KVComboBox: imported from pve-manager

Makefile

@@ -23,6 +23,7 @@ JSSRC=					\
 	form/IntegerField.js		\
 	form/TextField.js		\
 	form/Checkbox.js		\
+	form/KVComboBox.js		\
 	grid/ObjectGrid.js		\
 	grid/PendingObjectGrid.js	\
 	panel/InputPanel.js		\

form/KVComboBox.js

@@ -0,0 +1,72 @@
+/* Key-Value ComboBox
+ *
+ * config properties:
+ * comboItems: an array of Key - Value pairs
+ * deleteEmpty: if set to true (default), an empty value received from the
+ * comboBox will reset the property to its default value
+ */
+Ext.define('proxmox.form.KVComboBox', {
+    extend: 'Ext.form.field.ComboBox',
+    alias: 'widget.proxmoxKVComboBox',
+
+    deleteEmpty: true,
+    comboItems: undefined,
+    displayField: 'value',
+    valueField: 'key',
+    queryMode: 'local',
+
+    // overide framework function to implement deleteEmpty behaviour
+    getSubmitData: function() {
+        var me = this,
+            data = null,
+            val;
+        if (!me.disabled && me.submitValue) {
+            val = me.getSubmitValue();
+            if (val !== null && val !== '' && val !== '__default__') {
+                data = {};
+                data[me.getName()] = val;
+            } else if (me.deleteEmpty) {
+                data = {};
+                data['delete'] = me.getName();
+            }
+        }
+        return data;
+    },
+
+    validator: function(val) {
+	var me = this;
+
+	if (me.editable || val === null || val === '') {
+	    return true;
+	}
+
+	if (me.store.getCount() > 0) {
+	    var values = me.multiSelect ? val.split(me.delimiter) : [val];
+	    var items = me.store.getData().collect('value', 'data');
+	    if (Ext.Array.every(values, function(value) {
+		return Ext.Array.contains(items, value);
+	    })) {
+		return true;
+	    }
+	}
+
+	// returns a boolean or string
+	/*jslint confusion: true */
+	return "value '" + val + "' not allowed!";
+    },
+
+    initComponent: function() {
+	var me = this;
+
+	me.store = Ext.create('Ext.data.ArrayStore', {
+	    model: 'KeyValue',
+	    data : me.comboItems
+	});
+
+	if (me.initialConfig.editable === undefined) {
+	    me.editable = false;
+	}
+
+	me.callParent();
+    }
+});