alpaca
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Alpaca provides the easiest and fastest way to generate interactive forms for the web and mobile devices. It runs simply as HTML5 or more elaborately using Bootstrap, jQuery Mobile or jQuery UI. Alpaca uses Handlebars to process JSON schema and provide
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JavaScript
/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */
/*! NOTE: If you're already including a window.matchMedia polyfill via Modernizr or otherwise, you don't need this part */
(function(w) {
"use strict";
w.matchMedia = w.matchMedia || function(doc, undefined) {
var bool, docElem = doc.documentElement, refNode = docElem.firstElementChild || docElem.firstChild, fakeBody = doc.createElement("body"), div = doc.createElement("div");
div.id = "mq-test-1";
div.style.cssText = "position:absolute;top:-100em";
fakeBody.style.background = "none";
fakeBody.appendChild(div);
return function(q) {
div.innerHTML = '­<style media="' + q + '"> #mq-test-1 { width: 42px; }</style>';
docElem.insertBefore(fakeBody, refNode);
bool = div.offsetWidth === 42;
docElem.removeChild(fakeBody);
return {
matches: bool,
media: q
};
};
}(w.document);
})(this);
/*! Respond.js v1.4.0: min/max-width media query polyfill. (c) Scott Jehl. MIT Lic. j.mp/respondjs */
(function(w) {
"use strict";
var respond = {};
w.respond = respond;
respond.update = function() {};
var requestQueue = [], xmlHttp = function() {
var xmlhttpmethod = false;
try {
xmlhttpmethod = new w.XMLHttpRequest();
} catch (e) {
xmlhttpmethod = new w.ActiveXObject("Microsoft.XMLHTTP");
}
return function() {
return xmlhttpmethod;
};
}(), ajax = function(url, callback) {
var req = xmlHttp();
if (!req) {
return;
}
req.open("GET", url, true);
req.onreadystatechange = function() {
if (req.readyState !== 4 || req.status !== 200 && req.status !== 304) {
return;
}
callback(req.responseText);
};
if (req.readyState === 4) {
return;
}
req.send(null);
};
respond.ajax = ajax;
respond.queue = requestQueue;
respond.regex = {
media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi,
keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi,
urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g,
findStyles: /@media *([^\{]+)\{([\S\s]+?)$/,
only: /(only\s+)?([a-zA-Z]+)\s?/,
minw: /\([\s]*min\-width\s*:[\s]*([\s]*[0-9\.]+)(px|em)[\s]*\)/,
maxw: /\([\s]*max\-width\s*:[\s]*([\s]*[0-9\.]+)(px|em)[\s]*\)/
};
respond.mediaQueriesSupported = w.matchMedia && w.matchMedia("only all") !== null && w.matchMedia("only all").matches;
if (respond.mediaQueriesSupported) {
return;
}
var doc = w.document, docElem = doc.documentElement, mediastyles = [], rules = [], appendedEls = [], parsedSheets = {}, resizeThrottle = 30, head = doc.getElementsByTagName("head")[0] || docElem, base = doc.getElementsByTagName("base")[0], links = head.getElementsByTagName("link"), lastCall, resizeDefer, eminpx, getEmValue = function() {
var ret, div = doc.createElement("div"), body = doc.body, originalHTMLFontSize = docElem.style.fontSize, originalBodyFontSize = body && body.style.fontSize, fakeUsed = false;
div.style.cssText = "position:absolute;font-size:1em;width:1em";
if (!body) {
body = fakeUsed = doc.createElement("body");
body.style.background = "none";
}
docElem.style.fontSize = "100%";
body.style.fontSize = "100%";
body.appendChild(div);
if (fakeUsed) {
docElem.insertBefore(body, docElem.firstChild);
}
ret = div.offsetWidth;
if (fakeUsed) {
docElem.removeChild(body);
} else {
body.removeChild(div);
}
docElem.style.fontSize = originalHTMLFontSize;
if (originalBodyFontSize) {
body.style.fontSize = originalBodyFontSize;
}
ret = eminpx = parseFloat(ret);
return ret;
}, applyMedia = function(fromResize) {
var name = "clientWidth", docElemProp = docElem[name], currWidth = doc.compatMode === "CSS1Compat" && docElemProp || doc.body[name] || docElemProp, styleBlocks = {}, lastLink = links[links.length - 1], now = new Date().getTime();
if (fromResize && lastCall && now - lastCall < resizeThrottle) {
w.clearTimeout(resizeDefer);
resizeDefer = w.setTimeout(applyMedia, resizeThrottle);
return;
} else {
lastCall = now;
}
for (var i in mediastyles) {
if (mediastyles.hasOwnProperty(i)) {
var thisstyle = mediastyles[i], min = thisstyle.minw, max = thisstyle.maxw, minnull = min === null, maxnull = max === null, em = "em";
if (!!min) {
min = parseFloat(min) * (min.indexOf(em) > -1 ? eminpx || getEmValue() : 1);
}
if (!!max) {
max = parseFloat(max) * (max.indexOf(em) > -1 ? eminpx || getEmValue() : 1);
}
if (!thisstyle.hasquery || (!minnull || !maxnull) && (minnull || currWidth >= min) && (maxnull || currWidth <= max)) {
if (!styleBlocks[thisstyle.media]) {
styleBlocks[thisstyle.media] = [];
}
styleBlocks[thisstyle.media].push(rules[thisstyle.rules]);
}
}
}
for (var j in appendedEls) {
if (appendedEls.hasOwnProperty(j)) {
if (appendedEls[j] && appendedEls[j].parentNode === head) {
head.removeChild(appendedEls[j]);
}
}
}
appendedEls.length = 0;
for (var k in styleBlocks) {
if (styleBlocks.hasOwnProperty(k)) {
var ss = doc.createElement("style"), css = styleBlocks[k].join("\n");
ss.type = "text/css";
ss.media = k;
head.insertBefore(ss, lastLink.nextSibling);
if (ss.styleSheet) {
ss.styleSheet.cssText = css;
} else {
ss.appendChild(doc.createTextNode(css));
}
appendedEls.push(ss);
}
}
}, translate = function(styles, href, media) {
var qs = styles.replace(respond.regex.keyframes, "").match(respond.regex.media), ql = qs && qs.length || 0;
href = href.substring(0, href.lastIndexOf("/"));
var repUrls = function(css) {
return css.replace(respond.regex.urls, "$1" + href + "$2$3");
}, useMedia = !ql && media;
if (href.length) {
href += "/";
}
if (useMedia) {
ql = 1;
}
for (var i = 0; i < ql; i++) {
var fullq, thisq, eachq, eql;
if (useMedia) {
fullq = media;
rules.push(repUrls(styles));
} else {
fullq = qs[i].match(respond.regex.findStyles) && RegExp.$1;
rules.push(RegExp.$2 && repUrls(RegExp.$2));
}
eachq = fullq.split(",");
eql = eachq.length;
for (var j = 0; j < eql; j++) {
thisq = eachq[j];
mediastyles.push({
media: thisq.split("(")[0].match(respond.regex.only) && RegExp.$2 || "all",
rules: rules.length - 1,
hasquery: thisq.indexOf("(") > -1,
minw: thisq.match(respond.regex.minw) && parseFloat(RegExp.$1) + (RegExp.$2 || ""),
maxw: thisq.match(respond.regex.maxw) && parseFloat(RegExp.$1) + (RegExp.$2 || "")
});
}
}
applyMedia();
}, makeRequests = function() {
if (requestQueue.length) {
var thisRequest = requestQueue.shift();
ajax(thisRequest.href, function(styles) {
translate(styles, thisRequest.href, thisRequest.media);
parsedSheets[thisRequest.href] = true;
w.setTimeout(function() {
makeRequests();
}, 0);
});
}
}, ripCSS = function() {
for (var i = 0; i < links.length; i++) {
var sheet = links[i], href = sheet.href, media = sheet.media, isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet";
if (!!href && isCSS && !parsedSheets[href]) {
if (sheet.styleSheet && sheet.styleSheet.rawCssText) {
translate(sheet.styleSheet.rawCssText, href, media);
parsedSheets[href] = true;
} else {
if (!/^([a-zA-Z:]*\/\/)/.test(href) && !base || href.replace(RegExp.$1, "").split("/")[0] === w.location.host) {
if (href.substring(0, 2) === "//") {
href = w.location.protocol + href;
}
requestQueue.push({
href: href,
media: media
});
}
}
}
}
makeRequests();
};
ripCSS();
respond.update = ripCSS;
respond.getEmValue = getEmValue;
function callMedia() {
applyMedia(true);
}
if (w.addEventListener) {
w.addEventListener("resize", callMedia, false);
} else if (w.attachEvent) {
w.attachEvent("onresize", callMedia);
}
})(this);