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(function($) {
// Simple JavaScript Templating
// John Resig - http://ejohn.org/ - MIT Licensed
// adapted from: http://ejohn.org/blog/javascript-micro-templating/
// originally $.srender by Greg Borenstein http://ideasfordozens.com in Feb 2009
// modified for Sammy by Aaron Quint for caching templates by name
var srender_cache = {};
var srender = function(name, template, data) {
// target is an optional element; if provided, the result will be inserted into it
// otherwise the result will simply be returned to the caller
if (srender_cache[name]) {
fn = srender_cache[name];
} else {
if (typeof template == 'undefined') {
// was a cache check, return false
return false;
}
// Generate a reusable function that will serve as a template
// generator (and which will be cached).
fn = srender_cache[name] = new Function("obj",
"var p=[],print=function(){p.push.apply(p,arguments);};" +
// Introduce the data as local variables using with(){}
"with(obj){p.push(\"" +
// Convert the template into pure JavaScript
template
.replace(/[\r\t\n]/g, " ")
.replace(/\"/g, '\\"')
.split("<%").join("\t")
.replace(/((^|%>)[^\t]*)/g, "$1\r")
.replace(/\t=(.*?)%>/g, "\",$1,\"")
.split("\t").join("\");")
.split("%>").join("p.push(\"")
.split("\r").join("")
+ "\");}return p.join('');");
}
if (typeof data != 'undefined') {
return fn(data);
} else {
return fn;
}
};
Sammy = Sammy || {};
// <tt>Sammy.Template</tt> is a simple plugin that provides a way to create
// and render client side templates. The rendering code is based on John Resig's
// quick templates and Greg Borenstien's srender plugin.
// This is also a great template/boilerplate for Sammy plugins.
//
// Templates use <% %> tags to denote embedded javascript.
//
// === Examples
//
// Here is an example template (user.template):
//
// <div class="user">
// <div class="user-name"><%= user.name %></div>
// <% if (user.photo_url) { %>
// <div class="photo"><img src="<%= user.photo_url %>" /></div>
// <% } %>
// </div>
//
// Given that is a publicly accesible file, you would render it like:
//
// $.sammy(function() {
// // include the plugin
// this.use(Sammy.Template);
//
// this.get('#/', function() {
// // the template is rendered in the current context.
// this.user = {name: 'Aaron Quint'};
// // partial calls template() because of the file extension
// this.partial('user.template');
// })
// });
//
// You can also pass a second argument to use() that will alias the template
// method and therefore allow you to use a different extension for template files
// in <tt>partial()</tt>
//
// // alias to 'tpl'
// this.use(Sammy.Template, 'tpl');
//
// // now .tpl files will be run through srender
// this.get('#/', function() {
// this.partial('myfile.tpl');
// });
//
Sammy.Template = function(app, method_alias) {
// *Helper:* Uses simple templating to parse ERB like templates.
//
// === Arguments
//
// +template+:: A String template. '<% %>' tags are evaluated as Javascript and replaced with the elements in data.
// +data+:: An Object containing the replacement values for the template.
// data is extended with the <tt>EventContext</tt> allowing you to call its methods within the template.
// +name+:: An optional String name to cache the template.
//
var template = function(template, data, name) {
// use name for caching
if (typeof name == 'undefined') name = template;
return srender(name, template, $.extend({}, this, data));
};
// set the default method name/extension
if (!method_alias) method_alias = 'template';
// create the helper at the method alias
app.helper(method_alias, template);
};
})(jQuery);
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