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authorPierre Schmitz <pierre@archlinux.de>2011-06-22 11:28:20 +0200
committerPierre Schmitz <pierre@archlinux.de>2011-06-22 11:28:20 +0200
commit9db190c7e736ec8d063187d4241b59feaf7dc2d1 (patch)
tree46d1a0dee7febef5c2d57a9f7b972be16a163b3d /includes/media/MediaTransformOutput.php
parent78677c7bbdcc9739f6c10c75935898a20e1acd9e (diff)
update to MediaWiki 1.17.0
Diffstat (limited to 'includes/media/MediaTransformOutput.php')
-rw-r--r--includes/media/MediaTransformOutput.php255
1 files changed, 255 insertions, 0 deletions
diff --git a/includes/media/MediaTransformOutput.php b/includes/media/MediaTransformOutput.php
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+<?php
+/**
+ * Base class for the output of file transformation methods.
+ *
+ * @file
+ * @ingroup Media
+ */
+
+/**
+ * Base class for the output of MediaHandler::doTransform() and File::transform().
+ *
+ * @ingroup Media
+ */
+abstract class MediaTransformOutput {
+ var $file, $width, $height, $url, $page, $path;
+
+ /**
+ * Get the width of the output box
+ */
+ function getWidth() {
+ return $this->width;
+ }
+
+ /**
+ * Get the height of the output box
+ */
+ function getHeight() {
+ return $this->height;
+ }
+
+ /**
+ * @return string The thumbnail URL
+ */
+ function getUrl() {
+ return $this->url;
+ }
+
+ /**
+ * @return String: destination file path (local filesystem)
+ */
+ function getPath() {
+ return $this->path;
+ }
+
+ /**
+ * Fetch HTML for this transform output
+ *
+ * @param $options Associative array of options. Boolean options
+ * should be indicated with a value of true for true, and false or
+ * absent for false.
+ *
+ * alt Alternate text or caption
+ * desc-link Boolean, show a description link
+ * file-link Boolean, show a file download link
+ * custom-url-link Custom URL to link to
+ * custom-title-link Custom Title object to link to
+ * valign vertical-align property, if the output is an inline element
+ * img-class Class applied to the <img> tag, if there is such a tag
+ *
+ * For images, desc-link and file-link are implemented as a click-through. For
+ * sounds and videos, they may be displayed in other ways.
+ *
+ * @return string
+ */
+ abstract function toHtml( $options = array() );
+
+ /**
+ * This will be overridden to return true in error classes
+ */
+ function isError() {
+ return false;
+ }
+
+ /**
+ * Wrap some XHTML text in an anchor tag with the given attributes
+ */
+ protected function linkWrap( $linkAttribs, $contents ) {
+ if ( $linkAttribs ) {
+ return Xml::tags( 'a', $linkAttribs, $contents );
+ } else {
+ return $contents;
+ }
+ }
+
+ function getDescLinkAttribs( $title = null, $params = '' ) {
+ $query = $this->page ? ( 'page=' . urlencode( $this->page ) ) : '';
+ if( $params ) {
+ $query .= $query ? '&'.$params : $params;
+ }
+ $attribs = array(
+ 'href' => $this->file->getTitle()->getLocalURL( $query ),
+ 'class' => 'image',
+ );
+ if ( $title ) {
+ $attribs['title'] = $title;
+ }
+ return $attribs;
+ }
+}
+
+
+/**
+ * Media transform output for images
+ *
+ * @ingroup Media
+ */
+class ThumbnailImage extends MediaTransformOutput {
+
+ /**
+ * @param $file File object
+ * @param $url String: URL path to the thumb
+ * @param $width Integer: file's width
+ * @param $height Integer: file's height
+ * @param $path String: filesystem path to the thumb
+ * @param $page Integer: page number, for multipage files
+ * @private
+ */
+ function __construct( $file, $url, $width, $height, $path = false, $page = false ) {
+ $this->file = $file;
+ $this->url = $url;
+ # These should be integers when they get here.
+ # If not, there's a bug somewhere. But let's at
+ # least produce valid HTML code regardless.
+ $this->width = round( $width );
+ $this->height = round( $height );
+ $this->path = $path;
+ $this->page = $page;
+ }
+
+ /**
+ * Return HTML <img ... /> tag for the thumbnail, will include
+ * width and height attributes and a blank alt text (as required).
+ *
+ * @param $options Associative array of options. Boolean options
+ * should be indicated with a value of true for true, and false or
+ * absent for false.
+ *
+ * alt HTML alt attribute
+ * title HTML title attribute
+ * desc-link Boolean, show a description link
+ * file-link Boolean, show a file download link
+ * valign vertical-align property, if the output is an inline element
+ * img-class Class applied to the \<img\> tag, if there is such a tag
+ * desc-query String, description link query params
+ * custom-url-link Custom URL to link to
+ * custom-title-link Custom Title object to link to
+ * custom target-link Value of the target attribute, for custom-target-link
+ *
+ * For images, desc-link and file-link are implemented as a click-through. For
+ * sounds and videos, they may be displayed in other ways.
+ *
+ * @return string
+ */
+ function toHtml( $options = array() ) {
+ if ( count( func_get_args() ) == 2 ) {
+ throw new MWException( __METHOD__ .' called in the old style' );
+ }
+
+ $alt = empty( $options['alt'] ) ? '' : $options['alt'];
+
+ $query = empty( $options['desc-query'] ) ? '' : $options['desc-query'];
+
+ if ( !empty( $options['custom-url-link'] ) ) {
+ $linkAttribs = array( 'href' => $options['custom-url-link'] );
+ if ( !empty( $options['title'] ) ) {
+ $linkAttribs['title'] = $options['title'];
+ }
+ if ( !empty( $options['custom-target-link'] ) ) {
+ $linkAttribs['target'] = $options['custom-target-link'];
+ }
+ } elseif ( !empty( $options['custom-title-link'] ) ) {
+ $title = $options['custom-title-link'];
+ $linkAttribs = array(
+ 'href' => $title->getLinkUrl(),
+ 'title' => empty( $options['title'] ) ? $title->getFullText() : $options['title']
+ );
+ } elseif ( !empty( $options['desc-link'] ) ) {
+ $linkAttribs = $this->getDescLinkAttribs( empty( $options['title'] ) ? null : $options['title'], $query );
+ } elseif ( !empty( $options['file-link'] ) ) {
+ $linkAttribs = array( 'href' => $this->file->getURL() );
+ } else {
+ $linkAttribs = false;
+ }
+
+ $attribs = array(
+ 'alt' => $alt,
+ 'src' => $this->url,
+ 'width' => $this->width,
+ 'height' => $this->height,
+ );
+ if ( !empty( $options['valign'] ) ) {
+ $attribs['style'] = "vertical-align: {$options['valign']}";
+ }
+ if ( !empty( $options['img-class'] ) ) {
+ $attribs['class'] = $options['img-class'];
+ }
+ return $this->linkWrap( $linkAttribs, Xml::element( 'img', $attribs ) );
+ }
+
+}
+
+/**
+ * Basic media transform error class
+ *
+ * @ingroup Media
+ */
+class MediaTransformError extends MediaTransformOutput {
+ var $htmlMsg, $textMsg, $width, $height, $url, $path;
+
+ function __construct( $msg, $width, $height /*, ... */ ) {
+ $args = array_slice( func_get_args(), 3 );
+ $htmlArgs = array_map( 'htmlspecialchars', $args );
+ $htmlArgs = array_map( 'nl2br', $htmlArgs );
+
+ $this->htmlMsg = wfMsgReplaceArgs( htmlspecialchars( wfMsgGetKey( $msg, true ) ), $htmlArgs );
+ $this->textMsg = wfMsgReal( $msg, $args );
+ $this->width = intval( $width );
+ $this->height = intval( $height );
+ $this->url = false;
+ $this->path = false;
+ }
+
+ function toHtml( $options = array() ) {
+ return "<div class=\"MediaTransformError\" style=\"" .
+ "width: {$this->width}px; height: {$this->height}px; display:inline-block;\">" .
+ $this->htmlMsg .
+ "</div>";
+ }
+
+ function toText() {
+ return $this->textMsg;
+ }
+
+ function getHtmlMsg() {
+ return $this->htmlMsg;
+ }
+
+ function isError() {
+ return true;
+ }
+}
+
+/**
+ * Shortcut class for parameter validation errors
+ *
+ * @ingroup Media
+ */
+class TransformParameterError extends MediaTransformError {
+ function __construct( $params ) {
+ parent::__construct( 'thumbnail_error',
+ max( isset( $params['width'] ) ? $params['width'] : 0, 120 ),
+ max( isset( $params['height'] ) ? $params['height'] : 0, 120 ),
+ wfMsg( 'thumbnail_invalid_params' ) );
+ }
+}