[Feature]Autohide mode

[kshpytsya]

Add an option to have TabTree become visible only when cursor is hovered above left (or right) window border. The panel should be an overlay (whatever the proper term is) in order not to cause resizing of the main web-page area.

[strigona-worksight]

Sorry, that was my mistake, I got confused with the auto-hide option for fullscreen.

[tsmithe]

I would like to second this request!

[mighelch]

Will this be implemented?

[traxium]

Added 2 options to auto-hide Tab Tree:

• in maximized windows
• in normal windows
• (and an about:config option for fullscreen windows was changed from extensions.tabtree.fullscreen-show to *.auto-hide-when-fullscreen)

Added a keyboard shortcut:

• F8 — toggles the option to auto-hide Tab Tree (e.g. if an active window is maximized it toggles the option for maximized windows and so on)

  or if there's only one tab and the option "Hide the tab tree when there's only one tab" (extensions.tabtree.hide-tabtree-with-one-tab) is enabled then F8 temporary brings up the tab tree

I thought that maybe there was no point in auto-hiding the tab tree in normal (not maximized) windows. It's less convenient to hover over the side in this case then when a window is maximized or in fullscreen. So I decided to add an extra option for enabling auto-hiding only in maximized and fullscreen windows.

I'll add overlay behavior later as an option. By the way, should it be enabled or disabled by default?

[traxium]

Added description about F8 key to https://addons.mozilla.org/en-US/firefox/addon/tab-tree/ (description.en-us.htm)