[Bug] Overlay with Tabs Overview: Narrow size breaks presentation

[mdollinger]

Abstract

Steps to reproduce

1. Start Firefox with clean profile.
2. Install TST.
3. Open some Tabs, that have a long text in the <title> attribute
4. Move the ouse over such a Tab.
5. Wait for the overlay to appear

Expected result

The overlay is wide enough to shows all lines without line breaks

Actual result

The overlay seems to have a maximum width (although the screen has way mode space).
Thus the long items have a line break, which spoils the hierarchical structure:

Environment

• Platform (OS): Windows 10
• Version of Firefox: 115.4.0esr (64-Bit)
• Version (or revision) of Tree Style Tab: 3.9.19

[piroor]

It is a restriction of a WebExtensions based addon. We cannot show a popup wider than the sidebar area in regular way (we can open a new browser window and use it as a popup, but it means that the popup has a title bar and window controls - I think we can't accept such a "rich" tooltip!)

Currently TST just sets long long text as a "title" attribute of the element and Firefox shows it as a tooltip. The size of the tooltip is automatically calculated by Firefox and it is uncontrollable by addon.