mirror of
https://github.com/google/blockly.git
synced 2026-06-17 08:35:12 +02:00
Monica Kozbial
71 lines
1.7 KiB
JavaScript
71 lines
1.7 KiB
JavaScript
/**
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* @license
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* Copyright 2021 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 The abstract class for a component with custom behaviour when a
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* block or bubble is dragged over or dropped on top of it.
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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.DragTarget');
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goog.require('Blockly.IDragTarget');
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goog.requireType('Blockly.BlockSvg');
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goog.requireType('Blockly.IBubble');
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goog.requireType('Blockly.utils.Rect');
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/**
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* Abstract class for a component with custom behaviour when a block or bubble
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* is dragged over or dropped on top of it.
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* @implements {Blockly.IDragTarget}
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* @constructor
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*/
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Blockly.DragTarget = function() {};
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/**
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* Returns the bounding rectangle of the drag target area in pixel units
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* relative to the Blockly injection div.
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* @return {?Blockly.utils.Rect} The component's bounding box. Null if drag
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* target area should be ignored.
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*/
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Blockly.DragTarget.prototype.getClientRect;
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/**
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* Handles when a cursor with a block or bubble enters this drag target.
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*/
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Blockly.DragTarget.prototype.onDragEnter = function() {
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// no-op
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};
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/**
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* Handles when a cursor with a block or bubble exits this drag target.
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*/
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Blockly.DragTarget.prototype.onDragExit = function() {
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// no-op
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};
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/**
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* Handles when a block is dropped on this component. Should not handle delete
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* here.
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* @param {!Blockly.BlockSvg} _block The block.
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*/
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Blockly.DragTarget.prototype.onBlockDrop = function(_block) {
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// no-op
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};
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/**
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* Handles when a bubble is dropped on this component. Should not handle delete
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* here.
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* @param {!Blockly.IBubble} _bubble The bubble.
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*/
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Blockly.DragTarget.prototype.onBubbleDrop = function(_bubble) {
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// no-op
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};
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