On Wed, 2018-09-26 at 18:52 -0500, David C. Rankin wrote: > All, > > Thanks to the other "is there a signal?" question, that reminded me I > have been looking for a signal (or way) to detect when the user has > the mouse over the titlebar of the main window in an editor where I > would like to activate a tooltip showing the absolute path for the > file in the currently focused textview. I just cannot find a signal > or event window scheme to do it > -- > probably because the main window titlebar is owned by the window > manager and not the application. But still, I see other editors that > are capable of this. > > Is there any such signal, or something that can be used in > conjunction with > the set_window_title call that would also provide a tooltip on > mouseover I could respond to?
In the specific case of Client Side Decorations (CSD), like in Gnome, applications can use GtkHeaderBar, where you can set a tooltip. In Evince we do that for a similar use case you mention. A GtkHeaderBar can have a title and subtitle. In the subtitle we present the filename (basename), but you can get the full path through the tooltip. -- Germán Poo-Caamaño http://calcifer.org/
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