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10
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1 'use strict';
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2
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18
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3 let title = document.title;
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10
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4 let currentChatId = null;
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12
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5 let eventSource;
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30
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6 let lastUpdate;
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35
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7 let userId;
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10
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8
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16
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9 function evalEvent(event) {
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17
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10 // console.log(event);
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16
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11 eval(event.data);
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12 }
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13
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15
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14 function setUserEventSource(userId) {
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15 let userEventSource = new EventSource(`${location.origin}/user/${userId}`);
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16
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16 userEventSource.onmessage = evalEvent;
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15
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17 }
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18
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46
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19 function selectChat(div,email) {
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48
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20 document.querySelector('div[chat_content]').setAttribute('show','posts');
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10
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21 let chatId = div.getAttribute('chat');
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22 if( chatId === currentChatId )
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23 return;
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24 let selected = div.parentNode.querySelector('[selected]');
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25 if( selected ) selected.removeAttribute('selected');
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26 div.setAttribute('selected','');
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27 ajax(`get_chat.js?chat=${chatId}`);
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28 currentChatId = chatId;
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34
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29 history.replaceState(null,null,`?with=${email}`);
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53
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30 clearUnread();
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12
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31
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32 if(eventSource) eventSource.close();
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33 eventSource = new EventSource(`${location.origin}/chat/${chatId}`);
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16
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34 eventSource.onmessage = evalEvent;
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12
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35 }
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36
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27
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37 function back() {
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48
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38 document.querySelector('div[chat_content]').setAttribute('show','chats');
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27
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39 }
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40
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12
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41 function gotChat(html) {
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42 document.querySelector('div[posts]').innerHTML = html;
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19
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43 fixPosts();
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12
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44 document.querySelector('div[input] textarea').focus();
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45 document.querySelector('div[input]').scrollIntoView({block: 'end'});
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10
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46 }
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47
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48 function fixTextarea(event) {
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49 let textarea = event.target;
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50 textarea.style.height = 'initial';
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51 textarea.style.height = (textarea.scrollHeight+2) + 'px';
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52 textarea.scrollIntoViewIfNeeded(false);
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53 }
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54
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55 const isMobile = 'ontouchstart' in window || navigator.maxTouchPoints > 0 || navigator.msMaxTouchPoints > 0;
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56
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57 function addPost() {
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58 let textarea = document.querySelector('div[input] textarea');
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59 let text = textarea.value;
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60 if( text.trim() === '' )
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61 return;
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24
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62 ajax(`add_post.js?chat=${currentChatId}`,`content=${encodeURIComponent(text)}`);
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10
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63 textarea.value = '';
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64 }
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65
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66 function textareaKey(event) {
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67 if( event.keyCode===13 && !event.shiftKey && !event.ctrlKey && !isMobile ) {
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68 event.preventDefault();
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69 addPost();
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70 }
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71 }
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72
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19
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73 function fixPosts() {
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35
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74 let divs = document.querySelectorAll('div[post][fix]');
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19
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75 for( let div of divs ) {
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35
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76 let whenSpan = div.querySelector('span[when]');
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39
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77 whenSpan.textContent = new Date(Number(whenSpan.textContent)).toLocaleString([],{dateStyle:'short',timeStyle:'short'});
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78 let textDiv = div.querySelector('div[text]');
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79 textDiv.innerHTML = urlsToLinks(textDiv.innerHTML);
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80 if( div.getAttribute('author') === userId )
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81 div.querySelector('span[pulldown]').innerHTML = document.querySelector('div[hidden] span[pulldown]').innerHTML;
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19
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82 div.removeAttribute('fix');
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83 }
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10
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84 }
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11
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85
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86 function deleteChat() {
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20
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87 let dialog = document.querySelector('dialog[delete_chat]');
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88 openModal(dialog);
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89 }
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90
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91 function doDeleteChat(el) {
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92 closeModal(el);
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93 ajax(`delete_chat.js?chat=${currentChatId}`);
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94 }
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12
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95
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23
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96 let currentPostId;
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97
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38
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98 function getPostId(el) {
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99 while(true) {
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100 let postId = el.getAttribute('post');
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101 if( postId )
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102 return postId;
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103 el = el.parentNode;
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104 }
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105 }
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106
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107 function deletePost(el) {
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108 currentPostId = getPostId(el);
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23
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109 let dialog = document.querySelector('dialog[delete_post]');
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110 openModal(dialog);
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111 }
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112
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113 function doDeletePost(el) {
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114 closeModal(el);
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115 ajax(`delete_post.js?post=${currentPostId}`);
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116 }
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117
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118 function deleted(postId) {
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119 let div = document.querySelector(`div[post="${postId}"]`);
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120 if( div )
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121 div.outerHTML = '';
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122 }
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123
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38
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124 function editPost(el) {
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125 ajax(`edit_post.js?post=${getPostId(el)}`);
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24
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126 }
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127
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128 function openEditPost(postId,text) {
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129 currentPostId = postId;
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130 let dialog = document.querySelector('dialog[edit_post]');
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131 let textarea = dialog.querySelector('textarea');
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132 textarea.value = text;
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133 openModal(dialog);
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134 }
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135
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136 function savePost(el) {
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137 let text = document.querySelector('dialog[edit_post] textarea').value;
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138 closeModal(el);
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139 ajax(`save_post.js?post=${currentPostId}`,`content=${encodeURIComponent(text)}`);
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140 }
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141
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142 function edited(postId,html) {
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143 let div = document.querySelector(`div[post="${postId}"]`);
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144 if( div ) {
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145 div.outerHTML = html;
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146 fixPosts();
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147 }
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148 }
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149
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12
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150 function added(html) {
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151 let input = document.querySelector('div[input]');
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152 input.insertAdjacentHTML('beforebegin',html);
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19
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153 fixPosts();
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12
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154 input.scrollIntoView({block: 'end'});
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54
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155 ajax(`added.js?chat=${currentChatId}`);
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40
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156 if( document.hasFocus() )
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157 ajax('active.js');
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12
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158 }
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15
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159
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30
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160 function getChats(chatId,updated) {
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15
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161 let first = document.querySelector('div[chat]');
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53
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162 if( !first || first.getAttribute('chat') !== chatId ) {
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15
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163 // console.log('getChats');
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164 ajax('get_chats.js');
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53
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165 } else if( first && currentChatId !== chatId ) {
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166 incUnread(first);
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15
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167 }
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30
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168 if( updated )
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169 lastUpdate = updated;
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40
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170 if( !document.hasFocus() ) {
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31
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171 document.title = title + ' *';
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172 }
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15
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173 }
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174
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175 function gotChats(html) {
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176 document.querySelector('div[chats]').innerHTML = html;
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177 if( currentChatId ) {
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178 let current = document.querySelector(`div[chat="${currentChatId}"]`);
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16
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179 if( current ) {
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180 current.setAttribute('selected','');
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181 current.scrollIntoViewIfNeeded(false);
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182 } else {
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183 currentChatId = null;
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184 document.querySelector('div[posts]').innerHTML = '';
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185 }
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15
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186 }
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187 }
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18
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188
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189 window.onfocus = function() {
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33
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190 // console.log('onfocus');
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18
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191 document.title = title;
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40
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192 ajax('active.js');
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18
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193 };
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19
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194
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195 let urlRegex = /(^|\s)(https?:\/\/\S+)/g;
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196
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197 function urlsToLinks(text) {
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40
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198 return text.replace( urlRegex, '$1<a target="_blank" href="$2">$2</a>' );
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19
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199 }
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22
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200
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201 let currentPulldown = null;
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202 let newPulldown = null;
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203
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204 function clickMenu(clicked,display) {
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205 //console.log("clickMenu");
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206 let pulldown = clicked.parentNode.querySelector('div');
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207 if( pulldown !== currentPulldown ) {
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208 pulldown.style.display = display || "block";
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209 newPulldown = pulldown;
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210 window.onclick = function() {
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211 //console.log("window.onclick");
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212 if( currentPulldown ) {
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213 currentPulldown.style.display = "none";
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214 if( !newPulldown )
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215 window.onclick = null;
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216 }
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217 currentPulldown = newPulldown;
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218 newPulldown = null;
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219 };
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220 pulldown.scrollIntoViewIfNeeded(false);
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221 }
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222 }
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30
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223
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42
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224 function heartbeat() {
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33
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225 showOnline();
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226 ajax(`heartbeat.js?last_update=${lastUpdate}`);
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42
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227 }
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228
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229 setInterval( heartbeat, 10000 );
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30
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230
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33
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231 let online = {};
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232
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233 function setOnline(userId) {
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234 online[userId] = Date.now();
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235 }
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236
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237 function showOnline() {
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42
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238 let old = Date.now() - 70000;
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33
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239 for( let id of Object.keys(online) ) {
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240 if( online[id] < old )
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241 delete online[id];
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242 }
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243 let a = [];
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244 for( let id in online ) {
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245 a.push( `span[online="${id}"]` );
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246 }
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247 let style = document.querySelector('style[online]');
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248 if( a.length === 0 ) {
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249 style.innerHTML = '';
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250 } else {
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251 style.innerHTML = `
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252 ${a.join(', ')} {
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253 background-color: green;
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254 }
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255 ` ;
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256 }
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257 }
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53
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258
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259 function clearUnread() {
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260 let span = document.querySelector(`div[chat="${currentChatId}"] span[unread]`);
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261 span.setAttribute('unread','0');
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262 span.textContent = '0';
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263 }
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264
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265 function incUnread(div) {
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266 let span = div.querySelector('span[unread]');
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267 let n = parseInt(span.getAttribute('unread')) + 1;
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268 span.setAttribute('unread',n);
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269 span.textContent = n;
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270 }
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