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(-)TextViewerHoverManager.java (-31 / +39 lines)
Lines 60-112 Link Here
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		Point location= getHoverEventLocation();
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		Point location= getHoverEventLocation();
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		int offset= computeOffsetAtLocation(location.x, location.y);
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		int offset= computeOffsetAtLocation(location.x, location.y);
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		if (offset == -1)
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		if (offset == -1) {
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			setInformation(null, null);
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			return;
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			return;
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		}
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		final ITextHover hover= fTextViewer.getTextHover(offset);
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		final ITextHover hover= fTextViewer.getTextHover(offset);
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		if (hover == null)
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		if (hover == null) {
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			setInformation(null, null);
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			return;
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			return;
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		}
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		final IRegion region= hover.getHoverRegion(fTextViewer, offset);
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		final IRegion region= hover.getHoverRegion(fTextViewer, offset);
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		if (region == null)
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		if (region == null) {
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			setInformation(null, null);
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			return;
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			return;
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		}
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		final Rectangle area= computeArea(region);
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		final Rectangle area= computeArea(region);
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		if (area == null || area.isEmpty())
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		if (area == null || area.isEmpty()) {
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			setInformation(null, null);
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			return;
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			return;
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		}
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		if (fThread == null) {
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		if (fThread != null) {
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			setInformation(null, null);
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			fThread= new Thread() {
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			return;
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				public void run() {
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		}
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		fThread= new Thread() {
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			public void run() {
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				// http://bugs.eclipse.org/bugs/show_bug.cgi?id=17693
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				try {
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					// http://bugs.eclipse.org/bugs/show_bug.cgi?id=17693
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					if (fThread != null) {
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						String information= hover.getHoverInfo(fTextViewer, region);
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						setInformation(information, area);
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					} else {
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						setInformation(null, null);
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					}
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					try {
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				} finally {
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					synchronized (fMutex) {
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						if (fThread != null) {
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						if (fTextViewer != null)
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							String information= hover.getHoverInfo(fTextViewer, region);
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							fTextViewer.removeTextListener(fStopper);
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							setInformation(information, area);
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						fThread= null;
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						} else {
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							setInformation(null, null);
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						}
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					} finally {
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						synchronized (fMutex) {
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							if (fTextViewer != null)
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								fTextViewer.removeTextListener(fStopper);
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							fThread= null;
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						}
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					}
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					}
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				}
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				}
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			};
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			fThread.setDaemon(true);
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			fThread.setPriority(Thread.MIN_PRIORITY);
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			synchronized (fMutex) {
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				fTextViewer.addTextListener(fStopper);
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				fThread.start();
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			}
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			}
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		};
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		fThread.setDaemon(true);
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		fThread.setPriority(Thread.MIN_PRIORITY);
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		synchronized (fMutex) {
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			fTextViewer.addTextListener(fStopper);
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			fThread.start();
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		}
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		}
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	}
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	}
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