aboutsummaryrefslogtreecommitdiffstats
path: root/ui/app/components/pending-tx.js
blob: bbdac3bc4c5fdf9a49180d0327b8e961c8f27e44 (plain) (blame)
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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
const Component = require('react').Component
const h = require('react-hyperscript')
const inherits = require('util').inherits
const actions = require('../actions')

const ethUtil = require('ethereumjs-util')
const BN = ethUtil.BN
const hexToBn = require('../../../app/scripts/lib/hex-to-bn')

const MiniAccountPanel = require('./mini-account-panel')
const EthBalance = require('./eth-balance')
const util = require('../util')
const addressSummary = util.addressSummary
const nameForAddress = require('../../lib/contract-namer')
const HexInput = require('./hex-as-decimal-input')

const MIN_GAS_PRICE_GWEI_BN = new BN(2)
const GWEI_FACTOR = new BN(1e9)
const MIN_GAS_PRICE_BN = MIN_GAS_PRICE_GWEI_BN.mul(GWEI_FACTOR)
const MIN_GAS_LIMIT_BN = new BN(21000)

module.exports = PendingTx
inherits(PendingTx, Component)
function PendingTx () {
  Component.call(this)
  this.state = {
    valid: true,
    txData: null,
  }
}

PendingTx.prototype.render = function () {
  const props = this.props
  const conversionRate = props.conversionRate
  const txMeta = this.gatherTxMeta()
  const txParams = txMeta.txParams || {}

  // Account Details
  const address = txParams.from || props.selectedAddress
  const identity = props.identities[address] || { address: address }
  const account = props.accounts[address]
  const balance = account ? account.balance : '0x0'

  // Gas
  const gas = txParams.gas
  const gasBn = hexToBn(gas)

  // Gas Price
  const gasPrice = txParams.gasPrice || MIN_GAS_PRICE_BN.toString(16)
  const gasPriceBn = hexToBn(gasPrice)
  const gasPriceGweiBn = gasPriceBn.div(GWEI_FACTOR)

  const txFeeBn = gasBn.mul(gasPriceBn)
  const valueBn = hexToBn(txParams.value)
  const maxCost = txFeeBn.add(valueBn)

  const dataLength = txParams.data ? (txParams.data.length - 2) / 2 : 0

  const balanceBn = hexToBn(balance)
  const insufficientBalance = balanceBn.lt(maxCost)

  this.inputs = []

  return (

    h('div', {
      key: txMeta.id,
    }, [

      h('form#pending-tx-form', {
        onSubmit: this.onSubmit.bind(this),

      }, [

        // tx info
        h('div', [

          h('.flex-row.flex-center', {
            style: {
              maxWidth: '100%',
            },
          }, [

            h(MiniAccountPanel, {
              imageSeed: address,
              picOrder: 'right',
            }, [
              h('span.font-small', {
                style: {
                  fontFamily: 'Montserrat Bold, Montserrat, sans-serif',
                },
              }, identity.name),
              h('span.font-small', {
                style: {
                  fontFamily: 'Montserrat Light, Montserrat, sans-serif',
                },
              }, addressSummary(address, 6, 4, false)),

              h('span.font-small', {
                style: {
                  fontFamily: 'Montserrat Light, Montserrat, sans-serif',
                },
              }, [
                h(EthBalance, {
                  value: balance,
                  conversionRate,
                  inline: true,
                  labelColor: '#F7861C',
                }),
              ]),
            ]),

            forwardCarrat(),

            this.miniAccountPanelForRecipient(),
          ]),

          h('style', `
            .table-box {
              margin: 7px 0px 0px 0px;
              width: 100%;
            }
            .table-box .row {
              margin: 0px;
              background: rgb(236,236,236);
              display: flex;
              justify-content: space-between;
              font-family: Montserrat Light, sans-serif;
              font-size: 13px;
              padding: 5px 25px;
            }
            .table-box .row .value {
              font-family: Montserrat Regular;
            }
          `),

          h('.table-box', [

            // Ether Value
            // Currently not customizable, but easily modified
            // in the way that gas and gasLimit currently are.
            h('.row', [
              h('.cell.label', 'Amount'),
              h(EthBalance, { value: txParams.value }),
            ]),

            // Gas Limit (customizable)
            h('.cell.row', [
              h('.cell.label', 'Gas Limit'),
              h('.cell.value', {
              }, [
                h(HexInput, {
                  name: 'Gas Limit',
                  value: gas,
                  // The hard lower limit for gas.
                  min: MIN_GAS_LIMIT_BN.toString(10),
                  suffix: 'UNITS',
                  style: {
                    position: 'relative',
                    top: '5px',
                  },
                  onChange: this.gasLimitChanged.bind(this),

                  ref: (hexInput) => { this.inputs.push(hexInput) },
                }),
              ]),
            ]),

            // Gas Price (customizable)
            h('.cell.row', [
              h('.cell.label', 'Gas Price'),
              h('.cell.value', {
              }, [
                h(HexInput, {
                  name: 'Gas Price',
                  value: gasPriceGweiBn.toString(16),
                  suffix: 'GWEI',
                  min: MIN_GAS_PRICE_GWEI_BN.toString(10),
                  style: {
                    position: 'relative',
                    top: '5px',
                  },
                  onChange: this.gasPriceChanged.bind(this),
                  ref: (hexInput) => { this.inputs.push(hexInput) },
                }),
              ]),
            ]),

            // Max Transaction Fee (calculated)
            h('.cell.row', [
              h('.cell.label', 'Max Transaction Fee'),
              h(EthBalance, { value: txFeeBn.toString(16) }),
            ]),

            h('.cell.row', {
              style: {
                fontFamily: 'Montserrat Regular',
                background: 'white',
                padding: '10px 25px',
              },
            }, [
              h('.cell.label', 'Max Total'),
              h('.cell.value', {
                style: {
                  display: 'flex',
                  alignItems: 'center',
                },
              }, [
                h(EthBalance, {
                  value: maxCost.toString(16),
                  inline: true,
                  labelColor: 'black',
                  fontSize: '16px',
                }),
              ]),
            ]),

            // Data size row:
            h('.cell.row', {
              style: {
                background: '#f7f7f7',
                paddingBottom: '0px',
              },
            }, [
              h('.cell.label'),
              h('.cell.value', {
                style: {
                  fontFamily: 'Montserrat Light',
                  fontSize: '11px',
                },
              }, `Data included: ${dataLength} bytes`),
            ]),
          ]), // End of Table

        ]),

        h('style', `
          .conf-buttons button {
            margin-left: 10px;
            text-transform: uppercase;
          }
        `),

        txMeta.simulationFails ?
          h('.error', {
            style: {
              marginLeft: 50,
              fontSize: '0.9em',
            },
          }, 'Transaction Error. Exception thrown in contract code.')
        : null,

        insufficientBalance ?
          h('span.error', {
            style: {
              marginLeft: 50,
              fontSize: '0.9em',
            },
          }, 'Insufficient balance for transaction')
        : null,

        // send + cancel
        h('.flex-row.flex-space-around.conf-buttons', {
          style: {
            display: 'flex',
            justifyContent: 'flex-end',
            margin: '14px 25px',
          },
        }, [


          insufficientBalance ?
            h('button.btn-green', {
              onClick: props.buyEth,
            }, 'Buy Ether')
          : null,

          h('button', {
            onClick: (event) => {
              this.resetGasFields()
              event.preventDefault()
            },
          }, 'Reset'),

          // Accept Button
          h('input.confirm.btn-green', {
            type: 'submit',
            value: 'ACCEPT',
            style: { marginLeft: '10px' },
            disabled: insufficientBalance || !this.state.valid,
          }),

          h('button.cancel.btn-red', {
            onClick: props.cancelTransaction,
          }, 'Reject'),
        ]),
      ]),
    ])
  )
}

PendingTx.prototype.miniAccountPanelForRecipient = function () {
  const props = this.props
  const txData = props.txData
  const txParams = txData.txParams || {}
  const isContractDeploy = !('to' in txParams)

  // If it's not a contract deploy, send to the account
  if (!isContractDeploy) {
    return h(MiniAccountPanel, {
      imageSeed: txParams.to,
      picOrder: 'left',
    }, [
      h('span.font-small', {
        style: {
          fontFamily: 'Montserrat Bold, Montserrat, sans-serif',
        },
      }, nameForAddress(txParams.to, props.identities)),
      h('span.font-small', {
        style: {
          fontFamily: 'Montserrat Light, Montserrat, sans-serif',
        },
      }, addressSummary(txParams.to, 6, 4, false)),
    ])
  } else {
    return h(MiniAccountPanel, {
      picOrder: 'left',
    }, [

      h('span.font-small', {
        style: {
          fontFamily: 'Montserrat Bold, Montserrat, sans-serif',
        },
      }, 'New Contract'),

    ])
  }
}

PendingTx.prototype.gasPriceChanged = function (newHex) {
  log.info(`Gas price changed to: ${newHex}`)
  const inWei = hexToBn(newHex).mul(GWEI_FACTOR)
  const txMeta = this.gatherTxMeta()
  txMeta.txParams.gasPrice = inWei.toString(16)
  this.setState({ txData: txMeta })
}

PendingTx.prototype.gasLimitChanged = function (newHex) {
  log.info(`Gas limit changed to ${newHex}`)
  const txMeta = this.gatherTxMeta()
  txMeta.txParams.gas = newHex
  this.setState({ txData: txMeta })
}

PendingTx.prototype.resetGasFields = function () {
  log.debug(`pending-tx resetGasFields`)

  this.inputs.forEach((hexInput) => {
    if (hexInput) {
      hexInput.setValid()
    }
  })

  this.setState({
    txData: null,
    valid: true,
  })
}

PendingTx.prototype.onSubmit = function (event) {
  event.preventDefault()
  const txMeta = this.gatherTxMeta()
  const valid = this.checkValidity()
  this.setState({ valid })
  if (valid && this.verifyGasParams()) {
    this.props.sendTransaction(txMeta, event)
  } else {
    this.props.dispatch(actions.displayWarning('Invalid Gas Parameters'))
  }
}

PendingTx.prototype.checkValidity = function() {
  const form = this.getFormEl()
  const valid = form.checkValidity()
  return valid
}

PendingTx.prototype.getFormEl = function() {
  const form = document.querySelector('form#pending-tx-form')
  // Stub out form for unit tests:
  if (!form) {
    return { checkValidity() { return true } }
  }
  return form
}

// After a customizable state value has been updated,
PendingTx.prototype.gatherTxMeta = function () {
  log.debug(`pending-tx gatherTxMeta`)
  const props = this.props
  const state = this.state
  const txData = state.txData || props.txData

  log.debug(`UI has defaulted to tx meta ${JSON.stringify(txData)}`)
  return txData
}

PendingTx.prototype.verifyGasParams = function () {
  // We call this in case the gas has not been modified at all
  if (!this.state) { return true }
  return (
    this._notZeroOrEmptyString(this.state.gas) &&
    this._notZeroOrEmptyString(this.state.gasPrice)
  )
}

PendingTx.prototype._notZeroOrEmptyString = function (obj) {
  return obj !== '' && obj !== '0x0'
}

function forwardCarrat () {
  return (

    h('img', {
      src: 'images/forward-carrat.svg',
      style: {
        padding: '5px 6px 0px 10px',
        height: '37px',
      },
    })

  )
}