| /******************************************************************************* |
| * Copyright (c) 2018 Red Hat and others. All rights reserved. |
| * The contents of this file are made available under the terms |
| * of the GNU Lesser General Public License (LGPL) Version 2.1 that |
| * accompanies this distribution (lgpl-v21.txt). The LGPL is also |
| * available at http://www.gnu.org/licenses/lgpl.html. If the version |
| * of the LGPL at http://www.gnu.org is different to the version of |
| * the LGPL accompanying this distribution and there is any conflict |
| * between the two license versions, the terms of the LGPL accompanying |
| * this distribution shall govern. |
| * |
| * Contributors: |
| * Red Hat - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.swt.tests.manual; |
| |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.browser.Browser; |
| import org.eclipse.swt.dnd.DND; |
| import org.eclipse.swt.dnd.DragSource; |
| import org.eclipse.swt.dnd.DragSourceEvent; |
| import org.eclipse.swt.dnd.DragSourceListener; |
| import org.eclipse.swt.dnd.DropTarget; |
| import org.eclipse.swt.dnd.DropTargetAdapter; |
| import org.eclipse.swt.dnd.DropTargetEvent; |
| import org.eclipse.swt.dnd.TextTransfer; |
| import org.eclipse.swt.dnd.Transfer; |
| import org.eclipse.swt.layout.FillLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| |
| |
| /** |
| * Title: Browser does not send DragDetect |
| * How to run: Run snippet. Try to drag text from the browser (left), onto Label (right) |
| * Expected results: "Drag started" should be printed in the console. |
| * Actual results: Nothing is printed in console. DragSource has no impact on browser. |
| * GTK version(s): all |
| * |
| * This snippet has been adopted from Snippet78 |
| */ |
| public class Bug497705_BrowserDragDetect { |
| |
| public static void main (String [] args) { |
| Display display = new Display (); |
| final Shell shell = new Shell (display); |
| shell.setLayout(new FillLayout()); |
| final Browser b = new Browser (shell, SWT.BORDER); |
| b.setText ("TEXT"); |
| final Label label2 = new Label (shell, SWT.BORDER); |
| setDrag (b); //doesn't seem to have an effect. |
| setDrop (label2); |
| shell.setSize (200, 200); |
| shell.open (); |
| while (!shell.isDisposed ()) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| display.dispose (); |
| } |
| |
| public static void setDrag(final Browser browser) { |
| |
| Transfer[] types = new Transfer[] {TextTransfer.getInstance()}; |
| int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK; |
| |
| final DragSource source = new DragSource (browser, operations); |
| source.setTransfer(types); |
| source.addDragListener (new DragSourceListener () { |
| @Override |
| public void dragStart(DragSourceEvent event) { |
| event.doit = (browser.getText ().length () != 0); |
| System.out.println("Drag started"); //not ran. |
| } |
| @Override |
| public void dragSetData (DragSourceEvent event) { |
| event.data = browser.getText (); |
| } |
| @Override |
| public void dragFinished(DragSourceEvent event) { |
| if (event.detail == DND.DROP_MOVE) |
| browser.setText (""); |
| } |
| }); |
| } |
| |
| public static void setDrop (final Label label) { |
| Transfer[] types = new Transfer[] {TextTransfer.getInstance()}; |
| int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK; |
| DropTarget target = new DropTarget(label, operations); |
| target.setTransfer(types); |
| target.addDropListener (new DropTargetAdapter() { |
| @Override |
| public void drop(DropTargetEvent event) { |
| if (event.data == null) { |
| event.detail = DND.DROP_NONE; |
| return; |
| } |
| label.setText ((String) event.data); |
| } |
| }); |
| } |
| } |