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annotate show.js @ 1067:82ecea33c477

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Various cleanups.
author Matti Hamalainen <ccr@tnsp.org>
date Tue, 24 Jan 2017 16:43:58 +0200
parents 511147c1e119
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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511147c1e119 Move some of the show.php javascript code to show.js.
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1 //
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2 // FAPWeb - Simple Web-based Demoparty Management System
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3 // Party main screen viewer
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4 // (C) Copyright 2012-2017 Tecnic Software productions (TNSP)
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5 //
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6
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7 var failCount = 0;
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8 var lastUpdate = 0;
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9 var errorView = false;
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10
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11
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12 function updateView(txt)
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13 {
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14 var view = document.getElementById("mainView");
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15 if (view && txt != false && txt != "")
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16 view.innerHTML = txt;
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17 }
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18
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19
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20 function displayError()
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21 {
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22 // Increase failure count
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23 if (++failCount >= 3 && !errorView)
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24 {
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25 errorView = true;
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26 updateView("<div class=\"slideHeader\"><div class=\"slideHeaderDiv\"></div></div><div class=\"slideText\"><div class=\"guru\">Software Failure.&nbsp;&nbsp;&nbsp;Press left mouse button to continue.<br />Guru Meditation #00000004.0000AAC0</div></div>");
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27 }
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28 }
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29
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30
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31 //
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32 // Update view when triggered by main tick
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33 //
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34 function viewChanged()
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35 {
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36 var msuccess2 = function(txt)
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37 {
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38 // Successfully fetched new data, initiate view update
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39 updateView(txt);
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40 }
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41
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42 var msuccess1 = function(txt)
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43 {
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44 lastUpdate = txt;
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45 jsSendPOSTRequest("action=get&type=slide", msuccess2, displayError);
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46 }
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47
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48 jsSendPOSTRequest("action=get&type=update", msuccess1, displayError);
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49 }
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50
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51
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52 function setTickUpdate(qtime)
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53 {
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54 if (!timeOutSet)
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55 {
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56 timeOutSet = true;
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57 setTimeout(function() { tickMain(); }, qtime);
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58 }
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59 }
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60
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61
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62 //
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63 // Main tick function, check for updates from server
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64 //
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65 function tickMain()
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66 {
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67 timeOutSet = false;
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68
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69 var msuccess = function(txt)
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70 {
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71 failCount = 0;
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72 if (txt == "changed")
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73 {
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74 viewChanged();
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75 setTickUpdate(250);
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76 }
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77 else
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78 if (txt == "reload")
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79 {
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80 location.reload();
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81 }
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82 else
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83 {
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84 setTickUpdate(500);
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85 }
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86 }
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87
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88 var mfail = function(txt)
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89 {
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90 displayError();
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91 setTickUpdate(5000);
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92 }
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93
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94 jsSendPOSTRequest("action=check&lastUpdate="+lastUpdate, msuccess, mfail);
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95 }
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96
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97 var timeOutSet = false;
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98 setTickUpdate(100);
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99 viewChanged();