Attachment 257891 Details for Bug 481987 – Snippet to reproduce the problem

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Snippet to reproduce the problem

Snippet.java (text/plain), 4.93 KB, created by Michael Klein

on 2015-11-12 02:40:03 EST

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Description:

Filename:

MIME Type:

Creator: Michael Klein

Created: 2015-11-12 02:40:03 EST

Size: 4.93 KB

patch

obsolete

>import org.eclipse.jface.action.Action;
>import org.eclipse.jface.action.ActionContributionItem;
>import org.eclipse.jface.action.IMenuListener;
>import org.eclipse.jface.action.IMenuManager;
>import org.eclipse.jface.action.MenuManager;
>import org.eclipse.jface.action.Separator;
>import org.eclipse.jface.viewers.IStructuredSelection;
>import org.eclipse.jface.viewers.ITreeContentProvider;
>import org.eclipse.jface.viewers.LabelProvider;
>import org.eclipse.jface.viewers.TreeViewer;
>import org.eclipse.jface.viewers.Viewer;
>import org.eclipse.rap.rwt.application.EntryPoint;
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.layout.GridData;
>import org.eclipse.swt.layout.GridLayout;
>import org.eclipse.swt.widgets.Control;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Menu;
>import org.eclipse.swt.widgets.Shell;
>import org.eclipse.swt.widgets.Tree;
>
>public class Snippet implements EntryPoint {
>	
>	private TreeViewer viewer;
>
>	@Override
>	public int createUI() {
>		Display display = new Display();
>		Shell shell = new Shell(display, SWT.TITLE);
>		createContent(shell);
>		shell.layout();
>		shell.open();
>		return 0;
>	}
>
>	private void createContent(Shell shell) {
>		shell.setLayout(new GridLayout(1, false));
>
>		Tree tree = new Tree(shell, SWT.NONE | SWT.MULTI);
>		tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
>		viewer = new TreeViewer(tree);
>		viewer.setLabelProvider(new LabelProvider());
>
>		viewer.setContentProvider(new ITreeContentProvider() {
>			@Override
>			public Object[] getElements(Object inputElement) {
>				return new Object[] {"Root"};
>			}
>			@Override
>			public Object[] getChildren(Object parentElement) {
>				if (hasChildren(parentElement)) {
>					String[] input = new String[10];
>					for (int i = 0; i < input.length; i++) {
>						input[i] = "Leaf " + i;
>					}
>					return input;
>				}
>				return new Object[0];
>			}
>			@Override
>			public boolean hasChildren(Object element) {
>				return element.toString().startsWith("Root");
>			}
>			@Override
>			public void dispose() {
>			}
>			@Override
>			public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
>			}
>			@Override
>			public Object getParent(Object element) {
>				return null;
>			}
>		});
>		
>		viewer.setInput(new Object[0]);
>		viewer.expandAll();
>		
>		MenuManager contextMenuManager = new MenuManager();
>		Control control = viewer.getControl();
>		Menu contextMenu = contextMenuManager.createContextMenu(control);
>		
>		contextMenuManager.add(new Separator("sepRootLeaf-first"));
>		contextMenuManager.appendToGroup("sepRootLeaf-first", new RootLeafMenuItem("A (root && leaf)"));
>		contextMenuManager.appendToGroup("sepRootLeaf-first", new RootLeafMenuItem("B (root && leaf)"));
>		contextMenuManager.appendToGroup("sepRootLeaf-first", new RootLeafMenuItem("C (root && leaf)"));
>		contextMenuManager.add(new Separator("sepRoot"));
>		contextMenuManager.appendToGroup("sepRoot", new RootMenuItem("A (root)"));
>		contextMenuManager.appendToGroup("sepRoot", new RootMenuItem("B (root)"));
>		contextMenuManager.appendToGroup("sepRoot", new RootMenuItem("C (root)"));
>		contextMenuManager.add(new Separator("sepRootLeaf-second"));
>		contextMenuManager.appendToGroup("sepRootLeaf-second", new RootLeafMenuItem("D (root && leaf)"));
>		contextMenuManager.appendToGroup("sepRootLeaf-second", new RootLeafMenuItem("E (root && leaf)"));
>		contextMenuManager.appendToGroup("sepRootLeaf-second", new RootLeafMenuItem("F (root && leaf)"));
>		contextMenuManager.add(new Separator("sepLeaf"));
>		contextMenuManager.appendToGroup("sepLeaf", new LeafMenuItem("A (leaf)"));
>		contextMenuManager.appendToGroup("sepLeaf", new LeafMenuItem("B (leaf)"));
>		contextMenuManager.appendToGroup("sepLeaf", new LeafMenuItem("C (leaf)"));
>		
>    	contextMenuManager.addMenuListener(new IMenuListener() {
>			@Override
>			public void menuAboutToShow(IMenuManager manager) {
>				manager.update(true);
>    		}
>    	});
>    	control.setMenu(contextMenu);
>	}
>	
>	private class RootMenuItem extends ActionContributionItem {
>		public RootMenuItem(String label) {
>			super(new Action(label) {});
>		}
>		@Override
>		public boolean isVisible() {
>			IStructuredSelection sel = (IStructuredSelection)viewer.getSelection();
>			if (!sel.isEmpty()) {
>				if (sel.getFirstElement().toString().equals("Root")) {
>					return true;
>				}
>			}
>			return false;
>		}
>	}
>
>	private class LeafMenuItem extends ActionContributionItem {
>		public LeafMenuItem(String label) {
>			super(new Action(label) {});
>		}
>		@Override
>		public boolean isVisible() {
>			IStructuredSelection sel = (IStructuredSelection)viewer.getSelection();
>			if (!sel.isEmpty()) {
>				if (sel.getFirstElement().toString().startsWith("Leaf")) {
>					return true;
>				}
>			}
>			return false;
>		}
>	}
>	
>	private class RootLeafMenuItem extends ActionContributionItem {
>		public RootLeafMenuItem(String label) {
>			super(new Action(label) {});
>		}
>	}
>	
>}

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Attachments on bug 481987: 257890 | 257891