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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.
67 lines
1.8 KiB
JavaScript
67 lines
1.8 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 interface for a block dragger.
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*/
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'use strict';
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/**
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* The interface for a block dragger.
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* @namespace Blockly.IBlockDragger
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*/
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goog.module('Blockly.IBlockDragger');
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/* eslint-disable-next-line no-unused-vars */
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const Coordinate = goog.requireType('Blockly.utils.Coordinate');
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/* eslint-disable-next-line no-unused-vars */
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const {BlockSvg} = goog.requireType('Blockly.BlockSvg');
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/**
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* A block dragger interface.
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* @interface
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* @alias Blockly.IBlockDragger
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*/
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const IBlockDragger = function() {};
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/**
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* Start dragging a block. This includes moving it to the drag surface.
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* @param {!Coordinate} currentDragDeltaXY How far the pointer has
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* moved from the position at mouse down, in pixel units.
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* @param {boolean} healStack Whether or not to heal the stack after
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* disconnecting.
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*/
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IBlockDragger.prototype.startDrag;
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/**
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* Execute a step of block dragging, based on the given event. Update the
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* display accordingly.
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* @param {!Event} e The most recent move event.
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* @param {!Coordinate} currentDragDeltaXY How far the pointer has
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* moved from the position at the start of the drag, in pixel units.
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*/
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IBlockDragger.prototype.drag;
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/**
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* Finish a block drag and put the block back on the workspace.
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* @param {!Event} e The mouseup/touchend event.
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* @param {!Coordinate} currentDragDeltaXY How far the pointer has
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* moved from the position at the start of the drag, in pixel units.
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*/
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IBlockDragger.prototype.endDrag;
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/**
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* Get a list of the insertion markers that currently exist. Drags have 0, 1,
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* or 2 insertion markers.
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* @return {!Array.<!BlockSvg>} A possibly empty list of insertion
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* marker blocks.
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*/
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IBlockDragger.prototype.getInsertionMarkers;
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exports = IBlockDragger;
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