1 |
|
2 |
|
3 |
|
4 | 'use strict';
|
5 |
|
6 | const Base = require('./Base');
|
7 |
|
8 | module.exports = class Behavior extends Base {
|
9 |
|
10 | _handlers = {};
|
11 |
|
12 | attach (owner) {
|
13 | this.owner = owner;
|
14 | this.module = owner.module;
|
15 | for (const name of Object.keys(this._handlers)) {
|
16 | this.owner.on(name, this._handlers[name]);
|
17 | }
|
18 | }
|
19 |
|
20 | detach () {
|
21 | if (this.owner) {
|
22 | for (const name of Object.keys(this._handlers)) {
|
23 | this.owner.off(name, this._handlers[name]);
|
24 | }
|
25 | this.owner = null;
|
26 | }
|
27 | }
|
28 |
|
29 | hasHandler (eventName) {
|
30 | return Object.prototype.hasOwnProperty.call(this._handlers, eventName);
|
31 | }
|
32 |
|
33 | setHandler (eventName, method) {
|
34 | this._handlers[eventName] = method.bind(this);
|
35 | }
|
36 |
|
37 | attachHandler (eventName) {
|
38 | if (this.owner && this.hasHandler(eventName)) {
|
39 | this.owner.on(eventName, this._handlers[eventName]);
|
40 | }
|
41 | }
|
42 |
|
43 | detachHandler (eventName) {
|
44 | if (this.owner && this.hasHandler(eventName)) {
|
45 | this.owner.off(eventName, this._handlers[eventName]);
|
46 | }
|
47 | }
|
48 |
|
49 | log () {
|
50 | CommonHelper.log(this.owner, this.constructor.name, ...arguments);
|
51 | }
|
52 | };
|
53 |
|
54 | const CommonHelper = require('../helper/CommonHelper'); |
\ | No newline at end of file |