mirror of
https://github.com/google/blockly.git
synced 2026-05-13 07:30:10 +02:00
Aaron Dodson
3851b14627
* refactor: Migrate to named exports * fix: Sort requires * fix: Remove duplicate deps
89 lines
2.3 KiB
JavaScript
89 lines
2.3 KiB
JavaScript
/**
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* @license
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* Copyright 2020 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 Events fired as a block drag.
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*/
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'use strict';
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/**
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* Events fired as a block drag.
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* @class
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*/
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goog.module('Blockly.Events.BlockDrag');
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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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/* eslint-disable-next-line no-unused-vars */
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const {Block} = goog.requireType('Blockly.Block');
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const {UiBase} = goog.require('Blockly.Events.UiBase');
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/**
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* Class for a block drag event.
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* @param {!Block=} opt_block The top block in the stack that is being
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* dragged. Undefined for a blank event.
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* @param {boolean=} opt_isStart Whether this is the start of a block drag.
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* Undefined for a blank event.
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* @param {!Array<!Block>=} opt_blocks The blocks affected by this
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* drag. Undefined for a blank event.
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* @extends {UiBase}
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* @constructor
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* @alias Blockly.Events.BlockDrag
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*/
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const BlockDrag = function(opt_block, opt_isStart, opt_blocks) {
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const workspaceId = opt_block ? opt_block.workspace.id : undefined;
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BlockDrag.superClass_.constructor.call(this, workspaceId);
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this.blockId = opt_block ? opt_block.id : null;
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/**
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* Whether this is the start of a block drag.
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* @type {boolean|undefined}
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*/
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this.isStart = opt_isStart;
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/**
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* The blocks affected by this drag event.
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* @type {!Array<!Block>|undefined}
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*/
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this.blocks = opt_blocks;
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};
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object.inherits(BlockDrag, UiBase);
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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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BlockDrag.prototype.type = eventUtils.BLOCK_DRAG;
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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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BlockDrag.prototype.toJson = function() {
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const json = BlockDrag.superClass_.toJson.call(this);
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json['isStart'] = this.isStart;
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json['blockId'] = this.blockId;
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json['blocks'] = this.blocks;
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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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BlockDrag.prototype.fromJson = function(json) {
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BlockDrag.superClass_.fromJson.call(this, json);
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this.isStart = json['isStart'];
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this.blockId = json['blockId'];
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this.blocks = json['blocks'];
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};
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registry.register(registry.Type.EVENT, eventUtils.BLOCK_DRAG, BlockDrag);
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exports.BlockDrag = BlockDrag;
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