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multi-template file and renderResponse support #40

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multi-template file and renderResponse support #40

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84 changes: 84 additions & 0 deletions lib/api.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,3 +28,87 @@ SSR.compileTemplate = function(name, content, options) {

return Template[name] = eval(template);
};

SSR.headSections = {};

SSR.loadTemplates = function(txt){
// find template sections with name and inner text section in the template text
var myRegexp = /\<template\s+name\s*=\s*['"](\S+)['"]\s*\>([\s\S]*?)\<\/template\s*>/g;
var match = myRegexp.exec(txt);

while (match != null) {
try{
// for all the matches - compile the name(1) to text(2) using SSR
// console.log('compiling '+match[1]);
SSR.compileTemplate(match[1], match[2]);
}catch(e){
console.log('failed to compile template '+match[1] +' error:'+e);
}

// save this data in template

SSR.headSections[match[1]] = match[2];

// get next match
match = myRegexp.exec(txt);
}
};

SSR.renderResponse = function (template, data, response, meta){
// render the template itself using SSR
var res = SSR.render(template, data);

var output = "<!DOCTYPE html><html><head>";

// append a common head template - if present
if(SSR.headSections["head"])
output += SSR.headSections["head"];

// if template specific head is present - append that
if(SSR.headSections[template+"-head"])
output += SSR.headSections[template+"-head"];

// output += "<meta name='viewport' content='width=device-width, initial-scale=1'><meta charset='utf-8'>";

var contentType = "text/html";
// if meta has been defined in code - append it to the head
if(meta){
var keys = Object.keys(meta);
for(var k in keys){
var key = keys[k];
var val = meta[key];
if(key === "title")
output= output + "<title>"+val+"</title>";
else{
if(val === "css")
output +="<link rel='stylesheet' href='"+key+"'>";
else{
if(val == "script")
output += "<script src='"+key+"'></script>"
else{
if(val == "content-type")
contentType = key;
else
output += "<meta name='"+key+"' content='"+val+"'>";
}
}
}
}
}

// append result
output += "</head><body>"+res+"</body></html>";

//in dev mode - disable caching of responses
if(process.env.NODE_ENV === "development"){
response.setHeader('cache-control', 'no-cache');
response.setHeader('expires', '0');
response.setHeader('charset', 'utf-8');
}

// write out the whole result
response.writeHead(200, {'Content-Type': contentType});
response.write(output);
response.end();
}