@ckeditor/ckeditor5-table/src/tableproperties/commands/tablepropertycommand.js

/**
 * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
import { Command } from 'ckeditor5/src/core';
/**
 * The table cell attribute command.
 *
 * This command is a base command for other table property commands.
 */
export default class TablePropertyCommand extends Command {
    /**
     * Creates a new `TablePropertyCommand` instance.
     *
     * @param editor An editor in which this command will be used.
     * @param attributeName Table cell attribute name.
     * @param defaultValue The default value of the attribute.
     */
    constructor(editor, attributeName, defaultValue) {
        super(editor);
        this.attributeName = attributeName;
        this._defaultValue = defaultValue;
    }
    /**
     * @inheritDoc
     */
    refresh() {
        const editor = this.editor;
        const selection = editor.model.document.selection;
        const table = selection.getFirstPosition().findAncestor('table');
        this.isEnabled = !!table;
        this.value = this._getValue(table);
    }
    /**
     * Executes the command.
     *
     * @fires execute
     * @param options.value If set, the command will set the attribute on the selected table.
     * If not set, the command will remove the attribute from the selected table.
     * @param options.batch Pass the model batch instance to the command to aggregate changes,
     * for example, to allow a single undo step for multiple executions.
     */
    execute(options = {}) {
        const model = this.editor.model;
        const selection = model.document.selection;
        const { value, batch } = options;
        const table = selection.getFirstPosition().findAncestor('table');
        const valueToSet = this._getValueToSet(value);
        model.enqueueChange(batch, writer => {
            if (valueToSet) {
                writer.setAttribute(this.attributeName, valueToSet, table);
            }
            else {
                writer.removeAttribute(this.attributeName, table);
            }
        });
    }
    /**
     * Returns the attribute value for a table.
     */
    _getValue(table) {
        if (!table) {
            return;
        }
        const value = table.getAttribute(this.attributeName);
        if (value === this._defaultValue) {
            return;
        }
        return value;
    }
    /**
     * Returns the proper model value. It can be used to add a default unit to numeric values.
     */
    _getValueToSet(value) {
        if (value === this._defaultValue) {
            return;
        }
        return value;
    }
}