| /******************************************************************************* |
| * Copyright (c) 2008, 2016 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 |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.ui.dialogs; |
| |
| import org.eclipse.equinox.internal.p2.ui.model.CategoryElement; |
| import org.eclipse.equinox.internal.p2.ui.model.IIUElement; |
| import org.eclipse.equinox.internal.p2.ui.viewers.IUColumnConfig; |
| import org.eclipse.equinox.p2.metadata.IInstallableUnit; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.ui.dialogs.PatternFilter; |
| |
| /** |
| * A class that handles filtering IU's based on a supplied matching string. |
| * |
| * @since 3.4 |
| * |
| */ |
| public class AvailableIUPatternFilter extends PatternFilter { |
| |
| boolean checkName, checkDescription, checkVersion, checkId = false; |
| String patternString; |
| |
| /** |
| * Create a new instance of a AvailableIUPatternFilter |
| */ |
| public AvailableIUPatternFilter(IUColumnConfig[] columnConfig) { |
| super(); |
| for (IUColumnConfig element : columnConfig) { |
| int field = element.getColumnType(); |
| switch (field) { |
| case IUColumnConfig.COLUMN_ID: |
| checkId = true; |
| break; |
| case IUColumnConfig.COLUMN_NAME: |
| checkName = true; |
| break; |
| case IUColumnConfig.COLUMN_DESCRIPTION: |
| checkDescription = true; |
| break; |
| case IUColumnConfig.COLUMN_VERSION: |
| checkVersion = true; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| } |
| |
| @Override |
| public boolean isElementSelectable(Object element) { |
| return element instanceof IIUElement && !(element instanceof CategoryElement); |
| } |
| |
| /* |
| * Overridden to remember the pattern string for an optimization in |
| * isParentMatch |
| */ |
| @Override |
| public void setPattern(String patternString) { |
| super.setPattern(patternString); |
| this.patternString = patternString; |
| } |
| |
| /* |
| * Overridden to avoid getting children unless there is actually a filter. |
| */ |
| @Override |
| protected boolean isParentMatch(Viewer viewer, Object element) { |
| if (patternString == null || patternString.length() == 0) |
| return true; |
| return super.isParentMatch(viewer, element); |
| } |
| |
| @Override |
| protected boolean isLeafMatch(Viewer viewer, Object element) { |
| if (element instanceof CategoryElement) { |
| return false; |
| } |
| |
| String text = null; |
| if (element instanceof IIUElement) { |
| IInstallableUnit iu = ((IIUElement) element).getIU(); |
| if (checkName) { |
| // Get the iu name in the default locale |
| text = iu.getProperty(IInstallableUnit.PROP_NAME, null); |
| if (text != null && wordMatches(text)) |
| return true; |
| // Get the iu description in the default locale |
| text = iu.getProperty(IInstallableUnit.PROP_DESCRIPTION, null); |
| if (text != null && wordMatches(text)) |
| return true; |
| } |
| if (checkId || (checkName && text == null)) { |
| text = iu.getId(); |
| if (wordMatches(text)) { |
| return true; |
| } |
| } |
| if (!checkName && checkDescription) { |
| // Get the iu description in the default locale |
| text = iu.getProperty(IInstallableUnit.PROP_DESCRIPTION, null); |
| if (text != null && wordMatches(text)) |
| return true; |
| } |
| if (checkVersion) { |
| text = iu.getVersion().toString(); |
| if (wordMatches(text)) |
| return true; |
| } |
| } |
| return false; |
| } |
| } |