/// <summary>
/// Initializes a new instance of the AccordionItem class.
/// </summary>
public AccordionItem()
{
// initialize to no action.
ScheduledAction = AccordionAction.None;
DefaultStyleKey = typeof(AccordionItem);
_interaction = new InteractionHelper(this);
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private void Schedule(AccordionAction action)
{
this.ScheduledAction = action;
if (this.ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
this.StartAction();
}
else
{
bool directExecute = this.ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
this.StartAction();
}
}
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private void Schedule(AccordionAction action)
{
#if SILVERLIGHT
if (DesignerProperties.GetIsInDesignMode(this) && ExpandSite != null)
{
switch (action)
{
case AccordionAction.None:
break;
case AccordionAction.Collapse:
ExpandSite.Percentage = 0;
break;
case AccordionAction.Expand:
case AccordionAction.Resize:
ExpandSite.Percentage = 1;
break;
default:
throw new ArgumentOutOfRangeException("action");
}
return;
}
#endif
ScheduledAction = action;
if (ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
StartAction();
}
else
{
bool directExecute = ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
StartAction();
}
}
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private async void Schedule(AccordionAction action)
{
if (Windows.ApplicationModel.DesignMode.DesignModeEnabled && ExpandSite != null)
{
switch (action)
{
case AccordionAction.None:
break;
case AccordionAction.Collapse:
ExpandSite.Percentage = 0;
break;
case AccordionAction.Expand:
case AccordionAction.Resize:
ExpandSite.Percentage = 1;
break;
default:
throw new ArgumentOutOfRangeException("action");
}
return;
}
ScheduledAction = action;
if (ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
StartAction();
}
else
{
bool directExecute = await ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
StartAction();
}
}
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private void Schedule(AccordionAction action)
{
if (DesignerProperties.GetIsInDesignMode(this) && ExpandSite != null)
{
switch (action)
{
case AccordionAction.None:
break;
case AccordionAction.Collapse:
ExpandSite.Percentage = 0;
break;
case AccordionAction.Expand:
case AccordionAction.Resize:
ExpandSite.Percentage = 1;
break;
default:
throw new ArgumentOutOfRangeException("action");
}
return;
}
ScheduledAction = action;
if (ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
StartAction();
}
else
{
bool directExecute = ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
StartAction();
}
}
}
/// <summary>
/// Initializes a new instance of the AccordionItem class.
/// </summary>
public AccordionItem()
{
// initialize to no action.
ScheduledAction = AccordionAction.None;
DefaultStyleKey = typeof(AccordionItem);
_interaction = new InteractionHelper(this);
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private async void Schedule(AccordionAction action)
{
if (Windows.ApplicationModel.DesignMode.DesignModeEnabled && ExpandSite != null)
{
switch (action)
{
case AccordionAction.None:
break;
case AccordionAction.Collapse:
ExpandSite.Percentage = 0;
break;
case AccordionAction.Expand:
case AccordionAction.Resize:
ExpandSite.Percentage = 1;
break;
default:
throw new ArgumentOutOfRangeException("action");
}
return;
}
ScheduledAction = action;
if (ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
StartAction();
}
else
{
bool directExecute = await ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
StartAction();
}
}
}
/// <summary>
/// Allows an AccordionItem to signal the need for a visual action
/// (resize, collapse, expand).
/// </summary>
/// <param name="item">The AccordionItem that signals for a schedule.</param>
/// <param name="action">The action it is scheduling for.</param>
/// <returns>True if the item is allowed to proceed without scheduling,
/// false if the item needs to wait for a signal to execute the action.</returns>
internal virtual bool ScheduleAction(AccordionItem item, AccordionAction action)
{
if (SelectionSequence == SelectionSequence.CollapseBeforeExpand)
{
lock (this)
{
if (!_scheduledActions.Contains(item))
{
_scheduledActions.Add(item);
}
}
if (_currentActioningItem == null)
{
Dispatcher.BeginInvoke(new Action(StartNextAction));
}
return false;
}
else
{
return true;
}
}
/// <summary>
/// Schedules the specified action.
/// </summary>
/// <param name="action">The action to be performed.</param>
private void Schedule(AccordionAction action)
{
this.ScheduledAction = action;
if (this.ParentAccordion == null)
{
// no parentaccordion to notify, so just execute.
this.StartAction();
}
else
{
bool directExecute = this.ParentAccordion.ScheduleAction(this, action);
if (directExecute)
{
this.StartAction();
}
}
}
/// <summary>
/// Allows an AccordionItem to signal the need for a visual action
/// (resize, collapse, expand).
/// </summary>
/// <param name="item">The AccordionItem that signals for a schedule.</param>
/// <param name="action">The action it is scheduling for.</param>
/// <returns>True if the item is allowed to proceed without scheduling,
/// false if the item needs to wait for a signal to execute the action.</returns>
internal async virtual Task<bool> ScheduleAction(AccordionItem item, AccordionAction action)
{
if (SelectionSequence == SelectionSequence.CollapseBeforeExpand)
{
lock (this)
{
if (!_scheduledActions.Contains(item))
{
_scheduledActions.Add(item);
}
}
if (_currentActioningItem == null)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, StartNextAction);
}
return false;
}
else
{
return true;
}
}
