ui: add verifyOutdatedAfter component

mainly as separate component for the trigger

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

www/Makefile

@@ -45,6 +45,7 @@ JSSRC=							\
 	form/PermissionPathSelector.js			\
 	form/GroupSelector.js				\
 	form/GroupFilter.js				\
+	form/VerifyOutdatedAfter.js			\
 	data/RunningTasksStore.js			\
 	button/TaskButton.js				\
 	config/UserView.js				\

www/form/VerifyOutdatedAfter.js

@@ -0,0 +1,31 @@
+Ext.define('PBS.form.VerifyOutdatedAfter', {
+    extend: 'Proxmox.form.field.Integer',
+    alias: 'widget.pbsVerifyOutdatedAfter',
+
+    emptyText: gettext('Never'),
+    name: 'outdated-after',
+
+    minValue: 1,
+    value: 30,
+    allowBlank: true,
+
+    triggers: {
+	clear: {
+	    cls: 'pmx-clear-trigger',
+	    weight: -1,
+	    hidden: false,
+	    handler: function() {
+		this.triggers.clear.setVisible(false);
+		this.setValue('');
+	    },
+	},
+    },
+
+    listeners: {
+	change: function(field, value) {
+	    let canClear = value !== '';
+	    field.triggers.clear.setVisible(canClear);
+	},
+    },
+});
+