Brion VIBBER has uploaded a new change for review.
https://gerrit.wikimedia.org/r/286523
Change subject: Whitelist rasterized SVG images for srcset density-responsive
output
......................................................................
Whitelist rasterized SVG images for srcset density-responsive output
SVG rasterizations are usually diagrams that compress well, and
benefit more from the higher resolution output than photos do.
Can add other types in $wgMFResponseImageWhitelist.
Bug: T133496
Change-Id: Ib338198315b8c74133eac56be20603012b8f9a3f
---
M extension.json
M includes/MobileFrontend.hooks.php
2 files changed, 24 insertions(+), 7 deletions(-)
git pull ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/MobileFrontend
refs/changes/23/286523/1
diff --git a/extension.json b/extension.json
index a21447d..ba96376 100644
--- a/extension.json
+++ b/extension.json
@@ -2063,7 +2063,11 @@
"@MinervaAlwaysShowLanguageButton": "Whether to show the
language switcher button even if no languages are available for the page.",
"MinervaAlwaysShowLanguageButton": true,
"@MFStripResponsiveImages": "Whether to strip 'srcset'
attributes from all images on mobile renderings. This can be used as a sort of
brute-force bandwidth optimization at the cost of making images fuzzier on most
devices.",
- "MFStripResponsiveImages": false
+ "MFStripResponsiveImages": false,
+ "@MFResponseImageWhitelist": "Whitelist of thumbnail file
extensions to retain srcset attributes on when using
$wgMFStripResponsiveImages. Defaults to allow rasterized SVGs since they
usually are diagrams that compress well and benefit from the higher
resolution.",
+ "MFResponseImageWhitelist": [
+ ".svg.png"
+ ]
},
"manifest_version": 1
}
diff --git a/includes/MobileFrontend.hooks.php
b/includes/MobileFrontend.hooks.php
index e7d342e..e32b55b 100644
--- a/includes/MobileFrontend.hooks.php
+++ b/includes/MobileFrontend.hooks.php
@@ -1306,13 +1306,26 @@
*/
public static function onThumbnailBeforeProduceHTML( $thumbnail,
&$attribs, &$linkAttribs ) {
if ( MobileContext::singleton()->shouldDisplayMobileView() ) {
- global $wgMFStripResponsiveImages;
+ global $wgMFStripResponsiveImages,
$wgMFResponseImageWhitelist;
if ( $wgMFStripResponsiveImages ) {
- // Remove all responsive image 'srcset'
attributes.
- // Note that in future, srcset may be used for
specifying
- // small-screen-friendly image variants as well
as density
- // variants, so this should be used with
caution.
- unset( $attribs['srcset'] );
+ $whitelisted = false;
+ $url = $thumbnail->getUrl();
+ if ( is_string( $url ) ) {
+ foreach ( $wgMFResponseImageWhitelist
as $ext ) {
+ $len = strlen( $ext );
+ if ( substr_compare( $url,
$ext, -$len, $len, /* case-insensitive */ true ) === 0 ) {
+ $whitelisted = true;
+ }
+ }
+ }
+ if ( !$whitelisted ) {
+ // Remove all responsive image 'srcset'
attributes, except
+ // from SVG->PNG renderings which
usually aren't too huge.
+ // Note that in future, srcset may be
used for specifying
+ // small-screen-friendly image variants
as well as density
+ // variants, so this should be used
with caution.
+ unset( $attribs['srcset'] );
+ }
}
}
}
--
To view, visit https://gerrit.wikimedia.org/r/286523
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib338198315b8c74133eac56be20603012b8f9a3f
Gerrit-PatchSet: 1
Gerrit-Project: mediawiki/extensions/MobileFrontend
Gerrit-Branch: master
Gerrit-Owner: Brion VIBBER <br...@wikimedia.org>
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