public ScrollingStrategyBase()
{
LastDirective = new ScrollingDirective( ActionType.MoveNext, ActionTime.NextTick );
Walker = new TreeWalker( this );
_highlightTicksCount = new Dictionary<IHighlightableElement, int>();
AutoPauseDefaultTick = 5;
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
if( beginScrollingInfo.PreviousElement != this )
IsHighlighting = true;
return scrollingDirective;
}
protected virtual void OnInternalBeat( object sender, EventArgs e )
{
if( LastDirective == null ) LastDirective = new ScrollingDirective( ActionType.MoveNext, ActionTime.NextTick );
//Saving the currently highlighted element
PreviousElement = Walker.Current;
//Move the cursor to the next element
MoveNext( LastDirective.NextActionType );
//update the auto pause tick when the next element is selected
UpdateAutoPauseTicks( LastDirective.NextActionType );
//End highlight on the previous element (if different from the current one)
if( PreviousElement != null )
FireEndHighlight( PreviousElement, Walker.Current );
//Begin highlight on the current element (even if the previous element is also the current element, we send the beginhighlight to give the component the beat)
if( Walker.Current != null )
FireBeginHighlight();
//active the auto pause if CheckAutoPauseCondition return true
ActiveAutoPause();
}
public virtual void GoToElement( HighlightModel.IHighlightableElement element )
{
LastDirective = new ScrollingDirective( ActionType.MoveNext, ActionTime.Immediate );
Walker.Current.EndHighlight( new EndScrollingInfo( Timer.Interval.Ticks, PreviousElement, element ), LastDirective );
Walker.GoTo( element );
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
ResetAutoPause();
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
if( _highlightPrePostChildren )
{
foreach( var p in _preChildren ) p.EndHighlight( endScrollingInfo, scrollingDirective );
foreach( var p in _postChildren ) p.EndHighlight( endScrollingInfo, scrollingDirective );
}
return _element.EndHighlight( endScrollingInfo, scrollingDirective );
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
return scrollingDirective;
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
foreach( var child in Children )
{
child.BeginHighlight( beginScrollingInfo, scrollingDirective );
}
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
Debug.Assert( Dispatcher.CurrentDispatcher == Context.NoFocusManager.ExternalDispatcher, "This method should only be called by the ExternalThread." );
scrollingDirective.NextActionType = ActionType.GoToRelativeRoot;
//allows the repeat of the same key
scrollingDirective.ActionTime = ActionTime.Delayed;
if( KeyDownCommand.CanExecute( null ) )
{
KeyDownCommand.Execute( null );
if( KeyUpCommand.CanExecute( null ) )
{
KeyUpCommand.Execute( null );
}
}
return scrollingDirective;
}
public ScrollingDirective SelectElement(ScrollingDirective scrollingDirective)
{
Execute(null);
return scrollingDirective;
}
private void ProcessTick( ScrollingDirective scrollingDirective )
{
//if we have just entered the root, we need to highlight all the screens, except the one that has been entered.
if( _hasJustBeenEntered )
{
_hasJustBeenEntered = false;
foreach( var node in ChildNodes )
{
if( node.Index != CurrentIndex )
node.IsHighlighted = false;
}
}
//And we move to the next node
if( !CurrentNode.MoveNext() ) //if the node was at the end of its laps
{
if( CurrentNode.IsRoot || (CurrentNode.Parent.IsRoot && CurrentNode.Parent.ChildNodes.Count == 1) ) //we are getting out of the root level, so we release the scroller so that it can scroll on the other devices.
{
CurrentNode = null;
_entered = false;
scrollingDirective.NextActionType = ActionType.MoveNext;
}
else
{
//if the Node had finished its last lap during the last MoveNext, we go up one level
CurrentNode = CurrentNode.Parent;
CurrentNode.Entered();
CurrentNode.MoveNext();
}
}
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
scrollingDirective.NextActionType = ActionType.StayOnTheSame;
if( CurrentNode == null )
{
if( ChildNodes.Count == 1 )
{
CurrentNode = ChildNodes.Single();
CurrentNode.Entered();
}
else
{
CurrentNode = this;
}
_hasJustBeenEntered = true;
_entered = true;
}
else
{
if( CurrentNode.Level < ClickDepth - 1 )
{
CurrentNode = CurrentNode.ChildNodes.ElementAt( CurrentNode.CurrentIndex );
CurrentNode.Entered();
}
else
{
NodeViewModel selectedNode = CurrentNode.ChildNodes[CurrentNode.CurrentIndex];
CK.InputDriver.MouseProcessor.MoveMouseToAbsolutePosition( (int)(selectedNode.OffsetWidth + (selectedNode.Width / 2)), (int)(selectedNode.OffsetHeight + (selectedNode.Height / 2)) );
CurrentNode.ChildNodes.ElementAt( CurrentNode.CurrentIndex ).IsHighlighted = false;
CurrentNode = null;
_entered = false;
ExitAll();
scrollingDirective.NextActionType = ActionType.GoToAbsoluteRoot;
}
}
scrollingDirective.ActionTime = ActionTime.Immediate;
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
if( !_entered ) //we were scrolling the plugin itself (we hadn't entered yet), which had highlighted all the screens
{
foreach( var node in ChildNodes )
{
node.IsHighlighted = false;
}
}
else
{
CurrentNode.ChildNodes.ElementAt( CurrentNode.CurrentIndex ).IsHighlighted = false;
}
return scrollingDirective;
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
//If we haven't entered the children yet, we highlight all of the screens.
//Once a first Select element has been triggered, we start scrolling the screens.
if( CurrentNode == null )
{
foreach( var node in ChildNodes )
{
node.IsHighlighted = true;
}
}
else
{
ProcessTick( scrollingDirective );
}
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
if( endScrollingInfo.ElementToBeHighlighted != this )
IsHighlighting = false;
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
_viewModel.IsWindowHighlighted = false;
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
_editor.Activate();
return scrollingDirective;
}
public ScrollingDirective BeginHighlight(BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective)
{
_selected = false;
IsHighlighted = true;
if(_textTemplate != null) _textTemplate.FocusOnElement(this);
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
foreach( var child in Children )
{
child.EndHighlight( endScrollingInfo, scrollingDirective );
}
return scrollingDirective;
}
public ScrollingDirective EndHighlight(EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective)
{
IsHighlighted = false;
if( !_selected ) _textTemplate.RemoveFocus( this ); //Keep the focus if the text is selected
return scrollingDirective;
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
if( _highlightPrePostChildren )
{
foreach( var p in _preChildren ) p.BeginHighlight( beginScrollingInfo, scrollingDirective );
foreach( var p in _postChildren ) p.BeginHighlight( beginScrollingInfo, scrollingDirective );
}
return _element.BeginHighlight( beginScrollingInfo, scrollingDirective );
}
public ScrollingDirective SelectElement(ScrollingDirective scrollingDirective)
{
_selected = true;
scrollingDirective.NextActionType = HighlightModel.ActionType.GoToAbsoluteRoot;
_textTemplate.FocusOnElement( this );
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
return _element.SelectElement( scrollingDirective );
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
IsHighlighted = true;
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
return scrollingDirective;
}
public ScrollingDirective EndHighlight( EndScrollingInfo endScrollingInfo, ScrollingDirective scrollingDirective )
{
IsHighlighted = false;
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
scrollingDirective.NextActionType = ActionType.EnterChild;
return scrollingDirective;
}
public ScrollingDirective BeginHighlight( BeginScrollingInfo beginScrollingInfo, ScrollingDirective scrollingDirective )
{
_viewModel.IsWindowHighlighted = true;
return scrollingDirective;
}
public ScrollingDirective SelectElement( ScrollingDirective scrollingDirective )
{
_radar.ToNextStep();
//In any case, when we trigger the input when on the radar, we set the NextType as ActionType.StayOnTheSameLocked.
scrollingDirective.NextActionType = ActionType = ActionType.StayOnTheSame;
scrollingDirective.ActionTime = ActionTime.Immediate;
return scrollingDirective;
}
