Revert "Merge pull request #1653 from swaywm/revert-1647-refactor-tree"

This reverts commit 472e81f35d689d67cda241acafda91c688d61046, reversing
changes made to 6b7841b11ff4cd35f54d69dc92029855893e5ce0.

1 files changed, 137 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
new file mode 100644
index 00000000..16df3ee7
--- /dev/null
+++ b/include/sway/tree/container.h
@@ -0,0 +1,137 @@
+#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