@dcloudio/uni-debugger/src/link/managers/device_manager.js

uni-app debugger

const Emitter = require('events').EventEmitter

class DeviceManager extends Emitter {
  constructor () {
    super()
    this.deviceMap = {}
  }

  registerDevice (device, channelId) {
    const existed = this.deviceMap[channelId]
    if (existed) {
      for (let i = existed.length - 1; i >= 0; i--) {
        if (existed[i].deviceId === device.deviceId) {
          clearTimeout(existed.timer)
          // this.deviceMap[channelId].splice(i,1,device)
          return device
        }
      }
      this.deviceMap[channelId].unshift(device)
      return device
    }
    else {
      device.channelId = channelId
      this.deviceMap[channelId] = [device]
      return device
    }
  }

  removeDevice (channelId, callback) {
    const device = this.deviceMap[channelId]
    if (device && device.length > 0) {
      clearTimeout(device.timer)
      device.timer = setTimeout(() => {
        this.deviceMap[channelId].pop()
        if (
          this.deviceMap[channelId] &&
          this.deviceMap[channelId].length === 0
        ) {
          callback()
        }
      }, 5000)
    }
    return device
  }

  getDevice (channelId) {
    const device = this.deviceMap[channelId]
    return device && device[device.length - 1]
  }

  getDeviceList () {
    return Object.keys(this.deviceMap).map(key => this.deviceMap[key])
  }
}

module.exports = new DeviceManager()