Question

测试页：https://www.google.com

它适用于Chrome，但在Firefox Nightly 52.0a1中，点击通知后会出现此错误：

document.execCommand（'cut'/'copy'）被拒绝，因为它不是从短暂运行的用户生成的事件处理程序内部调用

copyTextToClipboard（）函数取自Copy to Clipboard in Chrome Extension

manifest.js

{
    "description": "Test for JSON Notifiaction + Clipboard Copy",
    "manifest_version": 2,
    "name": "Test3",
    "version": "1.0",

    "permissions": [
        "<all_urls>",
        "clipboardWrite",
        "notifications",
        "webRequest"
    ],

    "background": {
        "scripts": ["background.js"]
    }
}

background.js

'use strict';
let JSON_obj = {
        "name" : "ABCDEFG",
        "age"  : 3,
          };

function logURL(requestDetails) {
     // filter rules to check requestDetails.url for specific parameters {
        notify(JSON_obj);
     // }
}

function notify(notifyMessage) {
    var options = {
        type: "basic",
        iconUrl: chrome.extension.getURL("icons/test.png"),
        title: "",
        message: JSON.stringify(notifyMessage, null, "\t")
    };

    chrome.notifications.create("uniqueID3", options);
}

chrome.notifications.onClicked.addListener(function() {
    console.log('Clicked notification message text: ', JSON_obj);
    copyTextToClipboard(JSON.stringify(JSON_obj, null, "\t"));
});

function copyTextToClipboard(copyText) {
    var copyFrom = document.createElement("textarea");
    copyFrom.textContent = copyText;
    var body = document.getElementsByTagName('body')[0];
    body.appendChild(copyFrom);
    copyFrom.select();
    document.execCommand('copy');
    body.removeChild(copyFrom);
    }


chrome.webRequest.onBeforeRequest.addListener(
    logURL, {
        urls: ["<all_urls>"]
    }
);

Answer 1

请参阅https://github.com/mdn/webextensions-examples/blob/master/context-menu-copy-link-with-types/clipboard-helper.js#L2 - 您无法从后台脚本进行复制。您的copyTextToClipboard代码在注入到示例中完成的页面时工作正常：https://github.com/mdn/webextensions-examples/blob/master/context-menu-copy-link-with-types/background.js#L31

如何通过chrome.notification.create复制到剪贴板与chrome.notification.onClicked在Firefox WebExtension插件？

1 个答案: