includes/specials/SpecialJavaScriptTest.php

   1 <?php
   2 /**
   3  * Implements Special:JavaScriptTest
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * @ingroup SpecialPage
  26  */
  27 class SpecialJavaScriptTest extends SpecialPage {
  28         /**
  29          * @var array Mapping of framework ids and their initilizer methods
  30          * in this class. If a framework is requested but not in this array,
  31          * the 'unknownframework' error is served.
  32          */
  33         private static $frameworks = array(
  34                 'qunit' => 'initQUnitTesting',
  35         );
  36
  37         public function __construct() {
  38                 parent::__construct( 'JavaScriptTest' );
  39         }
  40
  41         public function execute( $par ) {
  42                 $out = $this->getOutput();
  43
  44                 $this->setHeaders();
  45                 $out->disallowUserJs();
  46
  47                 $out->addModules( 'mediawiki.special.javaScriptTest' );
  48
  49                 // Determine framework
  50                 $pars = explode( '/', $par );
  51                 $framework = strtolower( $pars[0] );
  52
  53                 // No framework specified
  54                 if ( $par == '' ) {
  55                         $out->setPageTitle( $this->msg( 'javascripttest' ) );
  56                         $summary = $this->wrapSummaryHtml(
  57                                 $this->msg( 'javascripttest-pagetext-noframework' )->escaped() .
  58                                         $this->getFrameworkListHtml(),
  59                                 'noframework'
  60                         );
  61                         $out->addHtml( $summary );
  62                 } elseif ( isset( self::$frameworks[$framework] ) ) {
  63                         // Matched! Display proper title and initialize the framework
  64                         $out->setPageTitle( $this->msg(
  65                                 'javascripttest-title',
  66                                 // Messages: javascripttest-qunit-name
  67                                 $this->msg( "javascripttest-$framework-name" )->plain()
  68                         ) );
  69                         $out->setSubtitle( $this->msg( 'javascripttest-backlink' )
  70                                 ->rawParams( Linker::linkKnown( $this->getPageTitle() ) ) );
  71                         $this->{self::$frameworks[$framework]}();
  72                 } else {
  73                         // Framework not found, display error
  74                         $out->setPageTitle( $this->msg( 'javascripttest' ) );
  75                         $summary = $this->wrapSummaryHtml(
  76                                 '<p class="error">' .
  77                                         $this->msg( 'javascripttest-pagetext-unknownframework', $par )->escaped() .
  78                                         '</p>' .
  79                                         $this->getFrameworkListHtml(),
  80                                 'unknownframework'
  81                         );
  82                         $out->addHtml( $summary );
  83                 }
  84         }
  85
  86         /**
  87          * Get a list of frameworks (including introduction paragraph and links
  88          * to the framework run pages)
  89          *
  90          * @return string HTML
  91          */
  92         private function getFrameworkListHtml() {
  93                 $list = '<ul>';
  94                 foreach ( self::$frameworks as $framework => $initFn ) {
  95                         $list .= Html::rawElement(
  96                                 'li',
  97                                 array(),
  98                                 Linker::link(
  99                                         $this->getPageTitle( $framework ),
 100                                         // Message: javascripttest-qunit-name
 101                                         $this->msg( "javascripttest-$framework-name" )->escaped()
 102                                 )
 103                         );
 104                 }
 105                 $list .= '</ul>';
 106
 107                 return $this->msg( 'javascripttest-pagetext-frameworks' )->rawParams( $list )
 108                         ->parseAsBlock();
 109         }
 110
 111         /**
 112          * Function to wrap the summary.
 113          * It must be given a valid state as a second parameter or an exception will
 114          * be thrown.
 115          * @param string $html The raw HTML.
 116          * @param string $state State, one of 'noframework', 'unknownframework' or 'frameworkfound'
 117          * @throws MWException
 118          * @return string
 119          */
 120         private function wrapSummaryHtml( $html, $state ) {
 121                 $validStates = array( 'noframework', 'unknownframework', 'frameworkfound' );
 122
 123                 if ( !in_array( $state, $validStates ) ) {
 124                         throw new MWException( __METHOD__
 125                                 . ' given an invalid state. Must be one of "'
 126                                 . join( '", "', $validStates ) . '".'
 127                         );
 128                 }
 129
 130                 return "<div id=\"mw-javascripttest-summary\" class=\"mw-javascripttest-$state\">$html</div>";
 131         }
 132
 133         /**
 134          * Initialize the page for QUnit.
 135          */
 136         private function initQUnitTesting() {
 137                 $out = $this->getOutput();
 138
 139                 $out->addModules( 'test.mediawiki.qunit.testrunner' );
 140                 $qunitTestModules = $out->getResourceLoader()->getTestModuleNames( 'qunit' );
 141                 $out->addModules( $qunitTestModules );
 142
 143                 $summary = $this->msg( 'javascripttest-qunit-intro' )
 144                         ->params( 'https://www.mediawiki.org/wiki/Manual:JavaScript_unit_testing' )
 145                         ->parseAsBlock();
 146                 $header = $this->msg( 'javascripttest-qunit-heading' )->escaped();
 147                 $userDir = $this->getLanguage()->getDir();
 148
 149                 $baseHtml = <<<HTML
 150 <div class="mw-content-ltr">
 151 <div id="qunit-header"><span dir="$userDir">$header</span></div>
 152 <div id="qunit-banner"></div>
 153 <div id="qunit-testrunner-toolbar"></div>
 154 <div id="qunit-userAgent"></div>
 155 <ol id="qunit-tests"></ol>
 156 <div id="qunit-fixture">test markup, will be hidden</div>
 157 </div>
 158 HTML;
 159                 $out->addHtml( $this->wrapSummaryHtml( $summary, 'frameworkfound' ) . $baseHtml );
 160
 161                 // This special page is disabled by default ($wgEnableJavaScriptTest), and contains
 162                 // no sensitive data. In order to allow test frameworks to embed it into a test client window,
 163                 // we need to allow iframing of this page.
 164                 $out->allowClickjacking();
 165         }
 166
 167         /**
 168          * Return an array of subpages that this special page will accept.
 169          *
 170          * @return string[] subpages
 171          */
 172         public function getSubpagesForPrefixSearch() {
 173                 return array_keys( self::$frameworks );
 174         }
 175
 176         protected function getGroupName() {
 177                 return 'other';
 178         }
 179 }