| /******************************************************************************* |
| * Copyright (c) 2003, 2006 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.internal.progress; |
| |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * The ProgressContentProvider is the content provider used for classes that |
| * listen to the progress changes. |
| */ |
| public abstract class ProgressContentProvider implements |
| IProgressUpdateCollector, IStructuredContentProvider { |
| |
| /** |
| * Return whether or not we check the preferences or overide. |
| */ |
| private boolean canShowDebug = false; |
| |
| /** |
| * Create a new instance of the receiver with all of the |
| * default values. |
| */ |
| public ProgressContentProvider() { |
| ProgressViewUpdater.getSingleton().addCollector(this); |
| } |
| |
| /** |
| * Create a new instance of the receiver with a flag to |
| * indicate if there will be debug info shown or not. |
| * @param debug If true debug information will be shown |
| * if the debug flag in the ProgressManager is true. |
| */ |
| public ProgressContentProvider(boolean debug) { |
| this(); |
| canShowDebug = debug; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| |
| return ProgressManager.getInstance().getRootElements(debug()); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| ProgressViewUpdater.getSingleton().removeCollector(this); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, |
| * java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| //No change when input changes |
| } |
| |
| /** |
| * Return whether or not we are debugging. Check the |
| * system settings unless we are overiding them. |
| * @return boolean <code>true</code> if debug |
| * (system) jobs are being shown. |
| */ |
| public boolean debug(){ |
| if(!canShowDebug) { |
| return false; |
| } |
| return ProgressViewUpdater.getSingleton().debug; |
| |
| } |
| |
| } |