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[Linux] Implement Window::SetResizable without breaking programmatic resizing #56
Description
Window::SetResizable() is a stub on Linux (src/platform/linux/window_linux.cpp), so setResizable(false) does nothing there.
Implementing it with gtk_window_set_resizable() runs into a known GTK behaviour: a non-resizable GtkWindow is sized from its default size or size request, so later SetSize() / SetContentSize() calls stop taking effect. The implementation needs to keep programmatic resizing working while the user can't resize. One option is to pin min = max size hints to the requested size instead of toggling resizable, or to update the default size together with the size.
Background, from window_manager (moving onto nativeapi in 0.6.0):
- LInux - setDefaultSize needed leanflutter/window_manager#522: setSize() ignored after setResizable(false) (also #238)
- linux: add set_default_size method leanflutter/window_manager#523: a PR that added a Linux-only
setDefaultSizeto work around it
Activity
lijy91 commentedon Sep 22, 2026
Fixed in 10ac6fe.
SetResizable()/IsResizable()now use GTK'sresizableproperty. To avoid the GTK fixed-size trap, disabling resize first sets the default size to the current size, andSetSize/SetContentSizeupdate the default size while the window is non-resizable. So programmatic grow and shrink still work, toggling keeps the current size, and #55's min/max limits survive the toggle.IsResizable()reads the native property.Verified with
window_resizable_linux_teston GNOME: Wayland 54 checks, Xwayland 66. Cases covered: CSD and SSD, empty windows, and disabling before or after mapping.window_resizable_desktop_testconfirms the same behaviour on macOS and Windows (32 checks each); no changes were needed there.Linux: resizable, window controls and restoring minimized windows