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author | Chi Kei Chan <chikeichan@gmail.com> | 2018-01-20 07:29:36 +0800 |
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committer | Chi Kei Chan <chikeichan@gmail.com> | 2018-01-20 07:29:36 +0800 |
commit | 77c545336b38aefc6105cde1799b18066df8bef9 (patch) | |
tree | 121a140131c8cb1f4b746d8f37d4a403b0910aad /old-ui/app/components/hex-as-decimal-input.js | |
parent | 98b5a62fa74aa6730a25df28dfe5032cfb487697 (diff) | |
parent | 4e63924e607a07f94ff0a741a036ab352b0b7a3f (diff) | |
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Merge branch 'uat' into newmaster
Diffstat (limited to 'old-ui/app/components/hex-as-decimal-input.js')
-rw-r--r-- | old-ui/app/components/hex-as-decimal-input.js | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/old-ui/app/components/hex-as-decimal-input.js b/old-ui/app/components/hex-as-decimal-input.js new file mode 100644 index 000000000..4a71e9585 --- /dev/null +++ b/old-ui/app/components/hex-as-decimal-input.js @@ -0,0 +1,154 @@ +const Component = require('react').Component +const h = require('react-hyperscript') +const inherits = require('util').inherits +const ethUtil = require('ethereumjs-util') +const BN = ethUtil.BN +const extend = require('xtend') + +module.exports = HexAsDecimalInput + +inherits(HexAsDecimalInput, Component) +function HexAsDecimalInput () { + this.state = { invalid: null } + Component.call(this) +} + +/* Hex as Decimal Input + * + * A component for allowing easy, decimal editing + * of a passed in hex string value. + * + * On change, calls back its `onChange` function parameter + * and passes it an updated hex string. + */ + +HexAsDecimalInput.prototype.render = function () { + const props = this.props + const state = this.state + + const { value, onChange, min, max } = props + + const toEth = props.toEth + const suffix = props.suffix + const decimalValue = decimalize(value, toEth) + const style = props.style + + return ( + h('.flex-column', [ + h('.flex-row', { + style: { + alignItems: 'flex-end', + lineHeight: '13px', + fontFamily: 'Montserrat Light', + textRendering: 'geometricPrecision', + }, + }, [ + h('input.hex-input', { + type: 'number', + required: true, + min: min, + max: max, + style: extend({ + display: 'block', + textAlign: 'right', + backgroundColor: 'transparent', + border: '1px solid #bdbdbd', + + }, style), + value: parseInt(decimalValue), + onBlur: (event) => { + this.updateValidity(event) + }, + onChange: (event) => { + this.updateValidity(event) + const hexString = (event.target.value === '') ? '' : hexify(event.target.value) + onChange(hexString) + }, + onInvalid: (event) => { + const msg = this.constructWarning() + if (msg === state.invalid) { + return + } + this.setState({ invalid: msg }) + event.preventDefault() + return false + }, + }), + h('div', { + style: { + color: ' #AEAEAE', + fontSize: '12px', + marginLeft: '5px', + marginRight: '6px', + width: '20px', + }, + }, suffix), + ]), + + state.invalid ? h('span.error', { + style: { + position: 'absolute', + right: '0px', + textAlign: 'right', + transform: 'translateY(26px)', + padding: '3px', + background: 'rgba(255,255,255,0.85)', + zIndex: '1', + textTransform: 'capitalize', + border: '2px solid #E20202', + }, + }, state.invalid) : null, + ]) + ) +} + +HexAsDecimalInput.prototype.setValid = function (message) { + this.setState({ invalid: null }) +} + +HexAsDecimalInput.prototype.updateValidity = function (event) { + const target = event.target + const value = this.props.value + const newValue = target.value + + if (value === newValue) { + return + } + + const valid = target.checkValidity() + if (valid) { + this.setState({ invalid: null }) + } +} + +HexAsDecimalInput.prototype.constructWarning = function () { + const { name, min, max } = this.props + let message = name ? name + ' ' : '' + + if (min && max) { + message += `must be greater than or equal to ${min} and less than or equal to ${max}.` + } else if (min) { + message += `must be greater than or equal to ${min}.` + } else if (max) { + message += `must be less than or equal to ${max}.` + } else { + message += 'Invalid input.' + } + + return message +} + +function hexify (decimalString) { + const hexBN = new BN(parseInt(decimalString), 10) + return '0x' + hexBN.toString('hex') +} + +function decimalize (input, toEth) { + if (input === '') { + return '' + } else { + const strippedInput = ethUtil.stripHexPrefix(input) + const inputBN = new BN(strippedInput, 'hex') + return inputBN.toString(10) + } +} |