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| 1 | <?php |
| 2 | /** |
| 3 | * Common code for all Echo event presentation models for DiscussionTools events. |
| 4 | * |
| 5 | * @file |
| 6 | * @ingroup Extensions |
| 7 | * @license MIT |
| 8 | */ |
| 9 | |
| 10 | namespace MediaWiki\Extension\DiscussionTools\Notifications; |
| 11 | |
| 12 | use MediaWiki\Extension\Notifications\DiscussionParser; |
| 13 | use MediaWiki\Extension\Notifications\Formatters\EchoPresentationModelSection; |
| 14 | use MediaWiki\Extension\Notifications\Model\Event; |
| 15 | use MediaWiki\Language\Language; |
| 16 | use MediaWiki\Revision\RevisionRecord; |
| 17 | use MediaWiki\WikiMap\WikiMap; |
| 18 | |
| 19 | /** |
| 20 | * This trait must be only used on EchoEventPresentationModel subclasses. |
| 21 | * |
| 22 | * @property Event $event |
| 23 | * @property Language $language |
| 24 | * @property EchoPresentationModelSection $section |
| 25 | */ |
| 26 | trait DiscussionToolsEventTrait { |
| 27 | |
| 28 | /** |
| 29 | * @param int $type RevisionRecord::DELETED_* constant |
| 30 | * @return bool |
| 31 | */ |
| 32 | abstract protected function userCan( $type ); |
| 33 | |
| 34 | /** |
| 35 | * @return bool |
| 36 | */ |
| 37 | abstract protected function isBundled(); |
| 38 | |
| 39 | /** |
| 40 | * @return Event[] |
| 41 | */ |
| 42 | abstract protected function getBundledEvents(); |
| 43 | |
| 44 | /** |
| 45 | * @return int[]|false |
| 46 | */ |
| 47 | abstract protected function getBundledIds(); |
| 48 | |
| 49 | /** |
| 50 | * Get a link to the individual comment, if available. |
| 51 | * |
| 52 | * @return string|null Full URL linking to the comment, null if not available |
| 53 | */ |
| 54 | protected function getCommentLink(): ?string { |
| 55 | if ( !$this->userCan( RevisionRecord::DELETED_TEXT ) ) { |
| 56 | return null; |
| 57 | } |
| 58 | if ( !$this->isBundled() ) { |
| 59 | // For a single-comment notification, make a pretty(ish) direct link to the comment. |
| 60 | // The browser scrolls and we highlight it client-side. |
| 61 | $commentId = $this->event->getExtraParam( 'comment-id' ); |
| 62 | if ( !$commentId ) { |
| 63 | return null; |
| 64 | } |
| 65 | $title = $this->event->getTitle(); |
| 66 | return $title->createFragmentTarget( $commentId )->getFullURL(); |
| 67 | } else { |
| 68 | // For a multi-comment notification, we can't make a direct link, because we don't know |
| 69 | // which comment appears first on the page; the best we can do is a link to the section. |
| 70 | // We handle both scrolling and highlighting client-side, using the ugly parameter |
| 71 | // listing all comments. |
| 72 | |
| 73 | // Bundling works differently for different notification types: |
| 74 | // * Subscribed topic notifications are bundled per-section. |
| 75 | // * User talk page notifications are bundled per-page (so basically, always bundled). |
| 76 | // * Mention notifications are *never* bundled. |
| 77 | |
| 78 | // Just pass the oldest comment in the bundle. The client has access to the comment |
| 79 | // tree and so can work out all the other comments since this one. |
| 80 | |
| 81 | // This does not include the newest comment, $this->event, but we are looking |
| 82 | // for the oldest comment. |
| 83 | $bundledEvents = $this->getBundledEvents(); |
| 84 | $oldestEvent = end( $bundledEvents ); |
| 85 | $params = [ 'dtnewcommentssince' => $oldestEvent->getExtraParam( 'comment-id' ) ]; |
| 86 | if ( $this->event->getType() === 'dt-added-topic' ) { |
| 87 | // New topics notifications: Tell client to only highlight topics **started** since this one |
| 88 | $params[ 'dtsincethread' ] = 1; |
| 89 | } elseif ( $this->event->getExtraParam( 'subscribed-comment-name' ) ) { |
| 90 | // Topic notifications: Tell client to restrict highlights to this thread |
| 91 | $params[ 'dtinthread' ] = 1; |
| 92 | } |
| 93 | // This may or may not have a fragment identifier, depending on whether it was recorded for |
| 94 | // the first one of the bundled events. It's usually not needed because we handle scrolling |
| 95 | // client-side, but we can keep it for no-JS users, and to reduce the jump when scrolling. |
| 96 | $titleWithOptionalSection = $this->section->getTitleWithSection(); |
| 97 | return $titleWithOptionalSection->getFullURL( $params ); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Get a snippet of the individual comment, if available. |
| 103 | * |
| 104 | * @return string The snippet, as plain text (may be empty) |
| 105 | */ |
| 106 | protected function getContentSnippet(): string { |
| 107 | if ( !$this->userCan( RevisionRecord::DELETED_TEXT ) ) { |
| 108 | return ''; |
| 109 | } |
| 110 | // Note that we store plain text in the 'content' param. |
| 111 | // Echo also has a 'content' param (for mention notifications), but it contains wikitext. |
| 112 | $content = $this->event->getExtraParam( 'content' ); |
| 113 | if ( !$content ) { |
| 114 | return ''; |
| 115 | } |
| 116 | return $this->language->truncateForVisual( $content, DiscussionParser::DEFAULT_SNIPPET_LENGTH ); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Add mark-as-read params to a link array |
| 121 | * |
| 122 | * Taken from EchoEventPresentationModel::getPrimaryLinkWithMarkAsRead |
| 123 | * TODO: Upstream to Echo? |
| 124 | * |
| 125 | * @param array $link Link |
| 126 | * @return array |
| 127 | */ |
| 128 | protected function addMarkAsRead( $link ) { |
| 129 | global $wgEchoCrossWikiNotifications; |
| 130 | if ( $link ) { |
| 131 | $eventIds = [ $this->event->getId() ]; |
| 132 | if ( $this->getBundledIds() ) { |
| 133 | $eventIds = array_merge( $eventIds, $this->getBundledIds() ); |
| 134 | } |
| 135 | |
| 136 | $queryParams = [ 'markasread' => implode( '|', $eventIds ) ]; |
| 137 | if ( $wgEchoCrossWikiNotifications ) { |
| 138 | $queryParams['markasreadwiki'] = WikiMap::getCurrentWikiId(); |
| 139 | } |
| 140 | |
| 141 | $link['url'] = wfAppendQuery( $link['url'], $queryParams ); |
| 142 | } |
| 143 | return $link; |
| 144 | } |
| 145 | |
| 146 | } |