public static List<ParameterInfoImpl> performChange(
final Project project,
final Editor editor,
final PsiFile file,
final PsiMethod method,
final int minUsagesNumber,
final ParameterInfoImpl[] newParametersInfo,
final boolean changeAllUsages,
final boolean allowDelegation) {
if (!FileModificationService.getInstance().prepareFileForWrite(method.getContainingFile()))
return null;
final FindUsagesManager findUsagesManager =
((FindManagerImpl) FindManager.getInstance(project)).getFindUsagesManager();
final FindUsagesHandler handler = findUsagesManager.getFindUsagesHandler(method, false);
if (handler == null) return null; // on failure or cancel (e.g. cancel of super methods dialog)
final JavaMethodFindUsagesOptions options = new JavaMethodFindUsagesOptions(project);
options.isImplementingMethods = true;
options.isOverridingMethods = true;
options.isUsages = true;
options.isSearchForTextOccurrences = false;
final int[] usagesFound = new int[1];
Runnable runnable =
() -> {
Processor<UsageInfo> processor = t -> ++usagesFound[0] < minUsagesNumber;
handler.processElementUsages(method, processor, options);
};
String progressTitle = QuickFixBundle.message("searching.for.usages.progress.title");
if (!ProgressManager.getInstance()
.runProcessWithProgressSynchronously(runnable, progressTitle, true, project)) return null;
if (ApplicationManager.getApplication().isUnitTestMode() || usagesFound[0] < minUsagesNumber) {
ChangeSignatureProcessor processor =
new ChangeSignatureProcessor(
project,
method,
false,
null,
method.getName(),
method.getReturnType(),
newParametersInfo) {
@Override
@NotNull
protected UsageInfo[] findUsages() {
return changeAllUsages ? super.findUsages() : UsageInfo.EMPTY_ARRAY;
}
@Override
protected void performRefactoring(@NotNull UsageInfo[] usages) {
CommandProcessor.getInstance().setCurrentCommandName(getCommandName());
super.performRefactoring(usages);
}
};
processor.run();
ApplicationManager.getApplication().runWriteAction(() -> UndoUtil.markPsiFileForUndo(file));
return Arrays.asList(newParametersInfo);
} else {
final List<ParameterInfoImpl> parameterInfos =
newParametersInfo != null
? new ArrayList<ParameterInfoImpl>(Arrays.asList(newParametersInfo))
: new ArrayList<ParameterInfoImpl>();
final PsiReferenceExpression refExpr =
JavaTargetElementEvaluator.findReferenceExpression(editor);
JavaChangeSignatureDialog dialog =
JavaChangeSignatureDialog.createAndPreselectNew(
project, method, parameterInfos, allowDelegation, refExpr);
dialog.setParameterInfos(parameterInfos);
dialog.show();
return dialog.isOK() ? dialog.getParameters() : null;
}
}
