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/*******************************************************************************
* Copyright (c) 2009, 2018 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
* Red Hat Inc. - Bug 460967
******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.dialogs;
import org.eclipse.core.expressions.*;
import org.eclipse.equinox.internal.p2.ui.model.ProvElement;
import org.eclipse.equinox.internal.p2.ui.viewers.IUDetailsLabelProvider;
import org.eclipse.equinox.p2.ui.ICopyable;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.ISources;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.handlers.IHandlerActivation;
import org.eclipse.ui.handlers.IHandlerService;
import org.eclipse.ui.swt.IFocusService;
public class CopyUtils {
public static final String NEWLINE = System.getProperty("line.separator"); //$NON-NLS-1$
public static final String DELIMITER = "\t"; //$NON-NLS-1$
private static final String NESTING_INDENT = " "; //$NON-NLS-1$
// We never test the control ID so we can use the same ID for all controls
private static final String CONTROL_ID = "org.eclipse.equinox.p2.ui.CopyControlId"; //$NON-NLS-1$
public static String getIndentedClipboardText(Object[] elements, IUDetailsLabelProvider labelProvider) {
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < elements.length; i++) {
if (i > 0)
buffer.append(NEWLINE);
appendIndention(buffer, elements[i]);
buffer.append(labelProvider.getClipboardText(elements[i], DELIMITER));
}
return buffer.toString();
}
/**
* Install a copy popup menu on the specified control and activate the copy handler for the control when
* the control has focus. The handler will be deactivated when the control is disposed.
*
* @param copyable the copyable that will perform the copy
* @param control the control on which to install the menu and handler
*/
public static void activateCopy(ICopyable copyable, final Control control) {
IFocusService fs = PlatformUI.getWorkbench().getService(IFocusService.class);
final IHandlerService hs = PlatformUI.getWorkbench().getService(IHandlerService.class);
new CopyPopup(copyable, control);
if (fs != null && hs != null) {
fs.addFocusTracker(control, CONTROL_ID);
final IHandlerActivation handlerActivation = hs.activateHandler(CopyHandler.ID, new CopyHandler(copyable), new Expression() {
@Override
public EvaluationResult evaluate(IEvaluationContext context) {
return context.getVariable(ISources.ACTIVE_FOCUS_CONTROL_NAME) == control ? EvaluationResult.TRUE : EvaluationResult.FALSE;
}
@Override
public void collectExpressionInfo(final ExpressionInfo info) {
info.addVariableNameAccess(ISources.ACTIVE_FOCUS_CONTROL_NAME);
}
});
control.addDisposeListener(e -> hs.deactivateHandler(handlerActivation));
}
}
private static void appendIndention(StringBuffer buffer, Object element) {
Object parent;
while (element instanceof ProvElement && (parent = ((ProvElement) element).getParent(element)) != null) {
buffer.append(NESTING_INDENT);
element = parent;
}
}
}
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