@Override
public void widgetSelected(final SelectionEvent event) {
final TexCommand command = (TexCommand) event.widget.getData();
final IEditorPart editor = UIAccess.getActiveWorkbenchPage(true).getActiveEditor();
if (editor instanceof ILtxEditor) {
final ILtxEditor texEditor = (ILtxEditor) editor;
if (!texEditor.isEditable(true)) {
return;
}
final SourceViewer viewer = ((ILtxEditor) editor).getViewer();
Point selection = viewer.getSelectedRange();
if (selection == null || selection.x < 0) {
return;
}
try {
final String contentType =
TextUtils.getContentType(
viewer.getDocument(),
texEditor.getDocumentContentInfo(),
selection.x,
selection.y == 0);
final LtxAssistInvocationContext context =
new LtxAssistInvocationContext(
texEditor, selection.x, contentType, true, new NullProgressMonitor());
final LtxCommandCompletionProposal proposal =
new LtxCommandCompletionProposal(context, context.getInvocationOffset(), command);
proposal.apply(viewer, (char) 0, 1, context.getInvocationOffset());
selection = proposal.getSelection(viewer.getDocument());
if (selection != null) {
viewer.setSelectedRange(selection.x, selection.y);
viewer.revealRange(selection.x, selection.y);
} else {
viewer.revealRange(context.getInvocationOffset(), 0);
}
} catch (final Exception e) {
StatusManager.getManager()
.handle(
new Status(
IStatus.ERROR,
TexUI.PLUGIN_ID,
0,
"An error occurred when inserting LaTeX symbol.",
e));
}
}
}
@Override
public SourceSelection getSelection() {
final Point selection = viewer.getSelectedRange();
return new SourceSelection(getBlock(), selection.x, selection.y);
}