Added search suggestions to Omnibar

Author: yaira2

src/Files.App/UserControls/NavigationToolbar.xaml

@@ -30,6 +30,10 @@
 			<converters:NullToVisibilityCollapsedConverter x:Key="NullToVisibilityCollapsedConverter" />
 			<converters1:BoolNegationConverter x:Key="BoolNegationConverter" />
 			<converters:VisibilityInvertConverter x:Key="VisibilityInvertConverter" />
+			<converters1:BoolToObjectConverter
+				x:Key="SearchSuggestionGlyphConverter"
+				FalseValue="&#xE7C3;"
+				TrueValue="&#xE81C;" />
 
 			<ResourceDictionary.MergedDictionaries>
 				<ResourceDictionary Source="ms-appx:///UserControls/KeyboardShortcut/KeyboardShortcut.xaml" />

src/Files.App/UserControls/NavigationToolbar.xaml.cs

@@ -338,6 +338,7 @@ await DispatcherQueue.EnqueueOrInvokeAsync(() =>
 			}
 			else if (Omnibar.CurrentSelectedMode == OmnibarSearchMode)
 			{
+				await ViewModel.PopulateOmnibarSuggestionsForSearchMode();
 			}
 		}
 
@@ -456,7 +457,7 @@ await DispatcherQueue.EnqueueOrInvokeAsync(() =>
 			}
 			else if (e.NewMode == OmnibarSearchMode)
 			{
-
+				await ViewModel.PopulateOmnibarSuggestionsForSearchMode();
 			}
 		}
 
@@ -486,7 +487,7 @@ await DispatcherQueue.EnqueueOrInvokeAsync(() =>
 				}
 				else if (Omnibar.CurrentSelectedMode == OmnibarSearchMode)
 				{
-
+					await ViewModel.PopulateOmnibarSuggestionsForSearchMode();
 				}
 			}
 		}

src/Files.App/ViewModels/UserControls/NavigationToolbarViewModel.cs

@@ -1243,6 +1243,46 @@ public void PopulateOmnibarSuggestionsForCommandPaletteMode()
 			}
 		}
 
+		public async Task PopulateOmnibarSuggestionsForSearchMode()
+		{
+			if (ContentPageContext.ShellPage is null)
+				return;
+
+			if (!string.IsNullOrWhiteSpace(OmnibarSearchModeText))
+			{
+				var search = new FolderSearch()
+				{
+					Query = OmnibarSearchModeText,
+					Folder = ContentPageContext.ShellPage.ShellViewModel.WorkingDirectory,
+					MaxItemCount = 10,
+				};
+
+				var results = await search.SearchAsync();
+				var newSuggestions = results
+					.Select(item => new SuggestionModel(item))
+					.ToList();
+
+				// Remove items no longer in the result set
+				var toRemove = OmnibarSearchModeSuggestionItems
+					.Where(existing => !newSuggestions.Any(newItem => newItem.ItemPath == existing.ItemPath))
+					.ToList();
+
+				foreach (var item in toRemove)
+					OmnibarSearchModeSuggestionItems.Remove(item);
+
+				// Add new items
+				var toAdd = newSuggestions
+					.Where(newItem => !OmnibarSearchModeSuggestionItems.Any(existing => existing.ItemPath == newItem.ItemPath));
+
+				foreach (var item in toAdd)
+					OmnibarSearchModeSuggestionItems.Add(item);
+			}
+			else
+			{
+				// NOTE: Add to the recent queries
+			}
+		}
+
 		[Obsolete("Remove once Omnibar goes out of experimental.")]
 		public async Task SetAddressBarSuggestionsAsync(AutoSuggestBox sender, IShellPage shellpage)
 		{