private AutoCompletionDecision shouldAutoComplete(
final CompletionProgressIndicator indicator, final LookupElement[] items) {
if (!invokedExplicitly) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
final CompletionParameters parameters = indicator.getParameters();
final LookupElement item = items[0];
if (items.length == 1) {
final AutoCompletionPolicy policy = getAutocompletionPolicy(item);
if (policy == AutoCompletionPolicy.NEVER_AUTOCOMPLETE)
return AutoCompletionDecision.SHOW_LOOKUP;
if (policy == AutoCompletionPolicy.ALWAYS_AUTOCOMPLETE)
return AutoCompletionDecision.insertItem(item);
if (!indicator.getLookup().itemMatcher(item).isStartMatch(item))
return AutoCompletionDecision.SHOW_LOOKUP;
}
if (!isAutocompleteOnInvocation(parameters.getCompletionType())) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
if (isInsideIdentifier(indicator.getOffsetMap())) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
if (items.length == 1
&& getAutocompletionPolicy(item) == AutoCompletionPolicy.GIVE_CHANCE_TO_OVERWRITE) {
return AutoCompletionDecision.insertItem(item);
}
AutoCompletionContext context =
new AutoCompletionContext(
parameters, items, indicator.getOffsetMap(), indicator.getLookup());
for (final CompletionContributor contributor :
CompletionContributor.forParameters(parameters)) {
final AutoCompletionDecision decision = contributor.handleAutoCompletionPossibility(context);
if (decision != null) {
return decision;
}
}
return AutoCompletionDecision.SHOW_LOOKUP;
}
private static CompletionAssertions.WatchingInsertionContext insertItem(
final CompletionProgressIndicator indicator,
final LookupElement item,
final char completionChar,
List<LookupElement> items,
final CompletionLookupArranger.StatisticsUpdate update,
final Editor editor,
final PsiFile psiFile,
final int caretOffset,
final int idEndOffset) {
editor.getCaretModel().moveToOffset(caretOffset);
final int initialStartOffset = caretOffset - item.getLookupString().length();
assert initialStartOffset >= 0
: "negative startOffset: " + caretOffset + "; " + item.getLookupString();
indicator
.getOffsetMap()
.addOffset(CompletionInitializationContext.START_OFFSET, initialStartOffset);
indicator
.getOffsetMap()
.addOffset(CompletionInitializationContext.SELECTION_END_OFFSET, caretOffset);
indicator
.getOffsetMap()
.addOffset(CompletionInitializationContext.IDENTIFIER_END_OFFSET, idEndOffset);
final CompletionAssertions.WatchingInsertionContext context =
new CompletionAssertions.WatchingInsertionContext(
indicator.getOffsetMap(), psiFile, completionChar, items, editor);
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
if (caretOffset != idEndOffset && completionChar == Lookup.REPLACE_SELECT_CHAR) {
editor.getDocument().deleteString(caretOffset, idEndOffset);
}
assert context.getStartOffset() >= 0
: "stale startOffset: was "
+ initialStartOffset
+ "; selEnd="
+ caretOffset
+ "; idEnd="
+ idEndOffset
+ "; file="
+ context.getFile();
assert context.getTailOffset() >= 0
: "stale tail: was "
+ initialStartOffset
+ "; selEnd="
+ caretOffset
+ "; idEnd="
+ idEndOffset
+ "; file="
+ context.getFile();
item.handleInsert(context);
Project project = indicator.getProject();
PostprocessReformattingAspect.getInstance(project).doPostponedFormatting();
if (context.shouldAddCompletionChar()) {
addCompletionChar(project, context, item, editor, indicator, completionChar);
}
if (!editor
.getCaretModel()
.supportsMultipleCarets()) { // done later, outside of this method
context.stopWatching();
}
editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
}
});
update.addSparedChars(indicator, item, context, completionChar);
return context;
}
