mirror of
https://github.com/google/blockly.git
synced 2026-05-12 23:20:10 +02:00
Beka Westberg
76 lines
2.4 KiB
TypeScript
76 lines
2.4 KiB
TypeScript
/**
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* @license
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* Copyright 2019 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @fileoverview Non-editable, serializable text field. Behaves like a
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* normal label but is serialized to XML. It may only be
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* edited programmatically.
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*/
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/**
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* Non-editable, serializable text field. Behaves like a
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* normal label but is serialized to XML. It may only be
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* edited programmatically.
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* @class
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*/
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import {FieldLabel} from './field_label';
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import * as fieldRegistry from './field_registry';
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import * as parsing from './utils/parsing';
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/**
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* Class for a non-editable, serializable text field.
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* @alias Blockly.FieldLabelSerializable
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*/
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export class FieldLabelSerializable extends FieldLabel {
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/**
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* Editable fields usually show some sort of UI indicating they are
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* editable. This field should not.
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*/
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override EDITABLE = false;
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/**
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* Serializable fields are saved by the XML renderer, non-serializable
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* fields are not. This field should be serialized, but only edited
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* programmatically.
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*/
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override SERIALIZABLE = true;
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/**
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* @param opt_value The initial value of the field. Should cast to a string.
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* Defaults to an empty string if null or undefined.
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* @param opt_class Optional CSS class for the field's text.
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* @param opt_config A map of options used to configure the field.
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* See the [field creation documentation]{@link
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* https://developers.google.com/blockly/guides/create-custom-blocks/fields/built-in-fields/label-serializable#creation}
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* for a list of properties this parameter supports.
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*/
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constructor(
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opt_value?: string, opt_class?: string, opt_config?: AnyDuringMigration) {
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super(String(opt_value ?? ''), opt_class, opt_config);
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}
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/**
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* Construct a FieldLabelSerializable from a JSON arg object,
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* dereferencing any string table references.
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* @param options A JSON object with options (text, and class).
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* @return The new field instance.
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* @nocollapse
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* @internal
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*/
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static override fromJson(options: AnyDuringMigration):
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FieldLabelSerializable {
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const text = parsing.replaceMessageReferences(options['text']);
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// `this` might be a subclass of FieldLabelSerializable if that class
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// doesn't override the static fromJson method.
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return new this(text, undefined, options);
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}
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}
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fieldRegistry.register('field_label_serializable', FieldLabelSerializable);
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