PDFElement: event property

Value

An object with one property:

prefix

A string: this element's own event:prefix, or "" when it has none (and inherits). The only value that does anything is "type": events are then named after the element, so load becomes pdf-file-load or pdf-page-load. "-" turns an inherited prefix off.

The attribute is multi-homed: it works on the WebPDF <script>, on every <pdf-file> and on every <pdf-page>, and the nearest one wins.

The prefix is read when an event fires, so a change applies to the next event.

Examples

Telling file and page events apart

Page events bubble through their file, so prefixes make the two easy to tell apart:

<script src=//new.webpdf.pro/.js type=module event:prefix=type></script>

document.addEventListener("pdf-file-load", (event) => console.log("file", event.target));
document.addEventListener("pdf-page-load", (event) => console.log("page", event.target));

Specifications

Not part of any specification. <pdf-file> and <pdf-page> are autonomous custom elements defined by WebPDF.pro.

Browser compatibility

See also

• Using WebPDF
• The event:prefix attribute