feature<StashDropConfirm>: need confirm before drop selected stash

src/Resources/Locales/en_US.xaml

@@ -399,6 +399,9 @@
     <sys:String x:Key="Text.Stashes.Stashes">STASHES</sys:String>
     <sys:String x:Key="Text.Stashes.Changes">CHANGES</sys:String>
 
+    <sys:String x:Key="Text.StashDropConfirm">Confirm To Drop Stash</sys:String>
+    <sys:String x:Key="Text.StashDropConfirm.Label">Drop :</sys:String>
+
     <sys:String x:Key="Text.TwoCommitsDiff">COMMIT : {0} -> {1}</sys:String>
 
     <sys:String x:Key="Text.UpdateAvailable">UPDATE AVAILABLE</sys:String>

src/Resources/Locales/zh_CN.xaml

@@ -398,6 +398,9 @@
     <sys:String x:Key="Text.Stashes.Stashes">贮藏列表</sys:String>
     <sys:String x:Key="Text.Stashes.Changes">查看变更</sys:String>
 
+    <sys:String x:Key="Text.StashDropConfirm">丢弃贮藏确认</sys:String>
+    <sys:String x:Key="Text.StashDropConfirm.Label">丢弃贮藏 ：</sys:String>
+
     <sys:String x:Key="Text.TwoCommitsDiff">对比提交 : {0} -> {1}</sys:String>
 
     <sys:String x:Key="Text.UpdateAvailable">检测更新</sys:String>

src/Views/Popups/StashDropConfirm.xaml

@@ -0,0 +1,33 @@
+<controls:PopupWidget 
+    x:Class="SourceGit.Views.Popups.StashDropConfirm"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+    xmlns:controls="clr-namespace:SourceGit.Views.Controls"
+    mc:Ignorable="d" 
+    d:DesignWidth="500">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="32"/>
+        </Grid.RowDefinitions>
+
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="100"/>
+            <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+
+        <TextBlock
+            Grid.Row="0" Grid.Column="0"
+            Margin="0,0,8,0"
+            Text="{DynamicResource Text.StashDropConfirm.Label}"
+            HorizontalAlignment="Right"/>
+        <StackPanel
+            Grid.Row="0" Grid.Column="1"
+            Orientation="Horizontal"
+            VerticalAlignment="Center">
+            <Path Width="14" Height="14" Data="{StaticResource Icon.Stashes}"/>
+            <TextBlock x:Name="txtTarget" Margin="8,0,0,0"/>
+        </StackPanel>
+    </Grid>
+</controls:PopupWidget>

src/Views/Popups/StashDropConfirm.xaml.cs

@@ -0,0 +1,33 @@
+using System.Threading.Tasks;
+
+namespace SourceGit.Views.Popups {
+    /// <summary>
+    ///     确认丢弃选中的贮藏
+    /// </summary>
+    public partial class StashDropConfirm : Controls.PopupWidget {
+        private string repo;
+        private string stash;
+
+        public StashDropConfirm(string repo, string stash, string msg) {
+            this.repo = repo;
+            this.stash = stash;
+
+            InitializeComponent();
+
+            txtTarget.Text = stash + " - " + msg;
+        }
+
+        public override string GetTitle() {
+            return App.Text("StashDropConfirm");
+        }
+
+        public override Task<bool> Start() {
+            return Task.Run(() => {
+                Models.Watcher.SetEnabled(repo, false);
+                new Commands.Stash(repo).Drop(stash);
+                Models.Watcher.SetEnabled(repo, true);
+                return true;
+            });
+        }
+    }
+}

src/Views/Widgets/Stashes.xaml.cs

@@ -65,7 +65,7 @@ namespace SourceGit.Views.Widgets {
 
             var delete = new MenuItem();
             delete.Header = App.Text("StashCM.Drop");
-            delete.Click += (o, e) => Start(() => new Commands.Stash(repo).Drop(stash.Name));
+            delete.Click += (o, e) => new Popups.StashDropConfirm(repo, stash.Name, stash.Message).Show();
 
             var menu = new ContextMenu();
             menu.Items.Add(apply);