Expose $wgMaxArticleSize in siteinfo query api

[mediawiki.git] / includes / htmlform / OOUIHTMLForm.php

<?php

/**
 * HTML form generation and submission handling, OOUI style.
 *
 * 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
 */

/**
 * Compact stacked vertical format for forms, implemented using OOUI widgets.
 */
class OOUIHTMLForm extends HTMLForm {
        private $oouiErrors;

        public function __construct( $descriptor, $context = null, $messagePrefix = '' ) {
                parent::__construct( $descriptor, $context, $messagePrefix );
                $this->getOutput()->enableOOUI();
                $this->getOutput()->addModuleStyles( 'mediawiki.htmlform.ooui.styles' );
        }

        /**
         * Symbolic display format name.
         * @var string
         */
        protected $displayFormat = 'ooui';

        public static function loadInputFromParameters( $fieldname, $descriptor,
                HTMLForm $parent = null
        ) {
                $field = parent::loadInputFromParameters( $fieldname, $descriptor, $parent );
                $field->setShowEmptyLabel( false );
                return $field;
        }

        function getButtons() {
                $buttons = '';

                // IE<8 has bugs with <button>, so we'll need to avoid them.
                $isBadIE = preg_match( '/MSIE [1-7]\./i', $this->getRequest()->getHeader( 'User-Agent' ) );

                if ( $this->mShowSubmit ) {
                        $attribs = [ 'infusable' => true ];

                        if ( isset( $this->mSubmitID ) ) {
                                $attribs['id'] = $this->mSubmitID;
                        }

                        if ( isset( $this->mSubmitName ) ) {
                                $attribs['name'] = $this->mSubmitName;
                        }

                        if ( isset( $this->mSubmitTooltip ) ) {
                                $attribs += Linker::tooltipAndAccesskeyAttribs( $this->mSubmitTooltip );
                        }

                        $attribs['classes'] = [ 'mw-htmlform-submit' ];
                        $attribs['type'] = 'submit';
                        $attribs['label'] = $this->getSubmitText();
                        $attribs['value'] = $this->getSubmitText();
                        $attribs['flags'] = $this->mSubmitFlags;
                        $attribs['useInputTag'] = $isBadIE;

                        $buttons .= new OOUI\ButtonInputWidget( $attribs );
                }

                if ( $this->mShowReset ) {
                        $buttons .= new OOUI\ButtonInputWidget( [
                                'type' => 'reset',
                                'label' => $this->msg( 'htmlform-reset' )->text(),
                                'useInputTag' => $isBadIE,
                        ] );
                }

                if ( $this->mShowCancel ) {
                        $target = $this->mCancelTarget ?: Title::newMainPage();
                        if ( $target instanceof Title ) {
                                $target = $target->getLocalURL();
                        }
                        $buttons .= new OOUI\ButtonWidget( [
                                'label' => $this->msg( 'cancel' )->text(),
                                'href' => $target,
                        ] );
                }

                foreach ( $this->mButtons as $button ) {
                        $attrs = [];

                        if ( $button['attribs'] ) {
                                $attrs += $button['attribs'];
                        }

                        if ( isset( $button['id'] ) ) {
                                $attrs['id'] = $button['id'];
                        }

                        if ( $isBadIE ) {
                                $label = $button['value'];
                        } elseif ( isset( $button['label-message'] ) ) {
                                $label = new OOUI\HtmlSnippet( $this->getMessage( $button['label-message'] )->parse() );
                        } elseif ( isset( $button['label'] ) ) {
                                $label = $button['label'];
                        } elseif ( isset( $button['label-raw'] ) ) {
                                $label = new OOUI\HtmlSnippet( $button['label-raw'] );
                        } else {
                                $label = $button['value'];
                        }

                        $attrs['classes'] = isset( $attrs['class'] ) ? (array)$attrs['class'] : [];

                        $buttons .= new OOUI\ButtonInputWidget( [
                                'type' => 'submit',
                                'name' => $button['name'],
                                'value' => $button['value'],
                                'label' => $label,
                                'flags' => $button['flags'],
                                'framed' => $button['framed'],
                                'useInputTag' => $isBadIE,
                        ] + $attrs );
                }

                if ( !$buttons ) {
                        return '';
                }

                return Html::rawElement( 'div',
                        [ 'class' => 'mw-htmlform-submit-buttons' ], "\n$buttons" ) . "\n";
        }

        protected function wrapFieldSetSection( $legend, $section, $attributes ) {
                // to get a user visible effect, wrap the fieldset into a framed panel layout
                $layout = new OOUI\PanelLayout( [
                        'expanded' => false,
                        'padded' => true,
                        'framed' => true,
                        'infusable' => false,
                ] );

                $layout->appendContent(
                        new OOUI\FieldsetLayout( [
                                'label' => $legend,
                                'infusable' => false,
                                'items' => [
                                        new OOUI\Widget( [
                                                'content' => new OOUI\HtmlSnippet( $section )
                                        ] ),
                                ],
                        ] + $attributes )
                );
                return $layout;
        }

        /**
         * Put a form section together from the individual fields' HTML, merging it and wrapping.
         * @param OOUI\FieldLayout[] $fieldsHtml
         * @param string $sectionName
         * @param bool $anyFieldHasLabel Unused
         * @return string HTML
         */
        protected function formatSection( array $fieldsHtml, $sectionName, $anyFieldHasLabel ) {
                $config = [
                        'items' => $fieldsHtml,
                ];
                if ( $sectionName ) {
                        $config['id'] = Sanitizer::escapeId( $sectionName );
                }
                if ( is_string( $this->mWrapperLegend ) ) {
                        $config['label'] = $this->mWrapperLegend;
                }
                return new OOUI\FieldsetLayout( $config );
        }

        /**
         * @param string|array|Status $err
         * @return string
         */
        function getErrors( $err ) {
                if ( !$err ) {
                        $errors = [];
                } elseif ( $err instanceof Status ) {
                        if ( $err->isOK() ) {
                                $errors = [];
                        } else {
                                $errors = $err->getErrorsByType( 'error' );
                                foreach ( $errors as &$error ) {
                                        // Input:  array( 'message' => 'foo', 'errors' => array( 'a', 'b', 'c' ) )
                                        // Output: array( 'foo', 'a', 'b', 'c' )
                                        $error = array_merge( [ $error['message'] ], $error['params'] );
                                }
                        }
                } else {
                        $errors = $err;
                        if ( !is_array( $errors ) ) {
                                $errors = [ $errors ];
                        }
                }

                foreach ( $errors as &$error ) {
                        $error = $this->getMessage( $error )->parse();
                        $error = new OOUI\HtmlSnippet( $error );
                }

                // Used in getBody()
                $this->oouiErrors = $errors;
                return '';
        }

        function getHeaderText( $section = null ) {
                if ( is_null( $section ) ) {
                        // We handle $this->mHeader elsewhere, in getBody()
                        return '';
                } else {
                        return parent::getHeaderText( $section );
                }
        }

        function getBody() {
                $fieldset = parent::getBody();
                // FIXME This only works for forms with no subsections
                if ( $fieldset instanceof OOUI\FieldsetLayout ) {
                        $classes = [ 'mw-htmlform-ooui-header' ];
                        if ( $this->oouiErrors ) {
                                $classes[] = 'mw-htmlform-ooui-header-errors';
                        }
                        if ( $this->mHeader || $this->oouiErrors ) {
                                // if there's no header, don't create an (empty) LabelWidget, simply use a placeholder
                                if ( $this->mHeader ) {
                                        $element = new OOUI\LabelWidget( [ 'label' => new OOUI\HtmlSnippet( $this->mHeader ) ] );
                                } else {
                                        $element = new OOUI\Widget( [] );
                                }
                                $fieldset->addItems( [
                                        new OOUI\FieldLayout(
                                                $element,
                                                [
                                                        'align' => 'top',
                                                        'errors' => $this->oouiErrors,
                                                        'classes' => $classes,
                                                ]
                                        )
                                ], 0 );
                        }
                }
                return $fieldset;
        }

        function wrapForm( $html ) {
                $form = new OOUI\FormLayout( $this->getFormAttributes() + [
                        'classes' => [ 'mw-htmlform-ooui' ],
                        'content' => new OOUI\HtmlSnippet( $html ),
                ] );

                // Include a wrapper for style, if requested.
                $form = new OOUI\PanelLayout( [
                        'classes' => [ 'mw-htmlform-ooui-wrapper' ],
                        'expanded' => false,
                        'padded' => $this->mWrapperLegend !== false,
                        'framed' => $this->mWrapperLegend !== false,
                        'content' => $form,
                ] );

                return $form;
        }
}