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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.
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 UiBase = goog.require('Blockly.Events.UiBase');
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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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/**
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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;
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