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/*******************************************************************************
* Copyright (c) 2006, 2017 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.team.internal.ui.synchronize;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.team.internal.ui.*;
import org.eclipse.team.ui.ISharedImages;
import org.eclipse.team.ui.synchronize.ISynchronizePageConfiguration;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.widgets.Hyperlink;
/**
* A changes section that points the user to a mode that has changes when the current mode
* is empty.
*/
public abstract class ForwardingChangesSection extends ChangesSection {
/**
* Shows message to user is no changes are to be shown in the diff
* tree viewer.
*/
private Composite messageArea;
public ForwardingChangesSection(Composite parent, AbstractSynchronizePage page, ISynchronizePageConfiguration configuration) {
super(parent, page, configuration);
}
@Override
protected void initializeChangesViewer() {
calculateDescription();
}
protected void calculateDescription() {
if (getContainer().isDisposed())
return;
if(getVisibleChangesCount() == 0) {
TeamUIPlugin.getStandardDisplay().asyncExec(() -> {
if (!getContainer().isDisposed())
updatePage(getEmptyChangesComposite(getContainer()));
});
} else {
TeamUIPlugin.getStandardDisplay().asyncExec(() -> updatePage(null));
}
}
protected void updatePage(Composite message) {
if (getContainer().isDisposed()) return;
if(messageArea != null) {
messageArea.dispose();
messageArea = null;
}
messageArea = message;
if (message == null) {
Control control = getChangesViewer().getControl();
if (!getContainer().isDisposed() && !control.isDisposed()) {
getContainer().showPage(control);
}
} else {
getContainer().showPage(messageArea);
}
}
protected Composite getEmptyChangesComposite(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(getListBackgroundColor());
GridLayout layout = new GridLayout();
layout.numColumns = 2;
composite.setLayout(layout);
GridData data = new GridData(GridData.FILL_BOTH);
data.grabExcessVerticalSpace = true;
composite.setLayoutData(data);
if(! isThreeWay()) {
createDescriptionLabel(composite,NLS.bind(TeamUIMessages.ChangesSection_noChanges, new String[] { Utils.shortenText(SynchronizeView.MAX_NAME_LENGTH, getConfiguration().getParticipant().getName()) }));
return composite;
}
int allChanges = getChangesCount();
long visibleChanges = getVisibleChangesCount();
if(visibleChanges == 0 && allChanges != 0) {
final int candidateMode = getCandidateMode();
int currentMode = getConfiguration().getMode();
if (candidateMode != currentMode) {
long numChanges = getChangesInMode(candidateMode);
if (numChanges > 0) {
String message;
if(numChanges > 1) {
message = NLS.bind(TeamUIMessages.ChangesSection_filterHidesPlural, new String[] { Long.toString(numChanges), Utils.modeToString(candidateMode) });
} else {
message = NLS.bind(TeamUIMessages.ChangesSection_filterHidesSingular, new String[] { Long.toString(numChanges), Utils.modeToString(candidateMode) });
}
message = NLS.bind(TeamUIMessages.ChangesSection_filterHides, new String[] { Utils.modeToString(getConfiguration().getMode()), message });
Label warning = new Label(composite, SWT.NONE);
warning.setImage(TeamUIPlugin.getPlugin().getImage(ISharedImages.IMG_WARNING_OVR));
Hyperlink link = getForms().createHyperlink(composite, NLS.bind(TeamUIMessages.ChangesSection_filterChange, new String[] { Utils.modeToString(candidateMode) }), SWT.WRAP);
link.addHyperlinkListener(new HyperlinkAdapter() {
@Override
public void linkActivated(HyperlinkEvent e) {
getConfiguration().setMode(candidateMode);
}
});
getForms().getHyperlinkGroup().add(link);
createDescriptionLabel(composite, message);
return composite;
}
}
}
// There is no other mode that can be shown so just indicate that there are no changes
createDescriptionLabel(composite,NLS.bind(TeamUIMessages.ChangesSection_noChanges, new String[] { Utils.shortenText(SynchronizeView.MAX_NAME_LENGTH, getConfiguration().getParticipant().getName()) })); //
return composite;
}
protected Label createDescriptionLabel(Composite parent, String text) {
Label description = new Label(parent, SWT.WRAP);
GridData data = new GridData(GridData.FILL_HORIZONTAL);
data.horizontalSpan = 2;
data.widthHint = 100;
description.setLayoutData(data);
description.setText(text);
description.setBackground(getListBackgroundColor());
return description;
}
protected abstract int getChangesCount();
protected abstract long getChangesInMode(int candidateMode);
protected abstract long getVisibleChangesCount();
protected abstract int getCandidateMode();
}
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