Select like a Boss

With this extension, you can easily select link text just like regular text, making it easier to copy. Just Select like a Boss! ;)

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Select like a Boss
// @namespace    https://github.com/lcandy2/Select-like-a-Boss
// @version      2024.3.16
// @license      MPL-2.0
// @description  With this extension, you can easily select link text just like regular text, making it easier to copy. Just Select like a Boss! ;)
// @author       seril🍋
// @match        *://*/*
// @run-at       document-end
// @homepageURL  https://lcandy2.github.io/Select-like-a-Boss/
// @icon         https://raw.githubusercontent.com/lcandy2/Select-like-a-Boss/main/src/icons/icon16.png
// @supportURL   https://github.com/lcandy2/Select-like-a-Boss/issues
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
const _bind = (evt, bind = true) => {
  const events = Array.isArray(evt) ? evt : [evt];
  const method = bind ? 'addEventListener' : 'removeEventListener';
  events.forEach(e => document[method](e, handlers[e], true));
};
const _unbind = (evt) => _bind(evt, false);

function getCurrentAnchor(n) {
  while (n && n !== document.body) {
    if (n instanceof HTMLAnchorElement || n instanceof HTMLButtonElement) return n;
    n = n.parentNode;
  }
  return null;
}

const stopEvent = (e) => {
  return e.preventDefault(), e.stopPropagation(), false;
};

// browser compatibility
const getRangeFromPoint = (x, y) => {
  if (document.caretPositionFromPoint) {
    let range = document.createRange();
    let p = document.caretPositionFromPoint(x, y);
    range.setStart(p.offsetNode, p.offset);
    return range;
  } else return document.caretRangeFromPoint(x, y);
}

// user style
const _letUserSelect = (function () {
  let n,
    styleElm = document.createElement('style');
  let _className = 'ext-Select-like-a-Boss',
    _property = '-webkit-user-select:text!important;outline-width:0!important;';
  document.head.appendChild(styleElm);
  styleElm.sheet.insertRule(`.${_className}{${_property}}`, 0);
  return (node) => {
    if (node) {
      (n = node).classList.add(_className);
    } else if (n) {
      n.classList.remove(_className);
      n = null;
    }
  };
})();

let selection = document.getSelection();
let cursor = {},
  movable,
  needDetermineUserSelection,
  needCreateStartSelection,
  needStopClick,
  userSelecting,
  regexTDTH = /T[HD]/;

const mainMouseDownHandler = (e) => {
  let t = e.target
  // console.log(t)
  if (e.button !== 0) return; // LMB only
  // resetVars
  needDetermineUserSelection = needCreateStartSelection = true;
  userSelecting = needStopClick = false;
  cursor.x = e.clientX;
  cursor.y = e.clientY;
  if (selection.type === 'Range') {
    let range = getRangeFromPoint(cursor.x, cursor.y);
    if (range && selection.getRangeAt(0).isPointInRange(range.startContainer, range.startOffset)
    ) return;
  }
  _letUserSelect();
  if (t.nodeType === 3) t = t.parentNode
  if (e.ctrlKey && regexTDTH.test(t.tagName) || e.altKey) return;
  let n = getCurrentAnchor(t);
  // console.log(n)
  if (['HTMLTextAreaElement', 'HTMLCanvasElement'].includes(t.constructor.name) || t.textContent === '' || !n) return;
  let rect = n.getBoundingClientRect();
  movable = { n: n, x: Math.round(rect.left), y: Math.round(rect.top), c: 0 };
  _bind(['mousemove', 'mouseup', 'dragend', 'dragstart']);
  _letUserSelect(n);
};

// detection range setting
let D = 3,
  K = 0.8;
function getOutFromMoveHandler() {
  _unbind(['mousemove', 'mouseup', 'dragend', 'dragstart', 'click']);
  _letUserSelect();
  selection.removeAllRanges();
}

const handlers = {
  mousemove: (e) => {
    if (movable) {
      if (movable.n.constructor !== HTMLAnchorElement && movable.n.draggable) {
        movable = null;
        return getOutFromMoveHandler();
      }
      if (movable.c++ < 12) {
        let rect = movable.n.getBoundingClientRect();
        if (
          Math.round(rect.left) !== movable.x ||
          Math.round(rect.top) !== movable.y
        ) {
          _unbind(['mousemove', 'mouseup', 'dragend', 'dragstart', 'click']);
          _letUserSelect();
          selection.removeAllRanges();
          return;
        }
      } else movable = null;
    }
    let x = e.clientX;
    let y = e.clientY;
    if (needCreateStartSelection) {
      if (!e.altKey || !e.ctrlKey) selection.removeAllRanges();
      let correct = x > cursor.x ? -2 : 2;
      let range = getRangeFromPoint(x + correct, y);
      if (range) {
        selection.addRange(range);
        needCreateStartSelection = false;
      }
    }
    if (needDetermineUserSelection) {
      let vx = Math.abs(cursor.x - x),
        vy = Math.abs(cursor.y - y);
      userSelecting = vy === 0 || vx / vy > K;
      if (vx > D || vy > D) {
        needDetermineUserSelection = false;
        if (userSelecting) {
          needStopClick = true;
          _bind('click');
        }
      }
    }
    if (userSelecting) {
      let range = getRangeFromPoint(x, y);
      if (range) selection.extend(range.startContainer, range.startOffset);
    }
  },
  dragstart: (e) => {
    _unbind('dragstart');
    if (userSelecting) return stopEvent(e);
  },
  mouseup: (e) => {
    _unbind(['mousemove', 'mouseup', 'dragstart', 'dragend']);
    if (!userSelecting && needStopClick) needStopClick = false;
    setTimeout(() => _unbind('click'), 111);
    if (selection.type !== 'Range') _letUserSelect();
  },
  dragend: () => {
    _unbind(['dragend', 'mousemove', 'mouseup']);
  },
  click: function (e) {
    _unbind('click');
    if (selection.type !== 'Range') _letUserSelect();
    if (needStopClick) return stopEvent(e);
  },
};

document.addEventListener('mousedown', mainMouseDownHandler, true);

})();