private ViewSettings CreateNewView(string viewName, Navigator navigator, Guid taskId, TaskArgumentsHolder args)
{
//Create a new instance
ViewSettings viewSettings = UIPConfiguration.Config.GetViewSettingsFromName(viewName);
if (viewSettings == null)
{
throw new UIPException(Resource.ResourceManager.FormatMessage(Resource.Exceptions.RES_ExceptionViewConfigNotFound, viewName));
}
IView view = (IView)GenericFactory.Create(viewSettings);
if (view is WindowsFormView)
{
WindowsFormView form = (WindowsFormView)view;
ActivateForm(form, viewSettings, navigator, taskId, null, args);
}
else
{
WindowsFormControlView ctrl = (WindowsFormControlView)view;
AddActiveControl(taskId, viewName, ctrl);
ctrl.Disposed += new EventHandler(ControlDisposed);
ActivateControl(ctrl, viewSettings, navigator, taskId, args);
ctrl.Show();
}
return(viewSettings);
}
private void CleanUpChildWindows(WindowsFormView parent)
{
foreach (Form form in parent.OwnedForms)
{
form.Close();
}
}
private void ClosePreviousFormIfNecessary(WindowsFormView currentForm, string previousView, Guid taskId, ViewSettings currentViewSettings)
{
if (!currentViewSettings.IsFloatable)
{
if (null != previousView && 0 != previousView.Length)
{
//Get the current form
ViewSettings previousViewSettings = UIPConfiguration.Config.GetViewSettingsFromName(previousView);
if (previousViewSettings == null)
{
throw new UIPException(Resource.ResourceManager.FormatMessage(Resource.Exceptions.RES_ExceptionViewConfigNotFound, previousView));
}
WindowsFormView previousForm = (WindowsFormView)GetActiveForms(taskId)[previousView];
//if we end up staying with same form, we should not close it
if (currentForm != null && previousForm != null && previousForm == currentForm)
{
return;
}
//if the current one is modal, we don't want to close the preivous view
if (currentViewSettings.IsOpenModal && !previousViewSettings.IsOpenModal)
{
return;
}
if (previousForm != null && !previousViewSettings.IsStayOpen)
{
//The current window must be closed
previousForm.Close();
}
}
}
}
/// <summary>
/// Activates a specific view with activation arguments.
/// </summary>
/// <param name="previousView">The view currently displayed.</param>
/// <param name="view">The name of the view to be displayed next.</param>
/// <param name="navigator">The navigator.</param>
/// <param name="args">The arguments for the next view.</param>
public void ActivateView(string previousView, string view, Navigator navigator, TaskArgumentsHolder args)
{
Guid taskId = navigator.CurrentState.TaskId;
InitiailizeFormAndViews(taskId);
WindowsFormView winFormView = GetActiveForm(taskId, view);
WindowsFormControlView controlView = GetActiveControl(taskId, view);
ViewSettings viewSettings = null;
if (winFormView != null)
{
winFormView.Activate();
winFormView.Visible = true;
viewSettings = UIPConfiguration.Config.GetViewSettingsFromName(winFormView.ViewName);
ClosePreviousFormIfNecessary(winFormView, previousView, taskId, viewSettings);
}
else if (controlView != null)
{
ActivateControl(controlView, previousView);
viewSettings = UIPConfiguration.Config.GetViewSettingsFromName(controlView.ViewName);
}
else
{
viewSettings = CreateNewView(view, navigator, taskId, args);
ClosePreviousFormIfNecessary(null, previousView, taskId, viewSettings);
}
}
private void LayoutControlsIfRequired(ViewSettings viewSettings, WindowsFormView winFormView)
{
ILayoutManager layoutManager = LayoutManagerFactory.Create(viewSettings.Name);
if (layoutManager != null)
{
layoutManager.LayoutControls(winFormView);
}
}
private void SetWinFormInternals(WindowsFormView view, ViewSettings viewSettings, Navigator navigator)
{
if (view != null)
{
view.InternalNavigator = navigator;
view.InternalNavigationGraph = navigator.Name;
view.InternalViewName = viewSettings.Name;
}
}
private WindowsFormView ActivateForm(WindowsFormView winFormView, ViewSettings viewSettings, Navigator navigator, Guid taskId, string previousView, TaskArgumentsHolder args)
{
winFormView.InternalTaskId = taskId;
winFormView.InternalNavigationGraph = navigator.Name;
winFormView.InternalViewName = viewSettings.Name;
winFormView.InternalNavigator = navigator;
ControllerBase controller = navigator.GetController(winFormView);
winFormView.InternalController = controller;
InitializeChildren(winFormView, navigator, taskId);
winFormView.Initialize(args, viewSettings);
AddActiveForm(taskId, viewSettings.Name, winFormView);
AddActiveView(taskId, winFormView, viewSettings.Name);
LayoutControlsIfRequired(viewSettings, winFormView);
winFormView.Activated += new EventHandler(Form_Activated);
winFormView.Closed += new EventHandler(Form_Closed);
//Get the parent form
Form parentForm = (Form)GetProperty(taskId, ParentFormKey);
if (winFormView.IsMdiContainer || viewSettings.CanHaveFloatingWindows)
{
StoreProperty(taskId, ParentFormKey, winFormView);
}
else if (parentForm != null)
{
if (parentForm.IsMdiContainer)
{
winFormView.MdiParent = parentForm;
}
else if (viewSettings.IsFloatable)
{
winFormView.TopLevel = true;
parentForm.AddOwnedForm(winFormView);
winFormView.Show();
}
}
if (viewSettings.IsOpenModal)
{
ShowModal(winFormView, previousView, taskId, parentForm);
}
else
{
winFormView.Show();
}
return(winFormView);
}
/// <summary>
/// Updates the current view.
/// </summary>
private void Form_Activated(object source, EventArgs e)
{
WindowsFormView winFormView = (WindowsFormView)source;
State state = winFormView.Controller.State;
//Get the views related to the current task
Hashtable taskActiveViews = (Hashtable)_activeViews[state.TaskId];
//Get the view related to the form that fires this event
string currentView = (string)taskActiveViews[source];
//Update the state current view
if (currentView != null)
{
state.CurrentView = currentView;
}
}
private void ShowModal(WindowsFormView winFormView, string previousView, Guid taskId, object parentForm)
{
if (previousView != null)
{
//Get the current form
ViewSettings previousViewSettings = UIPConfiguration.Config.GetViewSettingsFromName(previousView);
if (previousViewSettings == null)
{
throw new UIPException(Resource.ResourceManager.FormatMessage(Resource.Exceptions.RES_ExceptionViewConfigNotFound, previousView));
}
WindowsFormView previousForm = GetActiveForm(taskId, previousView);
winFormView.ShowDialog((IWin32Window)previousForm);
}
else
{
//the previous view is unknown, so the first view of the navgraph is modal,
// as a last resort we try to get the parentForm from our _properties.
winFormView.ShowDialog((IWin32Window)parentForm);
}
}
private void AddActiveView(Guid taskId, WindowsFormView view, string viewName)
{
GetActiveViews(taskId)[view] = viewName;
}
private void AddActiveForm(Guid taskId, string viewName, WindowsFormView view)
{
GetActiveForms(taskId)[viewName] = view;
}