| /******************************************************************************* |
| * Copyright (c) 2016, 1027 Red Hat, Inc. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * Contributors: |
| * Red Hat Inc. - initial API and implementation and/or initial documentation |
| *******************************************************************************/ |
| package org.eclipse.wst.jsdt.js.npm.internal.ui; |
| |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IResourceChangeEvent; |
| import org.eclipse.core.resources.IResourceChangeListener; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.wst.jsdt.js.common.build.system.ITask; |
| import org.eclipse.wst.jsdt.js.common.build.system.Location; |
| import org.eclipse.wst.jsdt.js.npm.NpmPlugin; |
| import org.eclipse.wst.jsdt.js.npm.PackageJson; |
| import org.eclipse.wst.jsdt.js.npm.internal.NpmScriptTask; |
| import org.eclipse.wst.jsdt.js.npm.util.NpmUtil; |
| |
| /** |
| * Scans the package.json file and extracts the names of the available scripts |
| * to run. |
| * |
| * @author Shane Bryzak |
| * |
| */ |
| public class NpmScriptContentProvider implements ITreeContentProvider, IResourceChangeListener { |
| |
| private Viewer viewer; |
| private IResource resource; |
| |
| protected static final Object[] EMPTY_ARRAY = new Object[0]; |
| |
| @Override |
| public void dispose() { |
| if (resource != null) { |
| resource.getWorkspace().removeResourceChangeListener(this); |
| resource = null; |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface |
| * .viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (resource != null) { |
| resource.getWorkspace().removeResourceChangeListener(this); |
| } |
| |
| resource = (IResource) newInput; |
| |
| if (resource != null) { |
| resource.getWorkspace().addResourceChangeListener(this, IResourceChangeEvent.POST_CHANGE); |
| } |
| |
| this.viewer = viewer; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(Object) |
| */ |
| @Override |
| public Object[] getChildren(Object parentNode) { |
| if (parentNode instanceof IFile) { |
| try { |
| Set<ITask> tasks = new HashSet<ITask>(); |
| |
| PackageJson packageJson = NpmUtil.parsePackageJsonFile((IFile) parentNode); |
| |
| if (packageJson != null && packageJson.getScripts() != null) { |
| for (String scriptName : packageJson.getScripts().keySet()) { |
| tasks.add( |
| new NpmScriptTask(((IFile) parentNode), scriptName, null, false, new Location(0, 1))); |
| } |
| } |
| |
| return tasks.toArray(); |
| } catch (Exception ex) { |
| NpmPlugin.logError(ex, ex.getMessage()); |
| } |
| } |
| |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(Object) |
| */ |
| @Override |
| public Object getParent(Object element) { |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(Object) |
| */ |
| @Override |
| public boolean hasChildren(Object element) { |
| return element instanceof IFile; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.viewers.IStructuredContentProvider#getElements(Object) |
| */ |
| @Override |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof List) { |
| return ((List<?>) inputElement).toArray(); |
| } |
| if (inputElement instanceof Object[]) { |
| return (Object[]) inputElement; |
| } |
| return EMPTY_ARRAY; |
| } |
| |
| @Override |
| public void resourceChanged(IResourceChangeEvent arg0) { |
| Display.getDefault().asyncExec(new Runnable() { |
| @Override |
| public void run() { |
| viewer.refresh(); |
| } |
| }); |
| } |
| } |