691 lines
26 KiB
C
691 lines
26 KiB
C
/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* load_layout.c: Restore (parts of) the layout, for example after an inplace
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* restart.
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*
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*/
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#include "all.h"
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#include <locale.h>
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#include <yajl/yajl_parse.h>
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/* TODO: refactor the whole parsing thing */
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static char *last_key;
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static int incomplete;
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static Con *json_node;
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static Con *to_focus;
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static bool parsing_swallows;
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static bool parsing_rect;
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static bool parsing_deco_rect;
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static bool parsing_window_rect;
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static bool parsing_geometry;
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static bool parsing_focus;
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static bool parsing_marks;
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struct Match *current_swallow;
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static bool swallow_is_empty;
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static int num_marks;
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/* We need to save each container that needs to be marked if we want to support
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* marking non-leaf containers. In their case, the end_map for their children is
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* called before their own end_map, so marking json_node would end up marking
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* the latest child. We can't just mark containers immediately after we parse a
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* mark because of #2511. */
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struct pending_marks {
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char *mark;
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Con *con_to_be_marked;
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} * marks;
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/* This list is used for reordering the focus stack after parsing the 'focus'
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* array. */
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struct focus_mapping {
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int old_id;
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TAILQ_ENTRY(focus_mapping)
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focus_mappings;
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};
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static TAILQ_HEAD(focus_mappings_head, focus_mapping) focus_mappings =
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TAILQ_HEAD_INITIALIZER(focus_mappings);
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static int json_start_map(void *ctx) {
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LOG("start of map, last_key = %s\n", last_key);
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if (parsing_swallows) {
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LOG("creating new swallow\n");
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current_swallow = smalloc(sizeof(Match));
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match_init(current_swallow);
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current_swallow->dock = M_DONTCHECK;
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TAILQ_INSERT_TAIL(&(json_node->swallow_head), current_swallow, matches);
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swallow_is_empty = true;
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} else {
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if (!parsing_rect && !parsing_deco_rect && !parsing_window_rect && !parsing_geometry) {
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if (last_key && strcasecmp(last_key, "floating_nodes") == 0) {
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DLOG("New floating_node\n");
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Con *ws = con_get_workspace(json_node);
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json_node = con_new_skeleton(NULL, NULL);
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json_node->name = NULL;
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json_node->parent = ws;
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DLOG("Parent is workspace = %p\n", ws);
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} else {
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Con *parent = json_node;
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json_node = con_new_skeleton(NULL, NULL);
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json_node->name = NULL;
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json_node->parent = parent;
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}
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/* json_node is incomplete and should be removed if parsing fails */
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incomplete++;
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DLOG("incomplete = %d\n", incomplete);
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}
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}
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return 1;
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}
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static int json_end_map(void *ctx) {
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LOG("end of map\n");
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if (!parsing_swallows && !parsing_rect && !parsing_deco_rect && !parsing_window_rect && !parsing_geometry) {
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/* Set a few default values to simplify manually crafted layout files. */
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if (json_node->layout == L_DEFAULT) {
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DLOG("Setting layout = L_SPLITH\n");
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json_node->layout = L_SPLITH;
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}
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/* Sanity check: swallow criteria don’t make any sense on a split
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* container. */
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if (con_is_split(json_node) > 0 && !TAILQ_EMPTY(&(json_node->swallow_head))) {
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DLOG("sanity check: removing swallows specification from split container\n");
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while (!TAILQ_EMPTY(&(json_node->swallow_head))) {
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Match *match = TAILQ_FIRST(&(json_node->swallow_head));
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TAILQ_REMOVE(&(json_node->swallow_head), match, matches);
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match_free(match);
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free(match);
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}
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}
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if (json_node->type == CT_WORKSPACE) {
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/* Ensure the workspace has a name. */
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DLOG("Attaching workspace. name = %s\n", json_node->name);
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if (json_node->name == NULL || strcmp(json_node->name, "") == 0) {
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json_node->name = sstrdup("unnamed");
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}
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/* Prevent name clashes when appending a workspace, e.g. when the
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* user tries to restore a workspace called “1” but already has a
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* workspace called “1”. */
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char *base = sstrdup(json_node->name);
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int cnt = 1;
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while (get_existing_workspace_by_name(json_node->name) != NULL) {
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FREE(json_node->name);
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sasprintf(&(json_node->name), "%s_%d", base, cnt++);
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}
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free(base);
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/* Set num accordingly so that i3bar will properly sort it. */
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json_node->num = ws_name_to_number(json_node->name);
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}
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// When appending JSON layout files that only contain the workspace
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// _contents_, we might not have an upfront signal that the
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// container we’re currently parsing is a floating container (like
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// the “floating_nodes” key of the workspace container itself).
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// That’s why we make sure the con is attached at the right place
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// in the hierarchy in case it’s floating.
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if (json_node->type == CT_FLOATING_CON) {
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DLOG("fixing parent which currently is %p / %s\n", json_node->parent, json_node->parent->name);
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json_node->parent = con_get_workspace(json_node->parent);
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// Also set a size if none was supplied, otherwise the placeholder
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// window cannot be created as X11 requests with width=0 or
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// height=0 are invalid.
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if (rect_equals(json_node->rect, (Rect){0, 0, 0, 0})) {
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DLOG("Geometry not set, combining children\n");
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Con *child;
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TAILQ_FOREACH (child, &(json_node->nodes_head), nodes) {
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DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
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json_node->rect.width += child->geometry.width;
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json_node->rect.height = max(json_node->rect.height, child->geometry.height);
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}
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}
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floating_check_size(json_node, false);
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}
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if (num_marks > 0) {
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for (int i = 0; i < num_marks; i++) {
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Con *con = marks[i].con_to_be_marked;
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char *mark = marks[i].mark;
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con_mark(con, mark, MM_ADD);
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free(mark);
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}
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FREE(marks);
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num_marks = 0;
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}
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LOG("attaching\n");
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con_attach(json_node, json_node->parent, true);
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LOG("Creating window\n");
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x_con_init(json_node);
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/* Fix erroneous JSON input regarding floating containers to avoid
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* crashing, see #3901. */
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const int old_floating_mode = json_node->floating;
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if (old_floating_mode >= FLOATING_AUTO_ON && json_node->parent->type != CT_FLOATING_CON) {
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LOG("Fixing floating node without CT_FLOATING_CON parent\n");
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/* Force floating_enable to work */
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json_node->floating = FLOATING_AUTO_OFF;
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floating_enable(json_node, false);
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json_node->floating = old_floating_mode;
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}
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json_node = json_node->parent;
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incomplete--;
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DLOG("incomplete = %d\n", incomplete);
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}
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if (parsing_swallows && swallow_is_empty) {
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/* We parsed an empty swallow definition. This is an invalid layout
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* definition, hence we reject it. */
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ELOG("Layout file is invalid: found an empty swallow definition.\n");
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return 0;
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}
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parsing_rect = false;
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parsing_deco_rect = false;
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parsing_window_rect = false;
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parsing_geometry = false;
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return 1;
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}
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static int json_end_array(void *ctx) {
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LOG("end of array\n");
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if (!parsing_swallows && !parsing_focus && !parsing_marks) {
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con_fix_percent(json_node);
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}
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if (parsing_swallows) {
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parsing_swallows = false;
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}
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if (parsing_marks) {
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parsing_marks = false;
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}
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if (parsing_focus) {
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/* Clear the list of focus mappings */
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struct focus_mapping *mapping;
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TAILQ_FOREACH_REVERSE (mapping, &focus_mappings, focus_mappings_head, focus_mappings) {
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LOG("focus (reverse) %d\n", mapping->old_id);
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Con *con;
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TAILQ_FOREACH (con, &(json_node->focus_head), focused) {
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if (con->old_id != mapping->old_id)
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continue;
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LOG("got it! %p\n", con);
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/* Move this entry to the top of the focus list. */
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TAILQ_REMOVE(&(json_node->focus_head), con, focused);
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TAILQ_INSERT_HEAD(&(json_node->focus_head), con, focused);
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break;
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}
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}
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while (!TAILQ_EMPTY(&focus_mappings)) {
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mapping = TAILQ_FIRST(&focus_mappings);
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TAILQ_REMOVE(&focus_mappings, mapping, focus_mappings);
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free(mapping);
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}
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parsing_focus = false;
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}
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return 1;
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}
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static int json_key(void *ctx, const unsigned char *val, size_t len) {
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LOG("key: %.*s\n", (int)len, val);
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FREE(last_key);
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last_key = scalloc(len + 1, 1);
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memcpy(last_key, val, len);
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if (strcasecmp(last_key, "swallows") == 0)
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parsing_swallows = true;
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if (strcasecmp(last_key, "rect") == 0)
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parsing_rect = true;
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if (strcasecmp(last_key, "deco_rect") == 0)
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parsing_deco_rect = true;
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if (strcasecmp(last_key, "window_rect") == 0)
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parsing_window_rect = true;
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if (strcasecmp(last_key, "geometry") == 0)
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parsing_geometry = true;
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if (strcasecmp(last_key, "focus") == 0)
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parsing_focus = true;
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if (strcasecmp(last_key, "marks") == 0) {
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num_marks = 0;
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parsing_marks = true;
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}
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return 1;
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}
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static int json_string(void *ctx, const unsigned char *val, size_t len) {
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LOG("string: %.*s for key %s\n", (int)len, val, last_key);
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if (parsing_swallows) {
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char *sval;
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sasprintf(&sval, "%.*s", len, val);
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if (strcasecmp(last_key, "class") == 0) {
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current_swallow->class = regex_new(sval);
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swallow_is_empty = false;
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} else if (strcasecmp(last_key, "instance") == 0) {
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current_swallow->instance = regex_new(sval);
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swallow_is_empty = false;
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} else if (strcasecmp(last_key, "window_role") == 0) {
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current_swallow->window_role = regex_new(sval);
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swallow_is_empty = false;
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} else if (strcasecmp(last_key, "title") == 0) {
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current_swallow->title = regex_new(sval);
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swallow_is_empty = false;
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} else {
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ELOG("swallow key %s unknown\n", last_key);
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}
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free(sval);
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} else if (parsing_marks) {
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char *mark;
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sasprintf(&mark, "%.*s", (int)len, val);
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marks = srealloc(marks, (++num_marks) * sizeof(struct pending_marks));
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marks[num_marks - 1].mark = sstrdup(mark);
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marks[num_marks - 1].con_to_be_marked = json_node;
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} else {
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if (strcasecmp(last_key, "name") == 0) {
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json_node->name = scalloc(len + 1, 1);
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memcpy(json_node->name, val, len);
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} else if (strcasecmp(last_key, "title_format") == 0) {
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json_node->title_format = scalloc(len + 1, 1);
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memcpy(json_node->title_format, val, len);
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} else if (strcasecmp(last_key, "sticky_group") == 0) {
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json_node->sticky_group = scalloc(len + 1, 1);
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memcpy(json_node->sticky_group, val, len);
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LOG("sticky_group of this container is %s\n", json_node->sticky_group);
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} else if (strcasecmp(last_key, "orientation") == 0) {
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/* Upgrade path from older versions of i3 (doing an inplace restart
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* to a newer version):
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* "orientation" is dumped before "layout". Therefore, we store
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* whether the orientation was horizontal or vertical in the
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* last_split_layout. When we then encounter layout == "default",
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* we will use the last_split_layout as layout instead. */
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "none") == 0 ||
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strcasecmp(buf, "horizontal") == 0)
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json_node->last_split_layout = L_SPLITH;
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else if (strcasecmp(buf, "vertical") == 0)
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json_node->last_split_layout = L_SPLITV;
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else
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LOG("Unhandled orientation: %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "border") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "none") == 0)
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json_node->border_style = BS_NONE;
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else if (strcasecmp(buf, "1pixel") == 0) {
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json_node->border_style = BS_PIXEL;
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json_node->current_border_width = 1;
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} else if (strcasecmp(buf, "pixel") == 0)
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json_node->border_style = BS_PIXEL;
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else if (strcasecmp(buf, "normal") == 0)
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json_node->border_style = BS_NORMAL;
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else
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LOG("Unhandled \"border\": %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "type") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "root") == 0)
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json_node->type = CT_ROOT;
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else if (strcasecmp(buf, "output") == 0)
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json_node->type = CT_OUTPUT;
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else if (strcasecmp(buf, "con") == 0)
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json_node->type = CT_CON;
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else if (strcasecmp(buf, "floating_con") == 0)
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json_node->type = CT_FLOATING_CON;
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else if (strcasecmp(buf, "workspace") == 0)
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json_node->type = CT_WORKSPACE;
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else if (strcasecmp(buf, "dockarea") == 0)
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json_node->type = CT_DOCKAREA;
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else
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LOG("Unhandled \"type\": %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "layout") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "default") == 0)
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/* This set above when we read "orientation". */
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json_node->layout = json_node->last_split_layout;
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else if (strcasecmp(buf, "stacked") == 0)
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json_node->layout = L_STACKED;
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else if (strcasecmp(buf, "tabbed") == 0)
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json_node->layout = L_TABBED;
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else if (strcasecmp(buf, "dockarea") == 0)
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json_node->layout = L_DOCKAREA;
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else if (strcasecmp(buf, "output") == 0)
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json_node->layout = L_OUTPUT;
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else if (strcasecmp(buf, "splith") == 0)
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json_node->layout = L_SPLITH;
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else if (strcasecmp(buf, "splitv") == 0)
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json_node->layout = L_SPLITV;
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else
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LOG("Unhandled \"layout\": %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "workspace_layout") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "default") == 0)
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json_node->workspace_layout = L_DEFAULT;
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else if (strcasecmp(buf, "stacked") == 0)
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json_node->workspace_layout = L_STACKED;
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else if (strcasecmp(buf, "tabbed") == 0)
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json_node->workspace_layout = L_TABBED;
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else
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LOG("Unhandled \"workspace_layout\": %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "last_split_layout") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "splith") == 0)
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json_node->last_split_layout = L_SPLITH;
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else if (strcasecmp(buf, "splitv") == 0)
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json_node->last_split_layout = L_SPLITV;
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else
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LOG("Unhandled \"last_splitlayout\": %s\n", buf);
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free(buf);
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} else if (strcasecmp(last_key, "mark") == 0) {
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DLOG("Found deprecated key \"mark\".\n");
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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con_mark(json_node, buf, MM_REPLACE);
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} else if (strcasecmp(last_key, "floating") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "auto_off") == 0)
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json_node->floating = FLOATING_AUTO_OFF;
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else if (strcasecmp(buf, "auto_on") == 0)
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json_node->floating = FLOATING_AUTO_ON;
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else if (strcasecmp(buf, "user_off") == 0)
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json_node->floating = FLOATING_USER_OFF;
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else if (strcasecmp(buf, "user_on") == 0)
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json_node->floating = FLOATING_USER_ON;
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free(buf);
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} else if (strcasecmp(last_key, "scratchpad_state") == 0) {
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char *buf = NULL;
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sasprintf(&buf, "%.*s", (int)len, val);
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if (strcasecmp(buf, "none") == 0)
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json_node->scratchpad_state = SCRATCHPAD_NONE;
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else if (strcasecmp(buf, "fresh") == 0)
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json_node->scratchpad_state = SCRATCHPAD_FRESH;
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else if (strcasecmp(buf, "changed") == 0)
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json_node->scratchpad_state = SCRATCHPAD_CHANGED;
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free(buf);
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} else if (strcasecmp(last_key, "previous_workspace_name") == 0) {
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FREE(previous_workspace_name);
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previous_workspace_name = sstrndup((const char *)val, len);
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}
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}
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return 1;
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}
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static int json_int(void *ctx, long long val) {
|
||
LOG("int %lld for key %s\n", val, last_key);
|
||
/* For backwards compatibility with i3 < 4.8 */
|
||
if (strcasecmp(last_key, "type") == 0)
|
||
json_node->type = val;
|
||
|
||
if (strcasecmp(last_key, "fullscreen_mode") == 0)
|
||
json_node->fullscreen_mode = val;
|
||
|
||
if (strcasecmp(last_key, "num") == 0)
|
||
json_node->num = val;
|
||
|
||
if (strcasecmp(last_key, "current_border_width") == 0)
|
||
json_node->current_border_width = val;
|
||
|
||
if (strcasecmp(last_key, "depth") == 0)
|
||
json_node->depth = val;
|
||
|
||
if (!parsing_swallows && strcasecmp(last_key, "id") == 0)
|
||
json_node->old_id = val;
|
||
|
||
if (parsing_focus) {
|
||
struct focus_mapping *focus_mapping = scalloc(1, sizeof(struct focus_mapping));
|
||
focus_mapping->old_id = val;
|
||
TAILQ_INSERT_TAIL(&focus_mappings, focus_mapping, focus_mappings);
|
||
}
|
||
|
||
if (parsing_rect || parsing_window_rect || parsing_geometry) {
|
||
Rect *r;
|
||
if (parsing_rect)
|
||
r = &(json_node->rect);
|
||
else if (parsing_window_rect)
|
||
r = &(json_node->window_rect);
|
||
else
|
||
r = &(json_node->geometry);
|
||
if (strcasecmp(last_key, "x") == 0)
|
||
r->x = val;
|
||
else if (strcasecmp(last_key, "y") == 0)
|
||
r->y = val;
|
||
else if (strcasecmp(last_key, "width") == 0)
|
||
r->width = val;
|
||
else if (strcasecmp(last_key, "height") == 0)
|
||
r->height = val;
|
||
else
|
||
ELOG("WARNING: unknown key %s in rect\n", last_key);
|
||
DLOG("rect now: (%d, %d, %d, %d)\n",
|
||
r->x, r->y, r->width, r->height);
|
||
}
|
||
if (parsing_swallows) {
|
||
if (strcasecmp(last_key, "id") == 0) {
|
||
current_swallow->id = val;
|
||
swallow_is_empty = false;
|
||
}
|
||
if (strcasecmp(last_key, "dock") == 0) {
|
||
current_swallow->dock = val;
|
||
swallow_is_empty = false;
|
||
}
|
||
if (strcasecmp(last_key, "insert_where") == 0) {
|
||
current_swallow->insert_where = val;
|
||
swallow_is_empty = false;
|
||
}
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static int json_bool(void *ctx, int val) {
|
||
LOG("bool %d for key %s\n", val, last_key);
|
||
if (strcasecmp(last_key, "focused") == 0 && val) {
|
||
to_focus = json_node;
|
||
}
|
||
|
||
if (strcasecmp(last_key, "sticky") == 0)
|
||
json_node->sticky = val;
|
||
|
||
if (parsing_swallows) {
|
||
if (strcasecmp(last_key, "restart_mode") == 0) {
|
||
current_swallow->restart_mode = val;
|
||
swallow_is_empty = false;
|
||
}
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static int json_double(void *ctx, double val) {
|
||
LOG("double %f for key %s\n", val, last_key);
|
||
if (strcasecmp(last_key, "percent") == 0) {
|
||
json_node->percent = val;
|
||
}
|
||
return 1;
|
||
}
|
||
|
||
static json_content_t content_result;
|
||
static int content_level;
|
||
|
||
static int json_determine_content_deeper(void *ctx) {
|
||
content_level++;
|
||
return 1;
|
||
}
|
||
|
||
static int json_determine_content_shallower(void *ctx) {
|
||
content_level--;
|
||
return 1;
|
||
}
|
||
|
||
static int json_determine_content_string(void *ctx, const unsigned char *val, size_t len) {
|
||
if (strcasecmp(last_key, "type") != 0 || content_level > 1)
|
||
return 1;
|
||
|
||
DLOG("string = %.*s, last_key = %s\n", (int)len, val, last_key);
|
||
if (strncasecmp((const char *)val, "workspace", len) == 0)
|
||
content_result = JSON_CONTENT_WORKSPACE;
|
||
return 0;
|
||
}
|
||
|
||
/*
|
||
* Returns true if the provided JSON could be parsed by yajl.
|
||
*
|
||
*/
|
||
bool json_validate(const char *buf, const size_t len) {
|
||
bool valid = true;
|
||
yajl_handle hand = yajl_alloc(NULL, NULL, NULL);
|
||
/* Allowing comments allows for more user-friendly layout files. */
|
||
yajl_config(hand, yajl_allow_comments, true);
|
||
/* Allow multiple values, i.e. multiple nodes to attach */
|
||
yajl_config(hand, yajl_allow_multiple_values, true);
|
||
|
||
setlocale(LC_NUMERIC, "C");
|
||
if (yajl_parse(hand, (const unsigned char *)buf, len) != yajl_status_ok) {
|
||
unsigned char *str = yajl_get_error(hand, 1, (const unsigned char *)buf, len);
|
||
ELOG("JSON parsing error: %s\n", str);
|
||
yajl_free_error(hand, str);
|
||
valid = false;
|
||
}
|
||
setlocale(LC_NUMERIC, "");
|
||
|
||
yajl_complete_parse(hand);
|
||
yajl_free(hand);
|
||
|
||
return valid;
|
||
}
|
||
|
||
/* 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) {
|
||
// We default to JSON_CONTENT_CON because it is legal to not include
|
||
// “"type": "con"” in the JSON files for better readability.
|
||
content_result = JSON_CONTENT_CON;
|
||
content_level = 0;
|
||
static yajl_callbacks callbacks = {
|
||
.yajl_string = json_determine_content_string,
|
||
.yajl_map_key = json_key,
|
||
.yajl_start_array = json_determine_content_deeper,
|
||
.yajl_start_map = json_determine_content_deeper,
|
||
.yajl_end_map = json_determine_content_shallower,
|
||
.yajl_end_array = json_determine_content_shallower,
|
||
};
|
||
yajl_handle hand = yajl_alloc(&callbacks, NULL, NULL);
|
||
/* Allowing comments allows for more user-friendly layout files. */
|
||
yajl_config(hand, yajl_allow_comments, true);
|
||
/* Allow multiple values, i.e. multiple nodes to attach */
|
||
yajl_config(hand, yajl_allow_multiple_values, true);
|
||
setlocale(LC_NUMERIC, "C");
|
||
const yajl_status stat = yajl_parse(hand, (const unsigned char *)buf, len);
|
||
if (stat != yajl_status_ok && stat != yajl_status_client_canceled) {
|
||
unsigned char *str = yajl_get_error(hand, 1, (const unsigned char *)buf, len);
|
||
ELOG("JSON parsing error: %s\n", str);
|
||
yajl_free_error(hand, str);
|
||
}
|
||
|
||
setlocale(LC_NUMERIC, "");
|
||
yajl_complete_parse(hand);
|
||
yajl_free(hand);
|
||
|
||
return content_result;
|
||
}
|
||
|
||
void tree_append_json(Con *con, const char *buf, const size_t len, char **errormsg) {
|
||
static yajl_callbacks callbacks = {
|
||
.yajl_boolean = json_bool,
|
||
.yajl_integer = json_int,
|
||
.yajl_double = json_double,
|
||
.yajl_string = json_string,
|
||
.yajl_start_map = json_start_map,
|
||
.yajl_map_key = json_key,
|
||
.yajl_end_map = json_end_map,
|
||
.yajl_end_array = json_end_array,
|
||
};
|
||
yajl_handle hand = yajl_alloc(&callbacks, NULL, NULL);
|
||
/* Allowing comments allows for more user-friendly layout files. */
|
||
yajl_config(hand, yajl_allow_comments, true);
|
||
/* Allow multiple values, i.e. multiple nodes to attach */
|
||
yajl_config(hand, yajl_allow_multiple_values, true);
|
||
/* We don't need to validate that the input is valid UTF8 here.
|
||
* tree_append_json is called in two cases:
|
||
* 1. With the append_layout command. json_validate is called first and will
|
||
* fail on invalid UTF8 characters so we don't need to recheck.
|
||
* 2. With an in-place restart. The rest of the codebase should be
|
||
* responsible for producing valid UTF8 JSON output. If not,
|
||
* tree_append_json will just preserve invalid UTF8 strings in the tree
|
||
* instead of failing to parse the layout file which could lead to
|
||
* problems like in #3156.
|
||
* Either way, disabling UTF8 validation slightly speeds up yajl. */
|
||
yajl_config(hand, yajl_dont_validate_strings, true);
|
||
json_node = con;
|
||
to_focus = NULL;
|
||
incomplete = 0;
|
||
parsing_swallows = false;
|
||
parsing_rect = false;
|
||
parsing_deco_rect = false;
|
||
parsing_window_rect = false;
|
||
parsing_geometry = false;
|
||
parsing_focus = false;
|
||
parsing_marks = false;
|
||
setlocale(LC_NUMERIC, "C");
|
||
const yajl_status stat = yajl_parse(hand, (const unsigned char *)buf, len);
|
||
if (stat != yajl_status_ok) {
|
||
unsigned char *str = yajl_get_error(hand, 1, (const unsigned char *)buf, len);
|
||
ELOG("JSON parsing error: %s\n", str);
|
||
if (errormsg != NULL)
|
||
*errormsg = sstrdup((const char *)str);
|
||
yajl_free_error(hand, str);
|
||
while (incomplete-- > 0) {
|
||
Con *parent = json_node->parent;
|
||
DLOG("freeing incomplete container %p\n", json_node);
|
||
if (json_node == to_focus) {
|
||
to_focus = NULL;
|
||
}
|
||
con_free(json_node);
|
||
json_node = parent;
|
||
}
|
||
}
|
||
|
||
/* In case not all containers were restored, we need to fix the
|
||
* percentages, otherwise i3 will crash immediately when rendering the
|
||
* next time. */
|
||
con_fix_percent(con);
|
||
|
||
setlocale(LC_NUMERIC, "");
|
||
yajl_complete_parse(hand);
|
||
yajl_free(hand);
|
||
|
||
if (to_focus) {
|
||
con_activate(to_focus);
|
||
}
|
||
}
|