private void EndTransaction(object obj, System.ComponentModel.Design.DesignerTransaction tran, object oldValue, object newValue, bool commit)
{
if (tran == null)
{
this.OnValueChanged(obj, new PropertyChangedEventArgs(this.Name));
return;
}
if (commit)
{
IComponent component = obj as IComponent;
System.ComponentModel.Design.IComponentChangeService componentChangeService = (System.ComponentModel.Design.IComponentChangeService)component.Site.GetService(typeof(System.ComponentModel.Design.IComponentChangeService));
if (componentChangeService != null)
{
componentChangeService.OnComponentChanged(component, this, oldValue, newValue);
}
tran.Commit();
this.OnValueChanged(obj, new PropertyChangedEventArgs(this.Name));
}
else
{
tran.Cancel();
}
}
public override bool OnMouseUp(Glyph g, MouseButtons button)
{
try
{
if (this.dragging)
{
if (this.dragManager != null)
{
this.dragManager.OnMouseUp();
this.dragManager = null;
this.lastSnapOffset = Point.Empty;
this.didSnap = false;
}
if ((this.resizeComponents != null) && (this.resizeComponents.Length > 0))
{
PropertyDescriptor descriptor = TypeDescriptor.GetProperties(this.resizeComponents[0].resizeControl)["Width"];
PropertyDescriptor descriptor2 = TypeDescriptor.GetProperties(this.resizeComponents[0].resizeControl)["Height"];
PropertyDescriptor descriptor3 = TypeDescriptor.GetProperties(this.resizeComponents[0].resizeControl)["Top"];
PropertyDescriptor descriptor4 = TypeDescriptor.GetProperties(this.resizeComponents[0].resizeControl)["Left"];
for (int i = 0; i < this.resizeComponents.Length; i++)
{
if ((descriptor != null) && (((Control) this.resizeComponents[i].resizeControl).Width != this.resizeComponents[i].resizeBounds.Width))
{
descriptor.SetValue(this.resizeComponents[i].resizeControl, ((Control) this.resizeComponents[i].resizeControl).Width);
}
if ((descriptor2 != null) && (((Control) this.resizeComponents[i].resizeControl).Height != this.resizeComponents[i].resizeBounds.Height))
{
descriptor2.SetValue(this.resizeComponents[i].resizeControl, ((Control) this.resizeComponents[i].resizeControl).Height);
}
if ((descriptor3 != null) && (((Control) this.resizeComponents[i].resizeControl).Top != this.resizeComponents[i].resizeBounds.Y))
{
descriptor3.SetValue(this.resizeComponents[i].resizeControl, ((Control) this.resizeComponents[i].resizeControl).Top);
}
if ((descriptor4 != null) && (((Control) this.resizeComponents[i].resizeControl).Left != this.resizeComponents[i].resizeBounds.X))
{
descriptor4.SetValue(this.resizeComponents[i].resizeControl, ((Control) this.resizeComponents[i].resizeControl).Left);
}
if ((this.resizeComponents[i].resizeControl == this.primaryControl) && (this.statusCommandUI != null))
{
this.statusCommandUI.SetStatusInformation(this.primaryControl);
}
}
}
}
if (this.resizeTransaction != null)
{
DesignerTransaction resizeTransaction = this.resizeTransaction;
this.resizeTransaction = null;
using (resizeTransaction)
{
resizeTransaction.Commit();
}
}
}
finally
{
this.OnLoseCapture(g, EventArgs.Empty);
}
return false;
}
internal static void SaveGridState(DesignerTransaction dt, Grid grid, IComponentChangeService service)
{
service.OnComponentChanging(grid, null);
service.OnComponentChanged(grid, null, null, null);
dt.Commit();
}
void EndTransaction (object obj, DesignerTransaction tran, object oldValue, object newValue, bool commit)
{
if (tran == null) return;
if (commit) {
IComponent com = obj as IComponent;
IComponentChangeService ccs = (IComponentChangeService) com.Site.GetService (typeof(IComponentChangeService));
if (ccs != null)
ccs.OnComponentChanged (com, Property, oldValue, newValue);
tran.Commit ();
}
else
tran.Cancel ();
}
/// <summary>
/// Creates a method signature in the source code file for the default event on the component and navigates
/// the user's cursor to that location in preparation to assign the default action.
/// </summary>
public virtual void DoDefaultAction()
{
// If the event binding service is not available, there is nothing much we can do, so just return.
if (!TryGetService(out IEventBindingService ebs) ||
!TryGetService(out ISelectionService selectionService))
{
return;
}
ICollection components = selectionService.GetSelectedComponents();
EventDescriptor thisDefaultEvent = null;
string thisHandler = null;
IDesignerHost host = GetService <IDesignerHost>();
DesignerTransaction t = null;
if (components is null)
{
return;
}
try
{
foreach (IComponent comp in components.OfType <IComponent>())
{
EventDescriptor defaultEvent = TypeDescriptor.GetDefaultEvent(comp);
PropertyDescriptor defaultPropEvent = null;
bool eventChanged = false;
if (defaultEvent is not null)
{
defaultPropEvent = ebs.GetEventProperty(defaultEvent);
}
// If we couldn't find a property for this event, or of the property is read only, then abort.
if (defaultPropEvent is null || defaultPropEvent.IsReadOnly)
{
continue;
}
try
{
if (host is not null && t is null)
{
t = host.CreateTransaction(string.Format(SR.ComponentDesignerAddEvent, defaultEvent.Name));
}
}
catch (CheckoutException cxe) when(cxe == CheckoutException.Canceled)
{
return;
}
// handler will be null if there is no explicit event hookup in the parsed init method
object result = defaultPropEvent.GetValue(comp);
string handler = result as string;
if (handler is null)
{
// Skip invalid properties.
if (result is not null)
{
continue;
}
eventChanged = true;
handler = ebs.CreateUniqueMethodName(comp, defaultEvent);
}
else
{
// ensure the handler is still there
eventChanged = true;
ICollection methods = ebs.GetCompatibleMethods(defaultEvent);
if (methods is not null)
{
foreach (string compatibleMethod in methods.OfType <string>())
{
if (handler == compatibleMethod)
{
eventChanged = false;
break;
}
}
}
}
// Save the new value... BEFORE navigating to it!
// s_codemarkers.CodeMarker(CodeMarkerEvent.perfFXBindEventDesignToCode);
if (eventChanged)
{
defaultPropEvent.SetValue(comp, handler);
}
if (Component == comp)
{
thisDefaultEvent = defaultEvent;
thisHandler = handler;
}
}
}
catch (InvalidOperationException)
{
t?.Cancel();
t = null;
}
finally
{
t?.Commit();
}
// Now show the event code.
if (thisHandler is not null && thisDefaultEvent is not null)
{
ebs.ShowCode(Component, thisDefaultEvent);
}
}
void EndTransaction (object obj, DesignerTransaction tran, object oldValue, object newValue, bool commit)
{
if (tran == null) {
// FIXME: EventArgs might be differen type.
OnValueChanged (obj, new PropertyChangedEventArgs (Name));
return;
}
if (commit) {
IComponent com = obj as IComponent;
IComponentChangeService ccs = (IComponentChangeService) com.Site.GetService (typeof(IComponentChangeService));
if (ccs != null)
ccs.OnComponentChanged (com, this, oldValue, newValue);
tran.Commit ();
// FIXME: EventArgs might be differen type.
OnValueChanged (obj, new PropertyChangedEventArgs (Name));
} else
tran.Cancel ();
}
public override bool OnMouseUp(Glyph g, MouseButtons button)
{
if (this.pushedBehavior)
{
this.FinishResize();
if (this.resizeTransaction != null)
{
DesignerTransaction resizeTransaction = this.resizeTransaction;
this.resizeTransaction = null;
using (resizeTransaction)
{
resizeTransaction.Commit();
}
this.resizeProp = null;
}
}
return false;
}
/// <summary>
/// This will set value to be the new value of this property on the
/// component by invoking the setXXX method on the component. If the
/// value specified is invalid, the component should throw an exception
/// which will be passed up. The component designer should design the
/// property so that getXXX following a setXXX should return the value
/// passed in if no exception was thrown in the setXXX call.
/// </summary>
public override void SetValue(object component, object value)
{
// Argument, state checking. Is it ok to set this event?
if (IsReadOnly)
{
throw new InvalidOperationException(string.Format(SR.EventBindingServiceEventReadOnly, Name))
{
HelpLink = SR.EventBindingServiceEventReadOnly
};
}
if (value is not null and not string)
{
throw new ArgumentException(string.Format(SR.EventBindingServiceBadArgType, Name, typeof(string).Name))
{
HelpLink = SR.EventBindingServiceBadArgType
};
}
string name = (string)value;
if (name is not null && name.Length == 0)
{
name = null;
}
// Obtain the site for the component. Note that this can be a site
// to a parent component if we can get to the reference service.
ISite site = null;
if (component is IComponent component1)
{
site = component1.Site;
}
if (site is null && _eventService._provider.TryGetService(out IReferenceService referenceService))
{
IComponent baseComponent = referenceService.GetComponent(component);
if (baseComponent is not null)
{
site = baseComponent.Site;
}
}
if (site is null)
{
throw new InvalidOperationException(SR.EventBindingServiceNoSite)
{
HelpLink = SR.EventBindingServiceNoSite
};
}
// The dictionary service is where we store the actual event method name.
if (!site.TryGetService(out IDictionaryService dictionaryService))
{
throw new InvalidOperationException(string.Format(SR.EventBindingServiceMissingService, typeof(IDictionaryService).Name))
{
HelpLink = SR.EventBindingServiceMissingService
};
}
// Get the old method name, ensure that they are different, and then continue.
ReferenceEventClosure key = new(component, this);
string oldName = (string)dictionaryService.GetValue(key);
if (ReferenceEquals(oldName, name))
{
return;
}
if (oldName is not null && name is not null && oldName.Equals(name))
{
return;
}
// Before we continue our work, ensure that the name is actually valid.
if (name is not null)
{
_eventService.ValidateMethodName(name);
}
// If there is a designer host, create a transaction so there is a
// nice name for this change. We don't want a name like
// "Change property 'Click', because to users, this isn't a property.
DesignerTransaction transaction = null;
if (site.TryGetService(out IDesignerHost host))
{
transaction = host.CreateTransaction(string.Format(SR.EventBindingServiceSetValue, site.Name, name));
}
try
{
// The names are different. Fire a changing event to make
// sure it's OK to perform the change.
if (site.TryGetService(out IComponentChangeService changeService))
{
try
{
changeService.OnComponentChanging(component, this);
changeService.OnComponentChanging(component, Event);
}
catch (CheckoutException coEx) when(coEx == CheckoutException.Canceled)
{
return;
}
}
// Less chance of success of adding a new method name, so
// don't release the old name until we verify that adding
// the new one actually succeeded.
if (name is not null)
{
_eventService.UseMethod((IComponent)component, Event, name);
}
if (oldName is not null)
{
_eventService.FreeMethod((IComponent)component, Event, oldName);
}
dictionaryService.SetValue(key, name);
if (changeService is not null)
{
changeService.OnComponentChanged(component, Event);
changeService.OnComponentChanged(component, this, oldName, name);
}
OnValueChanged(component, EventArgs.Empty);
transaction?.Commit();
}
finally
{
if (transaction is not null)
{
((IDisposable)transaction).Dispose();
}
}
}
// This method is called when a user double-clicks (the representation of) a component.
// Tries to bind the default event to a method or creates a new one.
//
public virtual void DoDefaultAction()
{
IDesignerHost host = (IDesignerHost)this.GetService(typeof(IDesignerHost));
DesignerTransaction transaction = null;
if (host != null)
{
transaction = host.CreateTransaction("ComponentDesigner_AddEvent");
}
IEventBindingService eventBindingService = GetService(typeof(IEventBindingService)) as IEventBindingService;
EventDescriptor defaultEventDescriptor = null;
if (eventBindingService != null)
{
ISelectionService selectionService = this.GetService(typeof(ISelectionService)) as ISelectionService;
try {
if (selectionService != null)
{
ICollection selectedComponents = selectionService.GetSelectedComponents();
foreach (IComponent component in selectedComponents)
{
EventDescriptor eventDescriptor = TypeDescriptor.GetDefaultEvent(component);
if (eventDescriptor != null)
{
PropertyDescriptor eventProperty = eventBindingService.GetEventProperty(eventDescriptor);
if (eventProperty != null && !eventProperty.IsReadOnly)
{
string methodName = eventProperty.GetValue(component) as string;
bool newMethod = true;
if (methodName != null || methodName != String.Empty)
{
ICollection compatibleMethods = eventBindingService.GetCompatibleMethods(eventDescriptor);
foreach (string signature in compatibleMethods)
{
if (signature == methodName)
{
newMethod = false;
break;
}
}
}
if (newMethod)
{
if (methodName == null)
{
methodName = eventBindingService.CreateUniqueMethodName(component, eventDescriptor);
}
eventProperty.SetValue(component, methodName);
}
if (component == _component)
{
defaultEventDescriptor = eventDescriptor;
}
}
}
}
}
}
catch {
if (transaction != null)
{
transaction.Cancel();
transaction = null;
}
}
finally {
if (transaction != null)
{
transaction.Commit();
}
}
if (defaultEventDescriptor != null)
{
eventBindingService.ShowCode(_component, defaultEventDescriptor);
}
}
}
public virtual void DoDefaultAction()
{
IEventBindingService service = (IEventBindingService)this.GetService(typeof(IEventBindingService));
if (service != null)
{
ISelectionService service2 = (ISelectionService)this.GetService(typeof(ISelectionService));
if (service2 != null)
{
ICollection selectedComponents = service2.GetSelectedComponents();
EventDescriptor e = null;
string str = null;
IDesignerHost host = (IDesignerHost)this.GetService(typeof(IDesignerHost));
DesignerTransaction transaction = null;
try
{
foreach (object obj2 in selectedComponents)
{
if (!(obj2 is IComponent))
{
continue;
}
EventDescriptor defaultEvent = TypeDescriptor.GetDefaultEvent(obj2);
PropertyDescriptor eventProperty = null;
string str2 = null;
bool flag = false;
if (defaultEvent != null)
{
eventProperty = service.GetEventProperty(defaultEvent);
}
if ((eventProperty != null) && !eventProperty.IsReadOnly)
{
try
{
if ((host != null) && (transaction == null))
{
transaction = host.CreateTransaction(System.Design.SR.GetString("ComponentDesignerAddEvent", new object[] { defaultEvent.Name }));
}
}
catch (CheckoutException exception)
{
if (exception != CheckoutException.Canceled)
{
throw exception;
}
return;
}
str2 = (string)eventProperty.GetValue(obj2);
if (str2 == null)
{
flag = true;
str2 = service.CreateUniqueMethodName((IComponent)obj2, defaultEvent);
}
else
{
flag = true;
foreach (string str3 in service.GetCompatibleMethods(defaultEvent))
{
if (str2 == str3)
{
flag = false;
break;
}
}
}
codemarkers.CodeMarker(CodeMarkerEvent.perfFXBindEventDesignToCode);
if (flag && (eventProperty != null))
{
eventProperty.SetValue(obj2, str2);
}
if (this.component == obj2)
{
e = defaultEvent;
str = str2;
}
}
}
}
catch (InvalidOperationException)
{
if (transaction != null)
{
transaction.Cancel();
transaction = null;
}
}
finally
{
if (transaction != null)
{
transaction.Commit();
}
}
if ((str != null) && (e != null))
{
service.ShowCode(this.component, e);
}
}
}
}
/// <include file='doc\ComponentDesigner.uex' path='docs/doc[@for="ComponentDesigner.DoDefaultAction"]/*' />
/// <devdoc>
/// <para>Creates a method signature in the source code file for the default event on the component and navigates
/// the user's cursor to that location in preparation to assign
/// the default action.</para>
/// </devdoc>
public virtual void DoDefaultAction()
{
ISelectionService selectionService = (ISelectionService)GetService(typeof(ISelectionService));
ICollection components = selectionService.GetSelectedComponents();
// hmmmm, I sure could use some services.
//
IEventBindingService eps = (IEventBindingService)GetService(typeof(IEventBindingService));
EventDescriptor thisDefaultEvent = null;
string thisHandler = null;
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
DesignerTransaction t = null;
try {
foreach (object comp in components)
{
if (!(comp is IComponent))
{
continue;
}
EventDescriptor defaultEvent = TypeDescriptor.GetDefaultEvent(comp);
PropertyDescriptor defaultPropEvent = null;
string handler = null;
bool eventChanged = false;
if (defaultEvent != null)
{
if (CompModSwitches.CommonDesignerServices.Enabled)
{
Debug.Assert(eps != null, "IEventBindingService not found");
}
if (eps != null)
{
defaultPropEvent = eps.GetEventProperty(defaultEvent);
}
}
// If we couldn't find a property for this event, or of the property is read only, then
// abort.
//
if (defaultPropEvent == null || defaultPropEvent.IsReadOnly)
{
continue;
}
try {
if (host != null && t == null)
{
t = host.CreateTransaction(SR.GetString(SR.ComponentDesignerAddEvent, defaultEvent.Name));
}
}
catch (CheckoutException cxe) {
if (cxe == CheckoutException.Canceled)
{
return;
}
throw cxe;
}
// handler will be null if there is no explicit event hookup in the parsed init method
handler = (string)defaultPropEvent.GetValue(comp);
if (handler == null)
{
eventChanged = true;
handler = eps.CreateUniqueMethodName((IComponent)comp, defaultEvent);
}
else
{
// ensure the handler is still there
eventChanged = true;
foreach (string compatibleMethod in eps.GetCompatibleMethods(defaultEvent))
{
if (handler == compatibleMethod)
{
eventChanged = false;
break;
}
}
}
// Save the new value... BEFORE navigating to it!
//
if (eventChanged && defaultPropEvent != null)
{
defaultPropEvent.SetValue(comp, handler);
}
if (component == comp)
{
thisDefaultEvent = defaultEvent;
thisHandler = handler;
}
}
}
finally {
if (t != null)
{
t.Commit();
}
}
// Now show the event code.
//
if (thisHandler != null && thisDefaultEvent != null)
{
eps.ShowCode(component, thisDefaultEvent);
}
}
public override void SetValue(object component, object value)
{
if (this.IsReadOnly)
{
Exception exception = new InvalidOperationException(System.Design.SR.GetString("EventBindingServiceEventReadOnly", new object[] { this.Name }))
{
HelpLink = "EventBindingServiceEventReadOnly"
};
throw exception;
}
if ((value != null) && !(value is string))
{
Exception exception2 = new ArgumentException(System.Design.SR.GetString("EventBindingServiceBadArgType", new object[] { this.Name, typeof(string).Name }))
{
HelpLink = "EventBindingServiceBadArgType"
};
throw exception2;
}
string objB = (string)value;
if ((objB != null) && (objB.Length == 0))
{
objB = null;
}
ISite site = null;
if (component is IComponent)
{
site = ((IComponent)component).Site;
}
if (site == null)
{
IReferenceService service = this._eventSvc._provider.GetService(typeof(IReferenceService)) as IReferenceService;
if (service != null)
{
IComponent component2 = service.GetComponent(component);
if (component2 != null)
{
site = component2.Site;
}
}
}
if (site == null)
{
Exception exception3 = new InvalidOperationException(System.Design.SR.GetString("EventBindingServiceNoSite"))
{
HelpLink = "EventBindingServiceNoSite"
};
throw exception3;
}
IDictionaryService service2 = site.GetService(typeof(IDictionaryService)) as IDictionaryService;
if (service2 == null)
{
Exception exception4 = new InvalidOperationException(System.Design.SR.GetString("EventBindingServiceMissingService", new object[] { typeof(IDictionaryService).Name }))
{
HelpLink = "EventBindingServiceMissingService"
};
throw exception4;
}
ReferenceEventClosure key = new ReferenceEventClosure(component, this);
string objA = (string)service2.GetValue(key);
if (!object.ReferenceEquals(objA, objB) && (((objA == null) || (objB == null)) || !objA.Equals(objB)))
{
if (objB != null)
{
this._eventSvc.ValidateMethodName(objB);
}
IDesignerHost host = site.GetService(typeof(IDesignerHost)) as IDesignerHost;
DesignerTransaction transaction = null;
if (host != null)
{
transaction = host.CreateTransaction(System.Design.SR.GetString("EventBindingServiceSetValue", new object[] { site.Name, objB }));
}
try
{
IComponentChangeService service3 = site.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
if (service3 != null)
{
try
{
service3.OnComponentChanging(component, this);
service3.OnComponentChanging(component, this.Event);
}
catch (CheckoutException exception5)
{
if (exception5 != CheckoutException.Canceled)
{
throw;
}
return;
}
}
if (objB != null)
{
this._eventSvc.UseMethod((IComponent)component, this._eventDesc, objB);
}
if (objA != null)
{
this._eventSvc.FreeMethod((IComponent)component, this._eventDesc, objA);
}
service2.SetValue(key, objB);
if (service3 != null)
{
service3.OnComponentChanged(component, this.Event, null, null);
service3.OnComponentChanged(component, this, objA, objB);
}
this.OnValueChanged(component, EventArgs.Empty);
if (transaction != null)
{
transaction.Commit();
}
}
finally
{
if (transaction != null)
{
((IDisposable)transaction).Dispose();
}
}
}
}
/// <summary>
/// Creates a method signature in the source code file for the default event on the component and navigates the user's cursor to that location in preparation to assign the default action.
/// </summary>
public virtual void DoDefaultAction()
{
IEventBindingService eps = (IEventBindingService)GetService(typeof(IEventBindingService));
//If the event binding service is not available, there is nothing much we can do, so just return.
if (eps == null)
{
return;
}
ISelectionService selectionService = (ISelectionService)GetService(typeof(ISelectionService));
if (selectionService == null)
{
return;
}
ICollection components = selectionService.GetSelectedComponents();
EventDescriptor thisDefaultEvent = null;
string thisHandler = null;
IDesignerHost host = (IDesignerHost)GetService(typeof(IDesignerHost));
DesignerTransaction t = null;
try
{
foreach (object comp in components)
{
if (!(comp is IComponent))
{
continue;
}
EventDescriptor defaultEvent = TypeDescriptor.GetDefaultEvent(comp);
PropertyDescriptor defaultPropEvent = null;
string handler = null;
bool eventChanged = false;
if (defaultEvent != null)
{
defaultPropEvent = eps.GetEventProperty(defaultEvent);
}
// If we couldn't find a property for this event, or of the property is read only, then abort.
if (defaultPropEvent == null || defaultPropEvent.IsReadOnly)
{
continue;
}
try
{
if (host != null && t == null)
{
t = host.CreateTransaction(string.Format(SR.ComponentDesignerAddEvent, defaultEvent.Name));
}
}
catch (CheckoutException cxe)
{
if (cxe == CheckoutException.Canceled)
{
return;
}
throw cxe;
}
// handler will be null if there is no explicit event hookup in the parsed init method
handler = (string)defaultPropEvent.GetValue(comp);
if (handler == null)
{
eventChanged = true;
handler = eps.CreateUniqueMethodName((IComponent)comp, defaultEvent);
}
else
{
// ensure the handler is still there
eventChanged = true;
foreach (string compatibleMethod in eps.GetCompatibleMethods(defaultEvent))
{
if (handler == compatibleMethod)
{
eventChanged = false;
break;
}
}
}
// Save the new value... BEFORE navigating to it!
//s_codemarkers.CodeMarker(CodeMarkerEvent.perfFXBindEventDesignToCode);
if (eventChanged && defaultPropEvent != null)
{
defaultPropEvent.SetValue(comp, handler);
}
if (_component == comp)
{
thisDefaultEvent = defaultEvent;
thisHandler = handler;
}
}
}
catch (InvalidOperationException)
{
// VSWhidbey 434433 - If the doc data for this designer is currently locked, we will get an exception here.
// In this case, just eat the exception.
if (t != null)
{
t.Cancel();
t = null;
}
}
finally
{
if (t != null)
{
t.Commit();
}
}
// Now show the event code.
if (thisHandler != null && thisDefaultEvent != null)
{
eps.ShowCode(_component, thisDefaultEvent);
}
}
