基本完成FileIOPanel的改造，使用WeakReferenceMessenger实现ViewModel调用View

autodotua · May 5, 2024 · 36957b1 · 36957b1
1 parent c0e5e04
commit 36957b1
Show file tree

Hide file tree

Showing 12 changed files with 282 additions and 192 deletions.
diff --git a/SimpleFFmpegGUI.WPF/MainWindow.xaml.cs b/SimpleFFmpegGUI.WPF/MainWindow.xaml.cs
@@ -1,10 +1,13 @@
-using FzLib;
+using CommunityToolkit.Mvvm.Messaging;
+using FzLib;
 using FzLib.WPF;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Win32;
 using ModernWpf.FzExtension.CommonDialog;
 using SimpleFFmpegGUI.Manager;
 using SimpleFFmpegGUI.Model;
 using SimpleFFmpegGUI.WPF.Converters;
+using SimpleFFmpegGUI.WPF.Messages;
 using SimpleFFmpegGUI.WPF.Model;
 using SimpleFFmpegGUI.WPF.Pages;
 using SimpleFFmpegGUI.WPF.Panels;
@@ -23,10 +26,12 @@
 using System.Windows.Data;
 using System.Windows.Documents;
 using System.Windows.Input;
+using System.Windows.Interop;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;
+using CommonDialog = ModernWpf.FzExtension.CommonDialog.CommonDialog;
 using Task = System.Threading.Tasks.Task;
 
 namespace SimpleFFmpegGUI.WPF
@@ -51,6 +56,56 @@ public MainWindow(MainWindowViewModel viewModel, QueueManager queue)
             DataContext = ViewModel;
             InitializeComponent();
             this.queue = queue;
+            RegisterMessages();
+        }
+
+        private void RegisterMessages()
+        {
+            WeakReferenceMessenger.Default.Register<FileDialogMessage>(this, (_, m) =>
+            {
+                switch (m.Dialog)
+                {
+                    case OpenFileDialog ofd:
+                        m.Result = ofd.ShowDialog(this);
+                        break;
+                    case SaveFileDialog sfd:
+                        m.Result = sfd.ShowDialog(this);
+                        break;
+                    case OpenFolderDialog ofod:
+                        m.Result = ofod.ShowDialog(this);
+                        break;
+                    default:
+                        break;
+                }
+            });
+
+            WeakReferenceMessenger.Default.Register<WindowHandleMessage>(this, (_, m) =>
+            {
+                m.Handle = new WindowInteropHelper(this).Handle;
+            });
+
+            WeakReferenceMessenger.Default.Register<WindowEnableMessage>(this, (_, m) =>
+            {
+                IsEnabled = m.IsEnabled;
+            });
+
+            WeakReferenceMessenger.Default.Register<QueueMessagesMessage>(this, (_, m) =>
+            {
+                switch (m.Type)
+                {
+                    case 'S':
+                        this.CreateMessage().QueueSuccess(m.Message);
+                        break;
+                    case 'E' when m.Exception == null:
+                        this.CreateMessage().QueueError(m.Message);
+                        break;
+                    case 'E' when m.Exception != null:
+                        this.CreateMessage().QueueError(m.Message, m.Exception);
+                        break;
+                    default:
+                        break;
+                }
+            });
         }
 
         public event EventHandler UiCompressModeChanged;
@@ -158,13 +213,13 @@ protected override async void OnContentRendered(EventArgs e)
         {
             base.OnContentRendered(e);
             await Task.Yield();
-            string[] files = new[]
-            {
+            string[] files =
+            [
                 "ffmpeg.exe",
                 "ffprobe.exe",
                 "ffplay.exe",
                 "mediainfo.exe"
-            };
+            ];
 
             foreach (var file in files)
             {

diff --git a/SimpleFFmpegGUI.WPF/Messages/FileDialogMessage.cs b/SimpleFFmpegGUI.WPF/Messages/FileDialogMessage.cs
@@ -0,0 +1,14 @@
+using Microsoft.Win32;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SimpleFFmpegGUI.WPF.Messages
+{
+    public class FileDialogMessage(CommonItemDialog dialog)
+    {
+        public CommonItemDialog Dialog { get; } = dialog;
+        public bool? Result { get; set; }
+    }
+}
diff --git a/SimpleFFmpegGUI.WPF/Messages/QueueMessagesMessage.cs b/SimpleFFmpegGUI.WPF/Messages/QueueMessagesMessage.cs
@@ -0,0 +1,11 @@
+using System;
+
+namespace SimpleFFmpegGUI.WPF.Messages
+{
+    public class QueueMessagesMessage(char type, string message, Exception exception = null)
+    {
+        public char Type { get; } = type;
+        public string Message { get; } = message;
+        public Exception Exception { get; } = exception;
+    }
+}
diff --git a/SimpleFFmpegGUI.WPF/Messages/WindowEnableMessage.cs b/SimpleFFmpegGUI.WPF/Messages/WindowEnableMessage.cs
@@ -0,0 +1,7 @@
+namespace SimpleFFmpegGUI.WPF.Messages
+{
+    public class WindowEnableMessage(bool isEnabled)
+    {
+        public bool IsEnabled { get; } = isEnabled;
+    }
+}
diff --git a/SimpleFFmpegGUI.WPF/Messages/WindowHandleMessage.cs b/SimpleFFmpegGUI.WPF/Messages/WindowHandleMessage.cs
@@ -0,0 +1,7 @@
+namespace SimpleFFmpegGUI.WPF.Messages
+{
+    public class WindowHandleMessage()
+    {
+        public nint Handle { get; set; }
+    }
+}
diff --git a/SimpleFFmpegGUI.WPF/Pages/AddTaskPage.xaml.cs b/SimpleFFmpegGUI.WPF/Pages/AddTaskPage.xaml.cs
@@ -96,7 +96,7 @@ private async void ViewModel_PropertyChanged(object sender, PropertyChangedEvent
             switch (e.PropertyName)
             {
                 case nameof(ViewModel.Type):
-                    fileIOPanel.Update(ViewModel.Type);
+                    fileIOPanel.UpdateType(ViewModel.Type);
                     await argumentsPanel.UpdateTypeAsync(ViewModel.Type);
                     await presetsPanel.UpdateTypeAsync(ViewModel.Type);
                     break;

diff --git a/SimpleFFmpegGUI.WPF/Panels/FileIOPanel.xaml b/SimpleFFmpegGUI.WPF/Panels/FileIOPanel.xaml
@@ -74,16 +74,20 @@
                                         VerticalAlignment="Center"
                                         Orientation="Horizontal"
                                         Spacing="8">
-                                        <Button Click="BrowseFileButton_Click">
+                                        <Button
+                                            Command="{Binding DataContext.BrowseFileCommand, Source={x:Reference root}}"
+                                            CommandParameter="{Binding .}">
                                             <ui:SymbolIcon Symbol="OpenFile" />
                                         </Button>
                                         <Button
-                                            Click="ClipButton_Click"
+                                            Command="{Binding DataContext.ClipCommand, Source={x:Reference root}}"
+                                            CommandParameter="{Binding .}"
                                             Visibility="{Binding ElementName=root, Path=DataContext.ShowTimeClip, Converter={StaticResource Bool2VisibilityConverter}}">
                                             <ui:SymbolIcon Symbol="Cut" />
                                         </Button>
                                         <Button
-                                            Click="DeleteFileButton_Click"
+                                            Command="{Binding DataContext.RemoveFileCommand, Source={x:Reference root}}"
+                                            CommandParameter="{Binding .}"
                                             IsEnabled="{Binding CanDelete}"
                                             Visibility="{Binding ElementName=root, Path=DataContext.CanChangeInputsCount, Converter={StaticResource Bool2VisibilityConverter}}">
                                             <ui:SymbolIcon Symbol="Delete" />
@@ -244,7 +248,7 @@
             <Button
                 Grid.Column="2"
                 VerticalAlignment="Bottom"
-                Click="BrowseOutputFileButton_Click">
+                Command="{Binding BrowseOutputFileCommand}">
                 <ui:SymbolIcon Symbol="OpenFile" />
             </Button>
         </Grid>

diff --git a/SimpleFFmpegGUI.WPF/Panels/FileIOPanel.xaml.cs b/SimpleFFmpegGUI.WPF/Panels/FileIOPanel.xaml.cs
@@ -1,10 +1,12 @@
-using FzLib.WPF;
+using CommunityToolkit.Mvvm.Messaging;
+using FzLib.WPF;
 using Microsoft.DotNet.PlatformAbstractions;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Win32;
 using ModernWpf.FzExtension.CommonDialog;
 using SimpleFFmpegGUI.Manager;
 using SimpleFFmpegGUI.Model;
+using SimpleFFmpegGUI.WPF.Messages;
 using SimpleFFmpegGUI.WPF.Model;
 using SimpleFFmpegGUI.WPF.Pages;
 using SimpleFFmpegGUI.WPF.ViewModels;
@@ -32,16 +34,15 @@
 
 namespace SimpleFFmpegGUI.WPF.Panels
 {
-
     public partial class FileIOPanel : UserControl
     {
         public FileIOPanel()
         {
-            DataContext = ViewModel;
+            ViewModel = this.SetDataContext<FileIOPanelViewModel>();
             InitializeComponent();
         }
 
-        public FileIOPanelViewModel ViewModel { get; } = App.ServiceProvider.GetService<FileIOPanelViewModel>();
+        public FileIOPanelViewModel ViewModel { get; }
 
         public void AddInput()
         {
@@ -126,15 +127,12 @@ public void Reset()
 
         public void Update(TaskType type, List<InputArguments> inputs, string output)
         {
-            if (!ViewModel.Update(type, inputs, output))
-            {
-                this.GetWindow().CreateMessage().QueueError("输入文件超过该类型最大数量");
-            }
+            ViewModel.Update(type, inputs, output);
         }
 
-        public void Update(TaskType type)
+        public void UpdateType(TaskType type)
         {
-            ViewModel.Update(type);
+            ViewModel.UpdateType(type);
             ViewModel.Reset(true);
         }
 
@@ -172,107 +170,5 @@ protected override void OnDrop(DragEventArgs e)
                 ViewModel.Inputs.Add(new InputArgumentsDetail());
             }
         }
-
-        private async void BrowseFileButton_Click(object sender, RoutedEventArgs e)
-        {
-            var input = (sender as FrameworkElement).DataContext as InputArgumentsDetail;
-
-            var dialog = new OpenFileDialog().AddAllFilesFilter();
-            string path = dialog.GetPath(this.GetWindow());
-            if (path != null)
-            {
-                if (input.Image2)
-                {
-                    string seqFilename = FileSystemUtility.GetSequence(path);
-                    if (seqFilename != null)
-                    {
-                        bool rename = await CommonDialog.ShowYesNoDialogAsync("图像序列", $"指定的文件可能是图像序列中的一个，是否将输入路径修改为{seqFilename}？");
-                        if (rename)
-                        {
-                            path = seqFilename;
-                        }
-                    }
-                }
-
-
-                input.FilePath = path;
-            }
-        }
-
-        private void BrowseOutputFileButton_Click(object sender, RoutedEventArgs e)
-        {
-            string path = new OpenFolderDialog().GetPath(this.GetWindow());
-            if (path != null)
-            {
-                ViewModel.OutputDir = path;
-            }
-        }
-
-        private async void ClipButton_Click(object sender, RoutedEventArgs e)
-        {
-            try
-            {
-                var input = (sender as FrameworkElement).DataContext as InputArgumentsDetail;
-                Debug.Assert(input != null);
-                if (string.IsNullOrEmpty(input.FilePath))
-                {
-                    this.CreateMessage().QueueError("请先设置文件地址");
-                    return;
-                }
-                if (!File.Exists(input.FilePath))
-                {
-                    this.CreateMessage().QueueError($"找不到文件{input.FilePath}");
-                    return;
-                }
-                this.GetWindow().IsEnabled = false;
-                (TimeSpan From, TimeSpan To)? result = null;
-                Process p = new Process()
-                {
-                    StartInfo = new ProcessStartInfo()
-                    {
-                        FileName = FzLib.Program.App.ProgramFilePath,
-                        RedirectStandardOutput = true,
-                    }
-                };
-                p.StartInfo.ArgumentList.Add("cut");
-                p.StartInfo.ArgumentList.Add(new WindowInteropHelper(this.GetWindow()).Handle.ToString());
-                p.StartInfo.ArgumentList.Add(input.FilePath);
-                p.StartInfo.ArgumentList.Add(input.From.HasValue ? input.From.Value.ToString() : "-");
-                p.StartInfo.ArgumentList.Add(input.To.HasValue ? input.To.Value.ToString() : "-");
-                p.Start();
-                var output = await p.StandardOutput.ReadToEndAsync();
-                string[] outputs = output.Split(',');
-                if (outputs.Length == 2)
-                {
-                    if (TimeSpan.TryParse(outputs[0], out TimeSpan from))
-                    {
-                        if (TimeSpan.TryParse(outputs[1], out TimeSpan to))
-                        {
-                            result = (from, to);
-                        }
-                    }
-                }
-                if (result.HasValue)
-                {
-                    var time = result.Value;
-                    input.From = time.From;
-                    input.To = time.To;
-                    input.Duration = null;
-                }
-            }
-            catch (Exception ex)
-            {
-                await CommonDialog.ShowErrorDialogAsync(ex);
-            }
-            finally
-            {
-                this.GetWindow().IsEnabled = true;
-            }
-        }
-
-        private void DeleteFileButton_Click(object sender, RoutedEventArgs e)
-        {
-            ViewModel.Inputs.Remove((sender as FrameworkElement).DataContext as InputArgumentsDetail);
-        }
     }
 }
diff --git a/SimpleFFmpegGUI.WPF/Panels/PresetsPanel.xaml b/SimpleFFmpegGUI.WPF/Panels/PresetsPanel.xaml
@@ -37,7 +37,7 @@
                         Cursor="Hand">
                         <Border.InputBindings>
                             <MouseBinding
-                                Command="{Binding DataContext.ApplyCommand, RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}}"
+                                Command="{Binding DataContext.ApplyCommand, Source={x:Reference root}}"
                                 CommandParameter="{Binding .}"
                                 MouseAction="LeftClick" />
                         </Border.InputBindings>

diff --git a/SimpleFFmpegGUI.WPF/Panels/PresetsPanel.xaml.cs b/SimpleFFmpegGUI.WPF/Panels/PresetsPanel.xaml.cs
@@ -30,7 +30,7 @@ public partial class PresetsPanel : UserControl
     {
         public PresetsPanel()
         {
-            DataContext = ViewModel = ViewModelBase.Bind<PresetsPanelViewModel>(this);
+            ViewModel = this.SetDataContext<PresetsPanelViewModel>();
             InitializeComponent();
         }