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- /**
- * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
- */
- import Feature from '../core/feature.js';
- import ImageEngine from './imageengine.js';
- import ViewRange from '../engine/view/range.js';
- import ModelLiveRange from '../engine/model/liverange.js';
- import ModelRange from '../engine/model/range.js';
- import ViewPosition from '../engine/view/position.js';
- import ViewSelection from '../engine/view/selection.js';
- import MouseDownObserver from './mousedownobserver.js';
- export default class Image extends Feature {
- /**
- * @inheritDoc
- */
- static get requires() {
- return [ ImageEngine ];
- }
- init() {
- const editor = this.editor;
- const modelDocument = editor.document;
- const viewDocument = editor.editing.view;
- const editingPipeline = editor.editing;
- const selected = new Set();
- // Prevent selection change on mousedown.
- viewDocument.addObserver( MouseDownObserver );
- viewDocument.on( 'mousedown', ( eventInfo, domEventData ) => {
- const target = domEventData.target;
- if ( isImageWidget( target ) ) {
- domEventData.preventDefault();
- if ( !viewDocument.isFocused ) {
- viewDocument.focus();
- }
- const viewRange = ViewRange.createOn( target );
- const modelRange = ModelLiveRange.createFromRange( editingPipeline.mapper.toModelRange( viewRange ) );
- modelDocument.enqueueChanges( ( ) => {
- modelDocument.selection.setRanges( [ modelRange ] );
- } );
- }
- } );
- // Handle selection placing inside figure - convert it to selecting whole image widget.
- viewDocument.on( 'selectionChange', ( eventInfo, data ) => {
- const newSelection = data.newSelection;
- if ( newSelection.rangeCount && newSelection.getFirstPosition().parent.name == 'figure' ) {
- eventInfo.stop();
- const viewRange = ViewRange.createOn( newSelection.getFirstPosition().parent );
- const modelRange = ModelLiveRange.createFromRange( editingPipeline.mapper.toModelRange( viewRange ) );
- modelDocument.enqueueChanges( ( ) => {
- modelDocument.selection.setRanges( [ modelRange ] );
- } );
- }
- }, { priority: 'high' } );
- viewDocument.on( 'keydown', ( eventInfo, data ) => {
- const viewSelection = viewDocument.selection;
- if ( viewSelection.isFake && !viewSelection.isCollapsed && viewSelection.rangeCount == 1 ) {
- const nodeAfter = viewSelection.anchor.nodeAfter;
- const nodeBefore = viewSelection.focus.nodeBefore;
- if ( nodeAfter === nodeBefore && isImageWidget( nodeAfter ) ) {
- // Stop to prevent default fake selection handling.
- eventInfo.stop();
- // Prevent selection change.
- data.preventDefault();
- if ( data.keyCode == 39 || data.keyCode == 40 ) {
- // TODO: Check if sibling exists.
- // const modelElement = editingPipeline.mapper.toModelElement( nodeAfter.nextSibling );
- // const modelPosition = ModelPosition.createAt( modelElement );
- // const modelRange = new ModelLiveRange( modelPosition );
- //
- // modelDocument.enqueueChanges( () => {
- // modelDocument.selection.setRanges( [ modelRange ] );
- // } );
- const viewPosition = ViewPosition.createAt( nodeAfter.nextSibling );
- const viewRange = new ViewRange( viewPosition );
- const newSelection = new ViewSelection();
- newSelection.addRange( viewRange );
- viewDocument.fire( 'selectionChange', {
- oldSelection: viewDocument.selection,
- newSelection: newSelection,
- domSelection: null
- } );
- }
- if ( data.keyCode == 37 || data.keyCode == 38 ) {
- // const modelElement = editingPipeline.mapper.toModelElement( nodeAfter.previousSibling );
- // const modelPosition = ModelPosition.createAt( modelElement, 'end' );
- // const modelRange = new ModelLiveRange( modelPosition );
- //
- // modelDocument.enqueueChanges( () => {
- // modelDocument.selection.setRanges( [ modelRange ] );
- // } );
- const viewPosition = ViewPosition.createAt( nodeAfter.previousSibling, 'end' );
- const viewRange = new ViewRange( viewPosition );
- const newSelection = new ViewSelection();
- newSelection.addRange( viewRange );
- viewDocument.fire( 'selectionChange', {
- oldSelection: viewDocument.selection,
- newSelection: newSelection,
- domSelection: null
- } );
- }
- }
- }
- } );
- // Handle selection conversion.
- editingPipeline.modelToView.on( 'selection', ( evt, data, consumable, conversionApi ) => {
- const viewSelection = conversionApi.viewSelection;
- const range = data.selection.getFirstRange();
- const nodeAfterStart = range.start.nodeAfter;
- // remove selection from all selected widgets
- for ( let viewElement of selected ) {
- viewElement.removeClass( 'selected' );
- }
- // This could be just one element instead of set.
- selected.clear();
- if ( !data.selection.isCollapsed && nodeAfterStart && nodeAfterStart.name == 'image' && ModelRange.createOn( nodeAfterStart ).isEqual( range ) ) {
- viewSelection.setFake( true, { label: 'image fake selection' } );
- const viewElement = conversionApi.mapper.toViewElement( nodeAfterStart );
- viewElement.addClass( 'selected' );
- selected.add( viewElement );
- }
- }, { priority: 'low' } );
- }
- }
- function isImageWidget( viewElement ) {
- // TODO: check CSS class.
- return viewElement.isWidget && viewElement.name == 'figure' && viewElement.hasClass( 'image' );
- }
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