From 338d7d3c87f35230f4fa7efe19da7b0ae56a152b Mon Sep 17 00:00:00 2001
From: croire <1432593898@qq.com>
Date: Sun, 16 Oct 2022 00:20:10 +0800
Subject: [PATCH] =?UTF-8?q?=E9=9F=B3=E8=A7=86=E9=A2=91=E5=88=86=E7=A6=BB?=
 =?UTF-8?q?=E6=94=AF=E6=8C=81=E5=A4=9A=E9=80=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 DownKyi/Utils/DialogUtils.cs                  | 16 +++++
 .../Toolbox/ViewExtractMediaViewModel.cs      | 61 +++++++++++++------
 DownKyi/Views/Toolbox/ViewExtractMedia.xaml   |  6 +-
 3 files changed, 60 insertions(+), 23 deletions(-)

diff --git a/DownKyi/Utils/DialogUtils.cs b/DownKyi/Utils/DialogUtils.cs
index 41b08d7..9852eb4 100644
--- a/DownKyi/Utils/DialogUtils.cs
+++ b/DownKyi/Utils/DialogUtils.cs
@@ -37,5 +37,21 @@ namespace DownKyi.Utils
             return showDialog == true ? dialog.FileName : "";
         }
 
+
+        /// <summary>
+        /// 选择多个视频dialog
+        /// </summary>
+        /// <returns></returns>
+        public static string[] SelectMultiVideoFile()
+        {
+            // 选择文件
+            var dialog = new Microsoft.Win32.OpenFileDialog
+            {
+                Filter = "mp4 (*.mp4)|*.mp4",
+                Multiselect = true
+            };
+            var showDialog = dialog.ShowDialog();
+            return showDialog == true ? dialog.FileNames : new string[0];
+        }
     }
 }
diff --git a/DownKyi/ViewModels/Toolbox/ViewExtractMediaViewModel.cs b/DownKyi/ViewModels/Toolbox/ViewExtractMediaViewModel.cs
index bd8e1e7..cbd4cd6 100644
--- a/DownKyi/ViewModels/Toolbox/ViewExtractMediaViewModel.cs
+++ b/DownKyi/ViewModels/Toolbox/ViewExtractMediaViewModel.cs
@@ -18,11 +18,25 @@ namespace DownKyi.ViewModels.Toolbox
 
         #region 页面属性申明
 
-        private string videoPath;
-        public string VideoPath
+        private string videoPathsStr;
+        public string VideoPathsStr
         {
-            get { return videoPath; }
-            set { SetProperty(ref videoPath, value); }
+            get => videoPathsStr;
+            set
+            {
+                SetProperty(ref videoPathsStr, value);
+            }
+        }
+
+        private string[] videoPaths;
+        public string[] VideoPaths
+        {
+            get => videoPaths;
+            set
+            {
+                videoPaths = value;
+                VideoPathsStr = string.Join(Environment.NewLine, value);
+            }
         }
 
         private string status;
@@ -38,7 +52,7 @@ namespace DownKyi.ViewModels.Toolbox
         {
             #region 属性初始化
 
-            VideoPath = string.Empty;
+            VideoPaths = new string[0];
 
             #endregion
         }
@@ -60,7 +74,7 @@ namespace DownKyi.ViewModels.Toolbox
                 return;
             }
 
-            VideoPath = DialogUtils.SelectVideoFile();
+            VideoPaths = DialogUtils.SelectMultiVideoFile();
         }
 
         // 提取音频事件
@@ -78,24 +92,27 @@ namespace DownKyi.ViewModels.Toolbox
                 return;
             }
 
-            if (VideoPath == "")
+            if (VideoPaths.Length <= 0)
             {
                 eventAggregator.GetEvent<MessageEvent>().Publish(DictionaryResource.GetString("TipNoSeletedVideo"));
                 return;
             }
 
-            // 音频文件名
-            string audioFileName = VideoPath.Remove(VideoPath.Length - 4, 4) + ".aac";
             Status = string.Empty;
 
             await Task.Run(() =>
             {
-                // 执行提取音频程序
                 isExtracting = true;
-                FFmpegHelper.ExtractAudio(VideoPath, audioFileName, new Action<string>((output) =>
+                foreach (var item in VideoPaths)
                 {
-                    Status += output + "\n";
-                }));
+                    // 音频文件名
+                    string audioFileName = item.Remove(item.Length - 4, 4) + ".aac";
+                    // 执行提取音频程序
+                    FFmpegHelper.ExtractAudio(item, audioFileName, new Action<string>((output) =>
+                    {
+                        Status += output + "\n";
+                    }));
+                }
                 isExtracting = false;
             });
         }
@@ -115,30 +132,34 @@ namespace DownKyi.ViewModels.Toolbox
                 return;
             }
 
-            if (VideoPath == "")
+            if (VideoPaths.Length <= 0)
             {
                 eventAggregator.GetEvent<MessageEvent>().Publish(DictionaryResource.GetString("TipNoSeletedVideo"));
                 return;
             }
 
-            // 视频文件名
-            string videoFileName = VideoPath.Remove(VideoPath.Length - 4, 4) + "_onlyVideo.mp4";
             Status = string.Empty;
 
             await Task.Run(() =>
             {
-                // 执行提取视频程序
                 isExtracting = true;
-                FFmpegHelper.ExtractVideo(VideoPath, videoFileName, new Action<string>((output) =>
+                foreach (var item in VideoPaths)
                 {
-                    Status += output + "\n";
-                }));
+                    // 视频文件名
+                    string videoFileName = item.Remove(item.Length - 4, 4) + "_onlyVideo.mp4";
+                    // 执行提取视频程序
+                    FFmpegHelper.ExtractVideo(item, videoFileName, new Action<string>((output) =>
+                    {
+                        Status += output + "\n";
+                    }));
+                }
                 isExtracting = false;
             });
         }
 
         // Status改变事件
         private DelegateCommand<object> statusCommand;
+
         public DelegateCommand<object> StatusCommand => statusCommand ?? (statusCommand = new DelegateCommand<object>(ExecuteStatusCommand));
 
         /// <summary>
diff --git a/DownKyi/Views/Toolbox/ViewExtractMedia.xaml b/DownKyi/Views/Toolbox/ViewExtractMedia.xaml
index b47bb26..13675c6 100644
--- a/DownKyi/Views/Toolbox/ViewExtractMedia.xaml
+++ b/DownKyi/Views/Toolbox/ViewExtractMedia.xaml
@@ -9,7 +9,7 @@
     <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Disabled">
         <Grid Margin="50,0">
             <Grid.RowDefinitions>
-                <RowDefinition Height="150" />
+                <RowDefinition Height="200" />
                 <RowDefinition />
             </Grid.RowDefinitions>
 
@@ -28,11 +28,11 @@
                     <TextBlock VerticalAlignment="Center" Text="{DynamicResource VideoFilePath}" />
                     <TextBox
                         Width="300"
-                        Height="20"
+                        Height="50"
                         Margin="0,10,10,10"
                         VerticalContentAlignment="Center"
                         IsReadOnly="True"
-                        Text="{Binding VideoPath, Mode=TwoWay}" />
+                        Text="{Binding VideoPathsStr, Mode=TwoWay}" />
 
                     <Button
                         Width="75"