wikimedia/mediawiki-core

View on GitHub
includes/skins/BaseTemplate.php

Summary

Maintainability
C
1 day
Test Coverage
<?php
/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 */

use MediaWiki\Html\Html;
use MediaWiki\Message\Message;
use MediaWiki\Parser\Sanitizer;

/**
 * Extended QuickTemplate with additional MediaWiki-specific helper methods.
 *
 * @todo Phase this class out and make it an alias for QuickTemplate. Move methods
 *  individually as-appropriate either down to QuickTemplate, or (with deprecation)
 *  up to SkinTemplate.
 *
 * @stable to extend
 */
abstract class BaseTemplate extends QuickTemplate {

    /**
     * Get a Message object with its context set
     *
     * @param string $name Message name
     * @param mixed ...$params Message params
     * @return Message
     */
    public function getMsg( $name, ...$params ) {
        return $this->getSkin()->msg( $name, ...$params );
    }

    public function msg( $str ) {
        echo $this->getMsg( $str )->escaped();
    }

    /**
     * @return array
     */
    public function getPersonalTools() {
        return $this->getSkin()->getPersonalToolsForMakeListItem( $this->get( 'personal_urls' ) );
    }

    /**
     * @param array $options (optional) allows disabling certain sidebar elements.
     *  The keys `search`, `toolbox` and `languages` are accepted.
     * @return array representing the sidebar
     */
    protected function getSidebar( $options = [] ) {
        // Force the rendering of the following portals
        $sidebar = $this->data['sidebar'];
        if ( !isset( $sidebar['SEARCH'] ) ) {
            // @phan-suppress-next-line PhanTypeMismatchDimAssignment False positive
            $sidebar['SEARCH'] = true;
        }
        if ( !isset( $sidebar['TOOLBOX'] ) ) {
            $sidebar['TOOLBOX'] = true;
        }
        if ( !isset( $sidebar['LANGUAGES'] ) ) {
            $sidebar['LANGUAGES'] = true;
        }

        if ( !isset( $options['search'] ) || $options['search'] !== true ) {
            unset( $sidebar['SEARCH'] );
        }
        if ( isset( $options['toolbox'] ) && $options['toolbox'] === false ) {
            unset( $sidebar['TOOLBOX'] );
        }
        if ( isset( $options['languages'] ) && $options['languages'] === false ) {
            unset( $sidebar['LANGUAGES'] );
        }

        $boxes = [];
        foreach ( $sidebar as $boxName => $content ) {
            if ( $content === false ) {
                continue;
            }
            switch ( $boxName ) {
                case 'SEARCH':
                    // Search is a special case, skins should custom implement this
                    $boxes[$boxName] = [
                        'id' => 'p-search',
                        'header' => $this->getMsg( 'search' )->text(),
                        'generated' => false,
                        'content' => true,
                    ];
                    break;
                case 'TOOLBOX':
                    $msgObj = $this->getMsg( 'toolbox' );
                    $boxes[$boxName] = [
                        'id' => 'p-tb',
                        'header' => $msgObj->exists() ? $msgObj->text() : 'toolbox',
                        'generated' => false,
                        'content' => $content,
                    ];
                    break;
                case 'LANGUAGES':
                    if ( $this->data['language_urls'] !== false ) {
                        $msgObj = $this->getMsg( 'otherlanguages' );
                        $boxes[$boxName] = [
                            'id' => 'p-lang',
                            'header' => $msgObj->exists() ? $msgObj->text() : 'otherlanguages',
                            'generated' => false,
                            'content' => $this->data['language_urls'] ?: [],
                        ];
                    }
                    break;
                default:
                    $msgObj = $this->getMsg( $boxName );
                    $boxes[$boxName] = [
                        'id' => "p-$boxName",
                        'header' => $msgObj->exists() ? $msgObj->text() : $boxName,
                        'generated' => true,
                        'content' => $content,
                    ];
                    break;
            }
        }

        if ( isset( $options['htmlOnly'] ) && $options['htmlOnly'] === true ) {
            foreach ( $boxes as $boxName => $box ) {
                if ( is_array( $box['content'] ) ) {
                    $content = '<ul>';
                    foreach ( $box['content'] as $key => $val ) {
                        $content .= "\n    " . $this->getSkin()->makeListItem( $key, $val );
                    }
                    $content .= "\n</ul>\n";
                    $boxes[$boxName]['content'] = $content;
                }
            }
        }

        return $boxes;
    }

    /**
     * Wrapper for Skin method.
     *
     * @param string $key of link
     * @param array $item to render
     * @param array $options for link
     * @return string
     */
    protected function makeLink( $key, $item, $options = [] ) {
        return $this->getSkin()->makeLink( $key, $item, $options );
    }

    /**
     * Wrapper for Skin method.
     *
     * @param string $key of list item
     * @param array $item to render
     * @param array $options for list item
     * @return string
     */
    public function makeListItem( $key, $item, $options = [] ) {
        return $this->getSkin()->makeListItem( $key, $item, $options );
    }

    /**
     * Wrapper for Skin method.
     *
     * @param array $attrs
     * @return string
     */
    protected function makeSearchInput( $attrs = [] ) {
        return $this->getSkin()->makeSearchInput( $attrs );
    }

    /**
     * Wrapper for Skin method.
     *
     * @param string $mode
     * @param array $attrs
     * @return string
     */
    protected function makeSearchButton( $mode, $attrs = [] ) {
        return $this->getSkin()->makeSearchButton( $mode, $attrs );
    }

    /**
     * Returns an array of footerlinks trimmed down to only those footer links that
     * are valid.
     * If you pass "flat" as an option then the returned array will be a flat array
     * of footer icons instead of a key/value array of footerlinks arrays broken
     * up into categories.
     * @param string|null $option
     * @return array
     */
    protected function getFooterLinks( $option = null ) {
        $footerlinks = $this->get( 'footerlinks' );

        // Reduce footer links down to only those which are being used
        $validFooterLinks = [];
        foreach ( $footerlinks as $category => $links ) {
            $validFooterLinks[$category] = [];
            foreach ( $links as $link ) {
                if ( isset( $this->data[$link] ) && $this->data[$link] ) {
                    $validFooterLinks[$category][] = $link;
                }
            }
            if ( count( $validFooterLinks[$category] ) <= 0 ) {
                unset( $validFooterLinks[$category] );
            }
        }

        if ( $option == 'flat' && count( $validFooterLinks ) ) {
            // fold footerlinks into a single array using a bit of trickery
            $validFooterLinks = array_merge( ...array_values( $validFooterLinks ) );
        }

        return $validFooterLinks;
    }

    /**
     * Returns an array of footer icons filtered down by options relevant to how
     * the skin wishes to display them.
     * If you pass "icononly" as the option all footer icons which do not have an
     * image icon set will be filtered out.
     * If you pass "nocopyright" then MediaWiki's copyright icon will not be included
     * in the list of footer icons. This is mostly useful for skins which only
     * display the text from footericons instead of the images and don't want a
     * duplicate copyright statement because footerlinks already rendered one.
     * @param string|null $option
     * @deprecated since 1.35 read footer icons from template data requested via
     *     $this->get('footericons')
     * @return array
     */
    protected function getFooterIcons( $option = null ) {
        wfDeprecated( __METHOD__, '1.35' );
        // Generate additional footer icons
        $footericons = $this->get( 'footericons' );

        if ( $option == 'icononly' ) {
            // Unset any icons which don't have an image
            $this->unsetIconsWithoutImages( $footericons );
        } elseif ( $option == 'nocopyright' ) {
            unset( $footericons['copyright'] );
        }

        return $footericons;
    }

    /**
     * Unsets any elements in an array of icon definitions which do
     * not have src attributes or are not strings.
     *
     * @param array &$icons
     */
    private function unsetIconsWithoutImages( array &$icons ) {
        // Unset any icons which don't have an image
        foreach ( $icons as $iconsKey => &$iconsBlock ) {
            foreach ( $iconsBlock as $iconKey => $icon ) {
                if ( !is_string( $icon ) && !isset( $icon['src'] ) ) {
                    unset( $iconsBlock[$iconKey] );
                }
            }
            if ( $iconsBlock === [] ) {
                unset( $icons[$iconsKey] );
            }
        }
    }

    /**
     * Renderer for getFooterIcons and getFooterLinks
     *
     * @param string $iconStyle $option for getFooterIcons: "icononly", "nocopyright"
     *   the "nocopyright" option is deprecated in 1.35 because of its association with getFooterIcons
     * @param string $linkStyle $option for getFooterLinks: "flat"
     *
     * @return string html
     * @since 1.29
     */
    protected function getFooter( $iconStyle = 'icononly', $linkStyle = 'flat' ) {
        $validFooterIcons = $this->get( 'footericons' );
        if ( $iconStyle === 'icononly' ) {
            $this->unsetIconsWithoutImages( $validFooterIcons );
        } else {
            // take a deprecated unsupported path
            $validFooterIcons = $this->getFooterIcons( $iconStyle );
        }
        $validFooterLinks = $this->getFooterLinks( $linkStyle );

        $html = '';

        if ( count( $validFooterIcons ) + count( $validFooterLinks ) > 0 ) {
            $html .= Html::openElement( 'div', [
                'id' => 'footer-bottom',
                'class' => 'mw-footer',
                'role' => 'contentinfo',
                'lang' => $this->get( 'userlang' ),
                'dir' => $this->get( 'dir' )
            ] );
            $footerEnd = Html::closeElement( 'div' );
        } else {
            $footerEnd = '';
        }
        foreach ( $validFooterIcons as $blockName => $footerIcons ) {
            $html .= Html::openElement( 'div', [
                'id' => Sanitizer::escapeIdForAttribute( "f-{$blockName}ico" ),
                'class' => 'footer-icons'
            ] );
            foreach ( $footerIcons as $icon ) {
                $html .= $this->getSkin()->makeFooterIcon( $icon );
            }
            $html .= Html::closeElement( 'div' );
        }
        if ( count( $validFooterLinks ) > 0 ) {
            $html .= Html::openElement( 'ul', [ 'id' => 'f-list', 'class' => 'footer-places' ] );
            foreach ( $validFooterLinks as $aLink ) {
                $html .= Html::rawElement(
                    'li',
                    [ 'id' => Sanitizer::escapeIdForAttribute( $aLink ) ],
                    $this->get( $aLink )
                );
            }
            $html .= Html::closeElement( 'ul' );
        }

        $html .= $this->getClear() . $footerEnd;

        return $html;
    }

    /**
     * Get a div with the core visualClear class, for clearing floats
     *
     * @return string html
     * @since 1.29
     */
    protected function getClear() {
        return Html::element( 'div', [ 'class' => 'visualClear' ] );
    }

    /**
     * Get the suggested HTML for page status indicators: icons (or short text snippets) usually
     * displayed in the top-right corner of the page, outside of the main content.
     *
     * Your skin may implement this differently, for example by handling some indicator names
     * specially with a different UI. However, it is recommended to use a `<div class="mw-indicator"
     * id="mw-indicator-<id>" />` as a wrapper element for each indicator, for better compatibility
     * with extensions and user scripts.
     *
     * The raw data is available in `$this->data['indicators']` as an associative array (keys:
     * identifiers, values: contents) internally ordered by keys.
     *
     * @return string HTML
     * @since 1.25
     */
    public function getIndicators() {
        $out = "<div class=\"mw-indicators\">\n";
        foreach ( $this->data['indicators'] as $id => $content ) {
            $out .= Html::rawElement(
                'div',
                [
                    'id' => Sanitizer::escapeIdForAttribute( "mw-indicator-$id" ),
                    'class' => 'mw-indicator',
                ],
                $content
            ) .
            // Add whitespace between the <div>s because
            // they get displayed with display: inline-block
            "\n";
        }
        $out .= "</div>\n";
        return $out;
    }
}