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// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (c) 2009 Novell, Inc. (http://www.novell.com)
//
// Authors:
// Mario Carrion <mcarrion@novell.com>
//
using System;
using System.Windows;
using System.Windows.Automation;
using System.Windows.Automation.Provider;
using SWF = System.Windows.Forms;
using Mono.UIAutomation.Winforms.Events;
using Mono.UIAutomation.Winforms.Events.TextBox;
namespace Mono.UIAutomation.Winforms.Behaviors.TextBox
{
internal class CaretProviderBehavior
: ProviderBehavior, ICaretProvider
{
#region Constructor
public CaretProviderBehavior (FragmentControlProvider provider)
: base (provider)
{
}
#endregion
#region ProviderBehavior: Specialization
public override AutomationPattern ProviderPattern {
get { return CaretPatternIdentifiers.Pattern; }
}
public override void Connect ()
{
Provider.SetEvent (ProviderEventType.TextPatternCaretMovedEvent,
new TextPatternCaretMovedEvent (Provider));
}
public override void Disconnect ()
{
Provider.SetEvent (ProviderEventType.TextPatternCaretMovedEvent,
null);
}
#endregion
#region ICaretProvider Implementation
public int CaretOffset {
get {
// TODO: This won't scale; we really should
// find a better way of doing it
SWF.Document document = Document;
if (document.caret.line.line_no > document.Lines)
return Text.Length;
return Document.LineTagToCharIndex
(document.caret.line, document.CaretPosition);
}
}
public bool SetCaretOffset (int offset)
{
if (offset < 0)
return false;
SWF.Document document = Document;
int curPos = 0;
SWF.Line line = null;
for (int i = 1;i <= document.Lines;i++) {
line = document.GetLine (i);
int length = line.Text.ToString().Length;
if (curPos + length >= offset) {
document.PositionCaret (line, offset - curPos);
return true;
}
curPos += length;
}
return false;
}
public string GetSelection (int selectionNum, out int startOffset, out int endOffset)
{
startOffset = endOffset = CaretOffset;
if (selectionNum != 0)
return null;
SWF.TextBoxBase textBoxBase = TextBoxBase;
if (TextBoxBase.Document.SelectionVisible) {
startOffset = textBoxBase.SelectionStart;
endOffset = startOffset + textBoxBase.SelectionLength;
return textBoxBase.Text.Substring (startOffset, endOffset - startOffset);
}
return null;
}
#endregion
#region Private Fields
private SWF.Document Document {
get { return TextBoxBase.Document; }
}
private SWF.TextBoxBase TextBoxBase {
get {
if (Provider.Control is SWF.TextBoxBase)
return (SWF.TextBoxBase)Provider.Control;
else if (Provider.Control is SWF.UpDownBase)
return ((SWF.UpDownBase)Provider.Control).txtView;
else
throw new Exception ("TextBoxBase: Unknown type: " + Provider.Control);
}
}
private string Text {
get {
if (TextBoxBase is SWF.MaskedTextBox)
return ((SWF.MaskedTextBox) TextBoxBase).MaskedTextProvider.ToDisplayString ();
else
return TextBoxBase.Text;
}
set { TextBoxBase.Text = value; }
}
#endregion
}
}
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