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| 1 | <?php |
| 2 | /** |
| 3 | * This file is part of the MediaWiki extension MultimediaViewer. |
| 4 | * |
| 5 | * MultimediaViewer 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 | * MultimediaViewer 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 |
| 16 | * along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>. |
| 17 | * |
| 18 | * @file |
| 19 | * @ingroup extensions |
| 20 | * @author Mark Holmquist <mtraceur@member.fsf.org> |
| 21 | * @copyright Copyright © 2013, Mark Holmquist |
| 22 | */ |
| 23 | |
| 24 | namespace MediaWiki\Extension\MultimediaViewer; |
| 25 | |
| 26 | use CategoryPage; |
| 27 | use ExtensionRegistry; |
| 28 | use MediaWiki\Category\Category; |
| 29 | use MediaWiki\Config\Config; |
| 30 | use MediaWiki\Hook\ThumbnailBeforeProduceHTMLHook; |
| 31 | use MediaWiki\Output\Hook\BeforePageDisplayHook; |
| 32 | use MediaWiki\Output\Hook\MakeGlobalVariablesScriptHook; |
| 33 | use MediaWiki\Output\OutputPage; |
| 34 | use MediaWiki\Page\Hook\CategoryPageViewHook; |
| 35 | use MediaWiki\Preferences\Hook\GetPreferencesHook; |
| 36 | use MediaWiki\ResourceLoader\Hook\ResourceLoaderGetConfigVarsHook; |
| 37 | use MediaWiki\SpecialPage\SpecialPageFactory; |
| 38 | use MediaWiki\User\Hook\UserGetDefaultOptionsHook; |
| 39 | use MediaWiki\User\Options\UserOptionsLookup; |
| 40 | use MediaWiki\User\User; |
| 41 | use MobileContext; |
| 42 | use Skin; |
| 43 | use ThumbnailImage; |
| 44 | |
| 45 | class Hooks implements |
| 46 | MakeGlobalVariablesScriptHook, |
| 47 | UserGetDefaultOptionsHook, |
| 48 | GetPreferencesHook, |
| 49 | BeforePageDisplayHook, |
| 50 | CategoryPageViewHook, |
| 51 | ResourceLoaderGetConfigVarsHook, |
| 52 | ThumbnailBeforeProduceHTMLHook |
| 53 | { |
| 54 | private Config $config; |
| 55 | private SpecialPageFactory $specialPageFactory; |
| 56 | private UserOptionsLookup $userOptionsLookup; |
| 57 | private ?MobileContext $mobileContext; |
| 58 | |
| 59 | /** |
| 60 | * @param Config $config |
| 61 | * @param SpecialPageFactory $specialPageFactory |
| 62 | * @param UserOptionsLookup $userOptionsLookup |
| 63 | */ |
| 64 | public function __construct( |
| 65 | Config $config, |
| 66 | SpecialPageFactory $specialPageFactory, |
| 67 | UserOptionsLookup $userOptionsLookup, |
| 68 | ?MobileContext $mobileContext |
| 69 | ) { |
| 70 | $this->config = $config; |
| 71 | $this->specialPageFactory = $specialPageFactory; |
| 72 | $this->userOptionsLookup = $userOptionsLookup; |
| 73 | $this->mobileContext = $mobileContext; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/UserGetDefaultOptions |
| 78 | * @param array &$defaultOptions |
| 79 | */ |
| 80 | public function onUserGetDefaultOptions( &$defaultOptions ) { |
| 81 | if ( $this->config->get( 'MediaViewerEnableByDefault' ) ) { |
| 82 | $defaultOptions['multimediaviewer-enable'] = 1; |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | /** |
| 87 | * Checks the context for whether to load the viewer. |
| 88 | * @param User $performer |
| 89 | * @return bool |
| 90 | */ |
| 91 | protected function shouldHandleClicks( User $performer ): bool { |
| 92 | if ( $performer->isNamed() ) { |
| 93 | return (bool)$this->userOptionsLookup->getOption( $performer, 'multimediaviewer-enable' ); |
| 94 | } |
| 95 | |
| 96 | return (bool)( |
| 97 | $this->config->get( 'MediaViewerEnableByDefaultForAnonymous' ) ?? |
| 98 | $this->config->get( 'MediaViewerEnableByDefault' ) |
| 99 | ); |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Handler for all places where we add the modules |
| 104 | * Could be on article pages or on Category pages |
| 105 | * @param OutputPage $out |
| 106 | */ |
| 107 | protected function getModules( OutputPage $out ) { |
| 108 | // The MobileFrontend extension provides its own implementation of MultimediaViewer. |
| 109 | // See https://phabricator.wikimedia.org/T65504 and subtasks for more details. |
| 110 | // To avoid loading MMV twice, we check the environment we are running in. |
| 111 | $isMobileFrontendView = ExtensionRegistry::getInstance()->isLoaded( 'MobileFrontend' ) && |
| 112 | $this->mobileContext && $this->mobileContext->shouldDisplayMobileView(); |
| 113 | if ( !$isMobileFrontendView ) { |
| 114 | $out->addModules( [ 'mmv.head', 'mmv.bootstrap.autostart' ] ); |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforePageDisplay |
| 120 | * Add JavaScript to the page when an image is on it |
| 121 | * and the user has enabled the feature |
| 122 | * @param OutputPage $out |
| 123 | * @param Skin $skin |
| 124 | */ |
| 125 | public function onBeforePageDisplay( $out, $skin ): void { |
| 126 | $pageHasThumbnails = count( $out->getFileSearchOptions() ) > 0; |
| 127 | $pageIsFilePage = $out->getTitle()->inNamespace( NS_FILE ); |
| 128 | // TODO: Have Flow work out if there are any images on the page |
| 129 | $pageIsFlowPage = ExtensionRegistry::getInstance()->isLoaded( 'Flow' ) && |
| 130 | // CONTENT_MODEL_FLOW_BOARD |
| 131 | $out->getTitle()->getContentModel() === 'flow-board'; |
| 132 | $fileRelatedSpecialPages = [ 'Newimages', 'Listfiles', 'Mostimages', |
| 133 | 'MostGloballyLinkedFiles', 'Uncategorizedimages', 'Unusedimages', 'Search' ]; |
| 134 | $pageIsFileRelatedSpecialPage = $out->getTitle()->inNamespace( NS_SPECIAL ) |
| 135 | && in_array( $this->specialPageFactory->resolveAlias( $out->getTitle()->getDBkey() )[0], |
| 136 | $fileRelatedSpecialPages ); |
| 137 | |
| 138 | if ( $pageHasThumbnails || $pageIsFilePage || $pageIsFileRelatedSpecialPage || $pageIsFlowPage ) { |
| 139 | $this->getModules( $out ); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/CategoryPageView |
| 145 | * Add JavaScript to the page if there are images in the category |
| 146 | * @param CategoryPage $catPage |
| 147 | */ |
| 148 | public function onCategoryPageView( $catPage ) { |
| 149 | $title = $catPage->getTitle(); |
| 150 | $cat = Category::newFromTitle( $title ); |
| 151 | if ( $cat->getFileCount() > 0 ) { |
| 152 | $out = $catPage->getContext()->getOutput(); |
| 153 | $this->getModules( $out ); |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/GetPreferences |
| 159 | * Adds a default-enabled preference to gate the feature |
| 160 | * @param User $user |
| 161 | * @param array &$prefs |
| 162 | */ |
| 163 | public function onGetPreferences( $user, &$prefs ) { |
| 164 | $prefs['multimediaviewer-enable'] = [ |
| 165 | 'type' => 'toggle', |
| 166 | 'label-message' => 'multimediaviewer-optin-pref', |
| 167 | 'section' => 'rendering/files', |
| 168 | ]; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/ResourceLoaderGetConfigVars |
| 173 | * Export variables used in both PHP and JS to keep DRY |
| 174 | * @param array &$vars |
| 175 | * @param string $skin |
| 176 | * @param Config $config |
| 177 | */ |
| 178 | public function onResourceLoaderGetConfigVars( array &$vars, $skin, Config $config ): void { |
| 179 | $vars['wgMediaViewer'] = true; |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/MakeGlobalVariablesScript |
| 184 | * Export variables which depend on the current user |
| 185 | * @param array &$vars |
| 186 | * @param OutputPage $out |
| 187 | * @return void |
| 188 | */ |
| 189 | public function onMakeGlobalVariablesScript( &$vars, $out ): void { |
| 190 | $user = $out->getUser(); |
| 191 | $isMultimediaViewerEnable = $this->userOptionsLookup->getDefaultOption( |
| 192 | 'multimediaviewer-enable', |
| 193 | $user |
| 194 | ); |
| 195 | |
| 196 | $vars['wgMediaViewerOnClick'] = $this->shouldHandleClicks( $user ); |
| 197 | // needed because of T71942; could be different for anon and logged-in |
| 198 | $vars['wgMediaViewerEnabledByDefault'] = (bool)$isMultimediaViewerEnable; |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/ThumbnailBeforeProduceHTML |
| 203 | * Modify thumbnail DOM |
| 204 | * @param ThumbnailImage $thumbnail |
| 205 | * @param array &$attribs Attributes of the <img> element |
| 206 | * @param array|bool &$linkAttribs Attributes of the wrapping <a> element |
| 207 | */ |
| 208 | public function onThumbnailBeforeProduceHTML( |
| 209 | $thumbnail, |
| 210 | &$attribs, |
| 211 | &$linkAttribs |
| 212 | ) { |
| 213 | $file = $thumbnail->getFile(); |
| 214 | |
| 215 | if ( $file ) { |
| 216 | $attribs['data-file-width'] = $file->getWidth(); |
| 217 | $attribs['data-file-height'] = $file->getHeight(); |
| 218 | } |
| 219 | } |
| 220 | } |