feat: add scroller stack support

src/config/parse_config.h

@@ -1080,6 +1080,9 @@ FuncType parse_func_name(char *func_name, Arg *arg, char *arg_value,
 	} else if (strcmp(func_name, "toggle_monitor") == 0) {
 		func = toggle_monitor;
 		(*arg).v = strdup(arg_value);
+	} else if (strcmp(func_name, "scroller_stack") == 0) {
+		func = scroller_stack;
+		(*arg).i = parse_direction(arg_value);
 	} else {
 		return NULL;
 	}

src/dispatch/bind_declare.h

@@ -68,4 +68,5 @@ int32_t toggle_trackpad_enable(const Arg *arg);
 int32_t setoption(const Arg *arg);
 int32_t disable_monitor(const Arg *arg);
 int32_t enable_monitor(const Arg *arg);
-int32_t toggle_monitor(const Arg *arg);
+int32_t toggle_monitor(const Arg *arg);
+int32_t scroller_stack(const Arg *arg);

src/dispatch/bind_define.h

@@ -550,12 +550,14 @@ int32_t set_proportion(const Arg *arg) {
 		!scroller_ignore_proportion_single)
 		return 0;
 
-	if (selmon->sel) {
+	Client *tc = selmon->sel;
+
+	if (tc) {
+		tc = get_scroll_stack_head(tc);
 		uint32_t max_client_width =
 			selmon->w.width - 2 * scroller_structs - gappih;
-		selmon->sel->scroller_proportion = arg->f;
+		tc->scroller_proportion = arg->f;
-		selmon->sel->geom.width = max_client_width * arg->f;
+		tc->geom.width = max_client_width * arg->f;
-		// resize(selmon->sel, selmon->sel->geom, 0);
 		arrange(selmon, false, false);
 	}
 	return 0;
@@ -971,11 +973,13 @@ int32_t switch_proportion_preset(const Arg *arg) {
 		!scroller_ignore_proportion_single)
 		return 0;
 
-	if (selmon->sel) {
+	Client *tc = selmon->sel;
 
+	if (tc) {
+		tc = get_scroll_stack_head(tc);
 		for (int32_t i = 0; i < config.scroller_proportion_preset_count; i++) {
 			if (config.scroller_proportion_preset[i] ==
-				selmon->sel->scroller_proportion) {
+				tc->scroller_proportion) {
 				if (i == config.scroller_proportion_preset_count - 1) {
 					target_proportion = config.scroller_proportion_preset[0];
 					break;
@@ -993,9 +997,8 @@ int32_t switch_proportion_preset(const Arg *arg) {
 
 		uint32_t max_client_width =
 			selmon->w.width - 2 * scroller_structs - gappih;
-		selmon->sel->scroller_proportion = target_proportion;
+		tc->scroller_proportion = target_proportion;
-		selmon->sel->geom.width = max_client_width * target_proportion;
+		tc->geom.width = max_client_width * target_proportion;
-		// resize(selmon->sel, selmon->sel->geom, 0);
 		arrange(selmon, false, false);
 	}
 	return 0;
@@ -1093,6 +1096,7 @@ int32_t tagsilent(const Arg *arg) {
 			clear_fullscreen_flag(fc);
 		}
 	}
+	exit_scroller_stack(target_client);
 	focusclient(focustop(selmon), 1);
 	arrange(target_client->mon, false, false);
 	return 0;
@@ -1221,9 +1225,11 @@ int32_t toggleglobal(const Arg *arg) {
 		selmon->sel->isnamedscratchpad = 0;
 	}
 	selmon->sel->isglobal ^= 1;
-	//   selmon->sel->tags =
+	if (selmon->sel->isglobal &&
-	//       selmon->sel->isglobal ? TAGMASK : selmon->tagset[selmon->seltags];
+		(selmon->sel->prev_in_stack || selmon->sel->next_in_stack)) {
-	//   focustop(selmon);
+		exit_scroller_stack(selmon->sel);
+		arrange(selmon, false, false);
+	}
 	setborder_color(selmon->sel);
 	return 0;
 }
@@ -1585,3 +1591,85 @@ int32_t toggle_monitor(const Arg *arg) {
 	}
 	return 0;
 }
+
+int32_t scroller_stack(const Arg *arg) {
+	Client *c = selmon->sel;
+	Client *stack_head = NULL;
+	Client *source_stack_head = NULL;
+	if (!c || c->isfloating || !is_scroller_layout(selmon))
+		return 0;
+
+	if (c && (!client_only_in_one_tag(c) || c->isglobal || c->isunglobal))
+		return 0;
+
+	Client *target_client = find_client_by_direction(c, arg, false, true);
+
+	if (target_client && (!client_only_in_one_tag(target_client) ||
+						  target_client->isglobal || target_client->isunglobal))
+		return 0;
+
+	if (target_client) {
+		stack_head = get_scroll_stack_head(target_client);
+	}
+
+	if (c) {
+		source_stack_head = get_scroll_stack_head(c);
+	}
+
+	if (stack_head == source_stack_head) {
+		return 0;
+	}
+
+	if (c->isfullscreen) {
+		setfullscreen(c, 0);
+	}
+
+	if (c->ismaximizescreen) {
+		setmaximizescreen(c, 0);
+	}
+
+	if (c->prev_in_stack) {
+		exit_scroller_stack(c);
+		if (arg->i == LEFT || arg->i == UP) {
+			wl_list_remove(&c->link);
+			wl_list_insert(source_stack_head->link.prev, &c->link);
+		} else {
+			wl_list_remove(&c->link);
+			wl_list_insert(&source_stack_head->link, &c->link);
+		}
+		arrange(selmon, false, false);
+		return 0;
+	} else if (c->next_in_stack) {
+		Client *next_in_stack = c->next_in_stack;
+		exit_scroller_stack(c);
+		if (arg->i == LEFT || arg->i == UP) {
+			wl_list_remove(&c->link);
+			wl_list_insert(next_in_stack->link.prev, &c->link);
+		} else {
+			wl_list_remove(&c->link);
+			wl_list_insert(&next_in_stack->link, &c->link);
+		}
+		arrange(selmon, false, false);
+		return 0;
+	}
+
+	if (!target_client || target_client->mon != c->mon) {
+		return 0;
+	}
+
+	exit_scroller_stack(c);
+
+	// Find the tail of target_client's stack
+	Client *stack_tail = target_client;
+	while (stack_tail->next_in_stack) {
+		stack_tail = stack_tail->next_in_stack;
+	}
+
+	// Add c to the stack
+	stack_tail->next_in_stack = c;
+	c->prev_in_stack = stack_tail;
+	c->next_in_stack = NULL;
+
+	arrange(selmon, false, false);
+	return 0;
+}

src/fetch/client.h

@@ -447,4 +447,12 @@ bool client_only_in_one_tag(Client *c) {
 	} else {
 		return false;
 	}
+}
+
+Client *get_scroll_stack_head(Client *c) {
+	Client *scroller_stack_head = c;
+	while (scroller_stack_head->prev_in_stack) {
+		scroller_stack_head = scroller_stack_head->prev_in_stack;
+	}
+	return scroller_stack_head;
 }

src/layout/arrange.h

@@ -378,6 +378,8 @@ void resize_tile_scroller(Client *grabc, bool isdrag, int32_t offsetx,
 						  int32_t offsety, uint32_t time, bool isvertical) {
 	float delta_x, delta_y;
 	float new_scroller_proportion;
+	float new_stack_proportion;
+	Client *stack_head = get_scroll_stack_head(grabc);
 
 	if (grabc && grabc->mon->visible_tiling_clients == 1 &&
 		!scroller_ignore_proportion_single)
@@ -389,7 +391,8 @@ void resize_tile_scroller(Client *grabc, bool isdrag, int32_t offsetx,
 		start_drag_window = true;
 
 		// 记录初始状态
-		grabc->old_scroller_pproportion = grabc->scroller_proportion;
+		stack_head->old_scroller_pproportion = stack_head->scroller_proportion;
+		grabc->old_stack_proportion = grabc->stack_proportion;
 
 		grabc->cursor_in_left_half =
 			cursor->x < grabc->geom.x + grabc->geom.width / 2;
@@ -409,15 +412,26 @@ void resize_tile_scroller(Client *grabc, bool isdrag, int32_t offsetx,
 			grabc->old_master_inner_per = grabc->master_inner_per;
 			grabc->old_stack_inner_per = grabc->stack_inner_per;
 			grabc->drag_begin_geom = grabc->geom;
-			grabc->old_scroller_pproportion = grabc->scroller_proportion;
+			stack_head->old_scroller_pproportion =
+				stack_head->scroller_proportion;
+			grabc->old_stack_proportion = grabc->stack_proportion;
 			grabc->cursor_in_upper_half = false;
 			grabc->cursor_in_left_half = false;
 		}
 
-		delta_x = (float)(offsetx) * (grabc->old_scroller_pproportion) /
+		if (isvertical) {
-				  grabc->drag_begin_geom.width;
+			delta_y = (float)(offsety) *
-		delta_y = (float)(offsety) * (grabc->old_scroller_pproportion) /
+					  (stack_head->old_scroller_pproportion) /
-				  grabc->drag_begin_geom.height;
+					  grabc->drag_begin_geom.height;
+			delta_x = (float)(offsetx) * (grabc->old_stack_proportion) /
+					  grabc->drag_begin_geom.width;
+		} else {
+			delta_x = (float)(offsetx) *
+					  (stack_head->old_scroller_pproportion) /
+					  grabc->drag_begin_geom.width;
+			delta_y = (float)(offsety) * (grabc->old_stack_proportion) /
+					  grabc->drag_begin_geom.height;
+		}
 
 		bool moving_up;
 		bool moving_down;
@@ -452,18 +466,36 @@ void resize_tile_scroller(Client *grabc, bool isdrag, int32_t offsetx,
 			delta_x = -fabsf(delta_x);
 		}
 
+		if (isvertical) {
+			if (!grabc->next_in_stack && grabc->prev_in_stack && !isdrag) {
+				delta_x = delta_x * -1.0f;
+			}
+		} else {
+			if (!grabc->next_in_stack && grabc->prev_in_stack && !isdrag) {
+				delta_y = delta_y * -1.0f;
+			}
+		}
+
 		// 直接设置新的比例，基于初始值 + 变化量
 		if (isvertical) {
-			new_scroller_proportion = grabc->old_scroller_pproportion + delta_y;
+			new_scroller_proportion =
+				stack_head->old_scroller_pproportion + delta_y;
+			new_stack_proportion = grabc->old_stack_proportion + delta_x;
+
 		} else {
-			new_scroller_proportion = grabc->old_scroller_pproportion + delta_x;
+			new_scroller_proportion =
+				stack_head->old_scroller_pproportion + delta_x;
+			new_stack_proportion = grabc->old_stack_proportion + delta_y;
 		}
 
 		// 应用限制，确保比例在合理范围内
 		new_scroller_proportion =
 			fmaxf(0.1f, fminf(1.0f, new_scroller_proportion));
+		new_stack_proportion = fmaxf(0.1f, fminf(1.0f, new_stack_proportion));
 
-		grabc->scroller_proportion = new_scroller_proportion;
+		grabc->stack_proportion = new_stack_proportion;
+
+		stack_head->scroller_proportion = new_scroller_proportion;
 
 		if (!isdrag) {
 			arrange(grabc->mon, false, false);
@@ -487,6 +519,9 @@ void resize_tile_client(Client *grabc, bool isdrag, int32_t offsetx,
 	if (grabc->mon->isoverview)
 		return;
 
+	int32_t animations_state_backup = animations;
+	animations = 0;
+
 	const Layout *current_layout =
 		grabc->mon->pertag->ltidxs[grabc->mon->pertag->curtag];
 	if (current_layout->id == TILE || current_layout->id == DECK ||
@@ -505,6 +540,8 @@ void resize_tile_client(Client *grabc, bool isdrag, int32_t offsetx,
 	} else if (current_layout->id == VERTICAL_SCROLLER) {
 		resize_tile_scroller(grabc, isdrag, offsetx, offsety, time, true);
 	}
+
+	animations = animations_state_backup;
 }
 
 void reset_size_per_mon(Monitor *m, int32_t tile_cilent_num,
@@ -605,6 +642,10 @@ arrange(Monitor *m, bool want_animation, bool from_view) {
 
 	wl_list_for_each(c, &clients, link) {
 
+		if (!client_only_in_one_tag(c) || c->isglobal || c->isunglobal) {
+			exit_scroller_stack(c);
+		}
+
 		if (from_view && (c->isglobal || c->isunglobal)) {
 			set_size_per(m, c);
 		}
@@ -627,7 +668,7 @@ arrange(Monitor *m, bool want_animation, bool from_view) {
 				m->visible_tiling_clients++;
 			}
 
-			if (ISSCROLLTILED(c)) {
+			if (ISSCROLLTILED(c) && !c->prev_in_stack) {
 				m->visible_scroll_tiling_clients++;
 			}
 		}

src/layout/horizontal.h

@@ -212,6 +212,66 @@ void horizontal_scroll_adjust_fullandmax(Client *c,
 	target_geom->y = m->w.y + (m->w.height - target_geom->height) / 2;
 }
 
+void arrange_stack(Client *scroller_stack_head, struct wlr_box geometry,
+				   int32_t gappiv) {
+	int32_t stack_size = 0;
+	Client *iter = scroller_stack_head;
+
+	while (iter) {
+		stack_size++;
+		iter = iter->next_in_stack;
+	}
+
+	if (stack_size == 0)
+		return;
+
+	float total_proportion = 0.0f;
+	iter = scroller_stack_head;
+	while (iter) {
+		if (iter->stack_proportion <= 0.0f || iter->stack_proportion >= 1.0f) {
+			iter->stack_proportion =
+				stack_size == 1 ? 1.0f : 1.0f / (stack_size - 1);
+		}
+		total_proportion += iter->stack_proportion;
+		iter = iter->next_in_stack;
+	}
+
+	iter = scroller_stack_head;
+	while (iter) {
+		iter->stack_proportion = iter->stack_proportion / total_proportion;
+		iter = iter->next_in_stack;
+	}
+
+	int32_t client_height;
+	int32_t current_y = geometry.y;
+	int32_t remain_client_height = geometry.height - (stack_size - 1) * gappiv;
+	float remain_proportion = 1.0f;
+
+	iter = scroller_stack_head;
+	while (iter) {
+
+		client_height =
+			remain_client_height * (iter->stack_proportion / remain_proportion);
+
+		struct wlr_box client_geom = {.x = geometry.x,
+									  .y = current_y,
+									  .width = geometry.width,
+									  .height = client_height};
+		resize(iter, client_geom, 0);
+		remain_proportion -= iter->stack_proportion;
+		remain_client_height -= client_height;
+		current_y += client_height + gappiv;
+		iter = iter->next_in_stack;
+	}
+}
+
+void horizontal_check_scroller_root_inside_mon(Client *c,
+											   struct wlr_box *geometry) {
+	if (!GEOMINSIDEMON(geometry, c->mon)) {
+		geometry->x = c->mon->w.x + (c->mon->w.width - geometry->width) / 2;
+	}
+}
+
 // 滚动布局
 void scroller(Monitor *m) {
 	int32_t i, n, j;
@@ -225,6 +285,7 @@ void scroller(Monitor *m) {
 	int32_t cur_gappih = enablegaps ? m->gappih : 0;
 	int32_t cur_gappoh = enablegaps ? m->gappoh : 0;
 	int32_t cur_gappov = enablegaps ? m->gappov : 0;
+	int32_t cur_gappiv = enablegaps ? m->gappiv : 0;
 
 	cur_gappih =
 		smartgaps && m->visible_scroll_tiling_clients == 1 ? 0 : cur_gappih;
@@ -251,7 +312,7 @@ void scroller(Monitor *m) {
 	// 第二次遍历，填充 tempClients
 	j = 0;
 	wl_list_for_each(c, &clients, link) {
-		if (VISIBLEON(c, m) && ISSCROLLTILED(c)) {
+		if (VISIBLEON(c, m) && ISSCROLLTILED(c) && !c->prev_in_stack) {
 			tempClients[j] = c;
 			j++;
 		}
@@ -269,7 +330,8 @@ void scroller(Monitor *m) {
 		target_geom.width = (m->w.width - 2 * cur_gappoh) * single_proportion;
 		target_geom.x = m->w.x + (m->w.width - target_geom.width) / 2;
 		target_geom.y = m->w.y + (m->w.height - target_geom.height) / 2;
-		resize(c, target_geom, 0);
+		horizontal_check_scroller_root_inside_mon(c, &target_geom);
+		arrange_stack(c, target_geom, cur_gappiv);
 		free(tempClients); // 释放内存
 		return;
 	}
@@ -283,6 +345,11 @@ void scroller(Monitor *m) {
 		root_client = center_tiled_select(m);
 	}
 
+	// root_client might be in a stack, find the stack head
+	if (root_client) {
+		root_client = get_scroll_stack_head(root_client);
+	}
+
 	if (!root_client) {
 		free(tempClients); // 释放内存
 		return;
@@ -317,10 +384,14 @@ void scroller(Monitor *m) {
 										&target_geom);
 	if (tempClients[focus_client_index]->isfullscreen) {
 		target_geom.x = m->m.x;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		horizontal_check_scroller_root_inside_mon(
+			tempClients[focus_client_index], &target_geom);
+		arrange_stack(tempClients[focus_client_index], target_geom, cur_gappiv);
 	} else if (tempClients[focus_client_index]->ismaximizescreen) {
 		target_geom.x = m->w.x + cur_gappoh;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		horizontal_check_scroller_root_inside_mon(
+			tempClients[focus_client_index], &target_geom);
+		arrange_stack(tempClients[focus_client_index], target_geom, cur_gappiv);
 	} else if (need_scroller) {
 		if (scroller_focus_center ||
 			((!m->prevsel ||
@@ -338,10 +409,14 @@ void scroller(Monitor *m) {
 											scroller_structs)
 								: m->w.x + scroller_structs;
 		}
-		resize(tempClients[focus_client_index], target_geom, 0);
+		horizontal_check_scroller_root_inside_mon(
+			tempClients[focus_client_index], &target_geom);
+		arrange_stack(tempClients[focus_client_index], target_geom, cur_gappiv);
 	} else {
 		target_geom.x = c->geom.x;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		horizontal_check_scroller_root_inside_mon(
+			tempClients[focus_client_index], &target_geom);
+		arrange_stack(tempClients[focus_client_index], target_geom, cur_gappiv);
 	}
 
 	for (i = 1; i <= focus_client_index; i++) {
@@ -351,7 +426,7 @@ void scroller(Monitor *m) {
 		target_geom.x = tempClients[focus_client_index - i + 1]->geom.x -
 						cur_gappih - target_geom.width;
 
-		resize(c, target_geom, 0);
+		arrange_stack(c, target_geom, cur_gappiv);
 	}
 
 	for (i = 1; i < n - focus_client_index; i++) {
@@ -361,7 +436,7 @@ void scroller(Monitor *m) {
 		target_geom.x = tempClients[focus_client_index + i - 1]->geom.x +
 						cur_gappih +
 						tempClients[focus_client_index + i - 1]->geom.width;
-		resize(c, target_geom, 0);
+		arrange_stack(c, target_geom, cur_gappiv);
 	}
 
 	free(tempClients); // 最后释放内存
@@ -853,4 +928,4 @@ void tgmix(Monitor *m) {
 		grid(m);
 		return;
 	}
-}
+}

src/layout/vertical.h

@@ -199,6 +199,66 @@ void vertical_scroll_adjust_fullandmax(Client *c, struct wlr_box *target_geom) {
 	target_geom->x = m->w.x + (m->w.width - target_geom->width) / 2;
 }
 
+void arrange_stack_vertical(Client *scroller_stack_head,
+							struct wlr_box geometry, int32_t gappih) {
+	int32_t stack_size = 0;
+	Client *iter = scroller_stack_head;
+
+	while (iter) {
+		stack_size++;
+		iter = iter->next_in_stack;
+	}
+
+	if (stack_size == 0)
+		return;
+
+	float total_proportion = 0.0f;
+	iter = scroller_stack_head;
+	while (iter) {
+		if (iter->stack_proportion <= 0.0f || iter->stack_proportion >= 1.0f) {
+			iter->stack_proportion =
+				stack_size == 1 ? 1.0f : 1.0f / (stack_size - 1);
+		}
+		total_proportion += iter->stack_proportion;
+		iter = iter->next_in_stack;
+	}
+
+	iter = scroller_stack_head;
+	while (iter) {
+		iter->stack_proportion = iter->stack_proportion / total_proportion;
+		iter = iter->next_in_stack;
+	}
+
+	int32_t client_width;
+	int32_t current_x = geometry.x;
+	int32_t remain_client_width = geometry.width - (stack_size - 1) * gappih;
+	float remain_proportion = 1.0f;
+
+	iter = scroller_stack_head;
+	while (iter) {
+
+		client_width =
+			remain_client_width * (iter->stack_proportion / remain_proportion);
+
+		struct wlr_box client_geom = {.y = geometry.y,
+									  .x = current_x,
+									  .height = geometry.height,
+									  .width = client_width};
+		resize(iter, client_geom, 0);
+		remain_proportion -= iter->stack_proportion;
+		remain_client_width -= client_width;
+		current_x += client_width + gappih;
+		iter = iter->next_in_stack;
+	}
+}
+
+void vertical_check_scroller_root_inside_mon(Client *c,
+											 struct wlr_box *geometry) {
+	if (!GEOMINSIDEMON(geometry, c->mon)) {
+		geometry->y = c->mon->w.y + (c->mon->w.height - geometry->height) / 2;
+	}
+}
+
 // 竖屏滚动布局
 void vertical_scroller(Monitor *m) {
 	int32_t i, n, j;
@@ -212,6 +272,7 @@ void vertical_scroller(Monitor *m) {
 	int32_t cur_gappiv = enablegaps ? m->gappiv : 0;
 	int32_t cur_gappov = enablegaps ? m->gappov : 0;
 	int32_t cur_gappoh = enablegaps ? m->gappoh : 0;
+	int32_t cur_gappih = enablegaps ? m->gappih : 0;
 
 	cur_gappiv =
 		smartgaps && m->visible_scroll_tiling_clients == 1 ? 0 : cur_gappiv;
@@ -235,7 +296,7 @@ void vertical_scroller(Monitor *m) {
 
 	j = 0;
 	wl_list_for_each(c, &clients, link) {
-		if (VISIBLEON(c, m) && ISSCROLLTILED(c)) {
+		if (VISIBLEON(c, m) && ISSCROLLTILED(c) && !c->prev_in_stack) {
 			tempClients[j] = c;
 			j++;
 		}
@@ -253,7 +314,8 @@ void vertical_scroller(Monitor *m) {
 		target_geom.height = (m->w.height - 2 * cur_gappov) * single_proportion;
 		target_geom.y = m->w.y + (m->w.height - target_geom.height) / 2;
 		target_geom.x = m->w.x + (m->w.width - target_geom.width) / 2;
-		resize(c, target_geom, 0);
+		vertical_check_scroller_root_inside_mon(c, &target_geom);
+		arrange_stack_vertical(c, target_geom, cur_gappih);
 		free(tempClients);
 		return;
 	}
@@ -267,6 +329,11 @@ void vertical_scroller(Monitor *m) {
 		root_client = center_tiled_select(m);
 	}
 
+	// root_client might be in a stack, find the stack head
+	if (root_client) {
+		root_client = get_scroll_stack_head(root_client);
+	}
+
 	if (!root_client) {
 		free(tempClients);
 		return;
@@ -302,10 +369,16 @@ void vertical_scroller(Monitor *m) {
 
 	if (tempClients[focus_client_index]->isfullscreen) {
 		target_geom.y = m->m.y;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		vertical_check_scroller_root_inside_mon(tempClients[focus_client_index],
+												&target_geom);
+		arrange_stack_vertical(tempClients[focus_client_index], target_geom,
+							   cur_gappih);
 	} else if (tempClients[focus_client_index]->ismaximizescreen) {
 		target_geom.y = m->w.y + cur_gappov;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		vertical_check_scroller_root_inside_mon(tempClients[focus_client_index],
+												&target_geom);
+		arrange_stack_vertical(tempClients[focus_client_index], target_geom,
+							   cur_gappih);
 	} else if (need_scroller) {
 		if (scroller_focus_center ||
 			((!m->prevsel ||
@@ -323,10 +396,16 @@ void vertical_scroller(Monitor *m) {
 											scroller_structs)
 								: m->w.y + scroller_structs;
 		}
-		resize(tempClients[focus_client_index], target_geom, 0);
+		vertical_check_scroller_root_inside_mon(tempClients[focus_client_index],
+												&target_geom);
+		arrange_stack_vertical(tempClients[focus_client_index], target_geom,
+							   cur_gappih);
 	} else {
 		target_geom.y = c->geom.y;
-		resize(tempClients[focus_client_index], target_geom, 0);
+		vertical_check_scroller_root_inside_mon(tempClients[focus_client_index],
+												&target_geom);
+		arrange_stack_vertical(tempClients[focus_client_index], target_geom,
+							   cur_gappih);
 	}
 
 	for (i = 1; i <= focus_client_index; i++) {
@@ -336,7 +415,7 @@ void vertical_scroller(Monitor *m) {
 		target_geom.y = tempClients[focus_client_index - i + 1]->geom.y -
 						cur_gappiv - target_geom.height;
 
-		resize(c, target_geom, 0);
+		arrange_stack_vertical(c, target_geom, cur_gappih);
 	}
 
 	for (i = 1; i < n - focus_client_index; i++) {
@@ -346,7 +425,7 @@ void vertical_scroller(Monitor *m) {
 		target_geom.y = tempClients[focus_client_index + i - 1]->geom.y +
 						cur_gappiv +
 						tempClients[focus_client_index + i - 1]->geom.height;
-		resize(c, target_geom, 0);
+		arrange_stack_vertical(c, target_geom, cur_gappih);
 	}
 
 	free(tempClients);

src/mango.c

@@ -21,6 +21,7 @@
 #include <time.h>
 #include <unistd.h>
 #include <wayland-server-core.h>
+#include <wayland-util.h>
 #include <wlr/backend.h>
 #include <wlr/backend/headless.h>
 #include <wlr/backend/libinput.h>
@@ -101,6 +102,10 @@
 	(A->geom.x >= A->mon->m.x && A->geom.y >= A->mon->m.y &&                   \
 	 A->geom.x + A->geom.width <= A->mon->m.x + A->mon->m.width &&             \
 	 A->geom.y + A->geom.height <= A->mon->m.y + A->mon->m.height)
+#define GEOMINSIDEMON(A, M)                                                    \
+	(A->x >= M->m.x && A->y >= M->m.y &&                                       \
+	 A->x + A->width <= M->m.x + M->m.width &&                                 \
+	 A->y + A->height <= M->m.y + M->m.height)
 #define ISTILED(A)                                                             \
 	(A && !(A)->isfloating && !(A)->isminimized && !(A)->iskilling &&          \
 	 !(A)->ismaximizescreen && !(A)->isfullscreen && !(A)->isunglobal)
@@ -375,6 +380,8 @@ struct Client {
 	bool is_pending_open_animation;
 	bool is_restoring_from_ov;
 	float scroller_proportion;
+	float stack_proportion;
+	float old_stack_proportion;
 	bool need_output_flush;
 	struct dwl_animation animation;
 	struct dwl_opacity_animation opacity_animation;
@@ -407,6 +414,8 @@ struct Client {
 	int32_t allow_shortcuts_inhibit;
 	float scroller_proportion_single;
 	bool isfocusing;
+	struct Client *next_in_stack;
+	struct Client *prev_in_stack;
 };
 
 typedef struct {
@@ -762,6 +771,11 @@ static void init_client_properties(Client *c);
 static float *get_border_color(Client *c);
 static void clear_fullscreen_and_maximized_state(Monitor *m);
 static void request_fresh_all_monitors(void);
+static Client *find_client_by_direction(Client *tc, const Arg *arg,
+										bool findfloating, bool ignore_align);
+static void exit_scroller_stack(Client *c);
+static Client *get_scroll_stack_head(Client *c);
+static bool client_only_in_one_tag(Client *c);
 
 #include "data/static_keymap.h"
 #include "dispatch/bind_declare.h"
@@ -1053,6 +1067,13 @@ void swallow(Client *c, Client *w) {
 	c->geom = w->geom;
 	c->float_geom = w->float_geom;
 	c->scroller_proportion = w->scroller_proportion;
+	c->next_in_stack = w->next_in_stack;
+	c->prev_in_stack = w->prev_in_stack;
+	if (w->next_in_stack)
+		w->next_in_stack->prev_in_stack = c;
+	if (w->prev_in_stack)
+		w->prev_in_stack->next_in_stack = c;
+	c->stack_proportion = w->stack_proportion;
 	wl_list_insert(&w->link, &c->link);
 	wl_list_insert(&w->flink, &c->flink);
 
@@ -3636,7 +3657,8 @@ void keypressmod(struct wl_listener *listener, void *data) {
 }
 
 void pending_kill_client(Client *c) {
-	// c->iskilling = 1; //不可以提前标记已经杀掉，因为有些客户端可能拒绝
+	if (!c || c->iskilling)
+		return;
 	client_send_close(c);
 }
 
@@ -3744,6 +3766,9 @@ void init_client_properties(Client *c) {
 	c->float_geom.height = 0;
 	c->float_geom.x = 0;
 	c->float_geom.y = 0;
+	c->stack_proportion = 0.0f;
+	c->next_in_stack = NULL;
+	c->prev_in_stack = NULL;
 }
 
 void // old fix to 0.5
@@ -3823,7 +3848,7 @@ mapnotify(struct wl_listener *listener, void *data) {
 
 		if (selmon->sel && ISSCROLLTILED(selmon->sel) &&
 			VISIBLEON(selmon->sel, selmon)) {
-			at_client = selmon->sel;
+			at_client = get_scroll_stack_head(selmon->sel);
 		} else {
 			at_client = center_tiled_select(selmon);
 		}
@@ -4175,8 +4200,8 @@ void pointerfocus(Client *c, struct wlr_surface *surface, double sx, double sy,
 				  uint32_t time) {
 	struct timespec now;
 
-	if (sloppyfocus && c && time && c->scene->node.enabled &&
+	if (sloppyfocus && !start_drag_window && c && time &&
-		!c->animation.tagining &&
+		c->scene->node.enabled && !c->animation.tagining &&
 		(surface != seat->pointer_state.focused_surface) &&
 		!client_is_unmanaged(c) && VISIBLEON(c, c->mon))
 		focusclient(c, 0);
@@ -4353,12 +4378,32 @@ void exchange_two_client(Client *c1, Client *c2) {
 	double master_inner_per = 0.0f;
 	double master_mfact_per = 0.0f;
 	double stack_inner_per = 0.0f;
+	float scroller_proportion = 0.0f;
+	float stack_proportion = 0.0f;
 
 	if (c1 == NULL || c2 == NULL ||
 		(!exchange_cross_monitor && c1->mon != c2->mon)) {
 		return;
 	}
 
+	if (c1->mon != c2->mon && (c1->prev_in_stack || c2->prev_in_stack ||
+							   c1->next_in_stack || c2->next_in_stack))
+		return;
+
+	Client *c1head = get_scroll_stack_head(c1);
+	Client *c2head = get_scroll_stack_head(c2);
+
+	// 交换布局参数
+	if (c1head == c2head) {
+		scroller_proportion = c1->scroller_proportion;
+		stack_proportion = c1->stack_proportion;
+
+		c1->scroller_proportion = c2->scroller_proportion;
+		c1->stack_proportion = c2->stack_proportion;
+		c2->scroller_proportion = scroller_proportion;
+		c2->stack_proportion = stack_proportion;
+	}
+
 	master_inner_per = c1->master_inner_per;
 	master_mfact_per = c1->master_mfact_per;
 	stack_inner_per = c1->stack_inner_per;
@@ -4371,17 +4416,46 @@ void exchange_two_client(Client *c1, Client *c2) {
 	c2->master_mfact_per = master_mfact_per;
 	c2->stack_inner_per = stack_inner_per;
 
+	// 交换栈链表连接
+	Client *tmp1_next_in_stack = c1->next_in_stack;
+	Client *tmp1_prev_in_stack = c1->prev_in_stack;
+	Client *tmp2_next_in_stack = c2->next_in_stack;
+	Client *tmp2_prev_in_stack = c2->prev_in_stack;
+
+	// 处理相邻节点的情况
+	if (c1->next_in_stack == c2) {
+		c1->next_in_stack = tmp2_next_in_stack;
+		c2->next_in_stack = c1;
+		c1->prev_in_stack = c2;
+		c2->prev_in_stack = tmp1_prev_in_stack;
+		if (tmp1_prev_in_stack)
+			tmp1_prev_in_stack->next_in_stack = c2;
+		if (tmp2_next_in_stack)
+			tmp2_next_in_stack->prev_in_stack = c1;
+	} else if (c2->next_in_stack == c1) {
+		c2->next_in_stack = tmp1_next_in_stack;
+		c1->next_in_stack = c2;
+		c2->prev_in_stack = c1;
+		c1->prev_in_stack = tmp2_prev_in_stack;
+		if (tmp2_prev_in_stack)
+			tmp2_prev_in_stack->next_in_stack = c1;
+		if (tmp1_next_in_stack)
+			tmp1_next_in_stack->prev_in_stack = c2;
+	} else if (c1->prev_in_stack || c2->prev_in_stack) {
+		Client *c1head = get_scroll_stack_head(c1);
+		Client *c2head = get_scroll_stack_head(c2);
+		exchange_two_client(c1head, c2head);
+		focusclient(c1, 0);
+		return;
+	}
+
+	// 交换全局链表连接
 	struct wl_list *tmp1_prev = c1->link.prev;
 	struct wl_list *tmp2_prev = c2->link.prev;
 	struct wl_list *tmp1_next = c1->link.next;
 	struct wl_list *tmp2_next = c2->link.next;
 
-	// wl_list
+	// 处理相邻节点的情况
-	// 是双向链表,其中clients是头部节点,它的下一个节点是第一个客户端的链表节点
-	// 最后一个客户端的链表节点的下一个节点也指向clients,但clients本身不是客户端的链表节点
-	// 客户端遍历从clients的下一个节点开始,到检测到客户端节点的下一个是clients结束
-
-	// 当c1和c2为相邻节点时
 	if (c1->link.next == &c2->link) {
 		c1->link.next = c2->link.next;
 		c1->link.prev = &c2->link;
@@ -4408,6 +4482,7 @@ void exchange_two_client(Client *c1, Client *c2) {
 		tmp2_next->prev = &c1->link;
 	}
 
+	// 处理跨监视器交换
 	if (exchange_cross_monitor) {
 		tmp_mon = c2->mon;
 		tmp_tags = c2->tags;
@@ -4418,7 +4493,6 @@ void exchange_two_client(Client *c1, Client *c2) {
 		focusclient(c1, 0);
 	} else {
 		arrange(c1->mon, false, false);
-		focusclient(c1, 0);
 	}
 }
 
@@ -4538,6 +4612,8 @@ setfloating(Client *c, int32_t floating) {
 			c->bw = c->isnoborder ? 0 : borderpx;
 		}
 
+		exit_scroller_stack(c);
+
 		// 重新计算居中的坐标
 		if (!client_is_x11(c) && !c->iscustompos)
 			target_box =
@@ -4609,6 +4685,27 @@ void reset_maximizescreen_size(Client *c) {
 	resize(c, c->geom, 0);
 }
 
+void exit_scroller_stack(Client *c) {
+	// If c is already in a stack, remove it.
+	if (c->prev_in_stack) {
+		c->prev_in_stack->next_in_stack = c->next_in_stack;
+	}
+
+	if (!c->prev_in_stack && c->next_in_stack) {
+		c->next_in_stack->scroller_proportion = c->scroller_proportion;
+		wl_list_remove(&c->next_in_stack->link);
+		wl_list_insert(&c->link, &c->next_in_stack->link);
+	}
+
+	if (c->next_in_stack) {
+		c->next_in_stack->prev_in_stack = c->prev_in_stack;
+	}
+
+	c->prev_in_stack = NULL;
+	c->next_in_stack = NULL;
+	c->stack_proportion = 0.0f;
+}
+
 void setmaximizescreen(Client *c, int32_t maximizescreen) {
 	struct wlr_box maximizescreen_box;
 	if (!c || !c->mon || !client_surface(c)->mapped || c->iskilling)
@@ -4624,6 +4721,8 @@ void setmaximizescreen(Client *c, int32_t maximizescreen) {
 		if (c->isfullscreen)
 			setfullscreen(c, 0);
 
+		exit_scroller_stack(c);
+
 		if (c->isfloating)
 			c->float_geom = c->geom;
 
@@ -4685,6 +4784,8 @@ void setfullscreen(Client *c, int32_t fullscreen) // 用自定义全屏代理自
 		if (c->ismaximizescreen)
 			setmaximizescreen(c, 0);
 
+		exit_scroller_stack(c);
+
 		if (c->isfloating)
 			c->float_geom = c->geom;
 
@@ -5259,6 +5360,7 @@ void tag_client(const Arg *arg, Client *target_client) {
 	Client *fc = NULL;
 	if (target_client && arg->ui & TAGMASK) {
 
+		exit_scroller_stack(target_client);
 		target_client->tags = arg->ui & TAGMASK;
 		target_client->istagswitching = 1;
 
@@ -5406,15 +5508,22 @@ void unmapnotify(struct wl_listener *listener, void *data) {
 	 */
 	Client *c = wl_container_of(listener, c, unmap);
 	Monitor *m = NULL;
+	Client *nextfocus = NULL;
+	Client *next_in_stack = c->next_in_stack;
+	Client *prev_in_stack = c->prev_in_stack;
 	c->iskilling = 1;
 
 	if (animations && !c->is_clip_to_hide && !c->isminimized &&
 		(!c->mon || VISIBLEON(c, c->mon)))
 		init_fadeout_client(c);
 
+	// If the client is in a stack, remove it from the stack
+
 	if (c->swallowedby) {
 		c->swallowedby->mon = c->mon;
 		swallow(c->swallowedby, c);
+	} else {
+		exit_scroller_stack(c);
 	}
 
 	if (c == grabc) {
@@ -5435,7 +5544,13 @@ void unmapnotify(struct wl_listener *listener, void *data) {
 	}
 
 	if (c->mon && c->mon == selmon) {
-		Client *nextfocus = focustop(selmon);
+		if (next_in_stack && !c->swallowedby) {
+			nextfocus = next_in_stack;
+		} else if (prev_in_stack && !c->swallowedby) {
+			nextfocus = prev_in_stack;
+		} else {
+			nextfocus = focustop(selmon);
+		}
 
 		if (nextfocus) {
 			focusclient(nextfocus, 0);
@@ -5482,6 +5597,10 @@ void unmapnotify(struct wl_listener *listener, void *data) {
 		c->swallowing = NULL;
 	}
 
+	c->stack_proportion = 0.0f;
+	c->next_in_stack = NULL;
+	c->prev_in_stack = NULL;
+
 	wlr_scene_node_destroy(&c->scene->node);
 	printstatus();
 	motionnotify(0, NULL, 0, 0, 0, 0);