undock layer side panel

[drinehart1]

Request for feature: add ability to "undock" layer side panel. Currently user can only show/hide this panel (button) or dock to different [existing] panel however ability to undock to separate window would provide additional viewing space for images, assuming user has multi-monitor setup.

[jbms]

This might be implementable, but there are a number of challenges:

• These separate windows would have to be created as popup windows, which browsers generally do not allow except by explicit user permission.
• The configuration of panels is part of the Neuroglancer JSON state (encoded in the URL). In the case that there are popup windows in addition to the main window, there would be the question of how to encode the size and position of these additional windows as part of the state. The exact size/position is unlikely to be applicable if opened again later, especially if by a different user.
• The user may be using a tiling window manager that ignores the requested position/size when a new window is opened.

Overall I am inclined to think that the cost would outweigh the benefit, but I'm open to more discussion about this.

Do you have any examples of existing web applications that make use of popup windows in a similar way?