Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / View / ImportDesigner.xaml.cs / 1477082 / ImportDesigner.xaml.cs
//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//---------------------------------------------------------------
namespace System.Activities.Presentation.View
{
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Globalization;
using System.Reflection;
using System.Runtime;
using System.Activities.Presentation.Hosting;
using System.Activities.Presentation.Model;
using System.Activities.Presentation.Services;
using System.Collections.Specialized;
using System.IO;
using Microsoft.VisualBasic.Activities;
partial class ImportDesigner
{
public static readonly DependencyProperty ContextProperty = DependencyProperty.Register(
"Context",
typeof(EditingContext),
typeof(ImportDesigner),
new FrameworkPropertyMetadata(null, new PropertyChangedCallback(OnContextChanged)));
const string ErrorMessagePropertyName = "ErrorMessage";
const string IsInvalidPropertyName = "IsInvalid";
public EditingContext Context
{
get { return (EditingContext)GetValue(ContextProperty); }
set { SetValue(ContextProperty, value); }
}
TextBox textBox;
bool isSetInternally;
bool causedBySelectionChange;
bool isSelectedByMouse;
string lastInput;
int lastCursePosition;
bool firstShowUp;
string importsHintText;
ModelItem lastSelection;
SubscribeContextCallback onItemSelectedCallback;
bool isSelectionChangedInternally;
ImportedNamespaceContextItem importedNamespacesItem;
ModelItemCollection importsModelItem;
IDictionary> availableNamespaces;
IDictionary> attachedPropertiesForNamespace = new Dictionary>();
public ImportDesigner()
{
InitializeComponent();
this.firstShowUp = true;
this.importsHintText = (string)this.FindResource("importsHintText");
}
SubscribeContextCallback OnItemSelectedCallback
{
get
{
if (this.onItemSelectedCallback == null)
{
this.onItemSelectedCallback = new SubscribeContextCallback(this.OnItemSelected);
}
return this.onItemSelectedCallback;
}
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.Unloaded += OnImportDesignerUnloaded;
}
void OnImportDesignerUnloaded(object sender, RoutedEventArgs e)
{
this.importsModelItem.CollectionChanged -= this.OnImportsModelItemCollectionChanged;
this.Unloaded -= this.OnImportDesignerUnloaded;
}
void OnInputComboBoxUnloaded(object sender, RoutedEventArgs e)
{
this.inputComboBox.Loaded -= this.OnInputComboBoxLoaded;
this.inputComboBox.SelectionChanged -= OnComboBoxSelectionChanged;
this.inputComboBox.Unloaded -= OnInputComboBoxUnloaded;
Fx.Assert(this.textBox != null, "ComboBox should contains a child of TextBox");
textBox.TextChanged -= OnTextChanged;
textBox.PreviewKeyUp -= OnPreviewKeyUp;
textBox.IsKeyboardFocusedChanged -= OnTextBoxIsKeyboardFocusedChanged;
AppDomain.CurrentDomain.AssemblyLoad -= this.OnAssemblyLoad;
}
void OnInputComboBoxLoaded(object sender, RoutedEventArgs e)
{
this.textBox = this.inputComboBox.Template.FindName("PART_EditableTextBox", this.inputComboBox) as TextBox;
this.textBox.TextChanged += new TextChangedEventHandler(OnTextChanged);
this.textBox.PreviewKeyUp += new KeyEventHandler(OnPreviewKeyUp);
this.textBox.IsKeyboardFocusedChanged += new DependencyPropertyChangedEventHandler(OnTextBoxIsKeyboardFocusedChanged);
this.textBox.IsUndoEnabled = false;
this.isSetInternally = true;
this.textBox.Foreground = SystemColors.GrayTextBrush;
this.textBox.FontStyle = FontStyles.Italic;
this.textBox.Text = this.importsHintText;
this.isSetInternally = false;
this.inputComboBox.SelectionChanged += new SelectionChangedEventHandler(OnComboBoxSelectionChanged);
}
void OnTextBoxIsKeyboardFocusedChanged(object sender, DependencyPropertyChangedEventArgs e)
{
TextBox inputTextBox = sender as TextBox;
Fx.Assert(inputTextBox != null, "Sender of IsKeyboardFocusedChanged event should be a TextBox");
if ((bool)e.NewValue == true)
{
this.isSetInternally = true;
inputTextBox.FontStyle = FontStyles.Normal;
inputTextBox.Foreground = SystemColors.ControlTextBrush;
if (inputTextBox.Text == this.importsHintText)
{
inputTextBox.Text = string.Empty;
inputTextBox.CaretIndex = 0;
}
this.isSetInternally = false;
}
else if (string.IsNullOrEmpty(inputTextBox.Text))
{
this.isSetInternally = true;
inputTextBox.Text = this.importsHintText;
inputTextBox.Foreground = SystemColors.GrayTextBrush;
inputTextBox.FontStyle = FontStyles.Italic;
this.isSetInternally = false;
}
}
protected override void OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs e)
{
IIntegratedHelpService helpService = this.Context.Services.GetService();
if (helpService != null)
{
if ((Boolean)e.NewValue)
{
this.isSelectionChangedInternally = true;
this.Context.Items.SetValue(new Selection());
this.isSelectionChangedInternally = false;
helpService.AddContextAttribute(string.Empty, WorkflowViewManager.GetF1HelpTypeKeyword(typeof(ImportDesigner)), System.ComponentModel.Design.HelpKeywordType.F1Keyword);
}
else
{
helpService.RemoveContextAttribute(string.Empty, WorkflowViewManager.GetF1HelpTypeKeyword(typeof(ImportDesigner)));
}
}
base.OnIsKeyboardFocusWithinChanged(e);
}
void OnVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (bool.Equals(true, e.NewValue))
{
StoreLastSelection();
this.Context.Items.Subscribe(this.OnItemSelectedCallback);
if (this.firstShowUp)
{
this.firstShowUp = false;
this.inputComboBox.Loaded += this.OnInputComboBoxLoaded;
this.inputComboBox.Unloaded += this.OnInputComboBoxUnloaded;
this.inputComboBox.ItemsSource = this.availableNamespaces.Keys;
this.inputComboBox.Items.SortDescriptions.Add(new SortDescription("", ListSortDirection.Ascending));
this.inputComboBox.Items.Filter += this.FilterPredicate;
this.importedNamespacesDataGrid.Items.SortDescriptions.Add(new SortDescription(NamespaceListPropertyDescriptor.NamespacePropertyName, ListSortDirection.Ascending));
this.importedNamespacesDataGrid.ItemsSource = this.importsModelItem;
this.importedNamespacesDataGrid.SelectionChanged += this.OnImportedNamespacesDataGridSelectionChanged;
}
}
else
{
RestoreLastSelection();
this.Context.Items.Unsubscribe(this.OnItemSelectedCallback);
}
}
void RestoreLastSelection()
{
if ((this.Context != null) && (this.lastSelection != null))
{
this.Context.Items.SetValue(new Selection(this.lastSelection));
}
}
void StoreLastSelection()
{
if (this.Context != null)
{
this.lastSelection = this.Context.Items.GetValue().PrimarySelection;
}
}
void OnImportedNamespacesDataGridSelectionChanged(object sender, SelectionChangedEventArgs e)
{
DataGrid importsDataGrid = sender as DataGrid;
importsDataGrid.CanUserDeleteRows = true;
foreach (object item in importsDataGrid.SelectedItems)
{
ModelItem import = item as ModelItem;
if ((import != null) && !((bool)import.Properties[IsInvalidPropertyName].ComputedValue))
{
importsDataGrid.CanUserDeleteRows = false;
break;
}
}
}
void CommitImportNamespace(string addedNamespace)
{
ModelItem importItem;
if (!TryGetWrapper(addedNamespace, out importItem))
{
NamespaceData newImport = new NamespaceData { Namespace = addedNamespace };
importItem = this.importsModelItem.Add(newImport);
}
this.importedNamespacesDataGrid.SelectedItem = importItem;
this.importedNamespacesDataGrid.ScrollIntoView(importItem);
this.textBox.Text = string.Empty;
}
void OnPreviewKeyUp(object sender, KeyEventArgs args)
{
switch (args.Key)
{
case Key.Enter:
if (this.inputComboBox.SelectedItem != null)
{
CommitImportNamespace(this.inputComboBox.SelectedItem.ToString());
}
break;
case Key.Down:
if (!this.inputComboBox.IsDropDownOpen)
{
this.inputComboBox.IsDropDownOpen = true;
}
break;
default: break;
}
}
bool TryGetWrapper(string imported, out ModelItem importItem)
{
importItem = null;
foreach (ModelItem item in this.importsModelItem)
{
NamespaceData importedNamespace = item.GetCurrentValue() as NamespaceData;
Fx.Assert(importedNamespace != null, "element of import list model has to be NamespaceData");
if (importedNamespace.Namespace == imported)
{
importItem = item;
return true;
}
}
return false;
}
void OnImportsModelItemCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (ModelItem namespaceModel in e.NewItems)
{
ValidateNamespaceModelAndUpdateContextItem(namespaceModel);
}
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (ModelItem namespaceModel in e.OldItems)
{
NamespaceData namespaceData = namespaceModel.GetCurrentValue() as NamespaceData;
Fx.Assert(namespaceData != null, "added item has to be NamespaceData");
this.importedNamespacesItem.ImportedNamespaces.Remove(namespaceData.Namespace);
this.attachedPropertiesForNamespace.Remove(namespaceData.Namespace);
}
}
UpdateExpressionEditors();
}
private void ValidateNamespaceModelAndUpdateContextItem(ModelItem namespaceModel)
{
NamespaceData namespaceData = namespaceModel.GetCurrentValue() as NamespaceData;
Fx.Assert(namespaceData != null, "added item has to be NamespaceData");
if (!this.availableNamespaces.ContainsKey(namespaceData.Namespace))
{
namespaceModel.Properties[ErrorMessagePropertyName].SetValue(string.Format(CultureInfo.CurrentCulture, SR.CannotResolveNamespace, namespaceData.Namespace));
namespaceModel.Properties[IsInvalidPropertyName].SetValue(true);
}
else
{
namespaceModel.Properties[ErrorMessagePropertyName].SetValue(string.Empty);
namespaceModel.Properties[IsInvalidPropertyName].SetValue(false);
this.importedNamespacesItem.ImportedNamespaces.Add(namespaceData.Namespace);
}
}
private void UpdateExpressionEditors()
{
AssemblyContextControlItem assemblies = this.Context.Items.GetValue();
IExpressionEditorService expressionEditorService = this.Context.Services.GetService();
if (expressionEditorService != null)
{
expressionEditorService.UpdateContext(assemblies, this.importedNamespacesItem);
}
}
void OnComboBoxSelectionChanged(object sender, SelectionChangedEventArgs args)
{
if (!this.isSetInternally)
{
if (this.isSelectedByMouse)
{
CommitImportNamespace(this.inputComboBox.SelectedItem.ToString());
this.isSelectedByMouse = false;
}
else
{
this.causedBySelectionChange = true;
}
}
}
bool FilterPredicate(object value)
{
// We don't like nulls.
if (value == null)
return false;
if (string.IsNullOrEmpty(this.lastInput))
return true;
return value.ToString().StartsWith(this.lastInput, StringComparison.OrdinalIgnoreCase);
}
void OnTextChanged(object sender, TextChangedEventArgs args)
{
if (!this.isSetInternally)
{
this.lastInput = this.textBox.Text;
this.lastCursePosition = this.textBox.CaretIndex;
this.isSetInternally = true;
if (this.causedBySelectionChange)
{
this.causedBySelectionChange = false;
}
else
{
Fx.Assert(this.inputComboBox.ItemsSource != null, "combo box's source must already be initialized when textbox is running");
CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource).Refresh();
if (this.lastInput.Length > 0)
{
this.inputComboBox.IsDropDownOpen = true;
foreach (object item in CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource))
{
this.inputComboBox.SelectedItem = null;
this.inputComboBox.SelectedItem = item;
break;
}
}
else
{
this.inputComboBox.IsDropDownOpen = false;
this.inputComboBox.SelectedItem = null;
}
}
this.textBox.Text = this.lastInput;
this.textBox.CaretIndex = this.lastCursePosition;
this.isSetInternally = false;
}
}
void OnMouseLeftClickComboBoxItem(object sender, MouseButtonEventArgs e)
{
ComboBoxItem comboBoxItem = sender as ComboBoxItem;
if (comboBoxItem != null)
{
this.isSetInternally = true;
string userInput = this.textBox.Text;
this.inputComboBox.SelectedItem = null;
this.textBox.Text = userInput;
this.isSetInternally = false;
this.isSelectedByMouse = true;
}
}
static void OnContextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
((ImportDesigner)sender).OnContextChanged();
}
void OnContextChanged()
{
AttachedPropertiesService attachedPropertyService = this.Context.Services.GetService();
Fx.Assert(attachedPropertyService != null, "AttachedPropertiesService shouldn't be null in EditingContext.");
attachedPropertyService.AddProperty(CreateAttachedPropertyForNamespace(ErrorMessagePropertyName));
attachedPropertyService.AddProperty(CreateAttachedPropertyForNamespace(IsInvalidPropertyName));
//clear any defaults because it's meant to be set by host and not serialized to XAML
VisualBasicSettings.Default.ImportReferences.Clear();
ModelService modelService = this.Context.Services.GetService();
Fx.Assert(modelService != null, "ModelService shouldn't be null in EditingContext.");
Fx.Assert(modelService.Root != null, "model must have a root");
this.importsModelItem = modelService.Root.Properties[NamespaceListPropertyDescriptor.ImportCollectionPropertyName].Collection;
Fx.Assert(this.importsModelItem != null, "root must have imports");
this.importsModelItem.CollectionChanged += this.OnImportsModelItemCollectionChanged;
this.importedNamespacesItem = this.Context.Items.GetValue();
this.importedNamespacesItem.EnsureInitialized(this.Context);
if (this.availableNamespaces == null)
{
//change to available namespace should not be a model change so we access the dictionary directly
this.availableNamespaces = this.importsModelItem.Properties[NamespaceListPropertyDescriptor.AvailableNamespacesPropertyName].ComputedValue as Dictionary>;
Fx.Assert(this.availableNamespaces != null, "Available namespace dictionary is not in right format");
}
RefreshNamespaces();
}
void OnItemSelected(Selection newSelection)
{
if ((!this.Context.Services.GetService().IsUndoRedoInProgress) && (!this.isSelectionChangedInternally))
{
StoreLastSelection();
}
}
AttachedProperty CreateAttachedPropertyForNamespace(string propertyName)
{
return new AttachedProperty
{
Getter = (modelItem) =>
{
NamespaceData data = modelItem.GetCurrentValue() as NamespaceData;
if (data == null)
{
return default(T);
}
IDictionary properties;
if (!this.attachedPropertiesForNamespace.TryGetValue(data.Namespace, out properties))
{
return default(T);
}
object propertyValue;
if (!properties.TryGetValue(propertyName, out propertyValue))
{
return default(T);
}
return (T)propertyValue;
},
Setter = (modelItem, propertyValue) =>
{
NamespaceData data = modelItem.GetCurrentValue() as NamespaceData;
if (data == null)
{
return;
}
IDictionary properties;
if (!this.attachedPropertiesForNamespace.TryGetValue(data.Namespace, out properties))
{
properties = new Dictionary();
this.attachedPropertiesForNamespace[data.Namespace] = properties;
}
properties[propertyName] = propertyValue;
},
Name = propertyName,
OwnerType = typeof(NamespaceData),
IsBrowsable = true,
};
}
private void RefreshNamespaces()
{
GetAvailabeNamespaces();
ValidateImportedNamespaces();
}
internal void OnReferenceUpdated(AssemblyName updatedReference, bool isAdded)
{
if (this.availableNamespaces != null)
{
Assembly assembly = Assembly.Load(updatedReference);
OnReferenceUpdated(assembly, isAdded);
}
}
internal void OnReferenceUpdated(Assembly assembly, bool isAdded)
{
if (this.availableNamespaces != null)
{
string name = assembly.GetName().Name;
if (isAdded)
{
try
{
foreach (Type type in assembly.GetTypes())
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (!this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList = new List { name };
this.availableNamespaces.Add (ns, assemblyList);
}
if (!assemblyList.Contains(name))
{
assemblyList.Add(name);
}
}
}
}
catch (FileNotFoundException)
{
}
}
else
{
try
{
foreach (Type type in assembly.GetTypes())
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList.Remove (name);
if (assemblyList.Count == 0)
{
this.availableNamespaces.Remove(ns);
}
}
}
}
}
catch (FileNotFoundException)
{
//If removed reference assemlby is not there anymore, scan new list of referenced assemblies and refresh the list
this.GetAvailabeNamespaces();
}
}
if (this.inputComboBox.ItemsSource != null)
{
CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource).Refresh();
}
ValidateImportedNamespaces();
}
}
void GetAvailabeNamespaces()
{
Fx.Assert(this.availableNamespaces != null, "available namespace table should have been set before calling this method");
AssemblyContextControlItem assemblyItem = this.Context.Items.GetValue();
if (assemblyItem != null)
{
IMultiTargetingSupportService multiTargetingService = this.Context.Services.GetService();
IEnumerable allAssemblies = assemblyItem.GetEnvironmentAssemblies(multiTargetingService);
if (assemblyItem.LocalAssemblyName != null)
{
allAssemblies = allAssemblies.Union(new Collection {
AssemblyContextControlItem.GetAssembly(assemblyItem.LocalAssemblyName, multiTargetingService)
});
}
foreach (Assembly assembly in allAssemblies)
{
try
{
if (assembly != null)
{
Fx.Assert(!assembly.IsDynamic, "there should not be any dynamic assemblies in reference list");
//we should only display namespaces for public types except the local assembly
IEnumerable types = null;
if ((assemblyItem.LocalAssemblyName != null) && (assembly.FullName == assemblyItem.LocalAssemblyName.FullName))
{
types = assembly.GetTypes();
}
else
{
types = assembly.GetExportedTypes();
}
if (types != null)
{
string assemblyName = assembly.GetName().Name;
foreach (Type type in types)
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (!this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList = new List { assemblyName };
this.availableNamespaces.Add (ns, assemblyList);
}
if (!assemblyList.Contains(assemblyName))
{
assemblyList.Add (assemblyName);
}
}
}
}
}
}
catch (ReflectionTypeLoadException)
{
}
catch (FileNotFoundException)
{
}
}
if (assemblyItem.LocalAssemblyName == null)
{
AppDomain.CurrentDomain.AssemblyLoad += OnAssemblyLoad;
}
}
}
void OnAssemblyLoad(object sender, AssemblyLoadEventArgs args)
{
if (!args.LoadedAssembly.IsDynamic)
{
OnReferenceUpdated(args.LoadedAssembly, true);
}
}
void ValidateImportedNamespaces()
{
this.importedNamespacesItem.ImportedNamespaces.Clear();
foreach (ModelItem namespaceModel in this.importsModelItem)
{
ValidateNamespaceModelAndUpdateContextItem(namespaceModel);
}
UpdateExpressionEditors();
}
//Helper function used by other components if need to update import context item
public static void AddImport(string importedNamespace, EditingContext editingContext)
{
//For types defined without any namespace, Type.Namespace is null instead of empty. We don't need to add any namespace to Import list in this case
if (string.IsNullOrEmpty (importedNamespace))
{
return;
}
Fx.Assert(editingContext != null, "EditingContext shouldn't be null.");
ModelService modelService = editingContext.Services.GetService();
Fx.Assert(modelService != null, "EditingContext should contains ModelService.");
ModelItemCollection importsCollection = modelService.Root.Properties[NamespaceListPropertyDescriptor.ImportCollectionPropertyName].Collection;
NamespaceList namespaceList = importsCollection.GetCurrentValue() as NamespaceList;
if (namespaceList.Lookup(importedNamespace) == -1)
{
importsCollection.Add(new NamespaceData { Namespace = importedNamespace });
}
else
{
namespaceList.UpdateAssemblyInfo(importedNamespace);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//---------------------------------------------------------------
namespace System.Activities.Presentation.View
{
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Globalization;
using System.Reflection;
using System.Runtime;
using System.Activities.Presentation.Hosting;
using System.Activities.Presentation.Model;
using System.Activities.Presentation.Services;
using System.Collections.Specialized;
using System.IO;
using Microsoft.VisualBasic.Activities;
partial class ImportDesigner
{
public static readonly DependencyProperty ContextProperty = DependencyProperty.Register(
"Context",
typeof(EditingContext),
typeof(ImportDesigner),
new FrameworkPropertyMetadata(null, new PropertyChangedCallback(OnContextChanged)));
const string ErrorMessagePropertyName = "ErrorMessage";
const string IsInvalidPropertyName = "IsInvalid";
public EditingContext Context
{
get { return (EditingContext)GetValue(ContextProperty); }
set { SetValue(ContextProperty, value); }
}
TextBox textBox;
bool isSetInternally;
bool causedBySelectionChange;
bool isSelectedByMouse;
string lastInput;
int lastCursePosition;
bool firstShowUp;
string importsHintText;
ModelItem lastSelection;
SubscribeContextCallback onItemSelectedCallback;
bool isSelectionChangedInternally;
ImportedNamespaceContextItem importedNamespacesItem;
ModelItemCollection importsModelItem;
IDictionary> availableNamespaces;
IDictionary> attachedPropertiesForNamespace = new Dictionary>();
public ImportDesigner()
{
InitializeComponent();
this.firstShowUp = true;
this.importsHintText = (string)this.FindResource("importsHintText");
}
SubscribeContextCallback OnItemSelectedCallback
{
get
{
if (this.onItemSelectedCallback == null)
{
this.onItemSelectedCallback = new SubscribeContextCallback(this.OnItemSelected);
}
return this.onItemSelectedCallback;
}
}
protected override void OnInitialized(EventArgs e)
{
base.OnInitialized(e);
this.Unloaded += OnImportDesignerUnloaded;
}
void OnImportDesignerUnloaded(object sender, RoutedEventArgs e)
{
this.importsModelItem.CollectionChanged -= this.OnImportsModelItemCollectionChanged;
this.Unloaded -= this.OnImportDesignerUnloaded;
}
void OnInputComboBoxUnloaded(object sender, RoutedEventArgs e)
{
this.inputComboBox.Loaded -= this.OnInputComboBoxLoaded;
this.inputComboBox.SelectionChanged -= OnComboBoxSelectionChanged;
this.inputComboBox.Unloaded -= OnInputComboBoxUnloaded;
Fx.Assert(this.textBox != null, "ComboBox should contains a child of TextBox");
textBox.TextChanged -= OnTextChanged;
textBox.PreviewKeyUp -= OnPreviewKeyUp;
textBox.IsKeyboardFocusedChanged -= OnTextBoxIsKeyboardFocusedChanged;
AppDomain.CurrentDomain.AssemblyLoad -= this.OnAssemblyLoad;
}
void OnInputComboBoxLoaded(object sender, RoutedEventArgs e)
{
this.textBox = this.inputComboBox.Template.FindName("PART_EditableTextBox", this.inputComboBox) as TextBox;
this.textBox.TextChanged += new TextChangedEventHandler(OnTextChanged);
this.textBox.PreviewKeyUp += new KeyEventHandler(OnPreviewKeyUp);
this.textBox.IsKeyboardFocusedChanged += new DependencyPropertyChangedEventHandler(OnTextBoxIsKeyboardFocusedChanged);
this.textBox.IsUndoEnabled = false;
this.isSetInternally = true;
this.textBox.Foreground = SystemColors.GrayTextBrush;
this.textBox.FontStyle = FontStyles.Italic;
this.textBox.Text = this.importsHintText;
this.isSetInternally = false;
this.inputComboBox.SelectionChanged += new SelectionChangedEventHandler(OnComboBoxSelectionChanged);
}
void OnTextBoxIsKeyboardFocusedChanged(object sender, DependencyPropertyChangedEventArgs e)
{
TextBox inputTextBox = sender as TextBox;
Fx.Assert(inputTextBox != null, "Sender of IsKeyboardFocusedChanged event should be a TextBox");
if ((bool)e.NewValue == true)
{
this.isSetInternally = true;
inputTextBox.FontStyle = FontStyles.Normal;
inputTextBox.Foreground = SystemColors.ControlTextBrush;
if (inputTextBox.Text == this.importsHintText)
{
inputTextBox.Text = string.Empty;
inputTextBox.CaretIndex = 0;
}
this.isSetInternally = false;
}
else if (string.IsNullOrEmpty(inputTextBox.Text))
{
this.isSetInternally = true;
inputTextBox.Text = this.importsHintText;
inputTextBox.Foreground = SystemColors.GrayTextBrush;
inputTextBox.FontStyle = FontStyles.Italic;
this.isSetInternally = false;
}
}
protected override void OnIsKeyboardFocusWithinChanged(DependencyPropertyChangedEventArgs e)
{
IIntegratedHelpService helpService = this.Context.Services.GetService();
if (helpService != null)
{
if ((Boolean)e.NewValue)
{
this.isSelectionChangedInternally = true;
this.Context.Items.SetValue(new Selection());
this.isSelectionChangedInternally = false;
helpService.AddContextAttribute(string.Empty, WorkflowViewManager.GetF1HelpTypeKeyword(typeof(ImportDesigner)), System.ComponentModel.Design.HelpKeywordType.F1Keyword);
}
else
{
helpService.RemoveContextAttribute(string.Empty, WorkflowViewManager.GetF1HelpTypeKeyword(typeof(ImportDesigner)));
}
}
base.OnIsKeyboardFocusWithinChanged(e);
}
void OnVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (bool.Equals(true, e.NewValue))
{
StoreLastSelection();
this.Context.Items.Subscribe(this.OnItemSelectedCallback);
if (this.firstShowUp)
{
this.firstShowUp = false;
this.inputComboBox.Loaded += this.OnInputComboBoxLoaded;
this.inputComboBox.Unloaded += this.OnInputComboBoxUnloaded;
this.inputComboBox.ItemsSource = this.availableNamespaces.Keys;
this.inputComboBox.Items.SortDescriptions.Add(new SortDescription("", ListSortDirection.Ascending));
this.inputComboBox.Items.Filter += this.FilterPredicate;
this.importedNamespacesDataGrid.Items.SortDescriptions.Add(new SortDescription(NamespaceListPropertyDescriptor.NamespacePropertyName, ListSortDirection.Ascending));
this.importedNamespacesDataGrid.ItemsSource = this.importsModelItem;
this.importedNamespacesDataGrid.SelectionChanged += this.OnImportedNamespacesDataGridSelectionChanged;
}
}
else
{
RestoreLastSelection();
this.Context.Items.Unsubscribe(this.OnItemSelectedCallback);
}
}
void RestoreLastSelection()
{
if ((this.Context != null) && (this.lastSelection != null))
{
this.Context.Items.SetValue(new Selection(this.lastSelection));
}
}
void StoreLastSelection()
{
if (this.Context != null)
{
this.lastSelection = this.Context.Items.GetValue().PrimarySelection;
}
}
void OnImportedNamespacesDataGridSelectionChanged(object sender, SelectionChangedEventArgs e)
{
DataGrid importsDataGrid = sender as DataGrid;
importsDataGrid.CanUserDeleteRows = true;
foreach (object item in importsDataGrid.SelectedItems)
{
ModelItem import = item as ModelItem;
if ((import != null) && !((bool)import.Properties[IsInvalidPropertyName].ComputedValue))
{
importsDataGrid.CanUserDeleteRows = false;
break;
}
}
}
void CommitImportNamespace(string addedNamespace)
{
ModelItem importItem;
if (!TryGetWrapper(addedNamespace, out importItem))
{
NamespaceData newImport = new NamespaceData { Namespace = addedNamespace };
importItem = this.importsModelItem.Add(newImport);
}
this.importedNamespacesDataGrid.SelectedItem = importItem;
this.importedNamespacesDataGrid.ScrollIntoView(importItem);
this.textBox.Text = string.Empty;
}
void OnPreviewKeyUp(object sender, KeyEventArgs args)
{
switch (args.Key)
{
case Key.Enter:
if (this.inputComboBox.SelectedItem != null)
{
CommitImportNamespace(this.inputComboBox.SelectedItem.ToString());
}
break;
case Key.Down:
if (!this.inputComboBox.IsDropDownOpen)
{
this.inputComboBox.IsDropDownOpen = true;
}
break;
default: break;
}
}
bool TryGetWrapper(string imported, out ModelItem importItem)
{
importItem = null;
foreach (ModelItem item in this.importsModelItem)
{
NamespaceData importedNamespace = item.GetCurrentValue() as NamespaceData;
Fx.Assert(importedNamespace != null, "element of import list model has to be NamespaceData");
if (importedNamespace.Namespace == imported)
{
importItem = item;
return true;
}
}
return false;
}
void OnImportsModelItemCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
foreach (ModelItem namespaceModel in e.NewItems)
{
ValidateNamespaceModelAndUpdateContextItem(namespaceModel);
}
}
else if (e.Action == NotifyCollectionChangedAction.Remove)
{
foreach (ModelItem namespaceModel in e.OldItems)
{
NamespaceData namespaceData = namespaceModel.GetCurrentValue() as NamespaceData;
Fx.Assert(namespaceData != null, "added item has to be NamespaceData");
this.importedNamespacesItem.ImportedNamespaces.Remove(namespaceData.Namespace);
this.attachedPropertiesForNamespace.Remove(namespaceData.Namespace);
}
}
UpdateExpressionEditors();
}
private void ValidateNamespaceModelAndUpdateContextItem(ModelItem namespaceModel)
{
NamespaceData namespaceData = namespaceModel.GetCurrentValue() as NamespaceData;
Fx.Assert(namespaceData != null, "added item has to be NamespaceData");
if (!this.availableNamespaces.ContainsKey(namespaceData.Namespace))
{
namespaceModel.Properties[ErrorMessagePropertyName].SetValue(string.Format(CultureInfo.CurrentCulture, SR.CannotResolveNamespace, namespaceData.Namespace));
namespaceModel.Properties[IsInvalidPropertyName].SetValue(true);
}
else
{
namespaceModel.Properties[ErrorMessagePropertyName].SetValue(string.Empty);
namespaceModel.Properties[IsInvalidPropertyName].SetValue(false);
this.importedNamespacesItem.ImportedNamespaces.Add(namespaceData.Namespace);
}
}
private void UpdateExpressionEditors()
{
AssemblyContextControlItem assemblies = this.Context.Items.GetValue();
IExpressionEditorService expressionEditorService = this.Context.Services.GetService();
if (expressionEditorService != null)
{
expressionEditorService.UpdateContext(assemblies, this.importedNamespacesItem);
}
}
void OnComboBoxSelectionChanged(object sender, SelectionChangedEventArgs args)
{
if (!this.isSetInternally)
{
if (this.isSelectedByMouse)
{
CommitImportNamespace(this.inputComboBox.SelectedItem.ToString());
this.isSelectedByMouse = false;
}
else
{
this.causedBySelectionChange = true;
}
}
}
bool FilterPredicate(object value)
{
// We don't like nulls.
if (value == null)
return false;
if (string.IsNullOrEmpty(this.lastInput))
return true;
return value.ToString().StartsWith(this.lastInput, StringComparison.OrdinalIgnoreCase);
}
void OnTextChanged(object sender, TextChangedEventArgs args)
{
if (!this.isSetInternally)
{
this.lastInput = this.textBox.Text;
this.lastCursePosition = this.textBox.CaretIndex;
this.isSetInternally = true;
if (this.causedBySelectionChange)
{
this.causedBySelectionChange = false;
}
else
{
Fx.Assert(this.inputComboBox.ItemsSource != null, "combo box's source must already be initialized when textbox is running");
CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource).Refresh();
if (this.lastInput.Length > 0)
{
this.inputComboBox.IsDropDownOpen = true;
foreach (object item in CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource))
{
this.inputComboBox.SelectedItem = null;
this.inputComboBox.SelectedItem = item;
break;
}
}
else
{
this.inputComboBox.IsDropDownOpen = false;
this.inputComboBox.SelectedItem = null;
}
}
this.textBox.Text = this.lastInput;
this.textBox.CaretIndex = this.lastCursePosition;
this.isSetInternally = false;
}
}
void OnMouseLeftClickComboBoxItem(object sender, MouseButtonEventArgs e)
{
ComboBoxItem comboBoxItem = sender as ComboBoxItem;
if (comboBoxItem != null)
{
this.isSetInternally = true;
string userInput = this.textBox.Text;
this.inputComboBox.SelectedItem = null;
this.textBox.Text = userInput;
this.isSetInternally = false;
this.isSelectedByMouse = true;
}
}
static void OnContextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
((ImportDesigner)sender).OnContextChanged();
}
void OnContextChanged()
{
AttachedPropertiesService attachedPropertyService = this.Context.Services.GetService();
Fx.Assert(attachedPropertyService != null, "AttachedPropertiesService shouldn't be null in EditingContext.");
attachedPropertyService.AddProperty(CreateAttachedPropertyForNamespace(ErrorMessagePropertyName));
attachedPropertyService.AddProperty(CreateAttachedPropertyForNamespace(IsInvalidPropertyName));
//clear any defaults because it's meant to be set by host and not serialized to XAML
VisualBasicSettings.Default.ImportReferences.Clear();
ModelService modelService = this.Context.Services.GetService();
Fx.Assert(modelService != null, "ModelService shouldn't be null in EditingContext.");
Fx.Assert(modelService.Root != null, "model must have a root");
this.importsModelItem = modelService.Root.Properties[NamespaceListPropertyDescriptor.ImportCollectionPropertyName].Collection;
Fx.Assert(this.importsModelItem != null, "root must have imports");
this.importsModelItem.CollectionChanged += this.OnImportsModelItemCollectionChanged;
this.importedNamespacesItem = this.Context.Items.GetValue();
this.importedNamespacesItem.EnsureInitialized(this.Context);
if (this.availableNamespaces == null)
{
//change to available namespace should not be a model change so we access the dictionary directly
this.availableNamespaces = this.importsModelItem.Properties[NamespaceListPropertyDescriptor.AvailableNamespacesPropertyName].ComputedValue as Dictionary>;
Fx.Assert(this.availableNamespaces != null, "Available namespace dictionary is not in right format");
}
RefreshNamespaces();
}
void OnItemSelected(Selection newSelection)
{
if ((!this.Context.Services.GetService().IsUndoRedoInProgress) && (!this.isSelectionChangedInternally))
{
StoreLastSelection();
}
}
AttachedProperty CreateAttachedPropertyForNamespace(string propertyName)
{
return new AttachedProperty
{
Getter = (modelItem) =>
{
NamespaceData data = modelItem.GetCurrentValue() as NamespaceData;
if (data == null)
{
return default(T);
}
IDictionary properties;
if (!this.attachedPropertiesForNamespace.TryGetValue(data.Namespace, out properties))
{
return default(T);
}
object propertyValue;
if (!properties.TryGetValue(propertyName, out propertyValue))
{
return default(T);
}
return (T)propertyValue;
},
Setter = (modelItem, propertyValue) =>
{
NamespaceData data = modelItem.GetCurrentValue() as NamespaceData;
if (data == null)
{
return;
}
IDictionary properties;
if (!this.attachedPropertiesForNamespace.TryGetValue(data.Namespace, out properties))
{
properties = new Dictionary();
this.attachedPropertiesForNamespace[data.Namespace] = properties;
}
properties[propertyName] = propertyValue;
},
Name = propertyName,
OwnerType = typeof(NamespaceData),
IsBrowsable = true,
};
}
private void RefreshNamespaces()
{
GetAvailabeNamespaces();
ValidateImportedNamespaces();
}
internal void OnReferenceUpdated(AssemblyName updatedReference, bool isAdded)
{
if (this.availableNamespaces != null)
{
Assembly assembly = Assembly.Load(updatedReference);
OnReferenceUpdated(assembly, isAdded);
}
}
internal void OnReferenceUpdated(Assembly assembly, bool isAdded)
{
if (this.availableNamespaces != null)
{
string name = assembly.GetName().Name;
if (isAdded)
{
try
{
foreach (Type type in assembly.GetTypes())
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (!this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList = new List { name };
this.availableNamespaces.Add (ns, assemblyList);
}
if (!assemblyList.Contains(name))
{
assemblyList.Add(name);
}
}
}
}
catch (FileNotFoundException)
{
}
}
else
{
try
{
foreach (Type type in assembly.GetTypes())
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList.Remove (name);
if (assemblyList.Count == 0)
{
this.availableNamespaces.Remove(ns);
}
}
}
}
}
catch (FileNotFoundException)
{
//If removed reference assemlby is not there anymore, scan new list of referenced assemblies and refresh the list
this.GetAvailabeNamespaces();
}
}
if (this.inputComboBox.ItemsSource != null)
{
CollectionViewSource.GetDefaultView(this.inputComboBox.ItemsSource).Refresh();
}
ValidateImportedNamespaces();
}
}
void GetAvailabeNamespaces()
{
Fx.Assert(this.availableNamespaces != null, "available namespace table should have been set before calling this method");
AssemblyContextControlItem assemblyItem = this.Context.Items.GetValue();
if (assemblyItem != null)
{
IMultiTargetingSupportService multiTargetingService = this.Context.Services.GetService();
IEnumerable allAssemblies = assemblyItem.GetEnvironmentAssemblies(multiTargetingService);
if (assemblyItem.LocalAssemblyName != null)
{
allAssemblies = allAssemblies.Union(new Collection {
AssemblyContextControlItem.GetAssembly(assemblyItem.LocalAssemblyName, multiTargetingService)
});
}
foreach (Assembly assembly in allAssemblies)
{
try
{
if (assembly != null)
{
Fx.Assert(!assembly.IsDynamic, "there should not be any dynamic assemblies in reference list");
//we should only display namespaces for public types except the local assembly
IEnumerable types = null;
if ((assemblyItem.LocalAssemblyName != null) && (assembly.FullName == assemblyItem.LocalAssemblyName.FullName))
{
types = assembly.GetTypes();
}
else
{
types = assembly.GetExportedTypes();
}
if (types != null)
{
string assemblyName = assembly.GetName().Name;
foreach (Type type in types)
{
string ns = type.Namespace;
if (!string.IsNullOrEmpty(ns))
{
List assemblyList;
if (!this.availableNamespaces.TryGetValue(ns, out assemblyList))
{
assemblyList = new List { assemblyName };
this.availableNamespaces.Add (ns, assemblyList);
}
if (!assemblyList.Contains(assemblyName))
{
assemblyList.Add (assemblyName);
}
}
}
}
}
}
catch (ReflectionTypeLoadException)
{
}
catch (FileNotFoundException)
{
}
}
if (assemblyItem.LocalAssemblyName == null)
{
AppDomain.CurrentDomain.AssemblyLoad += OnAssemblyLoad;
}
}
}
void OnAssemblyLoad(object sender, AssemblyLoadEventArgs args)
{
if (!args.LoadedAssembly.IsDynamic)
{
OnReferenceUpdated(args.LoadedAssembly, true);
}
}
void ValidateImportedNamespaces()
{
this.importedNamespacesItem.ImportedNamespaces.Clear();
foreach (ModelItem namespaceModel in this.importsModelItem)
{
ValidateNamespaceModelAndUpdateContextItem(namespaceModel);
}
UpdateExpressionEditors();
}
//Helper function used by other components if need to update import context item
public static void AddImport(string importedNamespace, EditingContext editingContext)
{
//For types defined without any namespace, Type.Namespace is null instead of empty. We don't need to add any namespace to Import list in this case
if (string.IsNullOrEmpty (importedNamespace))
{
return;
}
Fx.Assert(editingContext != null, "EditingContext shouldn't be null.");
ModelService modelService = editingContext.Services.GetService();
Fx.Assert(modelService != null, "EditingContext should contains ModelService.");
ModelItemCollection importsCollection = modelService.Root.Properties[NamespaceListPropertyDescriptor.ImportCollectionPropertyName].Collection;
NamespaceList namespaceList = importsCollection.GetCurrentValue() as NamespaceList;
if (namespaceList.Lookup(importedNamespace) == -1)
{
importsCollection.Add(new NamespaceData { Namespace = importedNamespace });
}
else
{
namespaceList.UpdateAssemblyInfo(importedNamespace);
}
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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- SizeAnimationClockResource.cs
- DocumentSequenceHighlightLayer.cs
- ReturnEventArgs.cs
- DatePicker.cs
- KeyValueConfigurationCollection.cs
- DbConvert.cs
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- CodeAccessSecurityEngine.cs
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- MILUtilities.cs
- ApplicationDirectory.cs
- GridViewHeaderRowPresenter.cs
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- XamlReaderHelper.cs
- WebCodeGenerator.cs
- SqlConnectionHelper.cs
- DirectoryNotFoundException.cs
- __Error.cs
- EmbeddedObject.cs
- PrefixQName.cs
- DesignerCommandSet.cs
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- MemoryFailPoint.cs
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- XmlHierarchyData.cs
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- XmlValidatingReaderImpl.cs
- Int32RectConverter.cs
- BinHexDecoder.cs
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