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<?php
/**
* Images processing.
*
* @package ClassiPress\Images
* @author AppThemes
* @since ClassiPress 3.4
*/
/**
* Set default post thumbnail size.
*
* Use a max width of 1200 and unlimited height for better responsive support.
*
* @since 4.0.0
*/
set_post_thumbnail_size( 1200, 9999 );
// Image sizes
//add_image_size( 'blog-thumbnail', 150, 150 ); // blog post thumbnail size
add_image_size( 'sidebar-thumbnail', 50, 50, true ); // sidebar blog thumbnail size
//add_image_size( 'ad-thumb', 75, 75, true );
//add_image_size( 'ad-small', 100, 100, true );
add_image_size( 'ad-medium', 250, 250, true );
//add_image_size( 'ad-large', 500, 500 );
/**
* Checks images for valid file size and type on ad submission form.
*
* @return array
*/
function cp_validate_image() {
global $cp_options;
$error_msg = array();
$max_size = ( $cp_options->max_image_size * 1024 ); // 1024 K = 1 MB. convert into bytes so we can compare file size to max size. 1048576 bytes = 1MB.
if ( empty( $_FILES['image']['name'] ) ) {
$error_msg;
}
foreach ( (array) $_FILES['image']['name'] as $key => $value ) {
// added for 3.0.1 to force image names to lowercase. some systems throw an error otherwise
$value = strtolower( $value );
if ( empty( $value ) ) {
continue;
}
if ( $max_size < $_FILES['image']['size'][ $key ] ) {
$size_diff = number_format( ( $_FILES['image']['size'][ $key ] - $max_size )/1024 );
$max_size_fmt = number_format( $cp_options->max_image_size );
$error_msg[] = '<strong>' . $_FILES['image']['name'][ $key ] . '</strong> ' . sprintf( __( 'exceeds the %1$s KB limit by %2$s KB. Please go back and upload a smaller image.', APP_TD ), $max_size_fmt, $size_diff );
} elseif ( ! cp_file_is_image( $_FILES['image']['tmp_name'][ $key ] ) ) {
$error_msg[] = '<strong>' . $_FILES['image']['name'][ $key ] . '</strong> ' . __( 'is not a valid image type (.gif, .jpg, .png). Please go back and upload a different image.', APP_TD );
}
}
return $error_msg;
}
/**
* Process each image that's being uploaded.
*
* @return array
*/
function cp_process_new_image() {
$postvals = array();
for ( $i = 0; $i < count( $_FILES['image']['tmp_name'] ); $i++ ) {
if ( empty( $_FILES['image']['tmp_name'][ $i ] ) ) {
continue;
}
// rename the image to a random number to prevent junk image names from coming in
$renamed = mt_rand( 1000, 1000000 ) . "." . appthemes_find_ext( $_FILES['image']['name'][ $i ] );
// Hack since WP can't handle multiple uploads as of 2.8.5
$upload = array( 'name' => $renamed, 'type' => $_FILES['image']['type'][ $i ], 'tmp_name' => $_FILES['image']['tmp_name'][ $i ], 'error' => $_FILES['image']['error'][ $i ], 'size' => $_FILES['image']['size'][ $i ] );
// need to set this in order to send to WP media
$overrides = array( 'test_form' => false );
// check and make sure the image has a valid extension and then upload it
$file = cp_image_upload( $upload );
// put all these keys into an array and session so we can associate the image to the post after generating the post id
if ( $file ) {
$postvals['attachment'][ $i ] = array( 'post_title' => $renamed, 'post_content' => '', 'post_excerpt' => '', 'post_mime_type' => $file['type'], 'guid' => $file['url'], 'file' => $file['file'] );
}
}
return $postvals;
}
/**
* Ties the uploaded files to the correct ad post and creates the multiple image sizes.
*
* @param int $post_id
* @param array $files
* @param bool $print (optional)
*
* @return void
*/
function cp_associate_images( $post_id, $files, $print = false ) {
$i = 1;
$image_count = count( $files );
if ( $image_count > 0 && $print ) {
echo html( 'p', __( 'Your ad images are now being processed...', APP_TD ) );
}
foreach ( $files as $key => $file ) {
$post_title = esc_attr( get_the_title( $post_id ) );
$attachment = array( 'post_title' => $post_title, 'post_content' => $file['post_content'], 'post_excerpt' => $file['post_excerpt'], 'post_mime_type' => $file['post_mime_type'], 'guid' => $file['guid'] );
$attach_id = wp_insert_attachment( $attachment, $file['file'], $post_id );
// create multiple sizes of the uploaded image via WP controls
wp_update_attachment_metadata( $attach_id, wp_generate_attachment_metadata( $attach_id, $file['file'] ) );
if ( $print ) {
echo html( 'p', sprintf( __( 'Image number %1$d of %2$s has been processed.', APP_TD ), $i, $image_count ) );
}
$i++;
}
}
/**
* Uploads an image file.
*
* @return array|bool Boolean false on failure
*/
function cp_image_upload( $upload ) {
if ( cp_file_is_image( $upload['tmp_name'] ) ) {
$overrides = array( 'test_form' => false );
// move image to the WP defined upload directory and set correct permissions
$file = wp_handle_upload( $upload, $overrides );
return $file;
}
return false;
}
/**
* Deletes the image from WordPress.
*
* @return void
*/
function cp_delete_image() {
if ( ! isset( $_POST['image'] ) ) {
return;
}
foreach ( (array) $_POST['image'] as $img_id_del ) {
if ( ! $img_id_del = absint( $img_id_del ) ) {
continue;
}
// get image object
$img_del = get_post( $img_id_del );
if ( ! $img_del || $img_del->post_type != 'attachment' ) {
continue;
}
if ( ! wp_delete_attachment( $img_id_del, true ) ) {
wp_die( __( 'Error in deleting the image.', APP_TD ) );
}
}
}
/**
* Updates the image alt and title text on edit ad page.
* @since 3.0.5
*
* @return void
*/
function cp_update_alt_text() {
if ( ! isset( $_POST['attachments'] ) || ! is_array( $_POST['attachments'] ) ) {
return;
}
foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
if ( ! isset( $attachment['image_alt'] ) ) {
continue;
}
$image_alt = esc_html( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) );
// update not needed
if ( $image_alt == esc_html( $attachment['image_alt'] ) ) {
continue;
}
$image_alt = wp_strip_all_tags( esc_html( $attachment['image_alt'] ), true );
$image_data = & get_post( $attachment_id );
if ( $image_data ) {
// update the image alt text for based on the id
update_post_meta( $attachment_id, '_wp_attachment_image_alt', addslashes( $image_alt ) );
// update the image title text. it's stored as a post title so it's different to update
$post = array();
$post['ID'] = $attachment_id;
$post['post_title'] = $image_alt;
wp_update_post( $post );
}
}
}
/**
* Checks if passed file is an image.
*
* @param string $path
*
* @return bool
*/
function cp_file_is_image( $path ) {
$info = @getimagesize( $path );
if ( empty( $info ) ) {
$result = false;
} elseif ( ! in_array( $info[2], array( IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG ) ) ) {
$result = false;
} else {
$result = true;
}
return apply_filters( 'cp_file_is_image', $result, $path );
}
/**
* Counts images associated to an ad.
*
* @param int $ad_id
*
* @return int
*/
function cp_count_ad_images( $ad_id ) {
$args = array( 'post_type' => 'attachment', 'numberposts' => -1, 'post_status' => null, 'post_parent' => $ad_id, 'order' => 'ASC', 'orderby' => 'ID', 'no_found_rows' => true );
// get all the images associated to this ad
$images = get_posts( $args );
$imagecount = count( $images );
return $imagecount;
}
/**
* Returns the featured image id for a post.
*
* @param int $post_id
*
* @return int
*/
function cp_get_featured_image_id( $post_id ) {
global $images_data;
$attachment_query = array(
'post_parent' => $post_id,
'post_status' => 'inherit',
'numberposts' => 1,
'post_type' => 'attachment',
'post_mime_type' => 'image',
'order' => 'ASC',
'orderby' => 'ID',
);
$attachment_ids = get_post_meta( $post_id, '_app_media', true );
if ( ! empty( $attachment_ids ) ) {
$attachment_query = array_merge( $attachment_query, array(
'post__in' => $attachment_ids,
'orderby' => 'post__in'
) );
$images = get_children( $attachment_query );
if ( $images ) {
$image = array_shift( $images );
$image_id = $image->ID;
}
} elseif ( isset( $images_data[ $post_id ] ) ) {
$image_id = $images_data[ $post_id ];
} else {
$images = get_children( $attachment_query );
if ( $images ) {
$image = array_shift( $images );
$image_id = $image->ID;
}
}
if ( ! isset( $image_id ) || ! is_numeric( $image_id ) ) {
$image_id = 0;
}
return $image_id;
}
/**
* Displays ad thumbnail. Use in the loop.
*
* @return void
*/
if ( ! function_exists( 'cp_ad_loop_thumbnail' ) ) :
function cp_ad_loop_thumbnail() {
global $post, $cp_options;
// go see if any images are associated with the ad
$image_id = cp_get_featured_image_id( $post->ID );
// set the class based on if the hover preview option is set to "yes"
$prevclass = ( $cp_options->ad_image_preview ) ? 'preview' : 'nopreview';
if ( $image_id > 0 ) {
// get 75x75 v3.0.5+ image size
$adthumbarray = wp_get_attachment_image( $image_id, 'ad-medium' );
// grab the large image for onhover preview
$adlargearray = wp_get_attachment_image_src( $image_id, 'large' );
$img_large_url_raw = $adlargearray[0];
// must be a v3.0.5+ created ad
if ( $adthumbarray ) {
echo '<a href="'. get_permalink() .'" title="'. the_title_attribute( 'echo=0' ) .'" class="'. $prevclass .'" data-rel="'. $img_large_url_raw .'">'. $adthumbarray .'</a>';
// maybe a v3.0 legacy ad
} else {
$adthumblegarray = wp_get_attachment_image_src($image_id, 'thumbnail');
$img_thumbleg_url_raw = $adthumblegarray[0];
echo '<a href="'. get_permalink() .'" title="'. the_title_attribute( 'echo=0' ) .'" class="'. $prevclass .'" data-rel="'. $img_large_url_raw .'">'. $adthumblegarray .'</a>';
}
// no image so return the placeholder thumbnail
} else {
echo '<a href="' . get_permalink() . '" title="' . the_title_attribute( 'echo=0' ) . '"><img class="attachment-ad-medium" alt="" title="" src="' . appthemes_locate_template_uri( 'assets/images/placeholder.png' ) . '" /></a>';
}
}
endif;
/**
* Displays the main image associated to a blog post used on the single page.
*
* @since 3.5.2
*/
function cp_get_blog_image_url() {
global $post;
$image_medium = wp_get_attachment_image_src( get_post_thumbnail_id(), 'medium' );
$image_large = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large' );
$alt = get_post_meta( get_post_thumbnail_id(), '_wp_attachment_image_alt', true );
echo '<a href="' . esc_url( $image_large[0] ) . '" class="img-main" data-rel="colorbox" title="' . esc_attr( the_title_attribute( 'echo=0' ) ) . '">' .
'<img class="attachment-blog-thumbnail img-responsive" src="' . esc_url( $image_medium[0] ) . '" title="' . esc_attr( $alt ) . '" alt="'. esc_attr( $alt ) .'" /></a>';
}
/**
* Returns the image link. Used in the edit-ad page template.
*
* @param int $id (optional)
* @param string $size (optional)
* @param bool $permalink (optional)
* @param bool $icon (optional)
* @param bool $text (optional)
*
* @return string
*/
function cp_get_attachment_link( $id = 0, $size = 'thumbnail', $permalink = false, $icon = false, $text = false ) {
$id = intval( $id );
$_post = get_post( $id );
if ( ( 'attachment' != $_post->post_type ) || ! $url = wp_get_attachment_url( $_post->ID ) ) {
return __( 'Missing Attachment', APP_TD );
}
if ( $permalink ) {
$url = get_attachment_link( $_post->ID );
}
$post_title = esc_attr( $_post->post_title );
if ( $text ) {
$link_text = esc_attr( $text );
} elseif ( ( is_int( $size ) && $size != 0 ) || ( is_string( $size ) && $size != 'none' ) || $size != false ) {
$link_text = wp_get_attachment_image( $id, $size, $icon );
} else {
$link_text = '';
}
if ( trim( $link_text ) == '' ) {
$link_text = $_post->post_title;
}
return apply_filters( 'cp_get_attachment_link', "<a target='_blank' href='$url' alt='' class='post-gallery' data-rel='colorbox' title='$post_title'>$link_text</a>", $id, $size, $permalink, $icon, $text );
}
/**
* Displays manage images form. Used on the ad edit page.
*
* @param int $ad_id
*
* @return int
*/
if ( ! function_exists( 'cp_get_ad_images' ) ) {
function cp_get_ad_images( $ad_id ) {
$args = array( 'post_type' => 'attachment', 'numberposts' => -1, 'post_status' => null, 'post_parent' => $ad_id, 'order' => 'ASC', 'orderby' => 'ID', 'no_found_rows' => true );
// get all the images associated to this ad
$images = get_posts( $args );
$imagecount = count( $images );
// make sure we have images associated to the ad
if ( ! $images ) {
return $imagecount;
}
$i = 1;
$media_dims = '';
foreach ( $images as $image ) {
// go get the width and height fields since they are stored in meta data
$meta = wp_get_attachment_metadata( $image->ID );
if ( is_array( $meta ) && array_key_exists( 'width', $meta ) && array_key_exists( 'height', $meta ) ) {
$media_dims = "<span id='media-dims-". $image->ID ."'>{$meta['width']} × {$meta['height']}</span> ";
}
?>
<li class="images">
<div class="labelwrapper">
<label><?php _e( 'Image', APP_TD ); ?> <?php echo $i; ?>:</label>
</div>
<div class="thumb-wrap-edit">
<?php echo cp_get_attachment_link( $image->ID ); ?>
</div>
<div class="image-meta">
<p class="image-delete"><input class="checkbox" type="checkbox" name="image[]" value="<?php echo $image->ID; ?>"> <?php _e( 'Delete Image', APP_TD ); ?></p>
<p class="image-meta"><strong><?php _e( 'Upload Date:', APP_TD ); ?></strong> <?php echo appthemes_display_date( $image->post_date, 'date' ); ?></p>
<p class="image-meta"><strong><?php _e( 'File Info:', APP_TD ); ?></strong> <?php echo $media_dims; ?> <?php echo $image->post_mime_type; ?></p>
</div>
<div class="clr"></div>
<?php // get the alt text and print out the field
$alt = get_post_meta( $image->ID, '_wp_attachment_image_alt', true ); ?>
<p class="alt-text">
<div class="labelwrapper">
<label><?php _e( 'Alt Text:', APP_TD ); ?></label>
</div>
<input type="text" class="text" name="attachments[<?php echo $image->ID; ?>][image_alt]" id="image_alt" value="<?php echo esc_attr( stripslashes( $alt ) ); ?>" />
</p>
<div class="clr"></div>
</li>
<?php
$i++;
}
return $imagecount;
}
}
/**
* Displays form fields for adding new images.
*
* @param int $imagecount
*
* @return void
*/
function cp_ad_edit_image_input_fields( $imagecount ) {
global $cp_options, $wp_query;
$disabled = '';
// get the max number of images allowed option
$maximages = $cp_options->num_images;
// figure out how many image upload fields we need
$imageboxes = ( $maximages - $imagecount );
// now loop through and print out the upload fields
for ( $i = 0; $i < $imageboxes; $i++ ) {
$next = $i + 1;
if ( $i > 0 ) $disabled = 'disabled="disabled"';
$field = array(
'field_id' => '0',
'field_name' => array( 'image' ),
'field_label' => __( 'Add Image', APP_TD ),
'field_desc' => '',
'field_type' => 'image-input',
'field_values' => '',
'field_tooltip' => '',
'field_req' => '1',
'field_min_length' => '0',
);
$wp_query->set( 'app_field_array', (object) $field );
$wp_query->set( 'app_field_token', "<input type=\"file\" name=\"image[]\" id=\"upload$i\" class=\"fileupload\" onchange=\"enableNextImage(this,$next)\" $disabled" . ' />' );
appthemes_get_template_part( 'parts/form-field', 'image-input' );
}
?>
<p class="help-text"><?php printf( __( 'You are allowed %s image(s) per ad.', APP_TD ), $maximages ); ?> <?php echo $cp_options->max_image_size; ?><?php _e( 'KB max file size per image.', APP_TD ); ?> <?php _e( 'Check the box next to each image you wish to delete.', APP_TD ); ?></p>
<?php
}
/**
* Collects and cache featured images for displayed posts.
*
* @return void
*/
function cp_collect_featured_images() {
global $wpdb, $posts, $pageposts, $wp_query, $images_data;
if ( isset( $posts ) && is_array( $posts ) ) {
foreach ( $posts as $post ) {
$post_ids[] = $post->ID;
}
}
if ( isset( $pageposts ) && is_array( $pageposts ) ) {
foreach ( $pageposts as $post ) {
$post_ids[] = $post->ID;
}
}
if ( isset( $wp_query->posts ) && is_array( $wp_query->posts ) ) {
foreach ( $wp_query->posts as $post ) {
$post_ids[] = $post->ID;
}
}
if ( isset( $post_ids ) && is_array( $post_ids ) ) {
$post_ids = array_unique( $post_ids );
$post_list = implode( ",", $post_ids );
$images = $wpdb->get_results( "SELECT * FROM $wpdb->posts WHERE post_parent IN ($post_list) AND (post_mime_type LIKE 'image/%') AND post_type = 'attachment' AND (post_status = 'inherit') ORDER BY ID ASC" );
}
if ( isset( $images ) && is_array( $images ) ) {
foreach( $images as $image ) {
if ( ! isset( $images_data[ $image->post_parent ] ) ) {
$images_data[ $image->post_parent ] = $image->ID;
}
}
// create cache for images
update_post_caches( $images, 'post', false, true );
}
if ( isset( $post_ids ) && is_array( $post_ids ) ) {
foreach ( $post_ids as $post_id ) {
if ( ! isset( $images_data[ $post_id ] ) ) {
$images_data[ $post_id ] = 0;
}
}
}
}
/**
* Outputs the media manager.
*/
function cp_media_manager( $post_id, $atts, $params = array() ) {
if ( ! current_theme_supports('app-media-manager') ) {
return;
}
appthemes_media_manager( $post_id, $atts, $params );
}
/**
* Get a cover image from the same taxonomy (category/post_tag) if one doesn't already exist.
*
* @since 4.0.0
*
* @param array|object $args
* @return array $image
*/
function cp_tax_cover_image( $args ) {
global $wp_query;
$image = false;
if ( empty( $args[ 'object_ids' ] ) && ( ! isset( $args[ 'images' ] ) || empty( $args[ 'images' ] ) ) ) {
if ( empty( $wp_query->posts ) ) {
return $image;
}
$args[ 'object_ids' ] = wp_list_pluck( $wp_query->posts, 'ID' );
}
if ( ( ! isset( $args[ 'images' ] ) || empty( $args[ 'images' ] ) ) && ( isset( $args[ 'object_ids' ] ) && ! empty( $args[ 'object_ids' ] ) ) ) {
// No image so query for a new one in the same category/tax.
if ( ! $image ) {
$attachments = new WP_Query( array(
'post_parent__in' => $args[ 'object_ids' ],
'post_type' => 'attachment',
'post_status' => 'inherit',
'posts_per_page' => 1,
'orderby' => 'rand',
'update_post_term_cache' => false,
'no_found_rows' => true,
) );
// Get the first image it finds.
if ( $attachments->have_posts() ) {
$image = wp_get_attachment_image_src( $attachments->posts[0]->ID, $args[ 'size' ] );
}
}
} elseif ( isset( $args[ 'images' ] ) && ! empty( $args[ 'images' ] ) ) {
shuffle( $args[ 'images' ] );
$image = wp_get_attachment_image_src( current( $args[ 'images' ] ), $args[ 'size' ] );
}
/**
* Filters the cover image from the same taxonomy.
*
* @since 4.0.0
*
* @param string $image The url to the image.
* @param array $args The arguments for the image.
*/
return apply_filters( 'cp_tax_cover_image', $image, $args );
}