public Object[] getSelectedElements() {
ParameterInfoContext context =
new ParameterInfoContext() {
@Override
public Project getProject() {
return myProject;
}
@Override
public PsiFile getFile() {
return myComponent.getParameterOwner().getContainingFile();
}
@Override
public int getOffset() {
return myEditor.getCaretModel().getOffset();
}
@Override
@NotNull
public Editor getEditor() {
return myEditor;
}
};
if (!myHandler.tracksParameterIndex()) {
return myHandler.getParametersForDocumentation(myComponent.getObjects()[0], context);
}
final Object[] objects = myComponent.getObjects();
int selectedParameterIndex = myComponent.getCurrentParameterIndex();
List<Object> params = new ArrayList<>(objects.length);
final Object highlighted = myComponent.getHighlighted();
for (Object o : objects) {
if (highlighted != null && !o.equals(highlighted)) continue;
collectParams(context, selectedParameterIndex, params, o);
}
// choose anything when highlighted is not applicable
if (highlighted != null && params.isEmpty()) {
for (Object o : objects) {
collectParams(context, selectedParameterIndex, params, o);
}
}
return ArrayUtil.toObjectArray(params);
}
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();
}
}
private void moveToParameterAtOffset(int offset) {
PsiFile file = PsiDocumentManager.getInstance(myProject).getPsiFile(myEditor.getDocument());
PsiElement argsList = findArgumentList(file, offset, -1);
if (argsList == null) return;
myEditor.getCaretModel().moveToOffset(offset);
myEditor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
myEditor.getSelectionModel().removeSelection();
myHandler.updateParameterInfo(argsList, new MyUpdateParameterInfoContext(offset, file));
}
private void collectParams(
ParameterInfoContext context, int selectedParameterIndex, List<Object> params, Object o) {
final Object[] availableParams = myHandler.getParametersForDocumentation(o, context);
if (availableParams != null
&& selectedParameterIndex < availableParams.length
&& selectedParameterIndex >= 0) {
params.add(availableParams[selectedParameterIndex]);
}
}