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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 { getSelectedTableCells } 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.deep.equal( [] );
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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.deep.equal( [] );
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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.deep.equal( [] );
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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.deep.equal( [] );
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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.deep.equal( [
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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.deep.equal( [
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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.deep.equal( [
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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.deep.equal( [
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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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