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<?php
/*
* This file is part of the MediaWiki extension MultimediaViewer.
*
* MultimediaViewer is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* MultimediaViewer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>.
*
* @file
* @ingroup extensions
* @author Mark Holmquist <mtraceur@member.fsf.org>
* @copyright Copyright © 2013, Mark Holmquist
*/
class MultimediaViewerHooks {
/** Link to more information about this module */
protected static $infoLink = '//mediawiki.org/wiki/Special:MyLanguage/Extension:Media_Viewer/About';
/** Link to a page where this module can be discussed */
protected static $discussionLink = '//mediawiki.org/wiki/Special:MyLanguage/Extension_talk:Media_Viewer/About';
/** Link to help about this module */
protected static $helpLink = '//mediawiki.org/wiki/Special:MyLanguage/Help:Extension:Media_Viewer';
public static function registerExtension() {
global $wgMediaViewerNetworkPerformanceSamplingFactor, $wgMediaViewerDurationLoggingSamplingFactor,
$wgMediaViewerDurationLoggingLoggedinSamplingFactor, $wgMediaViewerAttributionLoggingSamplingFactor,
$wgMediaViewerDimensionLoggingSamplingFactor, $wgMediaViewerActionLoggingSamplingFactorMap,
$wgMediaViewerIsInBeta, $wgMediaViewerUseThumbnailGuessing, $wgMediaViewerEnableByDefault,
$wgMediaViewerEnableByDefaultForAnonymous, $wgMediaViewerImageQueryParameter,
$wgMediaViewerRecordVirtualViewBeaconURI;
if ( !isset( $wgMediaViewerNetworkPerformanceSamplingFactor ) ) {
/** @var int|bool: If set, records image load network performance via EventLogging once per this many requests. False if unset. **/
$wgMediaViewerNetworkPerformanceSamplingFactor = false;
}
if ( !isset( $wgMediaViewerDurationLoggingSamplingFactor ) ) {
/**
* If set, records loading times via EventLogging. A value of 1000 means there will be an
* 1:1000 chance to log the duration event.
* False if unset.
* @var int|bool
*/
$wgMediaViewerDurationLoggingSamplingFactor = false;
}
if ( !isset( $wgMediaViewerDurationLoggingLoggedinSamplingFactor ) ) {
/**
* If set, records loading times via EventLogging with factor specific to loggedin users.
* A value of 1000 means there will be an 1:1000 chance to log the duration event.
* False if unset.
* @var int|bool
*/
$wgMediaViewerDurationLoggingLoggedinSamplingFactor = false;
}
if ( !isset( $wgMediaViewerAttributionLoggingSamplingFactor ) ) {
/**
* If set, records whether image attribution data was available. A value of 1000 means there will be an
* 1:1000 chance to log the attribution event.
* False if unset.
* @var int|bool
*/
$wgMediaViewerAttributionLoggingSamplingFactor = false;
}
if ( !isset( $wgMediaViewerDimensionLoggingSamplingFactor ) ) {
/**
* If set, records whether image dimension data was available. A value of 1000 means there will be an
* 1:1000 chance to log the dimension event.
* False if unset.
* @var int|bool
*/
$wgMediaViewerDimensionLoggingSamplingFactor = false;
}
if ( !isset( $wgMediaViewerActionLoggingSamplingFactorMap ) ) {
/**
* If set, records user actions via EventLogging and applies a sampling factor according to the map. A "default" key in the map must be set.
* False if unset.
* @var array|bool
*/
$wgMediaViewerActionLoggingSamplingFactorMap = false;
}
if ( !isset( $wgMediaViewerIsInBeta ) ) {
/** @var bool: If set, Media Viewer will try to use BetaFeatures. False if unset. **/
$wgMediaViewerIsInBeta = false;
}
if ( !isset( $wgMediaViewerUseThumbnailGuessing ) ) {
/**
* When this is enabled, MediaViewer will try to guess image URLs instead of making an
* imageinfo API to get them from the server. This speeds up image loading, but will result in 404s
* when $wgGenerateThumbnailOnParse (so the thumbnails are only generated as a result of the API request).
* MediaViewer will catch such 404 errors and fall back to the API request, but depending on how the site
* is set up, the 404 might get cached, or redirected, causing the image load to fail. The safe way to
* use URL guessing is with a 404 handler: https://www.mediawiki.org/wiki/Manual:Thumb.php#404_Handler
*
* @var bool
*/
$wgMediaViewerUseThumbnailGuessing = false;
}
if ( !isset( $wgMediaViewerEnableByDefault ) ) {
/**
* If trueish, and $wgMediaViewerIsInBeta is unset, Media Viewer will be turned on by default.
* @var bool
*/
$wgMediaViewerEnableByDefault = true;
}
if ( !isset( $wgMediaViewerEnableByDefaultForAnonymous ) ) {
/**
* If set, overrides $wgMediaViewerEnableByDefault for anonymous users.
* @var bool
*/
$wgMediaViewerEnableByDefaultForAnonymous = $wgMediaViewerEnableByDefault;
}
if ( !isset( $wgMediaViewerImageQueryParameter ) ) {
/**
* If set, adds a query parameter to image requests made by Media Viewer
* @var string|bool
*/
$wgMediaViewerImageQueryParameter = false;
}
if ( !isset( $wgMediaViewerRecordVirtualViewBeaconURI ) ) {
/**
* If set, records a virtual view via the provided beacon URI.
* @var string|bool
*/
$wgMediaViewerRecordVirtualViewBeaconURI = false;
}
}
public static function onExtensionFunctions() {
global $wgResourceModules, $wgDefaultUserOptions, $wgMediaViewerEnableByDefault;
if ( isset( $wgResourceModules['ext.eventLogging'] ) ) {
$wgResourceModules['mmv.lightboxinterface']['dependencies'][] = 'ext.eventLogging';
$wgResourceModules['mmv']['dependencies'][] = 'ext.eventLogging';
$wgResourceModules['mmv.bootstrap.autostart']['dependencies'][] = 'ext.eventLogging';
}
if ( $wgMediaViewerEnableByDefault ) {
$wgDefaultUserOptions['multimediaviewer-enable'] = true;
}
}
public static function onEventLoggingRegisterSchemas( array &$schemas ) {
$schemas += array(
'MediaViewer' => 10867062,
'MultimediaViewerNetworkPerformance' => 15573630,
'MultimediaViewerDuration' => 10427980,
'MultimediaViewerAttribution' => 9758179,
'MultimediaViewerDimensions' => 10014238,
);
}
/**
* Checks the context for whether to load the viewer.
* @param User $user
* @return bool
*/
protected static function shouldHandleClicks( $user ) {
global $wgMediaViewerIsInBeta, $wgMediaViewerEnableByDefaultForAnonymous;
if ( $wgMediaViewerIsInBeta && class_exists( 'BetaFeatures' ) ) {
return BetaFeatures::isFeatureEnabled( $user, 'multimedia-viewer' );
}
if ( !$user->isLoggedIn() && isset( $wgMediaViewerEnableByDefaultForAnonymous ) ) {
return (bool)$wgMediaViewerEnableByDefaultForAnonymous;
} else {
return (bool)$user->getOption( 'multimediaviewer-enable' );
}
}
/**
* Handler for all places where we add the modules
* Could be on article pages or on Category pages
* @param OutputPage $out
* @return bool
*/
protected static function getModules( &$out ) {
$out->addModules( array( 'mmv.head', 'mmv.bootstrap.autostart' ) );
return true;
}
/**
* Handler for BeforePageDisplay hook
* Add JavaScript to the page when an image is on it
* and the user has enabled the feature if BetaFeatures is installed
* @param OutputPage $out
* @param Skin $skin
* @return bool
*/
public static function getModulesForArticle( &$out, &$skin ) {
$pageHasThumbnails = count( $out->getFileSearchOptions() ) > 0;
$pageIsFilePage = $out->getTitle()->inNamespace( NS_FILE );
$fileRelatedSpecialPages = array( 'NewFiles', 'ListFiles', 'MostLinkedFiles',
'MostGloballyLinkedFiles', 'UncategorizedFiles', 'UnusedFiles' );
$pageIsFileRelatedSpecialPage = $out->getTitle()->inNamespace( NS_SPECIAL )
&& in_array( $out->getTitle()->getText(), $fileRelatedSpecialPages );
if ( $pageHasThumbnails || $pageIsFilePage || $pageIsFileRelatedSpecialPage ) {
return self::getModules( $out );
}
return true;
}
/**
* Handler for CategoryPageView hook
* Add JavaScript to the page if there are images in the category
* @param CategoryPage $catPage
* @return bool
*/
public static function getModulesForCategory( &$catPage ) {
$title = $catPage->getTitle();
$cat = Category::newFromTitle( $title );
if ( $cat->getFileCount() > 0 ) {
$out = $catPage->getContext()->getOutput();
return self::getModules( $out );
}
return true;
}
// Add a beta preference to gate the feature
public static function getBetaPreferences( $user, &$prefs ) {
global $wgExtensionAssetsPath, $wgMediaViewerIsInBeta;
if ( !$wgMediaViewerIsInBeta ) {
return true;
}
$prefs['multimedia-viewer'] = array(
'label-message' => 'multimediaviewer-pref',
'desc-message' => 'multimediaviewer-pref-desc',
'info-link' => self::$infoLink,
'discussion-link' => self::$discussionLink,
'help-link' => self::$helpLink,
'screenshot' => array(
'ltr' => "$wgExtensionAssetsPath/MultimediaViewer/viewer-ltr.svg",
'rtl' => "$wgExtensionAssetsPath/MultimediaViewer/viewer-rtl.svg",
),
);
return true;
}
// Adds a default-enabled preference to gate the feature on non-beta sites
public static function getPreferences( $user, &$prefs ) {
global $wgMediaViewerIsInBeta;
if ( !$wgMediaViewerIsInBeta ) {
$prefs['multimediaviewer-enable'] = array(
'type' => 'toggle',
'label-message' => 'multimediaviewer-optin-pref',
'section' => 'rendering/files',
);
}
return true;
}
/**
* Export variables used in both PHP and JS to keep DRY
* @param array $vars
* @return bool
*/
public static function resourceLoaderGetConfigVars( &$vars ) {
global $wgMediaViewerActionLoggingSamplingFactorMap, $wgMediaViewerNetworkPerformanceSamplingFactor,
$wgMediaViewerDurationLoggingSamplingFactor, $wgMediaViewerDurationLoggingLoggedinSamplingFactor,
$wgMediaViewerAttributionLoggingSamplingFactor, $wgMediaViewerDimensionLoggingSamplingFactor,
$wgMediaViewerIsInBeta, $wgMediaViewerUseThumbnailGuessing, $wgMediaViewerImageQueryParameter,
$wgMediaViewerRecordVirtualViewBeaconURI, $wgMediaViewerExtensions;
$vars['wgMultimediaViewer'] = array(
'infoLink' => self::$infoLink,
'discussionLink' => self::$discussionLink,
'helpLink' => self::$helpLink,
'useThumbnailGuessing' => (bool)$wgMediaViewerUseThumbnailGuessing,
'durationSamplingFactor' => $wgMediaViewerDurationLoggingSamplingFactor,
'durationSamplingFactorLoggedin' => $wgMediaViewerDurationLoggingLoggedinSamplingFactor,
'networkPerformanceSamplingFactor' => $wgMediaViewerNetworkPerformanceSamplingFactor,
'actionLoggingSamplingFactorMap' => $wgMediaViewerActionLoggingSamplingFactorMap,
'attributionSamplingFactor' => $wgMediaViewerAttributionLoggingSamplingFactor,
'dimensionSamplingFactor' => $wgMediaViewerDimensionLoggingSamplingFactor,
'imageQueryParameter' => $wgMediaViewerImageQueryParameter,
'recordVirtualViewBeaconURI' => $wgMediaViewerRecordVirtualViewBeaconURI,
'tooltipDelay' => 1000,
'extensions' => $wgMediaViewerExtensions,
);
$vars['wgMediaViewer'] = true;
$vars['wgMediaViewerIsInBeta'] = $wgMediaViewerIsInBeta;
return true;
}
/**
* Export variables which depend on the current user
* @param $vars
* @param OutputPage $out
*/
public static function makeGlobalVariablesScript( &$vars, OutputPage $out ) {
global $wgDefaultUserOptions;
$user = $out->getUser();
$vars['wgMediaViewerOnClick'] = self::shouldHandleClicks( $user );
// needed because of bug 69942; could be different for anon and logged-in
$vars['wgMediaViewerEnabledByDefault'] = !empty( $wgDefaultUserOptions['multimediaviewer-enable'] );
}
/**
* Get modules for testing our JavaScript
* @param array $testModules
* @param ResourceLoader &$resourceLoader
* @return bool
*/
public static function getTestModules( array &$testModules, ResourceLoader &$resourceLoader ) {
$testModules['qunit']['mmv.tests'] = array(
'scripts' => array(
'tests/qunit/mmv/mmv.bootstrap.test.js',
'tests/qunit/mmv/mmv.test.js',
'tests/qunit/mmv/mmv.lightboxinterface.test.js',
'tests/qunit/mmv/mmv.lightboximage.test.js',
'tests/qunit/mmv/mmv.ThumbnailWidthCalculator.test.js',
'tests/qunit/mmv/mmv.EmbedFileFormatter.test.js',
'tests/qunit/mmv/mmv.Config.test.js',
'tests/qunit/mmv/mmv.HtmlUtils.test.js',
'tests/qunit/mmv/logging/mmv.logging.DurationLogger.test.js',
'tests/qunit/mmv/logging/mmv.logging.PerformanceLogger.test.js',
'tests/qunit/mmv/logging/mmv.logging.ActionLogger.test.js',
'tests/qunit/mmv/logging/mmv.logging.AttributionLogger.test.js',
'tests/qunit/mmv/logging/mmv.logging.DimensionLogger.test.js',
'tests/qunit/mmv/logging/mmv.logging.ViewLogger.test.js',
'tests/qunit/mmv/model/mmv.model.test.js',
'tests/qunit/mmv/model/mmv.model.IwTitle.test.js',
'tests/qunit/mmv/model/mmv.model.TaskQueue.test.js',
'tests/qunit/mmv/model/mmv.model.License.test.js',
'tests/qunit/mmv/model/mmv.model.Image.test.js',
'tests/qunit/mmv/model/mmv.model.Repo.test.js',
'tests/qunit/mmv/model/mmv.model.EmbedFileInfo.test.js',
'tests/qunit/mmv/provider/mmv.provider.Api.test.js',
'tests/qunit/mmv/provider/mmv.provider.ImageInfo.test.js',
'tests/qunit/mmv/provider/mmv.provider.FileRepoInfo.test.js',
'tests/qunit/mmv/provider/mmv.provider.ThumbnailInfo.test.js',
'tests/qunit/mmv/provider/mmv.provider.GuessedThumbnailInfo.test.js',
'tests/qunit/mmv/provider/mmv.provider.Image.test.js',
'tests/qunit/mmv/routing/mmv.routing.MainFileRoute.test.js',
'tests/qunit/mmv/routing/mmv.routing.ThumbnailRoute.test.js',
'tests/qunit/mmv/routing/mmv.routing.Router.test.js',
'tests/qunit/mmv/ui/mmv.ui.test.js',
'tests/qunit/mmv/ui/mmv.ui.canvas.test.js',
'tests/qunit/mmv/ui/mmv.ui.canvasButtons.test.js',
'tests/qunit/mmv/ui/mmv.ui.description.test.js',
'tests/qunit/mmv/ui/mmv.ui.download.pane.test.js',
'tests/qunit/mmv/ui/mmv.ui.metadataPanel.test.js',
'tests/qunit/mmv/ui/mmv.ui.metadataPanelScroller.test.js',
'tests/qunit/mmv/ui/mmv.ui.progressBar.test.js',
'tests/qunit/mmv/ui/mmv.ui.permission.test.js',
'tests/qunit/mmv/ui/mmv.ui.stripeButtons.test.js',
'tests/qunit/mmv/ui/mmv.ui.reuse.dialog.test.js',
'tests/qunit/mmv/ui/mmv.ui.reuse.embed.test.js',
'tests/qunit/mmv/ui/mmv.ui.reuse.share.test.js',
'tests/qunit/mmv/ui/mmv.ui.reuse.tab.test.js',
'tests/qunit/mmv/ui/mmv.ui.reuse.utils.test.js',
'tests/qunit/mmv/ui/mmv.ui.tipsyDialog.test.js',
'tests/qunit/mmv/ui/mmv.ui.truncatableTextField.test.js',
'tests/qunit/mmv/ui/mmv.ui.viewingOptions.test.js',
'tests/qunit/mmv/mmv.testhelpers.js',
),
'dependencies' => array(
'mmv.head',
'mmv.bootstrap',
'mmv',
'mmv.ui.ondemandshareddependencies',
'mmv.ui.reuse.shareembed',
'mmv.ui.download.pane',
'mmv.ui.tipsyDialog',
'moment',
),
'localBasePath' => __DIR__,
'remoteExtPath' => 'MultimediaViewer',
);
return true;
}
/**
* Modify thumbnail DOM
* @param ThumbnailImage $thumbnail
* @param array $attribs Attributes of the <img> element
* @param array|boolean $linkAttribs Attributes of the wrapping <a> element
*/
public static function thumbnailBeforeProduceHTML( ThumbnailImage $thumbnail, array &$attribs, &$linkAttribs ) {
$file = $thumbnail->getFile();
if ( $file ) {
// At the moment all classes that extend File have getWidth() and getHeight()
// but since the File class doesn't have these methods defined, this check
// is more future-proof
if ( method_exists( $file, 'getWidth' ) ) {
$attribs['data-file-width'] = $file->getWidth();
}
if ( method_exists( $file, 'getHeight' ) ) {
$attribs['data-file-height'] = $file->getHeight();
}
}
return true;
}
}