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90b3f75d82
Our files are up to a decade old, and have churned so much, that the initial author of the file no longer has much meaning. Furthermore, this will encourage developers to post to the developer group, rather than emailing Googlers (usually me) directly.
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 Classes for all types of variable events.
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*/
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'use strict';
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/**
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* Classes for all types of variable events.
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* @class
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*/
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goog.module('Blockly.Events.VarDelete');
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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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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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/**
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* Class for a variable deletion event.
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* @param {!VariableModel=} opt_variable The deleted 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.VarDelete
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*/
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const VarDelete = function(opt_variable) {
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VarDelete.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(VarDelete, 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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VarDelete.prototype.type = eventUtils.VAR_DELETE;
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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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VarDelete.prototype.toJson = function() {
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const json = VarDelete.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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VarDelete.prototype.fromJson = function(json) {
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VarDelete.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 deletion 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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VarDelete.prototype.run = function(forward) {
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const workspace = this.getEventWorkspace_();
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if (forward) {
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workspace.deleteVariableById(this.varId);
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} else {
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workspace.createVariable(this.varName, this.varType, this.varId);
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}
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};
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registry.register(registry.Type.EVENT, eventUtils.VAR_DELETE, VarDelete);
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exports = VarDelete;
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