helpers.js
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'use strict';
const url = require('url');
const _ = require('lodash');
const config = require('../config/common');
const assetUrl = config.assetUrl;
module.exports = {
imgSrc: function(imgSrc) {
return url.resolve(assetUrl, imgSrc);
},
image2: function(imageUrl, opts) {
if (imageUrl && _.isString(imageUrl)) {
let params = opts.hash;
let urls = imageUrl.split('?');
let query = urls[1] || '';
let uri = urls[0];
if (uri.indexOf('http:') === 0) {
uri = uri.replace('http:', '');
}
if (query) {
query = query.replace(/{width}/g, params.w).replace(/{height}/g, params.h).replace(/{mode}/g, (params.mode || 2));
if (query.indexOf('imageView2') === 0) {
if (params.q && query.indexOf('/q/') > 0) {
query = query.replace(/\/q\/\d+/g, '/q/' + params.q);
} else if (params.q) {
query += '/q/' + params.q;
}
} else if (query.indexOf('imageMogr2') === 0) {
if (params.q && query.indexOf('/quality/') > 0) {
query = query.replace(/\/quality\/\d+/g, '/quality/' + params.q);
} else if (params.q) {
query += '/quality/' + params.q;
}
} else if (query.indexOf('imageView/') === 0){
if (params.q && query.indexOf('/q/') > 0) {
query = query.replace(/\/q\/\d+/g, '/q/' + params.q);
} else if (params.q) {
query += '/q/' + params.q;
}
if (params.mode) {
query = query.replace(/imageView\/\d{1}\//, 'imageView/' + params.mode + '/');
}
}
} else {
query = 'imageView2/2/interlace/1/q/' + (params.q || 75);
}
return uri + '?' + query;
} else {
return '';
}
},
ifor: function() {
var args = Array.prototype.slice.call(arguments);
var opt = args[args.length - 1];
var isTrue = false;
for (var i = 0; i < args.length - 1; i++) {
if (args[i]) {
isTrue = true;
break;
}
}
if (isTrue) {
return opt.fn(this);
} else {
return opt.inverse(this);
}
},
/**
* 小于某zhi
*
* @param variable
* @param number
*/
within: function(variable, number, opt) {
if (variable < number) {
return opt.fn(this);
} else {
return opt.inverse(this);
}
}
};