Narrow down enum types (#431)

* narrow down enum types

* add enum types

* change from default to case

* add enum types

* remove comments

* remove comments

* fix

* Move getErrorLevelValue to Logger

* Add enum type for LogErrorLevelValue

* add eslint switch-exhaustiveness-check rule

* Revert "add eslint switch-exhaustiveness-check"

This reverts commit 49f9caabf0af900bc5ba2b80f5baff72c27e02cd.

* move from labelled loop to helper functions

* move helper functions downward

4 files changed, 86 insertions, 2 deletions

diff --git a/types/ext/dictionary-importer.d.ts b/types/ext/dictionary-importer.d.ts
index cccfdc42..cda1bd19 100644
--- a/types/ext/dictionary-importer.d.ts
+++ b/types/ext/dictionary-importer.d.ts
@@ -23,9 +23,30 @@ import type * as StructuredContent from './structured-content';
 
 export type OnProgressCallback = (data: ProgressData) => void;
 
+/**
+ * An enum representing the import step.
+ *
+ * `-2` `-1` Dictionary import is uninitialized.
+ *
+ * `0` Load dictionary archive and validate index step.
+ *
+ * `1` Load schemas and get archive files step.
+ *
+ * `2` Load and validate dictionary data step.
+ *
+ * `3` Format dictionary data and extended data support step.
+ *
+ * `4` Resolve async requirements and import media step.
+ *
+ * `5` Add dictionary descriptor and import data step.
+ */
+export type ImportStep = -2 | -1 | 0 | 1 | 2 | 3 | 4 | 5;
+
+export type ImportStepCount = 6;
+
 export type ProgressData = {
-    stepIndex: number;
-    stepCount: number;
+    stepIndex: ImportStep;
+    stepCount: ImportStepCount;
     index: number;
     count: number;
 };
diff --git a/types/ext/dom-text-scanner.d.ts b/types/ext/dom-text-scanner.d.ts
new file mode 100644
index 00000000..e3ae4b53
--- /dev/null
+++ b/types/ext/dom-text-scanner.d.ts
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2023  Yomitan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * An enum representing the attributes of the character.
+ *
+ * `0` Character should be ignored.
+ *
+ * `1` Character is collapsible whitespace.
+ *
+ * `2` Character should be added to the content.
+ *
+ * `3` Character should be added to the content and is a newline.
+ */
+export type CharacterAttributesEnum = 0 | 1 | 2 | 3;
+
+export type SeekTextNoteDetails = {
+    done: boolean;
+    lineHasWhitespace: boolean;
+    lineHasContent: boolean;
+    content: string;
+    offset: number;
+    remainder: number;
+    newlines: number;
+};
diff --git a/types/ext/log.d.ts b/types/ext/log.d.ts
index ac2f606b..904bf848 100644
--- a/types/ext/log.d.ts
+++ b/types/ext/log.d.ts
@@ -22,3 +22,14 @@ export type LoggerEventType = 'log';
 export type LogContext = {
     url: string;
 };
+
+/**
+ * An enum representing the log error level.
+ *
+ * `0` _log_, _info_, _debug_ level.
+ *
+ * `1` _warn_ level.
+ *
+ * `2` _error_ level.
+ */
+export type LogErrorLevelValue = 0 | 1 | 2;
diff --git a/types/ext/text-scanner.d.ts b/types/ext/text-scanner.d.ts
index 5b806dab..d56d623a 100644
--- a/types/ext/text-scanner.d.ts
+++ b/types/ext/text-scanner.d.ts
@@ -185,6 +185,19 @@ export type PointerEventType = (
     'script'
 );
 
+/**
+ * An enum representing the pen pointer state.
+ *
+ * `0` Not active.
+ *
+ * `1` Hovering.
+ *
+ * `2` Touching.
+ *
+ * `3` Hovering after touching.
+ */
+export type PenPointerState = 0 | 1 | 2 | 3;
+
 export type SentenceTerminatorMap = Map<string, [includeCharacterAtStart: boolean, includeCharacterAtEnd: boolean]>;
 
 export type SentenceForwardQuoteMap = Map<string, [character: string, includeCharacterAtStart: boolean]>;