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- /**
- * @license Copyright (c) 2003-2020, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
- */
- /* global window, document, console, BalloonEditor */
- const maxCharacters = 120;
- const container = document.querySelector( '.demo-update' );
- const progressCircle = document.querySelector( '.demo-update__chart__circle' );
- const charactersBox = document.querySelector( '.demo-update__chart__characters' );
- const wordsBox = document.querySelector( '.demo-update__words' );
- const circleCircumference = Math.floor( 2 * Math.PI * progressCircle.getAttribute( 'r' ) );
- const sendButton = document.querySelector( '.demo-update__send' );
- sendButton.addEventListener( 'click', () => {
- window.alert( 'Post sent!' ); // eslint-disable-line no-alert
- } );
- BalloonEditor
- .create( document.querySelector( '#demo-update__editor' ), {
- toolbar: {
- items: [
- 'heading',
- '|',
- 'bold',
- 'italic',
- 'bulletedList',
- 'numberedList',
- '|',
- 'outdent',
- 'indent',
- '|',
- 'blockQuote',
- 'link',
- '|',
- 'mediaEmbed',
- 'insertTable',
- '|',
- 'undo',
- 'redo'
- ],
- viewportTopOffset: window.getViewportTopOffsetConfig()
- },
- placeholder: 'Text of the post',
- table: {
- contentToolbar: [ 'tableColumn', 'tableRow', 'mergeTableCells' ]
- },
- wordCount: {
- onUpdate: stats => {
- const charactersProgress = stats.characters / maxCharacters * circleCircumference;
- const isLimitExceeded = stats.characters > maxCharacters;
- const isCloseToLimit = !isLimitExceeded && stats.characters > maxCharacters * .8;
- const circleDashArray = Math.min( charactersProgress, circleCircumference );
- // Set the stroke of the circle to show how many characters were typed.
- progressCircle.setAttribute( 'stroke-dasharray', `${ circleDashArray },${ circleCircumference }` );
- // Display the number of characters in the progress chart. When the limit is exceeded,
- // display how many characters should be removed.
- if ( isLimitExceeded ) {
- charactersBox.textContent = `-${ stats.characters - maxCharacters }`;
- } else {
- charactersBox.textContent = stats.characters;
- }
- wordsBox.textContent = `Words in the post: ${ stats.words }`;
- // If the content length is close to the characters limit, add a CSS class to warn the user.
- container.classList.toggle( 'demo-update__limit-close', isCloseToLimit );
- // If the character limit is exceeded, add a CSS class that makes the content's background red.
- container.classList.toggle( 'demo-update__limit-exceeded', isLimitExceeded );
- // If the character limit is exceeded, disable the send button.
- sendButton.toggleAttribute( 'disabled', isLimitExceeded );
- }
- }
- } )
- .catch( err => {
- console.error( err.stack );
- } );
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