private ShadowMenu addChild(final ModuleInfo info, final int depth) {
final MenuPath menuPath = info.getMenuPath();
final MenuEntry entry = menuPath.get(depth);
final boolean leaf = isLeaf(depth, menuPath);
// retrieve existing child
final ShadowMenu existingChild = children.get(entry.getName());
final ShadowMenu child;
if (existingChild == null) {
// create new child and add to table
final String menuName = entry.getName();
final ShadowMenu newChild = new ShadowMenu(getContext(), info, depth, this);
children.put(menuName, newChild);
child = newChild;
} else {
// fill in any missing menu properties of existing child
final MenuEntry childMenuEntry = existingChild.getMenuEntry();
childMenuEntry.assignProperties(entry);
child = existingChild;
}
// recursively add remaining child menus
if (!leaf) child.addChild(info, depth + 1);
else if (existingChild != null) {
if (log != null) {
final ModuleInfo childInfo = existingChild.getModuleInfo();
if (childInfo != null && info.getPriority() == childInfo.getPriority()) {
log.warn(
"ShadowMenu: menu item already exists:\n"
+ //
"\texisting: "
+ details(childInfo)
+ "\n"
+ //
"\t ignored: "
+ details(info));
} else {
log.debug(
"ShadowMenu: higher-priority menu item already exists:\n"
+ "\texisting: "
+ details(childInfo)
+ "\n"
+ //
"\t ignored: "
+ details(info));
}
}
}
return child;
}
private ShadowMenu getMenu(final MenuPath menuPath, final int index) {
final MenuEntry entry = menuPath.get(index);
// search for a child with matching menu entry
for (final ShadowMenu child : children.values()) {
if (entry.getName().equals(child.getMenuEntry().getName())) {
// found matching child
if (isLeaf(index, menuPath)) {
// return child directly
return child;
}
// recurse downward
return child.getMenu(menuPath, index + 1);
}
}
return null;
}
private ShadowMenu(
final Context context,
final ModuleInfo moduleInfo,
final int menuDepth,
final ShadowMenu parent) {
setContext(context);
if (moduleInfo == null) {
this.moduleInfo = null;
menuEntry = null;
} else {
final MenuPath menuPath = moduleInfo.getMenuPath();
// preserve moduleInfo reference only for leaf items
final boolean leaf = menuDepth == menuPath.size() - 1;
this.moduleInfo = leaf ? moduleInfo : null;
menuEntry = menuPath.get(menuDepth);
}
this.menuDepth = menuDepth;
this.parent = parent;
children = new HashMap<>();
}