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455c1957b8
* refactor: Remove BlockDragSurface. * refactor: Remove WorkspaceDragSurfaceSvg. * chore: Remove drag surface-related CSS. * chore: Removed unused variable in block_dragger.ts. * chore: Remove references to drag surfaces in comments. * refactor: Only track icons with visible bubbles for position updates during a drag. * fix: Remove rendundant condition. * chore: fixup parameter from rebase --------- Co-authored-by: Aaron Dodson <adodson@google.com>
55 lines
1.6 KiB
TypeScript
55 lines
1.6 KiB
TypeScript
/**
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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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import * as goog from '../../closure/goog/goog.js';
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import type {Coordinate} from '../utils/coordinate.js';
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import type {BlockSvg} from '../block_svg.js';
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goog.declareModuleId('Blockly.IBlockDragger');
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/**
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* A block dragger interface.
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*/
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export interface IBlockDragger {
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/**
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* Start dragging a block.
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*
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* @param currentDragDeltaXY How far the pointer has moved from the position
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* at mouse down, in pixel units.
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* @param healStack Whether or not to heal the stack after disconnecting.
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*/
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startDrag(currentDragDeltaXY: Coordinate, healStack: boolean): void;
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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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*
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* @param e The most recent move event.
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* @param currentDragDeltaXY How far the pointer has moved from the position
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* at the start of the drag, in pixel units.
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*/
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drag(e: Event, currentDragDeltaXY: Coordinate): void;
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/**
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* Finish a block drag and put the block back on the workspace.
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*
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* @param e The mouseup/touchend event.
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* @param currentDragDeltaXY How far the pointer has moved from the position
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* at the start of the drag, in pixel units.
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*/
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endDrag(e: Event, currentDragDeltaXY: Coordinate): void;
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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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*
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* @returns A possibly empty list of insertion marker blocks.
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*/
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getInsertionMarkers(): BlockSvg[];
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/** Sever all links from this object and do any necessary cleanup. */
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dispose(): void;
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}
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