Imports DevExpress.ExpressApp

Public Class UserViewVariantsController
    Inherits ViewController
    'Private Const STR_HasViewVariants_EnabledKey As String = "HasViewVariants"
    'Private Const STR_IsRootViewVariant_EnabledKey As String = "IsRootViewVariant"
    'Private Const STR_NewViewVariant_Id As String = "NewViewVariant"
    'Private Const STR_DeleteViewVariant_Id As String = "DeleteViewVariant"
    'Private Const STR_EditViewVariant_Id As String = "EditViewVariant"
    'Private Const STR_UserViewVariants_Image As String = "Action_Copy"
    'Private Const STR_NewViewVariant_Image As String = "Action_New"
    'Private Const STR_DeleteViewVariant_Image As String = "Action_Delete"
    'Private Const STR_EditViewVariant_Image As String = "Action_Edit"
    'Private Const STR_UserViewVariants_Id As String = "UserViewVariants"

    'Private ReadOnly userViewVariantsCore As SingleChoiceAction
    ''Protected changeVariantMainWindowController As ChangeVariantMainWindowController
    'Protected changeVariantController As ChangeVariantController
    'Protected rootModelViewVariants As IModelList(Of IModelVariant)
    'Private modelViews As IModelList(Of IModelView)

    Public Sub New()
        'userViewVariantsCore = New SingleChoiceAction(Me, STR_UserViewVariants_Id, PredefinedCategory.View) With {.ImageName = STR_UserViewVariants_Image, .PaintStyle = ActionItemPaintStyle.CaptionAndImage, .Caption = CaptionHelper.ConvertCompoundName(STR_UserViewVariants_Id), .ItemType = SingleChoiceActionItemType.ItemIsOperation, .ShowItemsOnClick = True}
        'Dim addViewVariantItem As New ChoiceActionItem(STR_NewViewVariant_Id, CaptionHelper.ConvertCompoundName(STR_NewViewVariant_Id), STR_NewViewVariant_Id) With {.ImageName = STR_NewViewVariant_Image}
        'Dim removeViewVariantItem As New ChoiceActionItem(STR_DeleteViewVariant_Id, CaptionHelper.ConvertCompoundName(STR_DeleteViewVariant_Id), STR_DeleteViewVariant_Id) With {.ImageName = STR_DeleteViewVariant_Image}
        'Dim editViewVariantItem As New ChoiceActionItem(STR_EditViewVariant_Id, CaptionHelper.ConvertCompoundName(STR_EditViewVariant_Id), STR_EditViewVariant_Id) With {.ImageName = STR_EditViewVariant_Image}
        'userViewVariantsCore.Items.Add(addViewVariantItem)
        'userViewVariantsCore.Items.Add(editViewVariantItem)
        'userViewVariantsCore.Items.Add(removeViewVariantItem)
        'AddHandler userViewVariantsCore.Execute, AddressOf UserViewVariants_Execute
    End Sub
    '    Private Sub UserViewVariants_Execute(ByVal sender As Object, ByVal e As SingleChoiceActionExecuteEventArgs)
    '        UserViewVariants(e)
    '    End Sub
    '    Protected Overridable Sub UserViewVariants(ByVal e As SingleChoiceActionExecuteEventArgs)
    '        Dim data As String = Convert.ToString(e.SelectedChoiceActionItem.Data)
    '        If data = STR_NewViewVariant_Id OrElse data = STR_EditViewVariant_Id Then
    '            ShowViewVariantParameterDialog(e, data)
    '        ElseIf data = STR_DeleteViewVariant_Id Then
    '            DeleteViewVariant()
    '        End If
    '    End Sub
    '    Protected Overloads Overrides Sub OnActivated()
    '        MyBase.OnActivated()
    '        'Initialize()
    '        'UpdateUserViewVariantsAction()
    '    End Sub
    '    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
    '        'If disposing Then
    '        '    UnsubscribeFromEvents()
    '        'End If
    '        MyBase.Dispose(disposing)
    '    End Sub
    '    Private Sub UnsubscribeFromEvents()
    '        RemoveHandler userViewVariantsCore.Execute, AddressOf UserViewVariants_Execute
    '        If changeVariantController IsNot Nothing AndAlso changeVariantController.ChangeVariantAction IsNot Nothing Then
    '            RemoveHandler changeVariantController.ChangeVariantAction.Execute, AddressOf ChangeVariantAction_Executed
    '        End If
    '    End Sub
    '    Private Sub Initialize()
    '        changeVariantMainWindowController = Frame.GetController(Of ChangeVariantMainWindowController)()
    '        changeVariantController = Frame.GetController(Of ChangeVariantController)()
    '        AddHandler changeVariantController.ChangeVariantAction.Executed, AddressOf ChangeVariantAction_Executed
    '        modelViews = CType(View.Model.Application.Views, IModelList(Of IModelView))
    '        rootModelViewVariants = CType((CType(modelViews(GetRootViewId()), IModelViewVariants)).Variants, IModelList(Of IModelVariant))
    '    End Sub
    '    Private Sub ChangeVariantAction_Executed(ByVal sender As Object, ByVal e As ActionBaseEventArgs)
    '        UpdateUserViewVariantsAction()
    '    End Sub
    '    Private Function GetRootViewId() As String
    '        Dim variantsInfo As VariantsInfo = changeVariantMainWindowController.GetVariants(View)
    '        Return If(variantsInfo IsNot Nothing, variantsInfo.RootViewId, View.Id)
    '    End Function
    '    Protected Overridable Sub ShowViewVariantParameterDialog(ByVal e As SingleChoiceActionExecuteEventArgs, ByVal mode As String)
    '        Dim viewCaption As String = String.Empty
    '        Dim parameter As New ViewVariantParameterObject(rootModelViewVariants)
    '        If mode = STR_NewViewVariant_Id Then
    '            parameter.Caption = String.Format("{0}_{1:g}", View.Caption, DateTime.Now)
    '            viewCaption = CaptionHelper.GetLocalizedText("Texts", "NewViewVariantParameterCaption")
    '        End If
    '        If mode = STR_EditViewVariant_Id AndAlso changeVariantController.ChangeVariantAction.SelectedItem IsNot Nothing Then
    '            parameter.Caption = changeVariantController.ChangeVariantAction.SelectedItem.Caption
    '            viewCaption = CaptionHelper.GetLocalizedText("Texts", "EditViewVariantParameterCaption")
    '        End If
    '        Dim dialogController As DialogController = Application.CreateController(Of DialogController)()
    '        AddHandler dialogController.Accepting, AddressOf dialogController_Accepting
    '        dialogController.Tag = mode
    '        Dim dv As DetailView = Application.CreateDetailView(ObjectSpaceInMemory.CreateNew(), parameter, False)
    '        dv.ViewEditMode = ViewEditMode.Edit
    '        dv.Caption = viewCaption
    '        e.ShowViewParameters.CreatedView = dv
    '        e.ShowViewParameters.Controllers.Add(dialogController)
    '        e.ShowViewParameters.TargetWindow = TargetWindow.NewModalWindow
    '    End Sub
    '    Protected Sub dialogController_Accepting(ByVal sender As Object, ByVal e As DialogControllerAcceptingEventArgs)
    '        Dim dialogController As DialogController = CType(sender, DialogController)
    '        RemoveHandler dialogController.Accepting, AddressOf dialogController_Accepting
    '        Dim data As String = Convert.ToString(dialogController.Tag)
    '        Dim parameter As ViewVariantParameterObject = TryCast(dialogController.Window.View.CurrentObject, ViewVariantParameterObject)
    '        If data = STR_NewViewVariant_Id Then
    '            NewViewVariant(parameter)
    '        ElseIf data = STR_EditViewVariant_Id Then
    '            EditViewVariant(parameter)
    '        End If
    '    End Sub
    '    Protected Overridable Sub NewViewVariant(ByVal parameter As ViewVariantParameterObject)
    '        'It is necessary to save the current View settings into the application model before copying them.
    '        View.SynchronizeInfo()
    '        'Identifier of a new view variant will be based on the identifier of the root view variant.
    '        Dim newViewVariantId As String = String.Format("{0}_{1}", GetRootViewId(), Guid.NewGuid())
    '        ' Adds a new child node of the IModelVariant type with a specific identifier to the parent IModelViewVariants node.
    '        Dim newModelViewVariant As IModelVariant = (CType(rootModelViewVariants, ModelNode)).AddNode(Of IModelVariant)(newViewVariantId)
    '        ' Creates a new node of the IModelView type by cloning the settings of the current View and then sets the clone to the View property of the view variant created above.
    '        newModelViewVariant.View = TryCast((CType(modelViews, ModelNode)).AddClonedNode(CType(View.Model, ModelNode), newViewVariantId), IModelView)
    '        'Sets the Caption property of the view variant created above to the caption specified by an end-user in the dialog.
    '        newModelViewVariant.Caption = parameter.Caption
    '        'It is necessary to add a default view variant node for the current View for correct operation of the Change Variant Action.
    '        If rootModelViewVariants.Count = 1 Then
    '            Dim currentModelViewVariant As IModelVariant = (CType(rootModelViewVariants, ModelNode)).AddNode(Of IModelVariant)(View.Id)
    '            currentModelViewVariant.Caption = CaptionHelper.GetLocalizedText("Texts", "DefaultViewVariantCaption")
    '            currentModelViewVariant.View = View.Model
    '        End If
    '        'Updates the Change Variant Action structure based on the model customizations above.
    '        changeVariantController.RefreshVariantsAction()
    '        'Sets the current view variant to the newly created one.
    '        UpdateCurrentViewVariant(True)
    '        'Updates the items of our User View Variant Action based on the current the Change Variant Action structure. 
    '        UpdateUserViewVariantsAction()
    '    End Sub
    '    'This method does almost the same work as NewViewVariant, but in reverse order.
    '    Protected Overridable Sub DeleteViewVariant()
    '        Dim variantsInfo As VariantsInfo = GetVariantsInfo()
    '        'You should not be able to remove the root view variant.
    '        If variantsInfo IsNot Nothing AndAlso variantsInfo.CurrentVariantId <> GetRootViewId() Then
    '            UpdateCurrentViewVariant(False)
    '            rootModelViewVariants.Remove(rootModelViewVariants(variantsInfo.CurrentVariantId))
    '            modelViews.Remove(modelViews(variantsInfo.CurrentVariantId))
    '            changeVariantController.RefreshVariantsAction()
    '            UpdateUserViewVariantsAction()
    '        End If
    '        If rootModelViewVariants.Count = 1 Then
    '            CType(rootModelViewVariants, ModelNode).Undo()
    '        End If
    '    End Sub
    '    Protected Overridable Sub EditViewVariant(ByVal parameter As ViewVariantParameterObject)
    '        Dim variantsInfo As VariantsInfo = GetVariantsInfo()
    '        If variantsInfo IsNot Nothing Then
    '            rootModelViewVariants(variantsInfo.CurrentVariantId).Caption = parameter.Caption
    '        End If
    '        changeVariantController.RefreshVariantsAction()
    '    End Sub
    '    Private Sub UpdateCurrentViewVariant(ByVal isNew As Boolean)
    '        Dim action As SingleChoiceAction = changeVariantController.ChangeVariantAction
    '        If (Not isNew) AndAlso action.Items.Count > 1 Then
    '            action.DoExecute(action.Items(action.Items.Count - 2))
    '        End If
    '        If isNew AndAlso action.Items.Count > 0 Then
    '            action.DoExecute(action.Items(action.Items.Count - 1))
    '        End If
    '    End Sub
    '    Private Sub UpdateUserViewVariantsAction()
    '        Dim hasViewVariants As Boolean = changeVariantController.ChangeVariantAction.Items.Count > 0
    '        UserViewVarintsAction.Items.FindItemByID(STR_EditViewVariant_Id).Enabled(STR_HasViewVariants_EnabledKey) = hasViewVariants
    '        UserViewVarintsAction.Items.FindItemByID(STR_DeleteViewVariant_Id).Enabled(STR_HasViewVariants_EnabledKey) =
    'UserViewVarintsAction.Items.FindItemByID(STR_EditViewVariant_Id).Enabled(STR_HasViewVariants_EnabledKey)

    '        If changeVariantController.ChangeVariantAction.SelectedItem IsNot Nothing Then
    '            Dim variantInfo As VariantInfo = CType(changeVariantController.ChangeVariantAction.SelectedItem.Data, VariantInfo)
    '            UserViewVarintsAction.Items.FindItemByID(STR_DeleteViewVariant_Id).Enabled(STR_IsRootViewVariant_EnabledKey) = variantInfo.ViewID <> GetRootViewId()
    '        End If
    '    End Sub
    '    Private Function GetVariantsInfo() As VariantsInfo
    '        Return changeVariantMainWindowController.GetVariants(GetRootViewId())
    '    End Function
    '    Public ReadOnly Property UserViewVarintsAction() As SingleChoiceAction
    '        Get
    '            Return userViewVariantsCore
    '        End Get
    '    End Property
End Class