20240517

node_modules/store2/src/store.cache.js

@@ -0,0 +1,67 @@
+/**
+ * Copyright (c) 2013 ESHA Research
+ * Dual licensed under the MIT and GPL licenses:
+ *   http://www.opensource.org/licenses/mit-license.php
+ *   http://www.gnu.org/licenses/gpl.html
+ *
+ * Allows use of a number as 'overwrite' param on set calls to give time in seconds after
+ * which the value should not be retrievable again (an expiration time).
+ *
+ * Status: BETA - useful, needs testing
+ */
+;(function(_) {
+    var prefix = 'exp@',
+        suffix = ';',
+        parse = _.parse,
+        _get = _.get,
+        _set = _.set;
+    _.parse = function(s, fn) {
+        if (s && s.indexOf(prefix) === 0) {
+            s = s.substring(s.indexOf(suffix)+1);
+        }
+        return parse(s, fn);
+    };
+    _.expires = function(s) {
+        if (s && s.indexOf(prefix) === 0) {
+            return parseInt(s.substring(prefix.length, s.indexOf(suffix)), 10);
+        }
+        return false;
+    };
+    _.when = function(sec) {// if sec, return sec->date, else date->sec
+        var now = Math.floor((new Date().getTime())/1000);
+        return sec ? new Date((now+sec)*1000) : now;
+    };
+    _.cache = function(area, key) {
+        var s = _get(area, key),
+            sec = _.expires(s);
+        if (sec && _.when() >= sec) {
+            return area.removeItem(key);
+        }
+        return s;
+    };
+    _.get = function(area, key) {
+        var s = _.cache(area, key);
+        return s === undefined ? null : s;
+    };
+    _.set = function(area, key, string, sec) {
+        try {
+            if (sec) {
+                string = prefix + (_.when()+sec) + suffix + string;
+            }
+            _set(area, key, string);
+        } catch (e) {
+            if (e.name === 'QUOTA_EXCEEDED_ERR' || e.name === 'NS_ERROR_DOM_QUOTA_REACHED') {
+                var changed = false;
+                for (var i=0,m=area.length; i<m; i++) {
+                    if (_.cache(area, key) === undefined) {
+                        changed = true;
+                    }
+                }
+                if (changed) {
+                    return _.set.apply(this, arguments);
+                }
+            }
+            throw e;
+        }
+    };
+})(window.store._, undefined);