Conditionally hide settings in Advanced Options

src/webui/www/private/scripts/misc.js

@@ -40,6 +40,7 @@ window.qBittorrent.Misc = (function() {
             friendlyPercentage: friendlyPercentage,
             friendlyFloat: friendlyFloat,
             parseHtmlLinks: parseHtmlLinks,
+            parseVersion: parseVersion,
             escapeHtml: escapeHtml,
             naturalSortCollator: naturalSortCollator,
             safeTrim: safeTrim,
@@ -171,6 +172,29 @@ window.qBittorrent.Misc = (function() {
         return text.replace(exp, "<a target='_blank' rel='noopener noreferrer' href='$1'>$1</a>");
     };
 
+    const parseVersion = function(versionString) {
+        const failure = {
+            valid: false
+        };
+
+        if (typeof versionString !== 'string')
+            return failure;
+
+        const tryToNumber = (str) => {
+            const num = Number(str);
+            return (isNaN(num) ? str : num);
+        };
+
+        const ver = versionString.split('.', 4).map(val => tryToNumber(val));
+        return {
+            valid: true,
+            major: ver[0],
+            minor: ver[1],
+            fix: ver[2],
+            patch: ver[3]
+        };
+    };
+
     const escapeHtml = function(str) {
         const div = document.createElement('div');
         div.appendChild(document.createTextNode(str));