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c217397faa
Please note that this commit does not integrate media into the existing UI. If you would like to see the new UI, navigate to the post editor and run the following in your browser's Javascript console: new wp.media.controller.Workflow().render().modal.open(); The Javascript is broken up into two files, with the slugs media-models and media-views. * media-models: The models are UI agnostic, and can be used independent of the views. If you'd like to create custom UIs, this is the script for you. * media-views: This is the Media Experience. The views (and controllers) depend on the models (which are listed as a dependency and will automatically be included thanks to wp_enqueue_script). The views also require the media templates, media-view styles, and the plupload bridge settings. Perhaps we should create a function to include the whole shebang, but in the meantime... To include media-views in the admin, run the following PHP in or after 'admin_enqueue_scripts': wp_enqueue_script( 'media-views' ); wp_enqueue_style( 'media-views' ); wp_plupload_default_settings(); add_action( 'admin_footer', 'wp_print_media_templates' ); see #21390. git-svn-id: http://core.svn.wordpress.org/trunk@21683 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1655 lines
56 KiB
PHP
1655 lines
56 KiB
PHP
<?php
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/**
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* WordPress API for media display.
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*
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* @package WordPress
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*/
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/**
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* Scale down the default size of an image.
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*
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* This is so that the image is a better fit for the editor and theme.
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*
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* The $size parameter accepts either an array or a string. The supported string
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* values are 'thumb' or 'thumbnail' for the given thumbnail size or defaults at
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* 128 width and 96 height in pixels. Also supported for the string value is
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* 'medium' and 'full'. The 'full' isn't actually supported, but any value other
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* than the supported will result in the content_width size or 500 if that is
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* not set.
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*
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* Finally, there is a filter named 'editor_max_image_size', that will be called
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* on the calculated array for width and height, respectively. The second
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* parameter will be the value that was in the $size parameter. The returned
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* type for the hook is an array with the width as the first element and the
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* height as the second element.
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*
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* @since 2.5.0
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* @uses wp_constrain_dimensions() This function passes the widths and the heights.
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*
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* @param int $width Width of the image
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* @param int $height Height of the image
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* @param string|array $size Size of what the result image should be.
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* @return array Width and height of what the result image should resize to.
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*/
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function image_constrain_size_for_editor($width, $height, $size = 'medium') {
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global $content_width, $_wp_additional_image_sizes;
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if ( is_array($size) ) {
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$max_width = $size[0];
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$max_height = $size[1];
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}
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elseif ( $size == 'thumb' || $size == 'thumbnail' ) {
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$max_width = intval(get_option('thumbnail_size_w'));
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$max_height = intval(get_option('thumbnail_size_h'));
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// last chance thumbnail size defaults
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if ( !$max_width && !$max_height ) {
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$max_width = 128;
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$max_height = 96;
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}
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}
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elseif ( $size == 'medium' ) {
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$max_width = intval(get_option('medium_size_w'));
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$max_height = intval(get_option('medium_size_h'));
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// if no width is set, default to the theme content width if available
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}
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elseif ( $size == 'large' ) {
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// We're inserting a large size image into the editor. If it's a really
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// big image we'll scale it down to fit reasonably within the editor
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// itself, and within the theme's content width if it's known. The user
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// can resize it in the editor if they wish.
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$max_width = intval(get_option('large_size_w'));
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$max_height = intval(get_option('large_size_h'));
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if ( intval($content_width) > 0 )
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$max_width = min( intval($content_width), $max_width );
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} elseif ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) && in_array( $size, array_keys( $_wp_additional_image_sizes ) ) ) {
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$max_width = intval( $_wp_additional_image_sizes[$size]['width'] );
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$max_height = intval( $_wp_additional_image_sizes[$size]['height'] );
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if ( intval($content_width) > 0 && is_admin() ) // Only in admin. Assume that theme authors know what they're doing.
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$max_width = min( intval($content_width), $max_width );
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}
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// $size == 'full' has no constraint
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else {
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$max_width = $width;
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$max_height = $height;
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}
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list( $max_width, $max_height ) = apply_filters( 'editor_max_image_size', array( $max_width, $max_height ), $size );
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return wp_constrain_dimensions( $width, $height, $max_width, $max_height );
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}
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/**
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* Retrieve width and height attributes using given width and height values.
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*
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* Both attributes are required in the sense that both parameters must have a
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* value, but are optional in that if you set them to false or null, then they
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* will not be added to the returned string.
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*
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* You can set the value using a string, but it will only take numeric values.
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* If you wish to put 'px' after the numbers, then it will be stripped out of
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* the return.
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*
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* @since 2.5.0
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*
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* @param int|string $width Optional. Width attribute value.
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* @param int|string $height Optional. Height attribute value.
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* @return string HTML attributes for width and, or height.
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*/
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function image_hwstring($width, $height) {
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$out = '';
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if ($width)
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$out .= 'width="'.intval($width).'" ';
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if ($height)
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$out .= 'height="'.intval($height).'" ';
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return $out;
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}
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/**
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* Scale an image to fit a particular size (such as 'thumb' or 'medium').
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*
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* Array with image url, width, height, and whether is intermediate size, in
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* that order is returned on success is returned. $is_intermediate is true if
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* $url is a resized image, false if it is the original.
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*
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* The URL might be the original image, or it might be a resized version. This
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* function won't create a new resized copy, it will just return an already
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* resized one if it exists.
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*
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* A plugin may use the 'image_downsize' filter to hook into and offer image
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* resizing services for images. The hook must return an array with the same
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* elements that are returned in the function. The first element being the URL
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* to the new image that was resized.
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*
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* @since 2.5.0
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* @uses apply_filters() Calls 'image_downsize' on $id and $size to provide
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* resize services.
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*
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* @param int $id Attachment ID for image.
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* @param array|string $size Optional, default is 'medium'. Size of image, either array or string.
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* @return bool|array False on failure, array on success.
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*/
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function image_downsize($id, $size = 'medium') {
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if ( !wp_attachment_is_image($id) )
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return false;
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$img_url = wp_get_attachment_url($id);
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$meta = wp_get_attachment_metadata($id);
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$width = $height = 0;
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$is_intermediate = false;
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$img_url_basename = wp_basename($img_url);
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// plugins can use this to provide resize services
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if ( $out = apply_filters('image_downsize', false, $id, $size) )
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return $out;
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// try for a new style intermediate size
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if ( $intermediate = image_get_intermediate_size($id, $size) ) {
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$img_url = str_replace($img_url_basename, $intermediate['file'], $img_url);
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$width = $intermediate['width'];
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$height = $intermediate['height'];
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$is_intermediate = true;
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}
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elseif ( $size == 'thumbnail' ) {
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// fall back to the old thumbnail
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if ( ($thumb_file = wp_get_attachment_thumb_file($id)) && $info = getimagesize($thumb_file) ) {
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$img_url = str_replace($img_url_basename, wp_basename($thumb_file), $img_url);
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$width = $info[0];
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$height = $info[1];
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$is_intermediate = true;
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}
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}
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if ( !$width && !$height && isset($meta['width'], $meta['height']) ) {
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// any other type: use the real image
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$width = $meta['width'];
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$height = $meta['height'];
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}
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if ( $img_url) {
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// we have the actual image size, but might need to further constrain it if content_width is narrower
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list( $width, $height ) = image_constrain_size_for_editor( $width, $height, $size );
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return array( $img_url, $width, $height, $is_intermediate );
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}
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return false;
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}
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/**
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* Registers a new image size
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*
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* @since 2.9.0
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*/
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function add_image_size( $name, $width = 0, $height = 0, $crop = false ) {
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global $_wp_additional_image_sizes;
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$_wp_additional_image_sizes[$name] = array( 'width' => absint( $width ), 'height' => absint( $height ), 'crop' => (bool) $crop );
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}
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/**
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* Registers an image size for the post thumbnail
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*
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* @since 2.9.0
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*/
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function set_post_thumbnail_size( $width = 0, $height = 0, $crop = false ) {
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add_image_size( 'post-thumbnail', $width, $height, $crop );
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}
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/**
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* An <img src /> tag for an image attachment, scaling it down if requested.
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*
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* The filter 'get_image_tag_class' allows for changing the class name for the
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* image without having to use regular expressions on the HTML content. The
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* parameters are: what WordPress will use for the class, the Attachment ID,
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* image align value, and the size the image should be.
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*
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* The second filter 'get_image_tag' has the HTML content, which can then be
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* further manipulated by a plugin to change all attribute values and even HTML
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* content.
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*
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* @since 2.5.0
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*
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* @uses apply_filters() The 'get_image_tag_class' filter is the IMG element
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* class attribute.
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* @uses apply_filters() The 'get_image_tag' filter is the full IMG element with
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* all attributes.
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*
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* @param int $id Attachment ID.
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* @param string $alt Image Description for the alt attribute.
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* @param string $title Image Description for the title attribute.
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* @param string $align Part of the class name for aligning the image.
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* @param string $size Optional. Default is 'medium'.
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* @return string HTML IMG element for given image attachment
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*/
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function get_image_tag($id, $alt, $title, $align, $size='medium') {
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list( $img_src, $width, $height ) = image_downsize($id, $size);
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$hwstring = image_hwstring($width, $height);
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$class = 'align' . esc_attr($align) .' size-' . esc_attr($size) . ' wp-image-' . $id;
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$class = apply_filters('get_image_tag_class', $class, $id, $align, $size);
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$html = '<img src="' . esc_attr($img_src) . '" alt="' . esc_attr($alt) . '" title="' . esc_attr($title).'" '.$hwstring.'class="'.$class.'" />';
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$html = apply_filters( 'get_image_tag', $html, $id, $alt, $title, $align, $size );
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return $html;
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}
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/**
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* Load an image from a string, if PHP supports it.
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*
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* @since 2.1.0
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*
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* @param string $file Filename of the image to load.
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* @return resource The resulting image resource on success, Error string on failure.
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*/
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function wp_load_image( $file ) {
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if ( is_numeric( $file ) )
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$file = get_attached_file( $file );
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if ( ! file_exists( $file ) )
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return sprintf(__('File “%s” doesn’t exist?'), $file);
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if ( ! function_exists('imagecreatefromstring') )
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return __('The GD image library is not installed.');
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// Set artificially high because GD uses uncompressed images in memory
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@ini_set( 'memory_limit', apply_filters( 'image_memory_limit', WP_MAX_MEMORY_LIMIT ) );
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$image = imagecreatefromstring( file_get_contents( $file ) );
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if ( !is_resource( $image ) )
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return sprintf(__('File “%s” is not an image.'), $file);
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return $image;
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}
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/**
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* Calculates the new dimensions for a downsampled image.
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*
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* If either width or height are empty, no constraint is applied on
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* that dimension.
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*
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* @since 2.5.0
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*
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* @param int $current_width Current width of the image.
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* @param int $current_height Current height of the image.
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* @param int $max_width Optional. Maximum wanted width.
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* @param int $max_height Optional. Maximum wanted height.
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* @return array First item is the width, the second item is the height.
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*/
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function wp_constrain_dimensions( $current_width, $current_height, $max_width=0, $max_height=0 ) {
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if ( !$max_width and !$max_height )
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return array( $current_width, $current_height );
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$width_ratio = $height_ratio = 1.0;
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$did_width = $did_height = false;
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if ( $max_width > 0 && $current_width > 0 && $current_width > $max_width ) {
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$width_ratio = $max_width / $current_width;
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$did_width = true;
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}
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if ( $max_height > 0 && $current_height > 0 && $current_height > $max_height ) {
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$height_ratio = $max_height / $current_height;
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$did_height = true;
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}
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// Calculate the larger/smaller ratios
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$smaller_ratio = min( $width_ratio, $height_ratio );
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$larger_ratio = max( $width_ratio, $height_ratio );
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if ( intval( $current_width * $larger_ratio ) > $max_width || intval( $current_height * $larger_ratio ) > $max_height )
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// The larger ratio is too big. It would result in an overflow.
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$ratio = $smaller_ratio;
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else
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// The larger ratio fits, and is likely to be a more "snug" fit.
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$ratio = $larger_ratio;
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$w = intval( $current_width * $ratio );
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$h = intval( $current_height * $ratio );
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// Sometimes, due to rounding, we'll end up with a result like this: 465x700 in a 177x177 box is 117x176... a pixel short
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// 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.
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// Thus we look for dimensions that are one pixel shy of the max value and bump them up
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if ( $did_width && $w == $max_width - 1 )
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$w = $max_width; // Round it up
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if ( $did_height && $h == $max_height - 1 )
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$h = $max_height; // Round it up
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return array( $w, $h );
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}
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/**
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* Retrieve calculated resized dimensions for use in imagecopyresampled().
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*
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* Calculate dimensions and coordinates for a resized image that fits within a
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* specified width and height. If $crop is true, the largest matching central
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* portion of the image will be cropped out and resized to the required size.
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*
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* @since 2.5.0
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* @uses apply_filters() Calls 'image_resize_dimensions' on $orig_w, $orig_h, $dest_w, $dest_h and
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* $crop to provide custom resize dimensions.
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*
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* @param int $orig_w Original width.
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* @param int $orig_h Original height.
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* @param int $dest_w New width.
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* @param int $dest_h New height.
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* @param bool $crop Optional, default is false. Whether to crop image or resize.
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* @return bool|array False on failure. Returned array matches parameters for imagecopyresampled() PHP function.
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*/
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function image_resize_dimensions($orig_w, $orig_h, $dest_w, $dest_h, $crop = false) {
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if ($orig_w <= 0 || $orig_h <= 0)
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return false;
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// at least one of dest_w or dest_h must be specific
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if ($dest_w <= 0 && $dest_h <= 0)
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return false;
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// plugins can use this to provide custom resize dimensions
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$output = apply_filters( 'image_resize_dimensions', null, $orig_w, $orig_h, $dest_w, $dest_h, $crop );
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if ( null !== $output )
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return $output;
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if ( $crop ) {
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// crop the largest possible portion of the original image that we can size to $dest_w x $dest_h
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$aspect_ratio = $orig_w / $orig_h;
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$new_w = min($dest_w, $orig_w);
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$new_h = min($dest_h, $orig_h);
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if ( !$new_w ) {
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$new_w = intval($new_h * $aspect_ratio);
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}
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if ( !$new_h ) {
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$new_h = intval($new_w / $aspect_ratio);
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}
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$size_ratio = max($new_w / $orig_w, $new_h / $orig_h);
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$crop_w = round($new_w / $size_ratio);
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$crop_h = round($new_h / $size_ratio);
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$s_x = floor( ($orig_w - $crop_w) / 2 );
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$s_y = floor( ($orig_h - $crop_h) / 2 );
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} else {
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// don't crop, just resize using $dest_w x $dest_h as a maximum bounding box
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$crop_w = $orig_w;
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$crop_h = $orig_h;
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$s_x = 0;
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$s_y = 0;
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list( $new_w, $new_h ) = wp_constrain_dimensions( $orig_w, $orig_h, $dest_w, $dest_h );
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}
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// if the resulting image would be the same size or larger we don't want to resize it
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if ( $new_w >= $orig_w && $new_h >= $orig_h )
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return false;
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// the return array matches the parameters to imagecopyresampled()
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// int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h
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return array( 0, 0, (int) $s_x, (int) $s_y, (int) $new_w, (int) $new_h, (int) $crop_w, (int) $crop_h );
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}
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/**
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* Scale down an image to fit a particular size and save a new copy of the image.
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*
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* The PNG transparency will be preserved using the function, as well as the
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* image type. If the file going in is PNG, then the resized image is going to
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* be PNG. The only supported image types are PNG, GIF, and JPEG.
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*
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* Some functionality requires API to exist, so some PHP version may lose out
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* support. This is not the fault of WordPress (where functionality is
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* downgraded, not actual defects), but of your PHP version.
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*
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* @since 2.5.0
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*
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* @param string $file Image file path.
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* @param int $max_w Maximum width to resize to.
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* @param int $max_h Maximum height to resize to.
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* @param bool $crop Optional. Whether to crop image or resize.
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* @param string $suffix Optional. File suffix.
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* @param string $dest_path Optional. New image file path.
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* @param int $jpeg_quality Optional, default is 90. Image quality percentage.
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* @return mixed WP_Error on failure. String with new destination path.
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*/
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function image_resize( $file, $max_w, $max_h, $crop = false, $suffix = null, $dest_path = null, $jpeg_quality = 90 ) {
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$image = wp_load_image( $file );
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|
if ( !is_resource( $image ) )
|
|
return new WP_Error( 'error_loading_image', $image, $file );
|
|
|
|
$size = @getimagesize( $file );
|
|
if ( !$size )
|
|
return new WP_Error('invalid_image', __('Could not read image size'), $file);
|
|
list($orig_w, $orig_h, $orig_type) = $size;
|
|
|
|
$dims = image_resize_dimensions($orig_w, $orig_h, $max_w, $max_h, $crop);
|
|
if ( !$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 && function_exists('imageistruecolor') && !imageistruecolor( $image ) )
|
|
imagetruecolortopalette( $newimage, false, imagecolorstotal( $image ) );
|
|
|
|
// we don't need the original in memory anymore
|
|
imagedestroy( $image );
|
|
|
|
// $suffix will be appended to the destination filename, just before the extension
|
|
if ( !$suffix )
|
|
$suffix = "{$dst_w}x{$dst_h}";
|
|
|
|
$info = pathinfo($file);
|
|
$dir = $info['dirname'];
|
|
$ext = $info['extension'];
|
|
$name = wp_basename($file, ".$ext");
|
|
|
|
if ( !is_null($dest_path) and $_dest_path = realpath($dest_path) )
|
|
$dir = $_dest_path;
|
|
$destfilename = "{$dir}/{$name}-{$suffix}.{$ext}";
|
|
|
|
if ( IMAGETYPE_GIF == $orig_type ) {
|
|
if ( !imagegif( $newimage, $destfilename ) )
|
|
return new WP_Error('resize_path_invalid', __( 'Resize path invalid' ));
|
|
} elseif ( IMAGETYPE_PNG == $orig_type ) {
|
|
if ( !imagepng( $newimage, $destfilename ) )
|
|
return new WP_Error('resize_path_invalid', __( 'Resize path invalid' ));
|
|
} else {
|
|
// all other formats are converted to jpg
|
|
if ( 'jpg' != $ext && 'jpeg' != $ext )
|
|
$destfilename = "{$dir}/{$name}-{$suffix}.jpg";
|
|
if ( !imagejpeg( $newimage, $destfilename, apply_filters( 'jpeg_quality', $jpeg_quality, 'image_resize' ) ) )
|
|
return new WP_Error('resize_path_invalid', __( 'Resize path invalid' ));
|
|
}
|
|
|
|
imagedestroy( $newimage );
|
|
|
|
// Set correct file permissions
|
|
$stat = stat( dirname( $destfilename ));
|
|
$perms = $stat['mode'] & 0000666; //same permissions as parent folder, strip off the executable bits
|
|
@ chmod( $destfilename, $perms );
|
|
|
|
return $destfilename;
|
|
}
|
|
|
|
/**
|
|
* Resize an image to make a thumbnail or intermediate size.
|
|
*
|
|
* The returned array has the file size, the image width, and image height. The
|
|
* filter 'image_make_intermediate_size' can be used to hook in and change the
|
|
* values of the returned array. The only parameter is the resized file path.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $file File path.
|
|
* @param int $width Image width.
|
|
* @param int $height Image height.
|
|
* @param bool $crop Optional, default is false. Whether to crop image to specified height and width or resize.
|
|
* @return bool|array False, if no image was created. Metadata array on success.
|
|
*/
|
|
function image_make_intermediate_size($file, $width, $height, $crop=false) {
|
|
if ( $width || $height ) {
|
|
$resized_file = image_resize($file, $width, $height, $crop);
|
|
if ( !is_wp_error($resized_file) && $resized_file && $info = getimagesize($resized_file) ) {
|
|
$resized_file = apply_filters('image_make_intermediate_size', $resized_file);
|
|
return array(
|
|
'file' => wp_basename( $resized_file ),
|
|
'width' => $info[0],
|
|
'height' => $info[1],
|
|
);
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the image's intermediate size (resized) path, width, and height.
|
|
*
|
|
* The $size parameter can be an array with the width and height respectively.
|
|
* If the size matches the 'sizes' metadata array for width and height, then it
|
|
* will be used. If there is no direct match, then the nearest image size larger
|
|
* than the specified size will be used. If nothing is found, then the function
|
|
* will break out and return false.
|
|
*
|
|
* The metadata 'sizes' is used for compatible sizes that can be used for the
|
|
* parameter $size value.
|
|
*
|
|
* 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 $size Optional, default is 'thumbnail'. Size of image, either array or string.
|
|
* @return bool|array False on failure or array of file path, width, and height on success.
|
|
*/
|
|
function image_get_intermediate_size($post_id, $size='thumbnail') {
|
|
if ( !is_array( $imagedata = wp_get_attachment_metadata( $post_id ) ) )
|
|
return false;
|
|
|
|
// get the best one for a specified set of dimensions
|
|
if ( is_array($size) && !empty($imagedata['sizes']) ) {
|
|
foreach ( $imagedata['sizes'] as $_size => $data ) {
|
|
// already cropped to width or height; so use this size
|
|
if ( ( $data['width'] == $size[0] && $data['height'] <= $size[1] ) || ( $data['height'] == $size[1] && $data['width'] <= $size[0] ) ) {
|
|
$file = $data['file'];
|
|
list($width, $height) = image_constrain_size_for_editor( $data['width'], $data['height'], $size );
|
|
return compact( 'file', 'width', 'height' );
|
|
}
|
|
// add to lookup table: area => size
|
|
$areas[$data['width'] * $data['height']] = $_size;
|
|
}
|
|
if ( !$size || !empty($areas) ) {
|
|
// find for the smallest image not smaller than the desired size
|
|
ksort($areas);
|
|
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'], $size );
|
|
return compact( 'file', 'width', 'height' );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( is_array($size) || empty($size) || empty($imagedata['sizes'][$size]) )
|
|
return false;
|
|
|
|
$data = $imagedata['sizes'][$size];
|
|
// include the full filesystem path of the intermediate file
|
|
if ( empty($data['path']) && !empty($data['file']) ) {
|
|
$file_url = wp_get_attachment_url($post_id);
|
|
$data['path'] = path_join( dirname($imagedata['file']), $data['file'] );
|
|
$data['url'] = path_join( dirname($file_url), $data['file'] );
|
|
}
|
|
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.
|
|
*
|
|
* A mime icon for files, thumbnail or intermediate size for images.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string $size Optional, default is 'thumbnail'.
|
|
* @param bool $icon Optional, default is false. Whether it is an icon.
|
|
* @return bool|array Returns an array (url, width, height), or false, if no image is available.
|
|
*/
|
|
function wp_get_attachment_image_src($attachment_id, $size='thumbnail', $icon = false) {
|
|
|
|
// get a thumbnail or intermediate image if there is one
|
|
if ( $image = image_downsize($attachment_id, $size) )
|
|
return $image;
|
|
|
|
$src = false;
|
|
|
|
if ( $icon && $src = wp_mime_type_icon($attachment_id) ) {
|
|
$icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal' );
|
|
$src_file = $icon_dir . '/' . wp_basename($src);
|
|
@list($width, $height) = getimagesize($src_file);
|
|
}
|
|
if ( $src && $width && $height )
|
|
return array( $src, $width, $height );
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @param int $attachment_id Image attachment ID.
|
|
* @param string $size Optional, default is 'thumbnail'.
|
|
* @param bool $icon Optional, default is false. Whether it is an icon.
|
|
* @return string HTML img element or empty string on failure.
|
|
*/
|
|
function wp_get_attachment_image($attachment_id, $size = 'thumbnail', $icon = false, $attr = '') {
|
|
|
|
$html = '';
|
|
$image = wp_get_attachment_image_src($attachment_id, $size, $icon);
|
|
if ( $image ) {
|
|
list($src, $width, $height) = $image;
|
|
$hwstring = image_hwstring($width, $height);
|
|
if ( is_array($size) )
|
|
$size = join('x', $size);
|
|
$attachment = get_post($attachment_id);
|
|
$default_attr = array(
|
|
'src' => $src,
|
|
'class' => "attachment-$size",
|
|
'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 );
|
|
$html = rtrim("<img $hwstring");
|
|
foreach ( $attr as $name => $value ) {
|
|
$html .= " $name=" . '"' . $value . '"';
|
|
}
|
|
$html .= ' />';
|
|
}
|
|
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* 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 thumbnails
|
|
*
|
|
* @since 2.9.0
|
|
* @param array $attr Attributes including src, class, alt, title
|
|
* @return array
|
|
*/
|
|
function _wp_post_thumbnail_class_filter( $attr ) {
|
|
$attr['class'] .= ' wp-post-image';
|
|
return $attr;
|
|
}
|
|
|
|
/**
|
|
* Adds _wp_post_thumbnail_class_filter to the wp_get_attachment_image_attributes filter
|
|
*
|
|
* @since 2.9.0
|
|
*/
|
|
function _wp_post_thumbnail_class_filter_add( $attr ) {
|
|
add_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
|
|
}
|
|
|
|
/**
|
|
* Removes _wp_post_thumbnail_class_filter from the wp_get_attachment_image_attributes filter
|
|
*
|
|
* @since 2.9.0
|
|
*/
|
|
function _wp_post_thumbnail_class_filter_remove( $attr ) {
|
|
remove_filter( 'wp_get_attachment_image_attributes', '_wp_post_thumbnail_class_filter' );
|
|
}
|
|
|
|
add_shortcode('wp_caption', 'img_caption_shortcode');
|
|
add_shortcode('caption', 'img_caption_shortcode');
|
|
|
|
/**
|
|
* The Caption shortcode.
|
|
*
|
|
* Allows a plugin to replace the content that would otherwise be returned. The
|
|
* filter is 'img_caption_shortcode' and passes an empty string, the attr
|
|
* parameter and the content parameter values.
|
|
*
|
|
* The supported attributes for the shortcode are 'id', 'align', 'width', and
|
|
* 'caption'.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param array $attr Attributes attributed to the shortcode.
|
|
* @param string $content Optional. Shortcode content.
|
|
* @return string
|
|
*/
|
|
function img_caption_shortcode($attr, $content = null) {
|
|
// New-style shortcode with the caption inside the shortcode with the link and image tags.
|
|
if ( ! isset( $attr['caption'] ) ) {
|
|
if ( preg_match( '#((?:<a [^>]+>\s*)?<img [^>]+>(?:\s*</a>)?)(.*)#is', $content, $matches ) ) {
|
|
$content = $matches[1];
|
|
$attr['caption'] = trim( $matches[2] );
|
|
}
|
|
}
|
|
|
|
// Allow plugins/themes to override the default caption template.
|
|
$output = apply_filters('img_caption_shortcode', '', $attr, $content);
|
|
if ( $output != '' )
|
|
return $output;
|
|
|
|
extract(shortcode_atts(array(
|
|
'id' => '',
|
|
'align' => 'alignnone',
|
|
'width' => '',
|
|
'caption' => ''
|
|
), $attr));
|
|
|
|
if ( 1 > (int) $width || empty($caption) )
|
|
return $content;
|
|
|
|
if ( $id ) $id = 'id="' . esc_attr($id) . '" ';
|
|
|
|
return '<div ' . $id . 'class="wp-caption ' . esc_attr($align) . '" style="width: ' . (10 + (int) $width) . 'px">'
|
|
. do_shortcode( $content ) . '<p class="wp-caption-text">' . $caption . '</p></div>';
|
|
}
|
|
|
|
add_shortcode('gallery', 'gallery_shortcode');
|
|
|
|
/**
|
|
* The Gallery shortcode.
|
|
*
|
|
* This implements the functionality of the Gallery Shortcode for displaying
|
|
* WordPress images on a post.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param array $attr Attributes of the shortcode.
|
|
* @return string HTML content to display gallery.
|
|
*/
|
|
function gallery_shortcode($attr) {
|
|
global $post;
|
|
|
|
static $instance = 0;
|
|
$instance++;
|
|
|
|
// Allow plugins/themes to override the default gallery template.
|
|
$output = apply_filters('post_gallery', '', $attr);
|
|
if ( $output != '' )
|
|
return $output;
|
|
|
|
// We're trusting author input, so let's at least make sure it looks like a valid orderby statement
|
|
if ( isset( $attr['orderby'] ) ) {
|
|
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
|
|
if ( !$attr['orderby'] )
|
|
unset( $attr['orderby'] );
|
|
}
|
|
|
|
extract(shortcode_atts(array(
|
|
'order' => 'ASC',
|
|
'orderby' => 'menu_order ID',
|
|
'id' => $post->ID,
|
|
'itemtag' => 'dl',
|
|
'icontag' => 'dt',
|
|
'captiontag' => 'dd',
|
|
'columns' => 3,
|
|
'size' => 'thumbnail',
|
|
'include' => '',
|
|
'exclude' => ''
|
|
), $attr));
|
|
|
|
$id = intval($id);
|
|
if ( 'RAND' == $order )
|
|
$orderby = 'none';
|
|
|
|
if ( !empty($include) ) {
|
|
$include = preg_replace( '/[^0-9,]+/', '', $include );
|
|
$_attachments = get_posts( array('include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
|
|
|
|
$attachments = array();
|
|
foreach ( $_attachments as $key => $val ) {
|
|
$attachments[$val->ID] = $_attachments[$key];
|
|
}
|
|
} elseif ( !empty($exclude) ) {
|
|
$exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
|
|
$attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
|
|
} else {
|
|
$attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
|
|
}
|
|
|
|
if ( empty($attachments) )
|
|
return '';
|
|
|
|
if ( is_feed() ) {
|
|
$output = "\n";
|
|
foreach ( $attachments as $att_id => $attachment )
|
|
$output .= wp_get_attachment_link($att_id, $size, true) . "\n";
|
|
return $output;
|
|
}
|
|
|
|
$itemtag = tag_escape($itemtag);
|
|
$captiontag = tag_escape($captiontag);
|
|
$columns = intval($columns);
|
|
$itemwidth = $columns > 0 ? floor(100/$columns) : 100;
|
|
$float = is_rtl() ? 'right' : 'left';
|
|
|
|
$selector = "gallery-{$instance}";
|
|
|
|
$gallery_style = $gallery_div = '';
|
|
if ( apply_filters( 'use_default_gallery_style', true ) )
|
|
$gallery_style = "
|
|
<style type='text/css'>
|
|
#{$selector} {
|
|
margin: auto;
|
|
}
|
|
#{$selector} .gallery-item {
|
|
float: {$float};
|
|
margin-top: 10px;
|
|
text-align: center;
|
|
width: {$itemwidth}%;
|
|
}
|
|
#{$selector} img {
|
|
border: 2px solid #cfcfcf;
|
|
}
|
|
#{$selector} .gallery-caption {
|
|
margin-left: 0;
|
|
}
|
|
</style>
|
|
<!-- 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 ) {
|
|
$link = isset($attr['link']) && 'file' == $attr['link'] ? wp_get_attachment_link($id, $size, false, false) : wp_get_attachment_link($id, $size, true, false);
|
|
|
|
$output .= "<{$itemtag} class='gallery-item'>";
|
|
$output .= "
|
|
<{$icontag} class='gallery-icon'>
|
|
$link
|
|
</{$icontag}>";
|
|
if ( $captiontag && trim($attachment->post_excerpt) ) {
|
|
$output .= "
|
|
<{$captiontag} class='wp-caption-text gallery-caption'>
|
|
" . wptexturize($attachment->post_excerpt) . "
|
|
</{$captiontag}>";
|
|
}
|
|
$output .= "</{$itemtag}>";
|
|
if ( $columns > 0 && ++$i % $columns == 0 )
|
|
$output .= '<br style="clear: both" />';
|
|
}
|
|
|
|
$output .= "
|
|
<br style='clear: both;' />
|
|
</div>\n";
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Display previous image link that has the same post parent.
|
|
*
|
|
* @since 2.5.0
|
|
* @param string $size Optional, default is 'thumbnail'. Size of image, either array or string. 0 or 'none' will default to post_title or $text;
|
|
* @param string $text Optional, default is false. If included, link will reflect $text variable.
|
|
* @return string HTML content.
|
|
*/
|
|
function previous_image_link($size = 'thumbnail', $text = false) {
|
|
adjacent_image_link(true, $size, $text);
|
|
}
|
|
|
|
/**
|
|
* Display next image link that has the same post parent.
|
|
*
|
|
* @since 2.5.0
|
|
* @param string $size Optional, default is 'thumbnail'. Size of image, either array or string. 0 or 'none' will default to post_title or $text;
|
|
* @param string $text Optional, default is false. If included, link will reflect $text variable.
|
|
* @return string HTML content.
|
|
*/
|
|
function next_image_link($size = 'thumbnail', $text = false) {
|
|
adjacent_image_link(false, $size, $text);
|
|
}
|
|
|
|
/**
|
|
* Display next or previous image link that has the same post parent.
|
|
*
|
|
* Retrieves the current attachment object from the $post global.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @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;
|
|
$post = get_post($post);
|
|
$attachments = array_values(get_children( array('post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID') ));
|
|
|
|
foreach ( $attachments as $k => $attachment )
|
|
if ( $attachment->ID == $post->ID )
|
|
break;
|
|
|
|
$k = $prev ? $k - 1 : $k + 1;
|
|
|
|
if ( isset($attachments[$k]) )
|
|
echo wp_get_attachment_link($attachments[$k]->ID, $size, true, false, $text);
|
|
}
|
|
|
|
/**
|
|
* Retrieve taxonomies attached to the attachment.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param int|array|object $attachment Attachment ID, Attachment data array, or Attachment data object.
|
|
* @return array Empty array on failure. List of taxonomies on success.
|
|
*/
|
|
function get_attachment_taxonomies($attachment) {
|
|
if ( is_int( $attachment ) )
|
|
$attachment = get_post($attachment);
|
|
else if ( is_array($attachment) )
|
|
$attachment = (object) $attachment;
|
|
|
|
if ( ! is_object($attachment) )
|
|
return array();
|
|
|
|
$filename = basename($attachment->guid);
|
|
|
|
$objects = array('attachment');
|
|
|
|
if ( false !== strpos($filename, '.') )
|
|
$objects[] = 'attachment:' . substr($filename, strrpos($filename, '.') + 1);
|
|
if ( !empty($attachment->post_mime_type) ) {
|
|
$objects[] = 'attachment:' . $attachment->post_mime_type;
|
|
if ( false !== strpos($attachment->post_mime_type, '/') )
|
|
foreach ( explode('/', $attachment->post_mime_type) as $token )
|
|
if ( !empty($token) )
|
|
$objects[] = "attachment:$token";
|
|
}
|
|
|
|
$taxonomies = array();
|
|
foreach ( $objects as $object )
|
|
if ( $taxes = get_object_taxonomies($object) )
|
|
$taxonomies = array_merge($taxonomies, $taxes);
|
|
|
|
return array_unique($taxonomies);
|
|
}
|
|
|
|
/**
|
|
* Check if the installed version of GD supports particular image type
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string $mime_type
|
|
* @return bool
|
|
*/
|
|
function gd_edit_image_support($mime_type) {
|
|
if ( function_exists('imagetypes') ) {
|
|
switch( $mime_type ) {
|
|
case 'image/jpeg':
|
|
return (imagetypes() & IMG_JPG) != 0;
|
|
case 'image/png':
|
|
return (imagetypes() & IMG_PNG) != 0;
|
|
case 'image/gif':
|
|
return (imagetypes() & IMG_GIF) != 0;
|
|
}
|
|
} else {
|
|
switch( $mime_type ) {
|
|
case 'image/jpeg':
|
|
return function_exists('imagecreatefromjpeg');
|
|
case 'image/png':
|
|
return function_exists('imagecreatefrompng');
|
|
case 'image/gif':
|
|
return function_exists('imagecreatefromgif');
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Create new GD image resource with transparency support
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int $width Image width
|
|
* @param int $height Image height
|
|
* @return image resource
|
|
*/
|
|
function wp_imagecreatetruecolor($width, $height) {
|
|
$img = imagecreatetruecolor($width, $height);
|
|
if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) {
|
|
imagealphablending($img, false);
|
|
imagesavealpha($img, true);
|
|
}
|
|
return $img;
|
|
}
|
|
|
|
/**
|
|
* API for easily embedding rich media such as videos and images into content.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Embed
|
|
* @since 2.9.0
|
|
*/
|
|
class WP_Embed {
|
|
var $handlers = array();
|
|
var $post_ID;
|
|
var $usecache = true;
|
|
var $linkifunknown = true;
|
|
|
|
/**
|
|
* Constructor
|
|
*/
|
|
function __construct() {
|
|
// Hack to get the [embed] shortcode to run before wpautop()
|
|
add_filter( 'the_content', array(&$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(&$this, 'autoembed'), 8 );
|
|
|
|
// After a post is saved, invalidate the oEmbed cache
|
|
add_action( 'save_post', array(&$this, 'delete_oembed_caches') );
|
|
|
|
// After a post is saved, cache oEmbed items via AJAX
|
|
add_action( 'edit_form_advanced', array(&$this, 'maybe_run_ajax_cache') );
|
|
}
|
|
|
|
/**
|
|
* Process the [embed] shortcode.
|
|
*
|
|
* Since the [embed] shortcode needs to be run earlier than other shortcodes,
|
|
* this function removes all existing shortcodes, registers the [embed] shortcode,
|
|
* calls {@link do_shortcode()}, and then re-registers the old shortcodes.
|
|
*
|
|
* @uses $shortcode_tags
|
|
* @uses remove_all_shortcodes()
|
|
* @uses add_shortcode()
|
|
* @uses do_shortcode()
|
|
*
|
|
* @param string $content Content to parse
|
|
* @return string Content with shortcode parsed
|
|
*/
|
|
function run_shortcode( $content ) {
|
|
global $shortcode_tags;
|
|
|
|
// Back up current registered shortcodes and clear them all out
|
|
$orig_shortcode_tags = $shortcode_tags;
|
|
remove_all_shortcodes();
|
|
|
|
add_shortcode( 'embed', array(&$this, 'shortcode') );
|
|
|
|
// Do the shortcode (only the [embed] one is registered)
|
|
$content = do_shortcode( $content );
|
|
|
|
// Put the original shortcodes back
|
|
$shortcode_tags = $orig_shortcode_tags;
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* 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() {
|
|
global $post_ID;
|
|
|
|
if ( empty($post_ID) || empty($_GET['message']) || 1 != $_GET['message'] )
|
|
return;
|
|
|
|
?>
|
|
<script type="text/javascript">
|
|
/* <![CDATA[ */
|
|
jQuery(document).ready(function($){
|
|
$.get("<?php echo admin_url( 'admin-ajax.php?action=oembed-cache&post=' . $post_ID, 'relative' ); ?>");
|
|
});
|
|
/* ]]> */
|
|
</script>
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Register an embed handler. Do not use this function directly, use {@link wp_embed_register_handler()} instead.
|
|
* This function should probably also only be used for sites that do not support oEmbed.
|
|
*
|
|
* @param string $id An internal ID/name for the handler. Needs to be unique.
|
|
* @param string $regex The regex that will be used to see if this handler should be used for a URL.
|
|
* @param callback $callback The callback function that will be called if the regex is matched.
|
|
* @param int $priority Optional. Used to specify the order in which the registered handlers will be tested (default: 10). Lower numbers correspond with earlier testing, and handlers with the same priority are tested in the order in which they were added to the action.
|
|
*/
|
|
function register_handler( $id, $regex, $callback, $priority = 10 ) {
|
|
$this->handlers[$priority][$id] = array(
|
|
'regex' => $regex,
|
|
'callback' => $callback,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Unregister a previously registered embed handler. Do not use this function directly, use {@link wp_embed_unregister_handler()} instead.
|
|
*
|
|
* @param string $id The handler ID that should be removed.
|
|
* @param int $priority Optional. The priority of the handler to be removed (default: 10).
|
|
*/
|
|
function unregister_handler( $id, $priority = 10 ) {
|
|
if ( isset($this->handlers[$priority][$id]) )
|
|
unset($this->handlers[$priority][$id]);
|
|
}
|
|
|
|
/**
|
|
* The {@link do_shortcode()} callback function.
|
|
*
|
|
* Attempts to convert a URL into embed HTML. Starts by checking the URL against the regex of the registered embed handlers.
|
|
* If none of the regex matches and it's enabled, then the URL will be given to the {@link WP_oEmbed} class.
|
|
*
|
|
* @uses wp_oembed_get()
|
|
* @uses wp_parse_args()
|
|
* @uses wp_embed_defaults()
|
|
* @uses WP_Embed::maybe_make_link()
|
|
* @uses get_option()
|
|
* @uses current_user_can()
|
|
* @uses wp_cache_get()
|
|
* @uses wp_cache_set()
|
|
* @uses get_post_meta()
|
|
* @uses update_post_meta()
|
|
*
|
|
* @param array $attr Shortcode attributes.
|
|
* @param string $url The URL attempting to be embedded.
|
|
* @return string The embed HTML on success, otherwise the original URL.
|
|
*/
|
|
function shortcode( $attr, $url = '' ) {
|
|
global $post;
|
|
|
|
if ( empty($url) )
|
|
return '';
|
|
|
|
$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 ) {
|
|
foreach ( $handlers as $id => $handler ) {
|
|
if ( preg_match( $handler['regex'], $url, $matches ) && is_callable( $handler['callback'] ) ) {
|
|
if ( false !== $return = call_user_func( $handler['callback'], $matches, $attr, $url, $rawattr ) )
|
|
return apply_filters( 'embed_handler_html', $return, $url, $attr );
|
|
}
|
|
}
|
|
}
|
|
|
|
$post_ID = ( !empty($post->ID) ) ? $post->ID : null;
|
|
if ( !empty($this->post_ID) ) // Potentially set by WP_Embed::cache_oembed()
|
|
$post_ID = $this->post_ID;
|
|
|
|
// Unknown URL format. Let oEmbed have a go.
|
|
if ( $post_ID ) {
|
|
|
|
// Check for a cached result (stored in the post meta)
|
|
$cachekey = '_oembed_' . md5( $url . serialize( $attr ) );
|
|
if ( $this->usecache ) {
|
|
$cache = get_post_meta( $post_ID, $cachekey, true );
|
|
|
|
// Failures are cached
|
|
if ( '{{unknown}}' === $cache )
|
|
return $this->maybe_make_link( $url );
|
|
|
|
if ( !empty($cache) )
|
|
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' ) );
|
|
$html = wp_oembed_get( $url, $attr );
|
|
|
|
// Cache the result
|
|
$cache = ( $html ) ? $html : '{{unknown}}';
|
|
update_post_meta( $post_ID, $cachekey, $cache );
|
|
|
|
// If there was a result, return it
|
|
if ( $html )
|
|
return apply_filters( 'embed_oembed_html', $html, $url, $attr, $post_ID );
|
|
}
|
|
|
|
// Still unknown
|
|
return $this->maybe_make_link( $url );
|
|
}
|
|
|
|
/**
|
|
* Delete all oEmbed caches.
|
|
*
|
|
* @param int $post_ID Post ID to delete the caches for.
|
|
*/
|
|
function delete_oembed_caches( $post_ID ) {
|
|
$post_metas = get_post_custom_keys( $post_ID );
|
|
if ( empty($post_metas) )
|
|
return;
|
|
|
|
foreach( $post_metas as $post_meta_key ) {
|
|
if ( '_oembed_' == substr( $post_meta_key, 0, 8 ) )
|
|
delete_post_meta( $post_ID, $post_meta_key );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Triggers a caching of all oEmbed results.
|
|
*
|
|
* @param int $post_ID Post ID to do the caching for.
|
|
*/
|
|
function cache_oembed( $post_ID ) {
|
|
$post = get_post( $post_ID );
|
|
|
|
if ( empty($post->ID) || !in_array( $post->post_type, apply_filters( 'embed_cache_oembed_types', array( 'post', 'page' ) ) ) )
|
|
return;
|
|
|
|
// Trigger a caching
|
|
if ( !empty($post->post_content) ) {
|
|
$this->post_ID = $post->ID;
|
|
$this->usecache = false;
|
|
|
|
$content = $this->run_shortcode( $post->post_content );
|
|
if ( get_option('embed_autourls') )
|
|
$this->autoembed( $content );
|
|
|
|
$this->usecache = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Passes any unlinked URLs that are on their own line to {@link WP_Embed::shortcode()} for potential embedding.
|
|
*
|
|
* @uses WP_Embed::autoembed_callback()
|
|
*
|
|
* @param string $content The content to be searched.
|
|
* @return string Potentially modified $content.
|
|
*/
|
|
function autoembed( $content ) {
|
|
return preg_replace_callback( '|^\s*(https?://[^\s"]+)\s*$|im', array(&$this, 'autoembed_callback'), $content );
|
|
}
|
|
|
|
/**
|
|
* Callback function for {@link WP_Embed::autoembed()}.
|
|
*
|
|
* @uses WP_Embed::shortcode()
|
|
*
|
|
* @param array $match A regex match array.
|
|
* @return string The embed HTML on success, otherwise the original URL.
|
|
*/
|
|
function autoembed_callback( $match ) {
|
|
$oldval = $this->linkifunknown;
|
|
$this->linkifunknown = false;
|
|
$return = $this->shortcode( array(), $match[1] );
|
|
$this->linkifunknown = $oldval;
|
|
|
|
return "\n$return\n";
|
|
}
|
|
|
|
/**
|
|
* Conditionally makes a hyperlink based on an internal class variable.
|
|
*
|
|
* @param string $url URL to potentially be linked.
|
|
* @return string Linked URL or the original URL.
|
|
*/
|
|
function maybe_make_link( $url ) {
|
|
$output = ( $this->linkifunknown ) ? '<a href="' . esc_attr($url) . '">' . esc_html($url) . '</a>' : $url;
|
|
return apply_filters( 'embed_maybe_make_link', $output, $url );
|
|
}
|
|
}
|
|
$GLOBALS['wp_embed'] = new WP_Embed();
|
|
|
|
/**
|
|
* Register an embed handler. This function should probably only be used for sites that do not support oEmbed.
|
|
*
|
|
* @since 2.9.0
|
|
* @see WP_Embed::register_handler()
|
|
*/
|
|
function wp_embed_register_handler( $id, $regex, $callback, $priority = 10 ) {
|
|
global $wp_embed;
|
|
$wp_embed->register_handler( $id, $regex, $callback, $priority );
|
|
}
|
|
|
|
/**
|
|
* Unregister a previously registered embed handler.
|
|
*
|
|
* @since 2.9.0
|
|
* @see WP_Embed::unregister_handler()
|
|
*/
|
|
function wp_embed_unregister_handler( $id, $priority = 10 ) {
|
|
global $wp_embed;
|
|
$wp_embed->unregister_handler( $id, $priority );
|
|
}
|
|
|
|
/**
|
|
* Create default array of embed parameters.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @return array Default embed parameters.
|
|
*/
|
|
function wp_embed_defaults() {
|
|
if ( !empty($GLOBALS['content_width']) )
|
|
$theme_width = (int) $GLOBALS['content_width'];
|
|
|
|
$width = get_option('embed_size_w');
|
|
|
|
if ( empty($width) && !empty($theme_width) )
|
|
$width = $theme_width;
|
|
|
|
if ( empty($width) )
|
|
$width = 500;
|
|
|
|
$height = get_option('embed_size_h');
|
|
|
|
if ( empty($height) )
|
|
$height = 700;
|
|
|
|
return apply_filters( 'embed_defaults', array(
|
|
'width' => $width,
|
|
'height' => $height,
|
|
) );
|
|
}
|
|
|
|
/**
|
|
* Based on a supplied width/height example, return the biggest possible dimensions based on the max width/height.
|
|
*
|
|
* @since 2.9.0
|
|
* @uses wp_constrain_dimensions() This function passes the widths and the heights.
|
|
*
|
|
* @param int $example_width The width of an example embed.
|
|
* @param int $example_height The height of an example embed.
|
|
* @param int $max_width The maximum allowed width.
|
|
* @param int $max_height The maximum allowed height.
|
|
* @return array The maximum possible width and height based on the example ratio.
|
|
*/
|
|
function wp_expand_dimensions( $example_width, $example_height, $max_width, $max_height ) {
|
|
$example_width = (int) $example_width;
|
|
$example_height = (int) $example_height;
|
|
$max_width = (int) $max_width;
|
|
$max_height = (int) $max_height;
|
|
|
|
return wp_constrain_dimensions( $example_width * 1000000, $example_height * 1000000, $max_width, $max_height );
|
|
}
|
|
|
|
/**
|
|
* Attempts to fetch the embed HTML for a provided URL using oEmbed.
|
|
*
|
|
* @since 2.9.0
|
|
* @see WP_oEmbed
|
|
*
|
|
* @uses _wp_oembed_get_object()
|
|
* @uses WP_oEmbed::get_html()
|
|
*
|
|
* @param string $url The URL that should be embedded.
|
|
* @param array $args Additional arguments and parameters.
|
|
* @return bool|string False on failure or the embed HTML on success.
|
|
*/
|
|
function wp_oembed_get( $url, $args = '' ) {
|
|
require_once( ABSPATH . WPINC . '/class-oembed.php' );
|
|
$oembed = _wp_oembed_get_object();
|
|
return $oembed->get_html( $url, $args );
|
|
}
|
|
|
|
/**
|
|
* Adds a URL format and oEmbed provider URL pair.
|
|
*
|
|
* @since 2.9.0
|
|
* @see WP_oEmbed
|
|
*
|
|
* @uses _wp_oembed_get_object()
|
|
*
|
|
* @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.
|
|
*/
|
|
function wp_oembed_add_provider( $format, $provider, $regex = false ) {
|
|
require_once( ABSPATH . WPINC . '/class-oembed.php' );
|
|
$oembed = _wp_oembed_get_object();
|
|
$oembed->providers[$format] = array( $provider, $regex );
|
|
}
|
|
|
|
/**
|
|
* Removes an oEmbed provider.
|
|
*
|
|
* @since 3.5
|
|
* @see WP_oEmbed
|
|
*
|
|
* @uses _wp_oembed_get_object()
|
|
*
|
|
* @param string $format The URL format for the oEmbed provider to remove.
|
|
*/
|
|
function wp_oembed_remove_provider( $format ) {
|
|
require_once( ABSPATH . WPINC . '/class-oembed.php' );
|
|
|
|
$oembed = _wp_oembed_get_object();
|
|
|
|
if ( isset( $oembed->providers[ $format ] ) ) {
|
|
unset( $oembed->providers[ $format ] );
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* Prints default plupload arguments.
|
|
*
|
|
* @since 3.4.0
|
|
*/
|
|
function wp_plupload_default_settings() {
|
|
global $wp_scripts;
|
|
|
|
$max_upload_size = wp_max_upload_size();
|
|
|
|
$defaults = array(
|
|
'runtimes' => 'html5,silverlight,flash,html4',
|
|
'file_data_name' => 'async-upload', // key passed to $_FILE.
|
|
'multiple_queues' => true,
|
|
'max_file_size' => $max_upload_size . 'b',
|
|
'url' => admin_url( 'admin-ajax.php', 'relative' ),
|
|
'flash_swf_url' => includes_url( 'js/plupload/plupload.flash.swf' ),
|
|
'silverlight_xap_url' => includes_url( 'js/plupload/plupload.silverlight.xap' ),
|
|
'filters' => array( array( 'title' => __( 'Allowed Files' ), 'extensions' => '*') ),
|
|
'multipart' => true,
|
|
'urlstream_upload' => true,
|
|
);
|
|
|
|
$defaults = apply_filters( 'plupload_default_settings', $defaults );
|
|
|
|
$params = array(
|
|
'action' => 'upload-attachment',
|
|
);
|
|
|
|
$params = apply_filters( 'plupload_default_params', $params );
|
|
$params['_wpnonce'] = wp_create_nonce( 'media-form' );
|
|
$defaults['multipart_params'] = $params;
|
|
|
|
$settings = array(
|
|
'defaults' => $defaults,
|
|
'browser' => array(
|
|
'mobile' => wp_is_mobile(),
|
|
'supported' => _device_can_upload(),
|
|
),
|
|
);
|
|
|
|
$script = 'var _wpPluploadSettings = ' . json_encode( $settings ) . ';';
|
|
|
|
$data = $wp_scripts->get_data( 'wp-plupload', 'data' );
|
|
if ( $data )
|
|
$script = "$data\n$script";
|
|
|
|
$wp_scripts->add_data( 'wp-plupload', 'data', $script );
|
|
}
|
|
add_action( 'customize_controls_enqueue_scripts', 'wp_plupload_default_settings' );
|
|
|
|
|
|
/**
|
|
* Prepares an attachment post object for JS, where it is expected
|
|
* to be JSON-encoded and fit into an Attachment model.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param mixed $attachment Attachment ID or object.
|
|
* @return array Array of attachment details.
|
|
*/
|
|
function wp_prepare_attachment_for_js( $attachment ) {
|
|
if ( ! $attachment = get_post( $attachment ) )
|
|
return;
|
|
|
|
if ( 'attachment' != $attachment->post_type )
|
|
return;
|
|
|
|
$meta = wp_get_attachment_metadata( $attachment->ID );
|
|
list( $type, $subtype ) = explode( '/', $attachment->post_mime_type );
|
|
|
|
$attachment_url = wp_get_attachment_url( $attachment->ID );
|
|
|
|
$response = array(
|
|
'id' => $attachment->ID,
|
|
'title' => $attachment->post_title,
|
|
'filename' => basename( $attachment->guid ),
|
|
'url' => $attachment_url,
|
|
'alt' => get_post_meta( $attachment->ID, '_wp_attachment_image_alt', true ),
|
|
'author' => $attachment->post_author,
|
|
'description' => $attachment->post_content,
|
|
'caption' => $attachment->post_excerpt,
|
|
'name' => $attachment->post_name,
|
|
'status' => $attachment->post_status,
|
|
'uploadedTo' => $attachment->post_parent,
|
|
'date' => $attachment->post_date_gmt . ' UTC',
|
|
'modified' => $attachment->post_modified_gmt . ' UTC',
|
|
'mime' => $attachment->post_mime_type,
|
|
'type' => $type,
|
|
'subtype' => $subtype,
|
|
);
|
|
|
|
if ( 'image' === $type ) {
|
|
$sizes = array();
|
|
$base_url = str_replace( wp_basename( $attachment_url ), '', $attachment_url );
|
|
|
|
foreach ( $meta['sizes'] as $slug => $size ) {
|
|
$sizes[ $slug ] = array(
|
|
'height' => $size['height'],
|
|
'width' => $size['width'],
|
|
'url' => $base_url . $size['file'],
|
|
'orientation' => $size['height'] > $size['width'] ? 'portrait' : 'landscape',
|
|
);
|
|
}
|
|
|
|
$response = array_merge( $response, array(
|
|
'height' => $meta['height'],
|
|
'width' => $meta['width'],
|
|
'sizes' => $sizes,
|
|
'orientation' => $meta['height'] > $meta['width'] ? 'portrait' : 'landscape',
|
|
) );
|
|
}
|
|
|
|
return apply_filters( 'wp_prepare_attachment_for_js', $response, $attachment, $meta );
|
|
}
|
|
|
|
/**
|
|
* Prints the templates used in the media manager.
|
|
*
|
|
* @since 3.5.0
|
|
*/
|
|
function wp_print_media_templates( $attachment ) {
|
|
?>
|
|
<script type="text/html" id="tmpl-media-modal">
|
|
<div class="media-modal">
|
|
<div class="media-modal-header">
|
|
<h3><%- title %></h3>
|
|
<a class="media-modal-close" href="" title="<?php esc_attr_e('Close'); ?>"><?php echo 'Close'; ?></a>
|
|
</div>
|
|
<div class="media-modal-content"></div>
|
|
</div>
|
|
<div class="media-modal-backdrop"></div>
|
|
</script>
|
|
|
|
<script type="text/html" id="tmpl-media-workspace">
|
|
<div class="upload-attachments">
|
|
<% if ( selectOne ) { %>
|
|
<h3><?php _e( 'Drop a file here' ); ?></h3>
|
|
<span><?php _ex( 'or', 'Uploader: Drop a file here - or - Select a File' ); ?></span>
|
|
<a href="#" class="button-secondary"><?php _e( 'Select a File' ); ?></a>
|
|
<% } else { %>
|
|
<h3><?php _e( 'Drop files here' ); ?></h3>
|
|
<span><?php _ex( 'or', 'Uploader: Drop files here - or - Select Files' ); ?></span>
|
|
<a href="#" class="button-secondary"><?php _e( 'Select Files' ); ?></a>
|
|
<% } %>
|
|
|
|
<div class="media-progress-bar"><div></div></div>
|
|
</div>
|
|
</script>
|
|
|
|
<script type="text/html" id="tmpl-attachments">
|
|
<div class="attachments-header">
|
|
<h3><%- directions %></h3>
|
|
<input class="search" type="text" placeholder="<?php esc_attr_e('Search'); ?>" />
|
|
</div>
|
|
</script>
|
|
|
|
<script type="text/html" id="tmpl-attachment">
|
|
<div class="attachment-thumbnail <%- orientation %>">
|
|
<% if ( thumbnail ) { %>
|
|
<img src="<%- thumbnail %>" />
|
|
<% } %>
|
|
|
|
<% if ( uploading ) { %>
|
|
<div class="media-progress-bar"><div></div></div>
|
|
<% } %>
|
|
<div class="actions"></div>
|
|
</div>
|
|
<div class="describe"></div>
|
|
</script>
|
|
<?php
|
|
}
|