115 lines
3.4 KiB
C#
115 lines
3.4 KiB
C#
//-----------------------------------------------------------------------
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// <copyright file="ExamFile.cs" company="BTU/IIT">
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// Company copyright tag.
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// </copyright>
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// <author>stubbfel</author>
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// <sience>03.09.2013</sience>
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//----------------------------------------------------------------------
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namespace CampusAppWP8.File.Exams
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{
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using System.IO;
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using CampusAppWP8.Model;
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using Windows.Storage;
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/// <summary>Exam file.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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public class ExamFile : BinaryModel
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{
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#region Member
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/// <summary>The storage file.</summary>
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private StorageFile storageFile;
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#endregion
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#region Constructor
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/// <summary>Initializes a new instance of the ExamFile class.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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/// <param name="fileName">Filename of the file.</param>
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/// <param name="url"> URL of the document.</param>
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public ExamFile(string fileName, string url)
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: base(ModelType.FileAndFeed, fileName, url)
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{
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this.IsFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDate);
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this.IsModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
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this.IsFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDate);
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}
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#endregion
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#region Method
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#region public
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/// <summary>Executes the file operation.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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public async void LaunchFile()
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{
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if (this.storageFile == null)
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{
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this.storageFile = await this.file.AsStorageFile();
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}
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if (this.storageFile != null)
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{
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var options = new Windows.System.LauncherOptions();
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Windows.System.Launcher.LaunchFileAsync(this.storageFile);
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}
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}
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#endregion
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/// <summary>Saves the and launch file.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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public void SaveAndLaunchFile()
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{
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if (this.file.Exist())
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{
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this.LaunchFile();
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}
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else
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{
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this.OnSaved += new ExamFile.OnIO(this.LaunchFile);
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this.SaveData();
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}
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}
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#region private
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/// <summary>Check is model up to date.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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/// <param name="model">The model.</param>
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/// <returns>true if it succeeds, false if it fails.</returns>
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private bool CheckIsModelUpToDate(byte[] model)
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{
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if (model == null)
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{
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return false;
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}
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return true;
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}
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/// <summary>Check is file up to date.</summary>
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/// <remarks>Stubbfel, 03.09.2013.</remarks>
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/// <param name="model"> The model.</param>
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/// <param name="fileInfo">Information describing the file.</param>
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/// <returns>true if it succeeds, false if it fails.</returns>
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private bool CheckIsFileUpToDate(byte[] model, FileInfo fileInfo)
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{
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if (fileInfo == null || !fileInfo.Exists || fileInfo.Length < 1 || model != null)
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{
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return false;
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}
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return true;
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}
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#endregion
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#endregion
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}
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}
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