1709823 - Better handle large dialogs when they do not fit in the window, e.g., scroll content or panel/popup

Status: NEW

(Toolkit :: Content Prompts, defect, P3)

Description

[:Gijs (he/him)]

In bug 1699430 I'm making it possible for larger dialogs to fit in the browser window, but we should still deal with the case where the dialog does not fit inside the window, e.g. for the bookmark editing dialog. Allowing the content of the dialog to scroll would help with this.

Comment 1

[Ed Lee :Mardak]

Instead of scrolling content, bug 1706279 comment 9 linked to specs showing a behavior that looks like a panel where the context extends out of the parent window. A mac screenshot of 88 bookmark menu had that behavior as a sheet in attachment 9219899 [details] where it was anchored to the bottom of chrome and extended out, but on windows/linux(?) the behavior is a modal prompt window that isn't anchored.

Seems like the proton panels used for the urlbar "add bookmark" or pocket/download/protections style have the anchoring and extending out, but don't have the modal-ness (e.g., disallow tab switch) nor persistence (ignore outside clicks).