Commit Graph

5 Commits

Author SHA1 Message Date
Levi Neely 553d2ca0ba Phase 80: eliminate all 43 if(!dpy) return guards via vtable dispatch
Remove every 'if (!dpy) return' guard from policy files by moving
X11 mechanism code behind WMBackend vtable slots. Call sites now
dispatch through wm_backend->slot(), the X11 backend implements the
mechanism, and the Wayland backend provides no-ops or Wayland-native
implementations.

New vtable slots added to backend.h:
- Frame: frame_alloc_border_pixel, frame_update_texture, frame_paint_button
- NETWM: netwm_init, netwm_cleanup, netwm_update_desktop,
  netwm_get_current_desktop, netwm_update_opacity, netwm_update_actions,
  netwm_check_client_hints, netwm_check_initial_state, netwm_get_pid,
  netwm_cleanup_frame_extents
- Properties: prop_get_protocols, prop_get_check_property,
  prop_set_wmaker_protocols, prop_set_icon_tile, prop_cleanup
- Client: client_restore, client_set_state, client_send_protocol,
  client_kill, client_get_colormap_windows
- Misc: eat_expose, move_window, slide_windows, get_text_selection,
  get_shortcut_string, get_command_for_window
- Icon: icon_update_pixmap, icon_paint
- AppIcon: appicon_show, appicon_paint, appicon_bounce
- Shutdown: restore_desktop, wipe_desktop
- Resources: get_color_for_colormap, free_color, colormap_install
- Protocol: xdnd_init, motif_get_hints
- Startup: manage_all_windows
- Event: event_handle_signal_exit

Structural changes:
- MWMHints moved from motif.c local typedef to motif.h
- WProtocols given struct tag for forward declaration
- Static functions made non-static: wGetTextSelection, wGetCommandForWindow,
  wGetMWMHints, wWipeDesktop, wManageAllWindows, wNETWMUpdateWindowOpacity

Verification: grep -rn 'if (!dpy)' src/*.c returns zero results.
nm wl_backend.o confirms no new X11 symbols in Wayland path.
2026-05-13 10:01:57 +02:00
Levi Neely 36aa1c5725 wayland: Phase 69 — WIN_WORKSPACE macro; safe workspace reads without frame
Add WIN_WORKSPACE(w) macro to window.h that returns frame->workspace
when the window has a frame (X11 path) or wwin->workspace when it does
not (Wayland path, set in Phase 67).

Replace all unsafe frame->workspace reads with WIN_WORKSPACE() in:
  - window.c:   wWindowObscuresWindow (workspace comparison + geometry),
                wWindowFocusPrev/Next (same-workspace filter),
                wWindowSaveState (state serialization)
  - session.c:  session save (workspace name lookup)
  - switchmenu.c: all five switch-menu workspace comparisons/lookups

Also guard wWindowObscuresWindow's frame->core width/height reads with
a ternary that falls back to client.{width,height} for frameless windows.

This eliminates the last class of NULL frame->workspace dereferences
reachable from workspace-switch, focus-cycle, session-save, and
switch-menu code paths.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-28 09:43:09 +01:00
Levi Neely e60dff8ffd wayland: Phase 67 — WWindow.workspace; safe workspace switching without frame
Add int workspace to WWindow so Wayland-managed windows (which have no
WFrameWindow and therefore no frame->workspace slot) can track their
workspace assignment.  Set wwin->workspace = workspace in the Wayland
branch of wManageWindow alongside the existing geometry recording.

Guard wWorkspaceForceChange against NULL frame dereferences: introduce a
tmp_workspace local that falls back to tmp->workspace when frame is NULL,
and protect the omnipresent workspace assignment the same way.  Also add
a NULL guard for tmp->icon->core in the miniwindow-unmap path.

This prevents NULL dereferences if workspace switching is triggered
(e.g., via a root-menu action) while Wayland windows are managed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-28 09:38:07 +01:00
Levi Neely a486329b52 Wayland backend abstraction: WMBackend vtable (Phases 0–30)
Introduce a display-system-agnostic WMBackend vtable that routes all
display operations through function pointers, making the WM policy
layer independent of X11.  The X11 implementation is preserved in
src/backend/x11/ and behaviour is unchanged.

Key structural changes
──────────────────────
• src/backend/backend_types.h — backend-neutral type definitions:
    WNativeWindow, WKeyCode, WContextKey, WBackendScreen,
    WBackendEvent (+typed fields), WNormalHints, WWMHints,
    WNETWindowType, WHeadGeometry, WClientAttributes, WClientVisual,
    WSegment, WPoint, WM_KEY_* keysym constants, WA_* atom IDs,
    WKB_GROUP*_INDEX, WCUR_NONE

• src/backend/backend.h — WMBackend vtable (~100 function-pointer
    slots) covering: frame/context lifecycle, stacking, focus, grabs,
    pointer, keyboard, overlays, properties, ICCCM, EWMH/NETWM,
    monitors, screen setup, cursors, extensions, error handlers.
    No <X11/> headers remain in this file after Phase 30.

• src/backend/x11/ — X11 backend implementation:
    x11_backend.c  full vtable; all display calls confined here
    x11_props.c    WM_NORMAL_HINTS / WM_HINTS translation
    x11_event.c    XEvent → WBackendEvent translation
    x11_monitor.c  Xinerama / RandR monitor query

Policy files cleaned
────────────────────
All 47 files in WM_POLICY_CLEAN_FILES pass check-no-x11-policy
(no direct #include <X11/> anywhere).  X11 types that still appear
in policy structs (Visual*, Colormap, Window, Atom …) arrive only
transitively via WINGs.h; the vtable boundary itself is X11-free.

Tests
─────
• tests/smoke-test.sh — full Xvfb lifecycle test (PASS)
• tests/test_geom.c   — geometry / constraint unit tests
• tests/test_x11_event.c — WBackendEvent field extraction tests

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-27 19:20:00 +01:00
Levi Neely fcee811b99 WindowMaker 0.96.0 upstream source 2026-03-26 15:38:49 +01:00