Clarify and unify rule/monitor rule defaults

Revert "add support for ext-image-copy-capture-v1 and ext-image-capture-source-v1 (wlroots!4545)"
This reverts commit b28674e0ca. This PR is not yet finalized. (Screen freezes).
2026-06-20 22:22:43 +00:00 · 2025-08-17 15:24:30 -05:00 · 2025-08-04 16:27:34 -05:00 · 2025-08-04 23:08:53 +02:00 · 2025-06-18 23:41:14 -05:00 · 2025-06-18 14:52:15 +02:00
20 changed files with 3231 additions and 1445 deletions
@@ -0,0 +1,62 @@
+name: Bug Report
+about: Something in dwl isn't working correctly
+title:
+labels:
+    - 'Kind/Bug'
+body:
+    - type: markdown
+      attributes:
+          value: |
+              - Only report bugs that can be reproduced on the main (or wlroots-next) branch without patches.
+              - Proprietary graphics drivers, including nvidia, are not supported. Please use the open source equivalents, such as nouveau, if you would like to use dwl.
+              - Report patch issues to their respective authors.
+
+    - type: input
+      id: dwl_version
+      attributes:
+          label: 'dwl version:'
+          placeholder: '`dwl -v`'
+      validations:
+          required: true
+
+    - type: input
+      id: wlroots_version
+      attributes:
+          label: 'wlroots version:'
+      validations:
+          required: true
+
+    - type: input
+      id: distro
+      attributes:
+          label: What distro (and version) are you using?
+      validations:
+          required: false
+
+    - type: textarea
+      attributes:
+          label: Description
+          value: |
+              The steps you took to reproduce the problem.
+      validations:
+          required: false
+
+    - type: textarea
+      id: debug_log
+      attributes:
+          label: Debug Log
+          value: |
+              Run `dwl -d 2> ~/dwl.log` from a TTY and attach the **full** (do not truncate it) file here, or upload it to a pastebin.
+              Please try to keep the reproduction as brief as possible and exit dwl.
+      validations:
+          required: false
+
+    - type: textarea
+      id: backtrace
+      attributes:
+          label: Stack Trace
+          value: |
+              - Only required if dwl crashes.
+              - If the lines mentioning dwl or wlroots have `??`. Please compile both dwl and wlroots from source (enabling debug symbols) and try to reproduce.
+      validations:
+          required: false
@@ -0,0 +1,9 @@
+name: Enhancement idea
+about: Suggest a feature or improvement
+title:
+labels:
+    - 'Kind/Feature'
+body:
+    - type: textarea
+      attributes:
+          label: Description
@@ -1,10 +0,0 @@
---
-name: Bug report
-about: Something in dwl isn't working correctly
-title: ''
-labels: 'A: bug'
-assignees: ''
-
---
-
-
@@ -1,10 +0,0 @@
---
-name: Enhancement idea
-about: Suggest a feature or improvement
-title: ''
-labels: 'A: enhancement'
-assignees: ''
-
---
-
-
@@ -0,0 +1,3 @@
+Lennart Jablonka <humm@ljabl.com> <hummsmith42@gmail.com>
+Leonardo Hernández Hernández <leohdz172@proton.me> <leohdz172@outlook.com>
+Leonardo Hernández Hernández <leohdz172@proton.me> <leohdz172@protonmail.com>
@@ -0,0 +1,217 @@
+# Changelog
+
+* [Unreleased](#unreleased)
+* [0.7](#0.7)
+* [0.6](#0.6)
+* [0.5](#0.5)
+
+
+## Unreleased
+### Added
+
+* Support for the linux-drm-syncobj-v1 protocol ([wlroots!4715][wlroots!4715], [#685][685])
+* Allow the use of non-system wlroots library ([#646][646])
+
+[wlroots!4715]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4715
+[685]: https://codeberg.org/dwl/dwl/pulls/685
+[646]: https://codeberg.org/dwl/dwl/pulls/646
+
+
+### Changed
+### Deprecated
+### Removed
+### Fixed
+
+* Crash when a client is created while all outputs are disabled.
+
+### Security
+### Contributors
+
+
+## 0.7
+
+This version is just 0.6 with wlroots 0.18 compatibility.
+
+### Added
+
+* Add support for the alpha-modifier-v1 protocol ([wlroots!4616][wlroots!4616]).
+* dwl now will survive GPU resets ([#601][601]).
+
+[wlroots!4616]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4616
+[601]: https://codeberg.org/dwl/dwl/issues/601
+
+
+### Contributors
+
+Guido Cella
+
+
+## 0.6
+
+### Added
+
+* Add `rootcolor` to change the default background color ([#544][544]).
+* Implement the wlr-virtual-pointer-unstable-v1 protocol ([#574][574]).
+* Implement the pointer-constraints and relative-pointer protocols ([#317][317])
+* Implement the wlr-output-power-management protocol ([#599][599])
+
+[544]: https://codeberg.org/dwl/dwl/pulls/544
+[574]: https://codeberg.org/dwl/dwl/pulls/574
+[317]: https://codeberg.org/dwl/dwl/issues/317
+[599]: https://codeberg.org/dwl/dwl/issues/559
+
+
+### Changed
+
+* Keyboards are now managed through keyboard groups ([#549][549]).
+* Only the first matched keybinding is executed.
+* Allow toggling the layout before selecting a different one ([#570][570]).
+* Fullscreen clients are now rendered above wlr_layer_surfaces in the top layer
+  ([#609][609]).
+* The default menu was changed from `bemenu-run` to `wmenu-run` ([#553][553]).
+* The option `sloppyfocus` now replicates the dwm behavior ([#599][599]).
+* Allow configure position of monitors with negative values. (-1, -1) is
+  used to auto-configure them ([#635][635]).
+* dwl now kills the entire process group of `startup_cmd`
+* The O_NONBLOCK flag is set for stdout.
+
+[549]: https://codeberg.org/dwl/dwl/pulls/549
+[570]: https://codeberg.org/dwl/dwl/pulls/570
+[609]: https://codeberg.org/dwl/dwl/pulls/609
+[553]: https://codeberg.org/dwl/dwl/issues/553
+[599]: https://codeberg.org/dwl/dwl/pulls/599
+[635]: https://codeberg.org/dwl/dwl/pulls/635
+
+
+### Removed
+
+* The SLOC limit is now removed ([#497][497]).
+
+[497]: https://codeberg.org/dwl/dwl/pulls/497
+
+
+### Fixed
+
+* Clients not having the correct border color when mapping.
+* Compliance with the xdg-decoration-unstable-v1 ([#546][546]).
+* dwl no longer sends negative values in xdg_toplevel.configure events.
+* Crashes with disabled monitors ([#472][472]).
+
+[546]: https://codeberg.org/dwl/dwl/pulls/546
+[472]: https://codeberg.org/dwl/dwl/issues/472
+
+
+### Contributors
+
+Ben Jargowsky
+Benjamin Chausse
+David Donahue
+Devin J. Pohly
+Dima Krasner
+Emil Miler
+Forrest Bushstone
+Guido Cella
+Peter Hofmann
+Rutherther
+Squibid
+choc
+fictitiousexistence
+korei999
+sewn
+thanatos
+
+
+## 0.5
+
+### Added
+
+* Allow configure x and y position of outputs ([#301][301])
+* Implement repeatable keybindings ([#368][368])
+* Print app id in printstatus() output ([#381][381])
+* Display client count in monocle symbol ([#387][387])
+* Export XCURSOR_SIZE to fix apps using an older version of Qt ([#425][425])
+* Support for wp-fractional-scale-v1 (through wlr_scene: [wlroots!3511][wlroots!3511])
+* dwl now sends `wl_surface.preferred_buffer_scale` (through wlr_scene: [wlroots!4269][wlroots!4269])
+* Add support for xdg-shell v6 ([#465][465])
+* Add support for wp-cursor-shape-v1 ([#444][444])
+* Add desktop file ([#484][484])
+* Add macro to easily configure colors ([#466][466])
+* Color of urgent clients are now red ([#494][494])
+* New flag `-d` and option `log_level` to change the wlroots debug level
+* Add CHANGELOG.md ([#501][501])
+
+[301]: https://github.com/djpohly/dwl/pull/301
+[368]: https://github.com/djpohly/dwl/pull/368
+[381]: https://github.com/djpohly/dwl/pull/381
+[387]: https://github.com/djpohly/dwl/issues/387
+[425]: https://github.com/djpohly/dwl/pull/425
+[wlroots!4269]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4269
+[wlroots!3511]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3511
+[465]: https://github.com/djpohly/dwl/pull/465
+[444]: https://github.com/djpohly/dwl/pull/444
+[484]: https://github.com/djpohly/dwl/pull/484
+[466]: https://github.com/djpohly/dwl/issues/466
+[494]: https://github.com/djpohly/dwl/pull/494
+[501]: https://github.com/djpohly/dwl/pull/501
+
+
+### Changed
+
+* Replace `tags` with `TAGCOUNT` in config.def.h ([#403][403])
+* Pop ups are now destroyed when focusing another client ([#408][408])
+* dwl does not longer respect size hints, instead clip windows if they are
+  larger than they should be ([#455][455])
+* The version of wlr-layer-shell-unstable-v1 was lowered to 3 (from 4)
+* Use the same border color as dwm ([#494][494])
+
+[403]: https://github.com/djpohly/dwl/pull/403
+[408]: https://github.com/djpohly/dwl/pull/409
+[455]: https://github.com/djpohly/dwl/pull/455
+[494]: https://github.com/djpohly/dwl/pull/494
+
+
+### Removed
+
+* Remove unused `rootcolor` option ([#401][401])
+* Remove support for wlr-input-inhibitor-unstable-v1 ([#430][430])
+* Remove support for KDE idle protocol ([#431][431])
+
+[401]: https://github.com/djpohly/dwl/pull/401
+[430]: https://github.com/djpohly/dwl/pull/430
+[431]: https://github.com/djpohly/dwl/pull/431
+
+
+### Fixed
+
+* Fix crash when creating a layer surface with all outputs disabled
+  ([#421][421])
+* Fix other clients being shown as focused if the focused client have pop ups
+  open ([#408][408])
+* Resize fullscreen clients when updating monitor mode
+* dwl no longer crash at exit like sometimes did
+* Fullscreen background appearing above clients ([#487][487])
+* Fix a segfault when user provides invalid xkb_rules ([#518][518])
+
+[421]: https://github.com/djpohly/dwl/pull/421
+[408]: https://github.com/djpohly/dwl/issues/408
+[487]: https://github.com/djpohly/dwl/issues/487
+[518]: https://github.com/djpohly/dwl/pull/518
+
+
+### Contributors
+
+* A Frederick Christensen
+* Angelo Antony
+* Ben Collerson
+* Devin J. Pohly
+* Forrest Bushstone
+* gan-of-culture
+* godalming123
+* Job79
+* link2xt
+* Micah Gorrell
+* Nikita Ivanov
+* Palanix
+* pino-desktop
+* Weiseguy
+* Yves Zoundi
@@ -2,7 +2,7 @@ dwl - dwm for Wayland

 Copyright © 2020 dwl team

-See also the files LICENSE.tinywl and LICENSE.dwm.
+See also the files LICENSE.tinywl, LICENSE.dwm and LICENSE.sway.

 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -0,0 +1,19 @@
+Copyright (c) 2016-2017 Drew DeVault
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
@@ -1,61 +1,79 @@
+.POSIX:
+.SUFFIXES:
+
 include config.mk

-CFLAGS += -I. -DWLR_USE_UNSTABLE -std=c99
+# flags for compiling
+DWLCPPFLAGS = -I. -DWLR_USE_UNSTABLE -D_POSIX_C_SOURCE=200809L \
+	-DVERSION=\"$(VERSION)\" $(XWAYLAND)
+DWLDEVCFLAGS = -g -Wpedantic -Wall -Wextra -Wdeclaration-after-statement \
+	-Wno-unused-parameter -Wshadow -Wunused-macros -Werror=strict-prototypes \
+	-Werror=implicit -Werror=return-type -Werror=incompatible-pointer-types \
+	-Wfloat-conversion

-WAYLAND_PROTOCOLS=$(shell pkg-config --variable=pkgdatadir wayland-protocols)
-WAYLAND_SCANNER=$(shell pkg-config --variable=wayland_scanner wayland-scanner)
-
-PKGS = wlroots wayland-server xcb xkbcommon libinput
-CFLAGS += $(foreach p,$(PKGS),$(shell pkg-config --cflags $(p)))
-LDLIBS += $(foreach p,$(PKGS),$(shell pkg-config --libs $(p)))
+# CFLAGS / LDFLAGS
+PKGS      = wayland-server xkbcommon libinput $(XLIBS)
+DWLCFLAGS = `$(PKG_CONFIG) --cflags $(PKGS)` $(WLR_INCS) $(DWLCPPFLAGS) $(DWLDEVCFLAGS) $(CFLAGS)
+LDLIBS    = `$(PKG_CONFIG) --libs $(PKGS)` $(WLR_LIBS) -lm $(LIBS)

 all: dwl
+dwl: dwl.o util.o
+	$(CC) dwl.o util.o $(DWLCFLAGS) $(LDFLAGS) $(LDLIBS) -o $@
+dwl.o: dwl.c client.h config.h config.mk cursor-shape-v1-protocol.h \
+	pointer-constraints-unstable-v1-protocol.h wlr-layer-shell-unstable-v1-protocol.h \
+	wlr-output-power-management-unstable-v1-protocol.h xdg-shell-protocol.h
+util.o: util.c util.h

 # wayland-scanner is a tool which generates C headers and rigging for Wayland
 # protocols, which are specified in XML. wlroots requires you to rig these up
 # to your build system yourself and provide them in the include path.
+WAYLAND_SCANNER   = `$(PKG_CONFIG) --variable=wayland_scanner wayland-scanner`
+WAYLAND_PROTOCOLS = `$(PKG_CONFIG) --variable=pkgdatadir wayland-protocols`
+
+cursor-shape-v1-protocol.h:
+	$(WAYLAND_SCANNER) enum-header \
+		$(WAYLAND_PROTOCOLS)/staging/cursor-shape/cursor-shape-v1.xml $@
+pointer-constraints-unstable-v1-protocol.h:
+	$(WAYLAND_SCANNER) enum-header \
+		$(WAYLAND_PROTOCOLS)/unstable/pointer-constraints/pointer-constraints-unstable-v1.xml $@
+wlr-layer-shell-unstable-v1-protocol.h:
+	$(WAYLAND_SCANNER) enum-header \
+		protocols/wlr-layer-shell-unstable-v1.xml $@
+wlr-output-power-management-unstable-v1-protocol.h:
+	$(WAYLAND_SCANNER) server-header \
+		protocols/wlr-output-power-management-unstable-v1.xml $@
 xdg-shell-protocol.h:
 	$(WAYLAND_SCANNER) server-header \
 		$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@

-xdg-shell-protocol.c:
-	$(WAYLAND_SCANNER) private-code \
-		$(WAYLAND_PROTOCOLS)/stable/xdg-shell/xdg-shell.xml $@
-
-xdg-shell-protocol.o: xdg-shell-protocol.h
-
-wlr-layer-shell-unstable-v1-protocol.h:
-	$(WAYLAND_SCANNER) server-header \
-		protocols/wlr-layer-shell-unstable-v1.xml $@
-
-wlr-layer-shell-unstable-v1-protocol.c:
-	$(WAYLAND_SCANNER) private-code \
-		protocols/wlr-layer-shell-unstable-v1.xml $@
-
-wlr-layer-shell-unstable-v1-protocol.o: wlr-layer-shell-unstable-v1-protocol.h
-
-idle-protocol.h:
-	$(WAYLAND_SCANNER) server-header \
-		protocols/idle.xml $@
-
-idle-protocol.c:
-	$(WAYLAND_SCANNER) private-code \
-		protocols/idle.xml $@
-
-idle-protocol.o: idle-protocol.h
-
-config.h: | config.def.h
+config.h:
 	cp config.def.h $@
-
-dwl.o: config.h client.h xdg-shell-protocol.h wlr-layer-shell-unstable-v1-protocol.h idle-protocol.h
-
-dwl: xdg-shell-protocol.o wlr-layer-shell-unstable-v1-protocol.o idle-protocol.o
-
 clean:
-	rm -f dwl *.o *-protocol.h *-protocol.c
+	rm -f dwl *.o *-protocol.h
+
+dist: clean
+	mkdir -p dwl-$(VERSION)
+	cp -R LICENSE* Makefile CHANGELOG.md README.md client.h config.def.h \
+		config.mk protocols dwl.1 dwl.c util.c util.h dwl.desktop \
+		dwl-$(VERSION)
+	tar -caf dwl-$(VERSION).tar.gz dwl-$(VERSION)
+	rm -rf dwl-$(VERSION)

 install: dwl
-	install -D dwl $(PREFIX)/bin/dwl
+	mkdir -p $(DESTDIR)$(PREFIX)/bin
+	rm -f $(DESTDIR)$(PREFIX)/bin/dwl
+	cp -f dwl $(DESTDIR)$(PREFIX)/bin
+	chmod 755 $(DESTDIR)$(PREFIX)/bin/dwl
+	mkdir -p $(DESTDIR)$(MANDIR)/man1
+	cp -f dwl.1 $(DESTDIR)$(MANDIR)/man1
+	chmod 644 $(DESTDIR)$(MANDIR)/man1/dwl.1
+	mkdir -p $(DESTDIR)$(DATADIR)/wayland-sessions
+	cp -f dwl.desktop $(DESTDIR)$(DATADIR)/wayland-sessions/dwl.desktop
+	chmod 644 $(DESTDIR)$(DATADIR)/wayland-sessions/dwl.desktop
+uninstall:
+	rm -f $(DESTDIR)$(PREFIX)/bin/dwl $(DESTDIR)$(MANDIR)/man1/dwl.1 \
+		$(DESTDIR)$(DATADIR)/wayland-sessions/dwl.desktop

-.DEFAULT_GOAL=dwl
-.PHONY: clean
+.SUFFIXES: .c .o
+.c.o:
+	$(CC) $(CPPFLAGS) $(DWLCFLAGS) -o $@ -c $<
@@ -1,77 +1,201 @@
 # dwl - dwm for Wayland

-Join us on our [Discord server](https://discord.gg/jJxZnrGPWN)!
+Join us on our IRC channel: [#dwl on Libera Chat]  
+Or on the community-maintained [Discord server].

-dwl is a compact, hackable compositor for Wayland based on [wlroots](https://github.com/swaywm/wlroots). It is intended to fill the same space in the Wayland world that dwm does in X11, primarily in terms of philosophy, and secondarily in terms of functionality. Like dwm, dwl is:
+dwl is a compact, hackable compositor for [Wayland] based on [wlroots]. It is
+intended to fill the same space in the Wayland world that dwm does in X11,
+primarily in terms of functionality, and secondarily in terms of
+philosophy. Like dwm, dwl is:

 - Easy to understand, hack on, and extend with patches
 - One C source file (or a very small number) configurable via `config.h`
- Limited to 2000 SLOC to promote hackability
 - Tied to as few external dependencies as possible

-dwl is not meant to provide every feature under the sun. Instead, like dwm, it sticks to features which are necessary, simple, and straightforward to implement given the base on which it is built. Implemented default features are:
+## Getting Started:

- Any features provided by dwm/Xlib: simple window borders, tags, keybindings, client rules, mouse move/resize. Providing a built-in status bar is an exception to this goal, to avoid dependencies on font rendering and/or drawing libraries when an external bar could work well.
+### Latest semi-stable [release]
+This is probably where you want to start. This builds against the [wlroots]
+versions currently shipping in major distributions. If your
+distribution's `wlroots` version is older, use an earlier dwl [release].
+The `wlroots` version against which a given `dwl` release builds is specified
+with each release on the [release] page
+
+### Development branch [main]
+Active development progresses on the `main` branch. The `main` branch is built
+against a late (and often changing) git commit of wlroots. While the adventurous
+are welcome to use `main`, it is a rocky road. Using `main` requires that the
+user be willing to chase git commits of wlroots. Testing development pull
+requests may involve merging unmerged pull requests in [wlroots]' git repository
+and/or git commits of wayland.
+  
+### Building dwl
+dwl has the following dependencies:
+- libinput
+- wayland
+- wlroots (compiled with the libinput backend)
+- xkbcommon
+- wayland-protocols (compile-time only)
+- pkg-config (compile-time only)
+
+dwl has the following additional dependencies if XWayland support is enabled:
+- libxcb
+- libxcb-wm
+- wlroots (compiled with X11 support)
+- Xwayland (runtime only)
+
+Install these (and their `-devel` versions if your distro has separate
+development packages) and run `make`. If you wish to build against a released
+version of wlroots (*you probably do*), use a [release] or a [0.x branch]. If
+you want to use the unstable development `main` branch, you need to use the git
+version of [wlroots].
+
+To enable XWayland, you should uncomment its flags in `config.mk`.
+
+## Configuration
+
+All configuration is done by editing `config.h` and recompiling, in the same
+manner as dwm. There is no way to separately restart the window manager in
+Wayland without restarting the entire display server, so any changes will take
+effect the next time dwl is executed.
+
+As in the dwm community, we encourage users to share patches they have
+created. Check out the [dwl-patches] repository!
+
+## Running dwl
+
+dwl can be run on any of the backends supported by wlroots. This means you can
+run it as a separate window inside either an X11 or Wayland session, as well as
+directly from a VT console. Depending on your distro's setup, you may need to
+add your user to the `video` and `input` groups before you can run dwl on a
+VT. If you are using `elogind` or `systemd-logind` you need to install polkit;
+otherwise you need to add yourself in the `seat` group and enable/start the
+seatd daemon.
+
+When dwl is run with no arguments, it will launch the server and begin handling
+any shortcuts configured in `config.h`. There is no status bar or other
+decoration initially; these are instead clients that can be run within the
+Wayland session. Do note that the default background color is grey. This can be
+modified in `config.h`.
+
+If you would like to run a script or command automatically at startup, you can
+specify the command using the `-s` option. This command will be executed as a
+shell command using `/bin/sh -c`.  It serves a similar function to `.xinitrc`,
+but differs in that the display server will not shut down when this process
+terminates. Instead, dwl will send this process a SIGTERM at shutdown and wait
+for it to terminate (if it hasn't already). This makes it ideal for execing into
+a user service manager like [s6], [anopa], [runit], [dinit], or [`systemd
+--user`].
+
+Note: The `-s` command is run as a *child process* of dwl, which means that it
+does not have the ability to affect the environment of dwl or of any processes
+that it spawns. If you need to set environment variables that affect the entire
+dwl session, these must be set prior to running dwl. For example, Wayland
+requires a valid `XDG_RUNTIME_DIR`, which is usually set up by a session manager
+such as `elogind` or `systemd-logind`.  If your system doesn't do this
+automatically, you will need to configure it prior to launching `dwl`, e.g.:
+
+    export XDG_RUNTIME_DIR=/tmp/xdg-runtime-$(id -u)
+    mkdir -p $XDG_RUNTIME_DIR
+    dwl
+
+### Status information
+
+Information about selected layouts, current window title, app-id, and
+selected/occupied/urgent tags is written to the stdin of the `-s` command (see
+the `STATUS INFORMATION` section in `_dwl_(1)`).  This information can be used to
+populate an external status bar with a script that parses the
+information. Failing to read this information will cause dwl to block, so if you
+do want to run a startup command that does not consume the status information,
+you can close standard input with the `<&-` shell redirection, for example:
+
+    dwl -s 'foot --server <&-'
+
+If your startup command is a shell script, you can achieve the same inside the
+script with the line
+
+    exec <&-
+
+To get a list of status bars that work with dwl consult our [wiki].
+
+## Replacements for X applications
+
+You can find a [list of useful resources on our wiki].
+
+## Background
+
+dwl is not meant to provide every feature under the sun. Instead, like dwm, it
+sticks to features which are necessary, simple, and straightforward to implement
+given the base on which it is built. Implemented default features are:
+
+- Any features provided by dwm/Xlib: simple window borders, tags, keybindings,
+  client rules, mouse move/resize. Providing a built-in status bar is an
+  exception to this goal, to avoid dependencies on font rendering and/or drawing
+  libraries when an external bar could work well.
 - Configurable multi-monitor layout support, including position and rotation
 - Configurable HiDPI/multi-DPI support
+- Idle-inhibit protocol which lets applications such as mpv disable idle
+  monitoring
+- Provide information to external status bars via stdout/stdin
+- Urgency hints via xdg-activate protocol
+- Support screen lockers via ext-session-lock-v1 protocol
 - Various Wayland protocols
- XWayland support as provided by wlroots
+- XWayland support as provided by wlroots (can be enabled in `config.mk`)
 - Zero flickering - Wayland users naturally expect that "every frame is perfect"
+- Layer shell popups (used by Waybar)
+- Damage tracking provided by scenegraph API
+
+Given the Wayland architecture, dwl has to implement features from dwm **and**
+the xorg-server. Because of this, it is impossible to maintain the original
+project goal of 2000 SLOC and have a reasonably complete compositor with
+features comparable to dwm. However, this does not mean that the code will grow
+indiscriminately. We will try to keep the code as small as possible.

 Features under consideration (possibly as patches) are:

 - Protocols made trivial by wlroots
- Provide information to external status bars via stdout or another file descriptor
- Implement the input-inhibitor protocol to support screen lockers
- Implement the idle-inhibit protocol which lets applications such as mpv disable idle monitoring
- Layer shell popups (used by Waybar)
- Basic yes/no damage tracking to avoid needless redraws
- More in-depth damage region tracking ([which may improve power usage](https://mozillagfx.wordpress.com/2019/10/22/dramatically-reduced-power-usage-in-firefox-70-on-macos-with-core-animation/))
- Implement the text-input and input-method protocols to support IME once ibus implements input-method v2 (see https://github.com/ibus/ibus/pull/2256 and https://github.com/djpohly/dwl/pull/12)
- Implement urgent/attention/focus-request once it's part of the xdg-shell protocol (https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/9)
+- Implement the text-input and input-method protocols to support IME once ibus
+  implements input-method v2 (see https://github.com/ibus/ibus/pull/2256 and
+  https://codeberg.org/dwl/dwl/pulls/235)

-Feature *non-goals* include:
+Feature *non-goals* for the main codebase include:

 - Client-side decoration (any more than is necessary to tell the clients not to)
- Client-initiated window management, such as move, resize, and close, which can be done through the compositor
-
-## Building dwl
-
-dwl has only two dependencies: wlroots 0.13 and wayland-protocols. Simply install these and run `make`.  If you wish to build against a Git version of wlroots, check out the [wlroots-next branch](https://github.com/djpohly/dwl/tree/wlroots-next).
-
-To enable XWayland, you should also install xorg-xwayland and uncomment its flag in `config.mk`.
-
-## Configuration
-
-All configuration is done by editing `config.h` and recompiling, in the same manner as dwm. There is no way to separately restart the window manager in Wayland without restarting the entire display server, so any changes will take effect the next time dwl is executed.
-
-As in the dwm community, we encourage users to share patches they have created.  Check out the [patches page on our wiki](https://github.com/djpohly/dwl/wiki/Patches)!
-
-## Running dwl
-
-dwl can be run as-is, with no arguments. In an existing Wayland or X11 session, this will open a window to act as a virtual display. When run from a TTY, the Wayland server will take over the entire virtual terminal. Clients started by dwl will have `WAYLAND_DISPLAY` set in their environment, and other clients can be started from outside the session by setting this variable accordingly.
-
-You can also specify a startup program using the `-s` option. The argument to this option will be run at startup as a shell command (using `sh -c`) and can serve a similar function to `.xinitrc`: starting a service manager or other startup applications. Unlike `.xinitrc`, the display server will not shut down when this process terminates. Instead, as dwl is shutting down, it will send this process a SIGTERM and wait for it to terminate (if it hasn't already). This makes it ideal not only for initialization but also for execing into a user-level service manager like s6 or `systemd --user`.
-
-Note: Wayland requires a valid `XDG_RUNTIME_DIR`, which is usually set up by a session manager such as `elogind` or `systemd-logind`.  If your system doesn't do this automatically, you will need to configure it prior to launching `dwl`, e.g.:
-
-    export XDG_RUNTIME_DIR=/tmp/xdg-runtime-$(id -u)
-    mkdir -p $XDG_RUNTIME_DIR
-
-## Replacements for X applications
-
-You can find a [list of Wayland applications on the sway wiki](https://github.com/swaywm/sway/wiki/i3-Migration-Guide).
-
-## IRC channel
-
-dwl's IRC channel is #dwl on irc.freenode.net.
+- Client-initiated window management, such as move, resize, and close, which can
+  be done through the compositor
+- Animations and visual effects

 ## Acknowledgements

-dwl began by extending the TinyWL example provided (CC0) by the sway/wlroots developers. This was made possible in many cases by looking at how sway accomplished something, then trying to do the same in as suckless a way as possible.
+dwl began by extending the TinyWL example provided (CC0) by the sway/wlroots
+developers. This was made possible in many cases by looking at how sway
+accomplished something, then trying to do the same in as suckless a way as
+possible.

-Many thanks to suckless.org and the dwm developers and community for the inspiration, and to the various contributors to the project, including:
+Many thanks to suckless.org and the dwm developers and community for the
+inspiration, and to the various contributors to the project, including:

+- **Devin J. Pohly for creating and nurturing the fledgling project**
 - Alexander Courtis for the XWayland implementation
- Guido Cella for the layer-shell protocol implementation, patch maintenance, and for helping to keep the project running
+- Guido Cella for the layer-shell protocol implementation, patch maintenance,
+  and for helping to keep the project running
 - Stivvo for output management and fullscreen support, and patch maintenance
+
+
+[wlroots]: https://gitlab.freedesktop.org/wlroots
+[`systemd --user`]: https://wiki.archlinux.org/title/Systemd/User
+[#dwl on Libera Chat]: https://web.libera.chat/?channels=#dwl
+[0.7-rc1]: https://codeberg.org/dwl/dwl/releases/tag/v0.7-rc1
+[0.x branch]: https://codeberg.org/dwl/dwl/branches
+[anopa]: https://jjacky.com/anopa/
+[dinit]: https://davmac.org/projects/dinit/
+[dwl-patches]: https://codeberg.org/dwl/dwl-patches
+[list of useful resources on our wiki]: https://codeberg.org/dwl/dwl/wiki/Home#migrating-from-x
+[main]: https://codeberg.org/dwl/dwl/src/branch/main
+[release]: https://codeberg.org/dwl/dwl/releases
+[runit]: http://smarden.org/runit/faq.html#userservices
+[s6]: https://skarnet.org/software/s6/
+[wlroots]: https://gitlab.freedesktop.org/wlroots/wlroots/
+[wiki]: https://codeberg.org/dwl/dwl/wiki/Home#compatible-status-bars
+[Discord server]: https://discord.gg/jJxZnrGPWN
+[Wayland]: https://wayland.freedesktop.org/
@@ -5,44 +5,120 @@
 * that they will simply compile out if the chosen #defines leave them unused.
 */

-/* Leave this function first; it's used in the others */
+/* Leave these functions first; they're used in the others */
 static inline int
 client_is_x11(Client *c)
 {
 #ifdef XWAYLAND
-	return c->type == X11Managed || c->type == X11Unmanaged;
-#else
-	return 0;
+	return c->type == X11;
 #endif
+	return 0;
+}
+
+static inline struct wlr_surface *
+client_surface(Client *c)
+{
+#ifdef XWAYLAND
+	if (client_is_x11(c))
+		return c->surface.xwayland->surface;
+#endif
+	return c->surface.xdg->surface;
+}
+
+static inline int
+toplevel_from_wlr_surface(struct wlr_surface *s, Client **pc, LayerSurface **pl)
+{
+	struct wlr_xdg_surface *xdg_surface, *tmp_xdg_surface;
+	struct wlr_surface *root_surface;
+	struct wlr_layer_surface_v1 *layer_surface;
+	Client *c = NULL;
+	LayerSurface *l = NULL;
+	int type = -1;
+#ifdef XWAYLAND
+	struct wlr_xwayland_surface *xsurface;
+#endif
+
+	if (!s)
+		return -1;
+	root_surface = wlr_surface_get_root_surface(s);
+
+#ifdef XWAYLAND
+	if ((xsurface = wlr_xwayland_surface_try_from_wlr_surface(root_surface))) {
+		c = xsurface->data;
+		type = c->type;
+		goto end;
+	}
+#endif
+
+	if ((layer_surface = wlr_layer_surface_v1_try_from_wlr_surface(root_surface))) {
+		l = layer_surface->data;
+		type = LayerShell;
+		goto end;
+	}
+
+	xdg_surface = wlr_xdg_surface_try_from_wlr_surface(root_surface);
+	while (xdg_surface) {
+		tmp_xdg_surface = NULL;
+		switch (xdg_surface->role) {
+		case WLR_XDG_SURFACE_ROLE_POPUP:
+			if (!xdg_surface->popup || !xdg_surface->popup->parent)
+				return -1;
+
+			tmp_xdg_surface = wlr_xdg_surface_try_from_wlr_surface(xdg_surface->popup->parent);
+
+			if (!tmp_xdg_surface)
+				return toplevel_from_wlr_surface(xdg_surface->popup->parent, pc, pl);
+
+			xdg_surface = tmp_xdg_surface;
+			break;
+		case WLR_XDG_SURFACE_ROLE_TOPLEVEL:
+			c = xdg_surface->data;
+			type = c->type;
+			goto end;
+		case WLR_XDG_SURFACE_ROLE_NONE:
+			return -1;
+		}
+	}
+
+end:
+	if (pl)
+		*pl = l;
+	if (pc)
+		*pc = c;
+	return type;
 }

 /* The others */
 static inline void
 client_activate_surface(struct wlr_surface *s, int activated)
 {
+	struct wlr_xdg_toplevel *toplevel;
 #ifdef XWAYLAND
-	if (wlr_surface_is_xwayland_surface(s)) {
-		wlr_xwayland_surface_activate(
-				wlr_xwayland_surface_from_wlr_surface(s), activated);
+	struct wlr_xwayland_surface *xsurface;
+	if ((xsurface = wlr_xwayland_surface_try_from_wlr_surface(s))) {
+		wlr_xwayland_surface_activate(xsurface, activated);
 		return;
 	}
 #endif
-	if (wlr_surface_is_xdg_surface(s))
-		wlr_xdg_toplevel_set_activated(
-				wlr_xdg_surface_from_wlr_surface(s), activated);
+	if ((toplevel = wlr_xdg_toplevel_try_from_wlr_surface(s)))
+		wlr_xdg_toplevel_set_activated(toplevel, activated);
 }

-static inline void
-client_for_each_surface(Client *c, wlr_surface_iterator_func_t fn, void *data)
+static inline uint32_t
+client_set_bounds(Client *c, int32_t width, int32_t height)
 {
 #ifdef XWAYLAND
-	if (client_is_x11(c)) {
-		wlr_surface_for_each_surface(c->surface.xwayland->surface,
-				fn, data);
-		return;
-	}
+	if (client_is_x11(c))
+		return 0;
 #endif
-	wlr_xdg_surface_for_each_surface(c->surface.xdg, fn, data);
+	if (wl_resource_get_version(c->surface.xdg->toplevel->resource) >=
+			XDG_TOPLEVEL_CONFIGURE_BOUNDS_SINCE_VERSION && width >= 0 && height >= 0
+			&& (c->bounds.width != width || c->bounds.height != height)) {
+		c->bounds.width = width;
+		c->bounds.height = height;
+		return wlr_xdg_toplevel_set_bounds(c->surface.xdg->toplevel, width, height);
+	}
+	return 0;
 }

 static inline const char *
@@ -50,9 +126,28 @@ client_get_appid(Client *c)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return c->surface.xwayland->class;
+		return c->surface.xwayland->class ? c->surface.xwayland->class : "broken";
 #endif
-	return c->surface.xdg->toplevel->app_id;
+	return c->surface.xdg->toplevel->app_id ? c->surface.xdg->toplevel->app_id : "broken";
+}
+
+static inline void
+client_get_clip(Client *c, struct wlr_box *clip)
+{
+	*clip = (struct wlr_box){
+		.x = 0,
+		.y = 0,
+		.width = c->geom.width - c->bw,
+		.height = c->geom.height - c->bw,
+	};
+
+#ifdef XWAYLAND
+	if (client_is_x11(c))
+		return;
+#endif
+
+	clip->x = c->surface.xdg->geometry.x;
+	clip->y = c->surface.xdg->geometry.y;
 }

 static inline void
@@ -67,7 +162,35 @@ client_get_geometry(Client *c, struct wlr_box *geom)
 		return;
 	}
 #endif
-	wlr_xdg_surface_get_geometry(c->surface.xdg, geom);
+	*geom = c->surface.xdg->geometry;
+}
+
+static inline Client *
+client_get_parent(Client *c)
+{
+	Client *p = NULL;
+#ifdef XWAYLAND
+	if (client_is_x11(c)) {
+		if (c->surface.xwayland->parent)
+			toplevel_from_wlr_surface(c->surface.xwayland->parent->surface, &p, NULL);
+		return p;
+	}
+#endif
+	if (c->surface.xdg->toplevel->parent)
+		toplevel_from_wlr_surface(c->surface.xdg->toplevel->parent->base->surface, &p, NULL);
+	return p;
+}
+
+static inline int
+client_has_children(Client *c)
+{
+#ifdef XWAYLAND
+	if (client_is_x11(c))
+		return !wl_list_empty(&c->surface.xwayland->children);
+#endif
+	/* surface.xdg->link is never empty because it always contains at least the
+	 * surface itself. */
+	return wl_list_length(&c->surface.xdg->link) > 1;
 }

 static inline const char *
@@ -75,23 +198,83 @@ client_get_title(Client *c)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return c->surface.xwayland->title;
+		return c->surface.xwayland->title ? c->surface.xwayland->title : "broken";
 #endif
-	return c->surface.xdg->toplevel->title;
+	return c->surface.xdg->toplevel->title ? c->surface.xdg->toplevel->title : "broken";
 }

 static inline int
 client_is_float_type(Client *c)
 {
+	struct wlr_xdg_toplevel *toplevel;
+	struct wlr_xdg_toplevel_state state;
+
+#ifdef XWAYLAND
+	if (client_is_x11(c)) {
+		struct wlr_xwayland_surface *surface = c->surface.xwayland;
+		xcb_size_hints_t *size_hints = surface->size_hints;
+		if (surface->modal)
+			return 1;
+
+		if (wlr_xwayland_surface_has_window_type(surface, WLR_XWAYLAND_NET_WM_WINDOW_TYPE_DIALOG)
+				|| wlr_xwayland_surface_has_window_type(surface, WLR_XWAYLAND_NET_WM_WINDOW_TYPE_SPLASH)
+				|| wlr_xwayland_surface_has_window_type(surface, WLR_XWAYLAND_NET_WM_WINDOW_TYPE_TOOLBAR)
+				|| wlr_xwayland_surface_has_window_type(surface, WLR_XWAYLAND_NET_WM_WINDOW_TYPE_UTILITY)) {
+			return 1;
+		}
+
+		return size_hints && size_hints->min_width > 0 && size_hints->min_height > 0
+			&& (size_hints->max_width == size_hints->min_width
+				|| size_hints->max_height == size_hints->min_height);
+	}
+#endif
+
+	toplevel = c->surface.xdg->toplevel;
+	state = toplevel->current;
+	return toplevel->parent || (state.min_width != 0 && state.min_height != 0
+		&& (state.min_width == state.max_width
+			|| state.min_height == state.max_height));
+}
+
+static inline int
+client_is_rendered_on_mon(Client *c, Monitor *m)
+{
+	/* This is needed for when you don't want to check formal assignment,
+	 * but rather actual displaying of the pixels.
+	 * Usually VISIBLEON suffices and is also faster. */
+	struct wlr_surface_output *s;
+	int unused_lx, unused_ly;
+	if (!wlr_scene_node_coords(&c->scene->node, &unused_lx, &unused_ly))
+		return 0;
+	wl_list_for_each(s, &client_surface(c)->current_outputs, link)
+		if (s->output == m->wlr_output)
+			return 1;
+	return 0;
+}
+
+static inline int
+client_is_stopped(Client *c)
+{
+	int pid;
+	siginfo_t in = {0};
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		for (size_t i = 0; i < c->surface.xwayland->window_type_len; i++)
-			if (c->surface.xwayland->window_type[i] == netatom[NetWMWindowTypeDialog] ||
-					c->surface.xwayland->window_type[i] == netatom[NetWMWindowTypeSplash] ||
-					c->surface.xwayland->window_type[i] == netatom[NetWMWindowTypeToolbar] ||
-					c->surface.xwayland->window_type[i] == netatom[NetWMWindowTypeUtility])
-				return 1;
+		return 0;
 #endif
+
+	wl_client_get_credentials(c->surface.xdg->client->client, &pid, NULL, NULL);
+	if (waitid(P_PID, pid, &in, WNOHANG|WCONTINUED|WSTOPPED|WNOWAIT) < 0) {
+		/* This process is not our child process, while is very unlikely that
+		 * it is stopped, in order to do not skip frames, assume that it is. */
+		if (errno == ECHILD)
+			return 1;
+	} else if (in.si_pid) {
+		if (in.si_code == CLD_STOPPED || in.si_code == CLD_TRAPPED)
+			return 1;
+		if (in.si_code == CLD_CONTINUED)
+			return 0;
+	}
+
 	return 0;
 }

@@ -99,11 +282,22 @@ static inline int
 client_is_unmanaged(Client *c)
 {
 #ifdef XWAYLAND
-	return c->type == X11Unmanaged;
+	if (client_is_x11(c))
+		return c->surface.xwayland->override_redirect;
 #endif
 	return 0;
 }

+static inline void
+client_notify_enter(struct wlr_surface *s, struct wlr_keyboard *kb)
+{
+	if (kb)
+		wlr_seat_keyboard_notify_enter(seat, s, kb->keycodes,
+				kb->num_keycodes, &kb->modifiers);
+	else
+		wlr_seat_keyboard_notify_enter(seat, s, NULL, 0, NULL);
+}
+
 static inline void
 client_send_close(Client *c)
 {
@@ -113,7 +307,15 @@ client_send_close(Client *c)
 		return;
 	}
 #endif
-	wlr_xdg_toplevel_send_close(c->surface.xdg);
+	wlr_xdg_toplevel_send_close(c->surface.xdg->toplevel);
+}
+
+static inline void
+client_set_border_color(Client *c, const float color[static 4])
+{
+	int i;
+	for (i = 0; i < 4; i++)
+		wlr_scene_rect_set_color(c->border[i], color);
 }

 static inline void
@@ -125,7 +327,14 @@ client_set_fullscreen(Client *c, int fullscreen)
 		return;
 	}
 #endif
-	wlr_xdg_toplevel_set_fullscreen(c->surface.xdg, fullscreen);
+	wlr_xdg_toplevel_set_fullscreen(c->surface.xdg->toplevel, fullscreen);
+}
+
+static inline void
+client_set_scale(struct wlr_surface *s, float scale)
+{
+	wlr_fractional_scale_v1_notify_scale(s, scale);
+	wlr_surface_set_preferred_buffer_scale(s, (int32_t)ceilf(scale));
 }

 static inline uint32_t
@@ -134,30 +343,62 @@ client_set_size(Client *c, uint32_t width, uint32_t height)
 #ifdef XWAYLAND
 	if (client_is_x11(c)) {
 		wlr_xwayland_surface_configure(c->surface.xwayland,
-				c->geom.x, c->geom.y, width, height);
+				c->geom.x + c->bw, c->geom.y + c->bw, width, height);
 		return 0;
 	}
 #endif
-	return wlr_xdg_toplevel_set_size(c->surface.xdg, width, height);
+	if ((int32_t)width == c->surface.xdg->toplevel->current.width
+			&& (int32_t)height == c->surface.xdg->toplevel->current.height)
+		return 0;
+	return wlr_xdg_toplevel_set_size(c->surface.xdg->toplevel, (int32_t)width, (int32_t)height);
 }

-static inline struct wlr_surface *
-client_surface(Client *c)
+static inline void
+client_set_tiled(Client *c, uint32_t edges)
+{
+#ifdef XWAYLAND
+	if (client_is_x11(c)) {
+		wlr_xwayland_surface_set_maximized(c->surface.xwayland,
+				edges != WLR_EDGE_NONE, edges != WLR_EDGE_NONE);
+		return;
+  }
+#endif
+	if (wl_resource_get_version(c->surface.xdg->toplevel->resource)
+			>= XDG_TOPLEVEL_STATE_TILED_RIGHT_SINCE_VERSION) {
+		wlr_xdg_toplevel_set_tiled(c->surface.xdg->toplevel, edges);
+	} else {
+		wlr_xdg_toplevel_set_maximized(c->surface.xdg->toplevel, edges != WLR_EDGE_NONE);
+	}
+}
+
+static inline void
+client_set_suspended(Client *c, int suspended)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return c->surface.xwayland->surface;
+		return;
 #endif
-	return c->surface.xdg->surface;
+
+	wlr_xdg_toplevel_set_suspended(c->surface.xdg->toplevel, suspended);
 }

-static inline struct wlr_surface *
-client_surface_at(Client *c, double cx, double cy, double *sx, double *sy)
+static inline int
+client_wants_focus(Client *c)
+{
+#ifdef XWAYLAND
+	return client_is_unmanaged(c)
+		&& wlr_xwayland_surface_override_redirect_wants_focus(c->surface.xwayland)
+		&& wlr_xwayland_surface_icccm_input_model(c->surface.xwayland) != WLR_ICCCM_INPUT_MODEL_NONE;
+#endif
+	return 0;
+}
+
+static inline int
+client_wants_fullscreen(Client *c)
 {
 #ifdef XWAYLAND
 	if (client_is_x11(c))
-		return wlr_surface_surface_at(c->surface.xwayland->surface,
-				cx, cy, sx, sy);
+		return c->surface.xwayland->fullscreen;
 #endif
-	return wlr_xdg_surface_surface_at(c->surface.xdg, cx, cy, sx, sy);
+	return c->surface.xdg->toplevel->requested.fullscreen;
 }
@@ -1,19 +1,30 @@
+/* Taken from https://github.com/djpohly/dwl/issues/466 */
+#define COLOR(hex)    { ((hex >> 24) & 0xFF) / 255.0f, \
+                        ((hex >> 16) & 0xFF) / 255.0f, \
+                        ((hex >> 8) & 0xFF) / 255.0f, \
+                        (hex & 0xFF) / 255.0f }
 /* appearance */
 static const int sloppyfocus               = 1;  /* focus follows mouse */
+static const int bypass_surface_visibility = 0;  /* 1 means idle inhibitors will disable idle tracking even if it's surface isn't visible  */
 static const unsigned int borderpx         = 1;  /* border pixel of windows */
-static const float rootcolor[]      = {0.3, 0.3, 0.3, 1.0};
-static const float bordercolor[]    = {0.5, 0.5, 0.5, 1.0};
-static const float focuscolor[]     = {1.0, 0.0, 0.0, 1.0};
+static const float rootcolor[]             = COLOR(0x222222ff);
+static const float bordercolor[]           = COLOR(0x444444ff);
+static const float focuscolor[]            = COLOR(0x005577ff);
+static const float urgentcolor[]           = COLOR(0xff0000ff);
+/* This conforms to the xdg-protocol. Set the alpha to zero to restore the old behavior */
+static const float fullscreen_bg[]         = {0.0f, 0.0f, 0.0f, 1.0f}; /* You can also use glsl colors */

-/* tagging */
-static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
+/* tagging - TAGCOUNT must be no greater than 31 */
+#define TAGCOUNT (9)

+/* logging */
+static int log_level = WLR_ERROR;
+
+/* AT LEAST ONE rule must exist. Define at least an EXAMPLE rule here. */
 static const Rule rules[] = {
 	/* app_id             title       tags mask     isfloating   monitor */
-	/* examples:
-	{ "Gimp",     NULL,       0,            1,           -1 },
-	{ "firefox",  NULL,       1 << 8,       0,           -1 },
-	*/
+	{ "Gimp_EXAMPLE",     NULL,       0,            1,           -1 }, /* Start on currently visible tags floating, not tiled */
+	{ "firefox_EXAMPLE",  NULL,       1 << 8,       0,           -1 }, /* Start on ONLY tag "9" */
 };

 /* layout(s) */
@@ -24,16 +35,19 @@ static const Layout layouts[] = {
 	{ "[M]",      monocle },
 };

-/* monitors
- * The order in which monitors are defined determines their position.
- * Non-configured monitors are always added to the left. */
+/* monitors */
+/*
+ * (x=-1, y=-1) causes a monitor to "autoconfigure" its position
+ *
+ * WARNING: Due to https://gitlab.freedesktop.org/xorg/xserver/-/issues/899
+ * negative monitor positions other than (-1, -1) create problems for Xwayland
+ * clients
+ *
+ * AT LEAST ONE monitor rule must exist. Define at least a NULL default rule here. */
 static const MonitorRule monrules[] = {
 	/* name            mfact  nmaster scale layout       rotate/reflect                x    y */
-	/* example of a HiDPI laptop monitor:
-	{ "eDP-1",    0.5,  1,      2,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL, 0, 0 },
-	*/
-	/* defaults */
-	{ NULL,       0.55, 1,      1,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL, 0, 0 },
+	{ NULL,            0.55f, 1,      1,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1 },
+	{ "eDP-1_EXAMPLE", 0.5f,  1,      2,    &layouts[0], WL_OUTPUT_TRANSFORM_NORMAL,   -1,  -1 },
 };

 /* keyboard */
@@ -42,6 +56,7 @@ static const struct xkb_rule_names xkb_rules = {
 	/* example:
 	.options = "ctrl:nocaps",
 	*/
+	.options = NULL,
 };

 static const int repeat_rate = 25;
@@ -49,9 +64,50 @@ static const int repeat_delay = 600;

 /* Trackpad */
 static const int tap_to_click = 1;
+static const int tap_and_drag = 1;
+static const int drag_lock = 1;
 static const int natural_scrolling = 0;
+static const int disable_while_typing = 1;
+static const int left_handed = 0;
+static const int middle_button_emulation = 0;
+/* You can choose between:
+LIBINPUT_CONFIG_SCROLL_NO_SCROLL
+LIBINPUT_CONFIG_SCROLL_2FG
+LIBINPUT_CONFIG_SCROLL_EDGE
+LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN
+*/
+static const enum libinput_config_scroll_method scroll_method = LIBINPUT_CONFIG_SCROLL_2FG;

+/* You can choose between:
+LIBINPUT_CONFIG_CLICK_METHOD_NONE
+LIBINPUT_CONFIG_CLICK_METHOD_BUTTON_AREAS
+LIBINPUT_CONFIG_CLICK_METHOD_CLICKFINGER
+*/
+static const enum libinput_config_click_method click_method = LIBINPUT_CONFIG_CLICK_METHOD_BUTTON_AREAS;
+
+/* You can choose between:
+LIBINPUT_CONFIG_SEND_EVENTS_ENABLED
+LIBINPUT_CONFIG_SEND_EVENTS_DISABLED
+LIBINPUT_CONFIG_SEND_EVENTS_DISABLED_ON_EXTERNAL_MOUSE
+*/
+static const uint32_t send_events_mode = LIBINPUT_CONFIG_SEND_EVENTS_ENABLED;
+
+/* You can choose between:
+LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT
+LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE
+*/
+static const enum libinput_config_accel_profile accel_profile = LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE;
+static const double accel_speed = 0.0;
+
+/* You can choose between:
+LIBINPUT_CONFIG_TAP_MAP_LRM -- 1/2/3 finger tap maps to left/right/middle
+LIBINPUT_CONFIG_TAP_MAP_LMR -- 1/2/3 finger tap maps to left/middle/right
+*/
+static const enum libinput_config_tap_button_map button_map = LIBINPUT_CONFIG_TAP_MAP_LRM;
+
+/* If you want to use the windows key for MODKEY, use WLR_MODIFIER_LOGO */
 #define MODKEY WLR_MODIFIER_ALT
+
 #define TAGKEYS(KEY,SKEY,TAG) \
 	{ MODKEY,                    KEY,            view,            {.ui = 1 << TAG} }, \
 	{ MODKEY|WLR_MODIFIER_CTRL,  KEY,            toggleview,      {.ui = 1 << TAG} }, \
@@ -62,8 +118,8 @@ static const int natural_scrolling = 0;
 #define SHCMD(cmd) { .v = (const char*[]){ "/bin/sh", "-c", cmd, NULL } }

 /* commands */
-static const char *termcmd[] = { "alacritty", NULL };
-static const char *menucmd[] = { "bemenu-run", NULL };
+static const char *termcmd[] = { "foot", NULL };
+static const char *menucmd[] = { "wmenu-run", NULL };

 static const Key keys[] = {
 	/* Note that Shift changes certain key codes: c -> C, 2 -> at, etc. */
@@ -74,8 +130,8 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_k,          focusstack,     {.i = -1} },
 	{ MODKEY,                    XKB_KEY_i,          incnmaster,     {.i = +1} },
 	{ MODKEY,                    XKB_KEY_d,          incnmaster,     {.i = -1} },
-	{ MODKEY,                    XKB_KEY_h,          setmfact,       {.f = -0.05} },
-	{ MODKEY,                    XKB_KEY_l,          setmfact,       {.f = +0.05} },
+	{ MODKEY,                    XKB_KEY_h,          setmfact,       {.f = -0.05f} },
+	{ MODKEY,                    XKB_KEY_l,          setmfact,       {.f = +0.05f} },
 	{ MODKEY,                    XKB_KEY_Return,     zoom,           {0} },
 	{ MODKEY,                    XKB_KEY_Tab,        view,           {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_C,          killclient,     {0} },
@@ -96,7 +152,7 @@ static const Key keys[] = {
 	TAGKEYS(          XKB_KEY_3, XKB_KEY_numbersign,                 2),
 	TAGKEYS(          XKB_KEY_4, XKB_KEY_dollar,                     3),
 	TAGKEYS(          XKB_KEY_5, XKB_KEY_percent,                    4),
-	TAGKEYS(          XKB_KEY_6, XKB_KEY_caret,                      5),
+	TAGKEYS(          XKB_KEY_6, XKB_KEY_asciicircum,                5),
 	TAGKEYS(          XKB_KEY_7, XKB_KEY_ampersand,                  6),
 	TAGKEYS(          XKB_KEY_8, XKB_KEY_asterisk,                   7),
 	TAGKEYS(          XKB_KEY_9, XKB_KEY_parenleft,                  8),
@@ -104,6 +160,9 @@ static const Key keys[] = {

 	/* Ctrl-Alt-Backspace and Ctrl-Alt-Fx used to be handled by X server */
 	{ WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_Terminate_Server, quit, {0} },
+	/* Ctrl-Alt-Fx is used to switch to another VT, if you don't know what a VT is
+	 * do not remove them.
+	 */
 #define CHVT(n) { WLR_MODIFIER_CTRL|WLR_MODIFIER_ALT,XKB_KEY_XF86Switch_VT_##n, chvt, {.ui = (n)} }
 	CHVT(1), CHVT(2), CHVT(3), CHVT(4), CHVT(5), CHVT(6),
 	CHVT(7), CHVT(8), CHVT(9), CHVT(10), CHVT(11), CHVT(12),
@@ -1,8 +1,36 @@
+_VERSION = 0.8-dev
+VERSION  = `git describe --tags --dirty 2>/dev/null || echo $(_VERSION)`
+
+PKG_CONFIG = pkg-config
+
 # paths
 PREFIX = /usr/local
+MANDIR = $(PREFIX)/share/man
+DATADIR = $(PREFIX)/share

-# Default compile flags (overridable by environment)
-CFLAGS ?= -g -Wall -Wextra -Werror -Wno-unused-parameter -Wno-sign-compare -Wno-unused-function -Wno-unused-variable -Wdeclaration-after-statement
+WLR_INCS = `$(PKG_CONFIG) --cflags wlroots-0.19`
+WLR_LIBS = `$(PKG_CONFIG) --libs wlroots-0.19`

+# Allow using an alternative wlroots installation
+# This has to have all the includes required by wlroots, e.g:
+# Assuming wlroots git repo is "${PWD}/wlroots" and you only ran "meson setup build && ninja -C build"
+#WLR_INCS = -I/usr/include/pixman-1 -I/usr/include/elogind -I/usr/include/libdrm \
+#	-I$(PWD)/wlroots/include
+# Set -rpath to avoid using the wrong library.
+#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/build -L$(PWD)/wlroots/build -lwlroots-0.19
+
+# Assuming you ran "meson setup --prefix ${PWD}/0.19 build && ninja -C build install"
+#WLR_INCS = -I/usr/include/pixman-1 -I/usr/include/elogind -I/usr/include/libdrm \
+#	-I$(PWD)/wlroots/0.19/include/wlroots-0.19
+#WLR_LIBS = -Wl,-rpath,$(PWD)/wlroots/0.19/lib64 -L$(PWD)/wlroots/0.19/lib64 -lwlroots-0.19
+
+XWAYLAND =
+XLIBS =
 # Uncomment to build XWayland support
-#CFLAGS += -DXWAYLAND
+#XWAYLAND = -DXWAYLAND
+#XLIBS = xcb xcb-icccm
+
+# dwl itself only uses C99 features, but wlroots' headers use anonymous unions (C11).
+# To avoid warnings about them, we do not use -std=c99 and instead of using the
+# gmake default 'CC=c99', we use cc.
+CC = cc
@@ -0,0 +1,258 @@
+.Dd January 8, 2021
+.Dt DWL 1
+.Os
+.Sh NAME
+.Nm dwl
+.Nd dwm for Wayland
+.Sh SYNOPSIS
+.Nm
+.Op Fl v
+.Op Fl d
+.Op Fl s Ar startup command
+.Sh DESCRIPTION
+.Nm
+is a Wayland compositor based on wlroots.
+It is intended to fill the same space in the Wayland world that
+.Nm dwm
+does for X11.
+.Pp
+When given the
+.Fl v
+option,
+.Nm
+writes its name and version to standard error and exits unsuccessfully.
+.Pp
+When given the
+.Fl d
+option,
+.Nm
+enables full wlroots logging, including debug information.
+.Pp
+When given the
+.Fl s
+option,
+.Nm
+starts a shell process running
+.Ar command
+when starting.
+When stopping, it sends
+.Dv SIGTERM
+to the child process group and waits for it to exit.
+.Pp
+Users are encouraged to customize
+.Nm
+by editing the sources, in particular
+.Pa config.h .
+The default key bindings are as follows:
+.Bl -tag -width 20n -offset indent -compact
+.It Mod-[1-9]
+Show only all windows with a tag.
+.It Mod-Ctrl-[1-9]
+Show all windows with a tag.
+.It Mod-Shift-[1-9]
+Move window to a single tag.
+.It Mod-Ctrl-Shift-[1-9]
+Toggle tag for window.
+.It Mod-p
+Spawn
+.Xr wmenu-run 1 .
+.It Mod-Shift-Return
+Spawn
+.Xr foot 1 .
+.It Mod-[jk]
+Move focus down/up the stack.
+.It Mod-[id]
+Increase/decrease number of windows in master area.
+.It Mod-[hl]
+Decrease/increase master area.
+.It Mod-Return
+Move window on top of stack or switch top of stack with second window.
+.It Mod-Tab
+Show only all windows with previous tag.
+.It Mod-Shift-c
+Close window.
+.It Mod-t
+Switch to tabbed layout.
+.It Mod-f
+Switch to floating layout.
+.It Mod-m
+Switch to monocle layout.
+.It Mod-Space
+Switch to previous layout.
+.It Mod-Shift-Space
+Toggle floating state of window.
+.It Mod-e
+Toggle fullscreen state of window.
+.It Mod-0
+Show all windows.
+.It Mod-Shift-0
+Set all tags for window.
+.It Mod-,
+Move focus to previous monitor.
+.It Mod-.
+Move focus to next monitor.
+.It Mod-Shift-,
+Move window to previous monitor.
+.It Mod-Shift-.
+Move window to next monitor.
+.It Mod-Shift-q
+Quit
+.Nm .
+.El
+These might differ depending on your keyboard layout.
+.Ss Mouse commands
+.Bl -tag -width 20n -offset indent -compact
+.It Mod-Button1
+Move focused window while dragging.
+Tiled windows will be toggled to the floating state.
+.It Mod-Button2
+Toggle focused window between floating and tiled state.
+.It Mod-Button3
+Resize focused window while dragging.
+Tiled windows will be toggled to the floating state.
+.El
+.Sh STATUS INFORMATION
+.Nm
+writes its status information to standard output.
+If the
+.Fl s
+option is given, the status information is written to the standard input of the
+child process instead.
+.Pp
+Said information has the following format:
+.Bd -ragged -offset indent
+.Ar <monitor>
+.Ar <component>
+.Ar <data>
+.Ed
+.Pp
+.Bl -tag -width 11n -offset 0 -compact
+.It Ar <monitor>
+is the name given to the output.
+.It Ar <component>
+is one of (in order)
+.Em title ,
+.Em appid ,
+.Em fullscreen ,
+.Em floating ,
+.Em selmon ,
+.Em tags ,
+.Em layout .
+.It Ar <data>
+changes depending on
+.Ar <component> .
+.Bl -tag -width 10n -compact
+.It Em title
+The title of the focused window on
+.Ar <monitor>
+or nothing if there is no focused window.
+.It Em appid
+The app_id of the focused window on
+.Ar <monitor>
+or nothing if there is no focused window.
+.It Em fullscreen
+Prints 1 if the focused window on
+.Ar <monitor>
+is in fullscreen state, otherwise prints 0. If there is no focused
+window it prints nothing.
+.It Em floating
+Prints 1 if the focused window on
+.Ar <monitor>
+is in floating state, otherwise prints 0. If there is no focused
+window it prints nothing.
+.It Em selmon
+Prints 1 if
+.Ar <monitor>
+is the selected monitor, otherwise prints 0.
+.It Em tags
+Prints four bitmasks in the following order:
+.Bl -bullet -width 2n -compact
+.It
+Occupied tags of
+.Ar <monitor> .
+.It
+Selected tags of
+.Ar <monitor> .
+.It
+Tags of the focused window on
+.Ar <monitor> .
+.It
+Tags where a window on
+.Ar <monitor>
+requested activation or has urgency hints.
+.El
+The bitmasks are 32-bit unsigned decimal integers.
+.It Em layout
+Prints the symbol of the current layout.
+.El
+.El
+.Ss Examples
+When there is a selected window:
+.Bd -literal -offset indent
+HDMI\-A\-1 title \(ti/source/repos/dwl > man \-l dwl.1
+HDMI\-A\-1 appid footclient
+HDMI\-A\-1 fullscreen 0
+HDMI\-A\-1 floating 0
+HDMI\-A\-1 selmon 1
+HDMI\-A\-1 tags 271 4 4 0
+HDMI\-A\-1 layout [T]
+.Ed
+.Pp
+When there is no selected window:
+.Bd -literal -offset indent
+HDMI\-A\-1 title
+HDMI\-A\-1 appid
+HDMI\-A\-1 fullscreen
+HDMI\-A\-1 floating
+HDMI\-A\-1 selmon 1
+HDMI\-A\-1 tags 271 512 0 0
+HDMI\-A\-1 layout [T]
+.Ed
+.Sh ENVIRONMENT
+These environment variables are used by
+.Nm :
+.Bl -tag -width XDG_RUNTIME_DIR
+.It Ev XDG_RUNTIME_DIR
+A directory where temporary user files, such as the Wayland socket,
+are stored.
+.It Ev XDG_CONFIG_DIR
+A directory containing configuration of various programs and
+libraries, including libxkbcommon.
+.It Ev DISPLAY , WAYLAND_DISPLAY , WAYLAND_SOCKET
+Tell how to connect to an underlying X11 or Wayland server.
+.It Ev WLR_*
+Various variables specific to wlroots.
+.It Ev XKB_* , XLOCALEDIR , XCOMPOSEFILE
+Various variables specific to libxkbcommon.
+.It Ev XCURSOR_PATH
+List of directories to search for XCursor themes in.
+.It Ev HOME
+A directory where there are always dear files there for you.
+Waiting for you to clean them up.
+.El
+.Pp
+These are set by
+.Nm :
+.Bl -tag -width WAYLAND_DISPLAY
+.It Ev WAYLAND_DISPLAY
+Tell how to connect to
+.Nm .
+.It Ev DISPLAY
+If using
+.Nm Xwayland ,
+tell how to connect to the
+.Nm Xwayland
+server.
+.El
+.Sh EXAMPLES
+Start
+.Nm
+with s6 in the background:
+.Dl dwl \-s \(aqs6\-svscan <&\-\(aq
+.Sh SEE ALSO
+.Xr dwm 1 ,
+.Xr foot 1 ,
+.Xr wmenu 1 ,
+.Xr xkeyboard-config 7
+.Sh BUGS
+All of them.
@@ -0,0 +1,5 @@
+[Desktop Entry]
+Name=dwl
+Comment=dwm for Wayland
+Exec=dwl
+Type=Application
@@ -1,49 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<protocol name="idle">
-  <copyright><![CDATA[
-    Copyright (C) 2015 Martin Gräßlin
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Lesser General Public License as published by
-    the Free Software Foundation, either version 2.1 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Lesser General Public License for more details.
-
-    You should have received a copy of the GNU Lesser General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  ]]></copyright>
-  <interface  name="org_kde_kwin_idle" version="1">
-      <description summary="User idle time manager">
-        This interface allows to monitor user idle time on a given seat. The interface
-        allows to register timers which trigger after no user activity was registered
-        on the seat for a given interval. It notifies when user activity resumes.
-
-        This is useful for applications wanting to perform actions when the user is not
-        interacting with the system, e.g. chat applications setting the user as away, power
-        management features to dim screen, etc..
-      </description>
-      <request name="get_idle_timeout">
-        <arg name="id" type="new_id" interface="org_kde_kwin_idle_timeout"/>
-        <arg name="seat" type="object" interface="wl_seat"/>
-        <arg name="timeout" type="uint" summary="The idle timeout in msec"/>
-      </request>
-  </interface>
-  <interface name="org_kde_kwin_idle_timeout" version="1">
-      <request name="release" type="destructor">
-        <description summary="release the timeout object"/>
-      </request>
-      <request name="simulate_user_activity">
-          <description summary="Simulates user activity for this timeout, behaves just like real user activity on the seat"/>
-      </request>
-      <event name="idle">
-          <description summary="Triggered when there has not been any user activity in the requested idle time interval"/>
-      </event>
-      <event name="resumed">
-          <description summary="Triggered on the first user activity after an idle event"/>
-      </event>
-  </interface>
-</protocol>
@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="wlr_output_power_management_unstable_v1">
+  <copyright>
+    Copyright © 2019 Purism SPC
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="Control power management modes of outputs">
+    This protocol allows clients to control power management modes
+    of outputs that are currently part of the compositor space. The
+    intent is to allow special clients like desktop shells to power
+    down outputs when the system is idle.
+
+    To modify outputs not currently part of the compositor space see
+    wlr-output-management.
+
+    Warning! The protocol described in this file is experimental and
+    backward incompatible changes may be made. Backward compatible changes
+    may be added together with the corresponding interface version bump.
+    Backward incompatible changes are done by bumping the version number in
+    the protocol and interface names and resetting the interface version.
+    Once the protocol is to be declared stable, the 'z' prefix and the
+    version number in the protocol and interface names are removed and the
+    interface version number is reset.
+  </description>
+
+  <interface name="zwlr_output_power_manager_v1" version="1">
+    <description summary="manager to create per-output power management">
+      This interface is a manager that allows creating per-output power
+      management mode controls.
+    </description>
+
+    <request name="get_output_power">
+      <description summary="get a power management for an output">
+        Create a output power management mode control that can be used to
+        adjust the power management mode for a given output.
+      </description>
+      <arg name="id" type="new_id" interface="zwlr_output_power_v1"/>
+      <arg name="output" type="object" interface="wl_output"/>
+    </request>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the manager">
+        All objects created by the manager will still remain valid, until their
+        appropriate destroy request has been called.
+      </description>
+    </request>
+  </interface>
+
+  <interface name="zwlr_output_power_v1" version="1">
+    <description summary="adjust power management mode for an output">
+      This object offers requests to set the power management mode of
+      an output.
+    </description>
+
+    <enum name="mode">
+      <entry name="off" value="0"
+             summary="Output is turned off."/>
+      <entry name="on" value="1"
+             summary="Output is turned on, no power saving"/>
+    </enum>
+
+    <enum name="error">
+      <entry name="invalid_mode" value="1" summary="inexistent power save mode"/>
+    </enum>
+
+    <request name="set_mode">
+      <description summary="Set an outputs power save mode">
+        Set an output's power save mode to the given mode. The mode change
+        is effective immediately. If the output does not support the given
+        mode a failed event is sent.
+      </description>
+      <arg name="mode" type="uint" enum="mode" summary="the power save mode to set"/>
+    </request>
+
+    <event name="mode">
+      <description summary="Report a power management mode change">
+        Report the power management mode change of an output.
+
+        The mode event is sent after an output changed its power
+        management mode. The reason can be a client using set_mode or the
+        compositor deciding to change an output's mode.
+        This event is also sent immediately when the object is created
+        so the client is informed about the current power management mode.
+      </description>
+      <arg name="mode" type="uint" enum="mode"
+           summary="the output's new power management mode"/>
+    </event>
+
+    <event name="failed">
+      <description summary="object no longer valid">
+        This event indicates that the output power management mode control
+        is no longer valid. This can happen for a number of reasons,
+        including:
+        - The output doesn't support power management
+        - Another client already has exclusive power management mode control
+          for this output
+        - The output disappeared
+
+        Upon receiving this event, the client should destroy this object.
+      </description>
+    </event>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy this power management">
+        Destroys the output power management mode control object.
+      </description>
+    </request>
+  </interface>
+</protocol>
@@ -0,0 +1,51 @@
+/* See LICENSE.dwm file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "util.h"
+
+void
+die(const char *fmt, ...) {
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	} else {
+		fputc('\n', stderr);
+	}
+
+	exit(1);
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		die("calloc:");
+	return p;
+}
+
+int
+fd_set_nonblock(int fd) {
+	int flags = fcntl(fd, F_GETFL);
+	if (flags < 0) {
+		perror("fcntl(F_GETFL):");
+		return -1;
+	}
+	if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) {
+		perror("fcntl(F_SETFL):");
+		return -1;
+	}
+
+	return 0;
+}
@@ -0,0 +1,5 @@
+/* See LICENSE.dwm file for copyright and license details. */
+
+void die(const char *fmt, ...);
+void *ecalloc(size_t nmemb, size_t size);
+int fd_set_nonblock(int fd);