@eddie666/ng-material-multilevel-menu
Version:
Angular 16 compatible (ivy)
93 lines • 12.3 kB
JavaScript
import { Injectable } from '@angular/core';
import { Subject } from 'rxjs';
import { ExpandCollapseStatusEnum } from './app.model';
import { CONSTANT } from './constants';
import * as i0 from "@angular/core";
class MultilevelMenuService {
foundLinkObject;
expandCollapseStatus = new Subject();
expandCollapseStatus$ = this.expandCollapseStatus.asObservable();
selectedMenuID = new Subject();
selectedMenuID$ = this.selectedMenuID.asObservable();
generateId() {
let text = '';
for (let i = 0; i < 20; i++) {
text += CONSTANT.POSSIBLE.charAt(Math.floor(Math.random() * CONSTANT.POSSIBLE.length));
}
return text;
}
addRandomId(nodes) {
nodes.forEach((node) => {
node.id = this.generateId();
if (node.items !== undefined) {
this.addRandomId(node.items);
}
});
}
recursiveCheckId(node, nodeId) {
if (node.id === nodeId) {
return true;
}
else {
if (node.items !== undefined) {
return node.items.some((nestedNode) => {
return this.recursiveCheckId(nestedNode, nodeId);
});
}
}
}
findNodeRecursively({ nodes, link, id }) {
for (let nodeIndex = 0; nodeIndex < nodes.length; nodeIndex++) {
const node = nodes[nodeIndex];
for (const key in node) {
if (node.hasOwnProperty(key)) {
if (encodeURI(node.link) === link) {
this.foundLinkObject = node;
}
else if (node.id === id) {
this.foundLinkObject = node;
}
else {
if (node.items !== undefined) {
this.findNodeRecursively({
nodes: node.items,
link: link ? link : null,
id: id ? id : null,
});
}
}
}
}
}
}
getMatchedObjectByUrl(nodes, link) {
this.findNodeRecursively({ nodes, link });
return this.foundLinkObject;
}
getMatchedObjectById(nodes, id) {
this.findNodeRecursively({ nodes, id });
return this.foundLinkObject;
}
// overrides key-value pipe's default reordering (by key) by implementing dummy comprarer function
// https://angular.io/api/common/KeyValuePipe#description
kvDummyComparerFn() {
return 0;
}
setMenuExpandCollapseStatus(status) {
this.expandCollapseStatus.next(status ? status : ExpandCollapseStatusEnum.neutral);
}
selectMenuByID(menuID) {
this.selectedMenuID.next(menuID);
return this.foundLinkObject;
}
static ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "16.0.1", ngImport: i0, type: MultilevelMenuService, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
static ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "16.0.1", ngImport: i0, type: MultilevelMenuService, providedIn: 'root' });
}
export { MultilevelMenuService };
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "16.0.1", ngImport: i0, type: MultilevelMenuService, decorators: [{
type: Injectable,
args: [{
providedIn: 'root',
}]
}] });
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i < 20; i++) {\r\n            text += CONSTANT.POSSIBLE.charAt(Math.floor(Math.random() * CONSTANT.POSSIBLE.length));\r\n        }\r\n        return text;\r\n    }\r\n    addRandomId(nodes: MultilevelNode[]): void {\r\n        nodes.forEach((node: MultilevelNode) => {\r\n            node.id = this.generateId();\r\n            if (node.items !== undefined) {\r\n                this.addRandomId(node.items);\r\n            }\r\n        });\r\n    }\r\n    recursiveCheckId(node: MultilevelNode, nodeId: string): boolean {\r\n        if (node.id === nodeId) {\r\n            return true;\r\n        } else {\r\n            if (node.items !== undefined) {\r\n                return node.items.some((nestedNode: MultilevelNode) => {\r\n                    return this.recursiveCheckId(nestedNode, nodeId);\r\n                });\r\n            }\r\n        }\r\n    }\r\n    private findNodeRecursively({ nodes, link, id }: { nodes: MultilevelNode[]; link?: string; id?: string }): void {\r\n        for (let nodeIndex = 0; nodeIndex < nodes.length; nodeIndex++) {\r\n            const node = nodes[nodeIndex];\r\n            for (const key in node) {\r\n                if (node.hasOwnProperty(key)) {\r\n                    if (encodeURI(node.link) === link) {\r\n                        this.foundLinkObject = node;\r\n                    } else if (node.id === id) {\r\n                        this.foundLinkObject = node;\r\n                    } else {\r\n                        if (node.items !== undefined) {\r\n                            this.findNodeRecursively({\r\n                                nodes: node.items,\r\n                                link: link ? link : null,\r\n                                id: id ? id : null,\r\n                            });\r\n                        }\r\n                    }\r\n                }\r\n            }\r\n        }\r\n    }\r\n    getMatchedObjectByUrl(nodes: MultilevelNode[], link: string): MultilevelNode {\r\n        this.findNodeRecursively({ nodes, link });\r\n        return this.foundLinkObject;\r\n    }\r\n    getMatchedObjectById(nodes: MultilevelNode[], id: string): MultilevelNode {\r\n        this.findNodeRecursively({ nodes, id });\r\n        return this.foundLinkObject;\r\n    }\r\n    // overrides key-value pipe's default reordering (by key) by implementing dummy comprarer function\r\n    // https://angular.io/api/common/KeyValuePipe#description\r\n    kvDummyComparerFn() {\r\n        return 0;\r\n    }\r\n    setMenuExpandCollapseStatus(status: ExpandCollapseStatusEnum): void {\r\n        this.expandCollapseStatus.next(status ? status : ExpandCollapseStatusEnum.neutral);\r\n    }\r\n    selectMenuByID(menuID: string) {\r\n        this.selectedMenuID.next(menuID);\r\n        return this.foundLinkObject;\r\n    }\r\n}\r\n"]}