1 | (function(){
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2 | if (typeof self === 'undefined' || !self.Prism || !self.document) {
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3 | return;
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4 | }
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5 |
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6 | if (!Prism.plugins.toolbar) {
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7 | console.warn('Copy to Clipboard plugin loaded before Toolbar plugin.');
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8 |
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9 | return;
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10 | }
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11 |
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12 | var ClipboardJS = window.ClipboardJS || undefined;
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13 |
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14 | if (!ClipboardJS && typeof require === 'function') {
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15 | ClipboardJS = require('clipboard');
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16 | }
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17 |
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18 | var callbacks = [];
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19 |
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20 | if (!ClipboardJS) {
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21 | var script = document.createElement('script');
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22 | var head = document.querySelector('head');
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23 |
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24 | script.onload = function() {
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25 | ClipboardJS = window.ClipboardJS;
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26 |
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27 | if (ClipboardJS) {
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28 | while (callbacks.length) {
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29 | callbacks.pop()();
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30 | }
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31 | }
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32 | };
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33 |
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34 | script.src = 'https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js';
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35 | head.appendChild(script);
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36 | }
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37 |
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38 | Prism.plugins.toolbar.registerButton('copy-to-clipboard', function (env) {
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39 | var linkCopy = document.createElement('button');
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40 | linkCopy.textContent = 'Copy';
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41 |
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42 | if (!ClipboardJS) {
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43 | callbacks.push(registerClipboard);
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44 | } else {
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45 | registerClipboard();
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46 | }
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47 |
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48 | return linkCopy;
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49 |
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50 | function registerClipboard() {
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51 | var clip = new ClipboardJS(linkCopy, {
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52 | 'text': function () {
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53 | return env.code;
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54 | }
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55 | });
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56 |
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57 | clip.on('success', function() {
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58 | linkCopy.textContent = 'Copied!';
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59 |
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60 | resetText();
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61 | });
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62 | clip.on('error', function () {
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63 | linkCopy.textContent = 'Press Ctrl+C to copy';
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64 |
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65 | resetText();
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66 | });
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67 | }
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68 |
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69 | function resetText() {
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70 | setTimeout(function () {
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71 | linkCopy.textContent = 'Copy';
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72 | }, 5000);
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73 | }
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74 | });
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75 | })();
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