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83636a02ef
Add 'apply', 'formatTime' and 'nl2br' Handlebars helpers. Also add QUnit tests for 'apply' helper.
75 lines
2.2 KiB
JavaScript
75 lines
2.2 KiB
JavaScript
/**
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* @preserve This file is part of Mibew Messenger project.
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* http://mibew.org
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*
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* Copyright (c) 2005-2011 Mibew Messenger Community
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* License: http://mibew.org/license.php
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*/
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/**
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* Register 'apply' Handlebars helper.
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*
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* This helper provide an ability to apply several helpers to single Handlebars
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* expression
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*/
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Handlebars.registerHelper('apply', function(text, helpers) {
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var result = text;
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var validHelperName = /^[0-9A-z_]+$/;
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helpers = helpers.split(/\s*,\s*/);
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for (var prop in helpers) {
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if (! helpers.hasOwnProperty(prop) ||
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! validHelperName.test(helpers[prop])) {
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continue;
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}
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if (typeof Handlebars.helpers[helpers[prop]] != 'function') {
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throw new Error(
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"Unregistered helper '" + helpers[prop] + "'!"
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);
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}
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result = Handlebars.helpers[helpers[prop]](result);
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}
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return new Handlebars.SafeString(result);
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});
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/**
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* Register 'formatTime' Handlebars helper.
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*
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* This helper takes unix timestamp as argument and return time in "HH:MM:SS"
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* format
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*/
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Handlebars.registerHelper('formatTime', function(unixTimestamp){
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var d = new Date(unixTimestamp * 1000);
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// Get time parts
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var hours = d.getHours().toString();
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var minutes = d.getMinutes().toString();
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var seconds = d.getSeconds().toString();
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// Add leading zero if needed
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hours = hours > 10 ? hours : '0' + hours;
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minutes = minutes > 10 ? minutes : '0' + minutes;
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seconds = seconds > 10 ? seconds : '0' + seconds;
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// Build result string
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return hours + ':' + minutes + ':' + seconds;
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});
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/**
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* Register 'urlReplace' Handlebars helper.
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*
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* This helper serch URLs and replace them by 'a' tag
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*/
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Handlebars.registerHelper('urlReplace', function(text) {
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return new Handlebars.SafeString(
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text.replace(
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/((?:https?|ftp):\/\/\S*)/g,
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'<a href="$1" target="_blank">$1</a>'
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)
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);
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});
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/**
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* Register 'nl2br' Handlebars helper.
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*
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* This helper replace all new line characters (\n) by 'br' tags
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*/
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Handlebars.registerHelper('nl2br', function(text) {
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return new Handlebars.SafeString(text.replace(/\n/g, "<br/>"));
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}); |