Removed support for primary and secondary selections.

src/x11_clipboard.c

@@ -142,8 +142,7 @@ void _glfwPlatformSetClipboardData(void *data, size_t size, int format)
     XSetSelectionOwner(_glfwLibrary.X11.display, XA_PRIMARY,
                        _glfwLibrary.activeWindow->X11.handle, CurrentTime);
     XSetSelectionOwner(_glfwLibrary.X11.display,
-                       _glfwLibrary.X11.selection.atoms.clipboard
-                       [_GLFW_CLIPBOARD_ATOM_CLIPBOARD],
+                       _glfwLibrary.X11.selection.atom,
                        _glfwLibrary.activeWindow->X11.handle, CurrentTime);
     XFlush(_glfwLibrary.X11.display);
 }
@@ -162,44 +161,36 @@ size_t _glfwPlatformGetClipboardData(void *data, size_t size, int format)
 
     // Try different clipboards and formats that relate to the GLFW
     // format with preference for more appropriate formats first
-    Atom *xcbrd = _glfwLibrary.X11.selection.atoms.clipboard;
-    Atom *xcbrdend = _glfwLibrary.X11.selection.atoms.clipboard +
-                     _GLFW_CLIPBOARD_ATOM_COUNT;
     Atom *xfmt = getInternalFormat(format);
     Atom *xfmtend = xfmt + _GLFW_STRING_ATOM_COUNT;
 
     // Get the currently active window
     Window window = _glfwLibrary.activeWindow->X11.handle;
 
-    for ( ;  xcbrd != xcbrdend;  xcbrd++)
+    for ( ;  xfmt != xfmtend;  xfmt++)
     {
-        for ( ;  xfmt != xfmtend;  xfmt++)
-        {
-            // Specify the format we would like.
-            _glfwLibrary.X11.selection.request = *xfmt;
-
-            // Convert the selection into a format we would like.
-            XConvertSelection(_glfwLibrary.X11.display, *xcbrd,
-                *xfmt, None, window, CurrentTime);
-            XFlush(_glfwLibrary.X11.display);
+        // Specify the format we would like.
+        _glfwLibrary.X11.selection.request = *xfmt;
 
-            // Process pending events until we get a SelectionNotify.
-            while (!_glfwLibrary.X11.selection.converted)
-                _glfwPlatformWaitEvents();
+        // Convert the selection into a format we would like.
+        XConvertSelection(_glfwLibrary.X11.display,
+                          _glfwLibrary.X11.selection.atom,
+            *xfmt, None, window, CurrentTime);
+        XFlush(_glfwLibrary.X11.display);
 
-            // Successful?
-            if (_glfwLibrary.X11.selection.converted == 1)
-                break;
-        }
+        // Process pending events until we get a SelectionNotify.
+        while (!_glfwLibrary.X11.selection.converted)
+            _glfwPlatformWaitEvents();
 
         // Successful?
         if (_glfwLibrary.X11.selection.converted == 1)
-        {
-            _glfwLibrary.X11.selection.converted = 0;
             break;
-        }
     }
 
+    // Successful?
+    if (_glfwLibrary.X11.selection.converted == 1)
+        _glfwLibrary.X11.selection.converted = 0;
+
     // Unsuccessful conversion, bail with no clipboard data
     if (_glfwLibrary.X11.selection.converted)
     {

src/x11_init.c

@@ -456,13 +456,9 @@ static GLboolean initDisplay(void)
     // the keyboard mapping.
     updateKeyCodeLUT();
 
-    // Find or create clipboard atoms
-    _glfwLibrary.X11.selection.atoms.clipboard[_GLFW_CLIPBOARD_ATOM_PRIMARY] =
-        XA_PRIMARY;
-    _glfwLibrary.X11.selection.atoms.clipboard[_GLFW_CLIPBOARD_ATOM_CLIPBOARD] =
+    // Find or create clipboard atom
+    _glfwLibrary.X11.selection.atom =
         XInternAtom(_glfwLibrary.X11.display, "CLIPBOARD", False);
-    _glfwLibrary.X11.selection.atoms.clipboard[_GLFW_CLIPBOARD_ATOM_SECONDARY] =
-        XA_SECONDARY;
 
     // Find or create selection atoms
     _glfwLibrary.X11.selection.atoms.string[_GLFW_STRING_ATOM_UTF8] =

src/x11_platform.h

@@ -85,12 +85,6 @@
 #define _GLFW_PLATFORM_LIBRARY_STATE _GLFWlibraryX11 X11
 #define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextGLX GLX
 
-// Clipboard atoms
-#define _GLFW_CLIPBOARD_ATOM_PRIMARY 0
-#define _GLFW_CLIPBOARD_ATOM_CLIPBOARD 1
-#define _GLFW_CLIPBOARD_ATOM_SECONDARY 2
-#define _GLFW_CLIPBOARD_ATOM_COUNT 3
-
 // String atoms
 #define _GLFW_STRING_ATOM_UTF8 0
 #define _GLFW_STRING_ATOM_COMPOUND 1
@@ -236,8 +230,8 @@ typedef struct _GLFWlibraryX11
 
     // Selection data
     struct {
+        Atom atom;
         struct {
-            Atom clipboard[_GLFW_CLIPBOARD_ATOM_COUNT];
             Atom string[_GLFW_STRING_ATOM_COUNT];
         } atoms;
         struct {