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/*******************************************************************************
* Copyright (c) 2016 Red Hat Inc. 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:
* Mickael Istria, Sopot Cela (Red Hat Inc.)
*******************************************************************************/
package org.eclipse.ui.genericeditor.tests;
import static org.junit.Assert.assertEquals;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.core.resources.IMarker;
import org.eclipse.jface.text.AbstractHoverInformationControlManager;
import org.eclipse.jface.text.AbstractInformationControlManager;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.TextViewer;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.FileEditorInput;
import org.eclipse.ui.texteditor.AbstractTextEditor;
/**
* @since 3.11
*
*/
public class HoverTest {
private AbstractTextEditor editor;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
GenericEditorTestUtils.setUpBeforeClass();
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
GenericEditorTestUtils.tearDownAfterClass();
}
@Before
public void setUp() throws Exception {
GenericEditorTestUtils.closeIntro();
editor = (AbstractTextEditor) PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getActivePage().openEditor(new FileEditorInput(GenericEditorTestUtils.getFile()), "org.eclipse.ui.genericeditor.GenericEditor");
}
@After
public void tearDown() throws Exception {
editor.getSite().getPage().closeEditor(editor, false);
editor= null;
}
@Test
public void testHover() throws Exception {
assertEquals("Alrighty!", getHoverData());
}
@Test
public void testProblemHover() throws Exception {
String problemMessage = "Huston...";
IMarker marker = null;
try {
marker = GenericEditorTestUtils.getFile().createMarker(IMarker.PROBLEM);
marker.setAttribute(IMarker.LINE_NUMBER, 1);
marker.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_ERROR);
marker.setAttribute(IMarker.CHAR_START, 0);
marker.setAttribute(IMarker.CHAR_END, 5);
marker.setAttribute(IMarker.MESSAGE, problemMessage);
assertEquals(problemMessage, getHoverData());
} finally {
if (marker != null) {
marker.delete();
}
}
}
private Object getHoverData() throws Exception {
this.editor.selectAndReveal(2, 0);
// sending event to trigger hover computation
StyledText editorTextWidget = (StyledText) this.editor.getAdapter(Control.class);
editorTextWidget.getShell().forceActive();
editorTextWidget.getShell().setActive();
editorTextWidget.getShell().setFocus();
editorTextWidget.getShell().getDisplay().wake();
Event hoverEvent = new Event();
hoverEvent.widget = editorTextWidget;
hoverEvent.type = SWT.MouseHover;
hoverEvent.x = editorTextWidget.getClientArea().x + 5;
hoverEvent.y = editorTextWidget.getClientArea().y + 5;
hoverEvent.display = editorTextWidget.getDisplay();
hoverEvent.doit = true;
editorTextWidget.notifyListeners(SWT.MouseHover, hoverEvent);
// Events need to be processed for hover listener to work correctly
long timeout = 1000; //ms
long start = System.currentTimeMillis();
while (start + timeout > System.currentTimeMillis()) {
Display.getDefault().readAndDispatch();
}
// retrieving hover content
Method getSourceViewerMethod= AbstractTextEditor.class.getDeclaredMethod("getSourceViewer");
getSourceViewerMethod.setAccessible(true);
ITextViewer viewer = (ITextViewer) getSourceViewerMethod.invoke(editor);
Field textHoverManagerField= TextViewer.class.getDeclaredField("fTextHoverManager");
textHoverManagerField.setAccessible(true);
AbstractHoverInformationControlManager hover = (AbstractHoverInformationControlManager) textHoverManagerField.get(viewer);
Field informationField = AbstractInformationControlManager.class.getDeclaredField("fInformation");
informationField.setAccessible(true);
Object hoverData = informationField.get(hover);
Thread.sleep(500); // hoverData populated asynchronously
return hoverData;
}
}
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