a53b2cc28c
While investigating issue #2 I was able to reproduce it and view the panic that causes the komorebi process to become non-responsive. When switching to a columnar layout (which is the default for the 2nd workspace in the sample ahk config), there is the possibility to cause a divide by zero panic if the len passed to Layout::calculate is 0. I have remedied this by changing the type of len from usize to NonZeroUsize, and also by ensuring that Layout::calculate is only called from within the komorebi crate if the workspace has at least one container. While moving containers around I also noticed that creating a new container for a window may also cause a panic if focused_idx + 1 is greater than the length of the VecDeque of containers, so this was addressed by pushing to the back of the VecDeque in that case. re #2
komorebi
Tiling Window Management for Windows.
About
komorebi is a tiling window manager that works as an extension to Microsoft's Desktop Window Manager in Windows 10 and above.
komorebi allows you to control application windows, virtual workspaces and display monitors with a CLI which can be used with third-party software such as AutoHotKey to set user-defined keyboard shortcuts.
Description
komorebi only responds to WinEvents and the messages it receives on a dedicated socket.
komorebic is a CLI that writes messages on komorebi's socket.
komorebi doesn't handle any keyboard or mouse inputs; a third party program (e.g. AutoHotKey) is needed in order to translate keyboard and mouse events to komorebic commands.
This architecture, popularised by bspwm on Linux and yabai on macOS, is outlined as follows:
PROCESS SOCKET
ahk --------> komorebic <------> komorebi
Design
komorebi is the successor to yatta and as such aims to build on the learnings from that project.
While yatta was primary an attempt to learn how to work with and call Windows APIs from Rust, while secondarily implementing a minimal viable tiling window manager for my own needs (largely single monitor, single workspace), komorebi has been redesigned from the ground-up to support more complex features that have become standard in tiling window managers on other platforms.
komorebi holds a list of physical monitors.
A monitor is just a rectangle of the available work area which contains one or more virtual workspaces.
A workspace holds a list of containers.
A container is just a rectangle where one or more application windows can be displayed.
This means that:
- Every monitor has its own collection of virtual workspaces
- Workspaces only know about containers and their dimensions, not about individual application windows
- Every application window must belong to a container, even if that container only contains one application window
- Many application windows can be stacked and cycled through in the same container within a workspace
Getting Started
This project is still heavily under development and there are no prebuilt binaries available yet.
If you would like to use komorebi, you will need
a working Rust development environment on Windows 10. If you are using
the x86_64-pc-windows-msvc toolchain, make sure you have also installed
the Build Tools for Visual Studio 2019.
You can then clone this repo and compile the source code to install the binaries for komorebi and komorebic:
cargo install --path komorebi
cargo install --path komorebic
By running komorebic start at a Powershell prompt, you should see the following output:
Start-Process komorebi -WindowStyle hidden
This means that komorebi is now running in the background, tiling all your windows, and listening for commands sent to it
by komorebic.
You can similarly stop the process by running komorebic stop.
If you have AutoHotKey installed and a komorebi.ahk file in your home directory (run $Env:UserProfile at a
PowerShell prompt to find your home directory), komorebi will automatically try to load it when starting.
Configuration
As previously mentioned, this project does not handle anything related to keybindings and shortcuts directly. I personally use AutoHotKey to manage my window management shortcuts, and have provided a sample komorebi.ahk AHK script that you can use as a starting point for your own.
Features
- Multi-monitor
- Virtual workspaces
- Window stacks
- Cycle through stacked windows
- Change focused window by direction
- Move focused window container in direction
- Move focused window container to monitor
- Move focused window container to workspace
- Mouse follows focused container
- Resize window container in direction
- Resize child window containers by split ratio
- Mouse drag to swap window container position
- Mouse drag to resize window container
- Configurable workspace and container gaps
- BSP tree layout
- Flip BSP tree layout horizontally or vertically
- Equal-width, max-height column layout
- Floating rules based on exe name
- Floating rules based on window title
- Floating rules based on window class
- Toggle floating windows
- Toggle monocle window
- Toggle focus follows mouse
- Pause all window management
- View window manager state
Development
If you would like to contribute code to this repository, there are a few requests that I have to ensure a foundation of code quality, consistency and commit hygiene:
- Flatten all
usestatements except inbindings/build.rs - Run
cargo +nightly clippyand ensure that all lints and suggestions have been addressed before committing - Run
cargo +nightly fmt --allto ensure consistent formatting before committing - Use
git czwith the Commitizen CLI to prepare commit messages - Provide at least one short sentence or paragraph in your commit message body to describe your thought process for the changes being committed
Logs and Debugging
Logs from komorebi will be appended to ~/komorebi.log; this file is never rotated or overwritten, so it will keep
growing until it is deleted by the user.
Whenever running the komorebic stop command or sending a Ctrl-C signal to komorebi directly, the komorebi process
ensures that all hidden windows are restored before termination.
If however, you ever end up with windows that are hidden and cannot be restored, a list of window handles known
to komorebi are stored and continuously updated in ~/komorebi.hwnd.json.
Running komorebic restore-windows will read the list of window handles and forcibly restore them, regardless of
whether the main komorebi process is running.
Window Manager State and Integrations
The current state of the window manager can be queried using the komorebic state command, which returns a JSON
representation of the WindowManager struct.
This may also be polled to build further integrations and widgets on top of (if you ever wanted to build something like Stackline for Windows, you could do it by polling this command).
{
"monitors": {
"elements": [
{
"id": 65537,
"monitor_size": {
"left": 0,
"top": 0,
"right": 3840,
"bottom": 2160
},
"work_area_size": {
"left": 0,
"top": 40,
"right": 3840,
"bottom": 2120
},
"workspaces": {
"elements": [
{
"name": "bsp",
"containers": {
"elements": [
{
"windows": {
"elements": [
{
"hwnd": 2623596,
"title": "komorebi – README.md",
"exe": "idea64.exe",
"class": "SunAwtFrame",
"rect": {
"left": 8,
"top": 60,
"right": 1914,
"bottom": 2092
}
}
],
"focused": 0
}
},
{
"windows": {
"elements": [
{
"hwnd": 198266,
"title": "LGUG2Z/komorebi: A(nother) tiling window manager for Windows 10 based on binary space partitioning - Mozilla Firefox",
"exe": "firefox.exe",
"class": "MozillaWindowClass",
"rect": {
"left": 1918,
"top": 60,
"right": 1914,
"bottom": 1042
}
}
],
"focused": 0
}
},
{
"windows": {
"elements": [
{
"hwnd": 1247352,
"title": "Windows PowerShell",
"exe": "WindowsTerminal.exe",
"class": "CASCADIA_HOSTING_WINDOW_CLASS",
"rect": {
"left": 1918,
"top": 1110,
"right": 959,
"bottom": 1042
}
}
],
"focused": 0
}
},
{
"windows": {
"elements": [
{
"hwnd": 395464,
"title": "Signal",
"exe": "Signal.exe",
"class": "Chrome_WidgetWin_1",
"rect": {
"left": 2873,
"top": 1110,
"right": 959,
"bottom": 1042
}
}
],
"focused": 0
}
}
],
"focused": 2
},
"monocle_container": null,
"floating_windows": [],
"layout": "BSP",
"layout_flip": null,
"workspace_padding": 10,
"container_padding": 10
}
],
"focused": 0
}
}
],
"focused": 0
},
"is_paused": false
}