[bug] decoration doesn't work on Wayland

[Sir-Thom]

Describe the bug

On wayland when "decorations": false in tauri.conf.json , the decoration doesn't hide but when std::env::set_var("GDK_BACKEND", "x11"); it hidden but I do not want to set it to x11.

Reproduction

1.set "decorations": false in tauri.conf.json 2.start your tauri application

Expected behavior

the decoration is not visible when using wayland without setting.

Platform and versions

Environment
  › OS: openSUSE 20230322 X64
  › Node.js: 16.18.0
  › npm: 9.3.1
  › pnpm: 7.17.0
  › yarn: 1.22.19
  › rustup: 1.25.2
  › rustc: 1.67.1
  › cargo: 1.67.1
  › Rust toolchain: stable-x86_64-unknown-linux-gnu 

Packages
  › @tauri-apps/cli [NPM]: 1.2.3
  › @tauri-apps/api [NPM]: 1.2.0
  › tauri [RUST]: 1.2.4,
  › tauri-build [RUST]: 1.2.1,
  › tao [RUST]: 0.15.8,
  › wry [RUST]: 0.23.4,

App
  › build-type: bundle
  › CSP: unset
  › distDir: ../dist
  › devPath: http://localhost:1420/
  › framework: React
  › bundler: Vite

App directory structure
  ├─ src-tauri
  ├─ .vscode
  ├─ src
  ├─ public
  ├─ dist
  ├─ .github
  ├─ node_modules
  ├─ .git
  └─ docker

Stack trace

No response

Additional context

No response

[lsabi]

I'm developing on an Ubuntu based OS and bumped into the same problem. Took me a while before realizing...

Environment
  › OS: Ubuntu 23.04 X64
  › Node.js: 18.12.0
  › npm: 9.5.1
  › pnpm: Not installed!
  › yarn: 0.32+git
  › rustup: 1.25.2
  › rustc: 1.68.0
  › cargo: 1.68.0
  › Rust toolchain: stable-x86_64-unknown-linux-gnu 

Packages
  › @tauri-apps/cli [NPM]: 1.0.2 (outdated, latest: 1.3.1)
  › @tauri-apps/api [NPM]: 1.3.0
  › tauri [RUST]: 1.3.0,
  › tauri-build [RUST]: 1.3.0,
  › tao [RUST]: 0.16.1,
  › wry [RUST]: 0.24.3,

App
  › build-type: bundle
  › CSP: unset
  › distDir: public
  › devPath: http://localhost:5173/
  › framework: Svelte

App directory structure
  ├─ .svelte-kit
  ├─ node_modules
  ├─ public
  ├─ src
  ├─ src-tauri
  └─ static

[p0ryae]

I can also confirm the same issue on Wayland, Arch Linux

[✔] Environment
    - OS: Arch Linux Rolling Release X64
    ✔ webkit2gtk-4.0: 2.40.3
    ✔ rsvg2: 2.56.2
    ✔ rustc: 1.70.0 (90c541806 2023-05-31)
    ✔ Cargo: 1.70.0 (ec8a8a0ca 2023-04-25)
    ✔ rustup: 1.26.0 (5af9b9484 2023-04-05)
    ✔ Rust toolchain: stable-x86_64-unknown-linux-gnu (default)
    - node: 20.4.0
    - yarn: 1.22.19
    - npm: 9.8.0

[-] Packages
    - tauri [RUST]: 1.4.0
    - tauri-build [RUST]: 1.4.0
    - wry [RUST]: 0.24.3
    - tao [RUST]: 0.16.2
    - @tauri-apps/api [NPM]: 1.4.0
    - @tauri-apps/cli [NPM]: 1.4.0

[-] App
    - build-type: bundle
    - CSP: unset
    - distDir: ../dist
    - devPath: http://localhost:8080/
    - framework: Vue.js (Vue CLI)
    - bundler: Webpack

[jibejb]

~~This bug is from gtk. Both gtk+3.0 and gtk4 have this bug. I have reproduced it but I don't know how to fix it.~~ ~~Now I am confused that weather it is form gtk or kde. I can not reproduced the bug on gnome.~~

https://bugs.kde.org/show_bug.cgi?id=484800

It seems like this bug is from GTK? https://gitlab.gnome.org/GNOME/gtk/-/issues/5479

OS: Arch Linux x86_64 DE: KDE Plasma 6.0.3 Kernel: 6.8.2-arch2-1 WM: KWin (Wayland) WM Theme: Breeze Theme: Breeze (Light) [QT], Breeze [GTK2/3] Icons: breeze [QT], breeze [GTK2/3/4] Font: Noto Sans CJK SC (10pt) [QT], Noto Sans CJK SC (10pt) [GTK2/3] Cursor: breeze (24px) Terminal: konsole 24.2.1