This gives instant feedback when changing cursor theme or size.
It only works for server side cursors or clients using the
cursor-shape protocol.
Fixes: #1619
Addresses UX degradation introduced by commit 1d3ed457.
This prevents clicks with small movement with the intention of opening
the menu from unexpectedly closing the menu or selecting a menu item.
Add optional drop-shadows to windows using server-side decoration.
Shadows can be enabled/disabled rc.xml and their appearance configured
in themerc. The default is no shadows to preserve current behaviour.
The shadows are drawn in fixed corner and edge buffers shared between
all windows, the edges are scaled to size depending on the size of each
window. Two sets of buffers are used to give the different appearances
for active and inactive windows. I use separate corner/edge buffers for
a few reasons:
- It avoids needing to store a separate large shadow buffer per window
- It avoids needing to redraw the shadows when the window is being
resized
- Compositing the shadows onto the desktop should be faster as there are
overall fewer pixels to blend, and scaling up the edge buffers only
requires reading a tiny buffer which is then replicated.
Filled/outlined rectangles shown as snapping overlay are now enabled/disabled
independently with `snapping.overlay.[region|edge].bg.enabled` and
`snapping.overlay.[region|edge].border.enabled`.
To keep the default behavior, `*.bg.enabled` is yes and `*.border.enabled` is
no for hardware-based renderers, while `*.bg.enabled` is no and
`*.border.enabled` is yes for software-based (pixman) renderer.
Users can now use a filled rectangle as an overlay even with pixman renderer.
However, this may severely impact performance when used with translucent
`snapping.overlay.[region|edge].bg.color`.
This commit includes a refactor to use substruct `theme_snapping_overlay`
inside `theme` in order to pass it to `create_overlay_rect()` in a cleaner way.
Breaking changes is:
- `snapping.overlay.[region|edge].fill` is now removed.
Replace "preview" in rc.xml and themerc with "overlay" since "preview" sounds
like it shows the window content.
Breaking changes are:
- `snapping.preview.*` in themerc is now replaced with `snapping.overlay`.
- `<snapping><preview>` in rc.xml is now replaced with `<snapping><overlay>`.
Before this patch, labwc would happily kill itself when the user
called the `Kill` action when any xwayland view had focus.
The reason this happened was that wlroots creates the xwayland
wayland client via socketpair() and thus a lookup of the pid
of the socket connection would return the pid of labwc itself.
This patch fixes that by implementing different pid lookup
mechanisms based on the view implementation backend.
Fixes: #1739
Changes in `<desktops><names>` or `<desktop><number="" prefix="">` required
restarting labwc to take effect.
This commit adds `workspaces_reconfigure()` to update `server->workspaces` on
Reconfigure.
There were some missing headers like <stddef.h> for `NULL`, <wayland-util.h>
for `wl_link` and <stdbool.h> for `true`/`false`.
Also this commit fixes that `labwc.h` and `ime.h` included each other.
This allows to ignore X11 client side configure requests
like positioning and resizing and can be used to fight
some X11 applications that persist to have their windows
spawn at specific places and sizes.
Fixes: #1446
Add a BUF_INIT macro, which makes it easier to initialize a struct buf
to an empty string (without a heap allocation).
Add buf_move() to move the contents of one struct buf to another (the
source is reset to BUF_INIT, analogous to C++ move-assignment).
Use buf_reset() instead of directly calling `free(s->buf)` since the
internal buf may not always be allocated by malloc() now.
...to start <command> on startup and to terminate the compositor when
<command> exits.
This is useful for session management as it allows the session client (for
example `lxqt-session`) to terminate labwc - be exiting itself.
Under X, xinit starts the server and keeps it alive for as long as
lxqt-session runs. Thus either the session client starts the Window
Manager, or the Window Manager can be launched independently first. On
Wayland, the Compositor is both Display Server and Window Manager, so the
described session management mechanisms do not work because the Compositor
needs to be running before the session can function.
As some session clients support both X11 and Wayland, this command line
option avoids re-writes and fragmentation.
Co-authored-by: @Consolatis
Add custom field with subset of printf style formatting
to replace the original field formats.
Example:
<windowSwitcher preview="no" outlines="no" allWorkspaces="yes">
<fields>
<field content="custom" format="foobar %b %3s %-10o %-20W %-10i%t" width="100%" />
</fields>
</windowSwitcher>
Mono space font recommended. May need OSD width adjusted
Co-authored-by: @Consolatis (based on work done by them)
When growing or shrinking a view by snapping to an edge, a client may
ignore the requested size and instead keep its original size or
substitute a different (possibly constrained) size. In this case, the
view may not actually contact the snapped edge, and a subsequent snap
attempt will just keep re-trying (and failing) to contact the same ege.
To mitigate this, remember the last-snapped view, snapping direction and
offset of the snapping edge in snap.c; when re-attempting a snap for the
same view in the same direction, ignore the edge that was last "hit", to
allow snapping to progress beyond the problematic edge.
This fixes an issue detected by the static analyzer.
It currently is not a real bug but it could become
one in the future if `add_toggled_icon()` is called
before `add_scene_button()`.
Rather than having `add_toggled_icon()` go through
the list, find the root button and then fetch its
node descriptor just supply the button as argument.
Add ability to set width with percentage of monitor instead of just pixels.
With this the OSD sizes itself properly on both my 4k and 2k monitors.
example: 50% or 75% instead of 600, max 100%
...and unify region overlay and snap-to-edge overlay into overlay.c.
Snap-to-edge overlay is delayed for 500ms to prevent flickering when
the view is dragged from an output to another (demo in discussion labwc#1613).
This also fixes a bug that region overlay is not shown when a modifier
key is re-pressed.
Use the following logic:
- Exclusive: Grant regardless of layer (previously it was only given if
in top or overlay layers) AND grant if in the same or higher layer
(nearer overlay) compared with other clients with exclusive
interactivity.
- On-demand: Grant only if no other layer-shell client has exclusive
keyboard interactivity. Previously it was treated the same as
exclusive.
- None: Unset focus if the commit associated with the 'none' came from
the currently focused layer. Previously it was just unset regardless.
After a roundabout discussion[1] with wlroots devs, it's become apparent
that subpixel text rendering (a.k.a. "ClearType") does not work properly
when rendering over a transparent background, as labwc currently does.
Basically it comes down to the fact that the color of semi-transparent
pixels (which is adjusted redder or bluer to compensate for RGB subpixel
alignment) depends somewhat on background color. When rendering over
transparency, the text engine doesn't know the intended background color
and can't adjust the pixel colors correctly.
With Pango/Cairo, the end result can range from grayscale rendering (no
subpixel rendering at all) to wrong/oversaturated colors (for example,
bright pink pixels when rendering white text on blue background).
This change solves the issue by first filling the text buffer with an
opaque background color before rendering the text over it. Currently,
this is easy since the background is always a solid color. It may be a
little more complex (but doable) if we implement gradients in future.
Note that GTK 4 (and to some degree, recent versions of Microsoft
Windows) avoid this issue by disabling subpixel rendering altogether. I
would much prefer that labwc NOT do this -- it results in noticeably
blurrier text on non-retina LCD screens, which are still common.
[1] https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3822
There is at least one user of the buffer API that reuse a single
buffer by just resetting `buf.len` to `0`. This works as long as
the new user of the buffer actually adds something to the buffer.
However, if we don't add anything but still provide `buf.buf` to
a consumer, the old content will be re-used.
This patch thus adds two new clearing variants to the buffer API:
- `buf_clear()` which doesn't reset the internal allocations
- `buf_reset()` which does free the internal allocations
Additionally, this patch makes `buffer_add_char()` public which
allows adding single characters to an existing buffer. This will
be used in a future PR which implements custom format strings for
the OSD.
1. All '*.env' files in an 'environment.d' directory alongside each
potential 'environment' file will be parsed and added to the
environment.
2. For the purposes of configuration merging, an environment definition
exists at one level if either the 'environment' file is defined or
its corresponding 'environment.d' contains any valid '*.env' file.
3. Variable declarations of the form "VARIABLE=", with no following
value, will be written to the environment as empty strings.
...to give keyboard focus to layer-shell clients if exclusive or on-demand
interactivity is set, so that menu popups can be navigated with the
keyboard. This still only works if the client is in top (or overlay)
layers. Support for bottom and background to be done as a separate patch
set.
Revert 06b19f0 to process layer-shell subsurfaces in
`cursor_button_press()`, but only when their parent layer-shell surface
has keyboard interactivity.
Fix bug in `get_cursor_context()` which resulted in layer-surfaces not
being detected correctly.
Background:
Commit 06b19f0 (issue #1131) disabled processing of layer-shell
subsurfaces in cursor_button_press() because when pressing a task in
Waybar (Gtk panel using layer-shell subsurfaces) the foreign-toplevel
minimize-raise action did not work correctly as the action logic relied on
the recipient window being activated and by clicking on the panel, the
panel itself was both surface-focusd and activated (and thus the window
de-activated).
The un-intended consequence was that by not responding to layer-subsurface
cursor buttons presses, layer-shell clients (such as panels) were not
given keyboard focus if they indeed wanted it by setting exclusive or
on-demand keyboard interactivity.
The good news is that that following @jlindgren90's refactoring (various)
the only place where we call `view_set_actived()` is in
`focus_change_notify()` in `seat.c` and we now only do it for views
(bb8f0bc).
Another side-effect (positive) of 06b19f0 was that a Waybar dnd bug was
fixed (pointer-serial-number validation failure).
Have tested with sfwbar, waybar and tint (test-panel) the following
results:
- Minimize-raise works even when on-demand keyboard interactivity is set
- Keyboard interactivity is given popup-menus (sfwbar and tint) when the
panels are in the top layer (support for bottom will be as a separate
patch set)
- Waybar dnd still works (even when hard-coding keyboard-interactivity)
References:
- bb8f0bc960
- 40ce95a68c/src/seat.c (L481-L483)
- 40ce95a68c/src/dnd.c (L24)
- https://github.com/johanmalm/tintFixes: #1572
This allows configuring a headless fallback output that
is automatically created whenever there is no other output
around. It is destroyed when a new output is discovered.
It can be enabled by setting the environment variable
LABWC_FALLBACK_OUTPUT to the desired output name.
The feature benefits applications like wayvnc the most
as there is always an output available to connect to.
Co-Authored-By: Simon Long <simon@raspberrypi.com>
Move/resize requests from xwayland views and xdg toplevels should be
ignored when the view is not pressed.
This is relevant for touchpad taps with <tapAndDrag> disabled.
When the user taps the client surface (e.g. chromium and mpv) with the
setting above, libinput sends button press & release signals so quickly
that the compositor receives move/resize request from the client AFTER
the button release signal is processed, so `interactive_finish()` is
never called.
This commit moves the virtual output related functions
into their own file at `src/output-virtual.c` with its
own include file to reduce `include/labwc.h` bit by bit.
Additionally, it removes the need to keep the
`server->headless.pending_output_name` char array around
by temporarily disconnecting the handler when creating a
new virtual output. This allows to set the output name
right in the `output_virtual_add()` call rather than to
store the pending name until the new output event handler
has been called.
It also makes adding a virtual fallback output easier in
a follow-up PR.
Also share common config option (rc.window_switcher.criteria) in osd.c and
desktop.c to make sure the window lists are always consistent.
Configure with `<windowSwitcher allWorkspaces="yes|no">`
This is undesired when a focusable popup (e.g. applications menu) of an
unfocusable view (e.g. XWayland panel) is closed.
This reverts commit f6e3527767.
