/// <summary>
/// Called when the application is about to exist.
/// </summary>
/// <returns>
/// True if the application can exit. False to abbort exit.
/// </returns>
public virtual bool CanExit()
{
if (this.SelectedModelContextViewModel == null)
{
return(true);
}
if (this.SelectedModelContextViewModel.ModelContext == null)
{
return(true);
}
if (this.SelectedModelContextViewModel.ModelContext.RootElement != null)
{
if (this.SelectedModelContextViewModel.ModelContext.IsDirty)
{
IMessageBoxService messageBox = this.GlobalServiceProvider.Resolve <IMessageBoxService>();
CustomDialogResults dlgResult = messageBox.ShowYesNoCancel("Save changes to the current Model?", CustomDialogIcons.Question);
if (dlgResult == CustomDialogResults.Cancel)
{
return(false);
}
if (dlgResult == CustomDialogResults.Yes)
{
using (new ToolFramework.Modeling.Visualization.ViewModel.UI.WaitCursor())
{
this.SelectedModelContextViewModel.ModelContext.Save((this.SelectedModelContextViewModel.ModelContext.RootElement as IParentModelElement).DomainFilePath);
}
}
}
}
return(true);
}
/// <summary>
/// Switch model contexts.
/// </summary>
/// <param name="newContextVM">New model context vm.</param>
/// <param name="oldContextVM">Old model context vm.</param>
/// <returns>True if a switch did occur. False otherwise.</returns>
protected virtual bool SwitchContexts(ModelContextViewModel newContextVM, ModelContextViewModel oldContextVM)
{
if (this.ModelData.CurrentModelContext.RootElement != null)
{
// notify that the current document will be closed
IMessageBoxService messageBox = this.GlobalServiceProvider.Resolve <IMessageBoxService>();
if (messageBox.ShowYesNoCancel("The currently opened document will be closed in the process of a context switch! Do you want to proceed?", CustomDialogIcons.Question) != CustomDialogResults.Yes)
{
return(false);
}
}
PleaseWaitHelper.Show();
BeforeSwitchContexts(newContextVM, oldContextVM);
if (this.ModelData.CurrentModelContext.RootElement != null)
{
this.ModelData.CurrentModelContext.Reset();
}
this.Reset();
// update model data
this.ModelData.CurrentModelContext = newContextVM.ModelContext;
AfterSwitchContexts(newContextVM, oldContextVM);
PleaseWaitHelper.Hide();
return(true);
}
/// <summary>
/// Close model command executed.
/// </summary>
/// <returns></returns>
protected virtual bool CloseModelCommandExecute()
{
if (this.SelectedModelContextViewModel == null)
{
return(false);
}
if (this.SelectedModelContextViewModel.ModelContext == null)
{
return(false);
}
if (this.SelectedModelContextViewModel.ModelContext.IsDirty)
{
IMessageBoxService messageBox = this.GlobalServiceProvider.Resolve <IMessageBoxService>();
CustomDialogResults dlgResult = messageBox.ShowYesNoCancel("Save changes to the current Model?", CustomDialogIcons.Question);
if (dlgResult == CustomDialogResults.Cancel)
{
return(false);
}
else if (dlgResult == CustomDialogResults.Yes)
{
using (new ToolFramework.Modeling.Visualization.ViewModel.UI.WaitCursor())
{
this.SelectedModelContextViewModel.ModelContext.Save((this.SelectedModelContextViewModel.ModelContext.RootElement as IParentModelElement).DomainFilePath);
//this.SelectedModelContextViewModel.ModelContext.Save(this.ViewModelStore.GetDomainModelServices(this.SelectedModelContextViewModel.ModelContext.RootElement).ElementParentProvider.GetDomainModelFilePath(this.SelectedModelContextViewModel.ModelContext.RootElement));
}
}
}
using (new ToolFramework.Modeling.Visualization.ViewModel.UI.WaitCursor())
{
for (int i = this.UnknownOpenedModels.Count - 1; i >= 0; i--)
{
BaseDiagramSurfaceViewModel vm = this.UnknownOpenedModels[i] as BaseDiagramSurfaceViewModel;
if (vm == null)
{
continue;
}
//foreach (BaseDiagramSurfaceViewModel vm in this.UnknownOpenedModels)
if (!vm.IsDisposed)
{
this.EventManager.GetEvent <CloseViewModelRequestEvent>().Publish(new CloseViewModelRequestEventArgs(vm, true));
}
}
this.Reset();
this.ModelData.Reset();
}
this.CloseCommand.RaiseCanExecuteChanged();
this.SaveAsModelCommand.RaiseCanExecuteChanged();
this.SaveModelCommand.RaiseCanExecuteChanged();
this.SelectedModelContextViewModel.OnDocumentClosed();
return(true);
}