Mercurial > projects > dwt-addons
diff dwtx/jface/text/contentassist/IContextInformationValidator.d @ 129:eb30df5ca28b
Added JFace Text sources
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 23 Aug 2008 19:10:48 +0200 |
parents | |
children | c4fb132a086c |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dwtx/jface/text/contentassist/IContextInformationValidator.d Sat Aug 23 19:10:48 2008 +0200 @@ -0,0 +1,49 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module dwtx.jface.text.contentassist.IContextInformationValidator; + +import dwt.dwthelper.utils; + +import dwtx.jface.text.ITextViewer; + + +/** + * A context information validator is used to determine if + * a displayed context information is still valid or should + * be dismissed. + * <p> + * The interface can be implemented by clients. + * </p> + * + * @see IContextInformationPresenter + */ +public interface IContextInformationValidator { + + /** + * Installs this validator for the given context information. + * + * @param info the context information which this validator should check + * @param viewer the text viewer on which the information is presented + * @param offset the document offset for which the information has been computed + */ + void install(IContextInformation info, ITextViewer viewer, int offset); + + /** + * Returns whether the information this validator is installed on is still valid + * at the given document position. + * + * @param offset the current offset within the document + * @return <code>true</code> if the information also valid at the given document position + */ + bool isContextInformationValid(int offset); +}