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https://github.com/ckaczor/FeedCenter.git
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Move application files to sub-folder
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434
Application/Options/FeedsOptionsPanel.xaml.cs
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434
Application/Options/FeedsOptionsPanel.xaml.cs
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using Microsoft.Win32;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Linq;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Data;
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using System.Windows.Input;
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using System.Xml;
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namespace FeedCenter.Options
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{
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public partial class FeedsOptionsPanel
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{
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#region Constructor
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public FeedsOptionsPanel()
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{
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InitializeComponent();
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}
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#endregion
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#region OptionsPanelBase overrides
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public override void LoadPanel(FeedCenterEntities database)
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{
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base.LoadPanel(database);
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var collectionViewSource = new CollectionViewSource { Source = Database.AllCategories };
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collectionViewSource.SortDescriptions.Add(new SortDescription("SortKey", ListSortDirection.Ascending));
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collectionViewSource.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
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categoryListBox.ItemsSource = collectionViewSource.View;
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categoryListBox.SelectedIndex = 0;
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}
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public override bool ValidatePanel()
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{
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return true;
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}
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public override void SavePanel()
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{ }
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public override string CategoryName
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{
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get { return Properties.Resources.optionCategoryFeeds; }
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}
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#endregion
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#region Feed list management
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private void SetFeedButtonStates()
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{
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addFeedButton.IsEnabled = true;
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editFeedButton.IsEnabled = (feedListBox.SelectedItem != null);
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deleteFeedButton.IsEnabled = (feedListBox.SelectedItem != null);
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}
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private void AddFeed()
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{
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var feed = Feed.Create();
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var feedWindow = new FeedWindow();
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var result = feedWindow.Display(Database, feed, Window.GetWindow(this));
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if (result.HasValue && result.Value)
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{
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Database.Feeds.Add(feed);
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feedListBox.SelectedItem = feed;
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SetFeedButtonStates();
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}
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}
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private void EditSelectedFeed()
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{
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if (feedListBox.SelectedItem == null)
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return;
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var feed = (Feed) feedListBox.SelectedItem;
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var feedWindow = new FeedWindow();
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feedWindow.Display(Database, feed, Window.GetWindow(this));
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}
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private void DeleteSelectedFeed()
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{
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var feed = (Feed) feedListBox.SelectedItem;
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Database.Feeds.Remove(feed);
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SetFeedButtonStates();
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}
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#endregion
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#region Feed event handlers
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private void HandleAddFeedButtonClick(object sender, RoutedEventArgs e)
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{
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AddFeed();
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}
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private void HandleEditFeedButtonClick(object sender, RoutedEventArgs e)
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{
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EditSelectedFeed();
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}
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private void HandleDeleteFeedButtonClick(object sender, RoutedEventArgs e)
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{
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DeleteSelectedFeed();
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}
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private void HandleImportButtonClick(object sender, RoutedEventArgs e)
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{
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ImportFeeds();
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}
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private void HandleExportButtonClick(object sender, RoutedEventArgs e)
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{
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ExportFeeds();
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}
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#endregion
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#region Feed import and export
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private void ExportFeeds()
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{
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// Setup the save file dialog
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var saveFileDialog = new SaveFileDialog
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{
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Filter = Properties.Resources.ImportExportFilter,
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FilterIndex = 0,
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OverwritePrompt = true
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};
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var result = saveFileDialog.ShowDialog();
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if (!result.GetValueOrDefault(false))
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return;
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// Setup the writer settings
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var writerSettings = new XmlWriterSettings
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{
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Indent = true,
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CheckCharacters = true,
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ConformanceLevel = ConformanceLevel.Document
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};
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// Create an XML writer for the file chosen
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var xmlWriter = XmlWriter.Create(saveFileDialog.FileName, writerSettings);
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// Start the opml element
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xmlWriter.WriteStartElement("opml");
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// Start the body element
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xmlWriter.WriteStartElement("body");
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// Loop over each feed
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foreach (var feed in Database.Feeds.OrderBy(feed => feed.Name))
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{
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// Start the outline element
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xmlWriter.WriteStartElement("outline");
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// Write the title
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xmlWriter.WriteAttributeString("title", feed.Title);
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// Write the HTML link
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xmlWriter.WriteAttributeString("htmlUrl", feed.Link);
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// Write the XML link
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xmlWriter.WriteAttributeString("xmlUrl", feed.Source);
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// End the outline element
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xmlWriter.WriteEndElement();
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}
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// End the body element
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xmlWriter.WriteEndElement();
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// End the opml element
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xmlWriter.WriteEndElement();
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// Flush and close the writer
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xmlWriter.Flush();
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xmlWriter.Close();
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}
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private void ImportFeeds()
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{
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// Setup the open file dialog
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var openFileDialog = new OpenFileDialog
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{
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Filter = Properties.Resources.ImportExportFilter,
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FilterIndex = 0
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};
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var result = openFileDialog.ShowDialog();
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if (!result.GetValueOrDefault(false))
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return;
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// Setup the reader settings
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var xmlReaderSettings = new XmlReaderSettings { IgnoreWhitespace = true };
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// Create an XML reader for the file chosen
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var xmlReader = XmlReader.Create(openFileDialog.FileName, xmlReaderSettings);
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try
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{
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// Read the first node
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xmlReader.Read();
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// Read the OPML node
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xmlReader.ReadStartElement("opml");
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// Read the body node
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xmlReader.ReadStartElement("body");
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// Read all outline nodes
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while (xmlReader.NodeType != XmlNodeType.EndElement)
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{
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// Create a new feed
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var feed = Feed.Create();
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feed.Category = Database.Categories.ToList().First(c => c.IsDefault);
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// Loop over all attributes
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while (xmlReader.MoveToNextAttribute())
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{
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// Handle the attibute
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switch (xmlReader.Name.ToLower())
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{
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case "title":
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feed.Title = xmlReader.Value;
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break;
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case "htmlurl":
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feed.Link = xmlReader.Value;
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break;
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case "xmlurl":
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feed.Source = xmlReader.Value;
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break;
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case "text":
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feed.Name = xmlReader.Value;
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break;
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}
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}
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// Fill in defaults for optional fields
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if (string.IsNullOrEmpty(feed.Name))
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feed.Name = feed.Title;
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// Add the feed to the main list
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Database.Feeds.Add(feed);
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// Move back to the element node
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xmlReader.MoveToElement();
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// Skip to the next node
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xmlReader.Skip();
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}
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// End the body node
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xmlReader.ReadEndElement();
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// End the OPML node
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xmlReader.ReadEndElement();
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}
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finally
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{
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xmlReader.Close();
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}
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}
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#endregion
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#region Category list management
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private void SetCategoryButtonStates()
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{
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addCategoryButton.IsEnabled = true;
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editCategoryButton.IsEnabled = (categoryListBox.SelectedItem != null);
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deleteCategoryButton.IsEnabled = (categoryListBox.SelectedItem != null);
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}
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private void AddCategory()
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{
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var category = Category.Create();
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var categoryWindow = new CategoryWindow();
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var result = categoryWindow.Display(category, Window.GetWindow(this));
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if (result.HasValue && result.Value)
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{
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Database.Categories.Add(category);
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categoryListBox.SelectedItem = category;
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SetCategoryButtonStates();
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}
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}
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private void EditSelectedCategory()
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{
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if (categoryListBox.SelectedItem == null)
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return;
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var category = (Category) categoryListBox.SelectedItem;
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var categoryWindow = new CategoryWindow();
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categoryWindow.Display(category, Window.GetWindow(this));
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}
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private void DeleteSelectedCategory()
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{
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var category = (Category) categoryListBox.SelectedItem;
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Database.Categories.Remove(category);
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SetCategoryButtonStates();
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}
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#endregion
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#region Category event handlers
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private void HandleAddCategoryButtonClick(object sender, RoutedEventArgs e)
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{
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AddCategory();
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}
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private void HandleEditCategoryButtonClick(object sender, RoutedEventArgs e)
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{
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EditSelectedCategory();
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}
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private void HandleDeleteCategoryButtonClick(object sender, RoutedEventArgs e)
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{
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DeleteSelectedCategory();
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}
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#endregion
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private CollectionViewSource _collectionViewSource;
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private void HandleCategoryListBoxSelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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if (_collectionViewSource == null)
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{
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_collectionViewSource = new CollectionViewSource { Source = Database.AllFeeds };
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_collectionViewSource.SortDescriptions.Add(new SortDescription("Name", ListSortDirection.Ascending));
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_collectionViewSource.Filter += HandleCollectionViewSourceFilter;
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feedListBox.ItemsSource = _collectionViewSource.View;
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}
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_collectionViewSource.View.Refresh();
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if (feedListBox.Items.Count > 0)
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feedListBox.SelectedIndex = 0;
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SetFeedButtonStates();
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}
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private void HandleCollectionViewSourceFilter(object sender, FilterEventArgs e)
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{
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var selectedCategory = (Category) categoryListBox.SelectedItem;
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var feed = (Feed) e.Item;
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e.Accepted = (feed.Category == selectedCategory);
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}
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private void HandleTextBlockDrop(object sender, DragEventArgs e)
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{
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var feedList = (List<Feed>) e.Data.GetData(typeof(List<Feed>));
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var category = (Category) ((DataGridRow) sender).Item;
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foreach (var feed in feedList)
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feed.Category = category;
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_collectionViewSource.View.Refresh();
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//textBlock.TextDecorations = null;
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}
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private void HandleListBoxItemPreviewMouseMove(object sender, MouseEventArgs e)
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{
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if (e.LeftButton == MouseButtonState.Pressed)
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{
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var selectedItems = feedListBox.SelectedItems.Cast<Feed>().ToList();
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DragDrop.DoDragDrop(feedListBox, selectedItems, DragDropEffects.Move);
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}
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}
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private void HandleTextBlockDragEnter(object sender, DragEventArgs e)
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{
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var dataGridRow = (DataGridRow) sender;
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dataGridRow.FontWeight = FontWeights.Bold;
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}
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private void HandleTextBlockDragLeave(object sender, DragEventArgs e)
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{
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var dataGridRow = (DataGridRow) sender;
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dataGridRow.FontWeight = FontWeights.Normal;
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}
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private void HandleListBoxItemMouseDoubleClick(object sender, MouseButtonEventArgs e)
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{
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EditSelectedFeed();
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}
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private void HandleMultipleEditClick(object sender, RoutedEventArgs e)
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{
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var bulkFeedWindow = new BulkFeedWindow();
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bulkFeedWindow.Display(Window.GetWindow(this), Database);
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}
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}
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}
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