On X11, try alternative cursor icon names as well

This should cover more icons.

CHANGELOG.md

@@ -11,6 +11,7 @@ Unreleased` header.
 
 # Unreleased
 
+- On X11, check common alternative cursor names when loading cursor.
 - On Windows, fix so `drag_window` and `drag_resize_window` can be called from another thread.
 
 # 0.29.3

Cargo.toml

@@ -54,7 +54,7 @@ cfg_aliases = "0.1.1"
 
 [dependencies]
 bitflags = "2"
-cursor-icon = "1.0.0"
+cursor-icon = "1.1.0"
 log = "0.4"
 mint = { version = "0.5.6", optional = true }
 once_cell = "1.12"

src/platform_impl/linux/x11/util/cursor.rs

@@ -1,4 +1,5 @@
 use std::ffi::CString;
+use std::iter;
 
 use x11rb::connection::Connection;
 
@@ -56,10 +57,22 @@ impl XConnection {
             None => return self.create_empty_cursor(),
         };
 
-        let name = CString::new(cursor.name()).unwrap();
+        let mut xcursor = 0;
-        unsafe {
+        for &name in iter::once(&cursor.name()).chain(cursor.alt_names().iter()) {
-            (self.xcursor.XcursorLibraryLoadCursor)(self.display, name.as_ptr() as *const c_char)
+            let name = CString::new(name).unwrap();
+            xcursor = unsafe {
+                (self.xcursor.XcursorLibraryLoadCursor)(
+                    self.display,
+                    name.as_ptr() as *const c_char,
+                )
+            };
+
+            if xcursor != 0 {
+                break;
+            }
         }
+
+        xcursor
     }
 
     fn update_cursor(&self, window: xproto::Window, cursor: ffi::Cursor) -> Result<(), X11Error> {