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const scriptElement = document.createElement('script'); |
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|
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scriptElement.innerHTML = ` |
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function hnJobQuery() { |
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var |
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// HN is done with very unsemantic classes. |
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job_list = Array.prototype.slice.call(document.querySelectorAll('.c5a,.cae,.c00,.c9c,.cdd,.c73,.c88')), |
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query_list = Array.prototype.slice.call(arguments), |
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shown = 0, total = job_list.length; |
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// Traverses up the dom stack trying to find a match of a specific class |
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function up_to(node, klass) { |
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if (node.classList.contains(klass)) { |
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return node; |
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} |
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if(node === document.body) { |
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throw new Exception(); |
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} |
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return up_to(node.parentNode, klass); |
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} |
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function display(node, what) { |
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up_to(node, 'athing').style.display = what; |
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} |
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// If we have a RegEx, return it |
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// Otherwise make it a case insensitive regex. |
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function destring(what) { |
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return what.test ? what : new RegExp(what.toString(), 'i'); |
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} |
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// Hide all the postings |
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job_list.forEach(function(node) { |
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display(node, 'none'); |
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}); |
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query_list.forEach(function(query) { |
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if (query.forEach) { |
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var and_query_list = query.map(destring); |
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|
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job_list.forEach(function(node) { |
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var |
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doesMatch = true, |
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toTest = node.innerHTML; |
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and_query_list.forEach(function(query) { |
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doesMatch &= toTest.search(query) > -1; |
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}) |
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if(doesMatch) { |
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display(node, 'block'); |
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shown ++; |
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} |
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}); |
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} else { |
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query = destring(query); |
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|
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job_list.forEach(function(node) { |
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if(node.innerHTML.search(query) > -1) { |
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display(node, 'block'); |
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shown ++; |
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} |
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}); |
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} |
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}); |
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return {shown: shown, total: total} |
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} |
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`; |
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scriptElement.onload = _ => { |
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this.remove(); |
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}; |
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(document.body).appendChild(scriptElement); |
