private void InitializeArrangers()
{
foreach (var arranger in Items.Values)
{
arranger.OnItemsChanged -= _arrangerItemsChangedHandler.Handler;
}
DateTime date = StartDate;
for (int i = 0; i < 7; i++, date = date.AddDays(1))
{
var arranger = DayScheduleItemsArranger.Create(
account: Account,
semesterItems: SemesterViewItemsGroup,
scheduleGroup: MainScreenViewModel.ScheduleViewItemsGroup,
date: date,
heightOfHour: _heightOfHour,
spacingWhenNoAdditionalItems: _spacingWhenNoAdditionalItems,
spacingWithAdditionalItems: _spacingWithAdditionalItems,
widthOfCollapsed: WidthOfCollapsed,
includeHomeworkAndHolidays: true);
arranger.OnItemsChanged += _arrangerItemsChangedHandler.Handler;
Items[date.DayOfWeek] = arranger;
}
CalibrateMaxStartEndTimes();
UpdateHasAllDayItems();
NotifyDisplayDatesChanged();
}
/// <summary>
/// You CAN call this multiple times, it'll successfully clear previous
/// </summary>
/// <param name="classes"></param>
/// <param name="date"></param>
public async void Initialize(SemesterItemsViewGroup viewModel, DateTime date)
{
ViewModel = viewModel;
Date = date;
try
{
_request++;
var currRequest = _request;
await viewModel.LoadingTask;
if (currRequest != _request)
{
// Another initialize happened while loading, so stop here on this old request
// (No concern about int overflow since it wraps by default)
return;
}
if (_arrangedItemsOnItemsChangedHandler == null)
{
_arrangedItemsOnItemsChangedHandler = new WeakEventHandler <EventArgs>(_arrangedItems_OnItemsChanged).Handler;
}
else if (_arrangedItems != null)
{
_arrangedItems.OnItemsChanged -= _arrangedItemsOnItemsChangedHandler;
}
_arrangedItems = DayScheduleItemsArranger.Create(PowerPlannerApp.Current.GetCurrentAccount(), ViewModel, PowerPlannerApp.Current.GetMainScreenViewModel().ScheduleViewItemsGroup, Date, TIME_INDICATOR_SIZE + GAP_SIZE, MyCollapsedEventItem.SPACING_WITH_NO_ADDITIONAL, MyCollapsedEventItem.SPACING_WITH_ADDITIONAL, MyCollapsedEventItem.WIDTH_OF_COLLAPSED_ITEM, includeTasksAndEventsAndHolidays: true);
_arrangedItems.OnItemsChanged += _arrangedItemsOnItemsChangedHandler;
render();
if (_holidaysOnDay != null && _holidaysChangedHandler != null)
{
_holidaysOnDay.CollectionChanged -= _holidaysChangedHandler;
}
if (_holidaysChangedHandler == null)
{
_holidaysChangedHandler = new WeakEventHandler <NotifyCollectionChangedEventArgs>(HolidaysOnDay_CollectionChanged).Handler;
}
_holidaysOnDay = HolidaysOnDay.Create(viewModel.Items, date);
_holidaysOnDay.CollectionChanged += _holidaysChangedHandler;
_holidaysItemsWrapper.ItemsSource = _holidaysOnDay;
UpdateHolidayOpacity();
}
// We want to allow ObjectDisposed to bubble up, so recyclers can know to dispose the view
catch (ObjectDisposedException) { throw; }
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
}
}
public async void Initialize(SemesterItemsViewGroup semesterItems, DateTime date)
{
SemesterItems = semesterItems;
Date = date;
try
{
_request++;
var currRequest = _request;
await semesterItems.LoadingTask;
if (currRequest != _request)
{
// Another initialize happened while loading, so stop here on this old request
// (No concern about int overflow since it wraps by default)
return;
}
if (_currHolidays != null && _currHolidaysChangedHandler != null)
{
_currHolidays.CollectionChanged -= _currHolidaysChangedHandler;
_currHolidays = null;
}
_currHolidays = HolidaysOnDay.Create(semesterItems.Items, Date);
_currHolidaysChangedHandler = new WeakEventHandler <NotifyCollectionChangedEventArgs>(_currHolidays_CollectionChanged).Handler;
_currHolidays.CollectionChanged += _currHolidaysChangedHandler;
_holidaysItemsSourceAdapter.ItemsSource = _currHolidays;
UpdateHolidaysBehavior();
if (_arrangedItemsOnItemsChangedHandler == null)
{
_arrangedItemsOnItemsChangedHandler = new WeakEventHandler <EventArgs>(_arrangedItems_OnItemsChanged).Handler;
}
else if (_arrangedItems != null)
{
_arrangedItems.OnItemsChanged -= _arrangedItemsOnItemsChangedHandler;
}
_arrangedItems = DayScheduleItemsArranger.Create(PowerPlannerApp.Current.GetCurrentAccount(), semesterItems, PowerPlannerApp.Current.GetMainScreenViewModel().ScheduleViewItemsGroup, Date, HEIGHT_OF_HOUR, UIScheduleViewEventItemCollapsed.SPACING_WITH_NO_ADDITIONAL, UIScheduleViewEventItemCollapsed.SPACING_WITH_ADDITIONAL, UIScheduleViewEventItemCollapsed.WIDTH_OF_COLLAPSED_ITEM, includeTasksAndEventsAndHolidays: true);
_arrangedItems.OnItemsChanged += _arrangedItemsOnItemsChangedHandler;
render();
}
catch (Exception ex)
{
// There might have been a data error loading the main data, don't want to crash because of that
TelemetryExtension.Current?.TrackException(ex);
}
}
public void Deinitialize()
{
// Make sure to cancel the async initialize
_request++;
if (_arrangedItems != null && _arrangedItemsOnItemsChangedHandler != null)
{
_arrangedItems.OnItemsChanged -= _arrangedItemsOnItemsChangedHandler;
}
if (_holidaysOnDay != null && _holidaysChangedHandler != null)
{
_holidaysOnDay.CollectionChanged -= _holidaysChangedHandler;
}
_arrangedItems = null;
_holidaysOnDay = null;
if (_holidaysItemsWrapper != null)
{
_holidaysItemsWrapper.ItemsSource = null;
}
}