private CompletionInitializationContext runContributorsBeforeCompletion(
Editor editor, PsiFile psiFile, int invocationCount, Caret caret) {
final Ref<CompletionContributor> current = Ref.create(null);
CompletionInitializationContext context =
new CompletionInitializationContext(
editor, caret, psiFile, myCompletionType, invocationCount) {
CompletionContributor dummyIdentifierChanger;
@Override
public void setDummyIdentifier(@NotNull String dummyIdentifier) {
super.setDummyIdentifier(dummyIdentifier);
if (dummyIdentifierChanger != null) {
LOG.error(
"Changing the dummy identifier twice, already changed by "
+ dummyIdentifierChanger);
}
dummyIdentifierChanger = current.get();
}
};
List<CompletionContributor> contributors =
CompletionContributor.forLanguage(context.getPositionLanguage());
Project project = psiFile.getProject();
List<CompletionContributor> filteredContributors =
DumbService.getInstance(project).filterByDumbAwareness(contributors);
for (final CompletionContributor contributor : filteredContributors) {
current.set(contributor);
contributor.beforeCompletion(context);
CompletionAssertions.checkEditorValid(editor);
assert !PsiDocumentManager.getInstance(project).isUncommited(editor.getDocument())
: "Contributor " + contributor + " left the document uncommitted";
}
return context;
}
void duringCompletion(CompletionInitializationContext initContext) {
if (isAutopopupCompletion()) {
if (shouldFocusLookup(myParameters)) {
myLookup.setFocused(true);
} else if (FeatureUsageTracker.getInstance()
.isToBeAdvertisedInLookup(
CodeCompletionFeatures.EDITING_COMPLETION_CONTROL_ENTER, getProject())) {
myLookup.addAdvertisement(
"Press "
+ CompletionContributor.getActionShortcut(
IdeActions.ACTION_CHOOSE_LOOKUP_ITEM_ALWAYS)
+ " to choose the first suggestion");
}
if (!myEditor.isOneLineMode()
&& FeatureUsageTracker.getInstance()
.isToBeAdvertisedInLookup(
CodeCompletionFeatures.EDITING_COMPLETION_CONTROL_ARROWS, getProject())) {
myLookup.addAdvertisement(
CompletionContributor.getActionShortcut(IdeActions.ACTION_LOOKUP_DOWN)
+ " and "
+ CompletionContributor.getActionShortcut(IdeActions.ACTION_LOOKUP_UP)
+ " will move caret down and up in the editor");
}
}
ProgressManager.checkCanceled();
if (!initContext
.getOffsetMap()
.wasModified(CompletionInitializationContext.IDENTIFIER_END_OFFSET)) {
try {
final int selectionEndOffset = initContext.getSelectionEndOffset();
final PsiReference reference = initContext.getFile().findReferenceAt(selectionEndOffset);
if (reference != null) {
initContext.setReplacementOffset(findReplacementOffset(selectionEndOffset, reference));
}
} catch (IndexNotReadyException ignored) {
}
}
for (CompletionContributor contributor :
CompletionContributor.forLanguage(initContext.getPositionLanguage())) {
ProgressManager.checkCanceled();
if (DumbService.getInstance(initContext.getProject()).isDumb()
&& !DumbService.isDumbAware(contributor)) {
continue;
}
contributor.duringCompletion(initContext);
}
}
