Files
blockly/core/field_label_serializable.js
Beka Westberg 96935c2502 fix: cereal backwards compatibility (#5421)
* fix: remove duplicate serialization hook implementations

* feat: add backwards compatibility to field serialization

* feat: add support for serializing old mutator hooks

* fix: build

* fix: refactor field changes into helpers

* fix: typo

* fix: removing xmlns

* tests: add tests for serialization and deserialization of mutator hooks

* fix: switch to early returns
2021-09-20 13:08:35 -07:00

74 lines
2.5 KiB
JavaScript

/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Non-editable, serializable text field. Behaves like a
* normal label but is serialized to XML. It may only be
* edited programmatically.
*/
'use strict';
goog.module('Blockly.FieldLabelSerializable');
goog.module.declareLegacyNamespace();
const FieldLabel = goog.require('Blockly.FieldLabel');
const fieldRegistry = goog.require('Blockly.fieldRegistry');
const object = goog.require('Blockly.utils.object');
const utils = goog.require('Blockly.utils');
/**
* Class for a non-editable, serializable text field.
* @param {*} opt_value The initial value of the field. Should cast to a
* string. Defaults to an empty string if null or undefined.
* @param {string=} opt_class Optional CSS class for the field's text.
* @param {Object=} opt_config A map of options used to configure the field.
* See the [field creation documentation]{@link
* https://developers.google.com/blockly/guides/create-custom-blocks/fields/built-in-fields/label-serializable#creation}
* for a list of properties this parameter supports.
* @extends {FieldLabel}
* @constructor
*
*/
const FieldLabelSerializable = function(opt_value, opt_class, opt_config) {
FieldLabelSerializable.superClass_.constructor.call(
this, opt_value, opt_class, opt_config);
};
object.inherits(FieldLabelSerializable, FieldLabel);
/**
* Construct a FieldLabelSerializable from a JSON arg object,
* dereferencing any string table references.
* @param {!Object} options A JSON object with options (text, and class).
* @return {!FieldLabelSerializable} The new field instance.
* @package
* @nocollapse
*/
FieldLabelSerializable.fromJson = function(options) {
const text = utils.replaceMessageReferences(options['text']);
// `this` might be a subclass of FieldLabelSerializable if that class doesn't
// override the static fromJson method.
return new this(text, undefined, options);
};
/**
* Editable fields usually show some sort of UI indicating they are
* editable. This field should not.
* @type {boolean}
*/
FieldLabelSerializable.prototype.EDITABLE = false;
/**
* Serializable fields are saved by the XML renderer, non-serializable fields
* are not. This field should be serialized, but only edited programmatically.
* @type {boolean}
*/
FieldLabelSerializable.prototype.SERIALIZABLE = true;
fieldRegistry.register('field_label_serializable', FieldLabelSerializable);
exports = FieldLabelSerializable;