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<?php
class EchoIcon {
/**
* @param string $icon Name of icon as registered in BeforeCreateEchoEvent hook
* @param string $dir either 'ltr' or 'rtl'
* @return string
*/
public static function getUrl( $icon, $dir ) {
global $wgEchoNotificationIcons, $wgExtensionAssetsPath;
if ( !isset( $wgEchoNotificationIcons[$icon] ) ) {
throw new InvalidArgumentException( "The $icon icon is not registered" );
}
$iconInfo = $wgEchoNotificationIcons[$icon];
$needsPrefixing = true;
// Now we need to check it has a valid url/path
if ( isset( $iconInfo['url'] ) && $iconInfo['url'] ) {
$iconUrl = $iconInfo['url'];
$needsPrefixing = false;
} elseif ( isset( $iconInfo['path'] ) && $iconInfo['path'] ) {
$iconUrl = $iconInfo['path'];
} else {
// Fallback to hardcoded 'placeholder'. This is used if someone
// doesn't configure the 'site' icon for example.
$icon = 'placeholder';
$iconUrl = $wgEchoNotificationIcons['placeholder']['path'];
}
// Might be an array with different icons for ltr/rtl
if ( is_array( $iconUrl ) ) {
if ( !isset( $iconUrl[$dir] ) ) {
throw new UnexpectedValueException( "Icon type $icon doesn't have an icon for $dir directionality" );
}
$iconUrl = $iconUrl[$dir];
}
// And if it was a 'path', stick the assets path in front
if ( $needsPrefixing ) {
$iconUrl = "$wgExtensionAssetsPath/$iconUrl";
}
return $iconUrl;
}
/**
* Get a link to a rasterized version of the icon
*
* @param string $icon Icon name
* @param string $lang
* @return string URL to the rasterized version of the icon
*/
public static function getRasterizedUrl( $icon, $lang ) {
global $wgEchoNotificationIcons;
if ( !isset( $wgEchoNotificationIcons[$icon] ) ) {
throw new InvalidArgumentException( "The $icon icon is not registered" );
}
$url = isset( $wgEchoNotificationIcons[ $icon ][ 'url' ] ) ?
$wgEchoNotificationIcons[ $icon ][ 'url' ] :
null;
// If the defined URL is explicitly false, use placeholder
if ( $url === false ) {
$icon = 'placeholder';
}
// If the URL is null or false call the resource loader
// rasterizing module
if ( $url === false || $url === null ) {
$iconUrl = wfScript( 'load' ) . '?' . wfArrayToCgi( [
'modules' => 'ext.echo.emailicons',
'image' => $icon,
'lang' => $lang,
'format' => 'rasterized'
] );
} else {
// For icons that are defined by URL
$iconUrl = $wgEchoNotificationIcons[ $icon ][ 'url' ];
}
return $iconUrl;
}
}
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