/**
* Remembers the selection in the content assist history.
*
* @throws JavaModelException if anything goes wrong
* @since 3.2
*/
protected final void rememberSelection() throws JavaModelException {
IType lhs = fInvocationContext.getExpectedType();
IType rhs = (IType) getJavaElement();
if (lhs != null && rhs != null)
JavaPlugin.getDefault().getContentAssistHistory().remember(lhs, rhs);
QualifiedTypeNameHistory.remember(getQualifiedTypeName());
}
public int compare(Object o1, Object o2) {
if (((String) o1).equals(o2)) return 0;
History history = QualifiedTypeNameHistory.getDefault();
int pos1 = history.getPosition(o1);
int pos2 = history.getPosition(o2);
if (pos1 == pos2) return Collator.getInstance().compare(o1, o2);
if (pos1 > pos2) {
return -1;
} else {
return 1;
}
}
private TypeNameMatch[] doChooseImports(
TypeNameMatch[][] openChoices, final ISourceRange[] ranges) {
// remember selection
ISelection sel = fEditor != null ? fEditor.getSelectionProvider().getSelection() : null;
TypeNameMatch[] result = null;
ILabelProvider labelProvider =
new TypeNameMatchLabelProvider(TypeNameMatchLabelProvider.SHOW_FULLYQUALIFIED);
MultiElementListSelectionDialog dialog =
new MultiElementListSelectionDialog(getShell(), labelProvider) {
protected void handleSelectionChanged() {
super.handleSelectionChanged();
// show choices in editor
doListSelectionChanged(getCurrentPage(), ranges);
}
};
fIsQueryShowing = true;
dialog.setTitle(ActionMessages.OrganizeImportsAction_selectiondialog_title);
dialog.setMessage(ActionMessages.OrganizeImportsAction_selectiondialog_message);
dialog.setElements(openChoices);
dialog.setComparator(ORGANIZE_IMPORT_COMPARATOR);
if (dialog.open() == Window.OK) {
Object[] res = dialog.getResult();
result = new TypeNameMatch[res.length];
for (int i = 0; i < res.length; i++) {
Object[] array = (Object[]) res[i];
if (array.length > 0) {
result[i] = (TypeNameMatch) array[0];
QualifiedTypeNameHistory.remember(result[i].getFullyQualifiedName());
}
}
}
// restore selection
if (sel instanceof ITextSelection) {
ITextSelection textSelection = (ITextSelection) sel;
fEditor.selectAndReveal(textSelection.getOffset(), textSelection.getLength());
}
fIsQueryShowing = false;
return result;
}
/*
* @see org.eclipse.jdt.internal.ui.text.java.LazyJavaCompletionProposal#computeRelevance()
*/
@Override
protected int computeRelevance() {
/*
* There are two histories: the RHS history remembers types used for the current expected
* type (left hand side), while the type history remembers recently used types in general).
*
* The presence of an RHS ranking is a much more precise sign for relevance as it proves the
* subtype relationship between the proposed type and the expected type.
*
* The "recently used" factor (of either the RHS or general history) is less important, it should
* not override other relevance factors such as if the type is already imported etc.
*/
float rhsHistoryRank = fInvocationContext.getHistoryRelevance(getQualifiedTypeName());
float typeHistoryRank =
QualifiedTypeNameHistory.getDefault().getNormalizedPosition(getQualifiedTypeName());
int recencyBoost = Math.round((rhsHistoryRank + typeHistoryRank) * 5);
int rhsBoost = rhsHistoryRank > 0.0f ? 50 : 0;
int baseRelevance = super.computeRelevance();
return baseRelevance + rhsBoost + recencyBoost;
}
