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| 1 | <?php |
| 2 | /** |
| 3 | * Packed image gallery. All images adjusted to be same height. |
| 4 | * |
| 5 | * This program 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 | * This program 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 along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 18 | * http://www.gnu.org/copyleft/gpl.html |
| 19 | * |
| 20 | * @file |
| 21 | */ |
| 22 | |
| 23 | use MediaWiki\Context\IContextSource; |
| 24 | |
| 25 | class PackedImageGallery extends TraditionalImageGallery { |
| 26 | public function __construct( $mode = 'traditional', IContextSource $context = null ) { |
| 27 | parent::__construct( $mode, $context ); |
| 28 | // Does not support per row option. |
| 29 | $this->mPerRow = 0; |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * We artificially have 1.5 the resolution necessary so that |
| 34 | * we can scale it up by that much on the client side, without |
| 35 | * worrying about requesting a new image. |
| 36 | */ |
| 37 | private const SCALE_FACTOR = 1.5; |
| 38 | |
| 39 | protected function getVPad( $boxHeight, $thumbHeight ) { |
| 40 | return ( $this->getThumbPadding() + $boxHeight - $thumbHeight / self::SCALE_FACTOR ) / 2; |
| 41 | } |
| 42 | |
| 43 | protected function getThumbPadding() { |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | protected function getGBPadding() { |
| 48 | return 2; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * @param File|false $img The file being transformed. May be false |
| 53 | * @return array |
| 54 | */ |
| 55 | protected function getThumbParams( $img ) { |
| 56 | if ( $img && $img->getMediaType() === MEDIATYPE_AUDIO ) { |
| 57 | $width = $this->mWidths; |
| 58 | } else { |
| 59 | // We want the width not to be the constraining |
| 60 | // factor, so use random big number. |
| 61 | $width = $this->mHeights * 10 + 100; |
| 62 | } |
| 63 | |
| 64 | // self::SCALE_FACTOR so the js has some room to manipulate sizes. |
| 65 | return [ |
| 66 | 'width' => (int)floor( $width * self::SCALE_FACTOR ), |
| 67 | 'height' => (int)floor( $this->mHeights * self::SCALE_FACTOR ), |
| 68 | ]; |
| 69 | } |
| 70 | |
| 71 | protected function getThumbDivWidth( $thumbWidth ) { |
| 72 | // Require at least 60px wide, so caption is wide enough to work. |
| 73 | if ( $thumbWidth < 60 * self::SCALE_FACTOR ) { |
| 74 | $thumbWidth = 60 * self::SCALE_FACTOR; |
| 75 | } |
| 76 | |
| 77 | return $thumbWidth / self::SCALE_FACTOR + $this->getThumbPadding(); |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @param MediaTransformOutput|false $thumb The thumbnail, or false if no |
| 82 | * thumb (which can happen) |
| 83 | * @return float |
| 84 | */ |
| 85 | protected function getGBWidth( $thumb ) { |
| 86 | $thumbWidth = $thumb ? $thumb->getWidth() : $this->mWidths * self::SCALE_FACTOR; |
| 87 | |
| 88 | return $this->getThumbDivWidth( $thumbWidth ) + $this->getGBPadding(); |
| 89 | } |
| 90 | |
| 91 | protected function adjustImageParameters( $thumb, &$imageParameters ) { |
| 92 | // Re-adjust back to normal size. |
| 93 | $imageParameters['override-width'] = ceil( $thumb->getWidth() / self::SCALE_FACTOR ); |
| 94 | $imageParameters['override-height'] = ceil( $thumb->getHeight() / self::SCALE_FACTOR ); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Add javascript which auto-justifies the rows by manipulating the image sizes. |
| 99 | * Also ensures that the hover version of this degrades gracefully. |
| 100 | * @return array |
| 101 | */ |
| 102 | protected function getModules() { |
| 103 | return [ 'mediawiki.page.gallery' ]; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Do not support per-row on packed. It really doesn't work |
| 108 | * since the images have varying widths. |
| 109 | * @param int $num |
| 110 | */ |
| 111 | public function setPerRow( $num ) { |
| 112 | } |
| 113 | } |