/**
* @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
import Selection from '../../src/view/selection';
import DocumentSelection from '../../src/view/documentselection';
import Range from '../../src/view/range';
import Document from '../../src/view/document';
import Element from '../../src/view/element';
import Text from '../../src/view/text';
import Position from '../../src/view/position';
import count from '@ckeditor/ckeditor5-utils/src/count';
import createViewRoot from './_utils/createroot';
import { parse } from '../../src/dev-utils/view';
import testUtils from '@ckeditor/ckeditor5-core/tests/_utils/utils';
import { expectToThrowCKEditorError } from '@ckeditor/ckeditor5-utils/tests/_utils/utils';
import { StylesProcessor } from '../../src/view/stylesmap';
describe( 'Selection', () => {
let selection, el, range1, range2, range3, viewDocument;
testUtils.createSinonSandbox();
beforeEach( () => {
viewDocument = new Document( new StylesProcessor() );
const text = new Text( viewDocument, 'xxxxxxxxxxxxxxxxxxxx' );
el = new Element( viewDocument, 'p', null, text );
selection = new Selection();
range1 = Range._createFromParentsAndOffsets( text, 5, text, 10 );
range2 = Range._createFromParentsAndOffsets( text, 1, text, 2 );
range3 = Range._createFromParentsAndOffsets( text, 12, text, 14 );
} );
describe( 'constructor()', () => {
it( 'should be able to create an empty selection', () => {
const selection = new Selection();
expect( Array.from( selection.getRanges() ) ).to.deep.equal( [] );
} );
it( 'should be able to create a selection from the given ranges', () => {
const ranges = [ range1, range2, range3 ];
const selection = new Selection( ranges );
expect( Array.from( selection.getRanges() ) ).to.deep.equal( ranges );
} );
it( 'should be able to create a selection from the given ranges and isLastBackward flag', () => {
const ranges = [ range1, range2, range3 ];
const selection = new Selection( ranges, { backward: true } );
expect( selection.isBackward ).to.be.true;
} );
it( 'should be able to create a selection from the given range and isLastBackward flag', () => {
const selection = new Selection( range1, { backward: true } );
expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range1 ] );
expect( selection.isBackward ).to.be.true;
} );
it( 'should be able to create a selection from the given iterable of ranges and isLastBackward flag', () => {
const ranges = new Set( [ range1, range2, range3 ] );
const selection = new Selection( ranges, { backward: false } );
expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range1, range2, range3 ] );
expect( selection.isBackward ).to.be.false;
} );
it( 'should be able to create a collapsed selection at the given position', () => {
const position = range1.start;
const selection = new Selection( position );
expect( Array.from( selection.getRanges() ).length ).to.equal( 1 );
expect( selection.getFirstRange().start ).to.deep.equal( position );
expect( selection.getFirstRange().end ).to.deep.equal( position );
expect( selection.isBackward ).to.be.false;
} );
it( 'should be able to create a selection from the other selection', () => {
const otherSelection = new Selection( [ range2, range3 ], { backward: true } );
const selection = new Selection( otherSelection );
expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range2, range3 ] );
expect( selection.isBackward ).to.be.true;
} );
it( 'should be able to create a selection from the other document selection', () => {
const otherSelection = new DocumentSelection( [ range2, range3 ], { backward: true } );
const selection = new Selection( otherSelection );
expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range2, range3 ] );
expect( selection.isBackward ).to.be.true;
} );
it( 'should be able to create a fake selection from the other fake selection', () => {
const otherSelection = new Selection( [ range2, range3 ], { fake: true, label: 'foo bar baz' } );
const selection = new Selection( otherSelection );
expect( selection.isFake ).to.be.true;
expect( selection.fakeSelectionLabel ).to.equal( 'foo bar baz' );
} );
it( 'should throw an error when range is invalid', () => {
expectToThrowCKEditorError( () => {
// eslint-disable-next-line no-new
new Selection( [ { invalid: 'range' } ] );
}, /view-selection-add-range-not-range/ );
} );
it( 'should throw an error when ranges intersects', () => {
const text = el.getChild( 0 );
const range2 = Range._createFromParentsAndOffsets( text, 7, text, 15 );
expectToThrowCKEditorError( () => {
// eslint-disable-next-line no-new
new Selection( [ range1, range2 ] );
}, 'view-selection-range-intersects' );
} );
it( 'should throw an error when trying to set to not selectable', () => {
expectToThrowCKEditorError( () => {
// eslint-disable-next-line no-new
new Selection( {} );
}, 'view-selection-setto-not-selectable' );
} );
} );
describe( 'anchor', () => {
it( 'should return null if no ranges in selection', () => {
expect( selection.anchor ).to.be.null;
} );
it( 'should return start of single range in selection', () => {
selection.setTo( range1 );
const anchor = selection.anchor;
expect( anchor.isEqual( range1.start ) ).to.be.true;
expect( anchor ).to.not.equal( range1.start );
} );
it( 'should return end of single range in selection when added as backward', () => {
selection.setTo( range1, { backward: true } );
const anchor = selection.anchor;
expect( anchor.isEqual( range1.end ) ).to.be.true;
expect( anchor ).to.not.equal( range1.end );
} );
it( 'should get anchor from last inserted range', () => {
selection.setTo( [ range1, range2 ] );
expect( selection.anchor.isEqual( range2.start ) ).to.be.true;
} );
} );
describe( 'focus', () => {
it( 'should return null if no ranges in selection', () => {
expect( selection.focus ).to.be.null;
} );
it( 'should return end of single range in selection', () => {
selection.setTo( range1 );
const focus = selection.focus;
expect( focus.isEqual( range1.end ) ).to.be.true;
} );
it( 'should return start of single range in selection when added as backward', () => {
selection.setTo( range1, { backward: true } );
const focus = selection.focus;
expect( focus.isEqual( range1.start ) ).to.be.true;
expect( focus ).to.not.equal( range1.start );
} );
it( 'should get focus from last inserted range', () => {
selection.setTo( [ range1, range2 ] );
expect( selection.focus.isEqual( range2.end ) ).to.be.true;
} );
} );
describe( 'setFocus()', () => {
it( 'keeps all existing ranges when no modifications needed', () => {
selection.setTo( range1 );
selection.setFocus( selection.focus );
expect( count( selection.getRanges() ) ).to.equal( 1 );
} );
it( 'throws if there are no ranges in selection', () => {
const endPos = Position._createAt( el, 'end' );
expectToThrowCKEditorError( () => {
selection.setFocus( endPos );
}, 'view-selection-setfocus-no-ranges' );
} );
it( 'modifies existing collapsed selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
selection.setTo( startPos );
selection.setFocus( endPos );
expect( selection.anchor.compareWith( startPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( endPos ) ).to.equal( 'same' );
} );
it( 'makes existing collapsed selection a backward selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 0 );
selection.setTo( startPos );
selection.setFocus( endPos );
expect( selection.anchor.compareWith( startPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( endPos ) ).to.equal( 'same' );
expect( selection.isBackward ).to.be.true;
} );
it( 'modifies existing non-collapsed selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
const newEndPos = Position._createAt( el, 3 );
selection.setTo( new Range( startPos, endPos ) );
selection.setFocus( newEndPos );
expect( selection.anchor.compareWith( startPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( newEndPos ) ).to.equal( 'same' );
} );
it( 'makes existing non-collapsed selection a backward selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
const newEndPos = Position._createAt( el, 0 );
selection.setTo( new Range( startPos, endPos ) );
selection.setFocus( newEndPos );
expect( selection.anchor.compareWith( startPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( newEndPos ) ).to.equal( 'same' );
expect( selection.isBackward ).to.be.true;
} );
it( 'makes existing backward selection a forward selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
const newEndPos = Position._createAt( el, 3 );
selection.setTo( new Range( startPos, endPos ), { backward: true } );
selection.setFocus( newEndPos );
expect( selection.anchor.compareWith( endPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( newEndPos ) ).to.equal( 'same' );
expect( selection.isBackward ).to.be.false;
} );
it( 'modifies existing backward selection', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
const newEndPos = Position._createAt( el, 0 );
selection.setTo( new Range( startPos, endPos ), { backward: true } );
selection.setFocus( newEndPos );
expect( selection.anchor.compareWith( endPos ) ).to.equal( 'same' );
expect( selection.focus.compareWith( newEndPos ) ).to.equal( 'same' );
expect( selection.isBackward ).to.be.true;
} );
it( 'modifies only the last range', () => {
// Offsets are chosen in this way that the order of adding ranges must count, not their document order.
const startPos1 = Position._createAt( el, 4 );
const endPos1 = Position._createAt( el, 5 );
const startPos2 = Position._createAt( el, 1 );
const endPos2 = Position._createAt( el, 2 );
const newEndPos = Position._createAt( el, 0 );
selection.setTo( [
new Range( startPos1, endPos1 ),
new Range( startPos2, endPos2 )
] );
selection.setFocus( newEndPos );
const ranges = Array.from( selection.getRanges() );
expect( ranges ).to.have.lengthOf( 2 );
expect( ranges[ 0 ].start.compareWith( startPos1 ) ).to.equal( 'same' );
expect( ranges[ 0 ].end.compareWith( endPos1 ) ).to.equal( 'same' );
expect( selection.anchor.compareWith( startPos2 ) ).to.equal( 'same' );
expect( selection.focus.compareWith( newEndPos ) ).to.equal( 'same' );
expect( selection.isBackward ).to.be.true;
} );
it( 'collapses the selection when extending to the anchor', () => {
const startPos = Position._createAt( el, 1 );
const endPos = Position._createAt( el, 2 );
selection.setTo( new Range( startPos, endPos ) );
selection.setFocus( startPos );
expect( selection.focus.compareWith( startPos ) ).to.equal( 'same' );
expect( selection.isCollapsed ).to.be.true;
} );
} );
describe( 'isCollapsed', () => {
it( 'should return true when there is single collapsed range', () => {
const range = Range._createFromParentsAndOffsets( el, 5, el, 5 );
selection.setTo( range );
expect( selection.isCollapsed ).to.be.true;
} );
it( 'should return false when there are multiple ranges', () => {
const range1 = Range._createFromParentsAndOffsets( el, 5, el, 5 );
const range2 = Range._createFromParentsAndOffsets( el, 15, el, 15 );
selection.setTo( [ range1, range2 ] );
expect( selection.isCollapsed ).to.be.false;
} );
it( 'should return false when there is not collapsed range', () => {
const range = Range._createFromParentsAndOffsets( el, 15, el, 16 );
selection.setTo( range );
expect( selection.isCollapsed ).to.be.false;
} );
} );
describe( 'rangeCount', () => {
it( 'should return proper range count', () => {
expect( selection.rangeCount ).to.equal( 0 );
selection.setTo( range1 );
expect( selection.rangeCount ).to.equal( 1 );
selection.setTo( [ range1, range2 ] );
expect( selection.rangeCount ).to.equal( 2 );
} );
} );
describe( 'isBackward', () => {
it( 'is defined by the last added range', () => {
const range1 = Range._createFromParentsAndOffsets( el, 5, el, 10 );
const range2 = Range._createFromParentsAndOffsets( el, 15, el, 16 );
selection.setTo( range1, { backward: true } );
expect( selection ).to.have.property( 'isBackward', true );
selection.setTo( [ range1, range2 ] );
expect( selection ).to.have.property( 'isBackward', false );
} );
it( 'is false when last range is collapsed', () => {
const range = Range._createFromParentsAndOffsets( el, 5, el, 5 );
selection.setTo( range, { backward: true } );
expect( selection.isBackward ).to.be.false;
} );
} );
describe( 'getRanges', () => {
it( 'should return iterator with copies of all ranges', () => {
selection.setTo( [ range1, range2 ] );
const iterable = selection.getRanges();
const ranges = Array.from( iterable );
expect( ranges.length ).to.equal( 2 );
expect( ranges[ 0 ].isEqual( range1 ) ).to.be.true;
expect( ranges[ 0 ] ).to.not.equal( range1 );
expect( ranges[ 1 ].isEqual( range2 ) ).to.be.true;
expect( ranges[ 1 ] ).to.not.equal( range2 );
} );
} );
describe( 'getFirstRange', () => {
it( 'should return copy of range with first position', () => {
selection.setTo( [ range1, range2, range3 ] );
const range = selection.getFirstRange();
expect( range.isEqual( range2 ) ).to.be.true;
expect( range ).to.not.equal( range2 );
} );
it( 'should return null if no ranges are present', () => {
expect( selection.getFirstRange() ).to.be.null;
} );
} );
describe( 'getLastRange', () => {
it( 'should return copy of range with last position', () => {
selection.setTo( [ range1, range2, range3 ] );
const range = selection.getLastRange();
expect( range.isEqual( range3 ) ).to.be.true;
expect( range ).to.not.equal( range3 );
} );
it( 'should return null if no ranges are present', () => {
expect( selection.getLastRange() ).to.be.null;
} );
} );
describe( 'getFirstPosition', () => {
it( 'should return copy of first position', () => {
selection.setTo( [ range1, range2, range3 ] );
const position = selection.getFirstPosition();
expect( position.isEqual( range2.start ) ).to.be.true;
expect( position ).to.not.equal( range2.start );
} );
it( 'should return null if no ranges are present', () => {
expect( selection.getFirstPosition() ).to.be.null;
} );
} );
describe( 'getLastPosition', () => {
it( 'should return copy of range with last position', () => {
selection.setTo( [ range1, range2, range3 ] );
const position = selection.getLastPosition();
expect( position.isEqual( range3.end ) ).to.be.true;
expect( position ).to.not.equal( range3.end );
} );
it( 'should return null if no ranges are present', () => {
expect( selection.getLastPosition() ).to.be.null;
} );
} );
describe( 'isEqual', () => {
it( 'should return true if selections equal', () => {
selection.setTo( [ range1, range2 ] );
const otherSelection = new Selection();
otherSelection.setTo( [ range1, range2 ] );
expect( selection.isEqual( otherSelection ) ).to.be.true;
} );
it( 'should return true if backward selections equal', () => {
selection.setTo( range1, { backward: true } );
const otherSelection = new Selection( [ range1 ], { backward: true } );
expect( selection.isEqual( otherSelection ) ).to.be.true;
} );
it( 'should return false if ranges count does not equal', () => {
selection.setTo( [ range1, range2 ] );
const otherSelection = new Selection( [ range1 ] );
expect( selection.isEqual( otherSelection ) ).to.be.false;
} );
it( 'should return false if ranges (other than the last added one) do not equal', () => {
selection.setTo( [ range1, range3 ] );
const otherSelection = new Selection( [ range2, range3 ] );
expect( selection.isEqual( otherSelection ) ).to.be.false;
} );
it( 'should return false if directions do not equal', () => {
selection.setTo( range1 );
const otherSelection = new Selection( [ range1 ], { backward: true } );
expect( selection.isEqual( otherSelection ) ).to.be.false;
} );
it( 'should return false if one selection is fake', () => {
const otherSelection = new Selection( null, { fake: true } );
expect( selection.isEqual( otherSelection ) ).to.be.false;
} );
it( 'should return true if both selection are fake', () => {
const otherSelection = new Selection( range1, { fake: true } );
selection.setTo( range1, { fake: true } );
expect( selection.isEqual( otherSelection ) ).to.be.true;
} );
it( 'should return false if both selection are fake but have different label', () => {
const otherSelection = new Selection( [ range1 ], { fake: true, label: 'foo bar baz' } );
selection.setTo( range1, { fake: true, label: 'foo' } );
expect( selection.isEqual( otherSelection ) ).to.be.false;
} );
it( 'should return true if both selections are empty', () => {
const otherSelection = new Selection();
expect( selection.isEqual( otherSelection ) ).to.be.true;
} );
} );
describe( 'isSimilar', () => {
it( 'should return true if selections equal', () => {
selection.setTo( [ range1, range2 ] );
const otherSelection = new Selection( [ range1, range2 ] );
expect( selection.isSimilar( otherSelection ) ).to.be.true;
} );
it( 'should return false if ranges count does not equal', () => {
selection.setTo( [ range1, range2 ] );
const otherSelection = new Selection( [ range1 ] );
expect( selection.isSimilar( otherSelection ) ).to.be.false;
} );
it( 'should return false if trimmed ranges (other than the last added one) are not equal', () => {
selection.setTo( [ range1, range3 ] );
const otherSelection = new Selection( [ range2, range3 ] );
expect( selection.isSimilar( otherSelection ) ).to.be.false;
} );
it( 'should return false if directions are not equal', () => {
selection.setTo( range1 );
const otherSelection = new Selection( [ range1 ], { backward: true } );
expect( selection.isSimilar( otherSelection ) ).to.be.false;
} );
it( 'should return true if both selections are empty', () => {
const otherSelection = new Selection();
expect( selection.isSimilar( otherSelection ) ).to.be.true;
} );
it( 'should return true if all ranges trimmed from both selections are equal', () => {
const view = parse(
'
[{]}
[{xx}]
const rangeA1 = Range._createFromParentsAndOffsets( p1, 0, span1, 0 ); const rangeB1 = Range._createFromParentsAndOffsets( span1, 0, p1, 1 ); const rangeA2 = Range._createFromParentsAndOffsets( p2, 0, p2, 1 ); const rangeB2 = Range._createFromParentsAndOffsets( span2, 0, span2, 1 ); selection.setTo( [ rangeA1, rangeA2 ] ); const otherSelection = new Selection( [ rangeB2, rangeB1 ] ); expect( selection.isSimilar( otherSelection ) ).to.be.true; expect( otherSelection.isSimilar( selection ) ).to.be.true; expect( selection.isEqual( otherSelection ) ).to.be.false; expect( otherSelection.isEqual( selection ) ).to.be.false; } ); } ); describe( 'is()', () => { it( 'should return true for selection', () => { expect( selection.is( 'selection' ) ).to.be.true; expect( selection.is( 'view:selection' ) ).to.be.true; } ); it( 'should return false for other values', () => { expect( selection.is( 'documentSelection' ) ).to.be.false; expect( selection.is( 'view:documentSelection' ) ).to.be.false; expect( selection.is( 'node' ) ).to.be.false; expect( selection.is( '$text' ) ).to.be.false; expect( selection.is( '$textProxy' ) ).to.be.false; expect( selection.is( 'element' ) ).to.be.false; expect( selection.is( 'rootElement' ) ).to.be.false; expect( selection.is( 'model:selection' ) ).to.be.false; } ); } ); describe( 'setTo()', () => { describe( 'simple scenarios', () => { it( 'should set selection ranges from the given selection', () => { selection.setTo( range1 ); const otherSelection = new Selection( [ range2, range3 ], { backward: true } ); selection.setTo( otherSelection ); expect( selection.rangeCount ).to.equal( 2 ); expect( selection._ranges[ 0 ].isEqual( range2 ) ).to.be.true; expect( selection._ranges[ 0 ] ).is.not.equal( range2 ); expect( selection._ranges[ 1 ].isEqual( range3 ) ).to.be.true; expect( selection._ranges[ 1 ] ).is.not.equal( range3 ); expect( selection.anchor.isEqual( range3.end ) ).to.be.true; } ); it( 'should set selection on the given Range', () => { selection.setTo( range1 ); expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range1 ] ); expect( selection.isBackward ).to.be.false; } ); it( 'should set selection on the given iterable of Ranges', () => { selection.setTo( new Set( [ range1, range2 ] ) ); expect( Array.from( selection.getRanges() ) ).to.deep.equal( [ range1, range2 ] ); expect( selection.isBackward ).to.be.false; } ); it( 'should set collapsed selection on the given Position', () => { selection.setTo( range1.start ); expect( Array.from( selection.getRanges() ).length ).to.equal( 1 ); expect( Array.from( selection.getRanges() )[ 0 ].start ).to.deep.equal( range1.start ); expect( selection.isBackward ).to.be.false; expect( selection.isCollapsed ).to.be.true; } ); it( 'should fire change event', done => { selection.on( 'change', () => { expect( selection.rangeCount ).to.equal( 1 ); expect( selection.getFirstRange().isEqual( range1 ) ).to.be.true; done(); } ); const otherSelection = new Selection( [ range1 ] ); selection.setTo( otherSelection ); } ); it( 'should set fake state and label', () => { const label = 'foo bar baz'; const otherSelection = new Selection( null, { fake: true, label } ); selection.setTo( otherSelection ); expect( selection.isFake ).to.be.true; expect( selection.fakeSelectionLabel ).to.equal( label ); } ); it( 'should throw an error when trying to set to not selectable', () => { const otherSelection = new Selection(); expectToThrowCKEditorError( () => { otherSelection.setTo( {} ); }, 'view-selection-setto-not-selectable' ); } ); it( 'should throw an error when trying to set to not selectable #2', () => { const otherSelection = new Selection(); expectToThrowCKEditorError( () => { otherSelection.setTo(); }, 'view-selection-setto-not-selectable' ); } ); } ); describe( 'setting collapsed selection', () => { beforeEach( () => { selection.setTo( [ range1, range2 ] ); } ); it( 'should collapse selection at position', () => { const position = new Position( el, 4 ); selection.setTo( position ); const range = selection.getFirstRange(); expect( range.start.parent ).to.equal( el ); expect( range.start.offset ).to.equal( 4 ); expect( range.start.isEqual( range.end ) ).to.be.true; } ); it( 'should collapse selection at node and offset', () => { const foo = new Text( viewDocument, 'foo' ); const p = new Element( viewDocument, 'p', null, foo ); selection.setTo( foo, 0 ); let range = selection.getFirstRange(); expect( range.start.parent ).to.equal( foo ); expect( range.start.offset ).to.equal( 0 ); expect( range.start.isEqual( range.end ) ).to.be.true; selection.setTo( p, 1 ); range = selection.getFirstRange(); expect( range.start.parent ).to.equal( p ); expect( range.start.offset ).to.equal( 1 ); expect( range.start.isEqual( range.end ) ).to.be.true; } ); it( 'should throw an error when the second parameter is not passed and first is an item', () => { const foo = new Text( viewDocument, 'foo' ); expectToThrowCKEditorError( () => { selection.setTo( foo ); }, 'view-selection-setto-required-second-parameter' ); } ); it( 'should collapse selection at node and flag', () => { const foo = new Text( viewDocument, 'foo' ); const p = new Element( viewDocument, 'p', null, foo ); selection.setTo( foo, 'end' ); let range = selection.getFirstRange(); expect( range.start.parent ).to.equal( foo ); expect( range.start.offset ).to.equal( 3 ); expect( range.start.isEqual( range.end ) ).to.be.true; selection.setTo( foo, 'before' ); range = selection.getFirstRange(); expect( range.start.parent ).to.equal( p ); expect( range.start.offset ).to.equal( 0 ); expect( range.start.isEqual( range.end ) ).to.be.true; selection.setTo( foo, 'after' ); range = selection.getFirstRange(); expect( range.start.parent ).to.equal( p ); expect( range.start.offset ).to.equal( 1 ); expect( range.start.isEqual( range.end ) ).to.be.true; } ); } ); describe( 'setting collapsed selection at start', () => { it( 'should collapse to start position and fire change event', done => { selection.setTo( [ range1, range2, range3 ] ); selection.once( 'change', () => { expect( selection.rangeCount ).to.equal( 1 ); expect( selection.isCollapsed ).to.be.true; expect( selection._ranges[ 0 ].start.isEqual( range2.start ) ).to.be.true; done(); } ); selection.setTo( selection.getFirstPosition() ); } ); } ); describe( 'setting collapsed selection to end', () => { it( 'should collapse to end position and fire change event', done => { selection.setTo( [ range1, range2, range3 ] ); selection.once( 'change', () => { expect( selection.rangeCount ).to.equal( 1 ); expect( selection.isCollapsed ).to.be.true; expect( selection._ranges[ 0 ].end.isEqual( range3.end ) ).to.be.true; done(); } ); selection.setTo( selection.getLastPosition() ); } ); } ); describe( 'removing all ranges', () => { it( 'should remove all ranges and fire change event', done => { selection.setTo( [ range1, range2 ] ); selection.once( 'change', () => { expect( selection.rangeCount ).to.equal( 0 ); done(); } ); selection.setTo( null ); } ); } ); describe( 'setting fake selection', () => { it( 'should allow to set selection to fake', () => { selection.setTo( range1, { fake: true } ); expect( selection.isFake ).to.be.true; } ); it( 'should allow to set fake selection label', () => { const label = 'foo bar baz'; selection.setTo( range1, { fake: true, label } ); expect( selection.fakeSelectionLabel ).to.equal( label ); } ); it( 'should not set label when set to false', () => { const label = 'foo bar baz'; selection.setTo( range1, { fake: false, label } ); expect( selection.fakeSelectionLabel ).to.equal( '' ); } ); it( 'should reset label when set to false', () => { const label = 'foo bar baz'; selection.setTo( range1, { fake: true, label } ); selection.setTo( range1 ); expect( selection.fakeSelectionLabel ).to.equal( '' ); } ); it( 'should fire change event', done => { selection.once( 'change', () => { expect( selection.isFake ).to.be.true; expect( selection.fakeSelectionLabel ).to.equal( 'foo bar baz' ); done(); } ); selection.setTo( range1, { fake: true, label: 'foo bar baz' } ); } ); it( 'should be possible to create an empty fake selection', () => { selection.setTo( null, { fake: true, label: 'foo bar baz' } ); expect( selection.fakeSelectionLabel ).to.equal( 'foo bar baz' ); expect( selection.isFake ).to.be.true; } ); } ); describe( 'setting selection to itself', () => { it( 'should correctly set ranges when setting to the same selection', () => { selection.setTo( [ range1, range2 ] ); selection.setTo( selection ); const ranges = Array.from( selection.getRanges() ); expect( ranges.length ).to.equal( 2 ); expect( ranges[ 0 ].isEqual( range1 ) ).to.be.true; expect( ranges[ 1 ].isEqual( range2 ) ).to.be.true; } ); it( 'should correctly set ranges when setting to the same selection\'s ranges', () => { selection.setTo( [ range1, range2 ] ); selection.setTo( selection.getRanges() ); const ranges = Array.from( selection.getRanges() ); expect( ranges.length ).to.equal( 2 ); expect( ranges[ 0 ].isEqual( range1 ) ).to.be.true; expect( ranges[ 1 ].isEqual( range2 ) ).to.be.true; } ); } ); describe( 'throwing errors', () => { it( 'should throw an error when range is invalid', () => { expectToThrowCKEditorError( () => { selection.setTo( [ { invalid: 'range' } ] ); }, /view-selection-add-range-not-range/ ); } ); it( 'should throw when range is intersecting with already added range', () => { const text = el.getChild( 0 ); const range2 = Range._createFromParentsAndOffsets( text, 7, text, 15 ); expectToThrowCKEditorError( () => { selection.setTo( [ range1, range2 ] ); }, 'view-selection-range-intersects' ); } ); } ); it( 'should allow setting selection on an item', () => { const textNode1 = new Text( viewDocument, 'foo' ); const textNode2 = new Text( viewDocument, 'bar' ); const textNode3 = new Text( viewDocument, 'baz' ); const element = new Element( viewDocument, 'p', null, [ textNode1, textNode2, textNode3 ] ); selection.setTo( textNode2, 'on' ); const ranges = Array.from( selection.getRanges() ); expect( ranges.length ).to.equal( 1 ); expect( ranges[ 0 ].start.parent ).to.equal( element ); expect( ranges[ 0 ].start.offset ).to.deep.equal( 1 ); expect( ranges[ 0 ].end.parent ).to.equal( element ); expect( ranges[ 0 ].end.offset ).to.deep.equal( 2 ); } ); it( 'should allow setting selection inside an element', () => { const element = new Element( viewDocument, 'p', null, [ new Text( viewDocument, 'foo' ), new Text( viewDocument, 'bar' ) ] ); selection.setTo( element, 'in' ); const ranges = Array.from( selection.getRanges() ); expect( ranges.length ).to.equal( 1 ); expect( ranges[ 0 ].start.parent ).to.equal( element ); expect( ranges[ 0 ].start.offset ).to.deep.equal( 0 ); expect( ranges[ 0 ].end.parent ).to.equal( element ); expect( ranges[ 0 ].end.offset ).to.deep.equal( 2 ); } ); it( 'should allow setting backward selection inside an element', () => { const element = new Element( viewDocument, 'p', null, [ new Text( viewDocument, 'foo' ), new Text( viewDocument, 'bar' ) ] ); selection.setTo( element, 'in', { backward: true } ); const ranges = Array.from( selection.getRanges() ); expect( ranges.length ).to.equal( 1 ); expect( ranges[ 0 ].start.parent ).to.equal( element ); expect( ranges[ 0 ].start.offset ).to.deep.equal( 0 ); expect( ranges[ 0 ].end.parent ).to.equal( element ); expect( ranges[ 0 ].end.offset ).to.deep.equal( 2 ); expect( selection.isBackward ).to.be.true; } ); } ); describe( 'getEditableElement()', () => { it( 'should return null if no ranges in selection', () => { expect( selection.editableElement ).to.be.null; } ); it( 'should return null if selection is placed in container that is not EditableElement', () => { selection.setTo( range1 ); expect( selection.editableElement ).to.be.null; } ); it( 'should return EditableElement when selection is placed inside', () => { selection.setTo( viewDocument.selection ); const root = createViewRoot( viewDocument, 'div', 'main' ); const element = new Element( viewDocument, 'p' ); root._appendChild( element ); selection.setTo( Range._createFromParentsAndOffsets( element, 0, element, 0 ) ); expect( selection.editableElement ).to.equal( root ); } ); } ); describe( 'isFake', () => { it( 'should be false for newly created instance', () => { expect( selection.isFake ).to.be.false; } ); } ); describe( 'getSelectedElement()', () => { it( 'should return selected element', () => { const { selection: docSelection, view } = parse( 'foo [bar] baz' ); const b = view.getChild( 1 ); const selection = new Selection( docSelection ); expect( selection.getSelectedElement() ).to.equal( b ); } ); it( 'should return selected element if the selection is anchored at the end/at the beginning of a text node', () => { const { selection: docSelection, view } = parse( 'foo {bar} baz' ); const b = view.getChild( 1 ); const selection = new Selection( docSelection ); expect( selection.getSelectedElement() ).to.equal( b ); } ); it( 'should return null if there is more than one range', () => { const { selection: docSelection } = parse( 'foo [bar] [baz]' ); const selection = new Selection( docSelection ); expect( selection.getSelectedElement() ).to.be.null; } ); it( 'should return null if there is no selection', () => { expect( selection.getSelectedElement() ).to.be.null; } ); it( 'should return null if selection is not over single element #1', () => { const { selection: docSelection } = parse( 'foo [bar ba}z' ); const selection = new Selection( docSelection ); expect( selection.getSelectedElement() ).to.be.null; } ); it( 'should return null if selection is not over single element #2', () => { const { selection: docSelection } = parse( 'foo {bar} baz' ); const selection = new Selection( docSelection ); expect( selection.getSelectedElement() ).to.be.null; } ); } ); } );