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 | var callbacks = [];
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7 | var map = {};
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8 | var noop = function() {};
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9 |
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10 | Prism.plugins.toolbar = {};
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11 |
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12 | |
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14 |
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15 |
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16 |
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18 |
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19 |
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20 | |
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22 |
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23 |
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24 |
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25 |
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26 | var registerButton = Prism.plugins.toolbar.registerButton = function (key, opts) {
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27 | var callback;
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28 |
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29 | if (typeof opts === 'function') {
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30 | callback = opts;
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31 | } else {
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32 | callback = function (env) {
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33 | var element;
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34 |
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35 | if (typeof opts.onClick === 'function') {
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36 | element = document.createElement('button');
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37 | element.type = 'button';
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38 | element.addEventListener('click', function () {
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39 | opts.onClick.call(this, env);
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40 | });
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41 | } else if (typeof opts.url === 'string') {
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42 | element = document.createElement('a');
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43 | element.href = opts.url;
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44 | } else {
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45 | element = document.createElement('span');
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46 | }
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47 |
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48 | if (opts.className) {
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49 | element.classList.add(opts.className);
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50 | }
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51 |
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52 | element.textContent = opts.text;
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53 |
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54 | return element;
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55 | };
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56 | }
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57 |
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58 | if (key in map) {
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59 | console.warn('There is a button with the key "' + key + '" registered already.');
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60 | return;
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61 | }
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62 |
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63 | callbacks.push(map[key] = callback);
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64 | };
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65 |
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66 | |
67 |
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68 |
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69 |
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70 |
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71 |
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72 | function getOrder(element) {
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73 | while (element) {
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74 | var order = element.getAttribute('data-toolbar-order');
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75 | if (order != null) {
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76 | order = order.trim();
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77 | if (order.length) {
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78 | return order.split(/\s*,\s*/g);
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79 | } else {
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80 | return [];
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81 | }
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82 | }
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83 | element = element.parentElement;
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84 | }
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85 | }
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86 |
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87 | |
88 |
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89 |
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90 |
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91 |
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92 | var hook = Prism.plugins.toolbar.hook = function (env) {
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93 |
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94 | var pre = env.element.parentNode;
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95 | if (!pre || !/pre/i.test(pre.nodeName)) {
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96 | return;
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97 | }
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98 |
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99 |
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100 | if (pre.parentNode.classList.contains('code-toolbar')) {
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101 | return;
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102 | }
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103 |
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104 |
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105 | var wrapper = document.createElement('div');
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106 | wrapper.classList.add('code-toolbar');
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107 | pre.parentNode.insertBefore(wrapper, pre);
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108 | wrapper.appendChild(pre);
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109 |
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110 |
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111 | var toolbar = document.createElement('div');
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112 | toolbar.classList.add('toolbar');
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113 |
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114 |
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115 | var elementCallbacks = callbacks;
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116 | var order = getOrder(env.element);
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117 | if (order) {
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118 | elementCallbacks = order.map(function (key) {
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119 | return map[key] || noop;
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120 | });
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121 | }
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122 |
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123 | elementCallbacks.forEach(function(callback) {
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124 | var element = callback(env);
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125 |
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126 | if (!element) {
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127 | return;
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128 | }
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129 |
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130 | var item = document.createElement('div');
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131 | item.classList.add('toolbar-item');
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132 |
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133 | item.appendChild(element);
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134 | toolbar.appendChild(item);
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135 | });
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136 |
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137 |
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138 | wrapper.appendChild(toolbar);
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139 | };
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140 |
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141 | registerButton('label', function(env) {
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142 | var pre = env.element.parentNode;
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143 | if (!pre || !/pre/i.test(pre.nodeName)) {
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144 | return;
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145 | }
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146 |
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147 | if (!pre.hasAttribute('data-label')) {
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148 | return;
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149 | }
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150 |
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151 | var element, template;
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152 | var text = pre.getAttribute('data-label');
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153 | try {
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154 |
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155 | template = document.querySelector('template#' + text);
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156 | } catch (e) {}
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157 |
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158 | if (template) {
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159 | element = template.content;
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160 | } else {
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161 | if (pre.hasAttribute('data-url')) {
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162 | element = document.createElement('a');
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163 | element.href = pre.getAttribute('data-url');
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164 | } else {
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165 | element = document.createElement('span');
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166 | }
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167 |
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168 | element.textContent = text;
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169 | }
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170 |
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171 | return element;
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172 | });
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173 |
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174 | |
175 |
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176 |
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177 | Prism.hooks.add('complete', hook);
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178 | })();
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