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GitHub Copy Code Snippet

A userscript adds a copy to clipboard button on hover of markdown code snippets

Από την 09/04/2018. Δείτε την τελευταία έκδοση.

  1. // ==UserScript==
  2. // @name        GitHub Copy Code Snippet
  3. // @version     0.2.3
  4. // @description A userscript adds a copy to clipboard button on hover of markdown code snippets
  5. // @license     MIT
  6. // @author      Rob Garrison
  7. // @namespace   https://github.com/Mottie
  8. // @include     https://github.com/*
  9. // @include     https://gist.github.com/*
  10. // @run-at      document-idle
  11. // @grant       GM_addStyle
  12. // @require     https://greatest.deepsurf.us/scripts/28721-mutations/code/mutations.js?version=264157
  13. // @icon        https://assets-cdn.github.com/pinned-octocat.svg
  14. // ==/UserScript==
  15. (() => {
  16. 	"use strict";
  17.  
  18. 	const markdownSelector = ".markdown-body, .markdown-format",
  19. 		codeSelector = "pre:not(.gh-csc-pre)",
  20.  
  21. 		copyButton = document.createElement("button");
  22.  
  23. 	addAttr(copyButton, {
  24. 		"aria-label": "Copy to clipboard",
  25. 		className: "js-zeroclipboard btn btn-sm zeroclipboard-button tooltipped tooltipped-w gh-csc-button",
  26. 		"data-copied-hint": "Copied!",
  27. 		type: "button",
  28. 		innerHTML: `
  29. 			<svg aria-hidden="true" class="octicon octicon-clippy" height="16" viewBox="0 0 14 16" width="14">
  30. 				<path fill-rule="evenodd" d="M2 13h4v1H2v-1zm5-6H2v1h5V7zm2 3V8l-3 3 3 3v-2h5v-2H9zM4.5 9H2v1h2.5V9zM2 12h2.5v-1H2v1zm9 1h1v2c-.02.28-.11.52-.3.7-.19.18-.42.28-.7.3H1c-.55 0-1-.45-1-1V4c0-.55.45-1 1-1h3c0-1.11.89-2 2-2 1.11 0 2 .89 2 2h3c.55 0 1 .45 1 1v5h-1V6H1v9h10v-2zM2 5h8c0-.55-.45-1-1-1H8c-.55 0-1-.45-1-1s-.45-1-1-1-1 .45-1 1-.45 1-1 1H3c-.55 0-1 .45-1 1z"></path>
  31. 			</svg>`
  32. 	});
  33.  
  34. 	GM_addStyle(`
  35. 		.gh-csc-wrap {
  36. 			position: relative;
  37. 		}
  38. 		.gh-csc-wrap:hover .gh-csc-button {
  39. 			display: block;
  40. 		}
  41. 		.gh-csc-button {
  42. 			display: none;
  43. 			position: absolute;
  44. 			top: 3px;
  45. 			right: 3px;
  46. 			z-index: 20;
  47. 		}
  48. 		.gh-csc-wrap.ghd-code-wrapper .gh-csc-button {
  49. 			right: 31px;
  50. 		}
  51. 		.gh-csc-button svg {
  52. 			vertical-align: text-bottom;
  53. 		}
  54. 	`);
  55.  
  56. 	function addAttr(el, attrs) {
  57. 		Object.keys(attrs).forEach(attr => {
  58. 			const value = attrs[attr];
  59. 			switch(attr) {
  60. 			case "className":
  61. 				el.className = value;
  62. 				break;
  63. 			case "innerHTML":
  64. 				el.innerHTML = value;
  65. 				break;
  66. 			default:
  67. 				el.setAttribute(attr, value);
  68. 			}
  69. 		});
  70. 	}
  71.  
  72. 	function addButton(wrap, code) {
  73. 		wrap.classList.add("gh-csc-wrap", "js-zeroclipboard-container");
  74. 		code.classList.add("gh-csc-code", "js-zeroclipboard-target");
  75. 		wrap.insertBefore(copyButton.cloneNode(true), wrap.childNodes[0]);
  76. 	}
  77.  
  78. 	function init() {
  79. 		const markdown = document.querySelector(markdownSelector);
  80. 		if (markdown) {
  81. 			[...markdown.querySelectorAll(codeSelector)].forEach(pre => {
  82. 				let code = pre.querySelector("code");
  83. 				let wrap = pre.parentNode;
  84. 				if (code) {
  85. 					// pre > code
  86. 					addButton(pre, code);
  87. 				} else if (wrap.classList.contains("highlight")) {
  88. 					// div.highlight > pre
  89. 					addButton(wrap, pre);
  90. 				}
  91. 			});
  92. 		}
  93. 	}
  94.  
  95. 	document.addEventListener("ghmo:container", init);
  96. 	document.addEventListener("ghmo:comments", init);
  97. 	init();
  98. })();