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Clamp the string when there are no spaces #45

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Clamp the string when there are no spaces #45

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13 changes: 11 additions & 2 deletions src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -102,7 +102,7 @@ class LinesEllipsis extends React.Component {
this.canvas.innerHTML = this.units.map((c) => {
return `<span class='LinesEllipsis-unit'>${c}</span>`
}).join('')
const ellipsisIndex = this.putEllipsis(this.calcIndexes())
const ellipsisIndex = this.putEllipsis(this.calcIndexes(basedOn))
const clamped = ellipsisIndex > -1
const newState = {
clamped,
Expand All @@ -111,19 +111,28 @@ class LinesEllipsis extends React.Component {
this.setState(newState, props.onReflow.bind(this, newState))
}

calcIndexes () {
calcIndexes (basedOn) {
const indexes = [0]
let elt = this.canvas.firstElementChild
if (!elt) return indexes

let index = 0
let line = 1
let offsetTop = elt.offsetTop
let canvasWidth = this.canvas.offsetWidth
let sumElementsWidth = 0
while ((elt = elt.nextElementSibling)) {
if (elt.offsetTop === offsetTop) {
sumElementsWidth += elt.offsetWidth
}
if (elt.offsetTop > offsetTop) {
line++
indexes.push(index)
offsetTop = elt.offsetTop
sumElementsWidth = 0
} else if (sumElementsWidth > canvasWidth && basedOn === 'letters') {
line++
indexes.push(index)
}
index++
if (line > this.maxLine) {
Expand Down