/**
* Invoke content assist on the given viewer at the given offset, for the given number of pages
* and return the results of each page
*
* @param viewer
* @param offset
* @param pageCount
* @return
* @throws Exception
*/
private static ICompletionProposal[][] getProposals(
StructuredTextViewer viewer, int offset, int pageCount) throws Exception {
// setup the viewer
StructuredTextViewerConfigurationHTML configuration =
new StructuredTextViewerConfigurationHTML();
ContentAssistant contentAssistant =
(ContentAssistant) configuration.getContentAssistant(viewer);
viewer.configure(configuration);
viewer.setSelectedRange(offset, 0);
// get the processor
String partitionTypeID = viewer.getDocument().getPartition(offset).getType();
IContentAssistProcessor processor = contentAssistant.getContentAssistProcessor(partitionTypeID);
// fire content assist session about to start
Method privateFireSessionBeginEventMethod =
ContentAssistant.class.getDeclaredMethod(
"fireSessionBeginEvent", new Class[] {boolean.class});
privateFireSessionBeginEventMethod.setAccessible(true);
privateFireSessionBeginEventMethod.invoke(contentAssistant, new Object[] {Boolean.TRUE});
// get content assist suggestions
ICompletionProposal[][] pages = new ICompletionProposal[pageCount][];
for (int p = 0; p < pageCount; ++p) {
pages[p] = processor.computeCompletionProposals(viewer, offset);
}
// fire content assist session ending
Method privateFireSessionEndEventMethod =
ContentAssistant.class.getDeclaredMethod("fireSessionEndEvent", null);
privateFireSessionEndEventMethod.setAccessible(true);
privateFireSessionEndEventMethod.invoke(contentAssistant, null);
return pages;
}
public ICompletionProposal[] computeCompletionProposals(
final ITextViewer viewer, final int offset) {
final List proposals = new ArrayList();
final ICompletionProposal[] hippieProposals = hippie.computeCompletionProposals(viewer, offset);
for (int i = 0; i < hippieProposals.length; i++) proposals.add(hippieProposals[i]);
return (ICompletionProposal[]) proposals.toArray(new ICompletionProposal[0]);
}
public String getErrorMessage() {
return hippie.getErrorMessage();
}
public IContextInformationValidator getContextInformationValidator() {
return hippie.getContextInformationValidator();
}
public char[] getContextInformationAutoActivationCharacters() {
return hippie.getContextInformationAutoActivationCharacters();
}
public char[] getCompletionProposalAutoActivationCharacters() {
return hippie.getCompletionProposalAutoActivationCharacters();
}
public IContextInformation[] computeContextInformation(
final ITextViewer viewer, final int offset) {
return hippie.computeContextInformation(viewer, offset);
}