Add search capability over message headers

MainWindow.xaml

@@ -2,10 +2,22 @@
 <Window x:Class="XstReader.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:stb="clr-namespace:SearchTextBox"
         Title="Xst Reader" Height="800" Width="1500"
         Closing="Window_Closing">
     <Window.Resources>
         <BooleanToVisibilityConverter x:Key="VisibleIfTrue"/>
+        <Style x:Key="ListViewSelect" TargetType="{x:Type ListViewItem}">
+            <Setter x:Uid="Setter_10" Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
+            <Setter x:Uid="Setter_11" Property="FontWeight" Value="Normal" />
+            <Style.Triggers>
+                <Trigger x:Uid="Trigger_1" Property="IsSelected"
+                              Value="True">
+                    <Setter x:Uid="Setter_12" Property="FontWeight"
+                                    Value="Bold" />
+                </Trigger>
+            </Style.Triggers>
+        </Style>
     </Window.Resources>
     <Grid>
         <Grid.ColumnDefinitions>
@@ -48,7 +60,8 @@
                 <RowDefinition Height="30"/>
             </Grid.RowDefinitions>
             <ListView Grid.Row="0"  Name="listMessages" Margin="0,0,0,0" DataContext="{Binding Path=SelectedFolder}" ItemsSource="{Binding Path=Messages}"
-                      SelectionChanged="listMessages_SelectionChanged" FontSize="12">
+                      SelectionChanged="listMessages_SelectionChanged" FontSize="12"
+                      ItemContainerStyle="{StaticResource ResourceKey=ListViewSelect}">
                 <ListView.View>
                     <GridView>
                         <GridViewColumn Width="15" >
@@ -95,6 +108,8 @@
                     </GridView>
                 </ListView.View>
             </ListView>
+            <stb:SearchTextBox Grid.Row="1" Width="250" x:Name="searchTextBox" SectionsStyle="CheckBoxStyle"
+                                 OnSearch="searchTextBox_OnSearch"/>
         </Grid>
         <GridSplitter Grid.Column="3" Width="3" HorizontalAlignment="Stretch" />
         <Grid Grid.Column="4">

MainWindow.xaml.cs

@@ -1,5 +1,6 @@
 // Copyright (c) 2016, Dijji, and released under Ms-PL.  This can be found in the root of this distribution. 
 
+using SearchTextBox;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -22,11 +23,16 @@ public partial class MainWindow : Window
         private XstFile xstFile = null;
         private GridViewColumnHeader listViewSortCol = null;
         private SortAdorner listViewSortAdorner = null;
+        private int searchIndex = -1;
 
         public MainWindow()
         {
             InitializeComponent();
             this.DataContext = view;
+
+            // Supply the Search control with the list of sections
+            searchTextBox.SectionsList = new List<string> { "Subject", "From/To", "Date" };
+
             if (Properties.Settings.Default.Top != 0.0)
             {
                 this.Top = Properties.Settings.Default.Top;
@@ -172,6 +178,8 @@ private void treeFolders_SelectedItemChanged(object sender, RoutedPropertyChange
 
         private void listMessages_SelectionChanged(object sender, SelectionChangedEventArgs e)
         {
+            searchIndex = listMessages.SelectedIndex;
+            searchTextBox.ShowSearch = true;
             Message m = (Message)listMessages.SelectedItem;
 
             if (m != null)
@@ -208,6 +216,9 @@ private void listMessagesColumnHeader_Click(object sender, RoutedEventArgs e)
             listViewSortAdorner = new SortAdorner(listViewSortCol, newDir);
             AdornerLayer.GetAdornerLayer(listViewSortCol).Add(listViewSortAdorner);
             listMessages.Items.SortDescriptions.Add(new SortDescription(sortBy, newDir));
+
+            searchIndex = listMessages.SelectedIndex;
+            listMessages.ScrollIntoView(listMessages.SelectedItem);
         }
 
         private void listRecipients_SelectionChanged(object sender, SelectionChangedEventArgs e)
@@ -275,6 +286,78 @@ private void rbProperties_Click(object sender, RoutedEventArgs e)
             view.ShowContent = false;
         }
 
+        private void searchTextBox_OnSearch(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                var args = e as SearchEventArgs;
+                bool subject = args.Sections.Contains("Subject");
+                bool fromTo = args.Sections.Contains("From/To");
+                bool date = args.Sections.Contains("Date");
+                bool found = false;
+                switch (args.SearchEventType)
+                {
+                    case SearchEventType.Search:
+                        for (int i = 0; i < listMessages.Items.Count; i++)
+                        {
+                            found = PropertyHitTest(i, args.Keyword, subject, fromTo, date);
+                            if (found)
+                                break;
+                        }
+
+                        if (!found)
+                            searchIndex = -1;
+                        break;
+                    case SearchEventType.Next:
+                        for (int i = searchIndex + 1; i < listMessages.Items.Count; i++)
+                        {
+                            found = PropertyHitTest(i, args.Keyword, subject, fromTo, date);
+                            if (found)
+                            {
+                                searchTextBox.ShowSearch = true;
+                                break;
+                            }
+                        }
+                        break;
+                    case SearchEventType.Previous:
+                        for (int i = searchIndex - 1; i >= 0; i--)
+                        {
+                            found = PropertyHitTest(i, args.Keyword, subject, fromTo, date);
+                            if (found)
+                            {
+                                searchTextBox.ShowSearch = true;
+                                break;
+                            }
+                        }
+                        break;
+                }
+
+                if (!found)
+                    searchTextBox.IndicateSearchFailed(args.SearchEventType);
+            }
+            catch (Exception ex)
+            {
+                // Unclear what we can do here, as we were invoked by an event from the search text box control
+            }
+        }
+
+        private bool PropertyHitTest(int index, string text, bool subject, bool fromTo, bool date)
+        {
+            Message m = listMessages.Items[index] as Message;
+            if ((subject && m.Subject != null && m.Subject.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0) ||
+                (fromTo && m.FromTo != null && m.FromTo.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0) ||
+                (date && m.DisplayDate != null && m.DisplayDate.IndexOf(text, StringComparison.CurrentCultureIgnoreCase) >= 0))
+            {
+                searchIndex = index;
+                listMessages.UnselectAll();
+                m.IsSelected = true;
+                listMessages.ScrollIntoView(m);
+                return true;
+            }
+            else
+                return false;
+        }
+
         private void ShowStatus(string status)
         {
             if (status != null)

SearchTextBox/ListBoxEx.cs

@@ -0,0 +1,65 @@
+//Copied from www.codeproject.com/Articles/101975/Building-a-Search-Text-Box-Control-with-WPF
+//and modified to add next and previous buttons, and improve icons and general behaviour
+//Licensed under The Code Project Open License (CPOL)
+using System;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace SearchTextBox
+{
+
+    public class ListBoxEx : ListBox
+    {
+        public enum ItemStyles{
+            NormalStyle,
+            CheckBoxStyle,
+            RadioBoxStyle
+        }
+        private ItemStyles m_extendedStyle;
+
+        public ItemStyles ExtendedStyle
+        {
+            get { return m_extendedStyle; }
+            set {
+                m_extendedStyle = value;
+
+                // load resources
+                ResourceDictionary resDict = new ResourceDictionary();
+                resDict.Source = new Uri("/Themes/ListBoxEx.xaml", UriKind.Relative);
+                if (resDict.Source == null)
+                    throw new SystemException();
+
+                switch (value)
+                {
+                case ItemStyles.NormalStyle:
+                    this.Style = (Style)resDict["NormalListBox"];
+            	    break;
+                case ItemStyles.CheckBoxStyle:
+                    this.Style = (Style)resDict["CheckListBox"];
+                    break; 
+                case ItemStyles.RadioBoxStyle:
+                    this.Style = (Style)resDict["RadioListBox"];
+                    break;
+                }
+            }
+        }
+
+        static ListBoxEx()
+        {
+            DefaultStyleKeyProperty.OverrideMetadata(typeof(ListBoxEx), new FrameworkPropertyMetadata(typeof(ListBoxEx)));
+        }
+
+        public ListBoxEx(ItemStyles style)
+            : base()
+        {
+            ExtendedStyle = style;
+        }
+
+        public ListBoxEx(): base(){
+            ExtendedStyle = ItemStyles.NormalStyle;
+        }
+
+
+    }
+}
+