Fullscreen Popup Windows

[bradtriebwasser]

Request for position on an emerging web specification

Information about the spec

• Spec Title: Fullscreen Popup Windows
• GitHub repository: https://github.com/bradtriebwasser/fullscreen-popup
• Explainer (if not README.md in the repository): https://github.com/bradtriebwasser/fullscreen-popup/blob/main/EXPLAINER.md

Design reviews and vendor positions

• TAG Design Review: Fullscreen Popup Windows w3ctag/design-reviews#840
• Mozilla standards-positions issue: Fullscreen Popup Windows mozilla/standards-positions#714

Anything else we need to know

Introduction

This proposal introduces the ability for web applications to open a fullscreen popup window, without the need for a separate calls to Window.open() and Element.requestFullscreen().

The proposed enhancement would allow web applications to create a fullscreen popup window on a target display from a single user activation. The window placement permission will be required for these capabilities.

Proposal

Allow sites with the window-management permission to open a fullscreen window on a specified display from a single user gesture. Scripts calling window.open() to request a popup window could also include a new fullscreen boolean window feature.

Fullscreen popup requests could also include window bounds features (e.g. left, top, width, height), with positions specified relative to the multi-screen origin, to request that the window be made fullscreen on the screen containing those bounds, and also to be used as the popup window bounds after exiting fullscreen.

Example Code

Basic Example:

window.open(url, '_blank', 'popup,fullscreen');

[annevk]

This depends on #117 it seems like.

Although from the example I don't understand where the target display comes in?

[bradtriebwasser]

Agree, this is dependant on #117 particularly the permission / permission policy since it gated on those.

The explainer has a more thorough example which demonstrates opening a fullscreen popup on a target display: https://github.com/bradtriebwasser/fullscreen-popup/blob/main/EXPLAINER.md#opening-a-fullscreen-popup-on-another-display

It's worth noting this proposal is independent of the ability to open popups on target displays, but the example is shown to show the capabilities of the feature in conjunction with #117's ability to open popups on any display.

[michaelwasserman]

Chromium is no longer pursuing this feature directly; see the superseding Standards Position request in Issue #345.