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Code Issues Releases Wiki Activity

this fixes #945

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gorhill 2015-03-05 12:52:12 -05:00
parent b01dfcbf62
commit e23c2977d7
1 changed files with 36 additions and 5 deletions
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41
src/js/element-picker.js
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@ -423,16 +423,47 @@ var elementsFromFilter = function(filter) {
// Net filters: we need to lookup manually -- translating into a
// foolproof CSS selector is just not possible
if ( filter.slice(0, 2) === '||' ) {
filter = filter.replace('||', '');
// https://github.com/gorhill/uBlock/issues/945
// Transform into a regular expression, this allows the user to edit and
// insert wildcard(s) into the proposed filter
var reStr = '';
if ( filter.length > 1 && filter.charAt(0) === '/' && filter.slice(-1) === '/' ) {
reStr = filter.slice(1, -1);
}
var elems = document.querySelectorAll('iframe, img, object, embed');
else {
var rePrefix = '', reSuffix = '';
if ( filter.slice(0, 2) === '||' ) {
filter = filter.replace('||', '');
} else {
if ( filter.charAt(0) === '|' ) {
rePrefix = '^';
filter = filter.slice(1);
}
}
if ( filter.slice(-1) === '|' ) {
reSuffix = '$';
filter = filter.slice(0, -1);
}
reStr = rePrefix +
filter.replace(/[.+?${}()|[\]\\]/g, '\\$&').replace(/[\*^]+/g, '.*') +
reSuffix;
}
var reFilter = null;
try {
reFilter = new RegExp(reStr);
} catch (e) {
return out;
}
var props = netFilterSources;
var elems = document.querySelectorAll(Object.keys(props).join());
var i = elems.length;
var elem, src;
while ( i-- ) {
elem = elems[i];
src = elem[netFilterSources[elem.tagName.toLowerCase()]];
if ( src && src.indexOf(filter) !== -1 ) {
src = elem[props[elem.tagName.toLowerCase()]];
if ( src && reFilter.test(src) ) {
out.push(elem);
}
}