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const createId = require('hat')
const extend = require('xtend')
const unmountComponentAtNode = require('react-dom').unmountComponentAtNode
const findDOMNode = require('react-dom').findDOMNode
const render = require('react-dom').render
const h = require('react-hyperscript')
const PendingTxDetails = require('../../../ui/app/components/pending-tx-details')
const PendingMsgDetails = require('../../../ui/app/components/pending-msg-details')
const MetaMaskUiCss = require('../../../ui/css')
const extension = require('./extension')
var notificationHandlers = {}
const notifications = {
createUnlockRequestNotification: createUnlockRequestNotification,
createTxNotification: createTxNotification,
createMsgNotification: createMsgNotification,
}
module.exports = notifications
window.METAMASK_NOTIFIER = notifications
setupListeners()
function setupListeners () {
// guard for extension bug https://github.com/MetaMask/metamask-plugin/issues/236
if (!extension.notifications) return console.error('Chrome notifications API missing...')
// notification button press
extension.notifications.onButtonClicked.addListener(function (notificationId, buttonIndex) {
var handlers = notificationHandlers[notificationId]
if (buttonIndex === 0) {
handlers.confirm()
} else {
handlers.cancel()
}
extension.notifications.clear(notificationId)
})
// notification teardown
extension.notifications.onClosed.addListener(function (notificationId) {
delete notificationHandlers[notificationId]
})
}
// creation helper
function createUnlockRequestNotification (opts) {
// guard for extension bug https://github.com/MetaMask/metamask-plugin/issues/236
if (!extension.notifications) return console.error('Chrome notifications API missing...')
var message = 'An Ethereum app has requested a signature. Please unlock your account.'
var id = createId()
extension.notifications.create(id, {
type: 'basic',
iconUrl: '/images/icon-128.png',
title: opts.title,
message: message,
})
}
function createTxNotification (state) {
// guard for extension bug https://github.com/MetaMask/metamask-plugin/issues/236
if (!extension.notifications) return console.error('Chrome notifications API missing...')
renderTxNotificationSVG(state, function (err, notificationSvgSource) {
if (err) throw err
showNotification(extend(state, {
title: 'New Unsigned Transaction',
imageUrl: toSvgUri(notificationSvgSource),
}))
})
}
function createMsgNotification (state) {
// guard for extension bug https://github.com/MetaMask/metamask-plugin/issues/236
if (!extension.notifications) return console.error('Chrome notifications API missing...')
renderMsgNotificationSVG(state, function (err, notificationSvgSource) {
if (err) throw err
showNotification(extend(state, {
title: 'New Unsigned Message',
imageUrl: toSvgUri(notificationSvgSource),
}))
})
}
function showNotification (state) {
// guard for extension bug https://github.com/MetaMask/metamask-plugin/issues/236
if (!extension.notifications) return console.error('Chrome notifications API missing...')
var id = createId()
extension.notifications.create(id, {
type: 'image',
requireInteraction: true,
iconUrl: '/images/icon-128.png',
imageUrl: state.imageUrl,
title: state.title,
message: '',
buttons: [{
title: 'Approve',
}, {
title: 'Reject',
}],
})
notificationHandlers[id] = {
confirm: state.onConfirm,
cancel: state.onCancel,
}
}
function renderTxNotificationSVG (state, cb) {
var content = h(PendingTxDetails, state)
renderNotificationSVG(content, cb)
}
function renderMsgNotificationSVG (state, cb) {
var content = h(PendingMsgDetails, state)
renderNotificationSVG(content, cb)
}
function renderNotificationSVG (content, cb) {
var container = document.createElement('div')
var confirmView = h('div.app-primary', {
style: {
width: '360px',
height: '240px',
padding: '16px',
// background: '#F7F7F7',
background: 'white',
},
}, [
h('style', MetaMaskUiCss()),
content,
])
render(confirmView, container, function ready() {
var rootElement = findDOMNode(this)
var viewSource = rootElement.outerHTML
unmountComponentAtNode(container)
var svgSource = svgWrapper(viewSource)
// insert content into svg wrapper
cb(null, svgSource)
})
}
function svgWrapper (content) {
var wrapperSource = `
<svg xmlns="http://www.w3.org/2000/svg" width="360" height="240">
<foreignObject x="0" y="0" width="100%" height="100%">
<body xmlns="http://www.w3.org/1999/xhtml" height="100%">{{content}}</body>
</foreignObject>
</svg>
`
return wrapperSource.split('{{content}}').join(content)
}
function toSvgUri (content) {
return 'data:image/svg+xml;utf8,' + encodeURIComponent(content)
}
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