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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 MediaWiki\Category\Category; |
28 | use MediaWiki\Config\Config; |
29 | use MediaWiki\Hook\ThumbnailBeforeProduceHTMLHook; |
30 | use MediaWiki\Output\Hook\BeforePageDisplayHook; |
31 | use MediaWiki\Output\Hook\MakeGlobalVariablesScriptHook; |
32 | use MediaWiki\Output\OutputPage; |
33 | use MediaWiki\Page\Hook\CategoryPageViewHook; |
34 | use MediaWiki\Preferences\Hook\GetPreferencesHook; |
35 | use MediaWiki\Registration\ExtensionRegistry; |
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.bootstrap' ] ); |
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 | } |