mangowm · DreamMaoMao · Feb 19, 2026 · Feb 19, 2026 · Feb 19, 2026 · Feb 19, 2026
diff --git a/src/animation/client.h b/src/animation/client.h
@@ -350,6 +350,22 @@ void client_draw_shadow(Client *c) {
 	wlr_scene_shadow_set_clipped_region(c->shadow, clipped_region);
 }
 
+void apply_shield(Client *c, struct wlr_box clip_box) {
+	if (active_capture_count > 0 && c->shield_when_capture) {
+		wlr_scene_node_raise_to_top(&c->shield->node);
+		wlr_scene_node_set_position(&c->shield->node, clip_box.x, clip_box.y);
+		wlr_scene_rect_set_size(c->shield, clip_box.width, clip_box.height);
+		wlr_scene_node_set_enabled(&c->shield->node, true);
+	} else {
+		if (c->shield->node.enabled) {
+			wlr_scene_node_lower_to_bottom(&c->shield->node);
+			wlr_scene_rect_set_size(c->shield, c->animation.current.width,
+									c->animation.current.height);
+			wlr_scene_node_set_enabled(&c->shield->node, false);
+		}
+	}
+}
+
 void apply_border(Client *c) {
 	if (!c || c->iskilling || !client_surface(c)->mapped)
 		return;
@@ -540,6 +556,7 @@ void client_apply_clip(Client *c, float factor) {
 			return;
 		}
 
+		apply_shield(c, clip_box);
 		wlr_scene_subsurface_tree_set_clip(&c->scene_surface->node, &clip_box);
 		buffer_set_effect(c, (BufferData){1.0f, 1.0f, clip_box.width,
 										  clip_box.height,
@@ -588,6 +605,7 @@ void client_apply_clip(Client *c, float factor) {
 	}
 
 	// 应用窗口表面剪切
+	apply_shield(c, clip_box);
 	wlr_scene_subsurface_tree_set_clip(&c->scene_surface->node, &clip_box);
 
 	// 获取剪切后的表面的实际大小用于计算缩放
@@ -765,6 +783,10 @@ void init_fadeout_client(Client *c) {
 		return;
 	}
 
+	if (c->shield_when_capture && active_capture_count > 0) {
+		return;
+	}
+
 	if ((c->animation_type_close &&
 		 strcmp(c->animation_type_close, "none") == 0) ||
 		(!c->animation_type_close &&
@@ -1004,6 +1026,7 @@ void resize(Client *c, struct wlr_box geo, int32_t interact) {
 		client_draw_shadow(c);
 		apply_border(c);
 		client_get_clip(c, &clip);
+		apply_shield(c, clip);
 		wlr_scene_subsurface_tree_set_clip(&c->scene_surface->node, &clip);
 		return;
 	}

diff --git a/src/config/parse_config.h b/src/config/parse_config.h
@@ -74,6 +74,7 @@ typedef struct {
 	int32_t isunglobal;
 	int32_t isglobal;
 	int32_t isoverlay;
+	int32_t shield_when_capture;
 	int32_t allow_shortcuts_inhibit;
 	int32_t ignore_maximize;
 	int32_t ignore_minimize;
@@ -2040,6 +2041,7 @@ bool parse_option(Config *config, char *key, char *value) {
 		rule->isunglobal = -1;
 		rule->isglobal = -1;
 		rule->isoverlay = -1;
+		rule->shield_when_capture = -1;
 		rule->allow_shortcuts_inhibit = -1;
 		rule->ignore_maximize = -1;
 		rule->ignore_minimize = -1;
@@ -2147,6 +2149,8 @@ bool parse_option(Config *config, char *key, char *value) {
 					rule->focused_opacity = atof(val);
 				} else if (strcmp(key, "isoverlay") == 0) {
 					rule->isoverlay = atoi(val);
+				} else if (strcmp(key, "shield_when_capture") == 0) {
+					rule->shield_when_capture = atoi(val);
 				} else if (strcmp(key, "allow_shortcuts_inhibit") == 0) {
 					rule->allow_shortcuts_inhibit = atoi(val);
 				} else if (strcmp(key, "ignore_maximize") == 0) {

diff --git a/src/mango.c b/src/mango.c
@@ -315,6 +315,7 @@ struct Client {
 	struct wlr_scene_tree *scene;
 	struct wlr_scene_rect *border; /* top, bottom, left, right */
 	struct wlr_scene_shadow *shadow;
+	struct wlr_scene_rect *shield;
 	struct wlr_scene_tree *scene_surface;
 	struct wl_list link;
 	struct wl_list flink;
@@ -381,6 +382,7 @@ struct Client {
 	int32_t iskilling;
 	int32_t istagswitching;
 	int32_t isnamedscratchpad;
+	int32_t shield_when_capture;
 	bool is_pending_open_animation;
 	bool is_restoring_from_ov;
 	float scroller_proportion;
@@ -555,6 +557,11 @@ typedef struct {
 	struct wl_listener destroy;
 } SessionLock;
 
+struct capture_session_tracker {
+	struct wl_listener session_destroy;
+	struct wlr_ext_image_copy_capture_session_v1 *session;
+};
+
 /* function declarations */
 static void applybounds(
 	Client *c,
@@ -798,6 +805,9 @@ static Client *get_focused_stack_client(Client *sc);
 static bool client_is_in_same_stack(Client *sc, Client *tc, Client *fc);
 static void monitor_stop_skip_frame_timer(Monitor *m);
 static int monitor_skip_frame_timeout_callback(void *data);
+static void handle_iamge_copy_capture_new_session(struct wl_listener *listener,
+												  void *data);
+
 static Monitor *get_monitor_nearest_to(int32_t lx, int32_t ly);
 static bool match_monitor_spec(char *spec, Monitor *m);
 static void last_cursor_surface_destroy(struct wl_listener *listener,
@@ -842,6 +852,7 @@ static struct wlr_keyboard_shortcuts_inhibit_manager_v1
 	*keyboard_shortcuts_inhibit;
 static struct wlr_virtual_pointer_manager_v1 *virtual_pointer_mgr;
 static struct wlr_output_power_manager_v1 *power_mgr;
+static struct wlr_ext_image_copy_capture_manager_v1 *ext_image_copy_capture_mgr;
 static struct wlr_pointer_gestures_v1 *pointer_gestures;
 static struct wlr_drm_lease_v1_manager *drm_lease_manager;
 struct mango_print_status_manager *print_status_manager;
@@ -906,6 +917,7 @@ static struct wl_event_source *keep_idle_inhibit_source;
 static bool cursor_hidden = false;
 static bool tag_combo = false;
 static const char *cli_config_path = NULL;
+static int active_capture_count = 0;
 static bool cli_debug_log = false;
 static KeyMode keymode = {
 	.mode = {'d', 'e', 'f', 'a', 'u', 'l', 't', '\0'},
@@ -962,6 +974,8 @@ static struct wl_listener output_mgr_apply = {.notify = outputmgrapply};
 static struct wl_listener output_mgr_test = {.notify = outputmgrtest};
 static struct wl_listener output_power_mgr_set_mode = {.notify =
 														   powermgrsetmode};
+static struct wl_listener ext_image_copy_capture_mgr_new_session = {
+	.notify = handle_iamge_copy_capture_new_session};
 static struct wl_listener request_activate = {.notify = urgent};
 static struct wl_listener request_cursor = {.notify = setcursor};
 static struct wl_listener request_set_psel = {.notify = setpsel};
@@ -1339,6 +1353,7 @@ static void apply_rule_properties(Client *c, const ConfigWinRule *r) {
 	APPLY_INT_PROP(c, r, isnamedscratchpad);
 	APPLY_INT_PROP(c, r, isglobal);
 	APPLY_INT_PROP(c, r, isoverlay);
+	APPLY_INT_PROP(c, r, shield_when_capture);
 	APPLY_INT_PROP(c, r, ignore_maximize);
 	APPLY_INT_PROP(c, r, ignore_minimize);
 	APPLY_INT_PROP(c, r, isnosizehint);
@@ -4135,6 +4150,13 @@ mapnotify(struct wl_listener *listener, void *data) {
 	wlr_scene_node_lower_to_bottom(&c->shadow->node);
 	wlr_scene_node_set_enabled(&c->shadow->node, true);
 
+
+	c->shield = wlr_scene_rect_create(c->scene_surface, 0, 0,
+									  (float[4]){0, 0, 0, 0xff});
+	c->shield->node.data = c;
+	wlr_scene_node_lower_to_bottom(&c->shield->node);
+	wlr_scene_node_set_enabled(&c->shield->node, false);
+
 	if (config.new_is_master && selmon && !is_scroller_layout(selmon))
 		// tile at the top
 		wl_list_insert(&clients, &c->link); // 新窗口是master,头部入栈
@@ -4544,6 +4566,53 @@ void pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
 // 修改printstatus函数，接受掩码参数
 void printstatus(void) { wl_signal_emit(&mango_print_status, NULL); }
 
+// 会话销毁时的回调
+void handle_session_destroy(struct wl_listener *listener, void *data) {
+	struct capture_session_tracker *tracker =
+		wl_container_of(listener, tracker, session_destroy);
+	active_capture_count--;
+	wl_list_remove(&tracker->session_destroy.link);
+
+	Client *c = NULL;
+	wl_list_for_each(c, &clients, link) {
+		if (c->shield_when_capture && !c->iskilling && VISIBLEON(c, c->mon)) {
+			arrange(c->mon, false, false);
+		}
+	}
+
+	wlr_log(WLR_DEBUG, "Capture session ended, active count: %d",
+			active_capture_count);
+	free(tracker);
+}
+
+// 新会话创建时的回调
+void handle_iamge_copy_capture_new_session(struct wl_listener *listener,
+										   void *data) {
+	struct wlr_ext_image_copy_capture_session_v1 *session = data;
+
+	struct capture_session_tracker *tracker = calloc(1, sizeof(*tracker));
+	if (!tracker) {
+		wlr_log(WLR_ERROR, "Failed to allocate capture session tracker");
+		return;
+	}
+	tracker->session = session;
+	tracker->session_destroy.notify = handle_session_destroy;
+	// 监听会话的 destroy 信号，以便在会话结束时减少计数
+	wl_signal_add(&session->events.destroy, &tracker->session_destroy);
+
+	active_capture_count++;
+
+	Client *c = NULL;
+	wl_list_for_each(c, &clients, link) {
+		if (c->shield_when_capture && !c->iskilling && VISIBLEON(c, c->mon)) {
+			arrange(c->mon, false, false);
+		}
+	}
+
+	wlr_log(WLR_DEBUG, "New capture session started, active count: %d",
+			active_capture_count);
+}
+
 void powermgrsetmode(struct wl_listener *listener, void *data) {
 	struct wlr_output_power_v1_set_mode_event *event = data;
 	struct wlr_output_state state = {0};
@@ -5547,7 +5616,6 @@ void setup(void) {
 	compositor = wlr_compositor_create(dpy, 6, drw);
 	wlr_export_dmabuf_manager_v1_create(dpy);
 	wlr_screencopy_manager_v1_create(dpy);
-	wlr_ext_image_copy_capture_manager_v1_create(dpy, 1);
 	wlr_ext_output_image_capture_source_manager_v1_create(dpy, 1);
 	wlr_data_control_manager_v1_create(dpy);
 	wlr_data_device_manager_create(dpy);
@@ -5564,6 +5632,11 @@ void setup(void) {
 	wl_signal_init(&mango_print_status);
 	wl_signal_add(&mango_print_status, &print_status_listener);
 
+	ext_image_copy_capture_mgr =
+		wlr_ext_image_copy_capture_manager_v1_create(dpy, 1);
+	wl_signal_add(&ext_image_copy_capture_mgr->events.new_session,
+				  &ext_image_copy_capture_mgr_new_session);
+
 	/* Initializes the interface used to implement urgency hints */
 	activation = wlr_xdg_activation_v1_create(dpy);
 	wl_signal_add(&activation->events.request_activate, &request_activate);