x11: log a warning if we're running against Xwayland

Check if the XWAYLAND extension is available and if so, print a warning. This extension is available in xwayland 23.1.0 and later.
shymega · Mar 11, 2024 · 396317e · 396317e
1 parent 6cfeacd
commit 396317e
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diff --git a/doc/newsfragments/warn-on-xwayland.feature b/doc/newsfragments/warn-on-xwayland.feature
@@ -0,0 +1 @@
+InputLeap now warns when connecting to Xwayland.
diff --git a/src/lib/platform/XWindowsScreen.cpp b/src/lib/platform/XWindowsScreen.cpp
@@ -118,6 +118,8 @@ XWindowsScreen::XWindowsScreen(
                                              m_keyMap);
 		LOG_DEBUG("screen shape: %d,%d %dx%d %s", m_x, m_y, m_w, m_h, m_xinerama ? "(xinerama)" : "");
 		LOG_DEBUG("window is 0x%08lx", m_window);
+        if (detectXwayland())
+            LOG_WARN("Running against Xwayland. InputLeap will not work as expected");
 	}
 	catch (...) {
         if (m_display != nullptr) {
@@ -2025,6 +2027,14 @@ XWindowsScreen::detectXI2()
 			"XInputExtension", &xi_opcode, &event, &error);
 }
 
+bool
+XWindowsScreen::detectXwayland()
+{
+    int opcode, event, error;
+    return m_impl->XQueryExtension(m_display, "XWAYLAND",
+                                   &opcode, &event, &error);
+}
+
 void
 XWindowsScreen::selectXIRawMotion()
 {

diff --git a/src/lib/platform/XWindowsScreen.h b/src/lib/platform/XWindowsScreen.h
@@ -143,6 +143,7 @@ class XWindowsScreen : public PlatformScreen {
     int y_accumulateMouseScroll(std::int32_t yDelta) const;
 
     bool detectXI2();
+    bool detectXwayland();
     void selectXIRawMotion();
     void selectEvents(Window) const;
     void doSelectEvents(Window) const;
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		InputLeap now warns when connecting to Xwayland.