/** Find all children for all known menu components. Populates {@link #uriToMenuElement}. */
protected void findChildren() {
for (MenuComponent menuElement : menuComponents) {
uriToMenuElement.put(menuElement.getId(), menuElement);
logger.debug("Found menu element " + menuElement.getId() + " " + menuElement);
if (menuElement.getParentId() == null) continue;
List<MenuComponent> siblings = menuElementTree.get(menuElement.getParentId());
if (siblings == null) {
siblings = new ArrayList<>();
synchronized (menuElementTree) {
menuElementTree.put(menuElement.getParentId(), siblings);
}
}
siblings.add(menuElement);
}
// if (uriToMenuElement.isEmpty()) {
// logger.error("No menu elements found, check classpath/Raven/SPI");
// }
}
/**
* Add a {@link JMenu} to the list of components as described by the menu component. If there are
* no children, the menu is not added.
*
* @param components List of components where to add the created {@link JMenu}
* @param menuComponent The {@link MenuComponent} definition for this menu
* @param isToolbar True if the list of components is to be added to a toolbar
*/
private void addMenu(
List<Component> components, MenuComponent menuComponent, MenuOptions menuOptions) {
URI menuId = menuComponent.getId();
if (menuOptions.isToolbar()) {
logger.warn("Can't have menu " + menuComponent + " within toolBar element");
return;
}
MenuOptions childOptions = new MenuOptions(menuOptions);
List<Component> subComponents = makeComponents(menuId, childOptions);
if (subComponents.isEmpty()) {
logger.warn("No sub components found for menu " + menuId);
return;
}
JMenu menu = new JMenu(menuComponent.getAction());
for (Component menuItem : subComponents)
if (menuItem == null) menu.addSeparator();
else menu.add(menuItem);
registerComponent(menuId, menu);
components.add(menu);
}
/**
* Make the list of Swing {@link Component}s that are the children of the given {@link URI}.
*
* @param id The {@link URI} of the parent which children are to be made
* @param menuOptions Options of the created menu, for instance {@link MenuOptions#isToolbar()}.
* @return A {@link List} of {@link Component}s that can be added to a {@link JMenuBar}, {@link
* JMenu} or {@link JToolBar}.
*/
protected List<Component> makeComponents(URI id, MenuOptions menuOptions) {
List<Component> components = new ArrayList<>();
for (MenuComponent childElement : getChildren(id)) {
if (childElement instanceof ContextualMenuComponent)
((ContextualMenuComponent) childElement)
.setContextualSelection(menuOptions.getContextualSelection());
/*
* Important - check this AFTER setContextualSelection so the item
* can change it's enabled-state if needed.
*/
if (!childElement.isEnabled()) continue;
MenuType type = childElement.getType();
Action action = childElement.getAction();
URI childId = childElement.getId();
if (type.equals(MenuType.action)) {
if (action == null) {
logger.warn("Skipping invalid action " + childId + " for " + id);
continue;
}
Component actionComponent;
if (menuOptions.isOptionGroup()) {
if (menuOptions.isToolbar()) {
actionComponent = new JToggleButton(action);
toolbarizeButton((AbstractButton) actionComponent);
} else actionComponent = new JRadioButtonMenuItem(action);
} else {
if (menuOptions.isToolbar()) {
actionComponent = new JButton(action);
toolbarizeButton((AbstractButton) actionComponent);
} else actionComponent = new JMenuItem(action);
}
registerComponent(childId, actionComponent);
components.add(actionComponent);
} else if (type.equals(MenuType.toggle)) {
if (action == null) {
logger.warn("Skipping invalid toggle " + childId + " for " + id);
continue;
}
Component toggleComponent;
if (menuOptions.isToolbar()) toggleComponent = new JToggleButton(action);
else toggleComponent = new JCheckBoxMenuItem(action);
registerComponent(childId, toggleComponent);
components.add(toggleComponent);
} else if (type.equals(MenuType.custom)) {
Component customComponent = childElement.getCustomComponent();
if (customComponent == null) {
logger.warn("Skipping null custom component " + childId + " for " + id);
continue;
}
registerComponent(childId, customComponent);
components.add(customComponent);
} else if (type.equals(MenuType.optionGroup))
addOptionGroup(components, childId, menuOptions);
else if (type.equals(MenuType.section)) addSection(components, childId, menuOptions);
else if (type.equals(MenuType.menu)) addMenu(components, childElement, menuOptions);
else {
logger.warn("Skipping invalid/unknown type " + type + " for " + id);
continue;
}
}
stripTrailingNullSeparator(components);
return components;
}