This mode can be set by client programs with the DECSET, DECRST,
XTSAVE and XTRESTORE sequences by using 27127 as the parameter.
The sequence "\E[27;1;27~" is encoded in the same way as is done by
xterm's "modifyOtherKeys" mode. Even though xterm itself never emits
such a sequence for the Escape key, many programs already have
support for parsing this style of key sequence.
There are two different escape sequences that can be used to set the
cursor blink state: ‘CSI ? 12 h/l’ and ‘CSI Ps SP q’.
Up until now, they both modified the same internal state in foot. This
meant you could enable a blinking cursor with e.g. ‘CSI ? 12 h’ and
then disable it with ‘CSI 2 SP q’.
Since the ‘CSI ? 12’ escapes are used in the civis/cnorm/cvvis
terminfo entries, applications often ended up disabling the blink
state on exit (typically be emitting ‘cnorm’), requiring users to
manually re-enable blinking.
By splitting the internal state into two separate states, we can
improve the situation.
The cursor will blink if at least one of the two have been enabled.
The setting in foot.ini sets the default state of the ‘CSI Ps SP q’
escape.
This means if the user has enabled blinking in the configuration, the
cursor will blink regardless of civis/cnorm/cvvis. Which probably is
what the user wants.
If the user has NOT enabled blinking, civis/cnorm/cvvis act as
intended: cvvis blink, civis and cnorm do not.
If an application overrides the cursor blink/style with ‘CSI Ps SP q’,
that will override the user’s setting in foot.ini. But most likely
that too is intended (for example, the user may have configured the
application to use a different cursor style). And, a well written
application will emit the ‘Se’ terminfo sequence on exit, which in
foot is defined to ‘CSI SP q’, which will reset both the style and
blink state to the user configured style/state.
Closes#218
Add anew config option, ‘bell=none|set-urgency’. When set to
‘set-urgency’, the margins will be painted in red (if the window did
not have keyboard focus).
This is intended as a cheap replacement for the ‘urgency’ hint, that
doesn’t (yet) exist on Wayland.
Closes#157
E.g. only set mouse reporting to NONE, if mouse reporting mode is SGR
and an DECRST SGR is issued.
Do *not* reset the mouse mode if e.g. mouse reporting mode is SGR and
an DECRST URXVT is issued.
Previously, our secondary DA response indicated a) VT420, b) an XTerm
version number.
Now, we indicate VT220 (which corresponds to the primary DA response),
and we report foot's version number as MMmmpp. I.e major, minor and
patch versions, using two digits.
E.g. 1.4.2 is encoded as 010402
A lot of the escape sequences on the "CSI Ps ; Ps ; Ps t" form are
expected to return a reply. Thus, not having these implemented means
we will hang if the client sends these escapes.
Not all of these escapes can be meaningfully implemented on Wayland,
and thus this implementation is best effort.
We now support the following escapes:
* 11t - report if window is iconified (always replies "no")
* 13t - report window position (always replies 0,0)
* 13;2t - report text area position (replies with margins, since we
cannot get the window's position)
* 14t - report text area size, in pixels
* 14;2t - report window size, in pixels
* 15t - report screen size, in pixels
* 16t - report cell size, in pixels
* 18t - report text area size, in cells
* 19t - report screen size, in cells
All are printf() formatter related. Even if a variable is e.g. a
'short', when used in an expression like '<variable> - 1' it is
promoted to an 'int'.
Closes#16
This fixes an issue where we failed to restore the cursor correctly
when exiting from the alternate screen, if the client had sent escapes
to save the cursor position while inside the alternate screen.
This was because we used the *same* storage for saving the cursor
position through escapes, as for saving it when entering the alternate
screen.
Fix by using a custom variable dedicated to normal <--> alt screen
switching.
Update the sixels' 'row' attribute when re-flowing a grid, to ensure
it is rendered at the correct place.
This should work in most cases, but will break when the cell size has
changed (e.g. font size increase/decrease, or a DPI change).
This patch also moves the sixel image list from the terminal struct
into the grid struct. The sixels are per-grid after all.
