private void updateComponent() {
if (!myHint.isVisible()) {
Disposer.dispose(this);
return;
}
final PsiFile file =
PsiDocumentManager.getInstance(myProject).getPsiFile(myEditor.getDocument());
CharSequence chars = myEditor.getDocument().getCharsSequence();
boolean noDelimiter =
myHandler instanceof ParameterInfoHandlerWithTabActionSupport
&& ((ParameterInfoHandlerWithTabActionSupport) myHandler)
.getActualParameterDelimiterType()
== TokenType.WHITE_SPACE;
int caretOffset = myEditor.getCaretModel().getOffset();
final int offset =
noDelimiter ? caretOffset : CharArrayUtil.shiftBackward(chars, caretOffset - 1, " \t") + 1;
final UpdateParameterInfoContext context = new MyUpdateParameterInfoContext(offset, file);
final Object elementForUpdating = myHandler.findElementForUpdatingParameterInfo(context);
if (elementForUpdating != null) {
myHandler.updateParameterInfo(elementForUpdating, context);
if (!myDisposed
&& myHint.isVisible()
&& !myEditor.isDisposed()
&& myEditor.getComponent().getRootPane() != null) {
myComponent.update();
IdeTooltip tooltip = myHint.getCurrentIdeTooltip();
short position =
tooltip != null ? toShort(tooltip.getPreferredPosition()) : HintManager.UNDER;
Pair<Point, Short> pos =
myProvider.getBestPointPosition(
myHint,
elementForUpdating instanceof PsiElement ? (PsiElement) elementForUpdating : null,
caretOffset,
true,
position);
HintManagerImpl.adjustEditorHintPosition(myHint, myEditor, pos.getFirst(), pos.getSecond());
}
} else {
context.removeHint();
}
}