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// Upper-case because we compare them to DOM nodeName
let text_nodes = {'ADDRESS': true, 'ARTICLE': true, 'ASIDE': true, 'AUDIO': true, 'BLOCKQUOTE': true, 'BODY': true, 'CANVAS': true, 'DD': true, 'DIV': true, 'DL': true, 'FIELDSET': true, 'FIGCAPTION': true, 'FIGURE': true, 'FOOTER': true, 'FORM': true, 'H1': true, 'H2': true, 'H3': true, 'H4': true, 'H5': true, 'H6': true, 'HEADER': true, 'HGROUP': true, 'HTML': true, 'HR': true, 'LI': true, 'MAIN': true, 'NAV': true, 'NOSCRIPT': true, 'OL': true, 'OUTPUT': true, 'P': true, 'PRE': true, 'SECTION': true, 'TABLE': true, 'TD': true, 'TH': true, 'UL': true, 'VIDEO': true};
function findTextNodes(nodes, filter) {
let tns = [], wsx = /\S/;
if (!$.isArray(nodes)) {
nodes = [nodes];
}
function _findTextNodes(node) {
if (node.nodeType == 3) {
if (wsx.test(node.nodeValue)) {
tns.push(node);
}
}
else {
for (let i=0 ; i < node.childNodes.length ; ++i) {
if (typeof filter !== 'function' || filter(node.childNodes[i])) {
_findTextNodes(node.childNodes[i]);
}
}
}
}
for (let i=0 ; i<nodes.length ; ++i) {
if (typeof filter !== 'function' || filter(nodes[i])) {
_findTextNodes(nodes[i]);
}
}
return tns;
}
/////////////////
let tns = findTextNodes(dom.body);
let ns = [];
for (let i=0 ; i<tns.length ; ++i) {
let n = tns[i];
do {
n = n.parentNode;
} while(n && n.parentNode && !text_nodes.hasOwnProperty(n.nodeName));
// Only add unseen parent nodes
if (ns.indexOf(n) === -1) {
ns.push(n);
}
}
// Deduplicate found parent nodes, and mark the unique ones for tracking
let elms = [];
for (let i=0 ; i<ns.length ; ++i) {
let p = ns[i];
do {
p = p.parentNode;
if (ns.indexOf(p) !== -1) {
console.log(['Skipping node with a parent already in the set', ns[i]]);
ns[i] = null;
break;
}
} while (p && p.parentNode);
if (ns[i]) {
ns[i].setAttribute('data-gs-id', elms.length+1);
elms.push(ns[i]);
}
}
// elms now contains unique block nodes that we want to send
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