/**
* Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
* Licensed under the terms of the Eclipse Public License (EPL).
* Please see the license.txt included with this distribution for details.
* Any modifications to this file must keep this entire header intact.
*/
/*
* Created on Aug 25, 2004
*
* @author Fabio Zadrozny
*/
package org.python.pydev.editor.codecompletion;
import org.eclipse.jface.bindings.TriggerSequence;
import org.eclipse.jface.text.DefaultInformationControl;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.contentassist.ContentAssistant;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.swt.widgets.Shell;
import org.python.copiedfromeclipsesrc.JDTNotAvailableException;
import org.python.pydev.core.docutils.StringUtils;
import org.python.pydev.editor.PyInformationPresenter;
import com.aptana.shared_core.bindings.KeyBindingHelper;
/**
* @author Fabio Zadrozny
*/
public class PyContentAssistant extends ContentAssistant {
/**
* Keeps a boolean indicating if the last request was an auto-activation or not.
*/
private boolean lastAutoActivated;
/**
* The number of times this content assistant has been activated.
*/
public int lastActivationCount;
public PyContentAssistant() {
this.enableAutoInsert(true);
this.lastAutoActivated = true;
try {
setRepeatedInvocationMode(true);
} catch (Exception e) {
//no need to log
}
try {
setRepeatedInvocationTrigger(KeyBindingHelper.getContentAssistProposalBinding());
} catch (Exception e) {
//no need to log
}
try {
setStatusLineVisible(true);
} catch (Exception e) {
//no need to log
}
}
/**
* Shows the completions available and sets the lastAutoActivated flag
* and updates the lastActivationCount.
*/
@Override
public String showPossibleCompletions() {
lastActivationCount += 1;
lastAutoActivated = false;
try {
return super.showPossibleCompletions();
} catch (RuntimeException e) {
Throwable e1 = e;
while (e1.getCause() != null) {
e1 = e1.getCause();
}
if (e1 instanceof JDTNotAvailableException) {
return e1.getMessage();
}
throw e;
}
}
/**
* @return true if the last time was an auto activation (and updates
* the internal flag regarding it).
*/
public boolean getLastCompletionAutoActivated() {
boolean r = lastAutoActivated;
lastAutoActivated = true;
return r;
}
public void setIterationStatusMessage(String string) {
setStatusMessage(com.aptana.shared_core.string.StringUtils.format(string, getIterationGesture()));
}
private String getIterationGesture() {
TriggerSequence binding = KeyBindingHelper.getContentAssistProposalBinding();
return binding != null ? binding.format() : "completion key";
}
/**
* Available for stopping the completion.
*/
@Override
public void hide() {
super.hide();
}
public static IInformationControlCreator createInformationControlCreator(ISourceViewer sourceViewer) {
return new IInformationControlCreator() {
public IInformationControl createInformationControl(Shell parent) {
return new DefaultInformationControl(parent, new PyInformationPresenter());
}
};
}
}