First step toward titlebars

src/animation/client.h

@@ -450,7 +450,6 @@ void apply_split_border(Client *c, bool hit_no_border) {
 	}
 
 	struct wlr_box fullgeom = c->animation.current;
-	// 一但在GEZERO如果使用无符号，那么其他数据也会转换为无符号导致没有负数出错
 	int32_t bw = (int32_t)c->bw;
 
 	int32_t right_offset, bottom_offset, left_offset, top_offset;
@@ -503,6 +502,75 @@ void apply_split_border(Client *c, bool hit_no_border) {
 								border_right_y);
 }
 
+static int32_t titlebar_active_height(void) {
+	return config.enable_titlebars ? (int32_t)config.titlebar_height : 0;
+}
+
+void update_titlebar_hover(Client *c);
+
+void apply_titlebar(Client *c, int32_t rect_width,
+					enum corner_location corners) {
+	int32_t tb = titlebar_active_height();
+	bool show_titlebar = tb > 0 && !c->isfullscreen;
+	if (!c->titlebar_bg)
+		return;
+	wlr_scene_node_set_enabled(&c->titlebar_bg->node, show_titlebar);
+	if (show_titlebar) {
+		int32_t tb_margin = (int32_t)config.titlebar_button_margin;
+		int32_t tb_btn_size = (int32_t)config.titlebar_button_size;
+
+		wlr_scene_rect_set_size(c->titlebar_bg, rect_width, tb);
+		wlr_scene_node_set_position(&c->titlebar_bg->node, 0, 0);
+		wlr_scene_rect_set_corner_radius(c->titlebar_bg, config.border_radius,
+										 corners & ~CORNER_LOCATION_BOTTOM);
+
+		if (c->titlebar_close) {
+			int32_t btn_x = rect_width - tb_margin - tb_btn_size;
+			int32_t btn_y = tb_margin;
+			int32_t btn_h = tb - 2 * tb_margin;
+			wlr_scene_rect_set_size(c->titlebar_close, tb_btn_size, btn_h);
+			wlr_scene_node_set_position(&c->titlebar_close->node, btn_x, btn_y);
+			update_titlebar_hover(c);
+			wlr_scene_node_set_enabled(&c->titlebar_close->node, true);
+		}
+	} else if (c->titlebar_close) {
+		wlr_scene_node_set_enabled(&c->titlebar_close->node, false);
+	}
+}
+
+void update_titlebar_hover(Client *c) {
+	if (!c || !c->titlebar_close || !c->titlebar_bg)
+		return;
+	int32_t tb = titlebar_active_height();
+	if (tb <= 0 || c->isfullscreen) {
+		wlr_scene_node_set_enabled(&c->titlebar_close->node, false);
+		return;
+	}
+	wlr_scene_node_set_enabled(&c->titlebar_close->node, true);
+
+	int32_t tb_margin = (int32_t)config.titlebar_button_margin;
+	int32_t tb_btn_size = (int32_t)config.titlebar_button_size;
+	int32_t btn_x = c->animation.current.width - tb_margin - tb_btn_size;
+	int32_t btn_y = tb_margin;
+	int32_t btn_h = tb - 2 * tb_margin;
+
+	bool hover = cursor->x >= c->animation.current.x + btn_x &&
+				 cursor->x < c->animation.current.x + btn_x + tb_btn_size &&
+				 cursor->y >= c->animation.current.y + btn_y &&
+				 cursor->y < c->animation.current.y + btn_y + btn_h;
+
+	if (hover) {
+		float hover_color[4] = {config.title_close_color[0] * 0.5f + 0.5f,
+								config.title_close_color[1] * 0.5f + 0.5f,
+								config.title_close_color[2] * 0.5f + 0.5f,
+								config.title_close_color[3]};
+		wlr_scene_rect_set_color(c->titlebar_close, hover_color);
+	} else {
+		wlr_scene_rect_set_color(c->titlebar_close, config.title_close_color);
+	}
+}
+}
+
 void apply_border(Client *c) {
 	if (!c || c->iskilling || !client_surface(c)->mapped)
 		return;
@@ -536,8 +604,10 @@ void apply_border(Client *c) {
 		c->fake_no_border = true;
 	} else if (hit_no_border && !config.smartgaps) {
 		wlr_scene_rect_set_size(c->border, 0, 0);
-		wlr_scene_node_set_position(&c->scene_surface->node, c->bw, c->bw);
+		wlr_scene_node_set_position(&c->scene_surface->node, c->bw,
+									c->bw + titlebar_active_height());
 		c->fake_no_border = true;
+		apply_titlebar(c, c->animation.current.width, current_corner_location);
 		return;
 	} else if (!c->isfullscreen && VISIBLEON(c, c->mon)) {
 		c->bw = c->isnoborder ? 0 : config.borderpx;
@@ -606,12 +676,16 @@ void apply_border(Client *c) {
 		.corners = current_corner_location,
 	};
 
-	wlr_scene_node_set_position(&c->scene_surface->node, c->bw, c->bw);
+	int32_t tb = titlebar_active_height();
+	int32_t surf_y_off = tb > 0 ? tb : c->bw;
+	wlr_scene_node_set_position(&c->scene_surface->node, c->bw, surf_y_off);
 	wlr_scene_rect_set_size(c->border, rect_width, rect_height);
 	wlr_scene_node_set_position(&c->border->node, rect_x, rect_y);
 	wlr_scene_rect_set_corner_radius(c->border, config.border_radius,
 									 current_corner_location);
 	wlr_scene_rect_set_clipped_region(c->border, clipped_region);
+
+	apply_titlebar(c, c->animation.current.width, current_corner_location);
 }
 
 struct ivec2 clip_to_hide(Client *c, struct wlr_box *clip_box) {
@@ -892,6 +966,7 @@ void client_apply_clip(Client *c, float factor) {
 			c->geom;
 
 		client_get_clip(c, &clip_box);
+		clip_box.height = GEZERO(clip_box.height - titlebar_active_height());
 
 		offset = clip_to_hide(c, &clip_box);
 
@@ -924,7 +999,7 @@ void client_apply_clip(Client *c, float factor) {
 		.x = geometry.x,
 		.y = geometry.y,
 		.width = width,
-		.height = height,
+		.height = height - titlebar_active_height(),
 	};
 
 	if (client_is_x11(c)) {
@@ -1364,7 +1439,7 @@ void resize(Client *c, struct wlr_box geo, int32_t interact) {
 	// c->geom 是真实的窗口大小和位置，跟过度的动画无关，用于计算布局
 	if (!c->mon->isoverview || !config.ov_no_resize) {
 		c->configure_serial = client_set_size(c, c->geom.width - 2 * c->bw,
-											  c->geom.height - 2 * c->bw);
+				c->geom.height - 2 * c->bw - titlebar_active_height());
 	}
 
 	if (c->configure_serial != 0) {
@@ -1382,6 +1457,7 @@ void resize(Client *c, struct wlr_box geo, int32_t interact) {
 		client_draw_shadow(c);
 		apply_border(c);
 		client_get_clip(c, &clip);
+		clip.height = GEZERO(clip.height - titlebar_active_height());
 		wlr_scene_subsurface_tree_set_clip(&c->scene_surface->node, &clip);
 		return;
 	}

src/config/parse_config.h

@@ -346,6 +346,14 @@ typedef struct {
 	float globalcolor[4];
 	float overlaycolor[4];
 
+	int32_t enable_titlebars;
+	uint32_t titlebar_height;
+	uint32_t titlebar_button_size;
+	uint32_t titlebar_button_margin;
+	float title_color[4];
+	float title_unfocused_color[4];
+	float title_close_color[4];
+
 	int32_t log_level;
 	uint32_t capslock;
 
@@ -2078,6 +2086,47 @@ bool parse_option(Config *config, char *key, char *value) {
 		} else {
 			convert_hex_to_rgba(config->overlaycolor, color);
 		}
+	} else if (strcmp(key, "enable_titlebars") == 0) {
+		config->enable_titlebars = atoi(value);
+	} else if (strcmp(key, "titlebar_height") == 0) {
+		config->titlebar_height = atoi(value);
+	} else if (strcmp(key, "titlebar_button_size") == 0) {
+		config->titlebar_button_size = atoi(value);
+	} else if (strcmp(key, "titlebar_button_margin") == 0) {
+		config->titlebar_button_margin = atoi(value);
+	} else if (strcmp(key, "title_color") == 0) {
+		int64_t color = parse_color(value);
+		if (color == -1) {
+			fprintf(stderr,
+					"\033[1m\033[31m[ERROR]:\033[33m Invalid title_color "
+					"format: %s\n",
+					value);
+			return false;
+		} else {
+			convert_hex_to_rgba(config->title_color, color);
+		}
+	} else if (strcmp(key, "title_unfocused_color") == 0) {
+		int64_t color = parse_color(value);
+		if (color == -1) {
+			fprintf(stderr,
+					"\033[1m\033[31m[ERROR]:\033[33m Invalid "
+					"title_unfocused_color format: %s\n",
+					value);
+			return false;
+		} else {
+			convert_hex_to_rgba(config->title_unfocused_color, color);
+		}
+	} else if (strcmp(key, "title_close_color") == 0) {
+		int64_t color = parse_color(value);
+		if (color == -1) {
+			fprintf(stderr,
+					"\033[1m\033[31m[ERROR]:\033[33m Invalid title_close_color "
+					"format: %s\n",
+					value);
+			return false;
+		} else {
+			convert_hex_to_rgba(config->title_close_color, color);
+		}
 	} else if (strcmp(key, "monitorrule") == 0) {
 		config->monitor_rules =
 			realloc(config->monitor_rules, (config->monitor_rules_count + 1) *
@@ -3597,7 +3646,6 @@ void override_config(void) {
 	config.focused_opacity = CLAMP_FLOAT(config.focused_opacity, 0.0f, 1.0f);
 	config.unfocused_opacity =
 		CLAMP_FLOAT(config.unfocused_opacity, 0.0f, 1.0f);
-
 	config.tabdata.border_width =
 		CLAMP_INT(config.tabdata.border_width, 0, 100);
 	config.tabdata.corner_radius =
@@ -3613,6 +3661,12 @@ void override_config(void) {
 		CLAMP_INT(config.jumplabeldata.padding_x, 0, 100);
 	config.jumplabeldata.padding_y =
 		CLAMP_INT(config.jumplabeldata.padding_y, 0, 100);
+	config.enable_titlebars = CLAMP_INT(config.enable_titlebars, 0, 1);
+	config.titlebar_height = CLAMP_INT(config.titlebar_height, 10, 200);
+	config.titlebar_button_size =
+		CLAMP_INT(config.titlebar_button_size, 4, 100);
+	config.titlebar_button_margin =
+		CLAMP_INT(config.titlebar_button_margin, 0, 50);
 }
 
 void set_value_default() {
@@ -3879,6 +3933,23 @@ void set_value_default() {
 	config.overlaycolor[1] = 0xa5 / 255.0f;
 	config.overlaycolor[2] = 0x7c / 255.0f;
 	config.overlaycolor[3] = 1.0f;
+
+	config.enable_titlebars = 0;
+	config.titlebar_height = 30;
+	config.titlebar_button_size = 16;
+	config.titlebar_button_margin = 4;
+	config.title_color[0] = 0xc6 / 255.0f;
+	config.title_color[1] = 0x6b / 255.0f;
+	config.title_color[2] = 0x25 / 255.0f;
+	config.title_color[3] = 1.0f;
+	config.title_unfocused_color[0] = 0x44 / 255.0f;
+	config.title_unfocused_color[1] = 0x44 / 255.0f;
+	config.title_unfocused_color[2] = 0x44 / 255.0f;
+	config.title_unfocused_color[3] = 1.0f;
+	config.title_close_color[0] = 0xad / 255.0f;
+	config.title_close_color[1] = 0x40 / 255.0f;
+	config.title_close_color[2] = 0x1f / 255.0f;
+	config.title_close_color[3] = 1.0f;
 }
 
 void set_default_key_bindings(Config *config) {

src/mango.c

@@ -339,6 +339,8 @@ struct Client {
 	struct wlr_scene_tree *overview_scene_surface;
 	struct mango_jump_label_node *jump_label_node;
 	struct mango_tab_bar_node *tab_bar_node;
+	struct wlr_scene_rect *titlebar_bg;
+	struct wlr_scene_rect *titlebar_close;
 	struct wl_list link;
 	struct wl_list flink;
 	struct wl_list fadeout_link;
@@ -984,6 +986,7 @@ static int32_t rzcorner;
 static int32_t grabcx, grabcy;						   /* client-relative */
 static int32_t drag_begin_cursorx, drag_begin_cursory; /* client-relative */
 static bool start_drag_window = false;
+static Client *hovered_client = NULL;
 static int32_t last_apply_drap_time = 0;
 
 static struct wlr_output_layout *output_layout;
@@ -2411,6 +2414,36 @@ bool handle_buttonpress(struct wlr_pointer_button_event *event) {
 
 		mods = mods | hard_mods;
 
+		if (config.enable_titlebars && event->button == BTN_LEFT && c &&
+			!c->isfullscreen && !client_is_unmanaged(c)) {
+			int32_t tb_height = (int32_t)config.titlebar_height;
+			if (cursor->y >= c->geom.y && cursor->y < c->geom.y + tb_height) {
+				int32_t tb_margin = (int32_t)config.titlebar_button_margin;
+				int32_t tb_btn_size = (int32_t)config.titlebar_button_size;
+				int32_t close_x =
+					c->geom.x + c->geom.width - tb_margin - tb_btn_size;
+				int32_t close_y = c->geom.y + tb_margin;
+				if (cursor->x >= close_x && cursor->x < close_x + tb_btn_size &&
+					cursor->y >= close_y &&
+					cursor->y < close_y + tb_height - 2 * tb_margin) {
+					pending_kill_client(c);
+					return;
+				}
+				grabc = c;
+				if (grabc->isfloating == 0) {
+					grabc->drag_to_tile = true;
+					exit_scroller_stack(grabc);
+					setfloating(grabc, 1);
+					grabc->drag_tile_float_backup_geom = grabc->float_geom;
+					grabc->old_stack_inner_per = 0.0f;
+					grabc->old_master_inner_per = 0.0f;
+					set_size_per(grabc->mon, grabc);
+				}
+				start_drag_window = true;
+				return;
+			}
+		}
+
 		for (ji = 0; ji < config.mouse_bindings_count; ji++) {
 			if (config.mouse_bindings_count < 1)
 				break;
@@ -2461,6 +2494,10 @@ bool handle_buttonpress(struct wlr_pointer_button_event *event) {
 			}
 			return true;
 		} else {
+			if (start_drag_window && grabc) {
+				grabc = NULL;
+				start_drag_window = false;
+			}
 			cursor_mode = CurNormal;
 		}
 		break;
@@ -3800,6 +3837,8 @@ destroynotify(struct wl_listener *listener, void *data) {
 		wl_list_remove(&c->map.link);
 		wl_list_remove(&c->unmap.link);
 	}
+	if (c == hovered_client)
+		hovered_client = NULL;
 	free(c);
 }
 
@@ -4607,6 +4646,18 @@ 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->titlebar_bg = wlr_scene_rect_create(c->scene, 0, 0, config.title_color);
+	wlr_scene_node_raise_to_top(&c->titlebar_bg->node);
+	wlr_scene_node_set_enabled(&c->titlebar_bg->node, config.enable_titlebars);
+
+	c->titlebar_close =
+		wlr_scene_rect_create(c->scene, 0, 0, config.title_close_color);
+	wlr_scene_node_raise_to_top(&c->titlebar_close->node);
+	wlr_scene_node_set_enabled(&c->titlebar_close->node,
+							   config.enable_titlebars);
+
+	wlr_scene_node_raise_to_top(&c->border->node);
+
 	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
@@ -4843,6 +4894,31 @@ void motionnotify(uint32_t time, struct wlr_input_device *device, double dx,
 		sy = cursor->y - (l ? l->scene->node.y : w->geom.y);
 	}
 
+	/* Update titlebar close button hover */
+	if (hovered_client && hovered_client != c) {
+		update_titlebar_hover(hovered_client);
+	}
+	if (config.enable_titlebars) {
+		hovered_client = c;
+		if (c)
+			update_titlebar_hover(c);
+	}
+
+	/* Initiate titlebar drag on first motion */
+	if (cursor_mode == CurPressed && start_drag_window && grabc) {
+		if (grabc->drag_to_tile && config.drag_tile_small) {
+			grabc->geom.x = cursor->x - 150;
+			grabc->geom.y = cursor->y - 150;
+			grabc->geom.width = 300;
+			grabc->geom.height = 300;
+			resize(grabc, grabc->geom, 1);
+		}
+		grabcx = cursor->x - grabc->geom.x;
+		grabcy = cursor->y - grabc->geom.y;
+		cursor_mode = CurMove;
+		wlr_cursor_set_xcursor(cursor, cursor_mgr, "grab");
+	}
+
 	/* Update drag icon's position */
 	wlr_scene_node_set_position(&drag_icon->node, (int32_t)round(cursor->x),
 								(int32_t)round(cursor->y));
@@ -5234,6 +5310,12 @@ void setborder_color(Client *c) {
 	memcpy(c->opacity_animation.target_border_color, border_color,
 		   sizeof(c->opacity_animation.target_border_color));
 	client_set_border_color(c, border_color);
+
+	if (c->titlebar_bg) {
+		float *title_color = (c == selmon->sel) ? config.title_color
+												: config.title_unfocused_color;
+		wlr_scene_rect_set_color(c->titlebar_bg, title_color);
+	}
 }
 
 void exchange_two_client(Client *c1, Client *c2) {
@@ -6488,6 +6570,9 @@ void unmapnotify(struct wl_listener *listener, void *data) {
 		(!c->mon || VISIBLEON(c, c->mon)))
 		init_fadeout_client(c);
 
+	if (c == hovered_client)
+		hovered_client = NULL;
+
 	// If the client is in a stack, remove it from the stack
 
 	if (c->swallowedby) {