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* Create RTL stylesheets using `gulp-rtl` * Handle RTL stylesheet special cases Certain blocks of Sass were set to bypass "rtlcss" using ignore comments. Certain icons had to be flipped 180 degrees. * Switch stylesheets when locale changes A second stylesheet has been added to each HTML page for use with right-to-left locales. It is disabled by default. It is enabled on startup if a RTL locale is set, and when switching to a RTL locale. Similarly the LTR stylesheet is disabled when a RTL locale is used. Unfortunately there is an unpleasant flash of unstyled content when switching between a LTR and a RTL locale. There is also a slightly longer page load time when using a RTL locale (<1s difference). We couldn't think of an easy way to avoid these problems. * Set `dir="auto"` as default on `TextFields`
31 lines
901 B
JavaScript
31 lines
901 B
JavaScript
/**
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* Switch the CSS stylesheet used between 'rtl' and 'ltr'
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* @param {('ltr' | 'rtl')} direction Text direction, either left-to-right (ltr) or right-to-left (rtl)
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*/
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const switchDirection = async (direction) => {
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if (direction === 'auto') {
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direction = 'ltr'
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}
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let updatedLink
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Array.from(document.getElementsByTagName('link'))
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.filter(link => link.rel === 'stylesheet')
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.forEach(link => {
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if (link.title === direction && link.disabled) {
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link.disabled = false
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updatedLink = link
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} else if (link.title !== direction && !link.disabled) {
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link.disabled = true
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}
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})
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if (updatedLink) {
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return new Promise((resolve, reject) => {
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updatedLink.onload = () => {
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resolve()
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}
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updatedLink.onerror = () => reject(new Error(`Failed to load '${direction}' stylesheet`))
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})
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}
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}
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export default switchDirection
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