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inserttableview.js
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inserttableview.js
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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
*/
/**
* @module table/ui/inserttableview
*/
import View from '@ckeditor/ckeditor5-ui/src/view';
import './../../theme/inserttable.css';
/**
* The table size view.
*
* It renders a 10x10 grid to choose the inserted table size.
*
* @extends module:ui/view~View
* @implements module:ui/dropdown/dropdownpanelfocusable~DropdownPanelFocusable
*/
export default class InsertTableView extends View {
/**
* @inheritDoc
*/
constructor( locale ) {
super( locale );
const bind = this.bindTemplate;
/**
* A collection of table size box items.
*
* @readonly
* @member {module:ui/viewcollection~ViewCollection}
*/
this.items = this._createGridCollection();
/**
* The currently selected number of rows of the new table.
*
* @observable
* @member {Number} #rows
*/
this.set( 'rows', 0 );
/**
* The currently selected number of columns of the new table.
*
* @observable
* @member {Number} #columns
*/
this.set( 'columns', 0 );
/**
* The label text displayed under the boxes.
*
* @observable
* @member {String} #label
*/
this.bind( 'label' )
.to( this, 'columns', this, 'rows', ( columns, rows ) => `${ rows } × ${ columns }` );
this.setTemplate( {
tag: 'div',
attributes: {
class: [ 'ck' ]
},
children: [
{
tag: 'div',
attributes: {
class: [ 'ck-insert-table-dropdown__grid' ]
},
on: {
'mouseover@.ck-insert-table-dropdown-grid-box': bind.to( 'boxover' )
},
children: this.items
},
{
tag: 'div',
attributes: {
class: [ 'ck-insert-table-dropdown__label' ]
},
children: [
{
text: bind.to( 'label' )
}
]
}
],
on: {
mousedown: bind.to( evt => {
evt.preventDefault();
} ),
click: bind.to( () => {
this.fire( 'execute' );
} )
}
} );
this.on( 'boxover', ( evt, domEvt ) => {
const { row, column } = domEvt.target.dataset;
// As row & column indexes are zero-based transform it to number of selected rows & columns.
this.set( {
rows: parseInt( row ),
columns: parseInt( column )
} );
} );
this.on( 'change:columns', () => {
this._highlightGridBoxes();
} );
this.on( 'change:rows', () => {
this._highlightGridBoxes();
} );
}
/**
* @inheritDoc
*/
focus() {
// The dropdown panel expects DropdownPanelFocusable interface on views passed to dropdown panel. See #30.
// The method should be implemented while working on keyboard support for this view. See #22.
}
/**
* @inheritDoc
*/
focusLast() {
// The dropdown panel expects DropdownPanelFocusable interface on views passed to dropdown panel. See #30.
// The method should be implemented while working on keyboard support for this view. See #22.
}
/**
* Highlights grid boxes depending on rows and columns selected.
*
* @private
*/
_highlightGridBoxes() {
const rows = this.rows;
const columns = this.columns;
this.items.map( ( boxView, index ) => {
// Translate box index to the row & column index.
const itemRow = Math.floor( index / 10 );
const itemColumn = index % 10;
// Grid box is highlighted when its row & column index belongs to selected number of rows & columns.
const isOn = itemRow < rows && itemColumn < columns;
boxView.set( 'isOn', isOn );
} );
}
/**
* @private
* @returns {module:ui/viewcollection~ViewCollection} A view collection containing boxes to be placed in a table grid.
*/
_createGridCollection() {
const boxes = [];
// Add grid boxes to table selection view.
for ( let index = 0; index < 100; index++ ) {
const row = Math.floor( index / 10 );
const column = index % 10;
boxes.push( new TableSizeGridBoxView( this.locale, row + 1, column + 1 ) );
}
return this.createCollection( boxes );
}
/**
* Fired when the mouse hover over one of the {@link #items child grid boxes}.
*
* @event boxover
*/
}
/**
* A single grid box view element.
*
* This class is used to render the table size selection grid in {@link module:table/ui/inserttableview~InsertTableView}.
*
* @private
*/
class TableSizeGridBoxView extends View {
/**
* @inheritDoc
*/
constructor( locale, row, column ) {
super( locale );
const bind = this.bindTemplate;
/**
* Controls whether the grid box view is "on".
*
* @observable
* @member {Boolean} #isOn
*/
this.set( 'isOn', false );
this.setTemplate( {
tag: 'div',
attributes: {
class: [
'ck-insert-table-dropdown-grid-box',
bind.if( 'isOn', 'ck-on' )
],
'data-row': row,
'data-column': column
}
} );
}
}