The status value 4 means "permanently reset", as opposed to 2, which
means "reset". The former implies that there's no way to enable the
mode because it's unsupported (but recognized).
Note: this commit also fixes an unrelated typo in CHANGELOG.md.
Using GCC 12.2.0 with the following build steps:
CFLAGS=-Og meson bld
ninja -C bld
...produces the compiler error:
../config.c:2000:18: error: ‘sym_equal’ may be used uninitialized
[-Werror=maybe-uninitialized]
This commit fixes that by using BUG() to assert that all possible
values are accounted for in the offending switch statement.
Key-binding sets are bound to a seat/configuration pair. The conf
reference is done when a new terminal instance is created.
When that same terminal instance is destroyed, the key binding set is
unref:ed.
If the terminal instance is destroyed *before* the key binding set has
been referenced, we’ll still unref it. This creates an imbalance.
In particular, when the there is exactly one other terminal instance
referencing that same key binding set, that terminal instance will
trigger a foot server crash as soon as it receives a key press/release
event. This happens because the next-to-last terminal instance brought
the reference count of the binding set down to 0, causing it to be
free:d.
Thus, we *must* reference the binding set *before* we can error
out (when instantiating a new terminal instance).
At this point, we don’t yet have a valid terminal instance. But,
that’s ok, because all the key_binding_new_for_term() did with the
terminal instance was get the "struct wayland" and "struct config"
pointers. So, rename the function and simply pass these pointers
explicitly.
Similarly, change key_binding_for() to take a "struct config" pointer,
rather than a "struct terminal" pointer.
Also rename key_binding_unref_term() -> key_binding_unref().
Before this patch, we would line-wrap the last row, just like any
other row, and then afterwards try to reverse this, by adjusting the
offset and free:ing and NULL:ing the "last row".
The problem with this is if the scrollback is full. In this case, the
row we’re freeing is the first row in the scrollback history. This
means we’ll crash as soon as the viewport is moved to the top of the
scrollback.
The fix is fairly, simple. Skip the post-processing logic, and instead
detect when we’re line-wrapping the last row, and skip the call to
line_wrap().
This way, the last row in the new grid corresponds to the last row in
the old grid.
Do this by using scrollback relative coordinates, and ensure the new
viewport is not larger than (grid_rows - screen_rows), as that would
mean the viewport crosses the scrollback wrap-around.
Foot 1.13.0 introduced a regression where non-trailing empty cells
were highlighted inconsistently (cells that shouldn’t be highlighted,
were, seemingly at random).
86663522d5 “fixed” this by never
highlighting *any* empty cells.
This meant the behavior, compared to foot 1.12 and earlier,
changed. In foot 1.12 and older versions, non-trailing empty cells
were highlighted, as long as the selection covered at least one of the
trailing non-empty cells.
This patch restores that behavior.
To understand how this works, lets first take a look at how selection
works:
When a selection is made, and updated (i.e. the mouse is dragged, or
the selection is extended through RMB etc), we need to (un)tag and dirty
the cells that are a) newly selected, or b) newly deselected. That is,
we look at the diff between the “old” and the “new” selection, and
only update those cells.
This is for performance reasons: iterating the entire selection is not
feasible with large selections. However, it also means we cannot
reason about empty cells; we simply don’t know if an empty cells is a
trailing empty cell, or a non-trailing one.
Then, when we render a frame, we iterate all the *visible*
and *selected* cells, once again tagging them as selected (this is
needed since a selected cell might have lost its selected tag if the
cell was written to, by the client application, after the selection
was made).
At this point, we *can* reason about empty cells.
So, to restore the highlighting behavior to that of foot 1.12, we do
this:
When working with the selection diffs when a selection is updated, we
don’t special case empty cells at all. Thus, all empty cells covered
by the selection is highlighted, and dirtied.
But, when rendering the frame, we _do_ special case them. The only
difference (compared to foot 1.12) is that we *must*
explicitly *clear* the selection tag, and dirty the empty cells. This
is to ensure the empty cells that were incorrectly highlighted by the
selection update algorithm, isn’t rendered as that.
This does have a slight performance impact, as empty cells are now
always re-rendered. The impact should however be small.
This fixes a regression, where empty cells "between" non-empty
cells (i.e. non-trailing empty cells) sometimes were incorrectly
highlighted.
The idea has always been to highlight exactly those cells that will
get extracted when they’re copied. This means we’ve not highlighted
trailing empty cells, but we _have_ highlighted other empty cells,
since they are converted to spaces when copied (whereas trailing empty
cells are skipped).
fa2d9f8699 changed how a selection is
updated. That is, which cells gets marked as selected, and which ones
gets unmarked.
Since we no longer walk all the cells, but instead work with pixman
regions representing selection diffs, we can no longer determine (with
certainty) which empty cells should be selected and which shouldn’t.
Before this patch (but after
fa2d9f8699), we sometimes incorrectly
highlighted empty cells that should not have been highlighted. This
happened when we’ve first (correctly) highlighted a region of empty
cells, but then shrink the selection such that all those empty cells
should be de-selected.
This patch changes the selection behavior to *never* highlight empty
cells. This fixes the regression, but also means slightly different
behavior, compared to pre-fa2d9f86996467ba33cc381f810ea966a4323381.
The other alternative is to always highlight all empty cells. But,
since I personally like the fact that we’re skipping trailing empty
cells, I prefer the approach taken by this patch.
Before this patch, we would line-wrap the last row, just like any
other row, and then afterwards try to reverse this, by adjusting the
offset and free:ing and NULL:ing the "last row".
The problem with this is if the scrollback is full. In this case, the
row we’re freeing is the first row in the scrollback history. This
means we’ll crash as soon as the viewport is moved to the top of the
scrollback.
The fix is fairly, simple. Skip the post-processing logic, and instead
detect when we’re line-wrapping the last row, and skip the call to
line_wrap().
This way, the last row in the new grid corresponds to the last row in
the old grid.
Do this by using scrollback relative coordinates, and ensure the new
viewport is not larger than (grid_rows - screen_rows), as that would
mean the viewport crosses the scrollback wrap-around.
Foot 1.13.0 introduced a regression where non-trailing empty cells
were highlighted inconsistently (cells that shouldn’t be highlighted,
were, seemingly at random).
86663522d5 “fixed” this by never
highlighting *any* empty cells.
This meant the behavior, compared to foot 1.12 and earlier,
changed. In foot 1.12 and older versions, non-trailing empty cells
were highlighted, as long as the selection covered at least one of the
trailing non-empty cells.
This patch restores that behavior.
To understand how this works, lets first take a look at how selection
works:
When a selection is made, and updated (i.e. the mouse is dragged, or
the selection is extended through RMB etc), we need to (un)tag and dirty
the cells that are a) newly selected, or b) newly deselected. That is,
we look at the diff between the “old” and the “new” selection, and
only update those cells.
This is for performance reasons: iterating the entire selection is not
feasible with large selections. However, it also means we cannot
reason about empty cells; we simply don’t know if an empty cells is a
trailing empty cell, or a non-trailing one.
Then, when we render a frame, we iterate all the *visible*
and *selected* cells, once again tagging them as selected (this is
needed since a selected cell might have lost its selected tag if the
cell was written to, by the client application, after the selection
was made).
At this point, we *can* reason about empty cells.
So, to restore the highlighting behavior to that of foot 1.12, we do
this:
When working with the selection diffs when a selection is updated, we
don’t special case empty cells at all. Thus, all empty cells covered
by the selection is highlighted, and dirtied.
But, when rendering the frame, we _do_ special case them. The only
difference (compared to foot 1.12) is that we *must*
explicitly *clear* the selection tag, and dirty the empty cells. This
is to ensure the empty cells that were incorrectly highlighted by the
selection update algorithm, isn’t rendered as that.
This does have a slight performance impact, as empty cells are now
always re-rendered. The impact should however be small.
This is my variant of the solarized theme, were only the first eight
colors (i.e. the "normal") colors are from the solarized theme. The
remaining eight (the "bright" colors) are brightened versions of the
"normal" colors. This results in a theme that is usually in all
applications, not just those that are "aware" that the terminal color
theme is "solarized".
This fixes a regression, where empty cells "between" non-empty
cells (i.e. non-trailing empty cells) sometimes were incorrectly
highlighted.
The idea has always been to highlight exactly those cells that will
get extracted when they’re copied. This means we’ve not highlighted
trailing empty cells, but we _have_ highlighted other empty cells,
since they are converted to spaces when copied (whereas trailing empty
cells are skipped).
fa2d9f8699 changed how a selection is
updated. That is, which cells gets marked as selected, and which ones
gets unmarked.
Since we no longer walk all the cells, but instead work with pixman
regions representing selection diffs, we can no longer determine (with
certainty) which empty cells should be selected and which shouldn’t.
Before this patch (but after
fa2d9f8699), we sometimes incorrectly
highlighted empty cells that should not have been highlighted. This
happened when we’ve first (correctly) highlighted a region of empty
cells, but then shrink the selection such that all those empty cells
should be de-selected.
This patch changes the selection behavior to *never* highlight empty
cells. This fixes the regression, but also means slightly different
behavior, compared to pre-fa2d9f86996467ba33cc381f810ea966a4323381.
The other alternative is to always highlight all empty cells. But,
since I personally like the fact that we’re skipping trailing empty
cells, I prefer the approach taken by this patch.
This adds an "underline-thickness" setting to the "main" section,
similar to the existing "underline-offset" setting. This setting is used
to specify a custom height for regular (= non-cursor) underlines.
Fixes#1136
In some cases, the compositor sends a pointer enter event with a NULL
surface. It’s unclear if this is a compositor bug, or a race (where
the compositor sends an enter event on a CSD surface at the same time
foot unmaps the CSDs). Regardless, this causes seat->mouse_focus to be
unset, which triggers a crash in foot on the next pointer motion
event.
This patch does two things:
a) log a warning when we receive a pointer event with a NULL surface
b) ignore motion events where seat->mouse_focus is NULL
In some cases, the compositor sends a pointer enter event with a NULL
surface. It’s unclear if this is a compositor bug, or a race (where
the compositor sends an enter event on a CSD surface at the same time
foot unmaps the CSDs). Regardless, this causes seat->mouse_focus to be
unset, which triggers a crash in foot on the next pointer motion
event.
This patch does two things:
a) log a warning when we receive a pointer event with a NULL surface
b) ignore motion events where seat->mouse_focus is NULL
When the window is resized and we reflow the text, we ended up
inserting an empty row at the bottom.
This happens whenever the actual last row has a hard linebreak (which
almost always is the case); we then end the reflow with a line break,
causing an extra, empty, row to be allocated and inserted.
This patch fixes this by detecting when:
1) the last row is empty
2) the next to last row has a hard line break
In this case, we roll back the last line break, by adjusting the new
offset we just calculated, and free:ing the empty row.
TODO: it would be nice if we could detect this in the reflow loop
instead, and avoid doing the last line break all together. I haven’t
yet been able to find a way to do this correctly.
Closes#1108
Systemd, when doing socket activation, pass file descriptors in a
non-stable order when there is multiples ones.
But we only use one, so we don't need to identify it, and the file
descriptors always start at 3.
So use 3 for the systemd service.
Source : sd_listen_fds (systemd man pages)
We also need to unset variables systemd pass to socket activated
process, since we don't need them and sub-process (footclient and
theirs forks) could be confused by those.
Closes#1107
