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init.js
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init.js
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var huzbl = {
links : document.getElementsByTagName("a"),
activate : function(e) {
while (e && e != document) {
if (typeof(e.click) === 'function')
e.click();
else if (typeof(e.href) === 'string')
location = e.href;
e = e.parentNode;
}
},
linkSelected : -1,
linkFocus : function(n) {
this.linkSelected = n;
this.links[n].focus();
},
linkSelect : function(t, r) {
var el = document.querySelector('link[rel=' + t + ']');
if (el)
location = el.href;
else {
for (var i = this.linkSelected+1; i < this.links.length; i++)
if (r.test(this.links[i].text)) {
this.linkFocus(i);
break;
}
this.linkSelected = -1;
}
},
blockTest : function(type, src) {
var block = huzbl.block && huzbl.block[type.toUpperCase()];
if (!block) {
if (!huzbl.block || huzbl.block.verbose)
console.warn("allowing unknown block type: " + type);
return true;
}
var res = block.default;
if ("cur" in block && huzbl.domainre.test(src))
res = block.cur;
else if (block.src && block.src.test(src))
res = !res;
if (huzbl.block.verbose && (!res || res !== block.default))
console.log((res ? "allowing" : "blocking") + " " + type + " " + src);
return res;
},
addEvents : function(doc) {
doc.addEventListener("beforeload", function(event) {
if (!huzbl.blockTest(event.target.tagName, event.target.src)) {
event.preventDefault();
event.target.parentNode.removeChild(event.target);
} else if (event.target.tagName.toUpperCase() === "IFRAME")
huzbl.addEvents(event.target.contentDocument); /* this does not work, possibly because the document hasn't started loading yet */
}, true);
doc.addEventListener("DOMContentLoaded", function(event) {
if (!huzbl.blockTest("script", doc.location)) {
var scripts = doc.getElementsByTagName('script');
for (var i = scripts.length-1; i >= 0; i--)
scripts[i].parentNode.removeChild(scripts[i]);
}
}, true);
},
linkNumber : {
class : "huzbl_link_number",
update : function (n) {
var link = huzbl.links[n];
var ln = link.firstChild;
if (!(ln && "className" in ln && ln.className === this.class))
{
ln = document.createElement("span");
ln.className = this.class;
link.insertBefore(ln, link.firstChild);
}
ln.innerText = n+1;
},
show : function () {
for (var n = 0; n < huzbl.links.length; n ++)
this.update(n);
},
hide : function () {
var l = document.getElementsByClassName(this.class);
for (var i = l.length-1; i >= 0; i --)
l[i].parentNode.removeChild(l[i]);
},
focus : function(n) {
huzbl.linkFocus(n-1);
},
activate : function (n) {
huzbl.activate(huzbl.links[n-1]);
},
get : function (n) {
return huzbl.links[n-1].href;
}
}
};
huzbl.addEvents(document);