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Wayland: Fix mapping failure on wlroots compositor

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When showing a window that had already been shown once (and so already
had its shell objects), GLFW would attach a new buffer and commit it
before waiting for the next configure event.  This was a violation of
the XDG shell protocol.

This was allowed to work as intended on GNOME and KDE without error.
However wlroots based compositors would (correctly) emit an error.

Unfortunately, I haven't been able to find a way to get both KDE, GNOME
and Sway to send the configure event we need in order to map the
wl_surface again while keeping our existing shell objects, so with this
commit we now create them for each call to glfwShowWindow and destroy
them for each call to glfwHideWindow.

Fixes #1268

(cherry picked from commit 83a134a92f)
This commit is contained in:
Camilla Löwy 2022-06-20 00:43:24 +02:00
parent fae1d349d3
commit c807f386c2
2 changed files with 35 additions and 19 deletions
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2
README.md
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@ -178,6 +178,8 @@ information on what to include when reporting a bug.
applying the specified ratio
- [Wayland] Bugfix: `GLFW_MAXIMIZED` window hint had no effect
- [Wayland] Bugfix: `glfwRestoreWindow` had no effect before first show
- [Wayland] Bugfix: Hiding and then showing a window caused program abort on
wlroots compositors (#1268)
## Contact

52
src/wl_window.c
View File

@ -605,6 +605,14 @@ static void xdgSurfaceHandleConfigure(void* userData,
resizeWindow(window);
_glfwInputWindowSize(window, width, height);
if (window->wl.visible)
_glfwInputWindowDamage(window);
}
if (!window->wl.visible)
{
window->wl.visible = GLFW_TRUE;
_glfwInputWindowDamage(window);
}
}
@ -614,7 +622,7 @@ static const struct xdg_surface_listener xdgSurfaceListener =
xdgSurfaceHandleConfigure
};
static GLFWbool createXdgSurface(_GLFWwindow* window)
static GLFWbool createShellObjects(_GLFWwindow* window)
{
window->wl.xdg.surface = xdg_wm_base_get_xdg_surface(_glfw.wl.wmBase,
window->wl.surface);
@ -710,6 +718,24 @@ static GLFWbool createXdgSurface(_GLFWwindow* window)
return GLFW_TRUE;
}
static void destroyShellObjects(_GLFWwindow* window)
{
destroyFallbackDecorations(window);
if (window->wl.xdg.decoration)
zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
if (window->wl.xdg.toplevel)
xdg_toplevel_destroy(window->wl.xdg.toplevel);
if (window->wl.xdg.surface)
xdg_surface_destroy(window->wl.xdg.surface);
window->wl.xdg.decoration = NULL;
window->wl.xdg.toplevel = NULL;
window->wl.xdg.surface = NULL;
}
static GLFWbool createNativeSurface(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
const _GLFWfbconfig* fbconfig)
@ -749,10 +775,8 @@ static GLFWbool createNativeSurface(_GLFWwindow* window,
if (window->monitor || wndconfig->visible)
{
if (!createXdgSurface(window))
if (!createShellObjects(window))
return GLFW_FALSE;
window->wl.visible = GLFW_TRUE;
}
return GLFW_TRUE;
@ -1882,9 +1906,7 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
if (window->context.destroy)
window->context.destroy(window);
destroyFallbackDecorations(window);
if (window->wl.xdg.decoration)
zxdg_toplevel_decoration_v1_destroy(window->wl.xdg.decoration);
destroyShellObjects(window);
if (window->wl.decorations.buffer)
wl_buffer_destroy(window->wl.decorations.buffer);
@ -1892,12 +1914,6 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
if (window->wl.egl.window)
wl_egl_window_destroy(window->wl.egl.window);
if (window->wl.xdg.toplevel)
xdg_toplevel_destroy(window->wl.xdg.toplevel);
if (window->wl.xdg.surface)
xdg_surface_destroy(window->wl.xdg.surface);
if (window->wl.surface)
wl_surface_destroy(window->wl.surface);
@ -2086,15 +2102,11 @@ void _glfwPlatformMaximizeWindow(_GLFWwindow* window)
void _glfwPlatformShowWindow(_GLFWwindow* window)
{
if (!window->wl.visible)
if (!window->wl.xdg.toplevel)
{
// NOTE: The XDG/shell surface is created here so command-line applications
// with off-screen windows do not appear in for example the Unity dock
if (!window->wl.xdg.toplevel)
createXdgSurface(window);
window->wl.visible = GLFW_TRUE;
_glfwInputWindowDamage(window);
createShellObjects(window);
}
}
@ -2103,6 +2115,8 @@ void _glfwPlatformHideWindow(_GLFWwindow* window)
if (window->wl.visible)
{
window->wl.visible = GLFW_FALSE;
destroyShellObjects(window);
wl_surface_attach(window->wl.surface, NULL, 0, 0);
wl_surface_commit(window->wl.surface);
}