无法访问模块功能中的 quill 实例

Sha*_*oon 5 javascript closures reactjs quill

我有:

    const formats = ['header', 'bold', 'italic', 'underline', 'list', 'prediction', 'accepted', 'mention'];
    const modules = {
        mention: {
            allowedChars: /^[a-zA-Z0-9_]*$/,
            mentionDenotationChars: ['@'],
            showDenotationChar: false,
            spaceAfterInsert: false,
            onSelect: (item, insertItem) => {
                clearDocumentState(0)
                const cursorPos = quill.getSelection()
                console.log({ cursorPos })
                insertItem(item)
            },
            source: () => { }
        },
        toolbar: [
            ['bold', 'italic', 'underline'],
            [{ list: 'ordered' }, { list: 'bullet' }],
            [{ header: [1, 2, false] }],
            ['clean']
        ]
    };

    const { quill, quillRef, Quill } = useQuill({
        formats,
        modules,
        placeholder: 'Start writing something amazing...'
    });
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如果重要的话,我正在使用https://github.com/afry/quill-mentionhttps://github.com/gtgalone/react-quilljs

当我尝试访问函数中的quill实例时onSelect,我得到:

TypeError: Cannot read property 'getSelection' of undefined
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我假设该函数以某种方式被缓存并且quill尚未定义。有什么办法可以得到那个实例吗?

lis*_*tdm 2

当 quill 有值时,您可以onSelect在 block 中设置回调。useEffect使用getModule获取mention模块并设置相应的option

 React.useEffect(() => {
    if (quill) {
      quill.getModule('mention').options.onSelect = ((item, insertItem) => {
        clearDocumentState(0);
        const cursorPos = quill.getSelection();
        console.log({ cursorPos });
        insertItem(item);
      });
    }
  }, [quill]);
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工作示例