pinafore/routes/_components/compose/ComposeLengthIndicator.html
2018-02-26 21:50:03 -08:00

46 lines
1.4 KiB
HTML

<span class="compose-box-length {{overLimit ? 'over-char-limit' : ''}}"
aria-label="{{inputLengthLabel}}">
{{inputLengthToDisplayAfterRaf || '0'}}
</span>
<style>
.compose-box-length {
grid-area: length;
justify-self: right;
color: var(--main-theme-color);
font-size: 1.3em;
align-self: center;
}
.compose-box-length.over-char-limit {
color: var(--warning-color);
}
</style>
<script>
import { CHAR_LIMIT } from '../../_static/statuses'
import { mark, stop } from '../../_utils/marks'
export default {
oncreate() {
// Avoid input delays by updating these values after a rAF
this.observe('inputLengthToDisplay', inputLengthToDisplay => {
requestAnimationFrame(() => {
mark('set inputLengthToDisplayAfterRaf')
this.set({inputLengthToDisplayAfterRaf: inputLengthToDisplay})
stop('set inputLengthToDisplayAfterRaf')
})
})
},
computed: {
overLimit: (inputLength) => inputLength > CHAR_LIMIT,
inputLength: (inputText) => inputText ? inputText.length : 0,
inputLengthToDisplay: (inputLength) => (inputLength <= CHAR_LIMIT ? inputLength : CHAR_LIMIT - inputLength),
inputLengthLabel: (overLimit, inputLengthToDisplay) => {
if (overLimit) {
return `${inputLengthToDisplay} characters over limit`
} else {
return `${inputLengthToDisplay} characters`
}
}
}
}
</script>