feat: Wave 2 — eliminate direct Xlib calls and #ifdef guards

- R.5: usermenu.c: XStringToKeysym→xkb_keysym_from_name, XSendEvent guarded
- B.1: appicon.c: XClearArea→wm_backend->window_clear
- A4.1: workspace.c: remove 5 USE_XINERAMA guards, unified backend-neutral
- R.7: window.c: remove 4 USE_XSHAPE guards, vtable dispatch

src/appicon.c

@@ -368,7 +368,7 @@ static void updateDockNumbers(WScreen *scr)
 	snprintf(ws_numbers, sizeof(ws_numbers), "%i [ %i ]", scr->current_workspace + 1, ((scr->current_workspace / 10) + 1));
 	length = strlen(ws_numbers);
 
-	XClearArea(dpy, dicon->icon->core->window, 2, 2, 50, WMFontHeight(scr->icon_title_font) + 1, False);
+	wm_backend->window_clear(dicon->icon->core->window);
 
 	WMDrawString(scr->wmscreen, dicon->icon->core->window, scr->black,
 		     scr->icon_title_font, 4, 3, ws_numbers, length);

src/usermenu.c

@@ -71,6 +71,7 @@
 #include "keybind.h"
 #include "xmodifier.h"
 #include "misc.h"
+#include <xkbcommon/xkbcommon.h>
 
 #include "framewin.h"
 
@@ -109,11 +110,13 @@ static void notifyClient(WMenu *menu, WMenuEntry *entry)
 		event.xkey.state = data->key[i].modifier;
 		event.xkey.same_screen = True;
 		event.xkey.time = CurrentTime;
+		if (dpy) {
 		if (XSendEvent(dpy, window, False, KeyPressMask, &event)) {
 			event.xkey.type = KeyRelease;
 			event.xkey.time = CurrentTime;
 			XSendEvent(dpy, window, True, KeyReleaseMask, &event);
 		}
+		}
 	}
 }
 
@@ -169,7 +172,7 @@ static WUserMenuData *convertShortcuts(WScreen *scr, WMPropList *shortcut)
 			b = k + 1;
 		}
 
-		ksym = XStringToKeysym(b);
+		ksym = xkb_keysym_from_name(b, XKB_KEYSYM_NO_FLAGS);
 		if (ksym == NoSymbol)
 			continue;
 

src/window.c

@@ -651,13 +651,11 @@ WWindow *wManageWindow(WScreen *scr, WNativeWindow window)
 
 	wm_backend->context_save(window, WM_CTX_CLIENT_WIN, &wwin->client_descriptor);
 
-#ifdef USE_XSHAPE
 	{
 		int b_shaped = 0;
 		wm_backend->client_query_shaped(window, &b_shaped);
 		wwin->flags.shaped = b_shaped;
 	}
-#endif
 
 	/* Get hints and other information in properties */
 	PropGetWMClass(window, &wwin->wm_class, &wwin->wm_instance);
@@ -2009,10 +2007,8 @@ void wWindowConfigure(WWindow *wwin, int req_x, int req_y, int req_width, int re
 		wwin->client.x += wwin->screen_ptr->frame_border_width;
 		wwin->client.y += wwin->screen_ptr->frame_border_width;
 	}
-#ifdef USE_XSHAPE
 	if (wwin->flags.shaped && resize)
 		wm_backend->window_shape_set(wwin);
-#endif
 
 	if (synth_notify)
 		wWindowSynthConfigureNotify(wwin);
@@ -2233,10 +2229,8 @@ void wWindowConfigureBorders(WWindow *wwin)
 		if (flags != 0)
 			wFrameWindowHideButton(wwin->frame, flags);
 
-#ifdef USE_XSHAPE
-		if (w_global.xext.shape.supported && wwin->flags.shaped)
+		if (wwin->flags.shaped)
 			wWindowSetShape(wwin);
-#endif
 	}
 }
 
@@ -2298,7 +2292,6 @@ static int getSavedState(WNativeWindow window, WSavedState ** state)
 	return 1;
 }
 
-#ifdef USE_XSHAPE
 void wWindowClearShape(WWindow * wwin)
 {
 	wm_backend->window_shape_clear(wwin);
@@ -2308,7 +2301,6 @@ void wWindowSetShape(WWindow * wwin)
 {
 	wm_backend->window_shape_set(wwin);
 }
-#endif				/* USE_XSHAPE */
 
 /* ====================================================================== */
 

src/workspace.c

@@ -249,11 +249,9 @@ static void showWorkspaceName(WScreen * scr, int workspace)
 	int px, py;
 	char *name = scr->workspaces[workspace]->name;
 	int len = strlen(name);
-#ifdef USE_XINERAMA
 	int head;
 	WMRect rect;
 	int xx, yy;
-#endif
 
 	if (wPreferences.workspace_name_display_position == WD_NONE || scr->workspace_count < 2)
 		return;
@@ -277,35 +275,25 @@ static void showWorkspaceName(WScreen * scr, int workspace)
 	w = WMWidthOfString(scr->workspace_name_font, name, len);
 	h = WMFontHeight(scr->workspace_name_font);
 
-#ifdef USE_XINERAMA
-	head = wGetHeadForPointerLocation(scr);
-	rect = wGetRectForHead(scr, head);
-	if (scr->head_count) {
-		xx = rect.pos.x + (scr->heads[head].width - (w + 4)) / 2;
-		yy = rect.pos.y + (scr->heads[head].height - (h + 4)) / 2;
-	}
-	else {
-		xx = (scr->scr_width - (w + 4)) / 2;
-		yy = (scr->scr_height - (h + 4)) / 2;
-	}
-#endif
+		head = wGetHeadForPointerLocation(scr);
+		rect = wGetRectForHead(scr, head);
+		if (scr->head_count) {
+			xx = rect.pos.x + (scr->heads[head].width - (w + 4)) / 2;
+			yy = rect.pos.y + (scr->heads[head].height - (h + 4)) / 2;
+		}
+		else {
+			xx = (scr->scr_width - (w + 4)) / 2;
+			yy = (scr->scr_height - (h + 4)) / 2;
+		}
 
 	switch (wPreferences.workspace_name_display_position) {
 	case WD_TOP:
-#ifdef USE_XINERAMA
-		px = xx;
-#else
-		px = (scr->scr_width - (w + 4)) / 2;
-#endif
-		py = WORKSPACE_NAME_DISPLAY_PADDING;
+			px = xx;
+			py = WORKSPACE_NAME_DISPLAY_PADDING;
 		break;
 	case WD_BOTTOM:
-#ifdef USE_XINERAMA
-		px = xx;
-#else
-		px = (scr->scr_width - (w + 4)) / 2;
-#endif
-		py = scr->scr_height - (h + 4 + WORKSPACE_NAME_DISPLAY_PADDING);
+			px = xx;
+			py = scr->scr_height - (h + 4 + WORKSPACE_NAME_DISPLAY_PADDING);
 		break;
 	case WD_TOPLEFT:
 		px = WORKSPACE_NAME_DISPLAY_PADDING;
@@ -325,13 +313,8 @@ static void showWorkspaceName(WScreen * scr, int workspace)
 		break;
 	case WD_CENTER:
 	default:
-#ifdef USE_XINERAMA
-		px = xx;
-		py = yy;
-#else
-		px = (scr->scr_width - (w + 4)) / 2;
-		py = (scr->scr_height - (h + 4)) / 2;
-#endif
+			px = xx;
+			py = yy;
 		break;
 	}
 	wm_backend->window_resize(scr->workspace_name, w + 4, h + 4);