// Extension to a normal SmartClient TextItem, that extracts a sub-field from a xxxLangs object of a certain language

isc.defineClass("LangTextItem", "TextItem");

isc.LangTextItem.addClassProperties({
    DEFAULT_DISPLAY_FORMATTER: function (value, field) {
        if((typeof value == 'undefined') || (typeof value[formItemLanguage] == 'undefined')) {
            return "";
        }
        return value[formItemLanguage][field.subField];
    }
});

isc.LangTextItem.addClassProperties({
    DEFAULT_SORT_NORMALIZER : function (recordObject, fieldName, context) {
        var value = recordObject[fieldName];
        return isc.LangTextItem.DEFAULT_DISPLAY_FORMATTER(value, context.getField(fieldName));
    },
    DEFAULT_FORMAT_CELL_VALUE: function(value, record){
        return isc.LangTextItem.DEFAULT_DISPLAY_FORMATTER(value, this);
    },
    DEFAULT_GET_GROUP_VALUE: function(value, record, field, fieldName, grid) {
        return isc.LangTextItem.DEFAULT_DISPLAY_FORMATTER(value, field);
    }
});

isc.LangTextItem.addProperties({
    subField: null,
    mapDisplayToValue : function (value) {
        if(isc.isAn.Object(this._value)) {
            if(this._value[formItemLanguage]==null)
                this._value[formItemLanguage] = new Object();
            this._value[formItemLanguage][this.subField] = value;
        }

		return this._value;
	}
});

// Define corresponding type

isc.SimpleType.create({
    name: "langtext",
    editorType: "LangTextItem",
    validators: isc.Validator.create({
        clientOnly: true,
        condition: function (item , validator, value) {
            if (item.required == true) {
                if(typeof value == 'undefined') {
                    return false;
                }
                if(typeof value[formItemLanguage] == 'undefined') {
                    return false;
                }
                if (value[formItemLanguage][item.subField] != null &&
                    value[formItemLanguage][item.subField] != 'undefined' &&
                    value[formItemLanguage][item.subField] != '') {
                    return true;
                }

                return false;
            } else {
                return true;
            }
        },
        errorMessage: "Langtext must not be empty!",
        stopIfFalse: true,
        type: "custom"
    }),
    normalDisplayFormatter : isc.LangTextItem.DEFAULT_DISPLAY_FORMATTER
});