/*************************************************************
 *
 *  Copyright (c) 2017 The MathJax Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @fileoverview  Implements the CHTMLmtr wrapper for the MmlMtr object
 *                and CHTMLmlabeledtr for MmlMlabeledtr
 *
 * @author dpvc@mathjax.org (Davide Cervone)
 */

import {CHTMLWrapper, CHTMLConstructor, Constructor} from '../Wrapper.js';
import {CommonMtr, CommonMtrMixin} from '../../common/Wrappers/mtr.js';
import {CommonMlabeledtr, CommonMlabeledtrMixin} from '../../common/Wrappers/mtr.js';
import {CHTMLmtable} from './mtable.js';
import {CHTMLmtd} from './mtd.js';
import {MmlMtr, MmlMlabeledtr} from '../../../core/MmlTree/MmlNodes/mtr.js';
import {StyleList} from '../../common/CssStyles.js';

/*****************************************************************/
/**
 * The CHTMLmtr wrapper for the MmlMtr object
 *
 * @template N  The HTMLElement node class
 * @template T  The Text node class
 * @template D  The Document class
 */
export class CHTMLmtr<N, T, D> extends CommonMtrMixin<CHTMLmtd<any, any, any>, CHTMLConstructor<any, any, any>>(CHTMLWrapper) {

    public static kind = MmlMtr.prototype.kind;

    public static styles: StyleList = {
        'mjx-mtr': {
            display: 'table-row',
        },
        'mjx-mtr[rowalign="top"] > mjx-mtd': {
            'vertical-align': 'top'
        },
        'mjx-mtr[rowalign="center"] > mjx-mtd': {
            'vertical-align': 'middle'
        },
        'mjx-mtr[rowalign="bottom"] > mjx-mtd': {
            'vertical-align': 'bottom'
        },
        'mjx-mtr[rowalign="baseline"] > mjx-mtd': {
            'vertical-align': 'baseline'
        },
        'mjx-mtr[rowalign="axis"] > mjx-mtd': {
            'vertical-align': '.25em'
        }
    };

    /**
     * @override
     */
    public toCHTML(parent: N) {
        super.toCHTML(parent);
        const align = this.node.attributes.get('rowalign') as string;
        if (align !== 'baseline') {
            this.adaptor.setAttribute(this.chtml, 'rowalign', align);
        }
    }

}

/*****************************************************************/
/**
 * The CHTMLlabeledmtr wrapper for the MmlMlabeledtr object
 *
 * @template N  The HTMLElement node class
 * @template T  The Text node class
 * @template D  The Document class
 */
export class CHTMLmlabeledtr<N, T, D> extends
CommonMlabeledtrMixin<CHTMLmtd<any, any, any>, Constructor<CHTMLmtr<any, any, any>>>(CHTMLmtr) {

    public static kind = MmlMlabeledtr.prototype.kind;

    public static styles: StyleList = {
        'mjx-mlabeledtr': {
            display: 'table-row'
        },
        'mjx-mlabeledtr[rowalign="top"] > mjx-mtd': {
            'vertical-align': 'top'
        },
        'mjx-mlabeledtr[rowalign="center"] > mjx-mtd': {
            'vertical-align': 'middle'
        },
        'mjx-mlabeledtr[rowalign="bottom"] > mjx-mtd': {
            'vertical-align': 'bottom'
        },
        'mjx-mlabeledtr[rowalign="baseline"] > mjx-mtd': {
            'vertical-align': 'baseline'
        },
        'mjx-mlabeledtr[rowalign="axis"] > mjx-mtd': {
            'vertical-align': '.25em'
        }
    };

    /**
     * @override
     */
    public toCHTML(parent: N) {
        super.toCHTML(parent);
        const child = this.adaptor.firstChild(this.chtml) as N;
        if (child) {
            //
            // Remove label and put it into the labels box inside a row
            //
            this.adaptor.remove(child);
            const align = this.node.attributes.get('rowalign') as string;
            const attr = (align !== 'baseline' && align !== 'axis' ? {rowalign: align} : {});
            const row = this.html('mjx-mtr', attr, [child]);
            this.adaptor.append((this.parent as CHTMLmtable<N, T, D>).labels, row);
        }
    }

}