gri3-wm/include/load_layout.h

/*
 * vim:ts=4:sw=4:expandtab
 *
 * i3 - an improved dynamic tiling window manager
 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
 *
 * load_layout.c: Restore (parts of) the layout, for example after an inplace
 *                restart.
 *
 */
#pragma once

#include <config.h>

typedef enum {
    // We could not determine the content of the JSON file. This typically
    // means it’s unreadable or contains garbage.
    JSON_CONTENT_UNKNOWN = 0,

    // The JSON file contains a “normal” container, i.e. a container to be
    // appended to an existing workspace (or split container!).
    JSON_CONTENT_CON = 1,

    // The JSON file contains a workspace container, which needs to be appended
    // to the output (next to the other workspaces) with special care to avoid
    // naming conflicts and ensuring that the workspace _has_ a name.
    JSON_CONTENT_WORKSPACE = 2,
} json_content_t;

/* Parses the given JSON file until it encounters the first “type” property to
 * determine whether the file contains workspaces or regular containers, which
 * is important to know when deciding where (and how) to append the contents.
 * */
json_content_t json_determine_content(const char *buf, const size_t len);

/**
 * Returns true if the provided JSON could be parsed by yajl.
 *
 */
bool json_validate(const char *buf, const size_t len);

void tree_append_json(Con *con, const char *buf, const size_t len, char **errormsg);