private static void showParameterHint(
final PsiElement element,
final Editor editor,
final Object[] descriptors,
final Project project,
@Nullable PsiElement highlighted,
final int elementStart,
final ParameterInfoHandler handler,
final boolean requestFocus) {
if (ParameterInfoController.isAlreadyShown(editor, elementStart)) return;
if (editor.isDisposed() || !editor.getComponent().isVisible()) return;
final ParameterInfoComponent component =
new ParameterInfoComponent(descriptors, editor, handler, requestFocus);
component.setParameterOwner(element);
component.setRequestFocus(requestFocus);
if (highlighted != null) {
component.setHighlightedParameter(highlighted);
}
component.update(); // to have correct preferred size
final LightweightHint hint = new LightweightHint(component);
hint.setSelectingHint(true);
final HintManagerImpl hintManager = HintManagerImpl.getInstanceImpl();
final ShowParameterInfoHandler.BestLocationPointProvider provider =
new MyBestLocationPointProvider(editor);
final Pair<Point, Short> pos =
provider.getBestPointPosition(hint, element, elementStart, true, HintManager.UNDER);
PsiDocumentManager.getInstance(project)
.performLaterWhenAllCommitted(
() -> {
if (editor.isDisposed() || DumbService.isDumb(project)) return;
final Document document = editor.getDocument();
if (document.getTextLength() < elementStart) return;
HintHint hintHint =
HintManagerImpl.createHintHint(editor, pos.getFirst(), hint, pos.getSecond());
hintHint.setExplicitClose(true);
hintHint.setRequestFocus(requestFocus);
Editor editorToShow =
editor instanceof EditorWindow ? ((EditorWindow) editor).getDelegate() : editor;
// is case of injection we need to calculate position for EditorWindow
// also we need to show the hint in the main editor because of intention bulb
hintManager.showEditorHint(
hint,
editorToShow,
pos.getFirst(),
HintManager.HIDE_BY_ESCAPE | HintManager.UPDATE_BY_SCROLLING,
0,
false,
hintHint);
new ParameterInfoController(project, editor, elementStart, hint, handler, provider);
});
}
public static String formatHtml(@NonNls String text, HintHint hintHint) {
String htmlBody = UIUtil.getHtmlBody(text);
text =
"<html><head>"
+ UIUtil.getCssFontDeclaration(
hintHint.getTextFont(),
hintHint.getTextForeground(),
hintHint.getLinkForeground(),
hintHint.getUlImg())
+ "</head><body>"
+ htmlBody
+ "</body></html>";
return text;
}
public static JEditorPane initPane(
@NonNls Html html, final HintHint hintHint, @Nullable final JLayeredPane layeredPane) {
final Ref<Dimension> prefSize = new Ref<Dimension>(null);
String htmlBody = UIUtil.getHtmlBody(html);
@NonNls
String text =
"<html><head>"
+ UIUtil.getCssFontDeclaration(
hintHint.getTextFont(),
hintHint.getTextForeground(),
hintHint.getLinkForeground(),
hintHint.getUlImg())
+ "</head><body>"
+ htmlBody
+ "</body></html>";
final boolean[] prefSizeWasComputed = {false};
final JEditorPane pane =
new JEditorPane() {
@Override
public Dimension getPreferredSize() {
if (!prefSizeWasComputed[0] && hintHint.isAwtTooltip()) {
JLayeredPane lp = layeredPane;
if (lp == null) {
JRootPane rootPane = UIUtil.getRootPane(this);
if (rootPane != null) {
lp = rootPane.getLayeredPane();
}
}
Dimension size;
if (lp != null) {
size = lp.getSize();
prefSizeWasComputed[0] = true;
} else {
size = ScreenUtil.getScreenRectangle(0, 0).getSize();
}
int fitWidth = (int) (size.width * 0.8);
Dimension prefSizeOriginal = super.getPreferredSize();
if (prefSizeOriginal.width > fitWidth) {
setSize(new Dimension(fitWidth, Integer.MAX_VALUE));
Dimension fixedWidthSize = super.getPreferredSize();
Dimension minSize = super.getMinimumSize();
prefSize.set(
new Dimension(
fitWidth > minSize.width ? fitWidth : minSize.width,
fixedWidthSize.height));
} else {
prefSize.set(new Dimension(prefSizeOriginal));
}
}
Dimension s =
prefSize.get() != null ? new Dimension(prefSize.get()) : super.getPreferredSize();
Border b = getBorder();
if (b != null) {
Insets insets = b.getBorderInsets(this);
if (insets != null) {
s.width += insets.left + insets.right;
s.height += insets.top + insets.bottom;
}
}
return s;
}
};
final HTMLEditorKit.HTMLFactory factory =
new HTMLEditorKit.HTMLFactory() {
@Override
public View create(Element elem) {
AttributeSet attrs = elem.getAttributes();
Object elementName = attrs.getAttribute(AbstractDocument.ElementNameAttribute);
Object o =
elementName != null ? null : attrs.getAttribute(StyleConstants.NameAttribute);
if (o instanceof HTML.Tag) {
HTML.Tag kind = (HTML.Tag) o;
if (kind == HTML.Tag.HR) {
return new CustomHrView(elem, hintHint.getTextForeground());
}
}
return super.create(elem);
}
};
HTMLEditorKit kit =
new HTMLEditorKit() {
@Override
public ViewFactory getViewFactory() {
return factory;
}
};
pane.setEditorKit(kit);
pane.setText(text);
pane.setCaretPosition(0);
pane.setEditable(false);
if (hintHint.isOwnBorderAllowed()) {
setBorder(pane);
setColors(pane);
} else {
pane.setBorder(null);
}
if (!hintHint.isAwtTooltip()) {
prefSizeWasComputed[0] = true;
}
final boolean opaque = hintHint.isOpaqueAllowed();
pane.setOpaque(opaque);
if (UIUtil.isUnderNimbusLookAndFeel() && !opaque) {
pane.setBackground(UIUtil.TRANSPARENT_COLOR);
} else {
pane.setBackground(hintHint.getTextBackground());
}
return pane;
}