* than the supported will result in the content_width size or 500 if that is
* not set.
*
- * Finally, there is a filter named, 'editor_max_image_size' that will be called
+ * Finally, there is a filter named 'editor_max_image_size', that will be called
* on the calculated array for width and height, respectively. The second
* parameter will be the value that was in the $size parameter. The returned
* type for the hook is an array with the width as the first element and the
} elseif ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ) ) ) {
$max_width = intval( $_wp_additional_image_sizes[$size]['width'] );
$max_height = intval( $_wp_additional_image_sizes[$size]['height'] );
- if ( intval($content_width) > 0 )
+ if ( intval($content_width) > 0 && is_admin() ) // Only in admin. Assume that theme authors know what they're doing.
$max_width = min( intval($content_width), $max_width );
}
// $size == 'full' has no constraint
* resize services.
*
* @param int $id Attachment ID for image.
- * @param string $size Optional, default is 'medium'. Size of image, can be 'thumbnail'.
+ * @param array|string $size Optional, default is 'medium'. Size of image, either array or string.
* @return bool|array False on failure, array on success.
*/
function image_downsize($id, $size = 'medium') {
$meta = wp_get_attachment_metadata($id);
$width = $height = 0;
$is_intermediate = false;
+ $img_url_basename = wp_basename($img_url);
// plugins can use this to provide resize services
if ( $out = apply_filters('image_downsize', false, $id, $size) )
// try for a new style intermediate size
if ( $intermediate = image_get_intermediate_size($id, $size) ) {
- $img_url = str_replace(basename($img_url), $intermediate['file'], $img_url);
+ $img_url = str_replace($img_url_basename, $intermediate['file'], $img_url);
$width = $intermediate['width'];
$height = $intermediate['height'];
$is_intermediate = true;
elseif ( $size == 'thumbnail' ) {
// fall back to the old thumbnail
if ( ($thumb_file = wp_get_attachment_thumb_file($id)) && $info = getimagesize($thumb_file) ) {
- $img_url = str_replace(basename($img_url), basename($thumb_file), $img_url);
+ $img_url = str_replace($img_url_basename, wp_basename($thumb_file), $img_url);
$width = $info[0];
$height = $info[1];
$is_intermediate = true;
/**
* Registers a new image size
+ *
+ * @since 2.9.0
*/
-function add_image_size( $name, $width = 0, $height = 0, $crop = FALSE ) {
+function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
global $_wp_additional_image_sizes;
- $_wp_additional_image_sizes[$name] = array( 'width' => absint( $width ), 'height' => absint( $height ), 'crop' => !!$crop );
+ $_wp_additional_image_sizes[$name] = array( 'width' => absint( $width ), 'height' => absint( $height ), 'crop' => (bool) $crop );
}
/**
* Registers an image size for the post thumbnail
+ *
+ * @since 2.9.0
*/
-function set_post_thumbnail_size( $width = 0, $height = 0, $crop = FALSE ) {
+function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
add_image_size( 'post-thumbnail', $width, $height, $crop );
}
}
/**
- * Calculates the new dimentions for a downsampled image.
+ * Load an image from a string, if PHP supports it.
+ *
+ * @since 2.1.0
+ *
+ * @param string $file Filename of the image to load.
+ * @return resource The resulting image resource on success, Error string on failure.
+ */
+function wp_load_image( $file ) {
+ if ( is_numeric( $file ) )
+ $file = get_attached_file( $file );
+
+ if ( ! file_exists( $file ) )
+ return sprintf(__('File “%s” doesn’t exist?'), $file);
+
+ if ( ! function_exists('imagecreatefromstring') )
+ return __('The GD image library is not installed.');
+
+ // Set artificially high because GD uses uncompressed images in memory
+ @ini_set( 'memory_limit', apply_filters( 'image_memory_limit', WP_MAX_MEMORY_LIMIT ) );
+ $image = imagecreatefromstring( file_get_contents( $file ) );
+
+ if ( !is_resource( $image ) )
+ return sprintf(__('File “%s” is not an image.'), $file);
+
+ return $image;
+}
+
+/**
+ * Calculates the new dimensions for a downsampled image.
*
- * Same as {@link wp_shrink_dimensions()}, except the max parameters are
- * optional. If either width or height are empty, no constraint is applied on
+ * If either width or height are empty, no constraint is applied on
* that dimension.
*
* @since 2.5.0
return array( $current_width, $current_height );
$width_ratio = $height_ratio = 1.0;
+ $did_width = $did_height = false;
- if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width )
+ if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {
$width_ratio = $max_width / $current_width;
+ $did_width = true;
+ }
- if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height )
+ if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {
$height_ratio = $max_height / $current_height;
+ $did_height = true;
+ }
- // the smaller ratio is the one we need to fit it to the constraining box
- $ratio = min( $width_ratio, $height_ratio );
-
- return array( intval($current_width * $ratio), intval($current_height * $ratio) );
+ // Calculate the larger/smaller ratios
+ $smaller_ratio = min( $width_ratio, $height_ratio );
+ $larger_ratio = max( $width_ratio, $height_ratio );
+
+ if ( intval( $current_width * $larger_ratio ) > $max_width || intval( $current_height * $larger_ratio ) > $max_height )
+ // The larger ratio is too big. It would result in an overflow.
+ $ratio = $smaller_ratio;
+ else
+ // The larger ratio fits, and is likely to be a more "snug" fit.
+ $ratio = $larger_ratio;
+
+ $w = intval( $current_width * $ratio );
+ $h = intval( $current_height * $ratio );
+
+ // Sometimes, due to rounding, we'll end up with a result like this: 465x700 in a 177x177 box is 117x176... a pixel short
+ // We also have issues with recursive calls resulting in an ever-changing result. Constraining to the result of a constraint should yield the original result.
+ // Thus we look for dimensions that are one pixel shy of the max value and bump them up
+ if ( $did_width && $w == $max_width - 1 )
+ $w = $max_width; // Round it up
+ if ( $did_height && $h == $max_height - 1 )
+ $h = $max_height; // Round it up
+
+ return array( $w, $h );
}
/**
* @param int $dest_w New width.
* @param int $dest_h New height.
* @param bool $crop Optional, default is false. Whether to crop image or resize.
- * @return bool|array False, on failure. Returned array matches parameters for imagecopyresampled() PHP function.
+ * @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function.
*/
function image_resize_dimensions($orig_w, $orig_h, $dest_w, $dest_h, $crop = false) {
* @param int $max_w Maximum width to resize to.
* @param int $max_h Maximum height to resize to.
* @param bool $crop Optional. Whether to crop image or resize.
- * @param string $suffix Optional. File Suffix.
+ * @param string $suffix Optional. File suffix.
* @param string $dest_path Optional. New image file path.
* @param int $jpeg_quality Optional, default is 90. Image quality percentage.
- * @return mixed WP_Error on failure. String with new destination path. Array of dimensions from {@link image_resize_dimensions()}
+ * @return mixed WP_Error on failure. String with new destination path.
*/
function image_resize( $file, $max_w, $max_h, $crop = false, $suffix = null, $dest_path = null, $jpeg_quality = 90 ) {
$image = wp_load_image( $file );
if ( !is_resource( $image ) )
- return new WP_Error('error_loading_image', $image);
+ return new WP_Error( 'error_loading_image', $image, $file );
$size = @getimagesize( $file );
if ( !$size )
$dims = image_resize_dimensions($orig_w, $orig_h, $max_w, $max_h, $crop);
if ( !$dims )
- return $dims;
+ return new WP_Error( 'error_getting_dimensions', __('Could not calculate resized image dimensions') );
list($dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) = $dims;
$newimage = wp_imagecreatetruecolor( $dst_w, $dst_h );
imagecopyresampled( $newimage, $image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
// convert from full colors to index colors, like original PNG.
- if ( IMAGETYPE_PNG == $orig_type && !imageistruecolor( $image ) )
+ if ( IMAGETYPE_PNG == $orig_type && function_exists('imageistruecolor') && !imageistruecolor( $image ) )
imagetruecolortopalette( $newimage, false, imagecolorstotal( $image ) );
// we don't need the original in memory anymore
$info = pathinfo($file);
$dir = $info['dirname'];
$ext = $info['extension'];
- $name = basename($file, ".{$ext}");
+ $name = wp_basename($file, ".$ext");
+
if ( !is_null($dest_path) and $_dest_path = realpath($dest_path) )
$dir = $_dest_path;
$destfilename = "{$dir}/{$name}-{$suffix}.{$ext}";
if ( !is_wp_error($resized_file) && $resized_file && $info = getimagesize($resized_file) ) {
$resized_file = apply_filters('image_make_intermediate_size', $resized_file);
return array(
- 'file' => basename( $resized_file ),
+ 'file' => wp_basename( $resized_file ),
'width' => $info[0],
'height' => $info[1],
);
*
* The url path will be given, when the $size parameter is a string.
*
+ * If you are passing an array for the $size, you should consider using
+ * add_image_size() so that a cropped version is generated. It's much more
+ * efficient than having to find the closest-sized image and then having the
+ * browser scale down the image.
+ *
* @since 2.5.0
+ * @see add_image_size()
*
* @param int $post_id Attachment ID for image.
* @param array|string $size Optional, default is 'thumbnail'. Size of image, either array or string.
foreach ( $areas as $_size ) {
$data = $imagedata['sizes'][$_size];
if ( $data['width'] >= $size[0] || $data['height'] >= $size[1] ) {
+ // Skip images with unexpectedly divergent aspect ratios (crops)
+ // First, we calculate what size the original image would be if constrained to a box the size of the current image in the loop
+ $maybe_cropped = image_resize_dimensions($imagedata['width'], $imagedata['height'], $data['width'], $data['height'], false );
+ // If the size doesn't match within one pixel, then it is of a different aspect ratio, so we skip it, unless it's the thumbnail size
+ if ( 'thumbnail' != $_size && ( !$maybe_cropped || ( $maybe_cropped[4] != $data['width'] && $maybe_cropped[4] + 1 != $data['width'] ) || ( $maybe_cropped[5] != $data['height'] && $maybe_cropped[5] + 1 != $data['height'] ) ) )
+ continue;
+ // If we're still here, then we're going to use this size
$file = $data['file'];
list($width, $height) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );
return compact( 'file', 'width', 'height' );
return $data;
}
+/**
+ * Get the available image sizes
+ * @since 3.0.0
+ * @return array Returns a filtered array of image size strings
+ */
+function get_intermediate_image_sizes() {
+ global $_wp_additional_image_sizes;
+ $image_sizes = array('thumbnail', 'medium', 'large'); // Standard sizes
+ if ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) )
+ $image_sizes = array_merge( $image_sizes, array_keys( $_wp_additional_image_sizes ) );
+
+ return apply_filters( 'intermediate_image_sizes', $image_sizes );
+}
+
/**
* Retrieve an image to represent an attachment.
*
if ( $icon && $src = wp_mime_type_icon($attachment_id) ) {
$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal' );
- $src_file = $icon_dir . '/' . basename($src);
+ $src_file = $icon_dir . '/' . wp_basename($src);
@list($width, $height) = getimagesize($src_file);
}
if ( $src && $width && $height )
/**
* Get an HTML img element representing an image attachment
*
+ * While $size will accept an array, it is better to register a size with
+ * add_image_size() so that a cropped version is generated. It's much more
+ * efficient than having to find the closest-sized image and then having the
+ * browser scale down the image.
+ *
+ * @see add_image_size()
* @uses apply_filters() Calls 'wp_get_attachment_image_attributes' hook on attributes array
* @uses wp_get_attachment_image_src() Gets attachment file URL and dimensions
* @since 2.5.0
$default_attr = array(
'src' => $src,
'class' => "attachment-$size",
- 'alt' => trim(strip_tags( $attachment->post_excerpt )),
+ 'alt' => trim(strip_tags( get_post_meta($attachment_id, '_wp_attachment_image_alt', true) )), // Use Alt field first
'title' => trim(strip_tags( $attachment->post_title )),
);
+ if ( empty($default_attr['alt']) )
+ $default_attr['alt'] = trim(strip_tags( $attachment->post_excerpt )); // If not, Use the Caption
+ if ( empty($default_attr['alt']) )
+ $default_attr['alt'] = trim(strip_tags( $attachment->post_title )); // Finally, use the title
+
$attr = wp_parse_args($attr, $default_attr);
$attr = apply_filters( 'wp_get_attachment_image_attributes', $attr, $attachment );
$attr = array_map( 'esc_attr', $attr );
}
/**
- * Adds a 'wp-post-image' class to post thumbnail thumbnails
+ * Adds a 'wp-post-image' class to post thumbnails
* Uses the begin_fetch_post_thumbnail_html and end_fetch_post_thumbnail_html action hooks to
- * dynamically add/remove itself so as to only filter post thumbnail thumbnails
+ * dynamically add/remove itself so as to only filter post thumbnails
*
- * @author Mark Jaquith
* @since 2.9.0
* @param array $attr Attributes including src, class, alt, title
* @return array
/**
* Adds _wp_post_thumbnail_class_filter to the wp_get_attachment_image_attributes filter
*
- * @author Mark Jaquith
* @since 2.9.0
*/
function _wp_post_thumbnail_class_filter_add( $attr ) {
/**
* Removes _wp_post_thumbnail_class_filter from the wp_get_attachment_image_attributes filter
*
- * @author Mark Jaquith
* @since 2.9.0
*/
function _wp_post_thumbnail_class_filter_remove( $attr ) {
*
* @since 2.5.0
*
- * @param array $attr Attributes attributed to the shortcode.
+ * @param array $attr Attributes of the shortcode.
* @return string HTML content to display gallery.
*/
function gallery_shortcode($attr) {
- global $post, $wp_locale;
+ global $post;
static $instance = 0;
$instance++;
$captiontag = tag_escape($captiontag);
$columns = intval($columns);
$itemwidth = $columns > 0 ? floor(100/$columns) : 100;
- $float = $wp_locale->text_direction == 'rtl' ? 'right' : 'left';
-
+ $float = is_rtl() ? 'right' : 'left';
+
$selector = "gallery-{$instance}";
- $output = apply_filters('gallery_style', "
+ $gallery_style = $gallery_div = '';
+ if ( apply_filters( 'use_default_gallery_style', true ) )
+ $gallery_style = "
<style type='text/css'>
#{$selector} {
margin: auto;
float: {$float};
margin-top: 10px;
text-align: center;
- width: {$itemwidth}%; }
+ width: {$itemwidth}%;
+ }
#{$selector} img {
border: 2px solid #cfcfcf;
}
margin-left: 0;
}
</style>
- <!-- see gallery_shortcode() in wp-includes/media.php -->
- <div id='$selector' class='gallery galleryid-{$id}'>");
+ <!-- see gallery_shortcode() in wp-includes/media.php -->";
+ $size_class = sanitize_html_class( $size );
+ $gallery_div = "<div id='$selector' class='gallery galleryid-{$id} gallery-columns-{$columns} gallery-size-{$size_class}'>";
+ $output = apply_filters( 'gallery_style', $gallery_style . "\n\t\t" . $gallery_div );
$i = 0;
foreach ( $attachments as $id => $attachment ) {
</{$icontag}>";
if ( $captiontag && trim($attachment->post_excerpt) ) {
$output .= "
- <{$captiontag} class='gallery-caption'>
+ <{$captiontag} class='wp-caption-text gallery-caption'>
" . wptexturize($attachment->post_excerpt) . "
</{$captiontag}>";
}
*
* @since 2.5.0
*
- * @param bool $prev Optional. Default is true to display previous link, true for next.
+ * @param bool $prev Optional. Default is true to display previous link, false for next.
*/
function adjacent_image_link($prev = true, $size = 'thumbnail', $text = false) {
global $post;
*
* @since 2.9.0
*
- * @param $mime_type string
+ * @param string $mime_type
* @return bool
*/
function gd_edit_image_support($mime_type) {
*
* @since 2.9.0
*
- * @param $width
- * @param $height
+ * @param int $width Image width
+ * @param int $height Image height
* @return image resource
*/
function wp_imagecreatetruecolor($width, $height) {
var $linkifunknown = true;
/**
- * PHP4 constructor
- */
- function WP_Embed() {
- return $this->__construct();
- }
-
- /**
- * PHP5 constructor
+ * Constructor
*/
function __construct() {
// Hack to get the [embed] shortcode to run before wpautop()
add_filter( 'the_content', array(&$this, 'run_shortcode'), 8 );
+ // Shortcode placeholder for strip_shortcodes()
+ add_shortcode( 'embed', '__return_false' );
+
// Attempts to embed all URLs in a post
if ( get_option('embed_autourls') )
add_filter( 'the_content', array(&$this, 'autoembed'), 8 );
function run_shortcode( $content ) {
global $shortcode_tags;
- // Backup current registered shortcodes and clear them all out
+ // Back up current registered shortcodes and clear them all out
$orig_shortcode_tags = $shortcode_tags;
remove_all_shortcodes();
}
/**
- * If a post/page was saved, then output Javascript to make
+ * If a post/page was saved, then output JavaScript to make
* an AJAX request that will call WP_Embed::cache_oembed().
*/
function maybe_run_ajax_cache() {
* @uses update_post_meta()
*
* @param array $attr Shortcode attributes.
- * @param string $url The URL attempting to be embeded.
+ * @param string $url The URL attempting to be embedded.
* @return string The embed HTML on success, otherwise the original URL.
*/
function shortcode( $attr, $url = '' ) {
$rawattr = $attr;
$attr = wp_parse_args( $attr, wp_embed_defaults() );
+ // kses converts & into & and we need to undo this
+ // See http://core.trac.wordpress.org/ticket/11311
+ $url = str_replace( '&', '&', $url );
+
// Look for known internal handlers
ksort( $this->handlers );
foreach ( $this->handlers as $priority => $handlers ) {
return $this->maybe_make_link( $url );
if ( !empty($cache) )
- return apply_filters( 'embed_oembed_html', $cache, $url, $attr );
+ return apply_filters( 'embed_oembed_html', $cache, $url, $attr, $post_ID );
}
// Use oEmbed to get the HTML
- $attr['discover'] = ( apply_filters('embed_oembed_discover', false) && author_can( $post_ID, 'unfiltered_html' ) ) ? true : false;
+ $attr['discover'] = ( apply_filters('embed_oembed_discover', false) && author_can( $post_ID, 'unfiltered_html' ) );
$html = wp_oembed_get( $url, $attr );
// Cache the result
// If there was a result, return it
if ( $html )
- return apply_filters( 'embed_oembed_html', $html, $url, $attr );
+ return apply_filters( 'embed_oembed_html', $html, $url, $attr, $post_ID );
}
// Still unknown
return apply_filters( 'embed_maybe_make_link', $output, $url );
}
}
-$wp_embed = new WP_Embed();
+$GLOBALS['wp_embed'] = new WP_Embed();
/**
* Register an embed handler. This function should probably only be used for sites that do not support oEmbed.
$width = get_option('embed_size_w');
- if ( !$width && !empty($theme_width) )
+ if ( empty($width) && !empty($theme_width) )
$width = $theme_width;
- if ( !$width )
+ if ( empty($width) )
$width = 500;
+ $height = get_option('embed_size_h');
+
+ if ( empty($height) )
+ $height = 700;
+
return apply_filters( 'embed_defaults', array(
- 'width' => $width,
- 'height' => 700,
+ 'width' => $width,
+ 'height' => $height,
) );
}
* @uses _wp_oembed_get_object()
* @uses WP_oEmbed::get_html()
*
- * @param string $url The URL that should be embeded.
- * @param array $args Addtional arguments and parameters.
+ * @param string $url The URL that should be embedded.
+ * @param array $args Additional arguments and parameters.
* @return string The original URL on failure or the embed HTML on success.
*/
function wp_oembed_get( $url, $args = '' ) {
- require_once( 'class-oembed.php' );
+ require_once( ABSPATH . WPINC . '/class-oembed.php' );
$oembed = _wp_oembed_get_object();
return $oembed->get_html( $url, $args );
}
*
* @param string $format The format of URL that this provider can handle. You can use asterisks as wildcards.
* @param string $provider The URL to the oEmbed provider.
- * @param boolean $regex Whether the $format parameter is in a regex format or not.
+ * @param boolean $regex Whether the $format parameter is in a regex format.
*/
function wp_oembed_add_provider( $format, $provider, $regex = false ) {
- require_once( 'class-oembed.php' );
+ require_once( ABSPATH . WPINC . '/class-oembed.php' );
$oembed = _wp_oembed_get_object();
$oembed->providers[$format] = array( $provider, $regex );
}
+
+/**
+ * Determines if default embed handlers should be loaded.
+ *
+ * Checks to make sure that the embeds library hasn't already been loaded. If
+ * it hasn't, then it will load the embeds library.
+ *
+ * @since 2.9.0
+ */
+function wp_maybe_load_embeds() {
+ if ( ! apply_filters( 'load_default_embeds', true ) )
+ return;
+ wp_embed_register_handler( 'googlevideo', '#http://video\.google\.([A-Za-z.]{2,5})/videoplay\?docid=([\d-]+)(.*?)#i', 'wp_embed_handler_googlevideo' );
+}
+
+/**
+ * The Google Video embed handler callback. Google Video does not support oEmbed.
+ *
+ * @see WP_Embed::register_handler()
+ * @see WP_Embed::shortcode()
+ *
+ * @param array $matches The regex matches from the provided regex when calling {@link wp_embed_register_handler()}.
+ * @param array $attr Embed attributes.
+ * @param string $url The original URL that was matched by the regex.
+ * @param array $rawattr The original unmodified attributes.
+ * @return string The embed HTML.
+ */
+function wp_embed_handler_googlevideo( $matches, $attr, $url, $rawattr ) {
+ // If the user supplied a fixed width AND height, use it
+ if ( !empty($rawattr['width']) && !empty($rawattr['height']) ) {
+ $width = (int) $rawattr['width'];
+ $height = (int) $rawattr['height'];
+ } else {
+ list( $width, $height ) = wp_expand_dimensions( 425, 344, $attr['width'], $attr['height'] );
+ }
+
+ return apply_filters( 'embed_googlevideo', '<embed type="application/x-shockwave-flash" src="http://video.google.com/googleplayer.swf?docid=' . esc_attr($matches[2]) . '&hl=en&fs=true" style="width:' . esc_attr($width) . 'px;height:' . esc_attr($height) . 'px" allowFullScreen="true" allowScriptAccess="always" />', $matches, $attr, $url, $rawattr );
+}
+
+?>
\ No newline at end of file
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff