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+/**
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+ * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
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+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
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+ */
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+
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+import Paragraph from '@ckeditor/ckeditor5-paragraph/src/paragraph';
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+import VirtualTestEditor from '@ckeditor/ckeditor5-core/tests/_utils/virtualtesteditor';
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+import TableSelection from '../src/tableselection';
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+import TableEditing from '../src/tableediting';
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+
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+import { setData as setModelData } from '@ckeditor/ckeditor5-engine/src/dev-utils/model';
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+import { modelTable } from './_utils/utils';
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+import {
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+ getSelectedTableCells,
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+ getTableCellsContainingSelection,
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+ getSelectionAffectedTableCells
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+} from '../src/utils';
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+
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+describe( 'table utils', () => {
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+ let editor, model, tableSelection, modelRoot;
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+
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+ beforeEach( async () => {
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+ editor = await VirtualTestEditor.create( {
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+ plugins: [ TableEditing, TableSelection, Paragraph ]
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+ } );
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+
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+ model = editor.model;
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+ modelRoot = model.document.getRoot();
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+ tableSelection = editor.plugins.get( TableSelection );
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+
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+ setModelData( model, modelTable( [
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+ [ '11[]', '12', '13' ],
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+ [ '21', '22', '23' ],
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+ [ '31', '32', '33' ]
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+ ] ) );
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+ } );
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+
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+ afterEach( async () => {
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+ await editor.destroy();
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+ } );
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+
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+ describe( 'getSelectedTableCells()', () => {
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+ let selection;
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+
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+ beforeEach( () => {
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+ selection = model.document.selection;
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+ } );
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+
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+ it( 'should return an empty array when a collapsed selection is anchored in a cell', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRange( writer.createPositionAt( firstCell, 0 ) ) );
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+ } );
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+
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+ expect( getSelectedTableCells( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return an empty array when a non-collapsed selection is anchored in a cell', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeIn( firstCell ) );
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+ } );
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+
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+ expect( getSelectedTableCells( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return an empty array when a non-cell node is selected', () => {
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+ const paragraph = modelRoot.getNodeByPath( [ 0, 0, 0, 0 ] );
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+
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+ expect( paragraph.is( 'paragraph' ) ).to.be.true;
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeOn( paragraph ) );
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+ } );
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+
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+ expect( getSelectedTableCells( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return an empty array when an entire table is selected', () => {
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+ const table = modelRoot.getNodeByPath( [ 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeOn( table ) );
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+ } );
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+
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+ expect( getSelectedTableCells( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return two table cells', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const lastCell = modelRoot.getNodeByPath( [ 0, 0, 1 ] );
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+
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+ tableSelection._setCellSelection( firstCell, lastCell );
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+
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+ expect( Array.from( getSelectedTableCells( selection ) ) ).to.have.ordered.members( [
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+ firstCell, lastCell
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+ ] );
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+ } );
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+
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+ it( 'should return four table cells for diagonal selection', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const lastCell = modelRoot.getNodeByPath( [ 0, 1, 1 ] );
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+
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+ tableSelection._setCellSelection( firstCell, lastCell );
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+
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+ expect( Array.from( getSelectedTableCells( selection ) ) ).to.have.ordered.members( [
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+ firstCell,
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+ modelRoot.getNodeByPath( [ 0, 0, 1 ] ),
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+ modelRoot.getNodeByPath( [ 0, 1, 0 ] ),
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+ lastCell
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+ ] );
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+ } );
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+
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+ it( 'should return row table cells', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const lastCell = modelRoot.getNodeByPath( [ 0, 0, 2 ] );
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+
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+ tableSelection._setCellSelection( firstCell, lastCell );
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+
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+ expect( Array.from( getSelectedTableCells( selection ) ) ).to.have.ordered.members( [
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+ firstCell,
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+ modelRoot.getNodeByPath( [ 0, 0, 1 ] ),
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+ lastCell
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+ ] );
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+ } );
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+
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+ it( 'should return column table cells', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 1 ] );
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+ const lastCell = modelRoot.getNodeByPath( [ 0, 2, 1 ] );
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+
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+ tableSelection._setCellSelection( firstCell, lastCell );
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+
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+ expect( Array.from( getSelectedTableCells( selection ) ) ).to.have.ordered.members( [
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+ firstCell,
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+ modelRoot.getNodeByPath( [ 0, 1, 1 ] ),
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+ lastCell
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+ ] );
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+ } );
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+ } );
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+
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+ describe( 'getTableCellsContainingSelection()', () => {
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+ let selection;
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+
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+ beforeEach( () => {
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+ selection = model.document.selection;
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+ } );
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+
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+ it( 'should return an array with a cell when a selection is anchored in it', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRange( writer.createPositionAt( firstCell, 0 ) ) );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.have.ordered.members( [ firstCell ] );
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+ } );
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+
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+ it( 'should return an array with a cell when a selection range is anchored in its descendant', () => {
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+ const cell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const paragraph = modelRoot.getNodeByPath( [ 0, 0, 0, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRange(
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+ writer.createPositionAt( paragraph, 0 ),
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+ writer.createPositionAt( paragraph, 1 ),
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+ ) );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.have.ordered.members( [
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+ cell
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+ ] );
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+ } );
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+
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+ it( 'should return an array with cells when multiple collapsed selection ranges are anchored in them', () => {
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+ const cellA = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const cellB = modelRoot.getNodeByPath( [ 0, 1, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( [
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+ writer.createRange( writer.createPositionAt( cellA, 0 ) ),
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+ writer.createRange( writer.createPositionAt( cellB, 0 ) )
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+ ] );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.have.ordered.members( [
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+ cellA,
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+ cellB
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+ ] );
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+ } );
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+
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+ it( 'should return an array with cells when multiple non–collapsed selection ranges are anchored in them', () => {
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+ const cellA = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const cellB = modelRoot.getNodeByPath( [ 0, 1, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( [
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+ writer.createRangeIn( cellA ),
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+ writer.createRangeIn( cellB )
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+ ] );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.have.ordered.members( [
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+ cellA,
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+ cellB
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+ ] );
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+ } );
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+
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+ it( 'should return an empty array when an entire cell is selected', () => {
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+ const cell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeOn( cell ) );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return an empty array when an entire table is selected', () => {
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+ const table = modelRoot.getNodeByPath( [ 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeOn( table ) );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.be.empty;
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+ } );
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+
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+ it( 'should return an empty array when unrelated elements host selection ranges', () => {
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+ setModelData( model, '<paragraph>foo</paragraph>' );
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+
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+ const paragraph = modelRoot.getNodeByPath( [ 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRange( writer.createPositionAt( paragraph, 1 ) ) );
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+ } );
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+
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+ expect( getTableCellsContainingSelection( selection ) ).to.be.empty;
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+ } );
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+ } );
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+
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+ describe( 'getSelectionAffectedTableCells()', () => {
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+ let selection;
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+
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+ beforeEach( () => {
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+ selection = model.document.selection;
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+ } );
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+
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+ it( 'should return completely selected cells (if there are any)', () => {
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+ const firstCell = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const lastCell = modelRoot.getNodeByPath( [ 0, 0, 1 ] );
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+
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+ tableSelection._setCellSelection( firstCell, lastCell );
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+
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+ expect( Array.from( getSelectionAffectedTableCells( selection ) ) ).to.have.ordered.members( [
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+ firstCell, lastCell
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+ ] );
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+ } );
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+
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+ it( 'should return cells when selection ranges are starting in them', () => {
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+ const cellA = modelRoot.getNodeByPath( [ 0, 0, 0 ] );
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+ const cellB = modelRoot.getNodeByPath( [ 0, 1, 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( [
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+ writer.createRange( writer.createPositionAt( cellA, 0 ) ),
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+ writer.createRange( writer.createPositionAt( cellB, 0 ) )
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+ ] );
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+ } );
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+
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+ expect( getSelectionAffectedTableCells( selection ) ).to.have.ordered.members( [
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+ cellA,
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+ cellB
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+ ] );
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+ } );
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+
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+ it( 'should return an empty array if no cells are selected and no selection ranges start in any cell', () => {
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+ const table = modelRoot.getNodeByPath( [ 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRangeOn( table ) );
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+ } );
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+
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+ expect( getSelectionAffectedTableCells( selection ) ).to.be.empty;
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+
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+ setModelData( model, '<paragraph>foo</paragraph>' );
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+
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+ const paragraph = modelRoot.getNodeByPath( [ 0 ] );
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+
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+ model.change( writer => {
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+ writer.setSelection( writer.createRange( writer.createPositionAt( paragraph, 1 ) ) );
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+ } );
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+
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+ expect( getSelectionAffectedTableCells( selection ) ).to.be.empty;
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+ } );
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+ } );
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+} );
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