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1
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if ('serviceWorker' in navigator) { |
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2
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3
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jQuery(function () { |
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4
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showMessage('Service Worker active!', 'success'); |
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5
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}); |
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6
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const serviceWorkerScript = DOKU_BASE + 'doku.php?do=pwaoffline_serviceworker'; |
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7
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navigator.serviceWorker |
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8
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.register(serviceWorkerScript, { |
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9
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scope: '.' |
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10
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} |
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11
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) |
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12
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.then(function (registration) { |
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13
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if (registration.active) { |
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14
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registration.active.postMessage({ |
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15
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type: 'getLastUpdate', |
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16
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}); |
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17
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} |
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18
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} |
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19
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) |
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20
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; |
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21
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22
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navigator.serviceWorker.addEventListener('message', function swMessageListener(event){ |
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23
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console.log('[Main Script] received message: ', event.data); |
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24
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switch(event.data.type) { |
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25
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case 'lastUpdate': |
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26
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jQuery.get(DOKU_BASE + 'lib/exe/ajax.php', { |
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27
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call: 'plugin_pwaoffline', |
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28
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ts: event.data.ts, |
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29
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}).done(function (data) { |
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30
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navigator.serviceWorker.controller.postMessage({ |
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31
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type: 'updatePages', |
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32
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pages: data, |
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33
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}); |
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34
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}); |
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35
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} |
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36
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}); |
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37
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38
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} else { |
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39
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jQuery(function () { |
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40
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showMessage('Service Worker not supported!', 'error'); |
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41
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}); |
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42
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} |
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43
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44
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function reportStorageUsage() { |
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45
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46
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/** |
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47
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* @param {int} size the size in byte |
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48
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* @returns {string} The size in mebibyte with appended unit |
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49
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*/ |
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50
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function getAsStringMiB(size) { |
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51
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const CONVERSION_FACTOR = 1024; |
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52
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return Math.round(size/(CONVERSION_FACTOR * CONVERSION_FACTOR) * 10) / 10 + ' MiB'; |
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53
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} |
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54
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55
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navigator.storage.estimate().then(estimate => { |
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56
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const perc = Math.round((estimate.usage / estimate.quota) * 100 * 100) / 100; |
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57
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const severity = perc > 80 ? 'error' : perc > 20 ? 'notify' : 'info'; |
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58
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const usage = getAsStringMiB(estimate.usage); |
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59
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const quota = getAsStringMiB(estimate.quota); |
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60
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const msg = 'Current storage usage on this device for this origin: ' + usage + '/' + quota; |
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61
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showMessage(msg + ' ( ' + perc + ' % )', severity); |
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62
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}); |
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63
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} |
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64
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65
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function showMessage(message, severity) { |
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66
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let $msgArea = jQuery('div.pwaOfflineMSGArea'); |
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67
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if (!$msgArea.length) { |
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68
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$msgArea = jQuery('<div>').addClass('pwaOfflineMSGArea'); |
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69
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jQuery('#dokuwiki__header').after($msgArea); |
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70
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} |
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71
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$msgArea.append(jQuery('<div>') |
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72
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.text(message) |
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73
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.addClass(severity) |
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74
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); |
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75
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} |
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76
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77
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jQuery(function () { |
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78
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79
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const LIVE_DELAY = 10; |
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80
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const now = Math.floor(Date.now() / 1000); |
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81
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82
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const lag = now - JSINFO.plugins.pwaoffline.ts; |
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83
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84
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if (lag > LIVE_DELAY) { |
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85
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showMessage('This page may have been loaded from cache. Age in seconds: ' + lag, 'notify'); |
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86
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jQuery('.dokuwiki').addClass('pwa--is-offline'); |
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87
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} |
|
88
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89
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reportStorageUsage(); |
|
90
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91
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// if (!navigator.onLine) { |
|
92
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// jQuery('<div></div>').text('You appear to be offline') |
|
93
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// } |
|
94
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95
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}); |
micgro42 /
dokuwiki-plugin-pwaoffline
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.