Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | 1x 1x | class Listener { constructor(fn, once = false) { this.fn = fn; this.once = once; } } class KuzzleEventEmitter { constructor() { this._events = {}; } _exists (listeners, fn) { return Boolean(listeners.find(listener => listener.fn === fn)); } listeners (eventName) { if (this._events[eventName] === undefined) { return []; } return this._events[eventName].map(listener => listener.fn); } addListener (eventName, listener, once = false) { if (!eventName || !listener) { return this; } const listenerType = typeof listener; if (listenerType !== 'function') { throw new Error(`Invalid listener type: expected a function, got a ${listenerType}`); } if (this._events[eventName] === undefined) { this._events[eventName] = []; } if (!this._exists(this._events[eventName], listener)) { this._events[eventName].push(new Listener(listener, once)); } return this; } on (eventName, listener) { return this.addListener(eventName, listener); } prependListener (eventName, listener, once = false) { if (!eventName || !listener) { return this; } if (this._events[eventName] === undefined) { this._events[eventName] = []; } if (!this._exists(this._events[eventName], listener)) { this._events[eventName] = [new Listener(listener, once)].concat(this._events[eventName]); } return this; } addOnceListener (eventName, listener) { return this.addListener(eventName, listener, true); } once (eventName, listener) { return this.addOnceListener(eventName, listener); } prependOnceListener (eventName, listener) { return this.prependListener(eventName, listener, true); } removeListener (eventName, listener) { const listeners = this._events[eventName]; if (!listeners || !listeners.length) { return this; } const index = listeners.findIndex(l => l.fn === listener); if (index !== -1) { listeners.splice(index, 1); } if (listeners.length === 0) { delete this._events[eventName]; } return this; } removeAllListeners (eventName) { if (eventName) { delete this._events[eventName]; } else { this._events = {}; } return this; } emit (eventName, ...payload) { const listeners = this._events[eventName]; if (listeners === undefined) { return false; } const onceListeners = []; for (const listener of listeners) { listener.fn(...payload); if (listener.once) { onceListeners.push(listener.fn); } } for (const toDelete of onceListeners) { this.removeListener(eventName, toDelete); } return true; } eventNames () { return Object.keys(this._events); } listenerCount (eventName) { return this._events[eventName] && this._events[eventName].length || 0; } } module.exports = KuzzleEventEmitter; |