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Code Issues Releases Wiki Activity

Refactor Handlebars helpers.

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This commit is contained in:
hacksalot
2015-12-18 10:10:30 -05:00
parent a630741098
commit d708a6c6d8
2 changed files with 78 additions and 57 deletions
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59
src/eng/handlebars-generator.js
View File

@@ -11,9 +11,8 @@ Definition of the HandlebarsGenerator class.
var _ = require('underscore')
, HANDLEBARS = require('handlebars')
, FS = require('fs')
, moment = require('moment')
, MD = require('marked')
, H2W = require('../utils/html-to-wpml');
, _ = require('underscore')
, registerHelpers = require('./handlebars-helpers');
@@ -46,58 +45,4 @@ Definition of the HandlebarsGenerator class.
/**
Register useful Handlebars helpers.
@method registerHelpers
*/
function registerHelpers() {
// Set up a date formatting helper so we can do:
// {{#formatDate val 'YYYY-MM'}}
HANDLEBARS.registerHelper("formatDate", function(datetime, format) {
if( moment ) {
return moment( datetime ).format( format );
}
else {
return datetime;
}
});
// Set up a Markdown-to-WordProcessingML helper so we can do:
// {{#wmpl val [true|false]}}
HANDLEBARS.registerHelper("wpml", function( txt, inline ) {
inline = (inline && !inline.hash) || false;
txt = inline ?
MD(txt.trim()).replace(/^\s*<p>|<\/p>\s*$/gi, '') :
MD(txt.trim());
txt = H2W( txt.trim() );
return txt;
});
// Set up a generic conditional helper so we can do:
// {{#compare val otherVal operator="<"}}
// http://doginthehat.com.au/2012/02/comparison-block-helper-for-handlebars-templates/
HANDLEBARS.registerHelper('compare', function(lvalue, rvalue, options) {
if (arguments.length < 3)
throw new Error("Handlerbars Helper 'compare' needs 2 parameters");
var operator = options.hash.operator || "==";
var operators = {
'==': function(l,r) { return l == r; },
'===': function(l,r) { return l === r; },
'!=': function(l,r) { return l != r; },
'<': function(l,r) { return l < r; },
'>': function(l,r) { return l > r; },
'<=': function(l,r) { return l <= r; },
'>=': function(l,r) { return l >= r; },
'typeof': function(l,r) { return typeof l == r; }
};
if (!operators[operator])
throw new Error("Handlerbars Helper 'compare' doesn't know the operator "+operator);
var result = operators[operator](lvalue,rvalue);
return result ? options.fn(this) : options.inverse(this);
});
}
}());

76
src/eng/handlebars-helpers.js Normal file
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@@ -0,0 +1,76 @@
/**
Template helper definitions for Handlebars.
@license MIT. Copyright (c) 2015 James Devlin / FluentDesk.
@module handlebars-helpers.js
*/
(function() {
var HANDLEBARS = require('handlebars')
, MD = require('marked')
, H2W = require('../utils/html-to-wpml')
, moment = require('moment');
/**
Register useful Handlebars helpers.
@method registerHelpers
*/
module.exports = function() {
// Set up a date formatting helper so we can do:
// {{formatDate val 'YYYY-MM'}}
HANDLEBARS.registerHelper("formatDate", function(datetime, format) {
return moment ? moment( datetime ).format( format ) : datetime;
});
// Set up a Markdown-to-WordProcessingML helper so we can do:
// {{wmpl val [true|false]}}
HANDLEBARS.registerHelper("wpml", function( txt, inline ) {
if(!txt) return '';
inline = (inline && !inline.hash) || false;
txt = inline ?
MD(txt.trim()).replace(/^\s*<p>|<\/p>\s*$/gi, '') :
MD(txt.trim());
txt = H2W( txt.trim() );
return txt;
});
// Set up a last-word helper so we can do:
// {{lastWord val [true|false]}}
HANDLEBARS.registerHelper("lastWord", function( txt ) {
return txt && txt.trim() ? _.last( txt.split(' ') ) : '';
});
// Set up a Markdown-to-WordProcessingML helper so we can do:
// {{initialWords val [true|false]}}
HANDLEBARS.registerHelper("initialWords", function( txt ) {
return txt && txt.trim() ? _.initial( txt.split(' ') ).join(' ') : '';
});
// Set up a generic conditional helper so we can do:
// {{compare val otherVal operator="<"}}
// http://doginthehat.com.au/2012/02/comparison-block-helper-for-handlebars-templates/
HANDLEBARS.registerHelper('compare', function(lvalue, rvalue, options) {
if (arguments.length < 3)
throw new Error("Handlerbars Helper 'compare' needs 2 parameters");
var operator = options.hash.operator || "==";
var operators = {
'==': function(l,r) { return l == r; },
'===': function(l,r) { return l === r; },
'!=': function(l,r) { return l != r; },
'<': function(l,r) { return l < r; },
'>': function(l,r) { return l > r; },
'<=': function(l,r) { return l <= r; },
'>=': function(l,r) { return l >= r; },
'typeof': function(l,r) { return typeof l == r; }
};
if (!operators[operator])
throw new Error("Handlerbars Helper 'compare' doesn't know the operator "+operator);
var result = operators[operator](lvalue,rvalue);
return result ? options.fn(this) : options.inverse(this);
});
};
}());