Revert "Refactor tree"

13 files changed, 260 insertions, 243 deletions

diff --git a/include/sway/config.h b/include/sway/config.h
index 7fdd0be0..48a8b0ab 100644
--- a/include/sway/config.h
+++ b/include/sway/config.h
@@ -10,8 +10,8 @@
 #include <xkbcommon/xkbcommon.h>
 #include <time.h>
 #include "list.h"
-#include "tree/layout.h"
-#include "tree/container.h"
+#include "layout.h"
+#include "container.h"
 
 /**
  * Describes a variable created via the `set` command.
@@ -299,8 +299,8 @@ struct sway_config {
 	char *floating_scroll_down_cmd;
 	char *floating_scroll_left_cmd;
 	char *floating_scroll_right_cmd;
-	enum sway_container_layout default_orientation;
-	enum sway_container_layout default_layout;
+	enum swayc_layouts default_orientation;
+	enum swayc_layouts default_layout;
 	char *font;
 	int font_height;
 
@@ -324,8 +324,8 @@ struct sway_config {
 	list_t *config_chain;
 	const char *current_config;
 
-	enum sway_container_border border;
-	enum sway_container_border floating_border;
+	enum swayc_border_types border;
+	enum swayc_border_types floating_border;
 	int border_thickness;
 	int floating_border_thickness;
 	enum edge_border_types hide_edge_borders;
@@ -356,7 +356,7 @@ struct sway_config {
 		struct input_config *input_config;
 		struct seat_config *seat_config;
 		struct sway_seat *seat;
-		struct sway_container *current_container;
+		swayc_t *current_container;
 	} handler_context;
 };
 
@@ -416,8 +416,7 @@ void output_get_identifier(char *identifier, size_t len,
 	struct sway_output *output);
 struct output_config *new_output_config(const char *name);
 void merge_output_config(struct output_config *dst, struct output_config *src);
-void apply_output_config(struct output_config *oc,
-		struct sway_container *output);
+void apply_output_config(struct output_config *oc, swayc_t *output);
 void free_output_config(struct output_config *oc);
 
 /**
diff --git a/include/sway/container.h b/include/sway/container.h
new file mode 100644
index 00000000..f200a1a2
--- /dev/null
+++ b/include/sway/container.h
@@ -0,0 +1,169 @@
+#ifndef _SWAY_CONTAINER_H
+#define _SWAY_CONTAINER_H
+#include <stdint.h>
+#include <sys/types.h>
+#include <wlr/types/wlr_box.h>
+#include <wlr/types/wlr_surface.h>
+#include "list.h"
+
+typedef struct sway_container swayc_t;
+
+extern swayc_t root_container;
+
+struct sway_view;
+struct sway_seat;
+
+/**
+ * Different kinds of containers.
+ *
+ * This enum is in order. A container will never be inside of a container below
+ * it on this list.
+ */
+enum swayc_types {
+	C_ROOT,      /**< The root container. Only one of these ever exists. */
+	C_OUTPUT,    /**< An output (aka monitor, head, etc). */
+	C_WORKSPACE, /**< A workspace. */
+	C_CONTAINER, /**< A manually created container. */
+	C_VIEW,      /**< A view (aka window). */
+
+	C_TYPES,
+};
+
+/**
+ * Different ways to arrange a container.
+ */
+enum swayc_layouts {
+	L_NONE,     /**< Used for containers that have no layout (views, root) */
+	L_HORIZ,
+	L_VERT,
+	L_STACKED,
+	L_TABBED,
+	L_FLOATING, /**< A psuedo-container, removed from the tree, to hold floating windows */
+
+	/* Awesome/Monad style auto layouts */
+	L_AUTO_LEFT,
+	L_AUTO_RIGHT,
+	L_AUTO_TOP,
+	L_AUTO_BOTTOM,
+
+	L_AUTO_FIRST = L_AUTO_LEFT,
+	L_AUTO_LAST = L_AUTO_BOTTOM,
+
+	// Keep last
+	L_LAYOUTS,
+};
+
+enum swayc_border_types {
+	B_NONE,   /**< No border */
+	B_PIXEL,  /**< 1px border */
+	B_NORMAL, /**< Normal border with title bar */
+};
+
+struct sway_root;
+struct sway_output;
+struct sway_view;
+
+/**
+ * Stores information about a container.
+ *
+ * The tree is made of these. Views are containers that cannot have children.
+ */
+struct sway_container {
+	union {
+		// TODO: Encapsulate state for other node types as well like C_CONTAINER
+		struct sway_root *sway_root;             // C_ROOT
+		struct sway_output *sway_output;         // C_OUTPUT
+		struct sway_view *sway_view;             // C_VIEW
+	};
+
+	/**
+	 * A unique ID to identify this container. Primarily used in the
+	 * get_tree JSON output.
+	 */
+	size_t id;
+
+	char *name;
+
+	enum swayc_types type;
+	enum swayc_layouts layout;
+	enum swayc_layouts prev_layout;
+	enum swayc_layouts workspace_layout;
+
+	/**
+	 * The coordinates that this view appear at, relative to the output they
+	 * are located on (output containers have absolute coordinates).
+	 */
+	double x, y;
+
+	/**
+	 * Width and height of this container, without borders or gaps.
+	 */
+	double width, height;
+
+	list_t *children;
+
+	/**
+	 * The parent of this container. NULL for the root container.
+	 */
+	struct sway_container *parent;
+
+	/**
+	 * Number of master views in auto layouts.
+	 */
+	size_t nb_master;
+
+	/**
+	 * Number of slave groups (e.g. columns) in auto layouts.
+	 */
+	size_t nb_slave_groups;
+
+	/**
+	 * Marks applied to the container, list_t of char*.
+	 */
+	list_t *marks;
+
+	struct {
+		struct wl_signal destroy;
+	} events;
+};
+
+void swayc_descendants_of_type(swayc_t *root, enum swayc_types type,
+		void (*func)(swayc_t *item, void *data), void *data);
+
+swayc_t *new_output(struct sway_output *sway_output);
+swayc_t *new_workspace(swayc_t *output, const char *name);
+swayc_t *new_view(swayc_t *sibling, struct sway_view *sway_view);
+
+swayc_t *destroy_output(swayc_t *output);
+swayc_t *destroy_view(swayc_t *view);
+
+swayc_t *next_view_sibling(struct sway_seat *seat);
+
+/**
+ * Finds a container based on test criteria. Returns the first container that
+ * passes the test.
+ */
+swayc_t *swayc_by_test(swayc_t *container,
+		bool (*test)(swayc_t *view, void *data), void *data);
+/**
+ * Finds a parent container with the given swayc_type.
+ */
+swayc_t *swayc_parent_by_type(swayc_t *container, enum swayc_types type);
+/**
+ * Maps a container's children over a function.
+ */
+void container_map(swayc_t *container,
+		void (*f)(swayc_t *view, void *data), void *data);
+
+swayc_t *swayc_at(swayc_t *parent, double lx, double ly,
+		struct wlr_surface **surface, double *sx, double *sy);
+
+/**
+ * Apply the function for each child of the container breadth first.
+ */
+void container_for_each_bfs(swayc_t *con, void (*f)(swayc_t *con, void *data),
+		void *data);
+
+swayc_t *swayc_change_layout(swayc_t *container, enum swayc_layouts layout);
+
+#endif
diff --git a/include/sway/criteria.h b/include/sway/criteria.h
index ec256ddb..9b4b4bef 100644
--- a/include/sway/criteria.h
+++ b/include/sway/criteria.h
@@ -1,7 +1,7 @@
 #ifndef _SWAY_CRITERIA_H
 #define _SWAY_CRITERIA_H
 
-#include "tree/container.h"
+#include "container.h"
 #include "list.h"
 
 /**
@@ -31,12 +31,12 @@ char *extract_crit_tokens(list_t *tokens, const char *criteria);
 
 // Returns list of criteria that match given container. These criteria have
 // been set with `for_window` commands and have an associated cmdlist.
-list_t *criteria_for(struct sway_container *cont);
+list_t *criteria_for(swayc_t *cont);
 
 // Returns a list of all containers that match the given list of tokens.
 list_t *container_for_crit_tokens(list_t *tokens);
 
 // Returns true if any criteria in the given list matches this container
-bool criteria_any(struct sway_container *cont, list_t *criteria);
+bool criteria_any(swayc_t *cont, list_t *criteria);
 
 #endif
diff --git a/include/sway/input/input-manager.h b/include/sway/input/input-manager.h
index c6c73dba..eab7dc90 100644
--- a/include/sway/input/input-manager.h
+++ b/include/sway/input/input-manager.h
@@ -31,10 +31,10 @@ struct sway_input_manager *sway_input_manager_create(
 		struct sway_server *server);
 
 bool sway_input_manager_has_focus(struct sway_input_manager *input,
-		struct sway_container *container);
+		swayc_t *container);
 
 void sway_input_manager_set_focus(struct sway_input_manager *input,
-		struct sway_container *container);
+		swayc_t *container);
 
 void sway_input_manager_configure_xcursor(struct sway_input_manager *input);
 
diff --git a/include/sway/input/seat.h b/include/sway/input/seat.h
index 496bfd5d..1d55bec7 100644
--- a/include/sway/input/seat.h
+++ b/include/sway/input/seat.h
@@ -14,7 +14,7 @@ struct sway_seat_device {
 
 struct sway_seat_container {
 	struct sway_seat *seat;
-	struct sway_container *container;
+	swayc_t *container;
 
 	struct wl_list link; // sway_seat::focus_stack
 
@@ -54,9 +54,9 @@ void sway_seat_remove_device(struct sway_seat *seat,
 
 void sway_seat_configure_xcursor(struct sway_seat *seat);
 
-void sway_seat_set_focus(struct sway_seat *seat, struct sway_container *container);
+void sway_seat_set_focus(struct sway_seat *seat, swayc_t *container);
 
-struct sway_container *sway_seat_get_focus(struct sway_seat *seat);
+swayc_t *sway_seat_get_focus(struct sway_seat *seat);
 
 /**
  * Return the last container to be focused for the seat (or the most recently
@@ -67,11 +67,10 @@ struct sway_container *sway_seat_get_focus(struct sway_seat *seat);
  * is destroyed, or focus moves to a container with children and we need to
  * descend into the next leaf in focus order.
  */
-struct sway_container *sway_seat_get_focus_inactive(struct sway_seat *seat,
-		struct sway_container *container);
+swayc_t *sway_seat_get_focus_inactive(struct sway_seat *seat, swayc_t *container);
 
-struct sway_container *sway_seat_get_focus_by_type(struct sway_seat *seat,
-		enum sway_container_type type);
+swayc_t *sway_seat_get_focus_by_type(struct sway_seat *seat,
+		enum swayc_types type);
 
 void sway_seat_set_config(struct sway_seat *seat, struct seat_config *seat_config);
 
diff --git a/include/sway/ipc-json.h b/include/sway/ipc-json.h
index 3d2fdc4f..eef5a018 100644
--- a/include/sway/ipc-json.h
+++ b/include/sway/ipc-json.h
@@ -1,13 +1,13 @@
 #ifndef _SWAY_IPC_JSON_H
 #define _SWAY_IPC_JSON_H
 #include <json-c/json.h>
-#include "sway/tree/container.h"
+#include "sway/container.h"
 #include "sway/input/input-manager.h"
 
 json_object *ipc_json_get_version();
 
-json_object *ipc_json_describe_container(struct sway_container *c);
-json_object *ipc_json_describe_container_recursive(struct sway_container *c);
+json_object *ipc_json_describe_container(swayc_t *c);
+json_object *ipc_json_describe_container_recursive(swayc_t *c);
 json_object *ipc_json_describe_input(struct sway_input_device *device);
 
 #endif
diff --git a/include/sway/ipc-server.h b/include/sway/ipc-server.h
index d73006dc..bcf1c433 100644
--- a/include/sway/ipc-server.h
+++ b/include/sway/ipc-server.h
@@ -1,17 +1,15 @@
 #ifndef _SWAY_IPC_SERVER_H
 #define _SWAY_IPC_SERVER_H
 #include <sys/socket.h>
-#include "sway/tree/container.h"
+#include "sway/container.h"
 #include "ipc.h"
 
 struct sway_server;
 
 void ipc_init(struct sway_server *server);
-
 void ipc_terminate(void);
-
 struct sockaddr_un *ipc_user_sockaddr(void);
 
-void ipc_event_window(struct sway_container *window, const char *change);
+void ipc_event_window(swayc_t *window, const char *change);
 
 #endif
diff --git a/include/sway/layout.h b/include/sway/layout.h
new file mode 100644
index 00000000..e82c4442
--- /dev/null
+++ b/include/sway/layout.h
@@ -0,0 +1,43 @@
+#ifndef _SWAY_LAYOUT_H
+#define _SWAY_LAYOUT_H
+
+#include <wlr/types/wlr_output_layout.h>
+#include "sway/container.h"
+
+enum movement_direction {
+	MOVE_LEFT,
+	MOVE_RIGHT,
+	MOVE_UP,
+	MOVE_DOWN,
+	MOVE_PARENT,
+	MOVE_CHILD,
+	MOVE_NEXT,
+	MOVE_PREV,
+	MOVE_FIRST
+};
+
+struct sway_container;
+
+struct sway_root {
+	struct wlr_output_layout *output_layout;
+
+	struct wl_listener output_layout_change;
+
+	struct wl_list unmanaged_views; // sway_view::unmanaged_view_link
+
+	struct {
+		struct wl_signal new_container;
+	} events;
+};
+
+void init_layout(void);
+void add_child(struct sway_container *parent, struct sway_container *child);
+swayc_t *add_sibling(swayc_t *parent, swayc_t *child);
+struct sway_container *remove_child(struct sway_container *child);
+enum swayc_layouts default_layout(struct sway_container *output);
+void sort_workspaces(struct sway_container *output);
+void arrange_windows(struct sway_container *container, double width, double height);
+swayc_t *get_swayc_in_direction(swayc_t *container,
+		struct sway_seat *seat, enum movement_direction dir);
+
+#endif
diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
deleted file mode 100644
index 16df3ee7..00000000
--- a/include/sway/tree/container.h
+++ /dev/null
@@ -1,137 +0,0 @@
-#ifndef _SWAY_CONTAINER_H
-#define _SWAY_CONTAINER_H
-#include <stdint.h>
-#include <sys/types.h>
-#include <wlr/types/wlr_box.h>
-#include <wlr/types/wlr_surface.h>
-#include "list.h"
-
-extern struct sway_container root_container;
-
-struct sway_view;
-struct sway_seat;
-
-/**
- * Different kinds of containers.
- *
- * This enum is in order. A container will never be inside of a container below
- * it on this list.
- */
-enum sway_container_type {
-	C_ROOT,
-	C_OUTPUT,
-	C_WORKSPACE,
-	C_CONTAINER,
-	C_VIEW,
-
-	C_TYPES,
-};
-
-enum sway_container_layout {
-	L_NONE,
-	L_HORIZ,
-	L_VERT,
-	L_STACKED,
-	L_TABBED,
-	L_FLOATING,
-
-	// Keep last
-	L_LAYOUTS,
-};
-
-enum sway_container_border {
-	B_NONE,
-	B_PIXEL,
-	B_NORMAL,
-};
-
-struct sway_root;
-struct sway_output;
-struct sway_view;
-
-struct sway_container {
-	union {
-		// TODO: Encapsulate state for other node types as well like C_CONTAINER
-		struct sway_root *sway_root;
-		struct sway_output *sway_output;
-		struct sway_view *sway_view;
-	};
-
-	/**
-	 * A unique ID to identify this container. Primarily used in the
-	 * get_tree JSON output.
-	 */
-	size_t id;
-
-	char *name;
-
-	enum sway_container_type type;
-	enum sway_container_layout layout;
-	enum sway_container_layout prev_layout;
-	enum sway_container_layout workspace_layout;
-
-	// TODO convert to layout coordinates
-	double x, y;
-
-	// does not include borders or gaps.
-	double width, height;
-
-	list_t *children;
-
-	struct sway_container *parent;
-
-	list_t *marks; // list of char*
-
-	struct {
-		struct wl_signal destroy;
-	} events;
-};
-
-// TODO only one container create function and pass the type?
-struct sway_container *container_output_create(
-		struct sway_output *sway_output);
-
-struct sway_container *container_workspace_create(
-		struct sway_container *output, const char *name);
-
-struct sway_container *container_view_create(
-		struct sway_container *sibling, struct sway_view *sway_view);
-
-struct sway_container *container_output_destroy(struct sway_container *output);
-
-struct sway_container *container_view_destroy(struct sway_container *view);
-
-struct sway_container *container_set_layout(struct sway_container *container,
-		enum sway_container_layout layout);
-
-void container_descendents(struct sway_container *root,
-		enum sway_container_type type,
-		void (*func)(struct sway_container *item, void *data), void *data);
-
-/**
- * Finds a container based on test criteria. Returns the first container that
- * passes the test.
- */
-struct sway_container *container_find(struct sway_container *container,
-		bool (*test)(struct sway_container *view, void *data), void *data);
-
-/**
- * Finds a parent container with the given struct sway_containerype.
- */
-struct sway_container *container_parent(struct sway_container *container,
-		enum sway_container_type type);
-
-/**
- * Find a container at the given coordinates.
- */
-struct sway_container *container_at(struct sway_container *parent,
-		double lx, double ly, struct wlr_surface **surface,
-		double *sx, double *sy);
-
-/**
- * Apply the function for each child of the container breadth first.
- */
-void container_for_each_descendent(struct sway_container *container,
-		void (*f)(struct sway_container *container, void *data), void *data);
-
-#endif
diff --git a/include/sway/tree/layout.h b/include/sway/tree/layout.h
deleted file mode 100644
index ad52bdb0..00000000
--- a/include/sway/tree/layout.h
+++ /dev/null
@@ -1,52 +0,0 @@
-#ifndef _SWAY_LAYOUT_H
-#define _SWAY_LAYOUT_H
-
-#include <wlr/types/wlr_output_layout.h>
-#include "sway/tree/container.h"
-
-enum movement_direction {
-	MOVE_LEFT,
-	MOVE_RIGHT,
-	MOVE_UP,
-	MOVE_DOWN,
-	MOVE_PARENT,
-	MOVE_CHILD,
-	MOVE_NEXT,
-	MOVE_PREV,
-	MOVE_FIRST
-};
-
-struct sway_container;
-
-struct sway_root {
-	struct wlr_output_layout *output_layout;
-
-	struct wl_listener output_layout_change;
-
-	struct wl_list unmanaged_views; // sway_view::unmanaged_view_link
-
-	struct {
-		struct wl_signal new_container;
-	} events;
-};
-
-void layout_init(void);
-
-void container_add_child(struct sway_container *parent, struct sway_container *child);
-
-struct sway_container *container_add_sibling(struct sway_container *parent,
-		struct sway_container *child);
-
-struct sway_container *container_remove_child(struct sway_container *child);
-
-enum sway_container_layout container_get_default_layout(struct sway_container *output);
-
-void container_sort_workspaces(struct sway_container *output);
-
-void arrange_windows(struct sway_container *container,
-		double width, double height);
-
-struct sway_container *container_get_in_direction(struct sway_container
-		*container, struct sway_seat *seat, enum movement_direction dir);
-
-#endif
diff --git a/include/sway/tree/workspace.h b/include/sway/tree/workspace.h
deleted file mode 100644
index d73b29c1..00000000
--- a/include/sway/tree/workspace.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _SWAY_WORKSPACE_H
-#define _SWAY_WORKSPACE_H
-
-#include "sway/tree/container.h"
-
-extern char *prev_workspace_name;
-
-char *workspace_next_name(const char *output_name);
-
-struct sway_container *workspace_create(const char *name);
-
-bool workspace_switch(struct sway_container *workspace);
-
-struct sway_container *workspace_by_number(const char* name);
-
-struct sway_container *workspace_by_name(const char*);
-
-struct sway_container *workspace_output_next(struct sway_container *current);
-
-struct sway_container *workspace_next(struct sway_container *current);
-
-struct sway_container *workspace_output_prev(struct sway_container *current);
-
-struct sway_container *workspace_prev(struct sway_container *current);
-
-#endif
diff --git a/include/sway/tree/view.h b/include/sway/view.h
index e5f53f4e..b2886211 100644
--- a/include/sway/tree/view.h
+++ b/include/sway/view.h
@@ -62,6 +62,10 @@ enum sway_view_prop {
 	VIEW_PROP_INSTANCE,
 };
 
+/**
+ * sway_view is a state container for surfaces that are arranged in the sway
+ * tree (shell surfaces).
+ */
 struct sway_view {
 	enum sway_view_type type;
 	struct sway_container *swayc;
diff --git a/include/sway/workspace.h b/include/sway/workspace.h
new file mode 100644
index 00000000..fee54255
--- /dev/null
+++ b/include/sway/workspace.h
@@ -0,0 +1,20 @@
+#ifndef _SWAY_WORKSPACE_H
+#define _SWAY_WORKSPACE_H
+
+#include "sway/container.h"
+
+extern char *prev_workspace_name;
+
+char *workspace_next_name(const char *output_name);
+swayc_t *workspace_create(const char *name);
+bool workspace_switch(swayc_t *workspace);
+
+struct sway_container *workspace_by_number(const char* name);
+swayc_t *workspace_by_name(const char*);
+
+struct sway_container *workspace_output_next(swayc_t *current);
+struct sway_container *workspace_next(swayc_t *current);
+struct sway_container *workspace_output_prev(swayc_t *current);
+struct sway_container *workspace_prev(swayc_t *current);
+
+#endif