move new hyperjson into common

pull/1/head
ansuz 9 years ago
parent 103bb69daa
commit 3598c93098

@ -1,125 +0,0 @@
define([], function () {
// this makes recursing a lot simpler
var isArray = function (A) {
return Object.prototype.toString.call(A)==='[object Array]';
};
var parseStyle = function(el){
var style = el.style;
var output = {};
for (var i = 0; i < style.length; ++i) {
var item = style.item(i);
output[item] = style[item];
}
return output;
};
var callOnHyperJSON = function (hj, cb) {
var children;
if (hj && hj[2]) {
children = hj[2].map(function (child) {
if (isArray(child)) {
// if the child is an array, recurse
return callOnHyperJSON(child, cb);
} else if (typeof (child) === 'string') {
// string nodes have leading and trailing quotes
// don't strip them!
return child; //child.replace(/(^"|"$)/g,"");
} else {
// the above branches should cover all methods
// if we hit this, there is a problem
throw new Error();
}
});
} else {
children = [];
}
// this should return the top level element of your new DOM
return cb(hj[0], hj[1], children);
};
var classify = function (token) {
return '.' + token.trim();
};
var isValidClass = function (x) {
if (x && /\S/.test(x)) {
return true;
}
};
var isTruthy = function (x) {
return x;
};
var DOM2HyperJSON = function(el, predicate, filter){
if(!el.tagName && el.nodeType === Node.TEXT_NODE){
return el.textContent;
}
if(!el.attributes){
return;
}
if (predicate) {
if (!predicate(el)) {
// shortcircuit
return;
}
}
var attributes = {};
var i = 0;
for(;i < el.attributes.length; i++){
var attr = el.attributes[i];
if(attr.name && attr.value){
if(attr.name === "style"){
attributes.style = parseStyle(el);
}
else{
attributes[attr.name] = attr.value;
}
}
}
// this should never be longer than three elements
var result = [];
// get the element type, id, and classes of the element
// and push them to the result array
var sel = el.tagName;
if(attributes.id){
// we don't have to do much to validate IDs because the browser
// will only permit one id to exist
// unless we come across a strange browser in the wild
sel = sel +'#'+ attributes.id;
delete attributes.id;
}
result.push(sel);
// second element of the array is the element attributes
result.push(attributes);
// third element of the array is an array of child nodes
var children = [];
// js hint complains if we use 'var' here
i = 0;
for(; i < el.childNodes.length; i++){
children.push(DOM2HyperJSON(el.childNodes[i], predicate, filter));
}
result.push(children.filter(isTruthy));
if (filter) {
return filter(result);
} else {
return result;
}
};
return {
fromDOM: DOM2HyperJSON,
callOn: callOnHyperJSON
};
});

@ -24,7 +24,8 @@ define([], function () {
return callOnHyperJSON(child, cb);
} else if (typeof (child) === 'string') {
// string nodes have leading and trailing quotes
return child.replace(/(^"|"$)/g,"");
// don't strip them!
return child; //child.replace(/(^"|"$)/g,"");
} else {
// the above branches should cover all methods
// if we hit this, there is a problem
@ -95,21 +96,6 @@ define([], function () {
sel = sel +'#'+ attributes.id;
delete attributes.id;
}
if(attributes.class){
// actually parse out classes so that we produce a valid selector
// string. leading or trailing spaces would have caused it to choke
// these are really common in generated html
/* TODO this can be done with RegExps alone, and it will be faster
but this works and is a little less error prone, albeit slower
come back and speed it up when it comes time to optimize */
sel = sel + attributes.class
.split(/\s+/g)
.filter(isValidClass)
.map(classify)
.join('')
.replace(/\.\./g, '.');
delete attributes.class;
}
result.push(sel);
// second element of the array is the element attributes

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