/*
* Based on:
* Ext JS Library 1.1.1
* Copyright(c) 2006-2007, Ext JS, LLC.
*
* Originally Released Under LGPL - original licence link has changed is not relivant.
*
* Fork - LGPL
* <script type="text/javascript">
*/
/**
* @class Roo.XTemplate
* @extends Roo.Template
* Provides a template that can have nested templates for loops or conditionals. The syntax is:
<pre><code>
var t = new Roo.XTemplate(
'<select name="{name}">',
'<tpl for="options"><option value="{value:trim}">{text:ellipsis(10)}</option></tpl>',
'</select>'
);
// then append, applying the master template values
</code></pre>
*
* Supported features:
*
* Tags:
<pre><code>
{a_variable} - output encoded.
{a_variable.format:("Y-m-d")} - call a method on the variable
{a_variable:raw} - unencoded output
{a_variable:toFixed(1,2)} - Roo.util.Format."toFixed"
{a_variable:this.method_on_template(...)} - call a method on the template object.
</code></pre>
* The tpl tag:
<pre><code>
<tpl for="a_variable or condition.."></tpl>
<tpl if="a_variable or condition"></tpl>
<tpl exec="some javascript"></tpl>
<tpl name="named_template"></tpl> (experimental)
<tpl for="."></tpl> - just iterate the property..
<tpl for=".."></tpl> - iterates with the parent (probably the template)
</code></pre>
*
*/
Roo.XTemplate = function()
{
Roo.XTemplate.superclass.constructor.apply(this, arguments);
if (this.html) {
this.compile();
}
};
Roo.extend(Roo.XTemplate, Roo.Template, {
/**
* The various sub templates
*/
tpls : false,
/**
*
* basic tag replacing syntax
* WORD:WORD()
*
* // you can fake an object call by doing this
* x.t:(test,tesT)
*
*/
re : /\{([\w-\.]+)(?:\:([\w\.]*)(?:\((.*?)?\))?)?\}/g,
/**
* compile the template
*
* This is not recursive, so I'm not sure how nested templates are really going to be handled..
*
*/
compile: function()
{
var s = this.html;
s = ['<tpl>', s, '</tpl>'].join('');
var re = /<tpl\b[^>]*>((?:(?=([^<]+))\2|<(?!tpl\b[^>]*>))*?)<\/tpl>/,
nameRe = /^<tpl\b[^>]*?for="(.*?)"/,
ifRe = /^<tpl\b[^>]*?if="(.*?)"/,
execRe = /^<tpl\b[^>]*?exec="(.*?)"/,
namedRe = /^<tpl\b[^>]*?name="(\w+)"/, // named templates..
m,
id = 0,
tpls = [];
while(true == !!(m = s.match(re))){
var forMatch = m[0].match(nameRe),
ifMatch = m[0].match(ifRe),
execMatch = m[0].match(execRe),
namedMatch = m[0].match(namedRe),
exp = null,
fn = null,
exec = null,
name = forMatch && forMatch[1] ? forMatch[1] : '';
if (ifMatch) {
// if - puts fn into test..
exp = ifMatch && ifMatch[1] ? ifMatch[1] : null;
if(exp){
fn = new Function('values', 'parent', 'with(values){ return '+(Roo.util.Format.htmlDecode(exp))+'; }');
}
}
if (execMatch) {
// exec - calls a function... returns empty if true is returned.
exp = execMatch && execMatch[1] ? execMatch[1] : null;
if(exp){
exec = new Function('values', 'parent', 'with(values){ '+(Roo.util.Format.htmlDecode(exp))+'; }');
}
}
if (name) {
// for =
switch(name){
case '.': name = new Function('values', 'parent', 'with(values){ return values; }'); break;
case '..': name = new Function('values', 'parent', 'with(values){ return parent; }'); break;
default: name = new Function('values', 'parent', 'with(values){ return '+name+'; }');
}
}
var uid = namedMatch ? namedMatch[1] : id;
tpls.push({
id: namedMatch ? namedMatch[1] : id,
target: name,
exec: exec,
test: fn,
body: m[1] || ''
});
if (namedMatch) {
s = s.replace(m[0], '');
} else {
s = s.replace(m[0], '{xtpl'+ id + '}');
}
++id;
}
this.tpls = [];
for(var i = tpls.length-1; i >= 0; --i){
this.compileTpl(tpls[i]);
this.tpls[tpls[i].id] = tpls[i];
}
this.master = tpls[tpls.length-1];
return this;
},
/**
* same as applyTemplate, except it's done to one of the subTemplates
* when using named templates, you can do:
*
* var str = pl.applySubTemplate('your-name', values);
*
*
* @param {Number} id of the template
* @param {Object} values to apply to template
* @param {Object} parent (normaly the instance of this object)
*/
applySubTemplate : function(id, values, parent)
{
var t = this.tpls[id];
try {
if(t.test && !t.test.call(this, values, parent)){
return '';
}
} catch(e) {
Roo.log("Xtemplate.applySubTemplate 'test': Exception thrown");
Roo.log(e.toString());
Roo.log(t.test);
return ''
}
try {
if(t.exec && t.exec.call(this, values, parent)){
return '';
}
} catch(e) {
Roo.log("Xtemplate.applySubTemplate 'exec': Exception thrown");
Roo.log(e.toString());
Roo.log(t.exec);
return ''
}
try {
var vs = t.target ? t.target.call(this, values, parent) : values;
parent = t.target ? values : parent;
if(t.target && vs instanceof Array){
var buf = [];
for(var i = 0, len = vs.length; i < len; i++){
buf[buf.length] = t.compiled.call(this, vs[i], parent);
}
return buf.join('');
}
return t.compiled.call(this, vs, parent);
} catch (e) {
Roo.log("Xtemplate.applySubTemplate : Exception thrown");
Roo.log(e.toString());
Roo.log(t.compiled);
return '';
}
},
compileTpl : function(tpl)
{
var fm = Roo.util.Format;
var useF = this.disableFormats !== true;
var sep = Roo.isGecko ? "+" : ",";
var undef = function(str) {
Roo.log("Property not found :" + str);
return '';
};
var fn = function(m, name, format, args)
{
//Roo.log(arguments);
args = args ? args.replace(/\\'/g,"'") : args;
//["{TEST:(a,b,c)}", "TEST", "", "a,b,c", 0, "{TEST:(a,b,c)}"]
if (typeof(format) == 'undefined') {
format= 'htmlEncode';
}
if (format == 'raw' ) {
format = false;
}
if(name.substr(0, 4) == 'xtpl'){
return "'"+ sep +'this.applySubTemplate('+name.substr(4)+', values, parent)'+sep+"'";
}
// build an array of options to determine if value is undefined..
// basically get 'xxxx.yyyy' then do
// (typeof(xxxx) == 'undefined' || typeof(xxx.yyyy) == 'undefined') ?
// (function () { Roo.log("Property not found"); return ''; })() :
// ......
var udef_ar = [];
var lookfor = '';
Roo.each(name.split('.'), function(st) {
lookfor += (lookfor.length ? '.': '') + st;
udef_ar.push( "(typeof(" + lookfor + ") == 'undefined')" );
});
var udef_st = '((' + udef_ar.join(" || ") +") ? undef('" + name + "') : "; // .. needs )
if(format && useF){
args = args ? ',' + args : "";
if(format.substr(0, 5) != "this."){
format = "fm." + format + '(';
}else{
format = 'this.call("'+ format.substr(5) + '", ';
args = ", values";
}
return "'"+ sep + udef_st + format + name + args + "))"+sep+"'";
}
if (args.length) {
// called with xxyx.yuu:(test,test)
// change to ()
return "'"+ sep + udef_st + name + '(' + args + "))"+sep+"'";
}
// raw.. - :raw modifier..
return "'"+ sep + udef_st + name + ")"+sep+"'";
};
var body;
// branched to use + in gecko and [].join() in others
if(Roo.isGecko){
body = "tpl.compiled = function(values, parent){ with(values) { return '" +
tpl.body.replace(/(\r\n|\n)/g, '\\n').replace(/'/g, "\\'").replace(this.re, fn) +
"';};};";
}else{
body = ["tpl.compiled = function(values, parent){ with (values) { return ['"];
body.push(tpl.body.replace(/(\r\n|\n)/g,
'\\n').replace(/'/g, "\\'").replace(this.re, fn));
body.push("'].join('');};};");
body = body.join('');
}
Roo.debug && Roo.log(body.replace(/\\n/,'\n'));
/** eval:var:tpl eval:var:fm eval:var:useF eval:var:undef */
eval(body);
return this;
},
applyTemplate : function(values){
return this.master.compiled.call(this, values, {});
//var s = this.subs;
},
apply : function(){
return this.applyTemplate.apply(this, arguments);
}
});
Roo.XTemplate.from = function(el){
el = Roo.getDom(el);
return new Roo.XTemplate(el.value || el.innerHTML);
};