luci-base: luci.js: add isObject(), toArray() and sortedKeys() helper

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

diff --git a/modules/luci-base/htdocs/luci-static/resources/luci.js b/modules/luci-base/htdocs/luci-static/resources/luci.js
index 1e1c38bbedce350a2d8e65e394b91ef1c4899733..93ecbac15f1c16c05861c2dbadce7addfe34ea38 100644 (file)
--- a/modules/luci-base/htdocs/luci-static/resources/luci.js
+++ b/modules/luci-base/htdocs/luci-static/resources/luci.js
@@ -811,6 +811,56 @@
                },
 
 
+               /* Data helpers */
+               isObject: function(val) {
+                       return (val != null && typeof(val) == 'object');
+               },
+
+               sortedKeys: function(obj, key, sortmode) {
+                       if (obj == null || typeof(obj) != 'object')
+                               return [];
+
+                       return Object.keys(obj).map(function(e) {
+                               var v = (key != null) ? obj[e][key] : e;
+
+                               switch (sortmode) {
+                               case 'addr':
+                                       v = (v != null) ? v.replace(/(?:^|[.:])([0-9a-fA-F]{1,4})/g,
+                                               function(m0, m1) { return ('000' + m1.toLowerCase()).substr(-4) }) : null;
+                                       break;
+
+                               case 'num':
+                                       v = (v != null) ? +v : null;
+                                       break;
+                               }
+
+                               return [ e, v ];
+                       }).filter(function(e) {
+                               return (e[1] != null);
+                       }).sort(function(a, b) {
+                               return (a[1] > b[1]);
+                       }).map(function(e) {
+                               return e[0];
+                       });
+               },
+
+               toArray: function(val) {
+                       if (val == null)
+                               return [];
+                       else if (Array.isArray(val))
+                               return val;
+                       else if (typeof(val) == 'object')
+                               return [ val ];
+
+                       var s = String(val).trim();
+
+                       if (s == '')
+                               return [];
+
+                       return s.split(/\s+/);
+               },
+
+
                /* HTTP resource fetching */
                get: function(url, args, cb) {
                        return this.poll(null, url, args, cb, false);