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10
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1 'use strict';
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2
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3 let currentChatId = null;
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12
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4 let eventSource;
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10
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5
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16
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6 function evalEvent(event) {
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17
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7 // console.log(event);
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16
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8 eval(event.data);
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9 }
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10
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15
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11 function setUserEventSource(userId) {
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12 let userEventSource = new EventSource(`${location.origin}/user/${userId}`);
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16
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13 userEventSource.onmessage = evalEvent;
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15
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14 }
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15
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10
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16 function selectChat(div) {
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17 let chatId = div.getAttribute('chat');
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18 if( chatId === currentChatId )
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19 return;
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20 let selected = div.parentNode.querySelector('[selected]');
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21 if( selected ) selected.removeAttribute('selected');
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22 div.setAttribute('selected','');
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23 ajax(`get_chat.js?chat=${chatId}`);
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24 currentChatId = chatId;
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12
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25
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26 if(eventSource) eventSource.close();
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27 eventSource = new EventSource(`${location.origin}/chat/${chatId}`);
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16
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28 eventSource.onmessage = evalEvent;
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12
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29 }
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30
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31 function gotChat(html) {
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32 document.querySelector('div[posts]').innerHTML = html;
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33 fixDates();
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34 document.querySelector('div[input] textarea').focus();
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35 document.querySelector('div[input]').scrollIntoView({block: 'end'});
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10
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36 }
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37
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38 function fixTextarea(event) {
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39 let textarea = event.target;
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40 textarea.style.height = 'initial';
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41 textarea.style.height = (textarea.scrollHeight+2) + 'px';
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42 textarea.scrollIntoViewIfNeeded(false);
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43 }
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44
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45 const isMobile = 'ontouchstart' in window || navigator.maxTouchPoints > 0 || navigator.msMaxTouchPoints > 0;
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46
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47 function addPost() {
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48 let textarea = document.querySelector('div[input] textarea');
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49 let text = textarea.value;
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50 if( text.trim() === '' )
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51 return;
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52 ajax(`add_post.js?chat=${currentChatId}&content=${encodeURIComponent(text)}`);
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53 textarea.value = '';
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54 }
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55
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56 function textareaKey(event) {
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57 if( event.keyCode===13 && !event.shiftKey && !event.ctrlKey && !isMobile ) {
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58 event.preventDefault();
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59 addPost();
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60 }
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61 }
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62
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63 function fixDates() {
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64 let spans = document.querySelectorAll('span[when][fix]');
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65 for( let span of spans ) {
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66 span.textContent = new Date(Number(span.textContent)).toLocaleString();
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67 span.removeAttribute('fix');
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68 }
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69 }
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11
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70
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71 function deleteChat() {
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72 ajax(`delete_chat.js?chat=${currentChatId}`);
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73 }
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12
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74
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75 function added(html) {
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76 let input = document.querySelector('div[input]');
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77 input.insertAdjacentHTML('beforebegin',html);
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78 fixDates();
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79 input.scrollIntoView({block: 'end'});
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80 }
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15
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81
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82 function getChats(chatId) {
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83 let first = document.querySelector('div[chat]');
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84 if( !first || first.getAttribute('chat') != chatId ) {
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85 // console.log('getChats');
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86 ajax('get_chats.js');
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87 }
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88 }
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89
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90 function gotChats(html) {
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91 document.querySelector('div[chats]').innerHTML = html;
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92 if( currentChatId ) {
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93 let current = document.querySelector(`div[chat="${currentChatId}"]`);
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16
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94 if( current ) {
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95 current.setAttribute('selected','');
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96 current.scrollIntoViewIfNeeded(false);
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97 } else {
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98 currentChatId = null;
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99 document.querySelector('div[posts]').innerHTML = '';
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100 }
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15
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101 }
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102 }
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