Applies edits to a media item and creates a new attachment record.

Determines an image’s width and height dimensions based on the source file.

Inserts the attachment post in the database. Does not update the attachment meta.

Updates the attached file and image meta data when the original image was edited.

Verifies the contents of a file against its ED25519 signature.

Deletes all files that belong to the given attachment.

Outputs the formatted file list for the theme editor.

Import theme starter content into the customized state.

Prepare starter content attachments.

Prepares a single attachment output for response.

Get URL to link the user to when closing the Customizer.

Adds ‘srcset’ and ‘sizes’ attributes to an existing ‘img’ element.

A helper function to calculate the image sources to include in a ‘srcset’ attribute.

Creates an attachment ‘object’.

Ajax handler for cropping an image.

Handles the title column output.

Refresh the parameters passed to the JavaScript via JSON.

Loads the WP image-editing interface.

Copy an existing image file.

Generate attachment meta data and create image sub-sizes for images.

Crops an image to a given size.

Displays non-editable attachment metadata in the publish meta box.

Retrieve HTML form for modifying the image attachment.

Handles the process of uploading media.

Downloads an image from the specified URL and attaches it to a post.

Filters input from media_upload_form_handler() and assigns a default post_title from the file name if none supplied.

Saves a file submitted from a POST request and create an attachment post for it.

Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().

Ajax handler for sending a link to the editor.

Handle importer uploading and add attachment.

Create an attachment ‘object’.

Display second step of custom header image page.

Upload the file to be cropped in the second step.

Display third step of custom header image page.

Handle an Image upload for the background image.

Retrieve theme data from parsed theme file.

Retrieve icon URL and Path.

Retrieves an array of posts based on query variables.

Parses various taxonomy related query vars.

Create a file in the upload folder with given content.

Returns an array containing the current upload directory’s path and URL.

Returns preferred mime-type and extension based on provided file’s extension and mime, or current file’s extension and mime.

Builds an output filename based on current file, and adding proper suffix

Prepares an attachment post object for JS, where it is expected to be JSON-encoded and fit into an Attachment model.

Retrieves taxonomies attached to given the attachment.

Retrieves an image to represent an attachment.

Scale an image to fit a particular size (such as ‘thumb’ or ‘medium’).

Retrieve the icon for a MIME type or attachment.

Retrieve the URL for an attachment.

Retrieve thumbnail for an attachment.

Retrieve URL for an attachment thumbnail.