diff --git a/BootstrapBlazor.sln b/BootstrapBlazor.sln
index 50b599ee7a3..ee043aa8435 100644
--- a/BootstrapBlazor.sln
+++ b/BootstrapBlazor.sln
@@ -156,6 +156,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UniTestSvgIcon", "test\UniT
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BootstrapBlazor.Core", "src\Extensions\Components\BootstrapBlazor.Core\BootstrapBlazor.Core.csproj", "{7ACF4C1A-C06F-4D2E-A86A-BE40C70E403D}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BootstrapBlazor.Sortable", "src\Extensions\Components\BootstrapBlazor.Sortable\BootstrapBlazor.Sortable.csproj", "{50F286FD-D814-46C3-A70C-C2F789C4338C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -364,6 +366,10 @@ Global
 		{7ACF4C1A-C06F-4D2E-A86A-BE40C70E403D}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{7ACF4C1A-C06F-4D2E-A86A-BE40C70E403D}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{7ACF4C1A-C06F-4D2E-A86A-BE40C70E403D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{50F286FD-D814-46C3-A70C-C2F789C4338C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{50F286FD-D814-46C3-A70C-C2F789C4338C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{50F286FD-D814-46C3-A70C-C2F789C4338C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{50F286FD-D814-46C3-A70C-C2F789C4338C}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -427,6 +433,7 @@ Global
 		{481653B0-B096-4F72-BA64-83F52E97E45B} = {CD062AB6-244D-402A-8F33-C37DAC5856CC}
 		{01DA4687-0973-4CA6-97F5-04E0B8DD1B13} = {7C1D79F1-87BC-42C1-BD5A-CDE4044AC1BD}
 		{7ACF4C1A-C06F-4D2E-A86A-BE40C70E403D} = {CD062AB6-244D-402A-8F33-C37DAC5856CC}
+		{50F286FD-D814-46C3-A70C-C2F789C4338C} = {CD062AB6-244D-402A-8F33-C37DAC5856CC}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {0DCB0756-34FA-4FD0-AE1D-D3F08B5B3A6B}
diff --git a/src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj b/src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj
index 6057cf642dd..dc23bb4204d 100644
--- a/src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj
+++ b/src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj
@@ -60,6 +60,7 @@
     <PackageReference Include="BootstrapBlazor.OnScreenKeyboard" Version="8.0.3" />
     <PackageReference Include="BootstrapBlazor.PdfReader" Version="8.0.4" />
     <PackageReference Include="BootstrapBlazor.SignaturePad" Version="8.0.2" />
+    <PackageReference Include="BootstrapBlazor.Sortable" Version="8.0.0" />
     <PackageReference Include="BootstrapBlazor.Splitting" Version="8.0.0" />
     <PackageReference Include="BootstrapBlazor.SvgEditor" Version="8.1.0" />
     <PackageReference Include="BootstrapBlazor.SummerNote" Version="8.0.3" />
diff --git a/src/BootstrapBlazor.Server/Components/Components/VideoDemo.razor b/src/BootstrapBlazor.Server/Components/Components/VideoDemo.razor
index 3112040dd7e..40abcc833c3 100644
--- a/src/BootstrapBlazor.Server/Components/Components/VideoDemo.razor
+++ b/src/BootstrapBlazor.Server/Components/Components/VideoDemo.razor
@@ -1,4 +1,4 @@
 @inherits WebSiteModuleComponentBase
 @attribute [JSModuleAutoLoader("Components/VideoDemo.razor.js", AutoInvokeInit = false, AutoInvokeDispose = false)]
 
-<video id="@Id" controls preload="auto" autoplay width="350" src="https://archive.org/download/BigBuckBunny_124/Content/big_buck_bunny_720p_surround.mp4"></video>
+<video id="@Id" controls preload="auto" autoplay muted src="https://archive.org/download/BigBuckBunny_124/Content/big_buck_bunny_720p_surround.mp4"></video>
diff --git a/src/BootstrapBlazor.Server/Components/Samples/IntersectionObservers.razor b/src/BootstrapBlazor.Server/Components/Samples/IntersectionObservers.razor
index b1afcde8d74..d850b755b71 100644
--- a/src/BootstrapBlazor.Server/Components/Samples/IntersectionObservers.razor
+++ b/src/BootstrapBlazor.Server/Components/Samples/IntersectionObservers.razor
@@ -55,7 +55,22 @@
 <DemoBlock Title="@Localizer["IntersectionObserverVisibleTitle"]"
            Introduction="@Localizer["IntersectionObserverVisibleIntro"]"
            Name="Visible">
-    <section ignore><p>@((MarkupString)Localizer["IntersectionObserverVisibleDesc"].Value)</p></section>
+    <HeadContent>
+        <style>
+            .bb-video video {
+                width: 256px;
+            }
+
+            @@media (min-width: 767.99px) {
+                .bb-video video {
+                    width: 350px;
+                }
+            }
+        </style>
+    </HeadContent>
+    <section ignore>
+        <p>@((MarkupString)Localizer["IntersectionObserverVisibleDesc"].Value)</p>
+    </section>
     <p class="text-center @_textColorString">@_videoStateString</p>
     <IntersectionObserver OnIntersecting="OnVisibleChanged" Threshold="1" AutoUnobserveWhenIntersection="false">
         <div class="bb-video-demo scroll">
diff --git a/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor
new file mode 100644
index 00000000000..653c421b993
--- /dev/null
+++ b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor
@@ -0,0 +1,176 @@
+@page "/sortable-list"
+@inject IStringLocalizer<SortableLists> Localizer
+@inject IStringLocalizer<Foo> FooLocalizer
+
+<h3>@Localizer["SortableListTitle"]</h3>
+
+<h4>@Localizer["SortableListDescription"]</h4>
+
+<PackageTips Name="BootstrapBlazor.SortableList" />
+
+<DemoBlock Title="@Localizer["SortableListNormalTitle"]"
+           Introduction="@Localizer["SortableListNormalIntro"]"
+           Name="Normal">
+    <SortableList Option="_option1" OnUpdate="OnUpdate">
+        <div class="sl-list row g-2">
+            @foreach(var item in Items)
+            {
+                <div @key="item" class="col-12 col-sm-6"><div class="sl-item">@item.Name</div></div>
+            }
+        </div>
+    </SortableList>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListGroupTitle"]"
+           Introduction="@Localizer["SortableListGroupIntro"]"
+           Name="Group">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option2" OnUpdate="OnUpdate1" OnRemove="OnRemove1">
+                <div class="sl-list">
+                    @foreach (var item in Items1)
+                    {
+                        <div @key="item" class="sl-item">@item.Name</div>
+                    }
+                </div>
+            </SortableList>
+        </div>
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option2" OnUpdate="OnUpdate2" OnRemove="OnRemove2">
+                <div class="sl-list">
+                    @foreach (var item in Items2)
+                    {
+                        <div @key="item" class="sl-item">@item.Name</div>
+                    }
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListCloneTitle"]"
+           Introduction="@Localizer["SortableListCloneIntro"]"
+           Name="Clone">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option3">
+                <div class="sl-list">
+                    <div class="sl-item">1</div>
+                    <div class="sl-item">2</div>
+                    <div class="sl-item">3</div>
+                    <div class="sl-item">4</div>
+                </div>
+            </SortableList>
+        </div>
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option3">
+                <div class="sl-list">
+                    <div class="sl-item">5</div>
+                    <div class="sl-item">6</div>
+                    <div class="sl-item">7</div>
+                    <div class="sl-item">8</div>
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListDisableSortTitle"]"
+           Introduction="@Localizer["SortableListDisableSortIntro"]"
+           Name="Sort">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option4">
+                <div class="sl-list">
+                    <div class="sl-item">1</div>
+                    <div class="sl-item">2</div>
+                    <div class="sl-item">3</div>
+                    <div class="sl-item">4</div>
+                </div>
+            </SortableList>
+        </div>
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option5">
+                <div class="sl-list">
+                    <div class="sl-item">5</div>
+                    <div class="sl-item">6</div>
+                    <div class="sl-item">7</div>
+                    <div class="sl-item">8</div>
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListHandlerTitle"]"
+           Introduction="@Localizer["SortableListHandlerIntro"]"
+           Name="Handler">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option6">
+                <div class="sl-list">
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>1</span></div>
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>2</span></div>
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>3</span></div>
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>4</span></div>
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListFilterTitle"]"
+           Introduction="@Localizer["SortableListFilterIntro"]"
+           Name="Filter">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option7">
+                <div class="sl-list">
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>1</span></div>
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>2</span></div>
+                    <div class="sl-item filter"><i class="fa-solid fa-bars"></i><span>3</span></div>
+                    <div class="sl-item"><i class="fa-solid fa-bars"></i><span>4</span></div>
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListNestTitle"]"
+           Introduction="@Localizer["SortableListNestIntro"]"
+           Name="Nest">
+    <div class="row g-2">
+        <div class="col-12 col-sm-6">
+            <SortableList Option="_option1">
+                <div class="sl-list">
+                    <div class="sl-item">
+                        <SortableList Option="_option1">
+                            <div class="sl-list">
+                                <div class="sl-item"><span>11</span></div>
+                                <div class="sl-item"><span>12</span></div>
+                                <div class="sl-item"><span>13</span></div>
+                            </div>
+                        </SortableList>
+                    </div>
+                    <div class="sl-item"><span>2</span></div>
+                    <div class="sl-item"><span>3</span></div>
+                    <div class="sl-item"><span>4</span></div>
+                </div>
+            </SortableList>
+        </div>
+    </div>
+</DemoBlock>
+
+<DemoBlock Title="@Localizer["SortableListTableTitle"]"
+           Introduction="@Localizer["SortableListTableIntro"]"
+           Name="Table">
+    <SortableList Option="_optionTable">
+        <Table TItem="Foo" Items="@Items.Take(3)" IsStriped="true">
+            <TableColumns>
+                <TableColumn @bind-Field="@context.DateTime" Width="180" />
+                <TableColumn @bind-Field="@context.Name" />
+                <TableColumn @bind-Field="@context.Address" />
+            </TableColumns>
+        </Table>
+    </SortableList>
+</DemoBlock>
diff --git a/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.cs b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.cs
new file mode 100644
index 00000000000..b4d2e9b5921
--- /dev/null
+++ b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.cs
@@ -0,0 +1,132 @@
+namespace BootstrapBlazor.Server.Components.Samples;
+
+/// <summary>
+/// SortableList 示例
+/// </summary>
+public partial class SortableLists
+{
+    [NotNull]
+    private List<Foo>? Items { get; set; }
+
+    [NotNull]
+    private List<Foo>? Items1 { get; set; }
+
+    [NotNull]
+    private List<Foo>? Items2 { get; set; }
+
+    private readonly SortableOption _option1 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost"
+    };
+
+    private readonly SortableOption _option2 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Group = "group"
+    };
+
+    private readonly SortableOption _option3 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Group = "group-clone",
+        Clone = true
+    };
+
+    private readonly SortableOption _option4 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Group = "group-clone",
+        Clone = true,
+        Putback = false
+    };
+
+    private readonly SortableOption _option5 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Group = "group-clone",
+        Sort = false
+    };
+
+    private readonly SortableOption _option6 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Handle = "i"
+    };
+
+    private readonly SortableOption _option7 = new()
+    {
+        RootSelector = ".sl-list",
+        GhostClass = "sl-item-ghost",
+        Filter = ".filter"
+    };
+
+    private readonly SortableOption _optionTable = new()
+    {
+        RootSelector = "tbody"
+    };
+
+    /// <summary>
+    /// OnInitialized
+    /// </summary>
+    protected override void OnInitialized()
+    {
+        base.OnInitialized();
+
+        //获取随机数据
+        //Get random data
+        Items = Foo.GenerateFoo(FooLocalizer, 8);
+        Items1 = Foo.GenerateFoo(FooLocalizer, 4);
+        Items2 = Foo.GenerateFoo(FooLocalizer, 8).Skip(4).ToList();
+    }
+
+    private Task OnUpdate(int oldIndex, int newIndex)
+    {
+        var item = Items[oldIndex];
+        Items.RemoveAt(oldIndex);
+        Items.Insert(newIndex, item);
+        StateHasChanged();
+        return Task.CompletedTask;
+    }
+
+    private Task OnUpdate1(int oldIndex, int newIndex)
+    {
+        var item = Items1[oldIndex];
+        Items1.RemoveAt(oldIndex);
+        Items1.Insert(newIndex, item);
+        StateHasChanged();
+        return Task.CompletedTask;
+    }
+
+    private Task OnUpdate2(int oldIndex, int newIndex)
+    {
+        var item = Items[oldIndex];
+        Items2.RemoveAt(oldIndex);
+        Items2.Insert(newIndex, item);
+        StateHasChanged();
+        return Task.CompletedTask;
+    }
+
+    private Task OnRemove1(int oldIndex, int newIndex)
+    {
+        var item = Items1[oldIndex];
+        Items1.RemoveAt(oldIndex);
+        Items2.Insert(newIndex, item);
+        StateHasChanged();
+        return Task.CompletedTask;
+    }
+
+    private Task OnRemove2(int oldIndex, int newIndex)
+    {
+        var item = Items[oldIndex];
+        Items2.RemoveAt(oldIndex);
+        Items1.Insert(newIndex, item);
+        StateHasChanged();
+        return Task.CompletedTask;
+    }
+}
diff --git a/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.css b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.css
new file mode 100644
index 00000000000..943f133e56a
--- /dev/null
+++ b/src/BootstrapBlazor.Server/Components/Samples/SortableLists.razor.css
@@ -0,0 +1,45 @@
+.sl-list {
+    border: var(--bs-border-width) solid var(--bs-border-color);
+    border-radius: var(--bs-border-radius);
+    padding: .5rem;
+}
+
+.sl-item {
+    border: var(--bs-border-width) solid var(--bs-border-color);
+    border-radius: var(--bs-border-radius);
+    padding: 1rem;
+}
+
+    .sl-item i {
+        cursor: pointer;
+    }
+
+    .sl-item span {
+        margin-left: 2rem;
+    }
+
+    .sl-item:not(:last-child) {
+        margin-bottom: 0.5rem;
+        user-select: none;
+    }
+
+    .sl-item.filter {
+        background-color: var(--bs-danger);
+        color: var(--bs-body-bg);
+    }
+
+        .sl-item.filter i {
+            cursor: not-allowed;
+        }
+
+    .col-12.sortable-chosen .sl-item,
+    .sl-item.sortable-chosen {
+        background-color: var(--bs-primary);
+        color: var(--bs-body-bg);
+    }
+
+        .col-12.sortable-chosen.sl-item-ghost .sl-item,
+        .sl-item.sortable-chosen.sl-item-ghost {
+            background-color: var(--bs-info);
+            color: var(--bs-body-bg);
+        }
diff --git a/src/BootstrapBlazor.Server/Components/Samples/Table/Tables.razor.cs b/src/BootstrapBlazor.Server/Components/Samples/Table/Tables.razor.cs
index 068c8523763..046df990108 100644
--- a/src/BootstrapBlazor.Server/Components/Samples/Table/Tables.razor.cs
+++ b/src/BootstrapBlazor.Server/Components/Samples/Table/Tables.razor.cs
@@ -26,6 +26,7 @@ public partial class Tables
     protected override void OnInitialized()
     {
         base.OnInitialized();
+
         //获取随机数据
         //Get random data
         Items = Foo.GenerateFoo(FooLocalizer);
diff --git a/src/BootstrapBlazor.Server/Extensions/MenusLocalizerExtensions.cs b/src/BootstrapBlazor.Server/Extensions/MenusLocalizerExtensions.cs
index 4d75bae582c..cc48a9bdbdc 100644
--- a/src/BootstrapBlazor.Server/Extensions/MenusLocalizerExtensions.cs
+++ b/src/BootstrapBlazor.Server/Extensions/MenusLocalizerExtensions.cs
@@ -1339,6 +1339,12 @@ void AddLayout(DemoMenuItem item)
                     Url = "row"
                 },
                 new()
+                {
+                    IsNew = true,
+                    Text = Localizer["SortableList"],
+                    Url = "sortable-list"
+                },
+                new()
                 {
                     Text = Localizer["Scroll"],
                     Url = "scroll"
diff --git a/src/BootstrapBlazor.Server/Locales/en-US.json b/src/BootstrapBlazor.Server/Locales/en-US.json
index 41178f96ce0..46e0fdb1efa 100644
--- a/src/BootstrapBlazor.Server/Locales/en-US.json
+++ b/src/BootstrapBlazor.Server/Locales/en-US.json
@@ -6659,5 +6659,25 @@
     "AttributeAutoUnobserveWhenNotIntersection": "Whether to automatically cancel the observation when element invisible",
     "AttributeOnIntersectingAsync": "The callback when intersecting",
     "AttributeChildContent": "Child component"
+  },
+  "BootstrapBlazor.Server.Components.Samples.SortableLists": {
+    "SortableListTitle": "SortableList",
+    "SortableListDescription": "Reorderable drag-and-drop lists",
+    "SortableListNormalTitle": "Simple list example",
+    "SortableListNormalIntro": "Get the root element by setting the <code>RootSelector</code> parameter of the <code>SortableListOption</code>",
+    "SortableListGroupTitle": "Group",
+    "SortableListGroupIntro": "By setting the <code>SortableListOption</code> parameter <code>Group</code> to specify the group name, elements between different groups can be dragged",
+    "SortableListCloneTitle": "Clone",
+    "SortableListCloneIntro": "Set the <code>SortableListOption</code> parameter <code>Clone</code> to set whether to clone the current element when dragging",
+    "SortableListDisableSortTitle": "Disable Sort",
+    "SortableListDisableSortIntro": "By setting the <code>SortableListOption</code> parameter <code>Sort</code> to set whether to sort the current element when dragging",
+    "SortableListHanlderTitle": "Handler",
+    "SortableListHanlderIntro": "By setting the <code>SortableListOption</code> parameter <code>Handle</code> to specify the draggable element, the entire element is dragged when the mouse drags the icon",
+    "SortableListFilterTitle": "Filter",
+    "SortableListFilterIntro": "By setting the <code>SortableListOption</code> parameter <code>Filter</code> to set conditional drag elements, the red element in the example cannot be dragged",
+    "SortableListNestTitle": "Nest",
+    "SortableListNestIntro": "By nesting the <code>SortableList</code> component",
+    "SortableListTableTitle": "Table Row",
+    "SortableListTableIntro": "By setting the <code>SortableListOption</code> parameter <code>RootSelector</code> to specify the drag root element as <code>tbody</code>, you can drag rows."
   }
 }
diff --git a/src/BootstrapBlazor.Server/Locales/zh-CN.json b/src/BootstrapBlazor.Server/Locales/zh-CN.json
index d390dc924d3..a6073a1754b 100644
--- a/src/BootstrapBlazor.Server/Locales/zh-CN.json
+++ b/src/BootstrapBlazor.Server/Locales/zh-CN.json
@@ -4727,7 +4727,8 @@
     "BootstrapIcon": "Bootstrap Icons",
     "MaterialIcon": "Material Icons",
     "ElementIcon": "饿了么图标 ElementIcon",
-    "DrawerService": "抽屉服务 DrawerService"
+    "DrawerService": "抽屉服务 DrawerService",
+    "SortableList": "拖拽组件 SortableList"
   },
   "BootstrapBlazor.Server.Components.Samples.Table.TablesHeader": {
     "TablesHeaderTitle": "表头分组功能",
@@ -6659,5 +6660,25 @@
     "AttributeAutoUnobserveWhenNotIntersection": "元素不可见时是否自动取消观察",
     "AttributeOnIntersectingAsync": "可见回调方法",
     "AttributeChildContent": "子组件"
+  },
+  "BootstrapBlazor.Server.Components.Samples.SortableLists": {
+    "SortableListTitle": "SortableList 拖拽组件",
+    "SortableListDescription": "可排序的拖拽组件",
+    "SortableListNormalTitle": "简单例子",
+    "SortableListNormalIntro": "通过设置 <code>SortableListOption</code> 参数 <code>RootSelector</code> 指定样式选择器获得根元素,通过设置 <code>OnUpdate</code> 回调方法重新设置数据源",
+    "SortableListGroupTitle": "分组共享拖拽",
+    "SortableListGroupIntro": "通过设置 <code>SortableListOption</code> 参数 <code>Group</code> 指定组名,使不同组之间元素可以拖拽",
+    "SortableListCloneTitle": "拖拽时克隆元素",
+    "SortableListCloneIntro": "通过设置 <code>SortableListOption</code> 参数 <code>Clone</code> 设置拖拽时是否克隆当前元素",
+    "SortableListDisableSortTitle": "禁止排序",
+    "SortableListDisableSortIntro": "通过设置 <code>SortableListOption</code> 参数 <code>Sort</code> 设置拖拽时是否排序当前元素",
+    "SortableListHanlderTitle": "拖拽控制元素",
+    "SortableListHanlderIntro": "通过设置 <code>SortableListOption</code> 参数 <code>Handle</code> 设置指定可拖拽元素,鼠标拖动图标时拖动整个元素",
+    "SortableListFilterTitle": "条件过滤拖拽组件",
+    "SortableListFilterIntro": "通过设置 <code>SortableListOption</code> 参数 <code>Filter</code> 设置有条件性的拖拽元素,示例中红色元素无法拖动",
+    "SortableListNestTitle": "嵌套使用",
+    "SortableListNestIntro": "通过嵌套使用 <code>SortableList</code> 组件即可",
+    "SortableListTableTitle": "表格行拖拽",
+    "SortableListTableIntro": "通过设置 <code>SortableListOption</code> 参数 <code>RootSelector</code> 指定拖拽根元素为 <code>tbody</code> 即可对行进行拖拽操作"
   }
 }
diff --git a/src/BootstrapBlazor.Server/docs.json b/src/BootstrapBlazor.Server/docs.json
index 2baf9594f11..5bfba2eb2ee 100644
--- a/src/BootstrapBlazor.Server/docs.json
+++ b/src/BootstrapBlazor.Server/docs.json
@@ -220,7 +220,8 @@
     "clipboard-service": "Clipboards",
     "image-cropper": "ImageCroppers",
     "barcode-generator": "BarcodeGenerators",
-    "zip-archive": "ZipArchives"
+    "zip-archive": "ZipArchives",
+    "sortable-list": "SortableLists"
   },
   "video": {
     "table": "BV1ap4y1x7Qn?p=1",
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/BootstrapBlazor.Sortable.csproj b/src/Extensions/Components/BootstrapBlazor.Sortable/BootstrapBlazor.Sortable.csproj
new file mode 100644
index 00000000000..9e4460dbf4e
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/BootstrapBlazor.Sortable.csproj
@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk.Razor">
+
+  <PropertyGroup>
+    <Version>8.0.0</Version>
+  </PropertyGroup>
+
+  <PropertyGroup>
+    <PackageTags>Bootstrap Blazor WebAssembly wasm UI Components Sortable</PackageTags>
+    <Description>Bootstrap UI components extensions of SortableJS</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="BootstrapBlazor" Version="8.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="BootstrapBlazor.Components" />
+  </ItemGroup>
+
+</Project>
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor
new file mode 100644
index 00000000000..530b4864b38
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor
@@ -0,0 +1,9 @@
+@namespace BootstrapBlazor.Components
+@inherits BootstrapModuleComponentBase
+@attribute [JSModuleAutoLoader("./_content/BootstrapBlazor.Sortable/Components/SortableList.razor.js", JSObjectReference = true)]
+
+<div @attributes="@AdditionalAttributes" class="@ClassString" id="@Id">
+    <CascadingValue Value="this" IsFixed="true">
+        @ChildContent
+    </CascadingValue>
+</div>
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.cs b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.cs
new file mode 100644
index 00000000000..d50c7eab29a
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.cs
@@ -0,0 +1,75 @@
+// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// Website: https://www.blazor.zone or https://argozhang.github.io/
+
+using Microsoft.AspNetCore.Components;
+using Microsoft.JSInterop;
+
+namespace BootstrapBlazor.Components;
+
+/// <summary>
+/// SortableList 组件
+/// </summary>
+public partial class SortableList
+{
+    /// <summary>
+    /// 获得/设置 配置项实例 <see cref="SortableOption"/>
+    /// </summary>
+    [Parameter]
+    public SortableOption? Option { get; set; }
+
+    /// <summary>
+    /// 获得/设置 子组件 必填项不可为空
+    /// </summary>
+    [Parameter]
+    [EditorRequired]
+    public RenderFragment? ChildContent { get; set; }
+
+    /// <summary>
+    /// 获得/设置 元素更新回调方法
+    /// </summary>
+    [Parameter]
+    public Func<int, int, Task>? OnUpdate { get; set; }
+
+    /// <summary>
+    /// 获得/设置 元素更新回调方法
+    /// </summary>
+    [Parameter]
+    public Func<int, int, Task>? OnRemove { get; set; }
+
+    private string? ClassString => CssBuilder.Default("bb-sortable")
+        .AddClassFromAttributes(AdditionalAttributes)
+        .Build();
+
+    /// <summary>
+    /// <inheritdoc />
+    /// </summary>
+    /// <returns></returns>
+    protected override Task InvokeInitAsync() => InvokeVoidAsync("init", Id, Interop, Option, OnUpdate != null, OnRemove != null);
+
+    /// <summary>
+    /// JavaScript 调用触发节点更新方法
+    /// </summary>
+    /// <returns></returns>
+    [JSInvokable]
+    public async Task TriggerUpdate(int oldIndex, int newIndex)
+    {
+        if (OnUpdate != null)
+        {
+            await OnUpdate(oldIndex, newIndex);
+        }
+    }
+
+    /// <summary>
+    /// JavaScript 调用触发节点更新方法
+    /// </summary>
+    /// <returns></returns>
+    [JSInvokable]
+    public async Task TriggerRemove(int oldIndex, int newIndex)
+    {
+        if (OnRemove != null)
+        {
+            await OnRemove(oldIndex, newIndex);
+        }
+    }
+}
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.css b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.css
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.js b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.js
new file mode 100644
index 00000000000..f9aaa5aba71
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableList.razor.js
@@ -0,0 +1,92 @@
+import Sortable from '../sortable.esm.js'
+import Data from '../../BootstrapBlazor/modules/data.js'
+
+export function init(id, invoke, options, triggerUpdate, triggerRemove) {
+    const el = document.getElementById(id);
+    if (el === null) {
+        return;
+    }
+
+    const op = getOptions(options);
+    op.triggerUpdate = triggerUpdate;
+    op.triggerRemove = triggerRemove;
+
+    let element = el;
+    if (op.rootSelector) {
+        loopCheck(id, element, invoke, op);
+    }
+    else {
+        initSortable(id, element, invoke, op);
+    }
+}
+
+const loopCheck = (id, el, invoke, op) => {
+    const check = () => {
+        const element = el.querySelector(op.rootSelector);
+        if (element === null) {
+            op.loopCheckHeightHandler = requestAnimationFrame(check);
+        }
+        else {
+            delete op.loopCheckHeightHandler;
+            initSortable(id, element, invoke, op);
+        }
+    };
+    check();
+}
+
+const initSortable = (id, element, invoke, op) => {
+    delete op.rootSelector;
+
+    op.group = {
+        name: op.group
+    };
+
+    if (op.clone === true) {
+        op.group = {
+            ...op.group,
+            pull: 'clone'
+        };
+        delete op.clone;
+    }
+
+    if (op.putback === false) {
+        op.group = {
+            ...op.group,
+            pull: 'clone',
+            put: false
+        };
+        delete op.putback;
+    }
+
+    if (op.triggerUpdate) {
+        op.onUpdate = event => {
+            event.item.remove();
+            event.to.insertBefore(event.item, event.to.childNodes[event.oldIndex]);
+            invoke.invokeMethodAsync('TriggerUpdate', event.oldIndex, event.newIndex);
+        }
+    }
+
+    if (op.triggerRemove) {
+        op.onRemove = event => {
+            event.item.remove();
+            event.from.insertBefore(event.item, event.from.childNodes[event.oldIndex]);
+            invoke.invokeMethodAsync('TriggerRemove', event.oldIndex, event.newIndex);
+        }
+    }
+
+    const sortable = Sortable.create(element, op);
+    Data.set(id, { element, sortable });
+}
+
+const getOptions = options => {
+    return {
+        rootSelector: null,
+        animation: 150,
+        ...options
+    }
+}
+
+export function dispose(id) {
+    const sortable = Data.get(id);
+    Data.remove(id);
+}
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableOption.cs b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableOption.cs
new file mode 100644
index 00000000000..c052649d738
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/Components/SortableOption.cs
@@ -0,0 +1,193 @@
+// Copyright (c) Argo Zhang (argo@live.ca). All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+// Website: https://www.blazor.zone or https://argozhang.github.io/
+
+using System.Text.Json.Serialization;
+
+namespace BootstrapBlazor.Components;
+
+/// <summary>
+/// SortableOption 配置类
+/// </summary>
+public class SortableOption
+{
+    /// <summary>
+    /// 获得/设置 目标元素选择器
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? RootSelector { get; set; }
+
+    /// <summary>
+    /// or { name: "...", pull: [true, false, 'clone', array], put: [true, false, array] }
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Group { get; set; }
+
+    /// <summary>
+    /// 获得/设置 拖动时是否克隆元素 默认 null 未设置 不克隆
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? Clone { get; set; }
+
+    /// <summary>
+    /// 获得/设置 是否允许拖动回来 默认 null 未设置 允许
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? Putback { get; set; }
+
+    /// <summary>
+    /// sorting inside list
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? Sort { get; set; }
+
+    /// <summary>
+    /// time in milliseconds to define when the sorting should start
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? Delay { get; set; }
+
+    /// <summary>
+    /// only delay if user is using touch
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? DelayOnTouchOnly { get; set; }
+
+    /// <summary>
+    /// // px, how many pixels the point should move before cancelling a delayed drag event
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? TouchStartThreshold { get; set; }
+
+    /// <summary>
+    /// Disables the sortable if set to true.
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? Disabled { get; set; }
+
+    /// <summary>
+    /// ms, animation speed moving items when sorting, `0` — without animation
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? Animation { get; set; }
+
+    /// <summary>
+    /// Easing for animation. Defaults to null. See https://easings.net/ for examples.
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Easing { get; set; }
+
+    /// <summary>
+    /// Drag handle selector within list items
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Handle { get; set; }
+
+    /// <summary>
+    /// Selectors that do not lead to dragging (String or Function)
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Filter { get; set; }
+
+    /// <summary>
+    /// Call `event.preventDefault()` when triggered `filter`
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? PreventOnFilter { get; set; }
+
+    /// <summary>
+    /// Specifies which items inside the element should be draggable
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Draggable { get; set; }
+
+    /// <summary>
+    /// HTML attribute that is used by the `toArray()` method
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? DataIdAttr { get; set; }
+
+    /// <summary>
+    /// Class name for the drop placeholder
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? GhostClass { get; set; }
+
+    /// <summary>
+    /// Class name for the chosen item
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? ChosenClass { get; set; }
+
+    /// <summary>
+    /// Class name for the dragging item
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? DragClass { get; set; }
+
+    /// <summary>
+    /// Threshold of the swap zone
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? SwapThreshold { get; set; }
+
+    /// <summary>
+    /// Will always use inverted swap zone if set to true
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? InvertSwap { get; set; }
+
+    /// <summary>
+    /// Threshold of the inverted swap zone (will be set to swapThreshold value by default)
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? InvertedSwapThreshold { get; set; }
+
+    /// <summary>
+    /// Direction of Sortable (will be detected automatically if not given)
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Direction { get; set; }
+
+    /// <summary>
+    /// ignore the HTML5 DnD behaviour and force the fallback to kick in
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? ForceFallback { get; set; }
+
+    /// <summary>
+    /// Class name for the cloned DOM Element when using forceFallback
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? FallbackClass { get; set; }
+
+    /// <summary>
+    /// Appends the cloned DOM Element into the Document's Body
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? FallbackOnBody { get; set; }
+
+    /// <summary>
+    /// Specify in pixels how far the mouse should move before it's considered as a drag.
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? FallbackTolerance { get; set; }
+
+    /// <summary>
+    /// DragoverBubble
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? DragoverBubble { get; set; }
+
+    /// <summary>
+    /// Remove the clone element when it is not showing, rather than just hiding it
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public bool? RemoveCloneOnHide { get; set; }
+
+    /// <summary>
+    /// px, distance mouse must be from empty sortable to insert drag element into it
+    /// </summary>
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public int? EmptyInsertThreshold { get; set; }
+}
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/_Imports.razor b/src/Extensions/Components/BootstrapBlazor.Sortable/_Imports.razor
new file mode 100644
index 00000000000..77285129dab
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/_Imports.razor
@@ -0,0 +1 @@
+@using Microsoft.AspNetCore.Components.Web
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/logo.png b/src/Extensions/Components/BootstrapBlazor.Sortable/logo.png
new file mode 100644
index 00000000000..a30290780f1
Binary files /dev/null and b/src/Extensions/Components/BootstrapBlazor.Sortable/logo.png differ
diff --git a/src/Extensions/Components/BootstrapBlazor.Sortable/wwwroot/sortable.esm.js b/src/Extensions/Components/BootstrapBlazor.Sortable/wwwroot/sortable.esm.js
new file mode 100644
index 00000000000..90c5c0a8d86
--- /dev/null
+++ b/src/Extensions/Components/BootstrapBlazor.Sortable/wwwroot/sortable.esm.js
@@ -0,0 +1,3352 @@
+/**!
+ * Sortable 1.15.2
+ * @author	RubaXa   <trash@rubaxa.org>
+ * @author	owenm    <owen23355@gmail.com>
+ * @license MIT
+ */
+function ownKeys(object, enumerableOnly) {
+  var keys = Object.keys(object);
+  if (Object.getOwnPropertySymbols) {
+    var symbols = Object.getOwnPropertySymbols(object);
+    if (enumerableOnly) {
+      symbols = symbols.filter(function (sym) {
+        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
+      });
+    }
+    keys.push.apply(keys, symbols);
+  }
+  return keys;
+}
+function _objectSpread2(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    if (i % 2) {
+      ownKeys(Object(source), true).forEach(function (key) {
+        _defineProperty(target, key, source[key]);
+      });
+    } else if (Object.getOwnPropertyDescriptors) {
+      Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
+    } else {
+      ownKeys(Object(source)).forEach(function (key) {
+        Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
+      });
+    }
+  }
+  return target;
+}
+function _typeof(obj) {
+  "@babel/helpers - typeof";
+
+  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
+    _typeof = function (obj) {
+      return typeof obj;
+    };
+  } else {
+    _typeof = function (obj) {
+      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
+    };
+  }
+  return _typeof(obj);
+}
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+function _extends() {
+  _extends = Object.assign || function (target) {
+    for (var i = 1; i < arguments.length; i++) {
+      var source = arguments[i];
+      for (var key in source) {
+        if (Object.prototype.hasOwnProperty.call(source, key)) {
+          target[key] = source[key];
+        }
+      }
+    }
+    return target;
+  };
+  return _extends.apply(this, arguments);
+}
+function _objectWithoutPropertiesLoose(source, excluded) {
+  if (source == null) return {};
+  var target = {};
+  var sourceKeys = Object.keys(source);
+  var key, i;
+  for (i = 0; i < sourceKeys.length; i++) {
+    key = sourceKeys[i];
+    if (excluded.indexOf(key) >= 0) continue;
+    target[key] = source[key];
+  }
+  return target;
+}
+function _objectWithoutProperties(source, excluded) {
+  if (source == null) return {};
+  var target = _objectWithoutPropertiesLoose(source, excluded);
+  var key, i;
+  if (Object.getOwnPropertySymbols) {
+    var sourceSymbolKeys = Object.getOwnPropertySymbols(source);
+    for (i = 0; i < sourceSymbolKeys.length; i++) {
+      key = sourceSymbolKeys[i];
+      if (excluded.indexOf(key) >= 0) continue;
+      if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
+      target[key] = source[key];
+    }
+  }
+  return target;
+}
+function _toConsumableArray(arr) {
+  return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
+}
+function _arrayWithoutHoles(arr) {
+  if (Array.isArray(arr)) return _arrayLikeToArray(arr);
+}
+function _iterableToArray(iter) {
+  if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter);
+}
+function _unsupportedIterableToArray(o, minLen) {
+  if (!o) return;
+  if (typeof o === "string") return _arrayLikeToArray(o, minLen);
+  var n = Object.prototype.toString.call(o).slice(8, -1);
+  if (n === "Object" && o.constructor) n = o.constructor.name;
+  if (n === "Map" || n === "Set") return Array.from(o);
+  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
+}
+function _arrayLikeToArray(arr, len) {
+  if (len == null || len > arr.length) len = arr.length;
+  for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
+  return arr2;
+}
+function _nonIterableSpread() {
+  throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
+}
+
+var version = "1.15.2";
+
+function userAgent(pattern) {
+  if (typeof window !== 'undefined' && window.navigator) {
+    return !! /*@__PURE__*/navigator.userAgent.match(pattern);
+  }
+}
+var IE11OrLess = userAgent(/(?:Trident.*rv[ :]?11\.|msie|iemobile|Windows Phone)/i);
+var Edge = userAgent(/Edge/i);
+var FireFox = userAgent(/firefox/i);
+var Safari = userAgent(/safari/i) && !userAgent(/chrome/i) && !userAgent(/android/i);
+var IOS = userAgent(/iP(ad|od|hone)/i);
+var ChromeForAndroid = userAgent(/chrome/i) && userAgent(/android/i);
+
+var captureMode = {
+  capture: false,
+  passive: false
+};
+function on(el, event, fn) {
+  el.addEventListener(event, fn, !IE11OrLess && captureMode);
+}
+function off(el, event, fn) {
+  el.removeEventListener(event, fn, !IE11OrLess && captureMode);
+}
+function matches( /**HTMLElement*/el, /**String*/selector) {
+  if (!selector) return;
+  selector[0] === '>' && (selector = selector.substring(1));
+  if (el) {
+    try {
+      if (el.matches) {
+        return el.matches(selector);
+      } else if (el.msMatchesSelector) {
+        return el.msMatchesSelector(selector);
+      } else if (el.webkitMatchesSelector) {
+        return el.webkitMatchesSelector(selector);
+      }
+    } catch (_) {
+      return false;
+    }
+  }
+  return false;
+}
+function getParentOrHost(el) {
+  return el.host && el !== document && el.host.nodeType ? el.host : el.parentNode;
+}
+function closest( /**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx, includeCTX) {
+  if (el) {
+    ctx = ctx || document;
+    do {
+      if (selector != null && (selector[0] === '>' ? el.parentNode === ctx && matches(el, selector) : matches(el, selector)) || includeCTX && el === ctx) {
+        return el;
+      }
+      if (el === ctx) break;
+      /* jshint boss:true */
+    } while (el = getParentOrHost(el));
+  }
+  return null;
+}
+var R_SPACE = /\s+/g;
+function toggleClass(el, name, state) {
+  if (el && name) {
+    if (el.classList) {
+      el.classList[state ? 'add' : 'remove'](name);
+    } else {
+      var className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' ');
+      el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' ');
+    }
+  }
+}
+function css(el, prop, val) {
+  var style = el && el.style;
+  if (style) {
+    if (val === void 0) {
+      if (document.defaultView && document.defaultView.getComputedStyle) {
+        val = document.defaultView.getComputedStyle(el, '');
+      } else if (el.currentStyle) {
+        val = el.currentStyle;
+      }
+      return prop === void 0 ? val : val[prop];
+    } else {
+      if (!(prop in style) && prop.indexOf('webkit') === -1) {
+        prop = '-webkit-' + prop;
+      }
+      style[prop] = val + (typeof val === 'string' ? '' : 'px');
+    }
+  }
+}
+function matrix(el, selfOnly) {
+  var appliedTransforms = '';
+  if (typeof el === 'string') {
+    appliedTransforms = el;
+  } else {
+    do {
+      var transform = css(el, 'transform');
+      if (transform && transform !== 'none') {
+        appliedTransforms = transform + ' ' + appliedTransforms;
+      }
+      /* jshint boss:true */
+    } while (!selfOnly && (el = el.parentNode));
+  }
+  var matrixFn = window.DOMMatrix || window.WebKitCSSMatrix || window.CSSMatrix || window.MSCSSMatrix;
+  /*jshint -W056 */
+  return matrixFn && new matrixFn(appliedTransforms);
+}
+function find(ctx, tagName, iterator) {
+  if (ctx) {
+    var list = ctx.getElementsByTagName(tagName),
+      i = 0,
+      n = list.length;
+    if (iterator) {
+      for (; i < n; i++) {
+        iterator(list[i], i);
+      }
+    }
+    return list;
+  }
+  return [];
+}
+function getWindowScrollingElement() {
+  var scrollingElement = document.scrollingElement;
+  if (scrollingElement) {
+    return scrollingElement;
+  } else {
+    return document.documentElement;
+  }
+}
+
+/**
+ * Returns the "bounding client rect" of given element
+ * @param  {HTMLElement} el                       The element whose boundingClientRect is wanted
+ * @param  {[Boolean]} relativeToContainingBlock  Whether the rect should be relative to the containing block of (including) the container
+ * @param  {[Boolean]} relativeToNonStaticParent  Whether the rect should be relative to the relative parent of (including) the contaienr
+ * @param  {[Boolean]} undoScale                  Whether the container's scale() should be undone
+ * @param  {[HTMLElement]} container              The parent the element will be placed in
+ * @return {Object}                               The boundingClientRect of el, with specified adjustments
+ */
+function getRect(el, relativeToContainingBlock, relativeToNonStaticParent, undoScale, container) {
+  if (!el.getBoundingClientRect && el !== window) return;
+  var elRect, top, left, bottom, right, height, width;
+  if (el !== window && el.parentNode && el !== getWindowScrollingElement()) {
+    elRect = el.getBoundingClientRect();
+    top = elRect.top;
+    left = elRect.left;
+    bottom = elRect.bottom;
+    right = elRect.right;
+    height = elRect.height;
+    width = elRect.width;
+  } else {
+    top = 0;
+    left = 0;
+    bottom = window.innerHeight;
+    right = window.innerWidth;
+    height = window.innerHeight;
+    width = window.innerWidth;
+  }
+  if ((relativeToContainingBlock || relativeToNonStaticParent) && el !== window) {
+    // Adjust for translate()
+    container = container || el.parentNode;
+
+    // solves #1123 (see: https://stackoverflow.com/a/37953806/6088312)
+    // Not needed on <= IE11
+    if (!IE11OrLess) {
+      do {
+        if (container && container.getBoundingClientRect && (css(container, 'transform') !== 'none' || relativeToNonStaticParent && css(container, 'position') !== 'static')) {
+          var containerRect = container.getBoundingClientRect();
+
+          // Set relative to edges of padding box of container
+          top -= containerRect.top + parseInt(css(container, 'border-top-width'));
+          left -= containerRect.left + parseInt(css(container, 'border-left-width'));
+          bottom = top + elRect.height;
+          right = left + elRect.width;
+          break;
+        }
+        /* jshint boss:true */
+      } while (container = container.parentNode);
+    }
+  }
+  if (undoScale && el !== window) {
+    // Adjust for scale()
+    var elMatrix = matrix(container || el),
+      scaleX = elMatrix && elMatrix.a,
+      scaleY = elMatrix && elMatrix.d;
+    if (elMatrix) {
+      top /= scaleY;
+      left /= scaleX;
+      width /= scaleX;
+      height /= scaleY;
+      bottom = top + height;
+      right = left + width;
+    }
+  }
+  return {
+    top: top,
+    left: left,
+    bottom: bottom,
+    right: right,
+    width: width,
+    height: height
+  };
+}
+
+/**
+ * Checks if a side of an element is scrolled past a side of its parents
+ * @param  {HTMLElement}  el           The element who's side being scrolled out of view is in question
+ * @param  {String}       elSide       Side of the element in question ('top', 'left', 'right', 'bottom')
+ * @param  {String}       parentSide   Side of the parent in question ('top', 'left', 'right', 'bottom')
+ * @return {HTMLElement}               The parent scroll element that the el's side is scrolled past, or null if there is no such element
+ */
+function isScrolledPast(el, elSide, parentSide) {
+  var parent = getParentAutoScrollElement(el, true),
+    elSideVal = getRect(el)[elSide];
+
+  /* jshint boss:true */
+  while (parent) {
+    var parentSideVal = getRect(parent)[parentSide],
+      visible = void 0;
+    if (parentSide === 'top' || parentSide === 'left') {
+      visible = elSideVal >= parentSideVal;
+    } else {
+      visible = elSideVal <= parentSideVal;
+    }
+    if (!visible) return parent;
+    if (parent === getWindowScrollingElement()) break;
+    parent = getParentAutoScrollElement(parent, false);
+  }
+  return false;
+}
+
+/**
+ * Gets nth child of el, ignoring hidden children, sortable's elements (does not ignore clone if it's visible)
+ * and non-draggable elements
+ * @param  {HTMLElement} el       The parent element
+ * @param  {Number} childNum      The index of the child
+ * @param  {Object} options       Parent Sortable's options
+ * @return {HTMLElement}          The child at index childNum, or null if not found
+ */
+function getChild(el, childNum, options, includeDragEl) {
+  var currentChild = 0,
+    i = 0,
+    children = el.children;
+  while (i < children.length) {
+    if (children[i].style.display !== 'none' && children[i] !== Sortable.ghost && (includeDragEl || children[i] !== Sortable.dragged) && closest(children[i], options.draggable, el, false)) {
+      if (currentChild === childNum) {
+        return children[i];
+      }
+      currentChild++;
+    }
+    i++;
+  }
+  return null;
+}
+
+/**
+ * Gets the last child in the el, ignoring ghostEl or invisible elements (clones)
+ * @param  {HTMLElement} el       Parent element
+ * @param  {selector} selector    Any other elements that should be ignored
+ * @return {HTMLElement}          The last child, ignoring ghostEl
+ */
+function lastChild(el, selector) {
+  var last = el.lastElementChild;
+  while (last && (last === Sortable.ghost || css(last, 'display') === 'none' || selector && !matches(last, selector))) {
+    last = last.previousElementSibling;
+  }
+  return last || null;
+}
+
+/**
+ * Returns the index of an element within its parent for a selected set of
+ * elements
+ * @param  {HTMLElement} el
+ * @param  {selector} selector
+ * @return {number}
+ */
+function index(el, selector) {
+  var index = 0;
+  if (!el || !el.parentNode) {
+    return -1;
+  }
+
+  /* jshint boss:true */
+  while (el = el.previousElementSibling) {
+    if (el.nodeName.toUpperCase() !== 'TEMPLATE' && el !== Sortable.clone && (!selector || matches(el, selector))) {
+      index++;
+    }
+  }
+  return index;
+}
+
+/**
+ * Returns the scroll offset of the given element, added with all the scroll offsets of parent elements.
+ * The value is returned in real pixels.
+ * @param  {HTMLElement} el
+ * @return {Array}             Offsets in the format of [left, top]
+ */
+function getRelativeScrollOffset(el) {
+  var offsetLeft = 0,
+    offsetTop = 0,
+    winScroller = getWindowScrollingElement();
+  if (el) {
+    do {
+      var elMatrix = matrix(el),
+        scaleX = elMatrix.a,
+        scaleY = elMatrix.d;
+      offsetLeft += el.scrollLeft * scaleX;
+      offsetTop += el.scrollTop * scaleY;
+    } while (el !== winScroller && (el = el.parentNode));
+  }
+  return [offsetLeft, offsetTop];
+}
+
+/**
+ * Returns the index of the object within the given array
+ * @param  {Array} arr   Array that may or may not hold the object
+ * @param  {Object} obj  An object that has a key-value pair unique to and identical to a key-value pair in the object you want to find
+ * @return {Number}      The index of the object in the array, or -1
+ */
+function indexOfObject(arr, obj) {
+  for (var i in arr) {
+    if (!arr.hasOwnProperty(i)) continue;
+    for (var key in obj) {
+      if (obj.hasOwnProperty(key) && obj[key] === arr[i][key]) return Number(i);
+    }
+  }
+  return -1;
+}
+function getParentAutoScrollElement(el, includeSelf) {
+  // skip to window
+  if (!el || !el.getBoundingClientRect) return getWindowScrollingElement();
+  var elem = el;
+  var gotSelf = false;
+  do {
+    // we don't need to get elem css if it isn't even overflowing in the first place (performance)
+    if (elem.clientWidth < elem.scrollWidth || elem.clientHeight < elem.scrollHeight) {
+      var elemCSS = css(elem);
+      if (elem.clientWidth < elem.scrollWidth && (elemCSS.overflowX == 'auto' || elemCSS.overflowX == 'scroll') || elem.clientHeight < elem.scrollHeight && (elemCSS.overflowY == 'auto' || elemCSS.overflowY == 'scroll')) {
+        if (!elem.getBoundingClientRect || elem === document.body) return getWindowScrollingElement();
+        if (gotSelf || includeSelf) return elem;
+        gotSelf = true;
+      }
+    }
+    /* jshint boss:true */
+  } while (elem = elem.parentNode);
+  return getWindowScrollingElement();
+}
+function extend(dst, src) {
+  if (dst && src) {
+    for (var key in src) {
+      if (src.hasOwnProperty(key)) {
+        dst[key] = src[key];
+      }
+    }
+  }
+  return dst;
+}
+function isRectEqual(rect1, rect2) {
+  return Math.round(rect1.top) === Math.round(rect2.top) && Math.round(rect1.left) === Math.round(rect2.left) && Math.round(rect1.height) === Math.round(rect2.height) && Math.round(rect1.width) === Math.round(rect2.width);
+}
+var _throttleTimeout;
+function throttle(callback, ms) {
+  return function () {
+    if (!_throttleTimeout) {
+      var args = arguments,
+        _this = this;
+      if (args.length === 1) {
+        callback.call(_this, args[0]);
+      } else {
+        callback.apply(_this, args);
+      }
+      _throttleTimeout = setTimeout(function () {
+        _throttleTimeout = void 0;
+      }, ms);
+    }
+  };
+}
+function cancelThrottle() {
+  clearTimeout(_throttleTimeout);
+  _throttleTimeout = void 0;
+}
+function scrollBy(el, x, y) {
+  el.scrollLeft += x;
+  el.scrollTop += y;
+}
+function clone(el) {
+  var Polymer = window.Polymer;
+  var $ = window.jQuery || window.Zepto;
+  if (Polymer && Polymer.dom) {
+    return Polymer.dom(el).cloneNode(true);
+  } else if ($) {
+    return $(el).clone(true)[0];
+  } else {
+    return el.cloneNode(true);
+  }
+}
+function setRect(el, rect) {
+  css(el, 'position', 'absolute');
+  css(el, 'top', rect.top);
+  css(el, 'left', rect.left);
+  css(el, 'width', rect.width);
+  css(el, 'height', rect.height);
+}
+function unsetRect(el) {
+  css(el, 'position', '');
+  css(el, 'top', '');
+  css(el, 'left', '');
+  css(el, 'width', '');
+  css(el, 'height', '');
+}
+function getChildContainingRectFromElement(container, options, ghostEl) {
+  var rect = {};
+  Array.from(container.children).forEach(function (child) {
+    var _rect$left, _rect$top, _rect$right, _rect$bottom;
+    if (!closest(child, options.draggable, container, false) || child.animated || child === ghostEl) return;
+    var childRect = getRect(child);
+    rect.left = Math.min((_rect$left = rect.left) !== null && _rect$left !== void 0 ? _rect$left : Infinity, childRect.left);
+    rect.top = Math.min((_rect$top = rect.top) !== null && _rect$top !== void 0 ? _rect$top : Infinity, childRect.top);
+    rect.right = Math.max((_rect$right = rect.right) !== null && _rect$right !== void 0 ? _rect$right : -Infinity, childRect.right);
+    rect.bottom = Math.max((_rect$bottom = rect.bottom) !== null && _rect$bottom !== void 0 ? _rect$bottom : -Infinity, childRect.bottom);
+  });
+  rect.width = rect.right - rect.left;
+  rect.height = rect.bottom - rect.top;
+  rect.x = rect.left;
+  rect.y = rect.top;
+  return rect;
+}
+var expando = 'Sortable' + new Date().getTime();
+
+function AnimationStateManager() {
+  var animationStates = [],
+    animationCallbackId;
+  return {
+    captureAnimationState: function captureAnimationState() {
+      animationStates = [];
+      if (!this.options.animation) return;
+      var children = [].slice.call(this.el.children);
+      children.forEach(function (child) {
+        if (css(child, 'display') === 'none' || child === Sortable.ghost) return;
+        animationStates.push({
+          target: child,
+          rect: getRect(child)
+        });
+        var fromRect = _objectSpread2({}, animationStates[animationStates.length - 1].rect);
+
+        // If animating: compensate for current animation
+        if (child.thisAnimationDuration) {
+          var childMatrix = matrix(child, true);
+          if (childMatrix) {
+            fromRect.top -= childMatrix.f;
+            fromRect.left -= childMatrix.e;
+          }
+        }
+        child.fromRect = fromRect;
+      });
+    },
+    addAnimationState: function addAnimationState(state) {
+      animationStates.push(state);
+    },
+    removeAnimationState: function removeAnimationState(target) {
+      animationStates.splice(indexOfObject(animationStates, {
+        target: target
+      }), 1);
+    },
+    animateAll: function animateAll(callback) {
+      var _this = this;
+      if (!this.options.animation) {
+        clearTimeout(animationCallbackId);
+        if (typeof callback === 'function') callback();
+        return;
+      }
+      var animating = false,
+        animationTime = 0;
+      animationStates.forEach(function (state) {
+        var time = 0,
+          target = state.target,
+          fromRect = target.fromRect,
+          toRect = getRect(target),
+          prevFromRect = target.prevFromRect,
+          prevToRect = target.prevToRect,
+          animatingRect = state.rect,
+          targetMatrix = matrix(target, true);
+        if (targetMatrix) {
+          // Compensate for current animation
+          toRect.top -= targetMatrix.f;
+          toRect.left -= targetMatrix.e;
+        }
+        target.toRect = toRect;
+        if (target.thisAnimationDuration) {
+          // Could also check if animatingRect is between fromRect and toRect
+          if (isRectEqual(prevFromRect, toRect) && !isRectEqual(fromRect, toRect) &&
+          // Make sure animatingRect is on line between toRect & fromRect
+          (animatingRect.top - toRect.top) / (animatingRect.left - toRect.left) === (fromRect.top - toRect.top) / (fromRect.left - toRect.left)) {
+            // If returning to same place as started from animation and on same axis
+            time = calculateRealTime(animatingRect, prevFromRect, prevToRect, _this.options);
+          }
+        }
+
+        // if fromRect != toRect: animate
+        if (!isRectEqual(toRect, fromRect)) {
+          target.prevFromRect = fromRect;
+          target.prevToRect = toRect;
+          if (!time) {
+            time = _this.options.animation;
+          }
+          _this.animate(target, animatingRect, toRect, time);
+        }
+        if (time) {
+          animating = true;
+          animationTime = Math.max(animationTime, time);
+          clearTimeout(target.animationResetTimer);
+          target.animationResetTimer = setTimeout(function () {
+            target.animationTime = 0;
+            target.prevFromRect = null;
+            target.fromRect = null;
+            target.prevToRect = null;
+            target.thisAnimationDuration = null;
+          }, time);
+          target.thisAnimationDuration = time;
+        }
+      });
+      clearTimeout(animationCallbackId);
+      if (!animating) {
+        if (typeof callback === 'function') callback();
+      } else {
+        animationCallbackId = setTimeout(function () {
+          if (typeof callback === 'function') callback();
+        }, animationTime);
+      }
+      animationStates = [];
+    },
+    animate: function animate(target, currentRect, toRect, duration) {
+      if (duration) {
+        css(target, 'transition', '');
+        css(target, 'transform', '');
+        var elMatrix = matrix(this.el),
+          scaleX = elMatrix && elMatrix.a,
+          scaleY = elMatrix && elMatrix.d,
+          translateX = (currentRect.left - toRect.left) / (scaleX || 1),
+          translateY = (currentRect.top - toRect.top) / (scaleY || 1);
+        target.animatingX = !!translateX;
+        target.animatingY = !!translateY;
+        css(target, 'transform', 'translate3d(' + translateX + 'px,' + translateY + 'px,0)');
+        this.forRepaintDummy = repaint(target); // repaint
+
+        css(target, 'transition', 'transform ' + duration + 'ms' + (this.options.easing ? ' ' + this.options.easing : ''));
+        css(target, 'transform', 'translate3d(0,0,0)');
+        typeof target.animated === 'number' && clearTimeout(target.animated);
+        target.animated = setTimeout(function () {
+          css(target, 'transition', '');
+          css(target, 'transform', '');
+          target.animated = false;
+          target.animatingX = false;
+          target.animatingY = false;
+        }, duration);
+      }
+    }
+  };
+}
+function repaint(target) {
+  return target.offsetWidth;
+}
+function calculateRealTime(animatingRect, fromRect, toRect, options) {
+  return Math.sqrt(Math.pow(fromRect.top - animatingRect.top, 2) + Math.pow(fromRect.left - animatingRect.left, 2)) / Math.sqrt(Math.pow(fromRect.top - toRect.top, 2) + Math.pow(fromRect.left - toRect.left, 2)) * options.animation;
+}
+
+var plugins = [];
+var defaults = {
+  initializeByDefault: true
+};
+var PluginManager = {
+  mount: function mount(plugin) {
+    // Set default static properties
+    for (var option in defaults) {
+      if (defaults.hasOwnProperty(option) && !(option in plugin)) {
+        plugin[option] = defaults[option];
+      }
+    }
+    plugins.forEach(function (p) {
+      if (p.pluginName === plugin.pluginName) {
+        throw "Sortable: Cannot mount plugin ".concat(plugin.pluginName, " more than once");
+      }
+    });
+    plugins.push(plugin);
+  },
+  pluginEvent: function pluginEvent(eventName, sortable, evt) {
+    var _this = this;
+    this.eventCanceled = false;
+    evt.cancel = function () {
+      _this.eventCanceled = true;
+    };
+    var eventNameGlobal = eventName + 'Global';
+    plugins.forEach(function (plugin) {
+      if (!sortable[plugin.pluginName]) return;
+      // Fire global events if it exists in this sortable
+      if (sortable[plugin.pluginName][eventNameGlobal]) {
+        sortable[plugin.pluginName][eventNameGlobal](_objectSpread2({
+          sortable: sortable
+        }, evt));
+      }
+
+      // Only fire plugin event if plugin is enabled in this sortable,
+      // and plugin has event defined
+      if (sortable.options[plugin.pluginName] && sortable[plugin.pluginName][eventName]) {
+        sortable[plugin.pluginName][eventName](_objectSpread2({
+          sortable: sortable
+        }, evt));
+      }
+    });
+  },
+  initializePlugins: function initializePlugins(sortable, el, defaults, options) {
+    plugins.forEach(function (plugin) {
+      var pluginName = plugin.pluginName;
+      if (!sortable.options[pluginName] && !plugin.initializeByDefault) return;
+      var initialized = new plugin(sortable, el, sortable.options);
+      initialized.sortable = sortable;
+      initialized.options = sortable.options;
+      sortable[pluginName] = initialized;
+
+      // Add default options from plugin
+      _extends(defaults, initialized.defaults);
+    });
+    for (var option in sortable.options) {
+      if (!sortable.options.hasOwnProperty(option)) continue;
+      var modified = this.modifyOption(sortable, option, sortable.options[option]);
+      if (typeof modified !== 'undefined') {
+        sortable.options[option] = modified;
+      }
+    }
+  },
+  getEventProperties: function getEventProperties(name, sortable) {
+    var eventProperties = {};
+    plugins.forEach(function (plugin) {
+      if (typeof plugin.eventProperties !== 'function') return;
+      _extends(eventProperties, plugin.eventProperties.call(sortable[plugin.pluginName], name));
+    });
+    return eventProperties;
+  },
+  modifyOption: function modifyOption(sortable, name, value) {
+    var modifiedValue;
+    plugins.forEach(function (plugin) {
+      // Plugin must exist on the Sortable
+      if (!sortable[plugin.pluginName]) return;
+
+      // If static option listener exists for this option, call in the context of the Sortable's instance of this plugin
+      if (plugin.optionListeners && typeof plugin.optionListeners[name] === 'function') {
+        modifiedValue = plugin.optionListeners[name].call(sortable[plugin.pluginName], value);
+      }
+    });
+    return modifiedValue;
+  }
+};
+
+function dispatchEvent(_ref) {
+  var sortable = _ref.sortable,
+    rootEl = _ref.rootEl,
+    name = _ref.name,
+    targetEl = _ref.targetEl,
+    cloneEl = _ref.cloneEl,
+    toEl = _ref.toEl,
+    fromEl = _ref.fromEl,
+    oldIndex = _ref.oldIndex,
+    newIndex = _ref.newIndex,
+    oldDraggableIndex = _ref.oldDraggableIndex,
+    newDraggableIndex = _ref.newDraggableIndex,
+    originalEvent = _ref.originalEvent,
+    putSortable = _ref.putSortable,
+    extraEventProperties = _ref.extraEventProperties;
+  sortable = sortable || rootEl && rootEl[expando];
+  if (!sortable) return;
+  var evt,
+    options = sortable.options,
+    onName = 'on' + name.charAt(0).toUpperCase() + name.substr(1);
+  // Support for new CustomEvent feature
+  if (window.CustomEvent && !IE11OrLess && !Edge) {
+    evt = new CustomEvent(name, {
+      bubbles: true,
+      cancelable: true
+    });
+  } else {
+    evt = document.createEvent('Event');
+    evt.initEvent(name, true, true);
+  }
+  evt.to = toEl || rootEl;
+  evt.from = fromEl || rootEl;
+  evt.item = targetEl || rootEl;
+  evt.clone = cloneEl;
+  evt.oldIndex = oldIndex;
+  evt.newIndex = newIndex;
+  evt.oldDraggableIndex = oldDraggableIndex;
+  evt.newDraggableIndex = newDraggableIndex;
+  evt.originalEvent = originalEvent;
+  evt.pullMode = putSortable ? putSortable.lastPutMode : undefined;
+  var allEventProperties = _objectSpread2(_objectSpread2({}, extraEventProperties), PluginManager.getEventProperties(name, sortable));
+  for (var option in allEventProperties) {
+    evt[option] = allEventProperties[option];
+  }
+  if (rootEl) {
+    rootEl.dispatchEvent(evt);
+  }
+  if (options[onName]) {
+    options[onName].call(sortable, evt);
+  }
+}
+
+var _excluded = ["evt"];
+var pluginEvent = function pluginEvent(eventName, sortable) {
+  var _ref = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
+    originalEvent = _ref.evt,
+    data = _objectWithoutProperties(_ref, _excluded);
+  PluginManager.pluginEvent.bind(Sortable)(eventName, sortable, _objectSpread2({
+    dragEl: dragEl,
+    parentEl: parentEl,
+    ghostEl: ghostEl,
+    rootEl: rootEl,
+    nextEl: nextEl,
+    lastDownEl: lastDownEl,
+    cloneEl: cloneEl,
+    cloneHidden: cloneHidden,
+    dragStarted: moved,
+    putSortable: putSortable,
+    activeSortable: Sortable.active,
+    originalEvent: originalEvent,
+    oldIndex: oldIndex,
+    oldDraggableIndex: oldDraggableIndex,
+    newIndex: newIndex,
+    newDraggableIndex: newDraggableIndex,
+    hideGhostForTarget: _hideGhostForTarget,
+    unhideGhostForTarget: _unhideGhostForTarget,
+    cloneNowHidden: function cloneNowHidden() {
+      cloneHidden = true;
+    },
+    cloneNowShown: function cloneNowShown() {
+      cloneHidden = false;
+    },
+    dispatchSortableEvent: function dispatchSortableEvent(name) {
+      _dispatchEvent({
+        sortable: sortable,
+        name: name,
+        originalEvent: originalEvent
+      });
+    }
+  }, data));
+};
+function _dispatchEvent(info) {
+  dispatchEvent(_objectSpread2({
+    putSortable: putSortable,
+    cloneEl: cloneEl,
+    targetEl: dragEl,
+    rootEl: rootEl,
+    oldIndex: oldIndex,
+    oldDraggableIndex: oldDraggableIndex,
+    newIndex: newIndex,
+    newDraggableIndex: newDraggableIndex
+  }, info));
+}
+var dragEl,
+  parentEl,
+  ghostEl,
+  rootEl,
+  nextEl,
+  lastDownEl,
+  cloneEl,
+  cloneHidden,
+  oldIndex,
+  newIndex,
+  oldDraggableIndex,
+  newDraggableIndex,
+  activeGroup,
+  putSortable,
+  awaitingDragStarted = false,
+  ignoreNextClick = false,
+  sortables = [],
+  tapEvt,
+  touchEvt,
+  lastDx,
+  lastDy,
+  tapDistanceLeft,
+  tapDistanceTop,
+  moved,
+  lastTarget,
+  lastDirection,
+  pastFirstInvertThresh = false,
+  isCircumstantialInvert = false,
+  targetMoveDistance,
+  // For positioning ghost absolutely
+  ghostRelativeParent,
+  ghostRelativeParentInitialScroll = [],
+  // (left, top)
+
+  _silent = false,
+  savedInputChecked = [];
+
+/** @const */
+var documentExists = typeof document !== 'undefined',
+  PositionGhostAbsolutely = IOS,
+  CSSFloatProperty = Edge || IE11OrLess ? 'cssFloat' : 'float',
+  // This will not pass for IE9, because IE9 DnD only works on anchors
+  supportDraggable = documentExists && !ChromeForAndroid && !IOS && 'draggable' in document.createElement('div'),
+  supportCssPointerEvents = function () {
+    if (!documentExists) return;
+    // false when <= IE11
+    if (IE11OrLess) {
+      return false;
+    }
+    var el = document.createElement('x');
+    el.style.cssText = 'pointer-events:auto';
+    return el.style.pointerEvents === 'auto';
+  }(),
+  _detectDirection = function _detectDirection(el, options) {
+    var elCSS = css(el),
+      elWidth = parseInt(elCSS.width) - parseInt(elCSS.paddingLeft) - parseInt(elCSS.paddingRight) - parseInt(elCSS.borderLeftWidth) - parseInt(elCSS.borderRightWidth),
+      child1 = getChild(el, 0, options),
+      child2 = getChild(el, 1, options),
+      firstChildCSS = child1 && css(child1),
+      secondChildCSS = child2 && css(child2),
+      firstChildWidth = firstChildCSS && parseInt(firstChildCSS.marginLeft) + parseInt(firstChildCSS.marginRight) + getRect(child1).width,
+      secondChildWidth = secondChildCSS && parseInt(secondChildCSS.marginLeft) + parseInt(secondChildCSS.marginRight) + getRect(child2).width;
+    if (elCSS.display === 'flex') {
+      return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse' ? 'vertical' : 'horizontal';
+    }
+    if (elCSS.display === 'grid') {
+      return elCSS.gridTemplateColumns.split(' ').length <= 1 ? 'vertical' : 'horizontal';
+    }
+    if (child1 && firstChildCSS["float"] && firstChildCSS["float"] !== 'none') {
+      var touchingSideChild2 = firstChildCSS["float"] === 'left' ? 'left' : 'right';
+      return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ? 'vertical' : 'horizontal';
+    }
+    return child1 && (firstChildCSS.display === 'block' || firstChildCSS.display === 'flex' || firstChildCSS.display === 'table' || firstChildCSS.display === 'grid' || firstChildWidth >= elWidth && elCSS[CSSFloatProperty] === 'none' || child2 && elCSS[CSSFloatProperty] === 'none' && firstChildWidth + secondChildWidth > elWidth) ? 'vertical' : 'horizontal';
+  },
+  _dragElInRowColumn = function _dragElInRowColumn(dragRect, targetRect, vertical) {
+    var dragElS1Opp = vertical ? dragRect.left : dragRect.top,
+      dragElS2Opp = vertical ? dragRect.right : dragRect.bottom,
+      dragElOppLength = vertical ? dragRect.width : dragRect.height,
+      targetS1Opp = vertical ? targetRect.left : targetRect.top,
+      targetS2Opp = vertical ? targetRect.right : targetRect.bottom,
+      targetOppLength = vertical ? targetRect.width : targetRect.height;
+    return dragElS1Opp === targetS1Opp || dragElS2Opp === targetS2Opp || dragElS1Opp + dragElOppLength / 2 === targetS1Opp + targetOppLength / 2;
+  },
+  /**
+   * Detects first nearest empty sortable to X and Y position using emptyInsertThreshold.
+   * @param  {Number} x      X position
+   * @param  {Number} y      Y position
+   * @return {HTMLElement}   Element of the first found nearest Sortable
+   */
+  _detectNearestEmptySortable = function _detectNearestEmptySortable(x, y) {
+    var ret;
+    sortables.some(function (sortable) {
+      var threshold = sortable[expando].options.emptyInsertThreshold;
+      if (!threshold || lastChild(sortable)) return;
+      var rect = getRect(sortable),
+        insideHorizontally = x >= rect.left - threshold && x <= rect.right + threshold,
+        insideVertically = y >= rect.top - threshold && y <= rect.bottom + threshold;
+      if (insideHorizontally && insideVertically) {
+        return ret = sortable;
+      }
+    });
+    return ret;
+  },
+  _prepareGroup = function _prepareGroup(options) {
+    function toFn(value, pull) {
+      return function (to, from, dragEl, evt) {
+        var sameGroup = to.options.group.name && from.options.group.name && to.options.group.name === from.options.group.name;
+        if (value == null && (pull || sameGroup)) {
+          // Default pull value
+          // Default pull and put value if same group
+          return true;
+        } else if (value == null || value === false) {
+          return false;
+        } else if (pull && value === 'clone') {
+          return value;
+        } else if (typeof value === 'function') {
+          return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
+        } else {
+          var otherGroup = (pull ? to : from).options.group.name;
+          return value === true || typeof value === 'string' && value === otherGroup || value.join && value.indexOf(otherGroup) > -1;
+        }
+      };
+    }
+    var group = {};
+    var originalGroup = options.group;
+    if (!originalGroup || _typeof(originalGroup) != 'object') {
+      originalGroup = {
+        name: originalGroup
+      };
+    }
+    group.name = originalGroup.name;
+    group.checkPull = toFn(originalGroup.pull, true);
+    group.checkPut = toFn(originalGroup.put);
+    group.revertClone = originalGroup.revertClone;
+    options.group = group;
+  },
+  _hideGhostForTarget = function _hideGhostForTarget() {
+    if (!supportCssPointerEvents && ghostEl) {
+      css(ghostEl, 'display', 'none');
+    }
+  },
+  _unhideGhostForTarget = function _unhideGhostForTarget() {
+    if (!supportCssPointerEvents && ghostEl) {
+      css(ghostEl, 'display', '');
+    }
+  };
+
+// #1184 fix - Prevent click event on fallback if dragged but item not changed position
+if (documentExists && !ChromeForAndroid) {
+  document.addEventListener('click', function (evt) {
+    if (ignoreNextClick) {
+      evt.preventDefault();
+      evt.stopPropagation && evt.stopPropagation();
+      evt.stopImmediatePropagation && evt.stopImmediatePropagation();
+      ignoreNextClick = false;
+      return false;
+    }
+  }, true);
+}
+var nearestEmptyInsertDetectEvent = function nearestEmptyInsertDetectEvent(evt) {
+  if (dragEl) {
+    evt = evt.touches ? evt.touches[0] : evt;
+    var nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);
+    if (nearest) {
+      // Create imitation event
+      var event = {};
+      for (var i in evt) {
+        if (evt.hasOwnProperty(i)) {
+          event[i] = evt[i];
+        }
+      }
+      event.target = event.rootEl = nearest;
+      event.preventDefault = void 0;
+      event.stopPropagation = void 0;
+      nearest[expando]._onDragOver(event);
+    }
+  }
+};
+var _checkOutsideTargetEl = function _checkOutsideTargetEl(evt) {
+  if (dragEl) {
+    dragEl.parentNode[expando]._isOutsideThisEl(evt.target);
+  }
+};
+
+/**
+ * @class  Sortable
+ * @param  {HTMLElement}  el
+ * @param  {Object}       [options]
+ */
+function Sortable(el, options) {
+  if (!(el && el.nodeType && el.nodeType === 1)) {
+    throw "Sortable: `el` must be an HTMLElement, not ".concat({}.toString.call(el));
+  }
+  this.el = el; // root element
+  this.options = options = _extends({}, options);
+
+  // Export instance
+  el[expando] = this;
+  var defaults = {
+    group: null,
+    sort: true,
+    disabled: false,
+    store: null,
+    handle: null,
+    draggable: /^[uo]l$/i.test(el.nodeName) ? '>li' : '>*',
+    swapThreshold: 1,
+    // percentage; 0 <= x <= 1
+    invertSwap: false,
+    // invert always
+    invertedSwapThreshold: null,
+    // will be set to same as swapThreshold if default
+    removeCloneOnHide: true,
+    direction: function direction() {
+      return _detectDirection(el, this.options);
+    },
+    ghostClass: 'sortable-ghost',
+    chosenClass: 'sortable-chosen',
+    dragClass: 'sortable-drag',
+    ignore: 'a, img',
+    filter: null,
+    preventOnFilter: true,
+    animation: 0,
+    easing: null,
+    setData: function setData(dataTransfer, dragEl) {
+      dataTransfer.setData('Text', dragEl.textContent);
+    },
+    dropBubble: false,
+    dragoverBubble: false,
+    dataIdAttr: 'data-id',
+    delay: 0,
+    delayOnTouchOnly: false,
+    touchStartThreshold: (Number.parseInt ? Number : window).parseInt(window.devicePixelRatio, 10) || 1,
+    forceFallback: false,
+    fallbackClass: 'sortable-fallback',
+    fallbackOnBody: false,
+    fallbackTolerance: 0,
+    fallbackOffset: {
+      x: 0,
+      y: 0
+    },
+    supportPointer: Sortable.supportPointer !== false && 'PointerEvent' in window && !Safari,
+    emptyInsertThreshold: 5
+  };
+  PluginManager.initializePlugins(this, el, defaults);
+
+  // Set default options
+  for (var name in defaults) {
+    !(name in options) && (options[name] = defaults[name]);
+  }
+  _prepareGroup(options);
+
+  // Bind all private methods
+  for (var fn in this) {
+    if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
+      this[fn] = this[fn].bind(this);
+    }
+  }
+
+  // Setup drag mode
+  this.nativeDraggable = options.forceFallback ? false : supportDraggable;
+  if (this.nativeDraggable) {
+    // Touch start threshold cannot be greater than the native dragstart threshold
+    this.options.touchStartThreshold = 1;
+  }
+
+  // Bind events
+  if (options.supportPointer) {
+    on(el, 'pointerdown', this._onTapStart);
+  } else {
+    on(el, 'mousedown', this._onTapStart);
+    on(el, 'touchstart', this._onTapStart);
+  }
+  if (this.nativeDraggable) {
+    on(el, 'dragover', this);
+    on(el, 'dragenter', this);
+  }
+  sortables.push(this.el);
+
+  // Restore sorting
+  options.store && options.store.get && this.sort(options.store.get(this) || []);
+
+  // Add animation state manager
+  _extends(this, AnimationStateManager());
+}
+Sortable.prototype = /** @lends Sortable.prototype */{
+  constructor: Sortable,
+  _isOutsideThisEl: function _isOutsideThisEl(target) {
+    if (!this.el.contains(target) && target !== this.el) {
+      lastTarget = null;
+    }
+  },
+  _getDirection: function _getDirection(evt, target) {
+    return typeof this.options.direction === 'function' ? this.options.direction.call(this, evt, target, dragEl) : this.options.direction;
+  },
+  _onTapStart: function _onTapStart( /** Event|TouchEvent */evt) {
+    if (!evt.cancelable) return;
+    var _this = this,
+      el = this.el,
+      options = this.options,
+      preventOnFilter = options.preventOnFilter,
+      type = evt.type,
+      touch = evt.touches && evt.touches[0] || evt.pointerType && evt.pointerType === 'touch' && evt,
+      target = (touch || evt).target,
+      originalTarget = evt.target.shadowRoot && (evt.path && evt.path[0] || evt.composedPath && evt.composedPath()[0]) || target,
+      filter = options.filter;
+    _saveInputCheckedState(el);
+
+    // Don't trigger start event when an element is been dragged, otherwise the evt.oldindex always wrong when set option.group.
+    if (dragEl) {
+      return;
+    }
+    if (/mousedown|pointerdown/.test(type) && evt.button !== 0 || options.disabled) {
+      return; // only left button and enabled
+    }
+
+    // cancel dnd if original target is content editable
+    if (originalTarget.isContentEditable) {
+      return;
+    }
+
+    // Safari ignores further event handling after mousedown
+    if (!this.nativeDraggable && Safari && target && target.tagName.toUpperCase() === 'SELECT') {
+      return;
+    }
+    target = closest(target, options.draggable, el, false);
+    if (target && target.animated) {
+      return;
+    }
+    if (lastDownEl === target) {
+      // Ignoring duplicate `down`
+      return;
+    }
+
+    // Get the index of the dragged element within its parent
+    oldIndex = index(target);
+    oldDraggableIndex = index(target, options.draggable);
+
+    // Check filter
+    if (typeof filter === 'function') {
+      if (filter.call(this, evt, target, this)) {
+        _dispatchEvent({
+          sortable: _this,
+          rootEl: originalTarget,
+          name: 'filter',
+          targetEl: target,
+          toEl: el,
+          fromEl: el
+        });
+        pluginEvent('filter', _this, {
+          evt: evt
+        });
+        preventOnFilter && evt.cancelable && evt.preventDefault();
+        return; // cancel dnd
+      }
+    } else if (filter) {
+      filter = filter.split(',').some(function (criteria) {
+        criteria = closest(originalTarget, criteria.trim(), el, false);
+        if (criteria) {
+          _dispatchEvent({
+            sortable: _this,
+            rootEl: criteria,
+            name: 'filter',
+            targetEl: target,
+            fromEl: el,
+            toEl: el
+          });
+          pluginEvent('filter', _this, {
+            evt: evt
+          });
+          return true;
+        }
+      });
+      if (filter) {
+        preventOnFilter && evt.cancelable && evt.preventDefault();
+        return; // cancel dnd
+      }
+    }
+    if (options.handle && !closest(originalTarget, options.handle, el, false)) {
+      return;
+    }
+
+    // Prepare `dragstart`
+    this._prepareDragStart(evt, touch, target);
+  },
+  _prepareDragStart: function _prepareDragStart( /** Event */evt, /** Touch */touch, /** HTMLElement */target) {
+    var _this = this,
+      el = _this.el,
+      options = _this.options,
+      ownerDocument = el.ownerDocument,
+      dragStartFn;
+    if (target && !dragEl && target.parentNode === el) {
+      var dragRect = getRect(target);
+      rootEl = el;
+      dragEl = target;
+      parentEl = dragEl.parentNode;
+      nextEl = dragEl.nextSibling;
+      lastDownEl = target;
+      activeGroup = options.group;
+      Sortable.dragged = dragEl;
+      tapEvt = {
+        target: dragEl,
+        clientX: (touch || evt).clientX,
+        clientY: (touch || evt).clientY
+      };
+      tapDistanceLeft = tapEvt.clientX - dragRect.left;
+      tapDistanceTop = tapEvt.clientY - dragRect.top;
+      this._lastX = (touch || evt).clientX;
+      this._lastY = (touch || evt).clientY;
+      dragEl.style['will-change'] = 'all';
+      dragStartFn = function dragStartFn() {
+        pluginEvent('delayEnded', _this, {
+          evt: evt
+        });
+        if (Sortable.eventCanceled) {
+          _this._onDrop();
+          return;
+        }
+        // Delayed drag has been triggered
+        // we can re-enable the events: touchmove/mousemove
+        _this._disableDelayedDragEvents();
+        if (!FireFox && _this.nativeDraggable) {
+          dragEl.draggable = true;
+        }
+
+        // Bind the events: dragstart/dragend
+        _this._triggerDragStart(evt, touch);
+
+        // Drag start event
+        _dispatchEvent({
+          sortable: _this,
+          name: 'choose',
+          originalEvent: evt
+        });
+
+        // Chosen item
+        toggleClass(dragEl, options.chosenClass, true);
+      };
+
+      // Disable "draggable"
+      options.ignore.split(',').forEach(function (criteria) {
+        find(dragEl, criteria.trim(), _disableDraggable);
+      });
+      on(ownerDocument, 'dragover', nearestEmptyInsertDetectEvent);
+      on(ownerDocument, 'mousemove', nearestEmptyInsertDetectEvent);
+      on(ownerDocument, 'touchmove', nearestEmptyInsertDetectEvent);
+      on(ownerDocument, 'mouseup', _this._onDrop);
+      on(ownerDocument, 'touchend', _this._onDrop);
+      on(ownerDocument, 'touchcancel', _this._onDrop);
+
+      // Make dragEl draggable (must be before delay for FireFox)
+      if (FireFox && this.nativeDraggable) {
+        this.options.touchStartThreshold = 4;
+        dragEl.draggable = true;
+      }
+      pluginEvent('delayStart', this, {
+        evt: evt
+      });
+
+      // Delay is impossible for native DnD in Edge or IE
+      if (options.delay && (!options.delayOnTouchOnly || touch) && (!this.nativeDraggable || !(Edge || IE11OrLess))) {
+        if (Sortable.eventCanceled) {
+          this._onDrop();
+          return;
+        }
+        // If the user moves the pointer or let go the click or touch
+        // before the delay has been reached:
+        // disable the delayed drag
+        on(ownerDocument, 'mouseup', _this._disableDelayedDrag);
+        on(ownerDocument, 'touchend', _this._disableDelayedDrag);
+        on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
+        on(ownerDocument, 'mousemove', _this._delayedDragTouchMoveHandler);
+        on(ownerDocument, 'touchmove', _this._delayedDragTouchMoveHandler);
+        options.supportPointer && on(ownerDocument, 'pointermove', _this._delayedDragTouchMoveHandler);
+        _this._dragStartTimer = setTimeout(dragStartFn, options.delay);
+      } else {
+        dragStartFn();
+      }
+    }
+  },
+  _delayedDragTouchMoveHandler: function _delayedDragTouchMoveHandler( /** TouchEvent|PointerEvent **/e) {
+    var touch = e.touches ? e.touches[0] : e;
+    if (Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY)) >= Math.floor(this.options.touchStartThreshold / (this.nativeDraggable && window.devicePixelRatio || 1))) {
+      this._disableDelayedDrag();
+    }
+  },
+  _disableDelayedDrag: function _disableDelayedDrag() {
+    dragEl && _disableDraggable(dragEl);
+    clearTimeout(this._dragStartTimer);
+    this._disableDelayedDragEvents();
+  },
+  _disableDelayedDragEvents: function _disableDelayedDragEvents() {
+    var ownerDocument = this.el.ownerDocument;
+    off(ownerDocument, 'mouseup', this._disableDelayedDrag);
+    off(ownerDocument, 'touchend', this._disableDelayedDrag);
+    off(ownerDocument, 'touchcancel', this._disableDelayedDrag);
+    off(ownerDocument, 'mousemove', this._delayedDragTouchMoveHandler);
+    off(ownerDocument, 'touchmove', this._delayedDragTouchMoveHandler);
+    off(ownerDocument, 'pointermove', this._delayedDragTouchMoveHandler);
+  },
+  _triggerDragStart: function _triggerDragStart( /** Event */evt, /** Touch */touch) {
+    touch = touch || evt.pointerType == 'touch' && evt;
+    if (!this.nativeDraggable || touch) {
+      if (this.options.supportPointer) {
+        on(document, 'pointermove', this._onTouchMove);
+      } else if (touch) {
+        on(document, 'touchmove', this._onTouchMove);
+      } else {
+        on(document, 'mousemove', this._onTouchMove);
+      }
+    } else {
+      on(dragEl, 'dragend', this);
+      on(rootEl, 'dragstart', this._onDragStart);
+    }
+    try {
+      if (document.selection) {
+        // Timeout neccessary for IE9
+        _nextTick(function () {
+          document.selection.empty();
+        });
+      } else {
+        window.getSelection().removeAllRanges();
+      }
+    } catch (err) {}
+  },
+  _dragStarted: function _dragStarted(fallback, evt) {
+    awaitingDragStarted = false;
+    if (rootEl && dragEl) {
+      pluginEvent('dragStarted', this, {
+        evt: evt
+      });
+      if (this.nativeDraggable) {
+        on(document, 'dragover', _checkOutsideTargetEl);
+      }
+      var options = this.options;
+
+      // Apply effect
+      !fallback && toggleClass(dragEl, options.dragClass, false);
+      toggleClass(dragEl, options.ghostClass, true);
+      Sortable.active = this;
+      fallback && this._appendGhost();
+
+      // Drag start event
+      _dispatchEvent({
+        sortable: this,
+        name: 'start',
+        originalEvent: evt
+      });
+    } else {
+      this._nulling();
+    }
+  },
+  _emulateDragOver: function _emulateDragOver() {
+    if (touchEvt) {
+      this._lastX = touchEvt.clientX;
+      this._lastY = touchEvt.clientY;
+      _hideGhostForTarget();
+      var target = document.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
+      var parent = target;
+      while (target && target.shadowRoot) {
+        target = target.shadowRoot.elementFromPoint(touchEvt.clientX, touchEvt.clientY);
+        if (target === parent) break;
+        parent = target;
+      }
+      dragEl.parentNode[expando]._isOutsideThisEl(target);
+      if (parent) {
+        do {
+          if (parent[expando]) {
+            var inserted = void 0;
+            inserted = parent[expando]._onDragOver({
+              clientX: touchEvt.clientX,
+              clientY: touchEvt.clientY,
+              target: target,
+              rootEl: parent
+            });
+            if (inserted && !this.options.dragoverBubble) {
+              break;
+            }
+          }
+          target = parent; // store last element
+        }
+        /* jshint boss:true */ while (parent = parent.parentNode);
+      }
+      _unhideGhostForTarget();
+    }
+  },
+  _onTouchMove: function _onTouchMove( /**TouchEvent*/evt) {
+    if (tapEvt) {
+      var options = this.options,
+        fallbackTolerance = options.fallbackTolerance,
+        fallbackOffset = options.fallbackOffset,
+        touch = evt.touches ? evt.touches[0] : evt,
+        ghostMatrix = ghostEl && matrix(ghostEl, true),
+        scaleX = ghostEl && ghostMatrix && ghostMatrix.a,
+        scaleY = ghostEl && ghostMatrix && ghostMatrix.d,
+        relativeScrollOffset = PositionGhostAbsolutely && ghostRelativeParent && getRelativeScrollOffset(ghostRelativeParent),
+        dx = (touch.clientX - tapEvt.clientX + fallbackOffset.x) / (scaleX || 1) + (relativeScrollOffset ? relativeScrollOffset[0] - ghostRelativeParentInitialScroll[0] : 0) / (scaleX || 1),
+        dy = (touch.clientY - tapEvt.clientY + fallbackOffset.y) / (scaleY || 1) + (relativeScrollOffset ? relativeScrollOffset[1] - ghostRelativeParentInitialScroll[1] : 0) / (scaleY || 1);
+
+      // only set the status to dragging, when we are actually dragging
+      if (!Sortable.active && !awaitingDragStarted) {
+        if (fallbackTolerance && Math.max(Math.abs(touch.clientX - this._lastX), Math.abs(touch.clientY - this._lastY)) < fallbackTolerance) {
+          return;
+        }
+        this._onDragStart(evt, true);
+      }
+      if (ghostEl) {
+        if (ghostMatrix) {
+          ghostMatrix.e += dx - (lastDx || 0);
+          ghostMatrix.f += dy - (lastDy || 0);
+        } else {
+          ghostMatrix = {
+            a: 1,
+            b: 0,
+            c: 0,
+            d: 1,
+            e: dx,
+            f: dy
+          };
+        }
+        var cssMatrix = "matrix(".concat(ghostMatrix.a, ",").concat(ghostMatrix.b, ",").concat(ghostMatrix.c, ",").concat(ghostMatrix.d, ",").concat(ghostMatrix.e, ",").concat(ghostMatrix.f, ")");
+        css(ghostEl, 'webkitTransform', cssMatrix);
+        css(ghostEl, 'mozTransform', cssMatrix);
+        css(ghostEl, 'msTransform', cssMatrix);
+        css(ghostEl, 'transform', cssMatrix);
+        lastDx = dx;
+        lastDy = dy;
+        touchEvt = touch;
+      }
+      evt.cancelable && evt.preventDefault();
+    }
+  },
+  _appendGhost: function _appendGhost() {
+    // Bug if using scale(): https://stackoverflow.com/questions/2637058
+    // Not being adjusted for
+    if (!ghostEl) {
+      var container = this.options.fallbackOnBody ? document.body : rootEl,
+        rect = getRect(dragEl, true, PositionGhostAbsolutely, true, container),
+        options = this.options;
+
+      // Position absolutely
+      if (PositionGhostAbsolutely) {
+        // Get relatively positioned parent
+        ghostRelativeParent = container;
+        while (css(ghostRelativeParent, 'position') === 'static' && css(ghostRelativeParent, 'transform') === 'none' && ghostRelativeParent !== document) {
+          ghostRelativeParent = ghostRelativeParent.parentNode;
+        }
+        if (ghostRelativeParent !== document.body && ghostRelativeParent !== document.documentElement) {
+          if (ghostRelativeParent === document) ghostRelativeParent = getWindowScrollingElement();
+          rect.top += ghostRelativeParent.scrollTop;
+          rect.left += ghostRelativeParent.scrollLeft;
+        } else {
+          ghostRelativeParent = getWindowScrollingElement();
+        }
+        ghostRelativeParentInitialScroll = getRelativeScrollOffset(ghostRelativeParent);
+      }
+      ghostEl = dragEl.cloneNode(true);
+      toggleClass(ghostEl, options.ghostClass, false);
+      toggleClass(ghostEl, options.fallbackClass, true);
+      toggleClass(ghostEl, options.dragClass, true);
+      css(ghostEl, 'transition', '');
+      css(ghostEl, 'transform', '');
+      css(ghostEl, 'box-sizing', 'border-box');
+      css(ghostEl, 'margin', 0);
+      css(ghostEl, 'top', rect.top);
+      css(ghostEl, 'left', rect.left);
+      css(ghostEl, 'width', rect.width);
+      css(ghostEl, 'height', rect.height);
+      css(ghostEl, 'opacity', '0.8');
+      css(ghostEl, 'position', PositionGhostAbsolutely ? 'absolute' : 'fixed');
+      css(ghostEl, 'zIndex', '100000');
+      css(ghostEl, 'pointerEvents', 'none');
+      Sortable.ghost = ghostEl;
+      container.appendChild(ghostEl);
+
+      // Set transform-origin
+      css(ghostEl, 'transform-origin', tapDistanceLeft / parseInt(ghostEl.style.width) * 100 + '% ' + tapDistanceTop / parseInt(ghostEl.style.height) * 100 + '%');
+    }
+  },
+  _onDragStart: function _onDragStart( /**Event*/evt, /**boolean*/fallback) {
+    var _this = this;
+    var dataTransfer = evt.dataTransfer;
+    var options = _this.options;
+    pluginEvent('dragStart', this, {
+      evt: evt
+    });
+    if (Sortable.eventCanceled) {
+      this._onDrop();
+      return;
+    }
+    pluginEvent('setupClone', this);
+    if (!Sortable.eventCanceled) {
+      cloneEl = clone(dragEl);
+      cloneEl.removeAttribute("id");
+      cloneEl.draggable = false;
+      cloneEl.style['will-change'] = '';
+      this._hideClone();
+      toggleClass(cloneEl, this.options.chosenClass, false);
+      Sortable.clone = cloneEl;
+    }
+
+    // #1143: IFrame support workaround
+    _this.cloneId = _nextTick(function () {
+      pluginEvent('clone', _this);
+      if (Sortable.eventCanceled) return;
+      if (!_this.options.removeCloneOnHide) {
+        rootEl.insertBefore(cloneEl, dragEl);
+      }
+      _this._hideClone();
+      _dispatchEvent({
+        sortable: _this,
+        name: 'clone'
+      });
+    });
+    !fallback && toggleClass(dragEl, options.dragClass, true);
+
+    // Set proper drop events
+    if (fallback) {
+      ignoreNextClick = true;
+      _this._loopId = setInterval(_this._emulateDragOver, 50);
+    } else {
+      // Undo what was set in _prepareDragStart before drag started
+      off(document, 'mouseup', _this._onDrop);
+      off(document, 'touchend', _this._onDrop);
+      off(document, 'touchcancel', _this._onDrop);
+      if (dataTransfer) {
+        dataTransfer.effectAllowed = 'move';
+        options.setData && options.setData.call(_this, dataTransfer, dragEl);
+      }
+      on(document, 'drop', _this);
+
+      // #1276 fix:
+      css(dragEl, 'transform', 'translateZ(0)');
+    }
+    awaitingDragStarted = true;
+    _this._dragStartId = _nextTick(_this._dragStarted.bind(_this, fallback, evt));
+    on(document, 'selectstart', _this);
+    moved = true;
+    if (Safari) {
+      css(document.body, 'user-select', 'none');
+    }
+  },
+  // Returns true - if no further action is needed (either inserted or another condition)
+  _onDragOver: function _onDragOver( /**Event*/evt) {
+    var el = this.el,
+      target = evt.target,
+      dragRect,
+      targetRect,
+      revert,
+      options = this.options,
+      group = options.group,
+      activeSortable = Sortable.active,
+      isOwner = activeGroup === group,
+      canSort = options.sort,
+      fromSortable = putSortable || activeSortable,
+      vertical,
+      _this = this,
+      completedFired = false;
+    if (_silent) return;
+    function dragOverEvent(name, extra) {
+      pluginEvent(name, _this, _objectSpread2({
+        evt: evt,
+        isOwner: isOwner,
+        axis: vertical ? 'vertical' : 'horizontal',
+        revert: revert,
+        dragRect: dragRect,
+        targetRect: targetRect,
+        canSort: canSort,
+        fromSortable: fromSortable,
+        target: target,
+        completed: completed,
+        onMove: function onMove(target, after) {
+          return _onMove(rootEl, el, dragEl, dragRect, target, getRect(target), evt, after);
+        },
+        changed: changed
+      }, extra));
+    }
+
+    // Capture animation state
+    function capture() {
+      dragOverEvent('dragOverAnimationCapture');
+      _this.captureAnimationState();
+      if (_this !== fromSortable) {
+        fromSortable.captureAnimationState();
+      }
+    }
+
+    // Return invocation when dragEl is inserted (or completed)
+    function completed(insertion) {
+      dragOverEvent('dragOverCompleted', {
+        insertion: insertion
+      });
+      if (insertion) {
+        // Clones must be hidden before folding animation to capture dragRectAbsolute properly
+        if (isOwner) {
+          activeSortable._hideClone();
+        } else {
+          activeSortable._showClone(_this);
+        }
+        if (_this !== fromSortable) {
+          // Set ghost class to new sortable's ghost class
+          toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : activeSortable.options.ghostClass, false);
+          toggleClass(dragEl, options.ghostClass, true);
+        }
+        if (putSortable !== _this && _this !== Sortable.active) {
+          putSortable = _this;
+        } else if (_this === Sortable.active && putSortable) {
+          putSortable = null;
+        }
+
+        // Animation
+        if (fromSortable === _this) {
+          _this._ignoreWhileAnimating = target;
+        }
+        _this.animateAll(function () {
+          dragOverEvent('dragOverAnimationComplete');
+          _this._ignoreWhileAnimating = null;
+        });
+        if (_this !== fromSortable) {
+          fromSortable.animateAll();
+          fromSortable._ignoreWhileAnimating = null;
+        }
+      }
+
+      // Null lastTarget if it is not inside a previously swapped element
+      if (target === dragEl && !dragEl.animated || target === el && !target.animated) {
+        lastTarget = null;
+      }
+
+      // no bubbling and not fallback
+      if (!options.dragoverBubble && !evt.rootEl && target !== document) {
+        dragEl.parentNode[expando]._isOutsideThisEl(evt.target);
+
+        // Do not detect for empty insert if already inserted
+        !insertion && nearestEmptyInsertDetectEvent(evt);
+      }
+      !options.dragoverBubble && evt.stopPropagation && evt.stopPropagation();
+      return completedFired = true;
+    }
+
+    // Call when dragEl has been inserted
+    function changed() {
+      newIndex = index(dragEl);
+      newDraggableIndex = index(dragEl, options.draggable);
+      _dispatchEvent({
+        sortable: _this,
+        name: 'change',
+        toEl: el,
+        newIndex: newIndex,
+        newDraggableIndex: newDraggableIndex,
+        originalEvent: evt
+      });
+    }
+    if (evt.preventDefault !== void 0) {
+      evt.cancelable && evt.preventDefault();
+    }
+    target = closest(target, options.draggable, el, true);
+    dragOverEvent('dragOver');
+    if (Sortable.eventCanceled) return completedFired;
+    if (dragEl.contains(evt.target) || target.animated && target.animatingX && target.animatingY || _this._ignoreWhileAnimating === target) {
+      return completed(false);
+    }
+    ignoreNextClick = false;
+    if (activeSortable && !options.disabled && (isOwner ? canSort || (revert = parentEl !== rootEl) // Reverting item into the original list
+    : putSortable === this || (this.lastPutMode = activeGroup.checkPull(this, activeSortable, dragEl, evt)) && group.checkPut(this, activeSortable, dragEl, evt))) {
+      vertical = this._getDirection(evt, target) === 'vertical';
+      dragRect = getRect(dragEl);
+      dragOverEvent('dragOverValid');
+      if (Sortable.eventCanceled) return completedFired;
+      if (revert) {
+        parentEl = rootEl; // actualization
+        capture();
+        this._hideClone();
+        dragOverEvent('revert');
+        if (!Sortable.eventCanceled) {
+          if (nextEl) {
+            rootEl.insertBefore(dragEl, nextEl);
+          } else {
+            rootEl.appendChild(dragEl);
+          }
+        }
+        return completed(true);
+      }
+      var elLastChild = lastChild(el, options.draggable);
+      if (!elLastChild || _ghostIsLast(evt, vertical, this) && !elLastChild.animated) {
+        // Insert to end of list
+
+        // If already at end of list: Do not insert
+        if (elLastChild === dragEl) {
+          return completed(false);
+        }
+
+        // if there is a last element, it is the target
+        if (elLastChild && el === evt.target) {
+          target = elLastChild;
+        }
+        if (target) {
+          targetRect = getRect(target);
+        }
+        if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, !!target) !== false) {
+          capture();
+          if (elLastChild && elLastChild.nextSibling) {
+            // the last draggable element is not the last node
+            el.insertBefore(dragEl, elLastChild.nextSibling);
+          } else {
+            el.appendChild(dragEl);
+          }
+          parentEl = el; // actualization
+
+          changed();
+          return completed(true);
+        }
+      } else if (elLastChild && _ghostIsFirst(evt, vertical, this)) {
+        // Insert to start of list
+        var firstChild = getChild(el, 0, options, true);
+        if (firstChild === dragEl) {
+          return completed(false);
+        }
+        target = firstChild;
+        targetRect = getRect(target);
+        if (_onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, false) !== false) {
+          capture();
+          el.insertBefore(dragEl, firstChild);
+          parentEl = el; // actualization
+
+          changed();
+          return completed(true);
+        }
+      } else if (target.parentNode === el) {
+        targetRect = getRect(target);
+        var direction = 0,
+          targetBeforeFirstSwap,
+          differentLevel = dragEl.parentNode !== el,
+          differentRowCol = !_dragElInRowColumn(dragEl.animated && dragEl.toRect || dragRect, target.animated && target.toRect || targetRect, vertical),
+          side1 = vertical ? 'top' : 'left',
+          scrolledPastTop = isScrolledPast(target, 'top', 'top') || isScrolledPast(dragEl, 'top', 'top'),
+          scrollBefore = scrolledPastTop ? scrolledPastTop.scrollTop : void 0;
+        if (lastTarget !== target) {
+          targetBeforeFirstSwap = targetRect[side1];
+          pastFirstInvertThresh = false;
+          isCircumstantialInvert = !differentRowCol && options.invertSwap || differentLevel;
+        }
+        direction = _getSwapDirection(evt, target, targetRect, vertical, differentRowCol ? 1 : options.swapThreshold, options.invertedSwapThreshold == null ? options.swapThreshold : options.invertedSwapThreshold, isCircumstantialInvert, lastTarget === target);
+        var sibling;
+        if (direction !== 0) {
+          // Check if target is beside dragEl in respective direction (ignoring hidden elements)
+          var dragIndex = index(dragEl);
+          do {
+            dragIndex -= direction;
+            sibling = parentEl.children[dragIndex];
+          } while (sibling && (css(sibling, 'display') === 'none' || sibling === ghostEl));
+        }
+        // If dragEl is already beside target: Do not insert
+        if (direction === 0 || sibling === target) {
+          return completed(false);
+        }
+        lastTarget = target;
+        lastDirection = direction;
+        var nextSibling = target.nextElementSibling,
+          after = false;
+        after = direction === 1;
+        var moveVector = _onMove(rootEl, el, dragEl, dragRect, target, targetRect, evt, after);
+        if (moveVector !== false) {
+          if (moveVector === 1 || moveVector === -1) {
+            after = moveVector === 1;
+          }
+          _silent = true;
+          setTimeout(_unsilent, 30);
+          capture();
+          if (after && !nextSibling) {
+            el.appendChild(dragEl);
+          } else {
+            target.parentNode.insertBefore(dragEl, after ? nextSibling : target);
+          }
+
+          // Undo chrome's scroll adjustment (has no effect on other browsers)
+          if (scrolledPastTop) {
+            scrollBy(scrolledPastTop, 0, scrollBefore - scrolledPastTop.scrollTop);
+          }
+          parentEl = dragEl.parentNode; // actualization
+
+          // must be done before animation
+          if (targetBeforeFirstSwap !== undefined && !isCircumstantialInvert) {
+            targetMoveDistance = Math.abs(targetBeforeFirstSwap - getRect(target)[side1]);
+          }
+          changed();
+          return completed(true);
+        }
+      }
+      if (el.contains(dragEl)) {
+        return completed(false);
+      }
+    }
+    return false;
+  },
+  _ignoreWhileAnimating: null,
+  _offMoveEvents: function _offMoveEvents() {
+    off(document, 'mousemove', this._onTouchMove);
+    off(document, 'touchmove', this._onTouchMove);
+    off(document, 'pointermove', this._onTouchMove);
+    off(document, 'dragover', nearestEmptyInsertDetectEvent);
+    off(document, 'mousemove', nearestEmptyInsertDetectEvent);
+    off(document, 'touchmove', nearestEmptyInsertDetectEvent);
+  },
+  _offUpEvents: function _offUpEvents() {
+    var ownerDocument = this.el.ownerDocument;
+    off(ownerDocument, 'mouseup', this._onDrop);
+    off(ownerDocument, 'touchend', this._onDrop);
+    off(ownerDocument, 'pointerup', this._onDrop);
+    off(ownerDocument, 'touchcancel', this._onDrop);
+    off(document, 'selectstart', this);
+  },
+  _onDrop: function _onDrop( /**Event*/evt) {
+    var el = this.el,
+      options = this.options;
+
+    // Get the index of the dragged element within its parent
+    newIndex = index(dragEl);
+    newDraggableIndex = index(dragEl, options.draggable);
+    pluginEvent('drop', this, {
+      evt: evt
+    });
+    parentEl = dragEl && dragEl.parentNode;
+
+    // Get again after plugin event
+    newIndex = index(dragEl);
+    newDraggableIndex = index(dragEl, options.draggable);
+    if (Sortable.eventCanceled) {
+      this._nulling();
+      return;
+    }
+    awaitingDragStarted = false;
+    isCircumstantialInvert = false;
+    pastFirstInvertThresh = false;
+    clearInterval(this._loopId);
+    clearTimeout(this._dragStartTimer);
+    _cancelNextTick(this.cloneId);
+    _cancelNextTick(this._dragStartId);
+
+    // Unbind events
+    if (this.nativeDraggable) {
+      off(document, 'drop', this);
+      off(el, 'dragstart', this._onDragStart);
+    }
+    this._offMoveEvents();
+    this._offUpEvents();
+    if (Safari) {
+      css(document.body, 'user-select', '');
+    }
+    css(dragEl, 'transform', '');
+    if (evt) {
+      if (moved) {
+        evt.cancelable && evt.preventDefault();
+        !options.dropBubble && evt.stopPropagation();
+      }
+      ghostEl && ghostEl.parentNode && ghostEl.parentNode.removeChild(ghostEl);
+      if (rootEl === parentEl || putSortable && putSortable.lastPutMode !== 'clone') {
+        // Remove clone(s)
+        cloneEl && cloneEl.parentNode && cloneEl.parentNode.removeChild(cloneEl);
+      }
+      if (dragEl) {
+        if (this.nativeDraggable) {
+          off(dragEl, 'dragend', this);
+        }
+        _disableDraggable(dragEl);
+        dragEl.style['will-change'] = '';
+
+        // Remove classes
+        // ghostClass is added in dragStarted
+        if (moved && !awaitingDragStarted) {
+          toggleClass(dragEl, putSortable ? putSortable.options.ghostClass : this.options.ghostClass, false);
+        }
+        toggleClass(dragEl, this.options.chosenClass, false);
+
+        // Drag stop event
+        _dispatchEvent({
+          sortable: this,
+          name: 'unchoose',
+          toEl: parentEl,
+          newIndex: null,
+          newDraggableIndex: null,
+          originalEvent: evt
+        });
+        if (rootEl !== parentEl) {
+          if (newIndex >= 0) {
+            // Add event
+            _dispatchEvent({
+              rootEl: parentEl,
+              name: 'add',
+              toEl: parentEl,
+              fromEl: rootEl,
+              originalEvent: evt
+            });
+
+            // Remove event
+            _dispatchEvent({
+              sortable: this,
+              name: 'remove',
+              toEl: parentEl,
+              originalEvent: evt
+            });
+
+            // drag from one list and drop into another
+            _dispatchEvent({
+              rootEl: parentEl,
+              name: 'sort',
+              toEl: parentEl,
+              fromEl: rootEl,
+              originalEvent: evt
+            });
+            _dispatchEvent({
+              sortable: this,
+              name: 'sort',
+              toEl: parentEl,
+              originalEvent: evt
+            });
+          }
+          putSortable && putSortable.save();
+        } else {
+          if (newIndex !== oldIndex) {
+            if (newIndex >= 0) {
+              // drag & drop within the same list
+              _dispatchEvent({
+                sortable: this,
+                name: 'update',
+                toEl: parentEl,
+                originalEvent: evt
+              });
+              _dispatchEvent({
+                sortable: this,
+                name: 'sort',
+                toEl: parentEl,
+                originalEvent: evt
+              });
+            }
+          }
+        }
+        if (Sortable.active) {
+          /* jshint eqnull:true */
+          if (newIndex == null || newIndex === -1) {
+            newIndex = oldIndex;
+            newDraggableIndex = oldDraggableIndex;
+          }
+          _dispatchEvent({
+            sortable: this,
+            name: 'end',
+            toEl: parentEl,
+            originalEvent: evt
+          });
+
+          // Save sorting
+          this.save();
+        }
+      }
+    }
+    this._nulling();
+  },
+  _nulling: function _nulling() {
+    pluginEvent('nulling', this);
+    rootEl = dragEl = parentEl = ghostEl = nextEl = cloneEl = lastDownEl = cloneHidden = tapEvt = touchEvt = moved = newIndex = newDraggableIndex = oldIndex = oldDraggableIndex = lastTarget = lastDirection = putSortable = activeGroup = Sortable.dragged = Sortable.ghost = Sortable.clone = Sortable.active = null;
+    savedInputChecked.forEach(function (el) {
+      el.checked = true;
+    });
+    savedInputChecked.length = lastDx = lastDy = 0;
+  },
+  handleEvent: function handleEvent( /**Event*/evt) {
+    switch (evt.type) {
+      case 'drop':
+      case 'dragend':
+        this._onDrop(evt);
+        break;
+      case 'dragenter':
+      case 'dragover':
+        if (dragEl) {
+          this._onDragOver(evt);
+          _globalDragOver(evt);
+        }
+        break;
+      case 'selectstart':
+        evt.preventDefault();
+        break;
+    }
+  },
+  /**
+   * Serializes the item into an array of string.
+   * @returns {String[]}
+   */
+  toArray: function toArray() {
+    var order = [],
+      el,
+      children = this.el.children,
+      i = 0,
+      n = children.length,
+      options = this.options;
+    for (; i < n; i++) {
+      el = children[i];
+      if (closest(el, options.draggable, this.el, false)) {
+        order.push(el.getAttribute(options.dataIdAttr) || _generateId(el));
+      }
+    }
+    return order;
+  },
+  /**
+   * Sorts the elements according to the array.
+   * @param  {String[]}  order  order of the items
+   */
+  sort: function sort(order, useAnimation) {
+    var items = {},
+      rootEl = this.el;
+    this.toArray().forEach(function (id, i) {
+      var el = rootEl.children[i];
+      if (closest(el, this.options.draggable, rootEl, false)) {
+        items[id] = el;
+      }
+    }, this);
+    useAnimation && this.captureAnimationState();
+    order.forEach(function (id) {
+      if (items[id]) {
+        rootEl.removeChild(items[id]);
+        rootEl.appendChild(items[id]);
+      }
+    });
+    useAnimation && this.animateAll();
+  },
+  /**
+   * Save the current sorting
+   */
+  save: function save() {
+    var store = this.options.store;
+    store && store.set && store.set(this);
+  },
+  /**
+   * For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
+   * @param   {HTMLElement}  el
+   * @param   {String}       [selector]  default: `options.draggable`
+   * @returns {HTMLElement|null}
+   */
+  closest: function closest$1(el, selector) {
+    return closest(el, selector || this.options.draggable, this.el, false);
+  },
+  /**
+   * Set/get option
+   * @param   {string} name
+   * @param   {*}      [value]
+   * @returns {*}
+   */
+  option: function option(name, value) {
+    var options = this.options;
+    if (value === void 0) {
+      return options[name];
+    } else {
+      var modifiedValue = PluginManager.modifyOption(this, name, value);
+      if (typeof modifiedValue !== 'undefined') {
+        options[name] = modifiedValue;
+      } else {
+        options[name] = value;
+      }
+      if (name === 'group') {
+        _prepareGroup(options);
+      }
+    }
+  },
+  /**
+   * Destroy
+   */
+  destroy: function destroy() {
+    pluginEvent('destroy', this);
+    var el = this.el;
+    el[expando] = null;
+    off(el, 'mousedown', this._onTapStart);
+    off(el, 'touchstart', this._onTapStart);
+    off(el, 'pointerdown', this._onTapStart);
+    if (this.nativeDraggable) {
+      off(el, 'dragover', this);
+      off(el, 'dragenter', this);
+    }
+    // Remove draggable attributes
+    Array.prototype.forEach.call(el.querySelectorAll('[draggable]'), function (el) {
+      el.removeAttribute('draggable');
+    });
+    this._onDrop();
+    this._disableDelayedDragEvents();
+    sortables.splice(sortables.indexOf(this.el), 1);
+    this.el = el = null;
+  },
+  _hideClone: function _hideClone() {
+    if (!cloneHidden) {
+      pluginEvent('hideClone', this);
+      if (Sortable.eventCanceled) return;
+      css(cloneEl, 'display', 'none');
+      if (this.options.removeCloneOnHide && cloneEl.parentNode) {
+        cloneEl.parentNode.removeChild(cloneEl);
+      }
+      cloneHidden = true;
+    }
+  },
+  _showClone: function _showClone(putSortable) {
+    if (putSortable.lastPutMode !== 'clone') {
+      this._hideClone();
+      return;
+    }
+    if (cloneHidden) {
+      pluginEvent('showClone', this);
+      if (Sortable.eventCanceled) return;
+
+      // show clone at dragEl or original position
+      if (dragEl.parentNode == rootEl && !this.options.group.revertClone) {
+        rootEl.insertBefore(cloneEl, dragEl);
+      } else if (nextEl) {
+        rootEl.insertBefore(cloneEl, nextEl);
+      } else {
+        rootEl.appendChild(cloneEl);
+      }
+      if (this.options.group.revertClone) {
+        this.animate(dragEl, cloneEl);
+      }
+      css(cloneEl, 'display', '');
+      cloneHidden = false;
+    }
+  }
+};
+function _globalDragOver( /**Event*/evt) {
+  if (evt.dataTransfer) {
+    evt.dataTransfer.dropEffect = 'move';
+  }
+  evt.cancelable && evt.preventDefault();
+}
+function _onMove(fromEl, toEl, dragEl, dragRect, targetEl, targetRect, originalEvent, willInsertAfter) {
+  var evt,
+    sortable = fromEl[expando],
+    onMoveFn = sortable.options.onMove,
+    retVal;
+  // Support for new CustomEvent feature
+  if (window.CustomEvent && !IE11OrLess && !Edge) {
+    evt = new CustomEvent('move', {
+      bubbles: true,
+      cancelable: true
+    });
+  } else {
+    evt = document.createEvent('Event');
+    evt.initEvent('move', true, true);
+  }
+  evt.to = toEl;
+  evt.from = fromEl;
+  evt.dragged = dragEl;
+  evt.draggedRect = dragRect;
+  evt.related = targetEl || toEl;
+  evt.relatedRect = targetRect || getRect(toEl);
+  evt.willInsertAfter = willInsertAfter;
+  evt.originalEvent = originalEvent;
+  fromEl.dispatchEvent(evt);
+  if (onMoveFn) {
+    retVal = onMoveFn.call(sortable, evt, originalEvent);
+  }
+  return retVal;
+}
+function _disableDraggable(el) {
+  el.draggable = false;
+}
+function _unsilent() {
+  _silent = false;
+}
+function _ghostIsFirst(evt, vertical, sortable) {
+  var firstElRect = getRect(getChild(sortable.el, 0, sortable.options, true));
+  var childContainingRect = getChildContainingRectFromElement(sortable.el, sortable.options, ghostEl);
+  var spacer = 10;
+  return vertical ? evt.clientX < childContainingRect.left - spacer || evt.clientY < firstElRect.top && evt.clientX < firstElRect.right : evt.clientY < childContainingRect.top - spacer || evt.clientY < firstElRect.bottom && evt.clientX < firstElRect.left;
+}
+function _ghostIsLast(evt, vertical, sortable) {
+  var lastElRect = getRect(lastChild(sortable.el, sortable.options.draggable));
+  var childContainingRect = getChildContainingRectFromElement(sortable.el, sortable.options, ghostEl);
+  var spacer = 10;
+  return vertical ? evt.clientX > childContainingRect.right + spacer || evt.clientY > lastElRect.bottom && evt.clientX > lastElRect.left : evt.clientY > childContainingRect.bottom + spacer || evt.clientX > lastElRect.right && evt.clientY > lastElRect.top;
+}
+function _getSwapDirection(evt, target, targetRect, vertical, swapThreshold, invertedSwapThreshold, invertSwap, isLastTarget) {
+  var mouseOnAxis = vertical ? evt.clientY : evt.clientX,
+    targetLength = vertical ? targetRect.height : targetRect.width,
+    targetS1 = vertical ? targetRect.top : targetRect.left,
+    targetS2 = vertical ? targetRect.bottom : targetRect.right,
+    invert = false;
+  if (!invertSwap) {
+    // Never invert or create dragEl shadow when target movemenet causes mouse to move past the end of regular swapThreshold
+    if (isLastTarget && targetMoveDistance < targetLength * swapThreshold) {
+      // multiplied only by swapThreshold because mouse will already be inside target by (1 - threshold) * targetLength / 2
+      // check if past first invert threshold on side opposite of lastDirection
+      if (!pastFirstInvertThresh && (lastDirection === 1 ? mouseOnAxis > targetS1 + targetLength * invertedSwapThreshold / 2 : mouseOnAxis < targetS2 - targetLength * invertedSwapThreshold / 2)) {
+        // past first invert threshold, do not restrict inverted threshold to dragEl shadow
+        pastFirstInvertThresh = true;
+      }
+      if (!pastFirstInvertThresh) {
+        // dragEl shadow (target move distance shadow)
+        if (lastDirection === 1 ? mouseOnAxis < targetS1 + targetMoveDistance // over dragEl shadow
+        : mouseOnAxis > targetS2 - targetMoveDistance) {
+          return -lastDirection;
+        }
+      } else {
+        invert = true;
+      }
+    } else {
+      // Regular
+      if (mouseOnAxis > targetS1 + targetLength * (1 - swapThreshold) / 2 && mouseOnAxis < targetS2 - targetLength * (1 - swapThreshold) / 2) {
+        return _getInsertDirection(target);
+      }
+    }
+  }
+  invert = invert || invertSwap;
+  if (invert) {
+    // Invert of regular
+    if (mouseOnAxis < targetS1 + targetLength * invertedSwapThreshold / 2 || mouseOnAxis > targetS2 - targetLength * invertedSwapThreshold / 2) {
+      return mouseOnAxis > targetS1 + targetLength / 2 ? 1 : -1;
+    }
+  }
+  return 0;
+}
+
+/**
+ * Gets the direction dragEl must be swapped relative to target in order to make it
+ * seem that dragEl has been "inserted" into that element's position
+ * @param  {HTMLElement} target       The target whose position dragEl is being inserted at
+ * @return {Number}                   Direction dragEl must be swapped
+ */
+function _getInsertDirection(target) {
+  if (index(dragEl) < index(target)) {
+    return 1;
+  } else {
+    return -1;
+  }
+}
+
+/**
+ * Generate id
+ * @param   {HTMLElement} el
+ * @returns {String}
+ * @private
+ */
+function _generateId(el) {
+  var str = el.tagName + el.className + el.src + el.href + el.textContent,
+    i = str.length,
+    sum = 0;
+  while (i--) {
+    sum += str.charCodeAt(i);
+  }
+  return sum.toString(36);
+}
+function _saveInputCheckedState(root) {
+  savedInputChecked.length = 0;
+  var inputs = root.getElementsByTagName('input');
+  var idx = inputs.length;
+  while (idx--) {
+    var el = inputs[idx];
+    el.checked && savedInputChecked.push(el);
+  }
+}
+function _nextTick(fn) {
+  return setTimeout(fn, 0);
+}
+function _cancelNextTick(id) {
+  return clearTimeout(id);
+}
+
+// Fixed #973:
+if (documentExists) {
+  on(document, 'touchmove', function (evt) {
+    if ((Sortable.active || awaitingDragStarted) && evt.cancelable) {
+      evt.preventDefault();
+    }
+  });
+}
+
+// Export utils
+Sortable.utils = {
+  on: on,
+  off: off,
+  css: css,
+  find: find,
+  is: function is(el, selector) {
+    return !!closest(el, selector, el, false);
+  },
+  extend: extend,
+  throttle: throttle,
+  closest: closest,
+  toggleClass: toggleClass,
+  clone: clone,
+  index: index,
+  nextTick: _nextTick,
+  cancelNextTick: _cancelNextTick,
+  detectDirection: _detectDirection,
+  getChild: getChild
+};
+
+/**
+ * Get the Sortable instance of an element
+ * @param  {HTMLElement} element The element
+ * @return {Sortable|undefined}         The instance of Sortable
+ */
+Sortable.get = function (element) {
+  return element[expando];
+};
+
+/**
+ * Mount a plugin to Sortable
+ * @param  {...SortablePlugin|SortablePlugin[]} plugins       Plugins being mounted
+ */
+Sortable.mount = function () {
+  for (var _len = arguments.length, plugins = new Array(_len), _key = 0; _key < _len; _key++) {
+    plugins[_key] = arguments[_key];
+  }
+  if (plugins[0].constructor === Array) plugins = plugins[0];
+  plugins.forEach(function (plugin) {
+    if (!plugin.prototype || !plugin.prototype.constructor) {
+      throw "Sortable: Mounted plugin must be a constructor function, not ".concat({}.toString.call(plugin));
+    }
+    if (plugin.utils) Sortable.utils = _objectSpread2(_objectSpread2({}, Sortable.utils), plugin.utils);
+    PluginManager.mount(plugin);
+  });
+};
+
+/**
+ * Create sortable instance
+ * @param {HTMLElement}  el
+ * @param {Object}      [options]
+ */
+Sortable.create = function (el, options) {
+  return new Sortable(el, options);
+};
+
+// Export
+Sortable.version = version;
+
+var autoScrolls = [],
+  scrollEl,
+  scrollRootEl,
+  scrolling = false,
+  lastAutoScrollX,
+  lastAutoScrollY,
+  touchEvt$1,
+  pointerElemChangedInterval;
+function AutoScrollPlugin() {
+  function AutoScroll() {
+    this.defaults = {
+      scroll: true,
+      forceAutoScrollFallback: false,
+      scrollSensitivity: 30,
+      scrollSpeed: 10,
+      bubbleScroll: true
+    };
+
+    // Bind all private methods
+    for (var fn in this) {
+      if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
+        this[fn] = this[fn].bind(this);
+      }
+    }
+  }
+  AutoScroll.prototype = {
+    dragStarted: function dragStarted(_ref) {
+      var originalEvent = _ref.originalEvent;
+      if (this.sortable.nativeDraggable) {
+        on(document, 'dragover', this._handleAutoScroll);
+      } else {
+        if (this.options.supportPointer) {
+          on(document, 'pointermove', this._handleFallbackAutoScroll);
+        } else if (originalEvent.touches) {
+          on(document, 'touchmove', this._handleFallbackAutoScroll);
+        } else {
+          on(document, 'mousemove', this._handleFallbackAutoScroll);
+        }
+      }
+    },
+    dragOverCompleted: function dragOverCompleted(_ref2) {
+      var originalEvent = _ref2.originalEvent;
+      // For when bubbling is canceled and using fallback (fallback 'touchmove' always reached)
+      if (!this.options.dragOverBubble && !originalEvent.rootEl) {
+        this._handleAutoScroll(originalEvent);
+      }
+    },
+    drop: function drop() {
+      if (this.sortable.nativeDraggable) {
+        off(document, 'dragover', this._handleAutoScroll);
+      } else {
+        off(document, 'pointermove', this._handleFallbackAutoScroll);
+        off(document, 'touchmove', this._handleFallbackAutoScroll);
+        off(document, 'mousemove', this._handleFallbackAutoScroll);
+      }
+      clearPointerElemChangedInterval();
+      clearAutoScrolls();
+      cancelThrottle();
+    },
+    nulling: function nulling() {
+      touchEvt$1 = scrollRootEl = scrollEl = scrolling = pointerElemChangedInterval = lastAutoScrollX = lastAutoScrollY = null;
+      autoScrolls.length = 0;
+    },
+    _handleFallbackAutoScroll: function _handleFallbackAutoScroll(evt) {
+      this._handleAutoScroll(evt, true);
+    },
+    _handleAutoScroll: function _handleAutoScroll(evt, fallback) {
+      var _this = this;
+      var x = (evt.touches ? evt.touches[0] : evt).clientX,
+        y = (evt.touches ? evt.touches[0] : evt).clientY,
+        elem = document.elementFromPoint(x, y);
+      touchEvt$1 = evt;
+
+      // IE does not seem to have native autoscroll,
+      // Edge's autoscroll seems too conditional,
+      // MACOS Safari does not have autoscroll,
+      // Firefox and Chrome are good
+      if (fallback || this.options.forceAutoScrollFallback || Edge || IE11OrLess || Safari) {
+        autoScroll(evt, this.options, elem, fallback);
+
+        // Listener for pointer element change
+        var ogElemScroller = getParentAutoScrollElement(elem, true);
+        if (scrolling && (!pointerElemChangedInterval || x !== lastAutoScrollX || y !== lastAutoScrollY)) {
+          pointerElemChangedInterval && clearPointerElemChangedInterval();
+          // Detect for pointer elem change, emulating native DnD behaviour
+          pointerElemChangedInterval = setInterval(function () {
+            var newElem = getParentAutoScrollElement(document.elementFromPoint(x, y), true);
+            if (newElem !== ogElemScroller) {
+              ogElemScroller = newElem;
+              clearAutoScrolls();
+            }
+            autoScroll(evt, _this.options, newElem, fallback);
+          }, 10);
+          lastAutoScrollX = x;
+          lastAutoScrollY = y;
+        }
+      } else {
+        // if DnD is enabled (and browser has good autoscrolling), first autoscroll will already scroll, so get parent autoscroll of first autoscroll
+        if (!this.options.bubbleScroll || getParentAutoScrollElement(elem, true) === getWindowScrollingElement()) {
+          clearAutoScrolls();
+          return;
+        }
+        autoScroll(evt, this.options, getParentAutoScrollElement(elem, false), false);
+      }
+    }
+  };
+  return _extends(AutoScroll, {
+    pluginName: 'scroll',
+    initializeByDefault: true
+  });
+}
+function clearAutoScrolls() {
+  autoScrolls.forEach(function (autoScroll) {
+    clearInterval(autoScroll.pid);
+  });
+  autoScrolls = [];
+}
+function clearPointerElemChangedInterval() {
+  clearInterval(pointerElemChangedInterval);
+}
+var autoScroll = throttle(function (evt, options, rootEl, isFallback) {
+  // Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=505521
+  if (!options.scroll) return;
+  var x = (evt.touches ? evt.touches[0] : evt).clientX,
+    y = (evt.touches ? evt.touches[0] : evt).clientY,
+    sens = options.scrollSensitivity,
+    speed = options.scrollSpeed,
+    winScroller = getWindowScrollingElement();
+  var scrollThisInstance = false,
+    scrollCustomFn;
+
+  // New scroll root, set scrollEl
+  if (scrollRootEl !== rootEl) {
+    scrollRootEl = rootEl;
+    clearAutoScrolls();
+    scrollEl = options.scroll;
+    scrollCustomFn = options.scrollFn;
+    if (scrollEl === true) {
+      scrollEl = getParentAutoScrollElement(rootEl, true);
+    }
+  }
+  var layersOut = 0;
+  var currentParent = scrollEl;
+  do {
+    var el = currentParent,
+      rect = getRect(el),
+      top = rect.top,
+      bottom = rect.bottom,
+      left = rect.left,
+      right = rect.right,
+      width = rect.width,
+      height = rect.height,
+      canScrollX = void 0,
+      canScrollY = void 0,
+      scrollWidth = el.scrollWidth,
+      scrollHeight = el.scrollHeight,
+      elCSS = css(el),
+      scrollPosX = el.scrollLeft,
+      scrollPosY = el.scrollTop;
+    if (el === winScroller) {
+      canScrollX = width < scrollWidth && (elCSS.overflowX === 'auto' || elCSS.overflowX === 'scroll' || elCSS.overflowX === 'visible');
+      canScrollY = height < scrollHeight && (elCSS.overflowY === 'auto' || elCSS.overflowY === 'scroll' || elCSS.overflowY === 'visible');
+    } else {
+      canScrollX = width < scrollWidth && (elCSS.overflowX === 'auto' || elCSS.overflowX === 'scroll');
+      canScrollY = height < scrollHeight && (elCSS.overflowY === 'auto' || elCSS.overflowY === 'scroll');
+    }
+    var vx = canScrollX && (Math.abs(right - x) <= sens && scrollPosX + width < scrollWidth) - (Math.abs(left - x) <= sens && !!scrollPosX);
+    var vy = canScrollY && (Math.abs(bottom - y) <= sens && scrollPosY + height < scrollHeight) - (Math.abs(top - y) <= sens && !!scrollPosY);
+    if (!autoScrolls[layersOut]) {
+      for (var i = 0; i <= layersOut; i++) {
+        if (!autoScrolls[i]) {
+          autoScrolls[i] = {};
+        }
+      }
+    }
+    if (autoScrolls[layersOut].vx != vx || autoScrolls[layersOut].vy != vy || autoScrolls[layersOut].el !== el) {
+      autoScrolls[layersOut].el = el;
+      autoScrolls[layersOut].vx = vx;
+      autoScrolls[layersOut].vy = vy;
+      clearInterval(autoScrolls[layersOut].pid);
+      if (vx != 0 || vy != 0) {
+        scrollThisInstance = true;
+        /* jshint loopfunc:true */
+        autoScrolls[layersOut].pid = setInterval(function () {
+          // emulate drag over during autoscroll (fallback), emulating native DnD behaviour
+          if (isFallback && this.layer === 0) {
+            Sortable.active._onTouchMove(touchEvt$1); // To move ghost if it is positioned absolutely
+          }
+          var scrollOffsetY = autoScrolls[this.layer].vy ? autoScrolls[this.layer].vy * speed : 0;
+          var scrollOffsetX = autoScrolls[this.layer].vx ? autoScrolls[this.layer].vx * speed : 0;
+          if (typeof scrollCustomFn === 'function') {
+            if (scrollCustomFn.call(Sortable.dragged.parentNode[expando], scrollOffsetX, scrollOffsetY, evt, touchEvt$1, autoScrolls[this.layer].el) !== 'continue') {
+              return;
+            }
+          }
+          scrollBy(autoScrolls[this.layer].el, scrollOffsetX, scrollOffsetY);
+        }.bind({
+          layer: layersOut
+        }), 24);
+      }
+    }
+    layersOut++;
+  } while (options.bubbleScroll && currentParent !== winScroller && (currentParent = getParentAutoScrollElement(currentParent, false)));
+  scrolling = scrollThisInstance; // in case another function catches scrolling as false in between when it is not
+}, 30);
+
+var drop = function drop(_ref) {
+  var originalEvent = _ref.originalEvent,
+    putSortable = _ref.putSortable,
+    dragEl = _ref.dragEl,
+    activeSortable = _ref.activeSortable,
+    dispatchSortableEvent = _ref.dispatchSortableEvent,
+    hideGhostForTarget = _ref.hideGhostForTarget,
+    unhideGhostForTarget = _ref.unhideGhostForTarget;
+  if (!originalEvent) return;
+  var toSortable = putSortable || activeSortable;
+  hideGhostForTarget();
+  var touch = originalEvent.changedTouches && originalEvent.changedTouches.length ? originalEvent.changedTouches[0] : originalEvent;
+  var target = document.elementFromPoint(touch.clientX, touch.clientY);
+  unhideGhostForTarget();
+  if (toSortable && !toSortable.el.contains(target)) {
+    dispatchSortableEvent('spill');
+    this.onSpill({
+      dragEl: dragEl,
+      putSortable: putSortable
+    });
+  }
+};
+function Revert() {}
+Revert.prototype = {
+  startIndex: null,
+  dragStart: function dragStart(_ref2) {
+    var oldDraggableIndex = _ref2.oldDraggableIndex;
+    this.startIndex = oldDraggableIndex;
+  },
+  onSpill: function onSpill(_ref3) {
+    var dragEl = _ref3.dragEl,
+      putSortable = _ref3.putSortable;
+    this.sortable.captureAnimationState();
+    if (putSortable) {
+      putSortable.captureAnimationState();
+    }
+    var nextSibling = getChild(this.sortable.el, this.startIndex, this.options);
+    if (nextSibling) {
+      this.sortable.el.insertBefore(dragEl, nextSibling);
+    } else {
+      this.sortable.el.appendChild(dragEl);
+    }
+    this.sortable.animateAll();
+    if (putSortable) {
+      putSortable.animateAll();
+    }
+  },
+  drop: drop
+};
+_extends(Revert, {
+  pluginName: 'revertOnSpill'
+});
+function Remove() {}
+Remove.prototype = {
+  onSpill: function onSpill(_ref4) {
+    var dragEl = _ref4.dragEl,
+      putSortable = _ref4.putSortable;
+    var parentSortable = putSortable || this.sortable;
+    parentSortable.captureAnimationState();
+    dragEl.parentNode && dragEl.parentNode.removeChild(dragEl);
+    parentSortable.animateAll();
+  },
+  drop: drop
+};
+_extends(Remove, {
+  pluginName: 'removeOnSpill'
+});
+
+var lastSwapEl;
+function SwapPlugin() {
+  function Swap() {
+    this.defaults = {
+      swapClass: 'sortable-swap-highlight'
+    };
+  }
+  Swap.prototype = {
+    dragStart: function dragStart(_ref) {
+      var dragEl = _ref.dragEl;
+      lastSwapEl = dragEl;
+    },
+    dragOverValid: function dragOverValid(_ref2) {
+      var completed = _ref2.completed,
+        target = _ref2.target,
+        onMove = _ref2.onMove,
+        activeSortable = _ref2.activeSortable,
+        changed = _ref2.changed,
+        cancel = _ref2.cancel;
+      if (!activeSortable.options.swap) return;
+      var el = this.sortable.el,
+        options = this.options;
+      if (target && target !== el) {
+        var prevSwapEl = lastSwapEl;
+        if (onMove(target) !== false) {
+          toggleClass(target, options.swapClass, true);
+          lastSwapEl = target;
+        } else {
+          lastSwapEl = null;
+        }
+        if (prevSwapEl && prevSwapEl !== lastSwapEl) {
+          toggleClass(prevSwapEl, options.swapClass, false);
+        }
+      }
+      changed();
+      completed(true);
+      cancel();
+    },
+    drop: function drop(_ref3) {
+      var activeSortable = _ref3.activeSortable,
+        putSortable = _ref3.putSortable,
+        dragEl = _ref3.dragEl;
+      var toSortable = putSortable || this.sortable;
+      var options = this.options;
+      lastSwapEl && toggleClass(lastSwapEl, options.swapClass, false);
+      if (lastSwapEl && (options.swap || putSortable && putSortable.options.swap)) {
+        if (dragEl !== lastSwapEl) {
+          toSortable.captureAnimationState();
+          if (toSortable !== activeSortable) activeSortable.captureAnimationState();
+          swapNodes(dragEl, lastSwapEl);
+          toSortable.animateAll();
+          if (toSortable !== activeSortable) activeSortable.animateAll();
+        }
+      }
+    },
+    nulling: function nulling() {
+      lastSwapEl = null;
+    }
+  };
+  return _extends(Swap, {
+    pluginName: 'swap',
+    eventProperties: function eventProperties() {
+      return {
+        swapItem: lastSwapEl
+      };
+    }
+  });
+}
+function swapNodes(n1, n2) {
+  var p1 = n1.parentNode,
+    p2 = n2.parentNode,
+    i1,
+    i2;
+  if (!p1 || !p2 || p1.isEqualNode(n2) || p2.isEqualNode(n1)) return;
+  i1 = index(n1);
+  i2 = index(n2);
+  if (p1.isEqualNode(p2) && i1 < i2) {
+    i2++;
+  }
+  p1.insertBefore(n2, p1.children[i1]);
+  p2.insertBefore(n1, p2.children[i2]);
+}
+
+var multiDragElements = [],
+  multiDragClones = [],
+  lastMultiDragSelect,
+  // for selection with modifier key down (SHIFT)
+  multiDragSortable,
+  initialFolding = false,
+  // Initial multi-drag fold when drag started
+  folding = false,
+  // Folding any other time
+  dragStarted = false,
+  dragEl$1,
+  clonesFromRect,
+  clonesHidden;
+function MultiDragPlugin() {
+  function MultiDrag(sortable) {
+    // Bind all private methods
+    for (var fn in this) {
+      if (fn.charAt(0) === '_' && typeof this[fn] === 'function') {
+        this[fn] = this[fn].bind(this);
+      }
+    }
+    if (!sortable.options.avoidImplicitDeselect) {
+      if (sortable.options.supportPointer) {
+        on(document, 'pointerup', this._deselectMultiDrag);
+      } else {
+        on(document, 'mouseup', this._deselectMultiDrag);
+        on(document, 'touchend', this._deselectMultiDrag);
+      }
+    }
+    on(document, 'keydown', this._checkKeyDown);
+    on(document, 'keyup', this._checkKeyUp);
+    this.defaults = {
+      selectedClass: 'sortable-selected',
+      multiDragKey: null,
+      avoidImplicitDeselect: false,
+      setData: function setData(dataTransfer, dragEl) {
+        var data = '';
+        if (multiDragElements.length && multiDragSortable === sortable) {
+          multiDragElements.forEach(function (multiDragElement, i) {
+            data += (!i ? '' : ', ') + multiDragElement.textContent;
+          });
+        } else {
+          data = dragEl.textContent;
+        }
+        dataTransfer.setData('Text', data);
+      }
+    };
+  }
+  MultiDrag.prototype = {
+    multiDragKeyDown: false,
+    isMultiDrag: false,
+    delayStartGlobal: function delayStartGlobal(_ref) {
+      var dragged = _ref.dragEl;
+      dragEl$1 = dragged;
+    },
+    delayEnded: function delayEnded() {
+      this.isMultiDrag = ~multiDragElements.indexOf(dragEl$1);
+    },
+    setupClone: function setupClone(_ref2) {
+      var sortable = _ref2.sortable,
+        cancel = _ref2.cancel;
+      if (!this.isMultiDrag) return;
+      for (var i = 0; i < multiDragElements.length; i++) {
+        multiDragClones.push(clone(multiDragElements[i]));
+        multiDragClones[i].sortableIndex = multiDragElements[i].sortableIndex;
+        multiDragClones[i].draggable = false;
+        multiDragClones[i].style['will-change'] = '';
+        toggleClass(multiDragClones[i], this.options.selectedClass, false);
+        multiDragElements[i] === dragEl$1 && toggleClass(multiDragClones[i], this.options.chosenClass, false);
+      }
+      sortable._hideClone();
+      cancel();
+    },
+    clone: function clone(_ref3) {
+      var sortable = _ref3.sortable,
+        rootEl = _ref3.rootEl,
+        dispatchSortableEvent = _ref3.dispatchSortableEvent,
+        cancel = _ref3.cancel;
+      if (!this.isMultiDrag) return;
+      if (!this.options.removeCloneOnHide) {
+        if (multiDragElements.length && multiDragSortable === sortable) {
+          insertMultiDragClones(true, rootEl);
+          dispatchSortableEvent('clone');
+          cancel();
+        }
+      }
+    },
+    showClone: function showClone(_ref4) {
+      var cloneNowShown = _ref4.cloneNowShown,
+        rootEl = _ref4.rootEl,
+        cancel = _ref4.cancel;
+      if (!this.isMultiDrag) return;
+      insertMultiDragClones(false, rootEl);
+      multiDragClones.forEach(function (clone) {
+        css(clone, 'display', '');
+      });
+      cloneNowShown();
+      clonesHidden = false;
+      cancel();
+    },
+    hideClone: function hideClone(_ref5) {
+      var _this = this;
+      var sortable = _ref5.sortable,
+        cloneNowHidden = _ref5.cloneNowHidden,
+        cancel = _ref5.cancel;
+      if (!this.isMultiDrag) return;
+      multiDragClones.forEach(function (clone) {
+        css(clone, 'display', 'none');
+        if (_this.options.removeCloneOnHide && clone.parentNode) {
+          clone.parentNode.removeChild(clone);
+        }
+      });
+      cloneNowHidden();
+      clonesHidden = true;
+      cancel();
+    },
+    dragStartGlobal: function dragStartGlobal(_ref6) {
+      var sortable = _ref6.sortable;
+      if (!this.isMultiDrag && multiDragSortable) {
+        multiDragSortable.multiDrag._deselectMultiDrag();
+      }
+      multiDragElements.forEach(function (multiDragElement) {
+        multiDragElement.sortableIndex = index(multiDragElement);
+      });
+
+      // Sort multi-drag elements
+      multiDragElements = multiDragElements.sort(function (a, b) {
+        return a.sortableIndex - b.sortableIndex;
+      });
+      dragStarted = true;
+    },
+    dragStarted: function dragStarted(_ref7) {
+      var _this2 = this;
+      var sortable = _ref7.sortable;
+      if (!this.isMultiDrag) return;
+      if (this.options.sort) {
+        // Capture rects,
+        // hide multi drag elements (by positioning them absolute),
+        // set multi drag elements rects to dragRect,
+        // show multi drag elements,
+        // animate to rects,
+        // unset rects & remove from DOM
+
+        sortable.captureAnimationState();
+        if (this.options.animation) {
+          multiDragElements.forEach(function (multiDragElement) {
+            if (multiDragElement === dragEl$1) return;
+            css(multiDragElement, 'position', 'absolute');
+          });
+          var dragRect = getRect(dragEl$1, false, true, true);
+          multiDragElements.forEach(function (multiDragElement) {
+            if (multiDragElement === dragEl$1) return;
+            setRect(multiDragElement, dragRect);
+          });
+          folding = true;
+          initialFolding = true;
+        }
+      }
+      sortable.animateAll(function () {
+        folding = false;
+        initialFolding = false;
+        if (_this2.options.animation) {
+          multiDragElements.forEach(function (multiDragElement) {
+            unsetRect(multiDragElement);
+          });
+        }
+
+        // Remove all auxiliary multidrag items from el, if sorting enabled
+        if (_this2.options.sort) {
+          removeMultiDragElements();
+        }
+      });
+    },
+    dragOver: function dragOver(_ref8) {
+      var target = _ref8.target,
+        completed = _ref8.completed,
+        cancel = _ref8.cancel;
+      if (folding && ~multiDragElements.indexOf(target)) {
+        completed(false);
+        cancel();
+      }
+    },
+    revert: function revert(_ref9) {
+      var fromSortable = _ref9.fromSortable,
+        rootEl = _ref9.rootEl,
+        sortable = _ref9.sortable,
+        dragRect = _ref9.dragRect;
+      if (multiDragElements.length > 1) {
+        // Setup unfold animation
+        multiDragElements.forEach(function (multiDragElement) {
+          sortable.addAnimationState({
+            target: multiDragElement,
+            rect: folding ? getRect(multiDragElement) : dragRect
+          });
+          unsetRect(multiDragElement);
+          multiDragElement.fromRect = dragRect;
+          fromSortable.removeAnimationState(multiDragElement);
+        });
+        folding = false;
+        insertMultiDragElements(!this.options.removeCloneOnHide, rootEl);
+      }
+    },
+    dragOverCompleted: function dragOverCompleted(_ref10) {
+      var sortable = _ref10.sortable,
+        isOwner = _ref10.isOwner,
+        insertion = _ref10.insertion,
+        activeSortable = _ref10.activeSortable,
+        parentEl = _ref10.parentEl,
+        putSortable = _ref10.putSortable;
+      var options = this.options;
+      if (insertion) {
+        // Clones must be hidden before folding animation to capture dragRectAbsolute properly
+        if (isOwner) {
+          activeSortable._hideClone();
+        }
+        initialFolding = false;
+        // If leaving sort:false root, or already folding - Fold to new location
+        if (options.animation && multiDragElements.length > 1 && (folding || !isOwner && !activeSortable.options.sort && !putSortable)) {
+          // Fold: Set all multi drag elements's rects to dragEl's rect when multi-drag elements are invisible
+          var dragRectAbsolute = getRect(dragEl$1, false, true, true);
+          multiDragElements.forEach(function (multiDragElement) {
+            if (multiDragElement === dragEl$1) return;
+            setRect(multiDragElement, dragRectAbsolute);
+
+            // Move element(s) to end of parentEl so that it does not interfere with multi-drag clones insertion if they are inserted
+            // while folding, and so that we can capture them again because old sortable will no longer be fromSortable
+            parentEl.appendChild(multiDragElement);
+          });
+          folding = true;
+        }
+
+        // Clones must be shown (and check to remove multi drags) after folding when interfering multiDragElements are moved out
+        if (!isOwner) {
+          // Only remove if not folding (folding will remove them anyways)
+          if (!folding) {
+            removeMultiDragElements();
+          }
+          if (multiDragElements.length > 1) {
+            var clonesHiddenBefore = clonesHidden;
+            activeSortable._showClone(sortable);
+
+            // Unfold animation for clones if showing from hidden
+            if (activeSortable.options.animation && !clonesHidden && clonesHiddenBefore) {
+              multiDragClones.forEach(function (clone) {
+                activeSortable.addAnimationState({
+                  target: clone,
+                  rect: clonesFromRect
+                });
+                clone.fromRect = clonesFromRect;
+                clone.thisAnimationDuration = null;
+              });
+            }
+          } else {
+            activeSortable._showClone(sortable);
+          }
+        }
+      }
+    },
+    dragOverAnimationCapture: function dragOverAnimationCapture(_ref11) {
+      var dragRect = _ref11.dragRect,
+        isOwner = _ref11.isOwner,
+        activeSortable = _ref11.activeSortable;
+      multiDragElements.forEach(function (multiDragElement) {
+        multiDragElement.thisAnimationDuration = null;
+      });
+      if (activeSortable.options.animation && !isOwner && activeSortable.multiDrag.isMultiDrag) {
+        clonesFromRect = _extends({}, dragRect);
+        var dragMatrix = matrix(dragEl$1, true);
+        clonesFromRect.top -= dragMatrix.f;
+        clonesFromRect.left -= dragMatrix.e;
+      }
+    },
+    dragOverAnimationComplete: function dragOverAnimationComplete() {
+      if (folding) {
+        folding = false;
+        removeMultiDragElements();
+      }
+    },
+    drop: function drop(_ref12) {
+      var evt = _ref12.originalEvent,
+        rootEl = _ref12.rootEl,
+        parentEl = _ref12.parentEl,
+        sortable = _ref12.sortable,
+        dispatchSortableEvent = _ref12.dispatchSortableEvent,
+        oldIndex = _ref12.oldIndex,
+        putSortable = _ref12.putSortable;
+      var toSortable = putSortable || this.sortable;
+      if (!evt) return;
+      var options = this.options,
+        children = parentEl.children;
+
+      // Multi-drag selection
+      if (!dragStarted) {
+        if (options.multiDragKey && !this.multiDragKeyDown) {
+          this._deselectMultiDrag();
+        }
+        toggleClass(dragEl$1, options.selectedClass, !~multiDragElements.indexOf(dragEl$1));
+        if (!~multiDragElements.indexOf(dragEl$1)) {
+          multiDragElements.push(dragEl$1);
+          dispatchEvent({
+            sortable: sortable,
+            rootEl: rootEl,
+            name: 'select',
+            targetEl: dragEl$1,
+            originalEvent: evt
+          });
+
+          // Modifier activated, select from last to dragEl
+          if (evt.shiftKey && lastMultiDragSelect && sortable.el.contains(lastMultiDragSelect)) {
+            var lastIndex = index(lastMultiDragSelect),
+              currentIndex = index(dragEl$1);
+            if (~lastIndex && ~currentIndex && lastIndex !== currentIndex) {
+              // Must include lastMultiDragSelect (select it), in case modified selection from no selection
+              // (but previous selection existed)
+              var n, i;
+              if (currentIndex > lastIndex) {
+                i = lastIndex;
+                n = currentIndex;
+              } else {
+                i = currentIndex;
+                n = lastIndex + 1;
+              }
+              for (; i < n; i++) {
+                if (~multiDragElements.indexOf(children[i])) continue;
+                toggleClass(children[i], options.selectedClass, true);
+                multiDragElements.push(children[i]);
+                dispatchEvent({
+                  sortable: sortable,
+                  rootEl: rootEl,
+                  name: 'select',
+                  targetEl: children[i],
+                  originalEvent: evt
+                });
+              }
+            }
+          } else {
+            lastMultiDragSelect = dragEl$1;
+          }
+          multiDragSortable = toSortable;
+        } else {
+          multiDragElements.splice(multiDragElements.indexOf(dragEl$1), 1);
+          lastMultiDragSelect = null;
+          dispatchEvent({
+            sortable: sortable,
+            rootEl: rootEl,
+            name: 'deselect',
+            targetEl: dragEl$1,
+            originalEvent: evt
+          });
+        }
+      }
+
+      // Multi-drag drop
+      if (dragStarted && this.isMultiDrag) {
+        folding = false;
+        // Do not "unfold" after around dragEl if reverted
+        if ((parentEl[expando].options.sort || parentEl !== rootEl) && multiDragElements.length > 1) {
+          var dragRect = getRect(dragEl$1),
+            multiDragIndex = index(dragEl$1, ':not(.' + this.options.selectedClass + ')');
+          if (!initialFolding && options.animation) dragEl$1.thisAnimationDuration = null;
+          toSortable.captureAnimationState();
+          if (!initialFolding) {
+            if (options.animation) {
+              dragEl$1.fromRect = dragRect;
+              multiDragElements.forEach(function (multiDragElement) {
+                multiDragElement.thisAnimationDuration = null;
+                if (multiDragElement !== dragEl$1) {
+                  var rect = folding ? getRect(multiDragElement) : dragRect;
+                  multiDragElement.fromRect = rect;
+
+                  // Prepare unfold animation
+                  toSortable.addAnimationState({
+                    target: multiDragElement,
+                    rect: rect
+                  });
+                }
+              });
+            }
+
+            // Multi drag elements are not necessarily removed from the DOM on drop, so to reinsert
+            // properly they must all be removed
+            removeMultiDragElements();
+            multiDragElements.forEach(function (multiDragElement) {
+              if (children[multiDragIndex]) {
+                parentEl.insertBefore(multiDragElement, children[multiDragIndex]);
+              } else {
+                parentEl.appendChild(multiDragElement);
+              }
+              multiDragIndex++;
+            });
+
+            // If initial folding is done, the elements may have changed position because they are now
+            // unfolding around dragEl, even though dragEl may not have his index changed, so update event
+            // must be fired here as Sortable will not.
+            if (oldIndex === index(dragEl$1)) {
+              var update = false;
+              multiDragElements.forEach(function (multiDragElement) {
+                if (multiDragElement.sortableIndex !== index(multiDragElement)) {
+                  update = true;
+                  return;
+                }
+              });
+              if (update) {
+                dispatchSortableEvent('update');
+                dispatchSortableEvent('sort');
+              }
+            }
+          }
+
+          // Must be done after capturing individual rects (scroll bar)
+          multiDragElements.forEach(function (multiDragElement) {
+            unsetRect(multiDragElement);
+          });
+          toSortable.animateAll();
+        }
+        multiDragSortable = toSortable;
+      }
+
+      // Remove clones if necessary
+      if (rootEl === parentEl || putSortable && putSortable.lastPutMode !== 'clone') {
+        multiDragClones.forEach(function (clone) {
+          clone.parentNode && clone.parentNode.removeChild(clone);
+        });
+      }
+    },
+    nullingGlobal: function nullingGlobal() {
+      this.isMultiDrag = dragStarted = false;
+      multiDragClones.length = 0;
+    },
+    destroyGlobal: function destroyGlobal() {
+      this._deselectMultiDrag();
+      off(document, 'pointerup', this._deselectMultiDrag);
+      off(document, 'mouseup', this._deselectMultiDrag);
+      off(document, 'touchend', this._deselectMultiDrag);
+      off(document, 'keydown', this._checkKeyDown);
+      off(document, 'keyup', this._checkKeyUp);
+    },
+    _deselectMultiDrag: function _deselectMultiDrag(evt) {
+      if (typeof dragStarted !== "undefined" && dragStarted) return;
+
+      // Only deselect if selection is in this sortable
+      if (multiDragSortable !== this.sortable) return;
+
+      // Only deselect if target is not item in this sortable
+      if (evt && closest(evt.target, this.options.draggable, this.sortable.el, false)) return;
+
+      // Only deselect if left click
+      if (evt && evt.button !== 0) return;
+      while (multiDragElements.length) {
+        var el = multiDragElements[0];
+        toggleClass(el, this.options.selectedClass, false);
+        multiDragElements.shift();
+        dispatchEvent({
+          sortable: this.sortable,
+          rootEl: this.sortable.el,
+          name: 'deselect',
+          targetEl: el,
+          originalEvent: evt
+        });
+      }
+    },
+    _checkKeyDown: function _checkKeyDown(evt) {
+      if (evt.key === this.options.multiDragKey) {
+        this.multiDragKeyDown = true;
+      }
+    },
+    _checkKeyUp: function _checkKeyUp(evt) {
+      if (evt.key === this.options.multiDragKey) {
+        this.multiDragKeyDown = false;
+      }
+    }
+  };
+  return _extends(MultiDrag, {
+    // Static methods & properties
+    pluginName: 'multiDrag',
+    utils: {
+      /**
+       * Selects the provided multi-drag item
+       * @param  {HTMLElement} el    The element to be selected
+       */
+      select: function select(el) {
+        var sortable = el.parentNode[expando];
+        if (!sortable || !sortable.options.multiDrag || ~multiDragElements.indexOf(el)) return;
+        if (multiDragSortable && multiDragSortable !== sortable) {
+          multiDragSortable.multiDrag._deselectMultiDrag();
+          multiDragSortable = sortable;
+        }
+        toggleClass(el, sortable.options.selectedClass, true);
+        multiDragElements.push(el);
+      },
+      /**
+       * Deselects the provided multi-drag item
+       * @param  {HTMLElement} el    The element to be deselected
+       */
+      deselect: function deselect(el) {
+        var sortable = el.parentNode[expando],
+          index = multiDragElements.indexOf(el);
+        if (!sortable || !sortable.options.multiDrag || !~index) return;
+        toggleClass(el, sortable.options.selectedClass, false);
+        multiDragElements.splice(index, 1);
+      }
+    },
+    eventProperties: function eventProperties() {
+      var _this3 = this;
+      var oldIndicies = [],
+        newIndicies = [];
+      multiDragElements.forEach(function (multiDragElement) {
+        oldIndicies.push({
+          multiDragElement: multiDragElement,
+          index: multiDragElement.sortableIndex
+        });
+
+        // multiDragElements will already be sorted if folding
+        var newIndex;
+        if (folding && multiDragElement !== dragEl$1) {
+          newIndex = -1;
+        } else if (folding) {
+          newIndex = index(multiDragElement, ':not(.' + _this3.options.selectedClass + ')');
+        } else {
+          newIndex = index(multiDragElement);
+        }
+        newIndicies.push({
+          multiDragElement: multiDragElement,
+          index: newIndex
+        });
+      });
+      return {
+        items: _toConsumableArray(multiDragElements),
+        clones: [].concat(multiDragClones),
+        oldIndicies: oldIndicies,
+        newIndicies: newIndicies
+      };
+    },
+    optionListeners: {
+      multiDragKey: function multiDragKey(key) {
+        key = key.toLowerCase();
+        if (key === 'ctrl') {
+          key = 'Control';
+        } else if (key.length > 1) {
+          key = key.charAt(0).toUpperCase() + key.substr(1);
+        }
+        return key;
+      }
+    }
+  });
+}
+function insertMultiDragElements(clonesInserted, rootEl) {
+  multiDragElements.forEach(function (multiDragElement, i) {
+    var target = rootEl.children[multiDragElement.sortableIndex + (clonesInserted ? Number(i) : 0)];
+    if (target) {
+      rootEl.insertBefore(multiDragElement, target);
+    } else {
+      rootEl.appendChild(multiDragElement);
+    }
+  });
+}
+
+/**
+ * Insert multi-drag clones
+ * @param  {[Boolean]} elementsInserted  Whether the multi-drag elements are inserted
+ * @param  {HTMLElement} rootEl
+ */
+function insertMultiDragClones(elementsInserted, rootEl) {
+  multiDragClones.forEach(function (clone, i) {
+    var target = rootEl.children[clone.sortableIndex + (elementsInserted ? Number(i) : 0)];
+    if (target) {
+      rootEl.insertBefore(clone, target);
+    } else {
+      rootEl.appendChild(clone);
+    }
+  });
+}
+function removeMultiDragElements() {
+  multiDragElements.forEach(function (multiDragElement) {
+    if (multiDragElement === dragEl$1) return;
+    multiDragElement.parentNode && multiDragElement.parentNode.removeChild(multiDragElement);
+  });
+}
+
+Sortable.mount(new AutoScrollPlugin());
+Sortable.mount(Remove, Revert);
+
+export default Sortable;
+export { MultiDragPlugin as MultiDrag, Sortable, SwapPlugin as Swap };
diff --git a/src/Extensions/Components/BootstrapBlazor.Topology/Components/Topology/Topology.razor.cs b/src/Extensions/Components/BootstrapBlazor.Topology/Components/Topology/Topology.razor.cs
index 1bc990b5af2..72a5efc8179 100644
--- a/src/Extensions/Components/BootstrapBlazor.Topology/Components/Topology/Topology.razor.cs
+++ b/src/Extensions/Components/BootstrapBlazor.Topology/Components/Topology/Topology.razor.cs
@@ -9,7 +9,7 @@ namespace BootstrapBlazor.Components;
 /// <summary>
 /// Topology 组件类
 /// </summary>
-public partial class Topology : IAsyncDisposable
+public partial class Topology
 {
     /// <summary>
     /// 获得/设置 JSON 文件内容