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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\RevisionSlider; |
| 4 | |
| 5 | use Liuggio\StatsdClient\Factory\StatsdDataFactoryInterface; |
| 6 | use MediaWiki\Config\Config; |
| 7 | use MediaWiki\Config\ConfigFactory; |
| 8 | use MediaWiki\Diff\Hook\DifferenceEngineViewHeaderHook; |
| 9 | use MediaWiki\Html\Html; |
| 10 | use MediaWiki\MainConfigNames; |
| 11 | use MediaWiki\Preferences\Hook\GetPreferencesHook; |
| 12 | use MediaWiki\Revision\RevisionRecord; |
| 13 | use MediaWiki\User\Options\UserOptionsLookup; |
| 14 | use MediaWiki\User\User; |
| 15 | use Message; |
| 16 | use OOUI\ButtonWidget; |
| 17 | |
| 18 | /** |
| 19 | * RevisionSlider extension hooks |
| 20 | * |
| 21 | * @file |
| 22 | * @ingroup Extensions |
| 23 | * @license GPL-2.0-or-later |
| 24 | */ |
| 25 | class RevisionSliderHooks implements DifferenceEngineViewHeaderHook, GetPreferencesHook { |
| 26 | |
| 27 | private Config $config; |
| 28 | private UserOptionsLookup $userOptionsLookup; |
| 29 | private StatsdDataFactoryInterface $statsdDataFactory; |
| 30 | |
| 31 | public function __construct( |
| 32 | ConfigFactory $configFactory, |
| 33 | UserOptionsLookup $userOptionsLookup, |
| 34 | StatsdDataFactoryInterface $statsdDataFactory |
| 35 | ) { |
| 36 | $this->config = $configFactory->makeConfig( 'revisionslider' ); |
| 37 | $this->userOptionsLookup = $userOptionsLookup; |
| 38 | $this->statsdDataFactory = $statsdDataFactory; |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * @inheritDoc |
| 43 | */ |
| 44 | public function onDifferenceEngineViewHeader( $differenceEngine ) { |
| 45 | $oldRevRecord = $differenceEngine->getOldRevision(); |
| 46 | $newRevRecord = $differenceEngine->getNewRevision(); |
| 47 | |
| 48 | /** |
| 49 | * If the user is logged in and has explictly requested to disable the extension don't load. |
| 50 | */ |
| 51 | $user = $differenceEngine->getUser(); |
| 52 | if ( $this->isDisabled( $user ) || !$this->isSamePage( $oldRevRecord, $newRevRecord ) ) { |
| 53 | return; |
| 54 | } |
| 55 | |
| 56 | $this->statsdDataFactory->increment( 'RevisionSlider.event.hookinit' ); |
| 57 | |
| 58 | $timeOffset = 0; |
| 59 | if ( $this->config->get( MainConfigNames::Localtimezone ) !== null ) { |
| 60 | $timeOffset = $this->config->get( MainConfigNames::LocalTZoffset ) ?? 0; |
| 61 | } |
| 62 | |
| 63 | $autoExpand = $this->userOptionsLookup->getBoolOption( $user, 'userjs-revslider-autoexpand' ); |
| 64 | |
| 65 | $out = $differenceEngine->getOutput(); |
| 66 | // Load styles on page load to avoid FOUC |
| 67 | $out->addModuleStyles( 'ext.RevisionSlider.lazyCss' ); |
| 68 | if ( $autoExpand ) { |
| 69 | $out->addModules( 'ext.RevisionSlider.init' ); |
| 70 | $this->statsdDataFactory->increment( 'RevisionSlider.event.load' ); |
| 71 | } else { |
| 72 | $out->addModules( 'ext.RevisionSlider.lazyJs' ); |
| 73 | $this->statsdDataFactory->increment( 'RevisionSlider.event.lazyload' ); |
| 74 | } |
| 75 | $out->addJsConfigVars( 'extRevisionSliderTimeOffset', $timeOffset ); |
| 76 | $out->enableOOUI(); |
| 77 | |
| 78 | $out->prependHTML( $this->getContainerHtml( $autoExpand ) ); |
| 79 | } |
| 80 | |
| 81 | public function isDisabled( User $user ): bool { |
| 82 | return $user->isNamed() && |
| 83 | $this->userOptionsLookup->getBoolOption( $user, 'revisionslider-disable' ); |
| 84 | } |
| 85 | |
| 86 | private function isSamePage( ?RevisionRecord $oldRevRecord, ?RevisionRecord $newRevRecord ): bool { |
| 87 | // sometimes the old revision can be null (e.g. missing rev), and perhaps also the |
| 88 | // new one (T167359) |
| 89 | if ( !$oldRevRecord || !$newRevRecord ) { |
| 90 | return false; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Do not show the RevisionSlider when revisions from two different pages are being compared |
| 95 | * |
| 96 | * Since RevisionRecord::getPageAsLinkTarget only returns a LinkTarget, which doesn't |
| 97 | * have an equals method, compare manually by namespace and text |
| 98 | */ |
| 99 | $oldTitle = $oldRevRecord->getPageAsLinkTarget(); |
| 100 | $newTitle = $newRevRecord->getPageAsLinkTarget(); |
| 101 | return $oldTitle->getNamespace() === $newTitle->getNamespace() && |
| 102 | $oldTitle->getDBKey() === $newTitle->getDBKey(); |
| 103 | } |
| 104 | |
| 105 | private function getContainerHtml( bool $autoExpand ): string { |
| 106 | $toggleButton = new ButtonWidget( [ |
| 107 | 'label' => ( new Message( 'revisionslider-toggle-label' ) )->text(), |
| 108 | 'indicator' => 'down', |
| 109 | 'classes' => [ 'mw-revslider-toggle-button' ], |
| 110 | 'infusable' => true, |
| 111 | 'framed' => false, |
| 112 | 'title' => ( new Message( 'revisionslider-toggle-title-expand' ) )->text(), |
| 113 | ] ); |
| 114 | $toggleButton->setAttributes( [ 'style' => 'width: 100%; text-align: center;' ] ); |
| 115 | |
| 116 | $loadingSpinner = Html::rawElement( |
| 117 | 'div', [ 'class' => 'mw-revslider-spinner' ], |
| 118 | Html::element( |
| 119 | 'div', [ 'class' => 'mw-revslider-bounce' ] |
| 120 | ) |
| 121 | ); |
| 122 | |
| 123 | return Html::rawElement( 'div', |
| 124 | [ 'class' => 'mw-revslider-container' ], |
| 125 | $toggleButton . |
| 126 | Html::rawElement( 'div', |
| 127 | [ |
| 128 | 'class' => 'mw-revslider-slider-wrapper', |
| 129 | 'style' => $autoExpand ? null : 'display: none;', |
| 130 | ], |
| 131 | Html::rawElement( 'div', |
| 132 | [ 'class' => 'mw-revslider-placeholder' ], |
| 133 | $loadingSpinner |
| 134 | ) |
| 135 | ) |
| 136 | ); |
| 137 | } |
| 138 | |
| 139 | /** |
| 140 | * @inheritDoc |
| 141 | */ |
| 142 | public function onGetPreferences( $user, &$preferences ) { |
| 143 | $preferences['revisionslider-disable'] = [ |
| 144 | 'type' => 'toggle', |
| 145 | 'label-message' => 'revisionslider-preference-disable', |
| 146 | 'section' => 'rendering/diffs', |
| 147 | ]; |
| 148 | } |
| 149 | |
| 150 | } |