+/*
+ * Based on:
+ * Roo JS
+ * (c)) Alan Knowles
+ * Licence : LGPL
+ */
+
+
+/**
+ * @class Roo.DomTemplate
+ * @extends Roo.Template
+ * An effort at a dom based template engine..
+ *
+ * Similar to XTemplate, except it uses dom parsing to create the template..
+ *
+ * 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>
+ <div roo-for="a_variable or condition.."></div>
+ <div roo-if="a_variable or condition"></div>
+ <div roo-exec="some javascript"></div>
+ <div roo-name="named_template"></div>
+
+</code></pre>
+ *
+ */
+Roo.DomTemplate = function()
+{
+ Roo.DomTemplate.superclass.constructor.apply(this, arguments);
+ if (this.html) {
+ this.compile();
+ }
+};
+
+
+Roo.extend(Roo.DomTemplate, Roo.Template, {
+ /**
+ * id counter for sub templates.
+ */
+ id : 0,
+ /**
+ * flag to indicate if dom parser is inside a pre,
+ * it will strip whitespace if not.
+ */
+ inPre : false,
+
+ /**
+ * 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 : /(\{|\%7B)([\w-\.]+)(?:\:([\w\.]*)(?:\(([^)]*?)?\))?)?(\}|\%7D)/g,
+ //re : /\{([\w-\.]+)(?:\:([\w\.]*)(?:\((.*?)?\))?)?\}/g,
+
+ iterChild : function (node, method) {
+
+ var oldPre = this.inPre;
+ if (node.tagName == 'PRE') {
+ this.inPre = true;
+ }
+ for( var i = 0; i < node.childNodes.length; i++) {
+ method.call(this, node.childNodes[i]);
+ }
+ this.inPre = oldPre;
+ },
+
+
+
+ /**
+ * 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;
+
+ // covert the html into DOM...
+ var doc = false;
+ var div =false;
+ try {
+ doc = document.implementation.createHTMLDocument("");
+ doc.documentElement.innerHTML = this.html ;
+ div = doc.documentElement;
+ } catch (e) {
+ // old IE... - nasty -- it causes all sorts of issues.. with
+ // images getting pulled from server..
+ div = document.createElement('div');
+ div.innerHTML = this.html;
+ }
+ //doc.documentElement.innerHTML = htmlBody
+
+
+
+ this.tpls = [];
+ var _t = this;
+ this.iterChild(div, function(n) {_t.compileNode(n, true); });
+
+ var tpls = this.tpls;
+
+ // create a top level template from the snippet..
+
+ //Roo.log(div.innerHTML);
+
+ var tpl = {
+ uid : 'master',
+ id : this.id++,
+ attr : false,
+ value : false,
+ body : div.innerHTML,
+
+ forCall : false,
+ execCall : false,
+ dom : div,
+ isTop : true
+
+ };
+ tpls.unshift(tpl);
+
+
+ // compile them...
+ this.tpls = [];
+ Roo.each(tpls, function(tp){
+ this.compileTpl(tp);
+ this.tpls[tp.id] = tp;
+ }, this);
+
+ this.master = tpls[0];
+ return this;
+
+
+ },
+
+ compileNode : function(node, istop) {
+ // test for
+ //Roo.log(node);
+
+
+ // skip anything not a tag..
+ if (node.nodeType != 1) {
+ if (node.nodeType == 3 && !this.inPre) {
+ // reduce white space..
+ node.nodeValue = node.nodeValue.replace(/\s+/g, ' ');
+
+ }
+ return;
+ }
+
+ var tpl = {
+ uid : false,
+ id : false,
+ attr : false,
+ value : false,
+ body : '',
+
+ forCall : false,
+ execCall : false,
+ dom : false,
+ isTop : istop
+
+
+ };
+
+
+ switch(true) {
+ case (node.hasAttribute('roo-for')): tpl.attr = 'for'; break;
+ case (node.hasAttribute('roo-if')): tpl.attr = 'if'; break;
+ case (node.hasAttribute('roo-name')): tpl.attr = 'name'; break;
+ case (node.hasAttribute('roo-exec')): tpl.attr = 'exec'; break;
+ // no default..
+ }
+
+
+ if (!tpl.attr) {
+ // just itterate children..
+ this.iterChild(node,this.compileNode);
+ return;
+ }
+ tpl.uid = this.id++;
+ tpl.value = node.getAttribute('roo-' + tpl.attr);
+ node.removeAttribute('roo-'+ tpl.attr);
+ if (tpl.attr != 'name') {
+ var placeholder = document.createTextNode('{domtpl' + tpl.uid + '}');
+ node.parentNode.replaceChild(placeholder, node);
+ } else {
+
+ var placeholder = document.createElement('span');
+ placeholder.className = 'roo-tpl-' + tpl.value;
+ node.parentNode.replaceChild(placeholder, node);
+ }
+
+ // parent now sees '{domtplXXXX}
+ this.iterChild(node,this.compileNode);
+
+ // we should now have node body...
+ var div = document.createElement('div');
+ div.appendChild(node);
+ tpl.dom = node;
+ // this has the unfortunate side effect of converting tagged attributes
+ // eg. href="{...}" into %7C...%7D
+ // this has been fixed by searching for those combo's although it's a bit hacky..
+
+
+ tpl.body = div.innerHTML;
+
+
+
+ tpl.id = tpl.uid;
+ switch(tpl.attr) {
+ case 'for' :
+ switch (tpl.value) {
+ case '.': tpl.forCall = new Function('values', 'parent', 'with(values){ return values; }'); break;
+ case '..': tpl.forCall= new Function('values', 'parent', 'with(values){ return parent; }'); break;
+ default: tpl.forCall= new Function('values', 'parent', 'with(values){ return '+tpl.value+'; }');
+ }
+ break;
+
+ case 'exec':
+ tpl.execCall = new Function('values', 'parent', 'with(values){ '+(Roo.util.Format.htmlDecode(tpl.value))+'; }');
+ break;
+
+ case 'if':
+ tpl.ifCall = new Function('values', 'parent', 'with(values){ return '+(Roo.util.Format.htmlDecode(tpl.value))+'; }');
+ break;
+
+ case 'name':
+ tpl.id = tpl.value; // replace non characters???
+ break;
+
+ }
+
+
+ this.tpls.push(tpl);
+
+
+
+ },
+
+
+
+
+ /**
+ * Compile a segment of the template into a 'sub-template'
+ *
+ *
+ *
+ *
+ */
+ compileTpl : function(tpl)
+ {
+ var fm = Roo.util.Format;
+ var useF = this.disableFormats !== true;
+
+ var sep = Roo.isGecko ? "+\n" : ",\n";
+
+ var undef = function(str) {
+ Roo.debug && Roo.log("Property not found :" + str);
+ return '';
+ };
+
+ //Roo.log(tpl.body);
+
+
+
+ var fn = function(m, lbrace, name, format, args)
+ {
+ //Roo.log("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, 6) == 'domtpl'){
+ return "'"+ sep +'this.applySubTemplate('+name.substr(6)+', 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 && 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;
+ },
+
+ /**
+ * 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.ifCall && !t.ifCall.call(this, values, parent)){
+ Roo.debug && Roo.log('if call on ' + t.value + ' return false');
+ return '';
+ }
+ } catch(e) {
+ Roo.log('Xtemplate.applySubTemplate('+ id+ '): Exception thrown on roo-if="' + t.value + '" - ' + e.toString());
+ Roo.log(values);
+
+ return '';
+ }
+ try {
+
+ if(t.execCall && t.execCall.call(this, values, parent)){
+ return '';
+ }
+ } catch(e) {
+ Roo.log('Xtemplate.applySubTemplate('+ id+ '): Exception thrown on roo-for="' + t.value + '" - ' + e.toString());
+ Roo.log(values);
+ return '';
+ }
+
+ try {
+ var vs = t.forCall ? t.forCall.call(this, values, parent) : values;
+ parent = t.target ? values : parent;
+ if(t.forCall && vs instanceof Array){
+ var buf = [];
+ for(var i = 0, len = vs.length; i < len; i++){
+ try {
+ buf[buf.length] = t.compiled.call(this, vs[i], parent);
+ } catch (e) {
+ Roo.log('Xtemplate.applySubTemplate('+ id+ '): Exception thrown on body="' + t.value + '" - ' + e.toString());
+ Roo.log(e.body);
+ //Roo.log(t.compiled);
+ Roo.log(vs[i]);
+ }
+ }
+ return buf.join('');
+ }
+ } catch (e) {
+ Roo.log('Xtemplate.applySubTemplate('+ id+ '): Exception thrown on roo-for="' + t.value + '" - ' + e.toString());
+ Roo.log(values);
+ return '';
+ }
+ try {
+ return t.compiled.call(this, vs, parent);
+ } catch (e) {
+ Roo.log('Xtemplate.applySubTemplate('+ id+ '): Exception thrown on body="' + t.value + '" - ' + e.toString());
+ Roo.log(e.body);
+ //Roo.log(t.compiled);
+ Roo.log(values);
+ return '';
+ }
+ },
+
+
+
+ applyTemplate : function(values){
+ return this.master.compiled.call(this, values, {});
+ //var s = this.subs;
+ },
+
+ apply : function(){
+ return this.applyTemplate.apply(this, arguments);
+ }
+
+ });
+
+Roo.DomTemplate.from = function(el){
+ el = Roo.getDom(el);
+ return new Roo.Domtemplate(el.value || el.innerHTML);
+};
\ No newline at end of file
projects / roojs1 / blobdiff