TypeError：无法构造“ClipboardItem”：无法将值转换为“Blob”

Question

我想将文本和 html 写入用户剪贴板。我正在使用来自 MDN 的代码 sn-p：https://developer.mozilla.org/en-US/docs/Web/API/Clipboard/write

navigator.permissions.query({ name: 'clipboard-write' }).then(result => {
    if (result.state === 'granted') {
        let data = [new ClipboardItem({ "text/plain": message })];
        navigator.clipboard.write(data).then(function() {
            $.growl.notice({ message: ResourceService.getKey("CopyToClipboardSuccess"), location: "tc", title: "" });
        }, function() {
            $.growl.error({ message: ResourceService.getKey("CopyToClipboardError"), location: "tc", title: "" });
        });
    }
});

我得到的只是这个错误：

Uncaught (in promise) TypeError: Failed to construct 'ClipboardItem': Failed to convert value to 'Blob'.

还有其他方法可以将文本和 HTML 复制到剪贴板。我错过了什么？

Answer 1

假设您的消息是字符串类型，here is a demo code

你的代码是

navigator.permissions.query({ name: 'clipboard-write' }).then(result => {
    if (result.state === 'granted') {
        const type = 'text/plain';
        const blob = new Blob([message], { type });
        let data = [new ClipboardItem({ [type]: blob })];
        navigator.clipboard.write(data).then(function() {
            $.growl.notice({ message: ResourceService.getKey("CopyToClipboardSuccess"), location: "tc", title: "" });
        }, function() {
            $.growl.error({ message: ResourceService.getKey("CopyToClipboardError"), location: "tc", title: "" });
        });
    }
});

但剪贴板 API 和事件仍在草稿中，我建议使用 clipboard.js 等替代方案