]> git.sur5r.net Git - i3/i3/blobdiff - src/load_layout.c
generate-command-parser: make input/output configurable
[i3/i3] / src / load_layout.c
index 37322c4ea3857f2b92e85f05c5ee843054f8e975..ca4c87ef827b1537735a1c46c407e488ef7362a9 100644 (file)
@@ -1,14 +1,22 @@
+#undef I3__FILE__
+#define I3__FILE__ "load_layout.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
+ * i3 - an improved dynamic tiling window manager
+ * © 2009-2012 Michael Stapelberg and contributors (see also: LICENSE)
+ *
+ * load_layout.c: Restore (parts of) the layout, for example after an inplace
+ *                restart.
+ *
  */
+#include "all.h"
+
 #include <yajl/yajl_common.h>
 #include <yajl/yajl_gen.h>
 #include <yajl/yajl_parse.h>
 #include <yajl/yajl_version.h>
 
-#include "all.h"
-
 /* TODO: refactor the whole parsing thing */
 
 static char *last_key;
@@ -18,8 +26,19 @@ static bool parsing_swallows;
 static bool parsing_rect;
 static bool parsing_window_rect;
 static bool parsing_geometry;
+static bool parsing_focus;
 struct Match *current_swallow;
 
+/* This list is used for reordering the focus stack after parsing the 'focus'
+ * array. */
+struct focus_mapping {
+    int old_id;
+    TAILQ_ENTRY(focus_mapping) focus_mappings;
+};
+
+static TAILQ_HEAD(focus_mappings_head, focus_mapping) focus_mappings =
+  TAILQ_HEAD_INITIALIZER(focus_mappings);
+
 static int json_start_map(void *ctx) {
     LOG("start of map, last_key = %s\n", last_key);
     if (parsing_swallows) {
@@ -64,6 +83,29 @@ static int json_end_map(void *ctx) {
 static int json_end_array(void *ctx) {
     LOG("end of array\n");
     parsing_swallows = false;
+    if (parsing_focus) {
+        /* Clear the list of focus mappings */
+        struct focus_mapping *mapping;
+        TAILQ_FOREACH_REVERSE(mapping, &focus_mappings, focus_mappings_head, focus_mappings) {
+            LOG("focus (reverse) %d\n", mapping->old_id);
+            Con *con;
+            TAILQ_FOREACH(con, &(json_node->focus_head), focused) {
+                if (con->old_id != mapping->old_id)
+                    continue;
+                LOG("got it! %p\n", con);
+                /* Move this entry to the top of the focus list. */
+                TAILQ_REMOVE(&(json_node->focus_head), con, focused);
+                TAILQ_INSERT_HEAD(&(json_node->focus_head), con, focused);
+                break;
+            }
+        }
+        while (!TAILQ_EMPTY(&focus_mappings)) {
+            mapping = TAILQ_FIRST(&focus_mappings);
+            TAILQ_REMOVE(&focus_mappings, mapping, focus_mappings);
+            free(mapping);
+        }
+        parsing_focus = false;
+    }
     return 1;
 }
 
@@ -76,15 +118,21 @@ static int json_key(void *ctx, const unsigned char *val, size_t len) {
     FREE(last_key);
     last_key = scalloc((len+1) * sizeof(char));
     memcpy(last_key, val, len);
-    if (strcasecmp(last_key, "swallows") == 0) {
+    if (strcasecmp(last_key, "swallows") == 0)
         parsing_swallows = true;
-    }
+
     if (strcasecmp(last_key, "rect") == 0)
         parsing_rect = true;
+
     if (strcasecmp(last_key, "window_rect") == 0)
         parsing_window_rect = true;
+
     if (strcasecmp(last_key, "geometry") == 0)
         parsing_geometry = true;
+
+    if (strcasecmp(last_key, "focus") == 0)
+        parsing_focus = true;
+
     return 1;
 }
 
@@ -93,7 +141,7 @@ static int json_string(void *ctx, const unsigned char *val, size_t len) {
 #else
 static int json_string(void *ctx, const unsigned char *val, unsigned int len) {
 #endif
-    LOG("string: %.*s for key %s\n", len, val, last_key);
+    LOG("string: %.*s for key %s\n", (int)len, val, last_key);
     if (parsing_swallows) {
         /* TODO: the other swallowing keys */
         if (strcasecmp(last_key, "class") == 0) {
@@ -110,32 +158,41 @@ static int json_string(void *ctx, const unsigned char *val, unsigned int len) {
             memcpy(json_node->sticky_group, val, len);
             LOG("sticky_group of this container is %s\n", json_node->sticky_group);
         } else if (strcasecmp(last_key, "orientation") == 0) {
+            /* Upgrade path from older versions of i3 (doing an inplace restart
+             * to a newer version):
+             * "orientation" is dumped before "layout". Therefore, we store
+             * whether the orientation was horizontal or vertical in the
+             * last_split_layout. When we then encounter layout == "default",
+             * we will use the last_split_layout as layout instead. */
             char *buf = NULL;
-            asprintf(&buf, "%.*s", (int)len, val);
-            if (strcasecmp(buf, "none") == 0)
-                json_node->orientation = NO_ORIENTATION;
-            else if (strcasecmp(buf, "horizontal") == 0)
-                json_node->orientation = HORIZ;
+            sasprintf(&buf, "%.*s", (int)len, val);
+            if (strcasecmp(buf, "none") == 0 ||
+                strcasecmp(buf, "horizontal") == 0)
+                json_node->last_split_layout = L_SPLITH;
             else if (strcasecmp(buf, "vertical") == 0)
-                json_node->orientation = VERT;
+                json_node->last_split_layout = L_SPLITV;
             else LOG("Unhandled orientation: %s\n", buf);
             free(buf);
         } else if (strcasecmp(last_key, "border") == 0) {
             char *buf = NULL;
-            asprintf(&buf, "%.*s", (int)len, val);
+            sasprintf(&buf, "%.*s", (int)len, val);
             if (strcasecmp(buf, "none") == 0)
                 json_node->border_style = BS_NONE;
-            else if (strcasecmp(buf, "1pixel") == 0)
-                json_node->border_style = BS_1PIXEL;
+            else if (strcasecmp(buf, "1pixel") == 0) {
+                json_node->border_style = BS_PIXEL;
+                json_node->current_border_width = 1;
+            } else if (strcasecmp(buf, "pixel") == 0)
+                json_node->border_style = BS_PIXEL;
             else if (strcasecmp(buf, "normal") == 0)
                 json_node->border_style = BS_NORMAL;
             else LOG("Unhandled \"border\": %s\n", buf);
             free(buf);
         } else if (strcasecmp(last_key, "layout") == 0) {
             char *buf = NULL;
-            asprintf(&buf, "%.*s", (int)len, val);
+            sasprintf(&buf, "%.*s", (int)len, val);
             if (strcasecmp(buf, "default") == 0)
-                json_node->layout = L_DEFAULT;
+                /* This set above when we read "orientation". */
+                json_node->layout = json_node->last_split_layout;
             else if (strcasecmp(buf, "stacked") == 0)
                 json_node->layout = L_STACKED;
             else if (strcasecmp(buf, "tabbed") == 0)
@@ -144,12 +201,58 @@ static int json_string(void *ctx, const unsigned char *val, unsigned int len) {
                 json_node->layout = L_DOCKAREA;
             else if (strcasecmp(buf, "output") == 0)
                 json_node->layout = L_OUTPUT;
+            else if (strcasecmp(buf, "splith") == 0)
+                json_node->layout = L_SPLITH;
+            else if (strcasecmp(buf, "splitv") == 0)
+                json_node->layout = L_SPLITV;
             else LOG("Unhandled \"layout\": %s\n", buf);
             free(buf);
+        } else if (strcasecmp(last_key, "workspace_layout") == 0) {
+            char *buf = NULL;
+            sasprintf(&buf, "%.*s", (int)len, val);
+            if (strcasecmp(buf, "default") == 0)
+                json_node->workspace_layout = L_DEFAULT;
+            else if (strcasecmp(buf, "stacked") == 0)
+                json_node->workspace_layout = L_STACKED;
+            else if (strcasecmp(buf, "tabbed") == 0)
+                json_node->workspace_layout = L_TABBED;
+            else LOG("Unhandled \"workspace_layout\": %s\n", buf);
+            free(buf);
+        } else if (strcasecmp(last_key, "last_split_layout") == 0) {
+            char *buf = NULL;
+            sasprintf(&buf, "%.*s", (int)len, val);
+            if (strcasecmp(buf, "splith") == 0)
+                json_node->last_split_layout = L_SPLITH;
+            else if (strcasecmp(buf, "splitv") == 0)
+                json_node->last_split_layout = L_SPLITV;
+            else LOG("Unhandled \"last_splitlayout\": %s\n", buf);
+            free(buf);
         } else if (strcasecmp(last_key, "mark") == 0) {
             char *buf = NULL;
-            asprintf(&buf, "%.*s", (int)len, val);
+            sasprintf(&buf, "%.*s", (int)len, val);
             json_node->mark = buf;
+        } else if (strcasecmp(last_key, "floating") == 0) {
+            char *buf = NULL;
+            sasprintf(&buf, "%.*s", (int)len, val);
+            if (strcasecmp(buf, "auto_off") == 0)
+                json_node->floating = FLOATING_AUTO_OFF;
+            else if (strcasecmp(buf, "auto_on") == 0)
+                json_node->floating = FLOATING_AUTO_ON;
+            else if (strcasecmp(buf, "user_off") == 0)
+                json_node->floating = FLOATING_USER_OFF;
+            else if (strcasecmp(buf, "user_on") == 0)
+                json_node->floating = FLOATING_USER_ON;
+            free(buf);
+        } else if (strcasecmp(last_key, "scratchpad_state") == 0) {
+            char *buf = NULL;
+            sasprintf(&buf, "%.*s", (int)len, val);
+            if (strcasecmp(buf, "none") == 0)
+                json_node->scratchpad_state = SCRATCHPAD_NONE;
+            else if (strcasecmp(buf, "fresh") == 0)
+                json_node->scratchpad_state = SCRATCHPAD_FRESH;
+            else if (strcasecmp(buf, "changed") == 0)
+                json_node->scratchpad_state = SCRATCHPAD_CHANGED;
+            free(buf);
         }
     }
     return 1;
@@ -162,15 +265,27 @@ static int json_int(void *ctx, long long val) {
 static int json_int(void *ctx, long val) {
     LOG("int %ld for key %s\n", val, last_key);
 #endif
-    if (strcasecmp(last_key, "type") == 0) {
+    if (strcasecmp(last_key, "type") == 0)
         json_node->type = val;
-    }
-    if (strcasecmp(last_key, "fullscreen_mode") == 0) {
+
+    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 (!parsing_swallows && strcasecmp(last_key, "id") == 0)
+        json_node->old_id = val;
+
+    if (parsing_focus) {
+        struct focus_mapping *focus_mapping = scalloc(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)
@@ -211,6 +326,11 @@ static int json_bool(void *ctx, int val) {
         to_focus = json_node;
     }
 
+    if (parsing_swallows) {
+        if (strcasecmp(last_key, "restart_mode") == 0)
+            current_swallow->restart_mode = val;
+    }
+
     return 1;
 }
 
@@ -226,11 +346,22 @@ void tree_append_json(const char *filename) {
     /* TODO: percent of other windows are not correctly fixed at the moment */
     FILE *f;
     if ((f = fopen(filename, "r")) == NULL) {
-        LOG("Cannot open file\n");
+        LOG("Cannot open file \"%s\"\n", filename);
+        return;
+    }
+    struct stat stbuf;
+    if (fstat(fileno(f), &stbuf) != 0) {
+        LOG("Cannot fstat() the file\n");
+        fclose(f);
+        return;
+    }
+    char *buf = smalloc(stbuf.st_size);
+    int n = fread(buf, 1, stbuf.st_size, f);
+    if (n != stbuf.st_size) {
+        LOG("File \"%s\" could not be read entirely, not loading.\n", filename);
+        fclose(f);
         return;
     }
-    char *buf = malloc(65535); /* TODO */
-    int n = fread(buf, 1, 65535, f);
     LOG("read %d bytes\n", n);
     yajl_gen g;
     yajl_handle hand;