102 lines
3.6 KiB
C#
102 lines
3.6 KiB
C#
using MediaBrowser.Common.Win32;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.IO;
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using System;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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namespace MediaBrowser.Controller.Providers
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{
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/// <summary>
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/// Provides images for generic types by looking for standard images in the IBN
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/// </summary>
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public class ImagesByNameProvider : ImageFromMediaLocationProvider
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{
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/// <summary>
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/// Supportses the specified item.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
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public override bool Supports(BaseItem item)
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{
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//only run for these generic types since we are expensive in file i/o
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return item is IndexFolder || item is BasePluginFolder;
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}
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/// <summary>
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/// Gets the priority.
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/// </summary>
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/// <value>The priority.</value>
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public override MetadataProviderPriority Priority
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{
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get
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{
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return MetadataProviderPriority.Last;
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}
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}
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/// <summary>
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/// Gets a value indicating whether [refresh on file system stamp change].
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/// </summary>
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/// <value><c>true</c> if [refresh on file system stamp change]; otherwise, <c>false</c>.</value>
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protected override bool RefreshOnFileSystemStampChange
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{
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get
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{
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return false;
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}
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}
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/// <summary>
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/// Override this to return the date that should be compared to the last refresh date
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/// to determine if this provider should be re-fetched.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns>DateTime.</returns>
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protected override DateTime CompareDate(BaseItem item)
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{
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// If the IBN location exists return the last modified date of any file in it
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var location = GetLocation(item);
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return Directory.Exists(location) ? FileSystem.GetFiles(location).Select(f => f.CreationTimeUtc > f.LastWriteTimeUtc ? f.CreationTimeUtc : f.LastWriteTimeUtc).Max() : DateTime.MinValue;
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}
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/// <summary>
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/// The us culture
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/// </summary>
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private static readonly CultureInfo UsCulture = new CultureInfo("en-US");
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/// <summary>
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/// Gets the location.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <returns>System.String.</returns>
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protected string GetLocation(BaseItem item)
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{
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var invalid = Path.GetInvalidFileNameChars();
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var name = item.Name ?? string.Empty;
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name = invalid.Aggregate(name, (current, c) => current.Replace(c.ToString(UsCulture), string.Empty));
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return Path.Combine(Kernel.Instance.ApplicationPaths.GeneralPath, name);
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}
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/// <summary>
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/// Gets the image.
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/// </summary>
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/// <param name="item">The item.</param>
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/// <param name="filenameWithoutExtension">The filename without extension.</param>
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/// <returns>System.Nullable{WIN32_FIND_DATA}.</returns>
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protected override WIN32_FIND_DATA? GetImage(BaseItem item, string filenameWithoutExtension)
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{
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var location = GetLocation(item);
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var result = FileSystem.GetFileData(Path.Combine(location, filenameWithoutExtension + ".png"));
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if (!result.HasValue)
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result = FileSystem.GetFileData(Path.Combine(location, filenameWithoutExtension + ".jpg"));
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return result;
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}
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}
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}
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