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implement optional filtering in hyperjson

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Implemented via callback, return falsey if you want to filter an element
and all of its children from the serialized result.
This commit is contained in:
ansuz 2016-03-24 12:11:31 +01:00
parent 1bd5cb9e27
commit 0d33af773f
2 changed files with 14 additions and 5 deletions
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4
www/common/convert.js
View File

@ -5,7 +5,7 @@ define([
], function (vdom, hyperjson, hyperscript) { ], function (vdom, hyperjson, hyperscript) {
// complain if you don't find the required APIs // complain if you don't find the required APIs
if (!(vdom && hyperjson && hyperscript)) { throw new Error(); } if (!(vdom && hyperjson && hyperscript)) { throw new Error(); }
// Generate a matrix of conversions // Generate a matrix of conversions
/* /*
convert.dom.to.hjson, convert.hjson.to.dom, convert.dom.to.hjson, convert.hjson.to.dom,
@ -46,7 +46,7 @@ define([
return hyperjson.fromDOM(vdom.create(V)); return hyperjson.fromDOM(vdom.create(V));
} }
} }
}, },
convert = {}; convert = {};
Object.keys(methods).forEach(function (method) { Object.keys(methods).forEach(function (method) {
convert[method] = { to: methods[method] }; convert[method] = { to: methods[method] };

15
www/common/hyperjson.js
View File

@ -47,13 +47,20 @@ define([], function () {
return x; return x;
}; };
var DOM2HyperJSON = function(el){ var DOM2HyperJSON = function(el, predicate){
if(!el.tagName && el.nodeType === Node.TEXT_NODE){ if(!el.tagName && el.nodeType === Node.TEXT_NODE){
return el.textContent; return el.textContent;
} }
if(!el.attributes){ if(!el.attributes){
return; return;
} }
if (predicate) {
if (!predicate(el)) {
// shortcircuit
return;
}
}
var attributes = {}; var attributes = {};
var i = 0; var i = 0;
@ -102,10 +109,12 @@ define([], function () {
// js hint complains if we use 'var' here // js hint complains if we use 'var' here
i = 0; i = 0;
for(; i < el.childNodes.length; i++){ for(; i < el.childNodes.length; i++){
children.push(DOM2HyperJSON(el.childNodes[i])); children.push(DOM2HyperJSON(el.childNodes[i], predicate));
} }
result.push(children);
result.push(children.filter(isTruthy));
return result; return result;
}; };