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loader.js
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loader.js
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if(!dojo._hasResource["dojox.dtl.tag.loader"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.dtl.tag.loader"] = true;
dojo.provide("dojox.dtl.tag.loader");
dojo.require("dojox.dtl._base");
dojox.dtl.tag.loader.BlockNode = function(name, nodelist){
this.name = name;
this.nodelist = nodelist; // Can be overridden
}
dojo.extend(dojox.dtl.tag.loader.BlockNode, {
render: function(context, buffer){
if(this.override){
buffer = this.override.render(context, buffer, this);
this.rendered = this.override;
}else{
buffer = this.nodelist.render(context, buffer, this);
this.rendered = this.nodelist;
}
this.override = null;
return buffer;
},
unrender: function(context, buffer){
return this.rendered.unrender(context, buffer);
},
setOverride: function(nodelist){
// summary: In a shared parent, we override, not overwrite
if(!this.override){
this.override = nodelist;
}
},
toString: function(){ return "dojox.dtl.tag.loader.BlockNode"; }
});
dojox.dtl.tag.loader.block = function(parser, text){
var parts = text.split(" ");
var name = parts[1];
parser._blocks = parser._blocks || {};
parser._blocks[name] = parser._blocks[name] || [];
parser._blocks[name].push(name);
var nodelist = parser.parse(["endblock", "endblock " + name]);
parser.next();
return new dojox.dtl.tag.loader.BlockNode(name, nodelist);
}
dojox.dtl.tag.loader.ExtendsNode = function(getTemplate, nodelist, shared, parent, key){
this.getTemplate = getTemplate;
this.nodelist = nodelist;
this.shared = shared;
this.parent = parent;
this.key = key;
}
dojo.extend(dojox.dtl.tag.loader.ExtendsNode, {
parents: {},
getParent: function(context){
if(!this.parent){
this.parent = context.get(this.key, false);
if(!this.parent){
throw new Error("extends tag used a variable that did not resolve");
}
if(typeof this.parent == "object"){
if(this.parent.url){
if(this.parent.shared){
this.shared = true;
}
this.parent = this.parent.url.toString();
}else{
this.parent = this.parent.toString();
}
}
if(this.parent && this.parent.indexOf("shared:") == 0){
this.shared = true;
this.parent = this.parent.substring(7, parent.length);
}
}
var parent = this.parent;
if(!parent){
throw new Error("Invalid template name in 'extends' tag.");
}
if(parent.render){
return parent;
}
if(this.parents[parent]){
return this.parents[parent];
}
this.parent = this.getTemplate(dojox.dtl.text.getTemplateString(parent));
if(this.shared){
this.parents[parent] = this.parent;
}
return this.parent;
},
render: function(context, buffer){
var st = dojox.dtl;
var stbl = dojox.dtl.tag.loader;
var parent = this.getParent(context);
var isChild = parent.nodelist[0] instanceof this.constructor;
var parentBlocks = {};
for(var i = 0, node; node = parent.nodelist.contents[i]; i++){
if(node instanceof stbl.BlockNode){
parentBlocks[node.name] = node;
}
}
for(var i = 0, node; node = this.nodelist.contents[i]; i++){
if(node instanceof stbl.BlockNode){
var block = parentBlocks[node.name];
if(!block){
if(isChild){
parent.nodelist[0].nodelist.append(node);
}
}else{
if(this.shared){
block.setOverride(node.nodelist);
}else{
block.nodelist = node.nodelist;
}
}
}
}
this.rendered = parent;
return parent.render(context, buffer, this);
},
unrender: function(context, buffer){
return this.rendered.unrender(context, buffer, this);
},
toString: function(){ return "dojox.dtl.block.ExtendsNode"; }
});
dojox.dtl.tag.loader.extends_ = function(parser, text){
var parts = text.split(" ");
var shared = false;
var parent = null;
var key = null;
if(parts[1].charAt(0) == '"' || parts[1].charAt(0) == "'"){
parent = parts[1].substring(1, parts[1].length - 1);
}else{
key = parts[1];
}
if(parent && parent.indexOf("shared:") == 0){
shared = true;
parent = parent.substring(7, parent.length);
}
var nodelist = parser.parse();
return new dojox.dtl.tag.loader.ExtendsNode(parser.getTemplate, nodelist, shared, parent, key);
}
}

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