Add a command line switch to set the name part of WM_CLASS independently

CHANGELOG.rst

@@ -36,6 +36,9 @@ version 0.5.1 [2017-12-01]
 
 - Add an option to control the audio bell volume on X11 systems
 
+- Add a command line switch to set the name part of the WM_CLASS window
+  property independently.
+
 
 version 0.5.0 [2017-11-19]
 ---------------------------

glfw/glfw3.h

@@ -2343,7 +2343,12 @@ GLFWAPI void glfwWindowHint(int hint, int value);
  *  @remark @x11 The name and class of the `WM_CLASS` window property will by
  *  default be set to the window title passed to this function.  Set the @ref
  *  GLFW_X11_WM_CLASS_NAME and @ref GLFW_X11_WM_CLASS_CLASS init hints before
- *  initialization to override this.
+ *  initialization to override this. You can also set the title int he following
+ *  special format, which allows setting the two parts of the WM_CLASS property
+ *  and the window title independently:
+ *  <01> WM_CLASS name <30> WM_CLASS class <30> title
+ *  Here <01> refers to the byte value 01 (ASCII start-of-header) and <30> refers
+ *  to the byte value 30 (ASCII record separator).
  *
  *  @remark @wayland The window frame is currently unimplemented, as if
  *  [GLFW_DECORATED](@ref GLFW_DECORATED_hint) was always set to `GLFW_FALSE`.

glfw/x11_window.c

@@ -703,9 +703,11 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
 
     updateNormalHints(window, wndconfig->width, wndconfig->height);
 
-    // Set ICCCM WM_CLASS property
+    // Set ICCCM WM_CLASS property and window title
     {
         XClassHint* hint = XAllocClassHint();
+        char *wm_cclass = NULL, *wm_cname = NULL;
+        const char *real_title = wndconfig->title;
 
         if (strlen(_glfw.hints.init.x11.className) &&
             strlen(_glfw.hints.init.x11.classClass))
@@ -713,10 +715,26 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
             hint->res_name = (char*) _glfw.hints.init.x11.className;
             hint->res_class = (char*) _glfw.hints.init.x11.classClass;
         }
-        else if (strlen(wndconfig->title))
+        else if (strlen(real_title))
         {
-            hint->res_name = (char*) wndconfig->title;
-            hint->res_class = (char*) wndconfig->title;
+            if (*real_title == 1) {
+                char *p = strchr(real_title, 30);
+                if (p && p > real_title + 1) {
+                    wm_cname = calloc(p - real_title + 1, 1);
+                    if (wm_cname) memcpy(wm_cname, real_title + 1, p - real_title - 1);
+                    hint->res_name = wm_cname;
+                    char *q = strchr(p + 1, 30);
+                    if (q && q > p + 1) {
+                        wm_cclass = calloc(q - p + 1, 1);
+                        if (wm_cclass) memcpy(wm_cclass, p + 1, q - p - 1);
+                        hint->res_class = wm_cclass;
+                        real_title = q + 1;
+                    }
+                }
+            } else {
+                hint->res_name = (char*) real_title;
+                hint->res_class = (char*) real_title;
+            }
         }
         else
         {
@@ -726,6 +744,8 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
 
         XSetClassHint(_glfw.x11.display, window->x11.handle, hint);
         XFree(hint);
+        free(wm_cclass); free(wm_cname);
+        _glfwPlatformSetWindowTitle(window, real_title);
     }
 
     // Announce support for Xdnd (drag and drop)
@@ -736,7 +756,6 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
                         PropModeReplace, (unsigned char*) &version, 1);
     }
 
-    _glfwPlatformSetWindowTitle(window, wndconfig->title);
 
     if (_glfw.x11.im)
     {

kitty/boss.py

@@ -19,8 +19,9 @@ from .keys import get_key_map, get_shortcut
 from .session import create_session
 from .tabs import SpecialWindow, TabManager
 from .utils import (
-    end_startup_notification, get_primary_selection, init_startup_notification,
-    open_url, safe_print, set_primary_selection, single_instance
+    encode_wm_class, end_startup_notification, get_primary_selection,
+    init_startup_notification, open_url, safe_print, set_primary_selection,
+    single_instance
 )
 
 
@@ -78,10 +79,10 @@ class Boss:
         startup_session = create_session(opts, args)
         self.add_os_window(startup_session, os_window_id=os_window_id)
 
-    def add_os_window(self, startup_session, os_window_id=None, wclass=None, size=None, visible=True):
+    def add_os_window(self, startup_session, os_window_id=None, wclass=None, wname=None, size=None, visible=True):
         if os_window_id is None:
             w, h = initial_window_size(self.opts) if size is None else size
-            os_window_id = create_os_window(w, h, wclass or self.args.cls, visible)
+            os_window_id = create_os_window(w, h, encode_wm_class(wname or self.args.name, wclass or self.args.cls), visible)
         tm = TabManager(os_window_id, self.opts, self.args, startup_session)
         self.os_window_map[os_window_id] = tm
         return os_window_id
@@ -103,7 +104,7 @@ class Boss:
             args = option_parser().parse_args(msg['args'][1:])
             opts = create_opts(args)
             session = create_session(opts, args)
-            os_window_id = self.add_os_window(session, wclass=args.cls, size=initial_window_size(opts))
+            os_window_id = self.add_os_window(session, wclass=args.cls, wname=args.name, size=initial_window_size(opts))
             if startup_id:
                 ctx = init_startup_notification(os_window_id, startup_id)
                 end_startup_notification(ctx)

kitty/cli.py

@@ -20,7 +20,13 @@ def option_parser():
         '--class',
         default=appname,
         dest='cls',
-        help=_('Set the WM_CLASS property')
+        help=_('Set the class part of the WM_CLASS property')
+    )
+    a(
+        '--name',
+        default=None,
+        dest='name',
+        help=_('Set the name part of the WM_CLASS property (defaults to using the value from {})').format('--class')
     )
     a(
         '--config',

kitty/glfw.c

@@ -402,15 +402,6 @@ glfw_window_hint(PyObject UNUSED *self, PyObject *args) {
     Py_RETURN_NONE;
 }
 
-PyObject*
-glfw_init_hint_string(PyObject UNUSED *self, PyObject *args) {
-    int hint_id;
-    char *hint;
-    if (!PyArg_ParseTuple(args, "is", &hint_id, &hint)) return NULL;
-    glfwInitHintString(hint_id, hint);
-    Py_RETURN_NONE;
-}
-
 
 // }}}
 
@@ -694,7 +685,6 @@ static PyMethodDef module_methods[] = {
     {"glfw_post_empty_event", (PyCFunction)glfw_post_empty_event, METH_NOARGS, ""}, 
     {"glfw_get_physical_dpi", (PyCFunction)glfw_get_physical_dpi, METH_NOARGS, ""}, 
     {"glfw_get_key_name", (PyCFunction)glfw_get_key_name, METH_VARARGS, ""}, 
-    {"glfw_init_hint_string", (PyCFunction)glfw_init_hint_string, METH_VARARGS, ""}, 
     {"glfw_primary_monitor_size", (PyCFunction)primary_monitor_size, METH_NOARGS, ""}, 
     {"glfw_primary_monitor_content_scale", (PyCFunction)primary_monitor_content_scale, METH_NOARGS, ""}, 
     {NULL, NULL, 0, NULL}        /* Sentinel */

kitty/main.py

@@ -14,13 +14,13 @@ from .cli import create_opts, option_parser
 from .config import initial_window_size, load_cached_values, save_cached_values
 from .constants import isosx, iswayland, logo_data_file
 from .fast_data_types import (
-    change_wcwidth, create_os_window, glfw_init, glfw_init_hint_string,
-    glfw_terminate, install_sigchld_handler, set_default_window_icon,
-    set_logical_dpi, set_options, GLFW_X11_WM_CLASS_NAME, GLFW_X11_WM_CLASS_CLASS
+    change_wcwidth, create_os_window, glfw_init, glfw_terminate,
+    install_sigchld_handler, set_default_window_icon, set_logical_dpi,
+    set_options
 )
 from .fonts.box_drawing import set_scale
 from .utils import (
-    detach, end_startup_notification, get_logical_dpi,
+    detach, encode_wm_class, end_startup_notification, get_logical_dpi,
     init_startup_notification, single_instance
 )
 from .window import load_shader_programs
@@ -45,7 +45,7 @@ def run_app(opts, args):
     set_options(opts, iswayland, args.debug_gl)
     load_cached_values()
     w, h = initial_window_size(opts)
-    window_id = create_os_window(w, h, args.cls, True, load_all_shaders)
+    window_id = create_os_window(w, h, encode_wm_class(args.name, args.cls), True, load_all_shaders)
     startup_ctx = init_startup_notification(window_id)
     if not iswayland and not isosx:  # no window icons on wayland
         with open(logo_data_file, 'rb') as f:
@@ -137,10 +137,7 @@ def main():
             return
     opts = create_opts(args)
     change_wcwidth(not opts.use_system_wcwidth)
-    glfw_module = init_graphics()
-    if glfw_module == 'x11':
-        glfw_init_hint_string(GLFW_X11_WM_CLASS_CLASS, args.cls)
-        glfw_init_hint_string(GLFW_X11_WM_CLASS_NAME, args.cls)
+    init_graphics()
     try:
         with setup_profiling(args):
             # Avoid needing to launch threads to reap zombies

kitty/utils.py

@@ -291,3 +291,9 @@ def single_instance(group_id=None):
     s.set_inheritable(False)
     atexit.register(remove_socket_file, s)
     return True
+
+
+def encode_wm_class(name, cls, title=appname):
+    if isosx:
+        return title
+    return '\x01' + (name or cls) + '\x1e' + cls + '\x1e' + title