Add select all controls to media lists (#2738)

* Add select all controls to media lists

* Refine select-all helper and add coverage

* Adjust select-all button alignment

* Tighten select-all helper semantics

* Allow tests to access internal members

* Rename select-all helper and avoid shift tracking

* Simplify select-all reset helper

* Keep pager centered and move select-all right

* Add missing div

* create test project for main app; move and rename new tests

* remove core => main app reference

* cleanup unused imports

* Fix button behavior when the screen is small

* update changelog

---------

Co-authored-by: Jason Dove <1695733+jasongdove@users.noreply.github.com>

CHANGELOG.md

@@ -40,6 +40,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - `ETV_SLOW_API_MS` - milliseconds threshold for logging slow API calls (at DEBUG level)
     - This is currently limited to *Jellyfin*
   - `ETV_JF_PAGE_SIZE` - page size for library scan API calls to Jellyfin; default value is 10
+- Add `Select All` button to media pages by @Erotemic
 
 ### Fixed
 - Fix startup on systems unsupported by NvEncSharp

ErsatzTV.Tests/ErsatzTV.Tests.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net10.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\ErsatzTV\ErsatzTV.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="NUnit" Version="4.4.0" />
+      <PackageReference Include="NUnit.Analyzers" Version="4.11.2">
+        <PrivateAssets>all</PrivateAssets>
+        <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      </PackageReference>
+      <PackageReference Include="NUnit3TestAdapter" Version="6.0.1" />
+      <PackageReference Include="Shouldly" Version="4.3.0" />
+    </ItemGroup>
+
+</Project>

ErsatzTV.Tests/Pages/MultiSelectBaseTests.cs

@@ -0,0 +1,35 @@
+using ErsatzTV.Application.MediaCards;
+using ErsatzTV.Pages;
+using NUnit.Framework;
+using Shouldly;
+
+namespace ErsatzTV.Tests.Pages;
+
+[TestFixture]
+public class MultiSelectBaseTests
+{
+    [Test]
+    public void Should_replace_existing_selection_and_return_last_card()
+    {
+        var existingCard = new MediaCardViewModel(1, "Existing", "Sub", "Existing", "", Core.Domain.MediaItemState.Normal, false);
+        var selected = new HashSet<MediaCardViewModel> { existingCard };
+
+        var first = new MediaCardViewModel(2, "First", "Sub", "First", "", Core.Domain.MediaItemState.Normal, false);
+        var second = new MediaCardViewModel(3, "Second", "Sub", "Second", "", Core.Domain.MediaItemState.Normal, false);
+
+        MultiSelectBase<Search>.ResetSelectionWithCards(selected, [first, second]);
+
+        selected.ShouldBe([first, second], ignoreOrder: true);
+    }
+
+    [Test]
+    public void Should_clear_selection_when_no_cards()
+    {
+        var existingCard = new MediaCardViewModel(1, "Existing", "Sub", "Existing", "", Core.Domain.MediaItemState.Normal, false);
+        var selected = new HashSet<MediaCardViewModel> { existingCard };
+
+        MultiSelectBase<Search>.ResetSelectionWithCards(selected, []);
+
+        selected.ShouldBeEmpty();
+    }
+}

ErsatzTV.sln

@@ -28,6 +28,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ErsatzTV.Infrastructure.Sql
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ErsatzTV.Core.Nullable", "ErsatzTV.Core.Nullable\ErsatzTV.Core.Nullable.csproj", "{557D88A6-C982-4FFD-8FD2-6446CB07D093}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ErsatzTV.Tests", "ErsatzTV.Tests\ErsatzTV.Tests.csproj", "{56F56E76-CEF4-4639-B7BB-03FD201BB019}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -113,11 +115,18 @@ Global
 		{557D88A6-C982-4FFD-8FD2-6446CB07D093}.Release|Any CPU.Build.0 = Release|Any CPU
 		{557D88A6-C982-4FFD-8FD2-6446CB07D093}.Debug No Sync|Any CPU.ActiveCfg = Debug|Any CPU
 		{557D88A6-C982-4FFD-8FD2-6446CB07D093}.Debug No Sync|Any CPU.Build.0 = Debug|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Release|Any CPU.Build.0 = Release|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Debug No Sync|Any CPU.ActiveCfg = Debug|Any CPU
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019}.Debug No Sync|Any CPU.Build.0 = Debug|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{CE7F1ACD-F286-4761-A7BC-A541A1E25C86} = {325E6DA0-52B3-4431-98A2-72C36F403704}
 		{1C892530-CF92-4F43-8C64-BCEEF958D726} = {325E6DA0-52B3-4431-98A2-72C36F403704}
 		{591FB3F4-4DD8-441B-B7C8-F2A42BF69992} = {325E6DA0-52B3-4431-98A2-72C36F403704}
 		{2EF80455-953D-4696-831D-E8CBCA82B0EF} = {325E6DA0-52B3-4431-98A2-72C36F403704}
+		{56F56E76-CEF4-4639-B7BB-03FD201BB019} = {325E6DA0-52B3-4431-98A2-72C36F403704}
 	EndGlobalSection
 EndGlobal

ErsatzTV/Pages/ArtistList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/EpisodeList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/ImageList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/MovieList.razor

@@ -20,6 +20,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/MultiSelectBase.cs

@@ -38,6 +38,12 @@ public class MultiSelectBase<T> : FragmentNavigationBase
     protected string SelectionLabel() =>
         $"{SelectedItems.Count} {(SelectedItems.Count == 1 ? "Item" : "Items")} Selected";
 
+    protected void SelectAllPageItems(IEnumerable<MediaCardViewModel> cards)
+    {
+        ResetSelectionWithCards(SelectedItems, cards);
+        StateHasChanged();
+    }
+
     protected void ClearSelection()
     {
         SelectedItems.Clear();
@@ -239,4 +245,12 @@ public class MultiSelectBase<T> : FragmentNavigationBase
                 });
         }
     }
+
+    internal static void ResetSelectionWithCards(
+        ISet<MediaCardViewModel> selectedItems,
+        IEnumerable<MediaCardViewModel> cards)
+    {
+        selectedItems.Clear();
+        selectedItems.UnionWith(cards);
+    }
 }

ErsatzTV/Pages/MusicVideoList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/OtherVideoList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/RemoteStreamList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/SongList.razor

@@ -18,6 +18,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/TelevisionShowList.razor

@@ -20,6 +20,8 @@
                         AddSelectionToCollection="@AddSelectionToCollection"
                         AddSelectionToPlaylist="@AddSelectionToPlaylist"
                         ClearSelection="@ClearSelection"
+                        CanSelectAllOnPage="@(() => _data.Cards.Count > 0)"
+                        SelectAllOnPage="@(() => SelectAllPageItems(_data.Cards))"
                         IsSelectMode="@IsSelectMode"
                         SelectionLabel="@SelectionLabel"/>
     </MudPaper>

ErsatzTV/Pages/Trash.razor

@@ -92,25 +92,37 @@
                     <MudLink Class="ml-4" Href="@(NavigationManager.Uri.Split("#").Head() + "#remote_streams")" Style="margin-bottom: auto; margin-top: auto">@_remoteStreams.Count Remote Streams</MudLink>
                 }
                 <div class="flex-grow-1 d-none d-md-flex"></div>
-                <div>
-                    <MudButton Variant="@Variant.Filled"
-                               Color="@Color.Error"
-                               StartIcon="@Icons.Material.Filled.DeleteForever"
-                               OnClick="@(_ => EmptyTrash())">
-                        Empty Trash
-                    </MudButton>
-                </div>
+                <MudButton Variant="@Variant.Filled"
+                           Color="@Color.Primary"
+                           StartIcon="@Icons.Material.Filled.SelectAll"
+                           Disabled="@(!IsNotEmpty)"
+                           OnClick="@(_ => SelectAllPageItems(AllCardsOnPage()))">
+                    Select All
+                </MudButton>
+                <MudButton Class="ml-3"
+                           Variant="@Variant.Filled"
+                           Color="@Color.Error"
+                           StartIcon="@Icons.Material.Filled.DeleteForever"
+                           OnClick="@(_ => EmptyTrash())">
+                    Empty Trash
+                </MudButton>
             </div>
             <div style="align-items: center; display: flex; width: 100%" class="d-md-none">
                 <div class="flex-grow-1"></div>
-                <div>
-                    <MudButton Variant="@Variant.Filled"
-                               Color="@Color.Error"
-                               StartIcon="@Icons.Material.Filled.DeleteForever"
-                               OnClick="@(_ => EmptyTrash())">
-                        Empty Trash
-                    </MudButton>
-                </div>
+                <MudButton Variant="@Variant.Filled"
+                           Color="@Color.Primary"
+                           StartIcon="@Icons.Material.Filled.SelectAll"
+                           Disabled="@(!IsNotEmpty)"
+                           OnClick="@(_ => SelectAllPageItems(AllCardsOnPage()))">
+                    Select All
+                </MudButton>
+                <MudButton Class="ml-2"
+                           Variant="@Variant.Filled"
+                           Color="@Color.Error"
+                           StartIcon="@Icons.Material.Filled.DeleteForever"
+                           OnClick="@(_ => EmptyTrash())">
+                    Empty Trash
+                </MudButton>
             </div>
         }
         else
@@ -509,7 +521,20 @@
     }
 
     private bool IsNotEmpty =>
-        _movies?.Cards.Count > 0 || _shows?.Cards.Count > 0 || _seasons?.Cards.Count > 0 || _episodes?.Cards.Count > 0 || _musicVideos?.Cards.Count > 0 || _otherVideos?.Cards.Count > 0 || _songs?.Cards.Count > 0 || _artists?.Cards.Count > 0 || _images?.Cards.Count > 0;
+        _movies?.Cards.Count > 0 || _shows?.Cards.Count > 0 || _seasons?.Cards.Count > 0 || _episodes?.Cards.Count > 0 || _musicVideos?.Cards.Count > 0 || _otherVideos?.Cards.Count > 0 || _songs?.Cards.Count > 0 || _artists?.Cards.Count > 0 || _images?.Cards.Count > 0 || _remoteStreams?.Cards.Count > 0;
+
+    private IEnumerable<MediaCardViewModel> AllCardsOnPage() =>
+        Enumerable.Empty<MediaCardViewModel>()
+            .Concat(_movies.Cards)
+            .Concat(_shows.Cards)
+            .Concat(_seasons.Cards)
+            .Concat(_episodes.Cards)
+            .Concat(_artists.Cards)
+            .Concat(_musicVideos.Cards)
+            .Concat(_otherVideos.Cards)
+            .Concat(_songs.Cards)
+            .Concat(_images.Cards)
+            .Concat(_remoteStreams.Cards);
 
     private void SelectClicked(MediaCardViewModel card, MouseEventArgs e)
     {

ErsatzTV/Properties/AssemblyInfo.cs

@@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("ErsatzTV.Tests")]

ErsatzTV/Shared/MediaCardPager.razor

@@ -44,7 +44,7 @@
             <div style="flex: 1">
                 <MudText Class="d-none d-md-flex">@Query</MudText>
             </div>
-            <div>
+            <div style="display: flex; justify-content: center;">
                 <MudPaper Style="align-items: center; display: flex; justify-content: center;">
                     <MudIconButton Icon="@Icons.Material.Outlined.ChevronLeft"
                                    OnClick="@PrevPage"
@@ -59,7 +59,28 @@
                     </MudIconButton>
                 </MudPaper>
             </div>
-            <div style="flex: 1"></div>
+            <div style="flex: 1; display: flex; justify-content: flex-end;">
+                @if (SelectAllOnPage is not null)
+                {
+                    <div class="d-none d-md-flex" style="margin-left:auto">
+                        <MudButton Variant="Variant.Filled"
+                                Color="Color.Primary"
+                                StartIcon="@Icons.Material.Filled.SelectAll"
+                                Disabled="@(CanSelectAllOnPage is null || !CanSelectAllOnPage())"
+                                OnClick="@(_ => SelectAllOnPage?.Invoke())">
+                            Select All
+                        </MudButton>
+                    </div>
+                    <div class="d-md-none" style="margin-left:auto; display:flex; align-items:center;">
+                        <MudMenu Icon="@Icons.Material.Filled.MoreVert">
+                            <MudMenuItem Icon="@Icons.Material.Filled.SelectAll"
+                                        Label="Select All"
+                                        Disabled="@(CanSelectAllOnPage is null || !CanSelectAllOnPage())"
+                                        OnClick="@(_ => SelectAllOnPage?.Invoke())" />
+                        </MudMenu>
+                    </div>
+                }
+            </div>
         </div>
     }
 </div>
@@ -99,6 +120,12 @@
     [Parameter]
     public Action ClearSelection { get; set; }
 
+    [Parameter]
+    public Func<bool> CanSelectAllOnPage { get; set; }
+
+    [Parameter]
+    public Action SelectAllOnPage { get; set; }
+
     private static MarkupString PaddedString(int value, int maximum)
     {
         int length = maximum.ToString(CultureInfo.InvariantCulture).Length;