/// <summary>
/// <see cref="AutomationPeer.GetAutomationControlTypeCore"/>
/// </summary>
public override object GetPattern(PatternInterface patternInterface)
{
object returnValue = null;
if (patternInterface == PatternInterface.Text)
{
if (_textPattern == null)
{
if (Owner is IServiceProvider)
{
ITextContainer textContainer = ((IServiceProvider)Owner).GetService(typeof(ITextContainer)) as ITextContainer;
if (textContainer != null)
{
_textPattern = new TextAdaptor(this, textContainer);
}
}
}
returnValue = _textPattern;
}
else
{
returnValue = base.GetPattern(patternInterface);
}
return(returnValue);
}
///
override public object GetPattern(PatternInterface patternInterface)
{
object returnValue = null;
RichTextBox owner = (RichTextBox)Owner;
if (patternInterface == PatternInterface.Text)
{
if (_textPattern == null)
{
_textPattern = new TextAdaptor(this, owner.TextContainer);
}
return(_textPattern);
}
else
{
if (patternInterface == PatternInterface.Scroll)
{
if (owner.ScrollViewer != null)
{
returnValue = owner.ScrollViewer.CreateAutomationPeer();
((AutomationPeer)returnValue).EventsSource = this;
}
}
else
{
returnValue = base.GetPattern(patternInterface);
}
}
return(returnValue);
}
///
override public object GetPattern(PatternInterface patternInterface)
{
object returnValue = null;
if (patternInterface == PatternInterface.Value)
{
returnValue = this;
}
if (patternInterface == PatternInterface.Text)
{
if (_textPattern == null)
{
_textPattern = new TextAdaptor(this, ((TextBoxBase)Owner).TextContainer);
}
return(_textPattern);
}
if (patternInterface == PatternInterface.Scroll)
{
TextBox owner = (TextBox)Owner;
if (owner.ScrollViewer != null)
{
returnValue = owner.ScrollViewer.CreateAutomationPeer();
((AutomationPeer)returnValue).EventsSource = this;
}
}
if (patternInterface == PatternInterface.SynchronizedInput)
{
returnValue = base.GetPattern(patternInterface);
}
return(returnValue);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="owner">Owner of the AutomationPeer.</param>
public DocumentAutomationPeer(FrameworkContentElement owner)
: base(owner)
{
if (owner is IServiceProvider)
{
_textContainer = ((IServiceProvider)owner).GetService(typeof(ITextContainer)) as ITextContainer;
if (_textContainer != null)
{
_textPattern = new TextAdaptor(this, _textContainer);
}
}
}
///
public RichTextBoxAutomationPeer(RichTextBox owner) : base(owner)
{
_textPattern = new TextAdaptor(this, owner.TextContainer);
}
/// <summary>
/// Convert TextPointers to ITextRangeProvider
/// </summary>
private ITextRangeProvider TextRangeFromTextPointers(TextPointer rangeStart, TextPointer rangeEnd)
{
TextAdaptor textAdaptor = GetPattern(PatternInterface.Text) as TextAdaptor;
return(textAdaptor?.TextRangeFromTextPointers(rangeStart, rangeEnd));
}
///
public TextBoxAutomationPeer(TextBox owner) : base(owner)
{
_textPattern = new TextAdaptor(this, ((TextBoxBase)owner).TextContainer);
}