Copy a Supported Selection from a Feishu Wiki document as a Plain-text Copy Result.
// ==UserScript==
// @name Copyability
// @name:zh-CN Copyability - 飞书文档复制助手
// @namespace https://github.com/lyydsheep/Copyability
// @version 0.2.2
// @description Copy a Supported Selection from a Feishu Wiki document as a Plain-text Copy Result.
// @description:zh-CN 将授权浏览者可见且可选中的飞书 Wiki 文本复制为纯文本。
// @author lyydsheep
// @homepageURL https://github.com/lyydsheep/Copyability
// @supportURL https://github.com/lyydsheep/Copyability/issues
// @match https://my.feishu.cn/wiki/*
// @run-at document-start
// @grant none
// ==/UserScript==
(() => {
"use strict";
let pendingPlainText = null;
let copySucceeded = false;
let failureTimer = null;
const showCopyFailure = () => {
document.querySelector('[data-copyability-feedback="error"]')?.remove();
const feedback = document.createElement("div");
feedback.dataset.copyabilityFeedback = "error";
feedback.setAttribute("role", "alert");
feedback.textContent = "Copy failed. Please try again.";
Object.assign(feedback.style, {
position: "fixed",
right: "16px",
bottom: "16px",
zIndex: "2147483647",
padding: "8px 12px",
borderRadius: "6px",
color: "white",
background: "#c9372c",
font: "14px/20px system-ui, sans-serif",
});
document.documentElement.append(feedback);
if (failureTimer !== null) clearTimeout(failureTimer);
failureTimer = setTimeout(() => {
feedback.remove();
failureTimer = null;
}, 1_500);
};
const supportedBlockSelector = [
'.block[data-block-type="text"]',
'.block[data-block-type="heading1"]',
'.block[data-block-type="heading2"]',
'.block[data-block-type="heading3"]',
'.block[data-block-type="bullet"]',
].join(",");
const containingElement = (node) =>
node.nodeType === Node.ELEMENT_NODE ? node : node.parentElement;
const supportedBlockFor = (node) => {
const line = containingElement(node)?.closest(".ace-line");
if (!line?.closest('.text-editor[contenteditable="false"]')) return null;
return line.closest(supportedBlockSelector);
};
const isSupportedSelection = (range) => {
if (
!supportedBlockFor(range.startContainer) ||
!supportedBlockFor(range.endContainer)
) {
return false;
}
const blocksAreSupported = [
...document.querySelectorAll(".block[data-block-type]"),
]
.filter((block) => range.intersectsNode(block))
.every(
(block) =>
block.dataset.blockType === "page" ||
block.dataset.blockType === "callout" ||
block.matches(supportedBlockSelector),
);
if (!blocksAreSupported) return false;
const root = range.commonAncestorContainer;
const textNodes = [];
if (root.nodeType === Node.TEXT_NODE) {
textNodes.push(root);
} else {
const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT);
for (let node = walker.nextNode(); node; node = walker.nextNode()) {
textNodes.push(node);
}
}
const selectedTextNodes = textNodes.filter(
(node) => node.textContent?.trim() && range.intersectsNode(node),
);
return (
selectedTextNodes.length > 0 &&
selectedTextNodes.every((node) => supportedBlockFor(node))
);
};
document.addEventListener(
"copy",
(event) => {
if (pendingPlainText === null || !event.clipboardData) return;
event.clipboardData.setData("text/plain", pendingPlainText);
event.preventDefault();
event.stopImmediatePropagation();
copySucceeded = true;
},
true,
);
document.addEventListener(
"keydown",
(event) => {
const isCopyRequest =
event.key.toLowerCase() === "c" &&
(event.ctrlKey || event.metaKey) &&
!event.altKey &&
!event.shiftKey;
if (!isCopyRequest) return;
const selection = window.getSelection();
if (!selection || selection.isCollapsed || selection.rangeCount === 0) return;
const range = selection.getRangeAt(0);
if (!isSupportedSelection(range)) return;
let plainText;
try {
plainText = selection.toString();
} catch {
showCopyFailure();
return;
}
if (!plainText.trim()) return;
pendingPlainText = plainText;
copySucceeded = false;
try {
document.execCommand("copy");
} catch {
// A rejected clipboard command is handled below as a Copy Failure.
} finally {
pendingPlainText = null;
}
if (copySucceeded) {
event.preventDefault();
event.stopImmediatePropagation();
} else {
showCopyFailure();
}
},
true,
);
})();