# Configuration:
- Web browser and its version: Chrome
- Operating system and its version: MacOS
- PDF.js version: 2.6.347
- Is a browser extension: No

# Steps to reproduce the problem:
1. Implement FindBar, including Find next / Find prev buttons

# What is the expected behavior? (add screenshot)

This might be intentional but seems a bit off. The PDFFindBar findPreviousButton / findNextButton should raise an event with options that can be passed directly to PDFindController.executeCommand

What went wrong? (add screenshot)

PDFBar raises an event on the EventBus which looks like this;

`this.eventBus.dispatch("find", { query: "hello",  ... type: "again" .... });`

https://github.com/mozilla/pdf.js/blob/00b4f86db301546d21d5dc79c61e2a9a829667a4/web/pdf_find_bar.js#L93-L105
[](url)
PDFFindController expects;

`pdfFindController.executeCommand("findagain", { query: "hello" });`

Which means you can't just pass the options through because the cmd doesn't match. Is there a reason PDFFindController doesn't just accept the following?

`pdfFindController.executeCommand("find", { query: "hello", type: "again" });`

Seems like it should work this way?

Thanks

let webViewerFileInputChange, webViewerOpenFile;
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
  webViewerFileInputChange = function (evt) {
    if (PDFViewerApplication.pdfViewer?.isInPresentationMode) {
      return; 
    }
    const file = evt.fileInput.files[0];
    if (!compatibilityParams.disableCreateObjectURL) {
      let url = URL.createObjectURL(file);
      if (file.name) {
        url = { url, originalUrl: file.name };
      }
      PDFViewerApplication.open(url);
    } else {
      PDFViewerApplication.setTitleUsingUrl(file.name);
      
      const fileReader = new FileReader();
      fileReader.onload = function webViewerChangeFileReaderOnload(event) {
        const buffer = event.target.result;
        PDFViewerApplication.open(new Uint8Array(buffer));
      };
      fileReader.readAsArrayBuffer(file);
    }
  };
  webViewerOpenFile = function (evt) {
    const openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
    document.getElementById(openFileInputName).click();
  };
}
function webViewerPresentationMode() {