selected text in iframe
How to get a selected text inside a iframe. I my page i m having a iframe which is editable true. So how can i get the selected text in that iframe.
如何获得宽度和高度
原标题：How to get width and height
I am unable to get the width and height in react-pdf
I want to get the width and height in react-pdf without the debug attribute.
Desalination Demineralization Membrane Separator (MEMS) Unit-Level Flow Summary
{createHeader(herder_val)}
{createContent(items1, herder_val)}
问题回答
Use the measure method to get the width and height of the View component.
you can modify your code to get the width and height of your View
components.
import React, { useRef, useEffect } from react ;
import { Document, Page, Text, View, PDFViewer } from @react-
pdf/renderer ;
function MyPDF() {
const viewRef = useRef(null);
let width = 0;
let height = 0;
useEffect(() => {
if (viewRef.current) {
viewRef.current.measure((x, y, measuredWidth, measuredHeight) => {
width = measuredWidth;
height = measuredHeight;
console.log(`Width: ${width}, Height: ${height}`);
});
}
}, []);
return (
My View
);
}
export default MyPDF;
handleLoadSuccess = async (pdfObject) => {
// If you want to get the dimension for page 1 (1-indexed)
const page = await pdf.getPage(1);
console.log(page.width);
console.log(page.height);
};
render() {
You can get the height using onLoadSuccess and using the pdf with some of it s functions as below
const [height, setHeight] = useState(0);
{
const heightOfPage = await pdf
.getPage(1)
.then((page) => page.getViewport({ scale: 1 }).height);
setHeight(heightOfPage);
}}
>
;
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