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copy_text.js

复制文字内容到剪切板

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/492927/1362733/copy_textjs.js 

  1. // ==UserScript==
  2. // @name         copy_text.js
  3. // @namespace    https://github.com/iibeibei
  4. // @version      0.0.1
  5. // @description  复制文字内容到剪切板
  6. // @author       Beibei
  7. // @license      GPLv3
  8. // @match        *://*/*
  9. // ==/UserScript==
  10.  
  11. self.copyText = function (button, content, success) {
  12. 	if (!button) {
  13. 		return;
  14. 	}
  15.  
  16. 	if (typeof content == 'function') {
  17. 		success = content;
  18. 		content = null;
  19. 	}
  20.  
  21. 	success = success || function () {};
  22.  
  23. 	// 是否降级使用
  24. 	var isFallback = !navigator.clipboard;
  25.  
  26. 	if (typeof button == 'string' && !content) {
  27. 		if (content === false) {
  28. 			isFallback = true;
  29. 		}
  30. 		content = button;
  31. 		button = null;
  32. 	}
  33.  
  34. 	var eleTextarea = document.querySelector('#tempTextarea');
  35. 	if (!eleTextarea && isFallback) {
  36. 		eleTextarea = document.createElement('textarea');
  37. 		eleTextarea.style.width = 0;
  38. 		eleTextarea.style.position = 'fixed';
  39. 		eleTextarea.style.left = '-999px';
  40. 		eleTextarea.style.top = '10px';
  41. 		eleTextarea.setAttribute('readonly', 'readonly');
  42. 		document.body.appendChild(eleTextarea);
  43. 	}
  44.  
  45. 	var funCopy = function (text, callback) {
  46. 		callback = callback || function () {};
  47.  
  48. 		if (!isFallback) {
  49. 			navigator.clipboard.writeText(text).then(
  50. 				function () {
  51. 					callback();
  52. 					// 成功回调
  53. 					success(text);
  54. 				},
  55. 				function () {
  56. 					// 禁止写入剪切板后使用兜底方法
  57. 					copyText(text, false);
  58. 					callback();
  59. 					// 成功回调
  60. 					success(text);
  61. 				}
  62. 			);
  63.  
  64. 			return;
  65. 		}
  66.  
  67. 		eleTextarea.value = text;
  68. 		eleTextarea.select();
  69. 		document.execCommand('copy', true);
  70.  
  71. 		callback();
  72. 		// 成功回调
  73. 		success(text);
  74. 	};
  75.  
  76. 	// 提示复制成功的方法
  77. 	// 对外可访问
  78. 	copyText.tips = function (event) {
  79. 		if (!event) {
  80. 			return;
  81. 		}
  82. 		// 复制成功提示
  83. 		var eleTips = document.createElement('span');
  84. 		eleTips.className = 'text-popup';
  85. 		eleTips.innerHTML = '复制成功';
  86. 		document.body.appendChild(eleTips);
  87. 		// 事件
  88. 		eleTips.addEventListener('animationend', function () {
  89. 			eleTips.parentNode.removeChild(eleTips);
  90. 		});
  91. 		// For IE9
  92. 		if (!history.pushState) {
  93. 			setTimeout(function () {
  94. 				eleTips.parentNode.removeChild(eleTips);
  95. 			}, 1000);
  96. 		}
  97.  
  98. 		eleTips.style.left = event.pageX - eleTips.clientWidth / 2 + 'px';
  99. 		eleTips.style.top = event.pageY - eleTips.clientHeight + 'px';
  100. 	};
  101.  
  102. 	var strStyle =
  103. 		'.text-popup { animation: textPopup 1s both; -ms-transform: translateY(-20px); color: #01cf97; user-select: none; white-space: nowrap; position: absolute; z-index: 99; }@keyframes textPopup {0%, 100% { opacity: 0; } 5% { opacity: 1; } 100% { transform: translateY(-50px); }}';
  104.  
  105. 	var eleStyle = document.querySelector('#popupStyle');
  106. 	if (!eleStyle) {
  107. 		eleStyle = document.createElement('style');
  108. 		eleStyle.id = 'popupStyle';
  109. 		eleStyle.innerHTML = strStyle;
  110. 		document.head.appendChild(eleStyle);
  111. 	}
  112.  
  113. 	if (!button) {
  114. 		funCopy(content);
  115. 		return;
  116. 	}
  117.  
  118. 	// 事件绑定
  119. 	button.addEventListener('click', function (event) {
  120. 		var strCopy = content;
  121. 		if (content && content.tagName) {
  122. 			strCopy = content.textContent || content.value;
  123. 		}
  124. 		// 复制的文字内容
  125. 		if (!strCopy) {
  126. 			return;
  127. 		}
  128.  
  129. 		funCopy(strCopy, function () {
  130. 			copyText.tips(event);
  131. 		});
  132. 	});
  133. };