Elbert Alias
8 years ago
parent
6439bad292
commit
d882aca41d
@ -0,0 +1,63 @@
|
||||
jsonToDOM.namespaces = {
|
||||
html: "http://www.w3.org/1999/xhtml",
|
||||
xul: "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
|
||||
};
|
||||
|
||||
jsonToDOM.defaultNamespace = jsonToDOM.namespaces.html;
|
||||
|
||||
function jsonToDOM(jsonTemplate, doc, nodes) {
|
||||
function namespace(name) {
|
||||
var reElemNameParts = /^(?:(.*):)?(.*)$/.exec(name);
|
||||
return { namespace: jsonToDOM.namespaces[reElemNameParts[1]], shortName: reElemNameParts[2] };
|
||||
}
|
||||
|
||||
// Note that 'elemNameOrArray' is: either the full element name (eg. [html:]div) or an array of elements in JSON notation
|
||||
function tag(elemNameOrArray, elemAttr) {
|
||||
// Array of elements? Parse each one...
|
||||
if (Array.isArray(elemNameOrArray)) {
|
||||
var frag = doc.createDocumentFragment();
|
||||
Array.forEach(arguments, function(thisElem) {
|
||||
frag.appendChild(tag.apply(null, thisElem));
|
||||
});
|
||||
return frag;
|
||||
}
|
||||
|
||||
// Single element? Parse element namespace prefix (if none exists, default to defaultNamespace), and create element
|
||||
var elemNs = namespace(elemNameOrArray);
|
||||
var elem = doc.createElementNS(elemNs.namespace || jsonToDOM.defaultNamespace, elemNs.shortName);
|
||||
|
||||
// Set element's attributes and/or callback functions (eg. onclick)
|
||||
for (var key in elemAttr) {
|
||||
var val = elemAttr[key];
|
||||
if (nodes && key == "key") {
|
||||
nodes[val] = elem;
|
||||
continue;
|
||||
}
|
||||
|
||||
var attrNs = namespace(key);
|
||||
if (typeof val == "function") {
|
||||
// Special case for function attributes; don't just add them as 'on...' attributes, but as events, using addEventListener
|
||||
elem.addEventListener(key.replace(/^on/, ""), val, false);
|
||||
}
|
||||
else {
|
||||
// Note that the default namespace for XML attributes is, and should be, blank (ie. they're not in any namespace)
|
||||
elem.setAttributeNS(attrNs.namespace || "", attrNs.shortName, val);
|
||||
}
|
||||
}
|
||||
|
||||
// Create and append this element's children
|
||||
var childElems = Array.slice(arguments, 2);
|
||||
childElems.forEach(function(childElem) {
|
||||
if (childElem != null) {
|
||||
elem.appendChild(
|
||||
childElem instanceof doc.defaultView.Node ? childElem :
|
||||
Array.isArray(childElem) ? tag.apply(null, childElem) :
|
||||
doc.createTextNode(childElem));
|
||||
}
|
||||
});
|
||||
|
||||
return elem;
|
||||
}
|
||||
|
||||
return tag.apply(null, jsonTemplate);
|
||||
}
|
||||
Reference in new issue