/// <summary> /// Gets a list of available screens ("filters") of the current <see cref="NavigationData"/>. This method can return either filtering screens that are showing /// results of predefined query (<paramref name="onlySearchScreens"/>=<c>false</c>), or custom search screens that allow user input for searching (<paramref name="onlySearchScreens"/>=<c>true</c>). /// </summary> /// <param name="onlySearchScreens"><c>true</c> to return only search screens.</param> /// <returns>List of workflow actions</returns> public IList <WorkflowAction> GetWorkflowActions(bool onlySearchScreens = false) { // Inherit the actions of the parent if necessary. This is particularly the case if this is a sub-view // as we need to ensure that the base/parent view is updated when switching screens as any sub-views // will be popped from the navigation stack. if (_inheritActions) { return(Parent != null?Parent.GetWorkflowActions(onlySearchScreens) : new List <WorkflowAction>()); } IList <WorkflowAction> actions = new List <WorkflowAction>(_availableScreens.Count); int ct = 0; foreach (AbstractScreenData screen in _availableScreens) { if (onlySearchScreens && !(screen is AbstractSearchScreenData)) { continue; } if (!onlySearchScreens && (screen is AbstractSearchScreenData)) { continue; } AbstractScreenData newScreen = screen; // Necessary to be used in closure WorkflowAction action = new MethodDelegateAction(Guid.NewGuid(), _navigationContextName + "->" + newScreen.MenuItemLabel, new Guid[] { _currentWorkflowStateId }, LocalizationHelper.CreateResourceString(newScreen.MenuItemLabel), () => { _currentScreenData.ReleaseScreenData(); _currentScreenData = newScreen; string parent = Parent == null ? _navigationContextName : Parent.CurrentScreenData.GetType().ToString(); // Do not save search screens as selection, they are only a "transient" state. if (!(newScreen is AbstractSearchScreenData)) { SaveScreenHierarchy(parent, newScreen.GetType().ToString()); } IWorkflowManager workflowManager = ServiceRegistration.Get <IWorkflowManager>(); // The last screen could have stepped into a deeper media navigation context when it had produced // sub views. So we first have to revert our workflow to the base workflow id before moving to the new screen. if (workflowManager.CurrentNavigationContext.WorkflowState.StateId == _baseWorkflowStateId) { // If we're already in the correct the state, update the screen manually _currentScreenData.CreateScreenData(this); SwitchToCurrentScreen(); } else { // WF-Manager updates the screen for us workflowManager.NavigatePopToState(_baseWorkflowStateId, false); } }) { DisplayCategory = Consts.FILTERS_WORKFLOW_CATEGORY, SortOrder = ct++.ToString(), // Sort in the order we have built up the filters }; actions.Add(action); } return(actions); }
protected void BuildWorkflowActions() { _dynamicWorkflowActions = new List <WorkflowAction>(_availableScreens.Count); int ct = 0; foreach (AbstractScreenData screen in _availableScreens) { AbstractScreenData newScreen = screen; // Necessary to be used in closure WorkflowAction action = new MethodDelegateAction(Guid.NewGuid(), _navigationContextName + "->" + newScreen.MenuItemLabel, new Guid[] { _currentWorkflowStateId }, LocalizationHelper.CreateResourceString(newScreen.MenuItemLabel), () => { _currentScreenData.ReleaseScreenData(); _currentScreenData = newScreen; IWorkflowManager workflowManager = ServiceRegistration.Get <IWorkflowManager>(); // The last screen could have stepped into a deeper media navigation context when it had produced // sub views. So we first have to revert our workflow to the base workflow id before moving to the new screen. if (workflowManager.CurrentNavigationContext.WorkflowState.StateId == _baseWorkflowStateId) { // If we're already in the correct the state, update the screen manually _currentScreenData.CreateScreenData(this); SwitchToCurrentScreen(); } else { // WF-Manager updates the screen for us workflowManager.NavigatePopToState(_baseWorkflowStateId, false); } }) { DisplayCategory = Consts.FILTERS_WORKFLOW_CATEGORY, SortOrder = ct++.ToString(), // Sort in the order we have built up the filters }; _dynamicWorkflowActions.Add(action); } }
/// <summary> /// Restores resources which are needed by the current screen. /// </summary> public void Enable() { _currentScreenData.CreateScreenData(this); UpdateLayout(); }
/// <summary> /// Restores resources which are needed by the current screen. /// </summary> public void Enable() { _currentScreenData.CreateScreenData(this); }