/**
* {@link #pack() Packs} the dialog and adds it to the stage with custom action which can be null
* for instant show
*/
public Dialog show(Stage stage, Action action) {
clearActions();
removeCaptureListener(ignoreTouchDown);
previousKeyboardFocus = null;
Actor actor = stage.getKeyboardFocus();
if (actor != null && !actor.isDescendantOf(this)) previousKeyboardFocus = actor;
previousScrollFocus = null;
actor = stage.getScrollFocus();
if (actor != null && !actor.isDescendantOf(this)) previousScrollFocus = actor;
pack();
stage.addActor(this);
stage.setKeyboardFocus(this);
stage.setScrollFocus(this);
if (action != null) addAction(action);
return this;
}
/**
* @return Returns a direct child of parent in the hierarchy of the given actor. Null if actor is
* not a descendant of parent
*/
public static Actor getDirectChild(Group parent, Actor actor) {
if (actor == null || !actor.isDescendantOf(parent)) {
return null;
}
Actor firstChild = actor;
while (firstChild != null && firstChild.getParent() != parent) {
firstChild = firstChild.getParent();
}
return firstChild;
}
/** Hides the dialog with the given action and then removes it from the stage. */
public void hide(Action action) {
Stage stage = getStage();
if (stage != null) {
removeListener(focusListener);
if (previousKeyboardFocus != null && previousKeyboardFocus.getStage() == null)
previousKeyboardFocus = null;
Actor actor = stage.getKeyboardFocus();
if (actor == null || actor.isDescendantOf(this))
stage.setKeyboardFocus(previousKeyboardFocus);
if (previousScrollFocus != null && previousScrollFocus.getStage() == null)
previousScrollFocus = null;
actor = stage.getScrollFocus();
if (actor == null || actor.isDescendantOf(this)) stage.setScrollFocus(previousScrollFocus);
}
if (action != null) {
addCaptureListener(ignoreTouchDown);
addAction(
sequence(action, Actions.removeListener(ignoreTouchDown, true), Actions.removeActor()));
} else remove();
}
/** Removes the touch, keyboard, and scroll focus for the specified actor and any descendants. */
public void unfocus(Actor actor) {
cancelTouchFocus(actor);
if (scrollFocus != null && scrollFocus.isDescendantOf(actor)) scrollFocus = null;
if (keyboardFocus != null && keyboardFocus.isDescendantOf(actor)) keyboardFocus = null;
}