marketplace-core-modules/helpers.js

161 строка
4.7 KiB
JavaScript
Исходник Обычный вид История

2014-11-05 20:49:26 +03:00
define('helpers',
['l10n', 'nunjucks', 'underscore', 'utils', 'format', 'settings', 'urls', 'user'],
function(l10n, nunjucks, _, utils) {
var SafeString = nunjucks.require('runtime').SafeString;
var filters = nunjucks.require('filters');
function make_safe(func) {
return function() {
return new SafeString(func.apply(this, arguments));
};
}
function safe_filter(name, func) {
filters[name] = make_safe(func);
}
filters.extend = function(base, kwargs) {
delete kwargs.__keywords;
return _.extend(base, kwargs);
};
filters.bgurl = utils.bgurl;
filters.urlparams = utils.urlparams;
filters.urlunparam = utils.urlunparam;
safe_filter('nl2br', function(obj) {
if (typeof obj !== 'string') {
return obj;
}
return obj.replace(/\n/g, '<br>');
});
safe_filter('make_data_attrs', function(obj) {
return _.pairs(obj).map(function(pair) {
return 'data-' + utils.escape_(pair[0]) + '="' + utils.escape_(pair[1]) + '"';
}).join(' ');
});
safe_filter('external_href', function(obj) {
return 'href="' + utils.escape_(obj) + '" target="_blank"';
});
filters.translate = utils.translate;
filters.numberfmt = function(num) {
if (typeof num === 'number' && num.toLocaleString) {
return num.toLocaleString();
}
return num;
};
filters.datetime = function(date) {
if (!date) {
return '';
}
var orig_date = date;
if (!(date instanceof Date)) {
date = new Date(date);
}
var dateStr = date.toLocaleString();
if (dateStr === 'Invalid Date') {
console.warn('Invalid date: ', orig_date);
return '';
} else {
return dateStr;
}
};
filters.filter = function(list, kwargs) {
var output = [];
outer:
for (var i = 0; i < list.length; i++) {
var val = list[i];
inner:
for (var prop in kwargs) {
if (!kwargs.hasOwnProperty(prop) || prop === '__keywords') continue inner;
if (!(prop in val)) continue outer;
if (Array.isArray(kwargs[prop]) ?
kwargs[prop].indexOf(val[prop]) === -1 :
val[prop] !== kwargs[prop]) continue outer;
}
output.push(val);
}
return output;
};
// Credit to ngoke and potch.
filters.hex2rgba = function(hex, o) {
hex = parseInt(hex.substring(hex[0] == '#' ? 1 : 0), 16);
return 'rgba(' +
(hex >> 16) + ',' +
((hex & 0x00FF00) >> 8) + ',' +
(hex & 0x0000FF) + ',' + o + ')';
};
safe_filter('stringify', JSON.stringify);
filters.format = require('format').format;
filters.sum = function(obj) {
return obj.reduce(function(mem, num) {return mem + num;}, 0);
};
// The exposed user object should know nothing of tokens.
var user = require('user');
var userobj = {
get_setting: user.get_setting,
get_settings: function() {
return _.clone(user.get_settings());
},
get_permission: user.get_permission,
has_developed: user.has_developed,
has_installed: user.has_installed,
has_purchased: user.has_purchased,
logged_in: user.logged_in
};
// Functions provided in the default context.
var helpers = {
api: require('urls').api.url,
apiHost: require('urls').api.host,
apiParams: require('urls').api.params,
anonApi: require('urls').api.unsigned.url,
anonApiParams: require('urls').api.unsigned.params,
url: require('urls').reverse,
media: require('urls').media,
_: make_safe(l10n.gettext),
_plural: make_safe(l10n.ngettext),
format: require('format').format,
settings: require('settings'),
capabilities: require('capabilities'),
user: userobj,
escape: utils.escape_,
len: function(x) {return x.length;},
max: Math.max,
min: Math.min,
range: _.range,
identity: function(obj) {
if ('__keywords' in obj) delete obj.__keywords;
return obj;
},
navigator: window.navigator,
screen: window.screen,
// TODO: Pull the default value from settings.
language: window.navigator.l10n ? window.navigator.l10n.language : 'en-US'
};
// Put the helpers into the nunjucks global.
var globals = nunjucks.require('globals');
for (var i in helpers) {
if (helpers.hasOwnProperty(i)) {
globals[i] = helpers[i];
}
}
return helpers;
});