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/*******************************************************************************
* Copyright (c) 2000, 2018 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
*******************************************************************************/
package org.eclipse.ui.console.actions;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.console.ConsolePlugin;
import org.eclipse.ui.console.IConsoleConstants;
import org.eclipse.ui.console.TextConsole;
import org.eclipse.ui.internal.console.ConsoleMessages;
import org.eclipse.ui.internal.console.ConsolePluginImages;
import org.eclipse.ui.internal.console.IConsoleHelpContextIds;
import org.eclipse.ui.internal.console.IInternalConsoleConstants;
/**
* Clears the output in a text console.
* <p>
* Clients may instantiate this class.
* </p>
* @since 3.0
* @noextend This class is not intended to be subclassed by clients.
*/
public class ClearOutputAction extends Action {
private ITextViewer fViewer;
private TextConsole fIOConsole;
/**
* Constructs a clear output action.
*
* @since 3.1
*/
private ClearOutputAction() {
super(ConsoleMessages.ClearOutputAction_title);
setToolTipText(ConsoleMessages.ClearOutputAction_toolTipText);
setHoverImageDescriptor(ConsolePluginImages.getImageDescriptor(IConsoleConstants.IMG_LCL_CLEAR));
setDisabledImageDescriptor(ConsolePluginImages.getImageDescriptor(IInternalConsoleConstants.IMG_DLCL_CLEAR));
setImageDescriptor(ConsolePluginImages.getImageDescriptor(IInternalConsoleConstants.IMG_ELCL_CLEAR));
PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IConsoleHelpContextIds.CLEAR_CONSOLE_ACTION);
}
/**
* Constructs a clear output action for an I/O console. Clearing an I/O console
* is performed via API on the <code>IOConsole</code>, rather than clearing
* its document directly.
*
* @param ioConsole I/O console the action is associated with
* @since 3.1
*/
public ClearOutputAction(TextConsole ioConsole) {
this();
fIOConsole = ioConsole;
}
/**
* Constructs an action to clear the document associated with a text viewer.
*
* @param viewer viewer whose document this action is associated with
*/
public ClearOutputAction(ITextViewer viewer) {
this();
fViewer = viewer;
}
/* (non-Javadoc)
* @see org.eclipse.jface.action.IAction#run()
*/
@Override
public void run() {
BusyIndicator.showWhile(ConsolePlugin.getStandardDisplay(), () -> {
if (fIOConsole == null) {
IDocument document = fViewer.getDocument();
if (document != null) {
document.set(""); //$NON-NLS-1$
}
fViewer.setSelectedRange(0, 0);
} else {
fIOConsole.clearConsole();
}
});
}
}
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