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/*******************************************************************************
* Copyright (c) 2018 Remain Software
* 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:
* wim.jongman@remainsoftware.com - initial API and implementation
*******************************************************************************/
package org.eclipse.tips.ui;
import org.eclipse.core.runtime.Assert;
import org.eclipse.swt.widgets.Display;
import org.eclipse.tips.core.TipManager;
import org.eclipse.tips.core.TipProvider;
import org.eclipse.tips.core.internal.LogUtil;
import org.eclipse.tips.ui.internal.TipDialog;
/**
* Class to manage the tip providers and start the tip of the day UI.
*
*/
@SuppressWarnings("restriction")
public abstract class DefaultTipManager extends TipManager {
private TipDialog fTipDialog;
/**
* Opens the Tip of the Day dialog. Subclasses may override if they want to
* present the Tips in a different way, e.g. in a view.
*
* @param startUp
* When called from a startup situation, true must be passed for
* <code>pStartup</code>. If in a manual starting situation, false
* must be passed. This enables the manager to decide to skip opening
* the dialog at startup (e.g., no new tip items).
*
* @see #isOpen()
*/
@Override
public TipManager open(boolean startUp) {
if (fOpen && (fTipDialog == null || fTipDialog.isDisposed())) {
fOpen = false;
}
try {
Assert.isTrue(!fOpen, "Tip of the Day already open.");
} catch (Exception e) {
log(LogUtil.error(getClass(), e));
throw e;
}
if (!mustOpen(startUp)) {
return this;
}
fTipDialog = new TipDialog(Display.getCurrent().getActiveShell(), this, TipDialog.DEFAULT_STYLE);
fTipDialog.addDisposeListener(pE -> {
try {
dispose();
} finally {
fOpen = false;
}
});
fTipDialog.open();
fOpen = true;
return this;
}
// Open if not a startup call or if there are unread tips.
private boolean mustOpen(boolean startUp) {
if (!startUp) {
return true;
}
if (startUp && isRunAtStartup()) {
for (TipProvider provider : getProviders()) {
if (provider.isReady() && !provider.getTips(true).isEmpty()) {
return true;
}
}
}
return false;
}
}
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