The UI now can send a 'Scroll' key, whose value is the scrolling
amount encoded as a signed integer. This replaces the MouseWheelUp
and MouseWheelDown keys.
The NCursesUI now has a ncurses_wheel_scroll_amount ui_option that
controls that amount, it can be negative to swap scrolling direction.
Fixes#3045
The current implementation treats left mouse button clicks as a
generic "mouse press" modifier, this commit extends the list of
modifiers by adding a "right mouse click" one.
The proper way to implement this would be to ship the coordinates
of mouse key press events in each `Key` object, and pass whichever
button was clicked as a codepoint value (instead of coordinates
currently), but this would require more work.
This commit allows:
* right clicks to set the cursor of the main selection
* control-right clicks to merge all the selections, and then set
its cursor
Fixes#843
By setting the ncurses_builtin_key_parser ui_option to true, we
can disable ncurses parsing of key strokes to get less portable
parsing but support for more complex modifiers.
Ideally, something better should be done (re #2554) but this is a decent
intermediate step for some useful keys.
Note: NCurses supports parsing these keys when shifted (KEY_SR,
_SLEFT, S_RIGHT, etc), but it does not do the same thing for the other
modifiers.
Window can be resized with an "offset_pos" flag, which means that
the resize took place on the top left corner of the window, leading
to a change in current window position. This is treated as temporary
and the position change is stored in a m_position_offset field.
That allows the ncurses UI to offset the position when it displays
a Search menu, so that the window does not constantly scroll when
the search menu open/closes. The window will only scroll if it needs
to in order to keep the main selectin visible.
Add a UserInterface::is_ok method and return false on
SIGHUP/stdin closing/socket dropping
This should be cleaner and more robust than the previous SIGHUP
handling code.
Fixes#1594
Shifted function keys are not well standardized around terminals,
Shift F(N) usually returns F(X) + N, with X=12 on xterm, X=10 on
rxvt-unicode... Default to X=12 and make it configuable through
the ncurses_shift_function_key ui_option.
This fixes what #1898 tried to.
Because keyboard layouts vary, the shift-modifier `<s-…>` is only supported
for special keys (like `<up>` and `<home>`) and for ASCII lowercase where
we assume the shift-modifier just produces the matching uppercase character.
Even that's not universally true, since in Turkish `i` and `I` are not an
uppercase/lowercase pair, but Kakoune's default keyboard mappings already
assume en-US mappings for mnemonic purposes.
Mappings of the form `<s-x>` are normalized to `<X>` when `x` is an ASCII
character. `<backtab>` is removed, since we can now say `<s-tab>`.
reset the mouse state so that the terminal can take back control
of the mouse while Kakoune is suspended, and does not emit focus
events anymore.
Fixes#1816
We were generating a string, then splitting it into lines, there is
no need for that, we can directly generate a vector of lines and
simplify the code.
The solution is a bit hackish, as we only consider the 8th bit to
mean alt in normal mode, because its unlikely accentuated characters
are going to be mapped there. It fixes using Alt on xterm, and
probably on iterm2 as well (not requiring the meta-sends-esc config
change anymore)
This round trip through an input callback expected to call
is_key_available and get_key was overcomplicated, just send the
keys as they arrive, the client is already buffering due to urgent
event mode.
Add a ColumnCount type and use it in place of CharCount whenever
more appropriate, take column size of codepoints into account for
vertical movements and docstring wrapping.
Fixes#811
Use a wrapper for sigaction in place of signal to ensure that the
SA_RESTART flag is set for all signals used.
Signed-off-by: Daniel Robertson <danlrobertson89@gmail.com>
