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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\BeforePageDisplayHook; |
31 | use MediaWiki\Hook\MakeGlobalVariablesScriptHook; |
32 | use MediaWiki\Hook\ThumbnailBeforeProduceHTMLHook; |
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 | /** @var string Link to more information about this module */ |
55 | protected static $infoLink = |
56 | 'https://mediawiki.org/wiki/Special:MyLanguage/Extension:Media_Viewer/About'; |
57 | |
58 | /** @var string Link to a page where this module can be discussed */ |
59 | protected static $discussionLink = |
60 | 'https://mediawiki.org/wiki/Special:MyLanguage/Extension_talk:Media_Viewer/About'; |
61 | |
62 | /** @var string Link to help about this module */ |
63 | protected static $helpLink = |
64 | 'https://mediawiki.org/wiki/Special:MyLanguage/Help:Extension:Media_Viewer'; |
65 | |
66 | private Config $config; |
67 | private SpecialPageFactory $specialPageFactory; |
68 | private UserOptionsLookup $userOptionsLookup; |
69 | private ?MobileContext $mobileContext; |
70 | |
71 | /** |
72 | * @param Config $config |
73 | * @param SpecialPageFactory $specialPageFactory |
74 | * @param UserOptionsLookup $userOptionsLookup |
75 | */ |
76 | public function __construct( |
77 | Config $config, |
78 | SpecialPageFactory $specialPageFactory, |
79 | UserOptionsLookup $userOptionsLookup, |
80 | ?MobileContext $mobileContext |
81 | ) { |
82 | $this->config = $config; |
83 | $this->specialPageFactory = $specialPageFactory; |
84 | $this->userOptionsLookup = $userOptionsLookup; |
85 | $this->mobileContext = $mobileContext; |
86 | } |
87 | |
88 | /** |
89 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/UserGetDefaultOptions |
90 | * @param array &$defaultOptions |
91 | */ |
92 | public function onUserGetDefaultOptions( &$defaultOptions ) { |
93 | if ( $this->config->get( 'MediaViewerEnableByDefault' ) ) { |
94 | $defaultOptions['multimediaviewer-enable'] = 1; |
95 | } |
96 | } |
97 | |
98 | /** |
99 | * Checks the context for whether to load the viewer. |
100 | * @param User $performer |
101 | * @return bool |
102 | */ |
103 | protected function shouldHandleClicks( User $performer ): bool { |
104 | if ( $performer->isNamed() ) { |
105 | return (bool)$this->userOptionsLookup->getOption( $performer, 'multimediaviewer-enable' ); |
106 | } |
107 | |
108 | return (bool)( |
109 | $this->config->get( 'MediaViewerEnableByDefaultForAnonymous' ) ?? |
110 | $this->config->get( 'MediaViewerEnableByDefault' ) |
111 | ); |
112 | } |
113 | |
114 | /** |
115 | * Handler for all places where we add the modules |
116 | * Could be on article pages or on Category pages |
117 | * @param OutputPage $out |
118 | */ |
119 | protected function getModules( OutputPage $out ) { |
120 | // The MobileFrontend extension provides its own implementation of MultimediaViewer. |
121 | // See https://phabricator.wikimedia.org/T65504 and subtasks for more details. |
122 | // To avoid loading MMV twice, we check the environment we are running in. |
123 | $isMobileFrontendView = ExtensionRegistry::getInstance()->isLoaded( 'MobileFrontend' ) && |
124 | $this->mobileContext && $this->mobileContext->shouldDisplayMobileView(); |
125 | if ( !$isMobileFrontendView ) { |
126 | $out->addModules( [ 'mmv.head', 'mmv.bootstrap.autostart' ] ); |
127 | } |
128 | } |
129 | |
130 | /** |
131 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/BeforePageDisplay |
132 | * Add JavaScript to the page when an image is on it |
133 | * and the user has enabled the feature |
134 | * @param OutputPage $out |
135 | * @param Skin $skin |
136 | */ |
137 | public function onBeforePageDisplay( $out, $skin ): void { |
138 | $pageHasThumbnails = count( $out->getFileSearchOptions() ) > 0; |
139 | $pageIsFilePage = $out->getTitle()->inNamespace( NS_FILE ); |
140 | // TODO: Have Flow work out if there are any images on the page |
141 | $pageIsFlowPage = ExtensionRegistry::getInstance()->isLoaded( 'Flow' ) && |
142 | // CONTENT_MODEL_FLOW_BOARD |
143 | $out->getTitle()->getContentModel() === 'flow-board'; |
144 | $fileRelatedSpecialPages = [ 'Newimages', 'Listfiles', 'Mostimages', |
145 | 'MostGloballyLinkedFiles', 'Uncategorizedimages', 'Unusedimages', 'Search' ]; |
146 | $pageIsFileRelatedSpecialPage = $out->getTitle()->inNamespace( NS_SPECIAL ) |
147 | && in_array( $this->specialPageFactory->resolveAlias( $out->getTitle()->getDBkey() )[0], |
148 | $fileRelatedSpecialPages ); |
149 | |
150 | if ( $pageHasThumbnails || $pageIsFilePage || $pageIsFileRelatedSpecialPage || $pageIsFlowPage ) { |
151 | $this->getModules( $out ); |
152 | } |
153 | } |
154 | |
155 | /** |
156 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/CategoryPageView |
157 | * Add JavaScript to the page if there are images in the category |
158 | * @param CategoryPage $catPage |
159 | */ |
160 | public function onCategoryPageView( $catPage ) { |
161 | $title = $catPage->getTitle(); |
162 | $cat = Category::newFromTitle( $title ); |
163 | if ( $cat->getFileCount() > 0 ) { |
164 | $out = $catPage->getContext()->getOutput(); |
165 | $this->getModules( $out ); |
166 | } |
167 | } |
168 | |
169 | /** |
170 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/GetPreferences |
171 | * Adds a default-enabled preference to gate the feature |
172 | * @param User $user |
173 | * @param array &$prefs |
174 | */ |
175 | public function onGetPreferences( $user, &$prefs ) { |
176 | $prefs['multimediaviewer-enable'] = [ |
177 | 'type' => 'toggle', |
178 | 'label-message' => 'multimediaviewer-optin-pref', |
179 | 'section' => 'rendering/files', |
180 | ]; |
181 | } |
182 | |
183 | /** |
184 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/ResourceLoaderGetConfigVars |
185 | * Export variables used in both PHP and JS to keep DRY |
186 | * @param array &$vars |
187 | * @param string $skin |
188 | * @param Config $config |
189 | */ |
190 | public function onResourceLoaderGetConfigVars( array &$vars, $skin, Config $config ): void { |
191 | $vars['wgMultimediaViewer'] = [ |
192 | 'infoLink' => self::$infoLink, |
193 | 'discussionLink' => self::$discussionLink, |
194 | 'helpLink' => self::$helpLink, |
195 | 'useThumbnailGuessing' => (bool)$this->config->get( 'MediaViewerUseThumbnailGuessing' ), |
196 | 'imageQueryParameter' => $this->config->get( 'MediaViewerImageQueryParameter' ), |
197 | 'recordVirtualViewBeaconURI' => $this->config->get( 'MediaViewerRecordVirtualViewBeaconURI' ), |
198 | 'extensions' => $this->config->get( 'MediaViewerExtensions' ), |
199 | ]; |
200 | $vars['wgMediaViewer'] = true; |
201 | } |
202 | |
203 | /** |
204 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/MakeGlobalVariablesScript |
205 | * Export variables which depend on the current user |
206 | * @param array &$vars |
207 | * @param OutputPage $out |
208 | * @return void |
209 | */ |
210 | public function onMakeGlobalVariablesScript( &$vars, $out ): void { |
211 | $user = $out->getUser(); |
212 | $isMultimediaViewerEnable = $this->userOptionsLookup->getDefaultOption( |
213 | 'multimediaviewer-enable', |
214 | $user |
215 | ); |
216 | |
217 | $vars['wgMediaViewerOnClick'] = $this->shouldHandleClicks( $user ); |
218 | // needed because of T71942; could be different for anon and logged-in |
219 | $vars['wgMediaViewerEnabledByDefault'] = (bool)$isMultimediaViewerEnable; |
220 | } |
221 | |
222 | /** |
223 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/ThumbnailBeforeProduceHTML |
224 | * Modify thumbnail DOM |
225 | * @param ThumbnailImage $thumbnail |
226 | * @param array &$attribs Attributes of the <img> element |
227 | * @param array|bool &$linkAttribs Attributes of the wrapping <a> element |
228 | */ |
229 | public function onThumbnailBeforeProduceHTML( |
230 | $thumbnail, |
231 | &$attribs, |
232 | &$linkAttribs |
233 | ) { |
234 | $file = $thumbnail->getFile(); |
235 | |
236 | if ( $file ) { |
237 | $attribs['data-file-width'] = $file->getWidth(); |
238 | $attribs['data-file-height'] = $file->getHeight(); |
239 | } |
240 | } |
241 | } |