存对话框
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/// </summary>
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public static void ShowSave(string title, string fileFilter, string defaultFileName, Action<string> onConfirm, Action onCancel = null)
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{
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var dialog = EnhancedUIManager.Instance.ShowPanel<FileSelectionDialog>(UIPanelType.Dialog, true, true);
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if (dialog != null)
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{
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dialog.ShowFileDialog(title, fileFilter, true, defaultFileName, onConfirm, onCancel);
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}
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}
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private void ShowFileDialog(string title, string fileFilter, bool isSaveMode, string defaultFileName, Action<string> onConfirm, Action onCancel)
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{
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_onConfirm = onConfirm;
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_onCancel = onCancel;
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_isSaveMode = isSaveMode;
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_defaultFileName = defaultFileName;
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if (TitleText != null)
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{
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TitleText.text = title;
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}
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SetupFileFilters(fileFilter);
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if (_isSaveMode && !string.IsNullOrEmpty(_defaultFileName))
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{
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if (FilePathInput != null)
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{
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FilePathInput.text = Path.Combine(_currentDirectory, _defaultFileName);
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}
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}
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RefreshDirectoryView();
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}
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private void SetupFileFilters(string fileFilter)
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{
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if (FileTypeDropdown != null)
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{
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FileTypeDropdown.options.Clear();
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if (string.IsNullOrEmpty(fileFilter))
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{
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FileTypeDropdown.options.Add(new TMP_Dropdown.OptionData("所有文件 (*.*)", null));
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_fileFilters = new string[] { "*.*" };
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}
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else
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{
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// 解析文件过滤器 "描述|*.ext;*.ext2|描述2|*.ext3"
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string[] parts = fileFilter.Split('|');
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_fileFilters = new string[parts.Length / 2];
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for (int i = 0; i < parts.Length; i += 2)
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{
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if (i + 1 < parts.Length)
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{
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string description = parts[i];
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string extensions = parts[i + 1];
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FileTypeDropdown.options.Add(new TMP_Dropdown.OptionData(description, null));
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_fileFilters[i / 2] = extensions;
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}
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}
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}
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FileTypeDropdown.value = 0;
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FileTypeDropdown.RefreshShownValue();
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}
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}
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private void RefreshDirectoryView()
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{
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if (DirectoryContent == null) return;
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// 清空现有项目
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foreach (Transform child in DirectoryContent)
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{
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Destroy(child.gameObject);
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}
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try
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{
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// 添加返回上级目录项
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var parentDir = Directory.GetParent(_currentDirectory);
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if (parentDir != null)
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{
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CreateDirectoryItem("..", parentDir.FullName, true);
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}
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// 添加子目录
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string[] directories = Directory.GetDirectories(_currentDirectory);
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foreach (string dir in directories)
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{
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string dirName = Path.GetFileName(dir);
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CreateDirectoryItem(dirName, dir, false);
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}
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// 添加文件
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string[] files = Directory.GetFiles(_currentDirectory);
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foreach (string file in files)
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{
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if (IsFileMatchFilter(file))
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{
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string fileName = Path.GetFileName(file);
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CreateFileItem(fileName, file);
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}
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}
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}
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catch (Exception ex)
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{
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Debug.LogError($"刷新目录视图失败: {ex.Message}");
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}
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}
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private bool IsFileMatchFilter(string filePath)
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{
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if (_fileFilters == null || _fileFilters.Length == 0) return true;
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string selectedFilter = _fileFilters[FileTypeDropdown?.value ?? 0];
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if (selectedFilter == "*.*") return true;
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string[] extensions = selectedFilter.Split(';');
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string fileExtension = Path.GetExtension(filePath).ToLower();
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foreach (string ext in extensions)
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{
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string filterExt = ext.Replace("*", "").ToLower();
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if (fileExtension == filterExt) return true;
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}
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return false;
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}
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private void CreateDirectoryItem(string name, string path, bool isParent)
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{
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if (DirectoryItemPrefab == null) return;
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var item = Instantiate(DirectoryItemPrefab, DirectoryContent);
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var text = item.GetComponentInChildren<TextMeshProUGUI>();
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if (text != null)
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{
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text.text = isParent ? ".. (上级目录)" : $"[{name}]";
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}
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var button = item.GetComponent<Button>();
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if (button != null)
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{
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button.onClick.AddListener(() => {
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_currentDirectory = path;
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RefreshDirectoryView();
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UpdatePathInput();
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});
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}
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}
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private void CreateFileItem(string name, string path)
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{
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if (FileItemPrefab == null) return;
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var item = Instantiate(FileItemPrefab, DirectoryContent);
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var text = item.GetComponentInChildren<TextMeshProUGUI>();
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if (text != null)
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{
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text.text = name;
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}
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var button = item.GetComponent<Button>();
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if (button != null)
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{
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button.onClick.AddListener(() => {
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if (FilePathInput != null)
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{
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FilePathInput.text = path;
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}
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});
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}
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}
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private void UpdatePathInput()
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{
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if (FilePathInput != null)
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{
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if (_isSaveMode && !string.IsNullOrEmpty(_defaultFileName))
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{
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FilePathInput.text = Path.Combine(_currentDirectory, _defaultFileName);
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}
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else
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{
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FilePathInput.text = _currentDirectory;
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}
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}
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}
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private void OnBrowseClicked()
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{
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// 这里可以集成系统文件对话框，如果有需要的话
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Debug.Log("打开系统文件选择对话框");
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}
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private void OnConfirmClicked()
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{
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string selectedPath = FilePathInput?.text ?? "";
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if (string.IsNullOrEmpty(selectedPath))
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{
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ConfirmDialog.Show("提示", "请选择或输入文件路径", () => { });
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return;
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}
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if (_isSaveMode)
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{
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// 保存模式：检查目录是否存在
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string directory = Path.GetDirectoryName(selectedPath);
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if (!Directory.Exists(directory))
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{
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ConfirmDialog.Show("错误", "目录不存在", () => { });
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return;
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}
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}
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else
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{
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// 打开模式：检查文件是否存在
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if (!File.Exists(selectedPath))
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{
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ConfirmDialog.Show("错误", "文件不存在", () => { });
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return;
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}
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}
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_onConfirm?.Invoke(selectedPath);
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CloseDialog();
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}
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private void OnCancelClicked()
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{
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_onCancel?.Invoke();
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CloseDialog();
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}
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private void OnFileTypeChanged(int index)
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{
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RefreshDirectoryView();
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}
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private void CloseDialog()
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{
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EnhancedUIManager.Instance.HidePanel<FileSelectionDialog>(true);
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}
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protected override void OnBackButtonPressed()
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{
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OnCancelClicked();
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}
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} |