ckeditor5-image-upload-base64
Version:
The development environment of CKEditor 5 – the best browser-based rich text editor.
61 lines (53 loc) • 2.05 kB
JavaScript
/**
* @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module typing/utils/getlasttextline
*/
/**
* Returns the last text line from the given range.
*
* "The last text line" is understood as text (from one or more text nodes) which is limited either by a parent block
* or by inline elements (e.g. `<softBreak>`).
*
* const rangeToCheck = model.createRange(
* model.createPositionAt( paragraph, 0 ),
* model.createPositionAt( paragraph, 'end' )
* );
*
* const { text, range } = getLastTextLine( rangeToCheck, model );
*
* For model below, the returned `text` will be "Foo bar baz" and `range` will be set on whole `<paragraph>` content:
*
* <paragraph>Foo bar baz<paragraph>
*
* However, in below case, `text` will be set to "baz" and `range` will be set only on "baz".
*
* <paragraph>Foo<softBreak></softBreak>bar<softBreak></softBreak>baz<paragraph>
*
* @protected
* @param {module:engine/model/range~Range} range
* @param {module:engine/model/model~Model} model
* @returns {module:typing/utils/getlasttextline~LastTextLineData}
*/
export default function getLastTextLine( range, model ) {
let start = range.start;
const text = Array.from( range.getItems() ).reduce( ( rangeText, node ) => {
// Trim text to a last occurrence of an inline element and update range start.
if ( !( node.is( '$text' ) || node.is( '$textProxy' ) ) ) {
start = model.createPositionAfter( node );
return '';
}
return rangeText + node.data;
}, '' );
return { text, range: model.createRange( start, range.end ) };
}
/**
* The value returned by {@link module:typing/utils/getlasttextline~getLastTextLine}.
*
* @typedef {Object} module:typing/utils/getlasttextline~LastTextLineData
*
* @property {String} text The text from the text nodes in the last text line.
* @property {module:engine/model/range~Range} range The range set on the text nodes in the last text line.
*/