private static void renderFocus(Display display) {
if (!display.isDisposed()) {
IDisplayAdapter displayAdapter = getDisplayAdapter(display);
RemoteAdapter widgetAdapter = getAdapter(display);
Object oldValue = widgetAdapter.getPreserved(PROP_FOCUS_CONTROL);
if (!widgetAdapter.isInitialized()
|| oldValue != display.getFocusControl()
|| displayAdapter.isFocusInvalidated()) {
// TODO [rst] Added null check as a NPE occurred in some rare cases
Control focusControl = display.getFocusControl();
if (focusControl != null) {
getRemoteObject(display).set(PROP_FOCUS_CONTROL, getId(display.getFocusControl()));
}
}
}
}
@Override
public boolean canPaste(Clipboard clipboard) {
Display d = getSection().getDisplay();
Control c = d.getFocusControl();
if (c instanceof Text) return true;
return false;
}
/** {@inheritDoc} */
public void run() {
Display display = Display.getCurrent();
if (display == null) return;
Control focus = display.getFocusControl();
if (focus == null || focus.isDisposed()) return;
MenuManager menu = new MenuManager();
fillMenu(menu);
final Menu widget = menu.createContextMenu(focus.getShell());
Point location = computeMenuLocation(focus, widget);
if (location == null) return;
widget.setLocation(location);
widget.setVisible(true);
while (!widget.isDisposed() && widget.isVisible()) {
if (!display.readAndDispatch()) display.sleep();
}
if (!widget.isDisposed()) {
widget.dispose();
}
}
@Override
public void preserveValues(Display display) {
RemoteAdapter adapter = getAdapter(display);
adapter.preserve(PROP_FOCUS_CONTROL, display.getFocusControl());
adapter.preserve(PROP_EXIT_CONFIRMATION, getExitConfirmation());
adapter.preserve(PROP_RESIZE_LISTENER, Boolean.valueOf(hasResizeListener(display)));
ActiveKeysUtil.preserveActiveKeys(display);
ActiveKeysUtil.preserveCancelKeys(display);
ActiveKeysUtil.preserveMnemonicActivator(display);
if (adapter.isInitialized()) {
for (Shell shell : getShells(display)) {
WidgetTreeVisitor.accept(
shell,
new AllWidgetTreeVisitor() {
@Override
public boolean doVisit(Widget widget) {
getLCA(widget).preserveValues(widget);
return true;
}
});
}
}
}
@Override
public boolean canPaste(Clipboard clipboard) {
Display d = getSection().getDisplay();
return d.getFocusControl() instanceof Text;
}