1 | /**
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2 | * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
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3 | * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
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4 | */
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5 | /**
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6 | * @module list/documentlist/documentlistmergecommand
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7 | */
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8 | import { Command, type Editor } from 'ckeditor5/src/core';
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9 | import type { Element } from 'ckeditor5/src/engine';
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10 | /**
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11 | * The document list merge command. It is used by the {@link module:list/documentlist~DocumentList list feature}.
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12 | */
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13 | export default class DocumentListMergeCommand extends Command {
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14 | /**
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15 | * Whether list item should be merged before or after the selected block.
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16 | */
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17 | private readonly _direction;
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18 | /**
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19 | * Creates an instance of the command.
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20 | *
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21 | * @param editor The editor instance.
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22 | * @param direction Whether list item should be merged before or after the selected block.
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23 | */
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24 | constructor(editor: Editor, direction: 'forward' | 'backward');
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25 | /**
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26 | * @inheritDoc
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27 | */
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28 | refresh(): void;
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29 | /**
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30 | * Merges list blocks together (depending on the {).
#constructor}'s `direction` parameter |
31 | *
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32 | * @fires execute
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33 | * @fires afterExecute
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34 | * @param options Command options.
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35 | * @param options.shouldMergeOnBlocksContentLevel When set `true`, merging will be performed together
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36 | * with {module:engine/model/model~Model#deleteContent} to get rid of the inline content in the selection or take advantage
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37 | * of the heuristics in `deleteContent()` that helps convert lists into paragraphs in certain cases.
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38 | */
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39 | execute({ shouldMergeOnBlocksContentLevel }?: {
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40 | shouldMergeOnBlocksContentLevel?: boolean;
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41 | }): void;
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42 | /**
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43 | * Fires the `afterExecute` event.
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44 | *
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45 | * @param changedBlocks The changed list elements.
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46 | */
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47 | private _fireAfterExecute;
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48 | /**
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49 | * Checks whether the command can be enabled in the current context.
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50 | *
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51 | * @returns Whether the command should be enabled.
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52 | */
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53 | private _checkEnabled;
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54 | /**
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55 | * Returns the boundary elements the merge should be executed for. These are not necessarily selection's first
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56 | * and last position parents but sometimes sibling or even further blocks depending on the context.
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57 | *
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58 | * @param selection The selection the merge is executed for.
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59 | * @param shouldMergeOnBlocksContentLevel When `true`, merge is performed together with
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60 | * {@link module:engine/model/model~Model#deleteContent} to remove the inline content within the selection.
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61 | */
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62 | private _getMergeSubjectElements;
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63 | }
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64 | /**
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65 | * Event fired by the {@link ~DocumentListMergeCommand#execute} method.
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66 | *
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67 | * It allows to execute an action after executing the {@link module:list/documentlist/documentlistcommand~DocumentListCommand#execute}
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68 | * method, for example adjusting attributes of changed list items.
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69 | *
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70 | * @internal
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71 | * @eventName ~DocumentListMergeCommand#afterExecute
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72 | */
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73 | export type DocumentListMergeCommandAfterExecuteEvent = {
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74 | name: 'afterExecute';
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75 | args: [changedBlocks: Array<Element>];
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76 | };
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