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.
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.
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
23 class TraditionalImageGallery
extends ImageGalleryBase
{
25 * Return a HTML representation of the image gallery
27 * For each image in the gallery, display
30 * - the additional text provided when adding the image
31 * - the size of the image
36 if ( $this->mPerRow
> 0 ) {
37 $maxwidth = $this->mPerRow
* ( $this->mWidths +
$this->getAllPadding() );
38 $oldStyle = isset( $this->mAttribs
['style'] ) ?
$this->mAttribs
['style'] : '';
39 # _width is ignored by any sane browser. IE6 doesn't know max-width
40 # so it uses _width instead
41 $this->mAttribs
['style'] = "max-width: {$maxwidth}px;_width: {$maxwidth}px;" .
45 $attribs = Sanitizer
::mergeAttributes(
46 array( 'class' => 'gallery mw-gallery-' . $this->mMode
), $this->mAttribs
);
48 $modules = $this->getModules();
49 $modules[] = 'mediawiki.page.gallery.styles';
51 if ( $this->mParser
) {
52 $this->mParser
->getOutput()->addModules( $modules );
54 $this->getOutput()->addModules( $modules );
56 $output = Xml
::openElement( 'ul', $attribs );
57 if ( $this->mCaption
) {
58 $output .= "\n\t<li class='gallerycaption'>{$this->mCaption}</li>";
61 $lang = $this->getRenderLang();
62 # Output each image...
63 foreach ( $this->mImages
as $pair ) {
66 $text = $pair[1]; # "text" means "caption" here
71 if ( $nt->getNamespace() === NS_FILE
) {
73 if ( $this->mParser
instanceof Parser
) {
74 # Give extensions a chance to select the file revision for us
76 Hooks
::run( 'BeforeParserFetchFileAndTitle',
77 array( $this->mParser
, $nt, &$options, &$descQuery ) );
78 # Fetch and register the file (file title may be different via hooks)
79 list( $img, $nt ) = $this->mParser
->fetchFileAndTitle( $nt, $options );
81 $img = wfFindFile( $nt );
87 $params = $this->getThumbParams( $img );
88 // $pair[4] is per image handler options
89 $transformOptions = $params +
$pair[4];
94 # We're dealing with a non-image, spit out the name and be done with it.
95 $thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: '
96 . ( $this->getThumbPadding() +
$this->mHeights
) . 'px;">'
97 . htmlspecialchars( $nt->getText() ) . '</div>';
99 if ( $this->mParser
instanceof Parser
) {
100 $this->mParser
->addTrackingCategory( 'broken-file-category' );
102 } elseif ( $this->mHideBadImages
103 && wfIsBadImage( $nt->getDBkey(), $this->getContextTitle() )
105 # The image is blacklisted, just show it as a text link.
106 $thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: ' .
107 ( $this->getThumbPadding() +
$this->mHeights
) . 'px;">' .
110 htmlspecialchars( $nt->getText() )
113 } elseif ( !( $thumb = $img->transform( $transformOptions ) ) ) {
114 # Error generating thumbnail.
115 $thumbhtml = "\n\t\t\t" . '<div class="thumb" style="height: '
116 . ( $this->getThumbPadding() +
$this->mHeights
) . 'px;">'
117 . htmlspecialchars( $img->getLastError() ) . '</div>';
119 /** @var MediaTransformOutput $thumb */
120 $vpad = $this->getVPad( $this->mHeights
, $thumb->getHeight() );
122 $imageParameters = array(
124 'desc-query' => $descQuery,
126 'custom-url-link' => $link
129 // In the absence of both alt text and caption, fall back on
130 // providing screen readers with the filename as alt text
131 if ( $alt == '' && $text == '' ) {
132 $imageParameters['alt'] = $nt->getText();
135 $this->adjustImageParameters( $thumb, $imageParameters );
137 Linker
::processResponsiveImages( $img, $thumb, $transformOptions );
139 # Set both fixed width and min-height.
140 $thumbhtml = "\n\t\t\t"
141 . '<div class="thumb" style="width: '
142 . $this->getThumbDivWidth( $thumb->getWidth() ) . 'px;">'
143 # Auto-margin centering for block-level elements. Needed
144 # now that we have video handlers since they may emit block-
145 # level elements as opposed to simple <img> tags. ref
146 # http://css-discuss.incutio.com/?page=CenteringBlockElement
147 . '<div style="margin:' . $vpad . 'px auto;">'
148 . $thumb->toHtml( $imageParameters ) . '</div></div>';
150 // Call parser transform hook
151 /** @var MediaHandler $handler */
152 $handler = $img->getHandler();
153 if ( $this->mParser
&& $handler ) {
154 $handler->parserTransformHook( $this->mParser
, $img );
158 // @todo Code is incomplete.
159 // $linkTarget = Title::newFromText( $wgContLang->getNsText( MWNamespace::getUser() ) .
161 // $ul = Linker::link( $linkTarget, $ut );
163 if ( $this->mShowBytes
) {
165 $fileSize = htmlspecialchars( $lang->formatSize( $img->getSize() ) );
167 $fileSize = $this->msg( 'filemissing' )->escaped();
169 $fileSize = "$fileSize<br />\n";
174 $textlink = $this->mShowFilename ?
177 htmlspecialchars( $lang->truncate( $nt->getText(), $this->mCaptionLength
) )
181 $galleryText = $textlink . $text . $fileSize;
182 $galleryText = $this->wrapGalleryText( $galleryText, $thumb );
184 # Weird double wrapping (the extra div inside the li) needed due to FF2 bug
185 # Can be safely removed if FF2 falls completely out of existence
186 $output .= "\n\t\t" . '<li class="gallerybox" style="width: '
187 . $this->getGBWidth( $thumb ) . 'px">'
188 . '<div style="width: ' . $this->getGBWidth( $thumb ) . 'px">'
191 . "\n\t\t</div></li>";
193 $output .= "\n</ul>";
199 * Add the wrapper html around the thumb's caption
201 * @param string $galleryText The caption
202 * @param MediaTransformOutput|bool $thumb The thumb this caption is for
203 * or false for bad image.
206 protected function wrapGalleryText( $galleryText, $thumb ) {
207 # ATTENTION: The newline after <div class="gallerytext"> is needed to
208 # accommodate htmltidy which in version 4.8.6 generated crackpot html in
209 # its absence, see: https://phabricator.wikimedia.org/T3765
212 return "\n\t\t\t" . '<div class="gallerytext">' . "\n"
218 * How much padding such the thumb have between image and inner div that
219 * that contains the border. This is both for verical and horizontal
220 * padding. (However, it is cut in half in the vertical direction).
223 protected function getThumbPadding() {
228 * @note GB stands for gallerybox (as in the <li class="gallerybox"> element)
232 protected function getGBPadding() {
237 * Get how much extra space the borders around the image takes up.
239 * For this mode, it is 2px borders on each side + 2px implied padding on
240 * each side from the stylesheet, giving us 2*2+2*2 = 8.
243 protected function getGBBorders() {
250 * @return int Number of pixels of whitespace surrounding the thumbnail.
252 protected function getAllPadding() {
253 return $this->getThumbPadding() +
$this->getGBPadding() +
$this->getGBBorders();
257 * Get vertical padding for a thumbnail
259 * Generally this is the total height minus how high the thumb is.
261 * @param int $boxHeight How high we want the box to be.
262 * @param int $thumbHeight How high the thumbnail is.
263 * @return int Vertical padding to add on each side.
265 protected function getVPad( $boxHeight, $thumbHeight ) {
266 return ( $this->getThumbPadding() +
$boxHeight - $thumbHeight ) / 2;
270 * Get the transform parameters for a thumbnail.
272 * @param File $img The file in question. May be false for invalid image
275 protected function getThumbParams( $img ) {
277 'width' => $this->mWidths
,
278 'height' => $this->mHeights
283 * Get the width of the inner div that contains the thumbnail in
284 * question. This is the div with the class of "thumb".
286 * @param int $thumbWidth The width of the thumbnail.
287 * @return int Width of inner thumb div.
289 protected function getThumbDivWidth( $thumbWidth ) {
290 return $this->mWidths +
$this->getThumbPadding();
294 * Width of gallerybox <li>.
296 * Generally is the width of the image, plus padding on image
297 * plus padding on gallerybox.
299 * @note Important: parameter will be false if no thumb used.
300 * @param MediaTransformOutput|bool $thumb MediaTransformObject object or false.
301 * @return int Width of gallerybox element
303 protected function getGBWidth( $thumb ) {
304 return $this->mWidths +
$this->getThumbPadding() +
$this->getGBPadding();
308 * Get a list of modules to include in the page.
310 * Primarily intended for subclasses.
312 * @return array Modules to include
314 protected function getModules() {
319 * Adjust the image parameters for a thumbnail.
321 * Used by a subclass to insert extra high resolution images.
322 * @param MediaTransformOutput $thumb The thumbnail
323 * @param array $imageParameters Array of options
325 protected function adjustImageParameters( $thumb, &$imageParameters ) {
330 * Backwards compatibility. This always uses traditional mode
331 * if called the old way, for extensions that may expect traditional
334 * @deprecated since 1.22 Use ImageGalleryBase::factory instead.
336 class ImageGallery
extends TraditionalImageGallery
{
337 function __construct( $mode = 'traditional' ) {
338 wfDeprecated( __METHOD__
, '1.22' );
339 parent
::__construct( $mode );