docs/data/material/components/menus/ContextMenu.tsx - master - githubmirror/material-ui

docs/data/material/components/menus/ContextMenu.tsx
71 строка2 KB
NooBat
[fix] Fix Context Menu selection lost on Safari (#44903)
25 фев 2025, 17:43
25 фев 2025, 17:43ccba24b
import * as React from 'react';
import Menu from '@mui/material/Menu';
import MenuItem from '@mui/material/MenuItem';
import Typography from '@mui/material/Typography';

export default function ContextMenu() {
  const [contextMenu, setContextMenu] = React.useState<{
    mouseX: number;
    mouseY: number;
  } | null>(null);

  const handleContextMenu = (event: React.MouseEvent) => {
    event.preventDefault();

    setContextMenu(
      contextMenu === null
        ? {
            mouseX: event.clientX + 2,
            mouseY: event.clientY - 6,
          }
        : // repeated contextmenu when it is already open closes it with Chrome 84 on Ubuntu
          // Other native context menus might behave different.
          // With this behavior we prevent contextmenu from the backdrop to re-locale existing context menus.
          null,
    );

    // Prevent text selection lost after opening the context menu on Safari and Firefox
    const selection = document.getSelection();
    if (selection && selection.rangeCount > 0) {
      const range = selection.getRangeAt(0);

      setTimeout(() => {
        selection.addRange(range);
      });
    }
  };

  const handleClose = () => {
    setContextMenu(null);
  };

  return (
    <div onContextMenu={handleContextMenu} style={{ cursor: 'context-menu' }}>
      <Typography>
        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam ipsum purus,
        bibendum sit amet vulputate eget, porta semper ligula. Donec bibendum
        vulputate erat, ac fringilla mi finibus nec. Donec ac dolor sed dolor
        porttitor blandit vel vel purus. Fusce vel malesuada ligula. Nam quis
        vehicula ante, eu finibus est. Proin ullamcorper fermentum orci, quis finibus
        massa. Nunc lobortis, massa ut rutrum ultrices, metus metus finibus ex, sit
        amet facilisis neque enim sed neque. Quisque accumsan metus vel maximus
        consequat. Suspendisse lacinia tellus a libero volutpat maximus.
      </Typography>
      <Menu
        open={contextMenu !== null}
        onClose={handleClose}
        anchorReference="anchorPosition"
        anchorPosition={
          contextMenu !== null
            ? { top: contextMenu.mouseY, left: contextMenu.mouseX }
            : undefined
        }
      >
        <MenuItem onClick={handleClose}>Copy</MenuItem>
        <MenuItem onClick={handleClose}>Print</MenuItem>
        <MenuItem onClick={handleClose}>Highlight</MenuItem>
        <MenuItem onClick={handleClose}>Email</MenuItem>
      </Menu>
    </div>
  );
}