mirror of
https://github.com/overleaf/overleaf.git
synced 2024-09-16 02:52:31 -04:00
42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
import * as PDFJS from 'pdfjs-dist/legacy/build/pdf'
|
|
|
|
export function buildHighlightElement(highlight, viewer) {
|
|
const pageView = viewer.getPageView(highlight.page - 1)
|
|
|
|
const viewport = pageView.viewport
|
|
|
|
const height = viewport.viewBox[3]
|
|
|
|
const rect = viewport.convertToViewportRectangle([
|
|
highlight.h, // xMin
|
|
height - (highlight.v + highlight.height) + 10, // yMin
|
|
highlight.h + highlight.width, // xMax
|
|
height - highlight.v + 10, // yMax
|
|
])
|
|
|
|
const [left, top, right, bottom] = PDFJS.Util.normalizeRect(rect)
|
|
|
|
const element = document.createElement('div')
|
|
element.style.left = Math.floor(left) + 'px'
|
|
element.style.top = Math.floor(top) + 'px'
|
|
element.style.width = Math.ceil(right - left) + 'px'
|
|
element.style.height = Math.ceil(bottom - top) + 'px'
|
|
element.style.backgroundColor = 'rgba(255,255,0)'
|
|
element.style.position = 'absolute'
|
|
element.style.display = 'inline-block'
|
|
element.style.scrollMargin = '72px'
|
|
element.style.pointerEvents = 'none'
|
|
element.style.opacity = '0'
|
|
element.style.transition = 'opacity 0.5s'
|
|
pageView.div.appendChild(element)
|
|
|
|
window.setTimeout(() => {
|
|
element.style.opacity = '0.3'
|
|
|
|
window.setTimeout(() => {
|
|
element.style.opacity = '0'
|
|
}, 1000)
|
|
}, 0)
|
|
|
|
return element
|
|
}
|