1 | (function () {
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2 |
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3 | if (typeof Prism === 'undefined' || typeof document === 'undefined') {
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4 | return;
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5 | }
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6 |
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7 | var callbacks = [];
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8 | var map = {};
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9 | var noop = function () {};
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10 |
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11 | Prism.plugins.toolbar = {};
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12 |
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13 | |
14 |
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15 |
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16 |
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17 |
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18 |
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19 |
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20 |
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21 | |
22 |
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23 |
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24 |
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25 |
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26 |
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27 | var registerButton = Prism.plugins.toolbar.registerButton = function (key, opts) {
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28 | var callback;
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29 |
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30 | if (typeof opts === 'function') {
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31 | callback = opts;
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32 | } else {
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33 | callback = function (env) {
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34 | var element;
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35 |
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36 | if (typeof opts.onClick === 'function') {
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37 | element = document.createElement('button');
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38 | element.type = 'button';
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39 | element.addEventListener('click', function () {
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40 | opts.onClick.call(this, env);
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41 | });
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42 | } else if (typeof opts.url === 'string') {
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43 | element = document.createElement('a');
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44 | element.href = opts.url;
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45 | } else {
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46 | element = document.createElement('span');
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47 | }
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48 |
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49 | if (opts.className) {
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50 | element.classList.add(opts.className);
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51 | }
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52 |
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53 | element.textContent = opts.text;
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54 |
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55 | return element;
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56 | };
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57 | }
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58 |
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59 | if (key in map) {
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60 | console.warn('There is a button with the key "' + key + '" registered already.');
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61 | return;
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62 | }
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63 |
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64 | callbacks.push(map[key] = callback);
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65 | };
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66 |
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67 | |
68 |
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69 |
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70 |
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71 |
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72 |
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73 | function getOrder(element) {
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74 | while (element) {
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75 | var order = element.getAttribute('data-toolbar-order');
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76 | if (order != null) {
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77 | order = order.trim();
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78 | if (order.length) {
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79 | return order.split(/\s*,\s*/g);
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80 | } else {
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81 | return [];
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82 | }
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83 | }
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84 | element = element.parentElement;
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85 | }
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86 | }
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87 |
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88 | |
89 |
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90 |
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91 |
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92 |
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93 | var hook = Prism.plugins.toolbar.hook = function (env) {
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94 |
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95 | var pre = env.element.parentNode;
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96 | if (!pre || !/pre/i.test(pre.nodeName)) {
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97 | return;
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98 | }
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99 |
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100 |
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101 | if (pre.parentNode.classList.contains('code-toolbar')) {
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102 | return;
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103 | }
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104 |
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105 |
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106 | var wrapper = document.createElement('div');
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107 | wrapper.classList.add('code-toolbar');
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108 | pre.parentNode.insertBefore(wrapper, pre);
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109 | wrapper.appendChild(pre);
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110 |
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111 |
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112 | var toolbar = document.createElement('div');
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113 | toolbar.classList.add('toolbar');
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114 |
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115 |
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116 | var elementCallbacks = callbacks;
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117 | var order = getOrder(env.element);
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118 | if (order) {
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119 | elementCallbacks = order.map(function (key) {
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120 | return map[key] || noop;
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121 | });
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122 | }
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123 |
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124 | elementCallbacks.forEach(function (callback) {
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125 | var element = callback(env);
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126 |
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127 | if (!element) {
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128 | return;
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129 | }
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130 |
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131 | var item = document.createElement('div');
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132 | item.classList.add('toolbar-item');
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133 |
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134 | item.appendChild(element);
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135 | toolbar.appendChild(item);
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136 | });
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137 |
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138 |
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139 | wrapper.appendChild(toolbar);
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140 | };
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141 |
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142 | registerButton('label', function (env) {
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143 | var pre = env.element.parentNode;
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144 | if (!pre || !/pre/i.test(pre.nodeName)) {
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145 | return;
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146 | }
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147 |
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148 | if (!pre.hasAttribute('data-label')) {
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149 | return;
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150 | }
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151 |
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152 | var element; var template;
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153 | var text = pre.getAttribute('data-label');
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154 | try {
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155 |
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156 | template = document.querySelector('template#' + text);
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157 | } catch (e) { }
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158 |
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159 | if (template) {
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160 | element = template.content;
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161 | } else {
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162 | if (pre.hasAttribute('data-url')) {
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163 | element = document.createElement('a');
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164 | element.href = pre.getAttribute('data-url');
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165 | } else {
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166 | element = document.createElement('span');
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167 | }
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168 |
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169 | element.textContent = text;
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170 | }
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171 |
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172 | return element;
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173 | });
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174 |
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175 | |
176 |
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177 |
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178 | Prism.hooks.add('complete', hook);
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179 | }());
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