131 lines
4.6 KiB
C#
131 lines
4.6 KiB
C#
using System.Collections.ObjectModel;
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using System.Reflection;
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using NeumUI.Extensions;
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namespace NeumUI.Appearance;
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/// <summary>
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/// 管理资源字典
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/// </summary>
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internal class ResourceDictionaryManager
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{
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/// <summary>
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/// 获取命名空间，例如正在搜索的资源库。
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/// </summary>
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private string SearchNamespace { get; } = Assembly.GetExecutingAssembly().GetName().Name;
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/// <summary>
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/// 查找资源 <see cref="ResourceDictionary"/>
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/// </summary>
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/// <param name="resourceLookup">任何部分的资源名称。</param>
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/// <returns><see cref="ResourceDictionary"/>, <see langword="null"/>如果不存在，返回null</returns>
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public ResourceDictionary? LookupDictionary(string resourceLookup)
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{
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Collection<ResourceDictionary> applicationDictionaries = ThemeManager.Current.Resources.MergedDictionaries;
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if (applicationDictionaries.Count == 0)
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{
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return null;
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}
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foreach (var t in applicationDictionaries)
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{
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string resourceDictionaryUri;
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if (t?.Source != null)
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{
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resourceDictionaryUri = t.Source.ToString();
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if (resourceDictionaryUri.Contains(SearchNamespace, StringComparison.OrdinalIgnoreCase) &&
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resourceDictionaryUri.Contains(resourceLookup, StringComparison.OrdinalIgnoreCase))
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{
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return t;
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}
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}
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foreach (var t1 in t!.MergedDictionaries)
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{
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if (t1?.Source == null)
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{
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continue;
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}
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resourceDictionaryUri = t1.Source.ToString();
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if (resourceDictionaryUri.Contains(SearchNamespace, StringComparison.OrdinalIgnoreCase)&&
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resourceDictionaryUri.Contains(resourceLookup, StringComparison.OrdinalIgnoreCase))
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{
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return t1;
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}
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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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/// 更新应用程序中的资源字典
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/// </summary>
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/// <param name="resourceLookup">要查找的资源名称的一部分</param>
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/// <param name="newResourceUri">用于替换的新资源的有效Uri</param>
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/// <returns>如果字典Uri已更新则返回true，否则返回false</returns>
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public bool UpdateDictionary(string resourceLookup, Uri? newResourceUri)
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{
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// 获取应用程序的合并资源字典集合
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var applicationDictionaries = ThemeManager
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.Current
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.Resources
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.MergedDictionaries;
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// 如果没有资源字典或新的Uri为空，则返回false
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if (applicationDictionaries.Count == 0 || newResourceUri is null)
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{
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return false;
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}
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// 遍历顶层资源字典
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for (var i = 0; i < applicationDictionaries.Count; i++)
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{
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string sourceUri;
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// 检查当前资源字典是否有Source
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if (applicationDictionaries[i]?.Source != null)
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{
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sourceUri = applicationDictionaries[i].Source.ToString();
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// 检查资源Uri是否匹配搜索条件
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if (sourceUri.Contains(SearchNamespace, StringComparison.OrdinalIgnoreCase) &&
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sourceUri.Contains(resourceLookup, StringComparison.OrdinalIgnoreCase))
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{
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// 使用新的Uri更新资源字典
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applicationDictionaries[i] = new() { Source = newResourceUri };
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return true;
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}
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}
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// 遍历合并的子资源字典
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for (var j = 0; j < applicationDictionaries[i].MergedDictionaries.Count; j++)
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{
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if (applicationDictionaries[i].MergedDictionaries[j]?.Source == null)
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{
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continue;
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}
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sourceUri = applicationDictionaries[i].MergedDictionaries[j].Source.ToString();
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// 检查子资源字典Uri是否匹配搜索条件
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if (sourceUri.Contains(SearchNamespace, StringComparison.OrdinalIgnoreCase) &&
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sourceUri.Contains(resourceLookup, StringComparison.OrdinalIgnoreCase))
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{
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// 使用新的Uri更新子资源字典
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applicationDictionaries[i].MergedDictionaries[j] = new ResourceDictionary { Source = newResourceUri };
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return true;
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}
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}
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}
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// 未找到匹配的资源字典，返回false
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return false;
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}
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}
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