@polygonjs/polygonjs
Version:
node-based WebGL 3D engine https://polygonjs.com
99 lines (98 loc) • 2.62 kB
JavaScript
"use strict";
import { CoreWalker } from "../../../../core/Walker";
export class HierarchyParentController {
constructor(node) {
this.node = node;
this._parent = null;
}
parent() {
return this._parent;
}
setParent(parent) {
if (parent != this.node.parentController.parent()) {
this._parent = parent;
if (this._parent) {
this.node.nameController.requestNameToParent(this.node.name());
}
}
}
firstAncestorWithContext(context) {
if (this._parent) {
if (this._parent.context() == context) {
return this._parent;
} else {
return this._parent.parentController.firstAncestorWithContext(context);
}
}
return null;
}
findParent(callback) {
if (this._parent) {
if (callback(this._parent) == true) {
return this._parent;
} else {
return this._parent.parentController.findParent(callback);
}
}
return null;
}
path(relativeToParent) {
const separator = CoreWalker.SEPARATOR;
if (this._parent != null) {
if (this._parent == relativeToParent) {
return this.node.name();
} else {
const parent_fullPath = this._parent.path(relativeToParent);
if (parent_fullPath === separator) {
return parent_fullPath + this.node.name();
} else {
return parent_fullPath + separator + this.node.name();
}
}
} else {
return separator;
}
}
onSetParent() {
if (this._on_set_parent_hooks) {
for (const hook of this._on_set_parent_hooks) {
hook();
}
}
}
findNode(path) {
if (path == null) {
return null;
}
if (path == CoreWalker.CURRENT || path == CoreWalker.CURRENT_WITH_SLASH) {
return this.node;
}
if (path == CoreWalker.PARENT || path == CoreWalker.PARENT_WITH_SLASH) {
return this.node.parent();
}
const separator = CoreWalker.SEPARATOR;
if (path === separator) {
return this.node.scene().root();
}
if (path[0] === separator) {
path = path.substring(1, path.length);
return this.node.scene().root().node(path);
}
if (path.split) {
const elements = path.split(separator);
if (elements.length === 1) {
const name = elements[0];
if (this.node.childrenController) {
return this.node.childrenController.childByName(name);
} else {
return null;
}
} else {
return CoreWalker.findNode(this.node, path);
}
} else {
console.error("unexpected path given:", path);
return null;
}
}
}