443 lines
15 KiB
C#
443 lines
15 KiB
C#
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using MainShell.Common;
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using MainShell.Models;
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using MainShell.Recipe.Models;
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using Newtonsoft.Json.Linq;
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using Stylet;
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using System;
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using System.Collections.ObjectModel;
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using System.IO;
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using System.Linq;
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namespace MainShell.Recipe.ViewModel
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{
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public abstract class RecipeViewModelBase<TRecipe> : BaseScreen, IRecipeViewModel
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where TRecipe : RecipeBase, new()
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{
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private string _lastSavedSnapshot = string.Empty;
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protected string LastSavedSnapshot => _lastSavedSnapshot;
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private bool _skipLeaveCheck;
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private RecipeWrap _selectedRecipeWrap;
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public ObservableCollection<RecipeWrap> RecipeWraps { get; protected set; } = new ObservableCollection<RecipeWrap>();
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public RecipeWrap SelectedRecipeWrap
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{
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get { return _selectedRecipeWrap; }
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set
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{
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if (_selectedRecipeWrap == value)
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return;
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if (!_skipLeaveCheck && _selectedRecipeWrap != null && value != null && !TryLeaveCurrentRecipeContext())
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{
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NotifyOfPropertyChange(() => SelectedRecipeWrap);
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return;
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}
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if (SetAndNotify(ref _selectedRecipeWrap, value))
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{
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LoadRecipeFromWrap(value);
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}
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}
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}
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public RecipeButtonGroupViewModel RecipeButtonGroupViewModel { get; protected set; }
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public virtual bool CanCopyRecipe => true;
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public virtual bool CanImportRecipe => false;
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public virtual bool CanExportRecipe => false;
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public bool HasUnsavedChanges => IsRecipeDirty();
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public string CurrentRecipeDisplayName => CurrentRecipe != null ? CurrentRecipe.RecipeName : EmptyRecipeDisplayName;
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public RecipeManager RecipeManager { get; }
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protected RecipeViewModelBase(RecipeManager recipeManager)
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{
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RecipeManager = recipeManager;
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}
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protected abstract TRecipe CurrentRecipe { get; set; }
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protected abstract string RecipeFolderPath { get; }
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protected abstract string EmptyRecipeDisplayName { get; }
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protected abstract string GetActiveRecipeName();
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protected abstract void SwitchActiveRecipe(string recipeName);
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protected abstract void ClearActiveRecipe();
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protected virtual void OnRecipeLoaded(TRecipe recipe, RecipeWrap recipeWrap) { }
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protected virtual string GetUnsavedChangesMessage() => $"<22>䷽<EFBFBD><E4B7BD>{CurrentRecipeDisplayName}<7D><><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD>ģ<DEB8><C4A3>Ƿ<EFBFBD><C7B7>ȱ<EFBFBD><C8B1>棿";
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protected virtual void AfterDeleteCurrentRecipe(string deletedRecipeName) { }
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protected virtual void AfterRecipeRenamed(string oldRecipeName, string newRecipeName) { }
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public virtual bool TryLeaveCurrentRecipeContext()
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{
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if (!HasUnsavedChanges)
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return true;
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var result = MwMessageBox.Show(GetUnsavedChangesMessage(), "δ<><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ", System.Windows.MessageBoxButton.YesNoCancel, System.Windows.MessageBoxImage.Warning);
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if (result == System.Windows.MessageBoxResult.Cancel)
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return false;
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if (result == System.Windows.MessageBoxResult.Yes)
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SaveCurrentRecipe(false);
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return true;
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}
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public void SaveCurrentRecipeSilently()
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{
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SaveCurrentRecipe(false);
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}
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protected void RegisterButtonGroupEvents()
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{
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RecipeButtonGroupViewModel = new RecipeButtonGroupViewModel();
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RecipeButtonGroupViewModel.CreateNewRequested -= OnCreateNewRecipe;
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RecipeButtonGroupViewModel.ApplyRequested -= OnApplyRecipe;
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RecipeButtonGroupViewModel.DeleteRequested -= OnDeleteRecipe;
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RecipeButtonGroupViewModel.CopyRequested -= OnCopyRecipe;
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RecipeButtonGroupViewModel.ImportRequested -= OnImportRecipe;
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RecipeButtonGroupViewModel.SaveRequested -= OnSaveRecipe;
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RecipeButtonGroupViewModel.ExportRequested -= OnExportRecipe;
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RecipeButtonGroupViewModel.ReNameRequested -= OnReNameRecipe;
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RecipeButtonGroupViewModel.ClearRequested -= OnClearRecipe;
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RecipeButtonGroupViewModel.CreateNewRequested += OnCreateNewRecipe;
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RecipeButtonGroupViewModel.ApplyRequested += OnApplyRecipe;
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RecipeButtonGroupViewModel.DeleteRequested += OnDeleteRecipe;
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RecipeButtonGroupViewModel.CopyRequested += OnCopyRecipe;
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RecipeButtonGroupViewModel.ImportRequested += OnImportRecipe;
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RecipeButtonGroupViewModel.SaveRequested += OnSaveRecipe;
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RecipeButtonGroupViewModel.ExportRequested += OnExportRecipe;
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RecipeButtonGroupViewModel.ReNameRequested += OnReNameRecipe;
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RecipeButtonGroupViewModel.ClearRequested += OnClearRecipe;
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}
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public virtual void OnCreateNewRecipe(object sender, EventArgs eventArgs)
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{
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if (eventArgs is RecipeEventArgs args)
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{
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if (!TryLeaveCurrentRecipeContext())
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return;
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var recipeWrap = new RecipeWrap
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{
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RecipeName = args.RecipeName,
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CreateTime = DateTime.UtcNow,
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ModifiedTime = DateTime.UtcNow,
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};
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RecipeWraps.Add(recipeWrap);
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SelectRecipeWrapInternal(recipeWrap);
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}
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}
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public virtual void OnDeleteRecipe(object sender, EventArgs eventArgs)
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{
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if (SelectedRecipeWrap == null)
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return;
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if (!TryLeaveCurrentRecipeContext())
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return;
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var deletedRecipeName = SelectedRecipeWrap.RecipeName;
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if (!RecipeManager.DeleteRecipeFolder(RecipeFolderPath, deletedRecipeName, out var error))
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{
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MwMessageBox.Show(error);
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return;
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}
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RecipeWraps.Remove(SelectedRecipeWrap);
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AfterDeleteCurrentRecipe(deletedRecipeName);
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if (RecipeWraps.Count > 0)
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{
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SelectRecipeWrapInternal(RecipeWraps[0]);
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}
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else
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{
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SelectedRecipeWrap = null;
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CurrentRecipe = null;
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ClearActiveRecipe();
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CaptureSavedSnapshot();
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}
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}
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public virtual void OnCopyRecipe(object sender, EventArgs eventArgs)
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{
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if (!(eventArgs is RecipeEventArgs args) || SelectedRecipeWrap == null)
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return;
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var sourceRecipeName = SelectedRecipeWrap.RecipeName;
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if (string.IsNullOrWhiteSpace(sourceRecipeName) || string.IsNullOrWhiteSpace(args.RecipeName))
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return;
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if (CurrentRecipe != null &&
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string.Equals(CurrentRecipe.RecipeName, sourceRecipeName, StringComparison.Ordinal) &&
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HasUnsavedChanges)
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{
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SaveCurrentRecipe(false);
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}
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if (!RecipeManager.CopyRecipeFolder(RecipeFolderPath, sourceRecipeName, args.RecipeName, out var error))
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{
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MwMessageBox.Show(error);
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return;
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}
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var copiedRecipeWrap = new RecipeWrap
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{
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RecipeName = args.RecipeName,
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CreateTime = DateTime.UtcNow,
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ModifiedTime = DateTime.UtcNow,
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};
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RecipeWraps.Add(copiedRecipeWrap);
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SelectRecipeWrapInternal(copiedRecipeWrap);
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}
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public virtual void OnApplyRecipe(object sender, EventArgs eventArgs)
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{
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if (eventArgs is RecipeEventArgs args)
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{
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var recipeWrap = RecipeWraps.FirstOrDefault(p => p.RecipeName == args.RecipeName);
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if (recipeWrap == null)
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return;
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if (!ReferenceEquals(SelectedRecipeWrap, recipeWrap))
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{
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if (!TryLeaveCurrentRecipeContext())
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return;
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SelectRecipeWrapInternal(recipeWrap);
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}
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if (SelectedRecipeWrap == null)
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return;
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if (CurrentRecipe != null && IsRecipeDirty())
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{
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SaveCurrentRecipe(false);
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}
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SwitchActiveRecipe(SelectedRecipeWrap.RecipeName);
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UpdateInUseState(SelectedRecipeWrap);
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}
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}
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public abstract void OnImportRecipe(object sender, EventArgs eventArgs);
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public virtual void OnSaveRecipe(object sender, EventArgs eventArgs)
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{
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CommonUti.RunOnUi(() =>
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{
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if (eventArgs is RecipeEventArgs)
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{
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SaveCurrentRecipe(true);
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}
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});
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}
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public abstract void OnExportRecipe(object sender, EventArgs eventArgs);
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public abstract void OnReNameRecipe(object sender, EventArgs eventArgs);
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public virtual void OnClearRecipe(object sender, EventArgs eventArgs)
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{
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if (!TryLeaveCurrentRecipeContext())
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return;
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if (SelectedRecipeWrap == null)
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return;
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var clearedRecipe = new TRecipe
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{
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RecipeName = SelectedRecipeWrap.RecipeName
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};
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CurrentRecipe = clearedRecipe;
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OnRecipeLoaded(clearedRecipe, SelectedRecipeWrap);
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NotifyOfPropertyChange(() => HasUnsavedChanges);
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}
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protected bool IsRecipeDirty()
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{
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if (CurrentRecipe == null)
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return false;
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var path = Path.Combine(CurrentRecipe.Dir ?? string.Empty, CurrentRecipe.FileName ?? string.Empty);
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if (!File.Exists(path))
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return true;
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return !AreSnapshotsEquivalent(_lastSavedSnapshot, CurrentRecipe.CreateSnapshot());
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}
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protected void CaptureSavedSnapshot()
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{
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_lastSavedSnapshot = CurrentRecipe != null ? CurrentRecipe.CreateSnapshot() : string.Empty;
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NotifyOfPropertyChange(() => HasUnsavedChanges);
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NotifyOfPropertyChange(() => CurrentRecipeDisplayName);
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}
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protected bool TryRenameRecipe(RecipeRenameEventArgs args)
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{
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if (args == null)
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return false;
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var recipeWrap = RecipeWraps.FirstOrDefault(p => p.RecipeName == args.OldRecipeName);
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if (recipeWrap == null)
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return false;
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if (!RecipeManager.RenameFolder(RecipeFolderPath, args.OldRecipeName, args.NewRecipeName, out var error))
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{
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MwMessageBox.Show(error);
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return false;
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}
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recipeWrap.RecipeName = args.NewRecipeName;
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recipeWrap.ModifiedTime = DateTime.UtcNow;
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if (CurrentRecipe != null && string.Equals(CurrentRecipe.RecipeName, args.OldRecipeName, StringComparison.Ordinal))
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{
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CurrentRecipe.RecipeName = args.NewRecipeName;
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}
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if (ReferenceEquals(recipeWrap, SelectedRecipeWrap))
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{
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SwitchActiveRecipe(args.NewRecipeName);
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}
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CaptureSavedSnapshot();
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AfterRecipeRenamed(args.OldRecipeName, args.NewRecipeName);
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return true;
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}
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protected void SaveCurrentRecipe(bool showSuccessMessage)
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{
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if (CurrentRecipe == null)
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return;
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CurrentRecipe.Write();
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CaptureSavedSnapshot();
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if (SelectedRecipeWrap != null)
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{
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SelectedRecipeWrap.ModifiedTime = DateTime.UtcNow;
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}
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if (showSuccessMessage)
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{
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MwMessageBox.Show("<22><><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>");
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}
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}
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private static bool AreSnapshotsEquivalent(string leftSnapshot, string rightSnapshot)
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{
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var left = string.IsNullOrWhiteSpace(leftSnapshot) ? null : ParseSnapshotToken(leftSnapshot);
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var right = string.IsNullOrWhiteSpace(rightSnapshot) ? null : ParseSnapshotToken(rightSnapshot);
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if (left == null || right == null)
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return false;
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return JToken.DeepEquals(left, right);
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}
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private static JToken ParseSnapshotToken(string snapshot)
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{
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try
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{
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return JToken.Parse(snapshot);
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}
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catch
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{
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return null;
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}
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}
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protected void SelectRecipeWrapInternal(RecipeWrap recipeWrap)
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{
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try
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{
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_skipLeaveCheck = true;
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SelectedRecipeWrap = recipeWrap;
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}
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finally
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{
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_skipLeaveCheck = false;
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}
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}
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protected void InitializeSelection(string activeRecipeName)
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{
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SyncSelection(activeRecipeName, true);
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}
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protected virtual void UpdateInUseState(RecipeWrap activeRecipeWrap)
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{
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foreach (var wrap in RecipeWraps)
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{
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wrap.IsInUse = ReferenceEquals(wrap, activeRecipeWrap);
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}
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}
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|
|||
|
|
public void SyncSelectionFromActiveRecipe()
|
|||
|
|
{
|
|||
|
|
SyncSelection(GetActiveRecipeName(), false);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void SyncSelection(string recipeName, bool fallbackToFirst)
|
|||
|
|
{
|
|||
|
|
if (RecipeWraps == null || RecipeWraps.Count == 0)
|
|||
|
|
{
|
|||
|
|
UpdateInUseState(null);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var target = string.IsNullOrWhiteSpace(recipeName)
|
|||
|
|
? null
|
|||
|
|
: RecipeWraps.FirstOrDefault(p => string.Equals(p.RecipeName, recipeName, StringComparison.Ordinal));
|
|||
|
|
|
|||
|
|
if (target == null)
|
|||
|
|
{
|
|||
|
|
UpdateInUseState(null);
|
|||
|
|
if (!fallbackToFirst)
|
|||
|
|
return;
|
|||
|
|
|
|||
|
|
target = RecipeWraps[0];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (ReferenceEquals(SelectedRecipeWrap, target))
|
|||
|
|
{
|
|||
|
|
UpdateInUseState(target);
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
SelectRecipeWrapInternal(target);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void LoadRecipeFromWrap(RecipeWrap recipeWrap)
|
|||
|
|
{
|
|||
|
|
if (recipeWrap == null)
|
|||
|
|
{
|
|||
|
|
UpdateInUseStateByActiveRecipe();
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var newRecipe = new TRecipe
|
|||
|
|
{
|
|||
|
|
RecipeName = recipeWrap.RecipeName
|
|||
|
|
};
|
|||
|
|
newRecipe.Read();
|
|||
|
|
|
|||
|
|
CurrentRecipe = newRecipe;
|
|||
|
|
CaptureSavedSnapshot();
|
|||
|
|
UpdateInUseStateByActiveRecipe();
|
|||
|
|
OnRecipeLoaded(newRecipe, recipeWrap);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void UpdateInUseStateByActiveRecipe()
|
|||
|
|
{
|
|||
|
|
var activeRecipeName = GetActiveRecipeName();
|
|||
|
|
var activeRecipeWrap = RecipeWraps == null || string.IsNullOrWhiteSpace(activeRecipeName)
|
|||
|
|
? null
|
|||
|
|
: RecipeWraps.FirstOrDefault(p => string.Equals(p.RecipeName, activeRecipeName, StringComparison.Ordinal));
|
|||
|
|
|
|||
|
|
UpdateInUseState(activeRecipeWrap);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|