84 lines
2.3 KiB
JavaScript
84 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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* @author kozbial@google.com (Monica Kozbial)
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*/
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'use strict';
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goog.provide('Blockly.Events.BlockDrag');
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goog.require('Blockly.Events');
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goog.require('Blockly.Events.UiBase');
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goog.require('Blockly.registry');
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goog.require('Blockly.utils.object');
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goog.requireType('Blockly.Block');
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/**
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* Class for a block drag event.
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* @param {!Blockly.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<!Blockly.Block>=} opt_blocks The blocks affected by this
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* drag. Undefined for a blank event.
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* @extends {Blockly.Events.UiBase}
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* @constructor
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*/
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Blockly.Events.BlockDrag = function(opt_block, opt_isStart, opt_blocks) {
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var workspaceId = opt_block ? opt_block.workspace.id : undefined;
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Blockly.Events.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<!Blockly.Block>|undefined}
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*/
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this.blocks = opt_blocks;
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};
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Blockly.utils.object.inherits(Blockly.Events.BlockDrag, Blockly.Events.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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Blockly.Events.BlockDrag.prototype.type = Blockly.Events.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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Blockly.Events.BlockDrag.prototype.toJson = function() {
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var json = Blockly.Events.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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Blockly.Events.BlockDrag.prototype.fromJson = function(json) {
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Blockly.Events.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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Blockly.registry.register(Blockly.registry.Type.EVENT,
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Blockly.Events.BLOCK_DRAG, Blockly.Events.BlockDrag);
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