124cbea347
When a window is maximized by clicking the 'maximize' button in the window frame, the WindowFrame *is* invalidated and repainted properly. However, the internal state of the WindowServer::Button does not get updated until the next mouse movement. This means that the 'maximize' button is erroneously highlighted until the mouse moves again. This is very visible. Ideally, a patch should compute the actual new m_hovered. However, this requires knowledge of the new rect, or calling something on the Button after the new rect has been determined. Until someone can figure out a good way around this, setting m_hovered to false is a solution that 'usually' works. Note that this does *not* work when after maximizing/restoring, the maximize button falls exactly under the mouse again. The button functions properly, but is erroneously not highlighted. At least a *missing* highlight is less noticable than a highlight too many.
SerenityOS
Graphical Unix-like operating system for x86 computers.
About
SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.
Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.
I (Andreas) regularly post raw hacking sessions and demos on my YouTube channel.
Sometimes I write about the system on my github.io blog.
I'm also on Patreon and GitHub Sponsors if you would like to show some support that way.
Screenshot
Kernel features
- x86 (32-bit) kernel with pre-emptive multi-threading
- Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
- IPv4 stack with ARP, TCP, UDP and ICMP protocols
- ext2 filesystem
- POSIX signals
- Purgeable memory
- /proc filesystem
- Pseudoterminals (with /dev/pts filesystem)
- Filesystem notifications
- CPU and memory profiling
- SoundBlaster 16 driver
- VMWare/QEMU mouse integration
System services
- Launch/session daemon (SystemServer)
- Compositing window server (WindowServer)
- Text console manager (TTYServer)
- DNS client (LookupServer)
- Network protocols server (ProtocolServer)
- Software-mixing sound daemon (AudioServer)
- Desktop notifications (NotificationServer)
- HTTP server (WebServer)
- Telnet server (TelnetServer)
Libraries
- C++ templates and containers (AK)
- Event loop and utilities (LibCore)
- 2D graphics library (LibGfx)
- GUI toolkit (LibGUI)
- Cross-process communication library (LibIPC)
- HTML/CSS engine (LibWeb)
- JavaScript engine (LibJS)
- Markdown (LibMarkdown)
- Audio (LibAudio)
- PCI database (LibPCIDB)
- Terminal emulation (LibVT)
- Network protocols (HTTP) (LibProtocol)
- Mathematical functions (LibM)
- ELF file handing (LibELF)
- POSIX threading (LibPthread)
- Higher-level threading (LibThread)
Userland features
- Unix-like libc and userland
- Shell with pipes and I/O redirection
- On-line help system (both terminal and GUI variants)
- Web browser (Browser)
- C++ IDE (HackStudio)
- IRC client
- Desktop synthesizer (Piano)
- Various desktop apps & games
- Color themes
How do I build and run this?
See the SerenityOS build instructions
Wanna chat?
Come hang out with us in #serenityos on the Freenode IRC network.
Author
- Andreas Kling - awesomekling
Contributors
- Robin Burchell - rburchell
- Conrad Pankoff - deoxxa
- Sergey Bugaev - bugaevc
- Liav A - supercomputer7
(And many more!) Feel free to append yourself here if you've made some sweet contributions. :)
License
SerenityOS is licensed under a 2-clause BSD license.