You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
3.1 KiB
119 lines
3.1 KiB
import extension from 'extensionizer'
|
|
|
|
const NOTIFICATION_HEIGHT = 620
|
|
const NOTIFICATION_WIDTH = 360
|
|
|
|
class NotificationManager {
|
|
|
|
/**
|
|
* A collection of methods for controlling the showing and hiding of the notification popup.
|
|
*
|
|
* @typedef {Object} NotificationManager
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* Either brings an existing MetaMask notification window into focus, or creates a new notification window. New
|
|
* notification windows are given a 'popup' type.
|
|
*
|
|
*/
|
|
showPopup () {
|
|
this._getPopup((err, popup) => {
|
|
if (err) {
|
|
throw err
|
|
}
|
|
|
|
// Bring focus to chrome popup
|
|
if (popup) {
|
|
// bring focus to existing chrome popup
|
|
extension.windows.update(popup.id, { focused: true })
|
|
} else {
|
|
const { screenX, screenY, outerWidth, outerHeight } = window
|
|
const notificationTop = Math.round(screenY + (outerHeight / 2) - (NOTIFICATION_HEIGHT / 2))
|
|
const notificationLeft = Math.round(screenX + (outerWidth / 2) - (NOTIFICATION_WIDTH / 2))
|
|
const cb = (currentPopup) => {
|
|
this._popupId = currentPopup.id
|
|
}
|
|
// create new notification popup
|
|
const creation = extension.windows.create({
|
|
url: 'notification.html',
|
|
type: 'popup',
|
|
width: NOTIFICATION_WIDTH,
|
|
height: NOTIFICATION_HEIGHT,
|
|
top: Math.max(notificationTop, 0),
|
|
left: Math.max(notificationLeft, 0),
|
|
}, cb)
|
|
creation && creation.then && creation.then(cb)
|
|
}
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Closes a MetaMask notification if it window exists.
|
|
*
|
|
*/
|
|
closePopup () {
|
|
// closes notification popup
|
|
this._getPopup((err, popup) => {
|
|
if (err) {
|
|
throw err
|
|
}
|
|
if (!popup) {
|
|
return
|
|
}
|
|
extension.windows.remove(popup.id, console.error)
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Checks all open MetaMask windows, and returns the first one it finds that is a notification window (i.e. has the
|
|
* type 'popup')
|
|
*
|
|
* @private
|
|
* @param {Function} cb A node style callback that to whcih the found notification window will be passed.
|
|
*
|
|
*/
|
|
_getPopup (cb) {
|
|
this._getWindows((err, windows) => {
|
|
if (err) {
|
|
throw err
|
|
}
|
|
cb(null, this._getPopupIn(windows))
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Returns all open MetaMask windows.
|
|
*
|
|
* @private
|
|
* @param {Function} cb A node style callback that to which the windows will be passed.
|
|
*
|
|
*/
|
|
_getWindows (cb) {
|
|
// Ignore in test environment
|
|
if (!extension.windows) {
|
|
return cb()
|
|
}
|
|
|
|
extension.windows.getAll({}, (windows) => {
|
|
cb(null, windows)
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Given an array of windows, returns the 'popup' that has been opened by MetaMask, or null if no such window exists.
|
|
*
|
|
* @private
|
|
* @param {array} windows An array of objects containing data about the open MetaMask extension windows.
|
|
*
|
|
*/
|
|
_getPopupIn (windows) {
|
|
return windows ? windows.find((win) => {
|
|
// Returns notification popup
|
|
return (win && win.type === 'popup' && win.id === this._popupId)
|
|
}) : null
|
|
}
|
|
|
|
}
|
|
|
|
export default NotificationManager
|
|
|