feat(core+backend/X11): 实现窗口边框管理和焦点跟随鼠标

src/backend/x11/backend.c

@@ -21,6 +21,7 @@
 #include "base/log.h"
 #include "base/macros.h"
 #include "base/memory.h"
+#include "base/window_list.h"
 #include "core/plan.h"
 #include "core/types.h"
 #include "internal.h"
@@ -177,14 +178,9 @@ void backend_destroy(backend_t *backend) {
   p_delete(&backend->config_list.cfgs);
   p_clear(&backend->config_list, 1);
 
-  p_delete(&backend->unmap.windows);
-  p_clear(&backend->unmap, 1);
-
-  p_delete(&backend->map.windows);
-  p_clear(&backend->map, 1);
-
-  p_delete(&backend->kill.windows);
-  p_clear(&backend->kill, 1);
+  window_list_cleanup(&backend->unmap);
+  window_list_cleanup(&backend->map);
+  window_list_cleanup(&backend->kill);
 
   xcb_key_symbols_free(backend->key_symbols);
   backend->key_symbols = nullptr;

src/backend/x11/event.c

@@ -264,6 +264,17 @@ static bool handle_key_press(
   return true;
 }
 
+static bool handle_enter_notify(
+  backend_t *backend,
+  event_t *event,
+  const xcb_enter_notify_event_t *xcb_event
+) {
+  event->type                    = ZDWM_EVENT_POINTER_ENTER;
+  event->as.pointer_enter.window = xcb_event->event;
+
+  return true;
+}
+
 bool backend_next_event(backend_t *backend, event_t *event) {
   if (!backend || !backend->conn || !event) return false;
 
@@ -289,6 +300,7 @@ bool backend_next_event(backend_t *backend, event_t *event) {
       EVENT(XCB_DESTROY_NOTIFY, handle_destroy_notify);
       EVENT(XCB_CONFIGURE_REQUEST, handle_configure_request);
       EVENT(XCB_KEY_PRESS, handle_key_press);
+      EVENT(XCB_ENTER_NOTIFY, handle_enter_notify);
 
 #undef EVENT
 

src/backend/x11/internal.h

@@ -6,6 +6,8 @@
 #include <xcb/xcb_keysyms.h>
 #include <xcb/xproto.h>
 
+#include "base/window_list.h"
+
 #define ATOM_LIST(X)                   \
   X(COMPOUND_TEXT)                     \
   X(UTF8_STRING)                       \
@@ -70,12 +72,6 @@ typedef struct window_configure_list_t {
   size_t capacity;
 } window_configure_list_t;
 
-typedef struct window_list_t {
-  xcb_window_t *windows;
-  size_t count;
-  size_t capacity;
-} window_list_t;
-
 struct backend_t {
   xcb_key_symbols_t *key_symbols;
   xcb_connection_t *conn;

src/backend/x11/window.c

@@ -7,7 +7,6 @@
 #include <xcb/xcb_keysyms.h>
 #include <xcb/xproto.h>
 
-#include "base/array.h"
 #include "base/macros.h"
 #include "base/memory.h"
 #include "core/backend.h"
@@ -358,17 +357,6 @@ void window_set_net_wm_state(
   );
 }
 
-void window_list_push(window_list_t *window_list, xcb_window_t window) {
-  xcb_window_t *win =
-    array_push(window_list->windows, window_list->count, window_list->capacity);
-  *win = window;
-}
-
-void window_list_reset(window_list_t *window_list) {
-  p_clear(window_list->windows, window_list->count);
-  window_list->count = 0;
-}
-
 static uint16_t get_xcb_modifier(modifier_mask_t modifiers) {
   typedef struct modifier_map_t {
     modifier_bit_t modifier;

src/backend/x11/window.h

@@ -97,9 +97,6 @@ void window_set_net_wm_state(
   xcb_atom_t *atoms
 );
 
-void window_list_push(window_list_t *window_list, xcb_window_t window);
-void window_list_reset(window_list_t *window_list);
-
 void window_grab_keys(
   backend_t *backend,
   xcb_window_t window,