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88 lines
2.2 KiB
JavaScript
88 lines
2.2 KiB
JavaScript
/**
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* @license
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* Copyright 2018 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 Class for a variable creation event.
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*/
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'use strict';
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/**
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* Class for a variable creation event.
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* @class
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*/
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goog.module('Blockly.Events.VarCreate');
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const eventUtils = goog.require('Blockly.Events.utils');
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const object = goog.require('Blockly.utils.object');
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const registry = goog.require('Blockly.registry');
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const {VarBase} = goog.require('Blockly.Events.VarBase');
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/* eslint-disable-next-line no-unused-vars */
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const {VariableModel} = goog.requireType('Blockly.VariableModel');
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/**
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* Class for a variable creation event.
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* @param {!VariableModel=} opt_variable The created variable. Undefined
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* for a blank event.
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* @extends {VarBase}
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* @constructor
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* @alias Blockly.Events.VarCreate
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*/
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const VarCreate = function(opt_variable) {
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VarCreate.superClass_.constructor.call(this, opt_variable);
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if (!opt_variable) {
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return; // Blank event to be populated by fromJson.
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}
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this.varType = opt_variable.type;
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this.varName = opt_variable.name;
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};
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object.inherits(VarCreate, VarBase);
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/**
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* Type of this event.
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* @type {string}
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*/
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VarCreate.prototype.type = eventUtils.VAR_CREATE;
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/**
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* Encode the event as JSON.
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* @return {!Object} JSON representation.
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*/
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VarCreate.prototype.toJson = function() {
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const json = VarCreate.superClass_.toJson.call(this);
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json['varType'] = this.varType;
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json['varName'] = this.varName;
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return json;
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};
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/**
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* Decode the JSON event.
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* @param {!Object} json JSON representation.
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*/
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VarCreate.prototype.fromJson = function(json) {
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VarCreate.superClass_.fromJson.call(this, json);
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this.varType = json['varType'];
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this.varName = json['varName'];
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};
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/**
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* Run a variable creation event.
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* @param {boolean} forward True if run forward, false if run backward (undo).
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*/
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VarCreate.prototype.run = function(forward) {
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const workspace = this.getEventWorkspace_();
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if (forward) {
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workspace.createVariable(this.varName, this.varType, this.varId);
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} else {
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workspace.deleteVariableById(this.varId);
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}
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};
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registry.register(registry.Type.EVENT, eventUtils.VAR_CREATE, VarCreate);
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exports.VarCreate = VarCreate;
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