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* chore(deps): Add pretter-plugin-organize-imports * chore: Remove insignificant blank lines in import sections Since prettier-plugin-organize-imports sorts imports within sections separated by blank lines, but preserves the section divisions, remove any blank lines that are not dividing imports into meaningful sections. Do not remove blank lines separating side-effect-only imports from main imports. * chore: Remove unneded eslint-disable directives * chore: Organise imports
78 lines
2.2 KiB
TypeScript
78 lines
2.2 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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/**
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* The abstract class for a component that can delete a block or
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* bubble that is dropped on top of it.
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*
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* @class
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*/
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// Former goog.module ID: Blockly.DeleteArea
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import {BlockSvg} from './block_svg.js';
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import {DragTarget} from './drag_target.js';
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import {isDeletable} from './interfaces/i_deletable.js';
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import type {IDeleteArea} from './interfaces/i_delete_area.js';
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import type {IDraggable} from './interfaces/i_draggable.js';
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/**
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* Abstract class for a component that can delete a block or bubble that is
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* dropped on top of it.
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*/
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export class DeleteArea extends DragTarget implements IDeleteArea {
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/**
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* Whether the last block or bubble dragged over this delete area would be
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* deleted if dropped on this component.
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* This property is not updated after the block or bubble is deleted.
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*/
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protected wouldDelete_ = false;
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/**
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* The unique id for this component that is used to register with the
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* ComponentManager.
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*/
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// TODO(b/109816955): remove '!', see go/strict-prop-init-fix.
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override id!: string;
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/**
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* Constructor for DeleteArea. Should not be called directly, only by a
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* subclass.
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*/
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constructor() {
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super();
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}
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/**
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* Returns whether the provided block or bubble would be deleted if dropped on
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* this area.
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* This method should check if the element is deletable and is always called
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* before onDragEnter/onDragOver/onDragExit.
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*
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* @param element The block or bubble currently being dragged.
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* @returns Whether the element provided would be deleted if dropped on this
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* area.
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*/
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wouldDelete(element: IDraggable): boolean {
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if (element instanceof BlockSvg) {
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const block = element;
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const couldDeleteBlock = !block.getParent() && block.isDeletable();
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this.updateWouldDelete_(couldDeleteBlock);
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} else {
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this.updateWouldDelete_(isDeletable(element) && element.isDeletable());
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}
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return this.wouldDelete_;
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}
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/**
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* Updates the internal wouldDelete_ state.
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*
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* @param wouldDelete The new value for the wouldDelete state.
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*/
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protected updateWouldDelete_(wouldDelete: boolean) {
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this.wouldDelete_ = wouldDelete;
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}
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}
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