diff --git a/include/mode-private.h b/include/mode-private.h
index 6ccdee37..63839c80 100644
--- a/include/mode-private.h
+++ b/include/mode-private.h
@@ -34,13 +34,17 @@ G_BEGIN_DECLS
 /** ABI version to check if loaded plugin is compatible. */
 #define ABI_VERSION 7u
 
+/**
+ * Indicator what type of mode this is.
+ * For now it can be the classic switcher, or also implement a completer.
+ */
 typedef enum {
-	/** Mode type is not set */
-	MODE_TYPE_UNSET     = 0b0000,
-	/** A normal mode. */
-	MODE_TYPE_SWITCHER  = 0b0001,
-	/** A mode that can be used to completer */
-	MODE_TYPE_COMPLETER = 0b0010,
+  /** Mode type is not set */
+  MODE_TYPE_UNSET = 0b0000,
+  /** A normal mode. */
+  MODE_TYPE_SWITCHER = 0b0001,
+  /** A mode that can be used to completer */
+  MODE_TYPE_COMPLETER = 0b0010,
 } ModeType;
 
 /**
@@ -160,28 +164,29 @@ typedef char *(*_mode_preprocess_input)(Mode *sw, const char *input);
  */
 typedef char *(*_mode_get_message)(const Mode *sw);
 
-
 /**
  * Create a new instance of this mode.
  * Free (free) result after use, after using mode_destroy.
  *
  * @returns Instantiate a new instance of this mode.
  */
-typedef Mode *(*_mode_create)( void );
+typedef Mode *(*_mode_create)(void);
 
 /**
  * @param sw The #Mode pointer
  * @param menu_retv The return value
  * @param input The input string
  * @param selected_line The selected line
- * @param the path that was completed
+ * @param path the path that was completed
  *
  * Handle the user accepting an entry in completion mode.
  *
  * @returns the next action to take
  */
-typedef ModeMode (*_mode_completer_result)(Mode *sw, int menu_retv, char **input,
-                                 unsigned int selected_line, char **path);
+typedef ModeMode (*_mode_completer_result)(Mode *sw, int menu_retv,
+                                           char **input,
+                                           unsigned int selected_line,
+                                           char **path);
 /**
  * Structure defining a switcher.
  * It consists of a name, callback and if enabled
diff --git a/include/mode.h b/include/mode.h
index 0a7b839c..55ef750d 100644
--- a/include/mode.h
+++ b/include/mode.h
@@ -256,7 +256,7 @@ char *mode_get_message(const Mode *mode);
 Mode *mode_create(const Mode *mode);
 
 /**
- * @param mode The mode to query
+ * @param sw The mode to query
  * @param menu_retv The menu return value.
  * @param input Pointer to the user input string. [in][out]
  * @param selected_line the line selected by the user.
@@ -270,7 +270,7 @@ ModeMode mode_completer_result(Mode *sw, int menu_retv, char **input,
                                unsigned int selected_line, char **path);
 
 /**
- * @param mode The mode to query.
+ * @param sw The mode to query.
  *
  * Check if mode is a valid completer.
  *
diff --git a/include/rofi.h b/include/rofi.h
index 38f4c44a..dced47c1 100644
--- a/include/rofi.h
+++ b/include/rofi.h
@@ -104,6 +104,12 @@ void rofi_quit_main_loop(void);
  */
 Mode *rofi_collect_modes_search(const char *name);
 
+/**
+ * Query the configure file completer.
+ *
+ * @returns the Mode that can be used for file completion or NULL when not
+ * found.
+ */
 const Mode *rofi_get_completer(void);
 /** Reset terminal */
 #define color_reset "\033[0m"
diff --git a/include/view.h b/include/view.h
index 31373340..783d6f4a 100644
--- a/include/view.h
+++ b/include/view.h
@@ -356,6 +356,17 @@ void rofi_view_ellipsize_listview(RofiViewState *state,
  */
 gboolean rofi_set_im_window_pos(int new_x, int new_y);
 
+/**
+ * @param wid to test.
+ * @param action the action done.
+ * @param x [unused]
+ * @param y [unsued]
+ * @param user_data
+ *
+ * textbux widget trigger action function.
+ *
+ * @return the result.
+ */
 WidgetTriggerActionResult textbox_button_trigger_action(
     widget *wid, MouseBindingMouseDefaultAction action, G_GNUC_UNUSED gint x,
     G_GNUC_UNUSED gint y, G_GNUC_UNUSED void *user_data);
diff --git a/source/modes/filebrowser.c b/source/modes/filebrowser.c
index b32d83f0..47df4588 100644
--- a/source/modes/filebrowser.c
+++ b/source/modes/filebrowser.c
@@ -50,6 +50,7 @@
 #include "rofi-icon-fetcher.h"
 
 #define FILEBROWSER_CACHE_FILE "rofi3.filebrowsercache"
+/** The default program used to open the file. */
 #define DEFAULT_OPEN "xdg-open"
 
 #if defined(__APPLE__)
@@ -712,24 +713,22 @@ ModeMode file_browser_mode_completer(Mode *sw, int mretv, char **input,
 }
 #endif
 
-Mode file_browser_mode = {
-    .display_name = NULL,
-    .abi_version = ABI_VERSION,
-    .name = "filebrowser",
-    .cfg_name_key = "display-filebrowser",
-    ._init = file_browser_mode_init,
-    ._get_num_entries = file_browser_mode_get_num_entries,
-    ._result = file_browser_mode_result,
-    ._destroy = file_browser_mode_destroy,
-    ._token_match = file_browser_token_match,
-    ._get_display_value = _get_display_value,
-    ._get_icon = _get_icon,
-    ._get_message = _get_message,
-    ._get_completion = _get_completion,
-    ._preprocess_input = NULL,
-    ._create = create_new_file_browser,
-    ._completer_result = file_browser_mode_completer,
-    .private_data = NULL,
-    .free = NULL,
-    .type = MODE_TYPE_SWITCHER|MODE_TYPE_COMPLETER
-};
+Mode file_browser_mode = {.display_name = NULL,
+                          .abi_version = ABI_VERSION,
+                          .name = "filebrowser",
+                          .cfg_name_key = "display-filebrowser",
+                          ._init = file_browser_mode_init,
+                          ._get_num_entries = file_browser_mode_get_num_entries,
+                          ._result = file_browser_mode_result,
+                          ._destroy = file_browser_mode_destroy,
+                          ._token_match = file_browser_token_match,
+                          ._get_display_value = _get_display_value,
+                          ._get_icon = _get_icon,
+                          ._get_message = _get_message,
+                          ._get_completion = _get_completion,
+                          ._preprocess_input = NULL,
+                          ._create = create_new_file_browser,
+                          ._completer_result = file_browser_mode_completer,
+                          .private_data = NULL,
+                          .free = NULL,
+                          .type = MODE_TYPE_SWITCHER | MODE_TYPE_COMPLETER};
diff --git a/source/modes/recursivebrowser.c b/source/modes/recursivebrowser.c
index 6c7a5b4f..3e010b41 100644
--- a/source/modes/recursivebrowser.c
+++ b/source/modes/recursivebrowser.c
@@ -52,6 +52,7 @@
 
 #include "rofi-icon-fetcher.h"
 
+/** The default program used to open the file. */
 #define DEFAULT_OPEN "xdg-open"
 
 /**
diff --git a/source/view.c b/source/view.c
index e685f101..143b5af9 100644
--- a/source/view.c
+++ b/source/view.c
@@ -155,8 +155,11 @@ struct {
   X11CursorType cursor_type;
   /** Entry box */
   gboolean entry_history_enable;
+  /** Array with history entriy input. */
   EntryHistoryIndex *entry_history;
+  /** Length of the array */
   gssize entry_history_length;
+  /** The current index being viewed. */
   gssize entry_history_index;
 } CacheState = {.main_window = XCB_WINDOW_NONE,
                 .fake_bg = NULL,