2 files changed, 17 insertions, 59 deletions
diff --git a/src/shared/settings/Key.ts b/src/shared/settings/Key.ts
index b11eeb2..3a3eb3b 100644
--- a/src/shared/settings/Key.ts
+++ b/src/shared/settings/Key.ts
@@ -1,3 +1,5 @@
+const digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
+
 export default class Key {
   public readonly key: string;
 
@@ -9,12 +11,18 @@ export default class Key {
 
   public readonly meta: boolean;
 
-  constructor({ key, shift, ctrl, alt, meta }: {
+  constructor({
+    key,
+    shift = false,
+    ctrl = false,
+    alt = false,
+    meta = false,
+  }: {
     key: string;
-    shift: boolean;
-    ctrl: boolean;
-    alt: boolean;
-    meta: boolean;
+    shift?: boolean;
+    ctrl?: boolean;
+    alt?: boolean;
+    meta?: boolean;
   }) {
     this.key = key;
     this.shift = shift;
@@ -51,6 +59,10 @@ export default class Key {
     });
   }
 
+  isDigit(): boolean {
+    return digits.includes(this.key);
+  }
+
   equals(key: Key) {
     return this.key === key.key &&
       this.ctrl === key.ctrl &&
diff --git a/src/shared/settings/KeySequence.ts b/src/shared/settings/KeySequence.ts
deleted file mode 100644
index abae61a..0000000
--- a/src/shared/settings/KeySequence.ts
+++ /dev/null
@@ -1,54 +0,0 @@
-import Key from './Key';
-
-export default class KeySequence {
-  constructor(
-    public readonly keys: Key[],
-  ) {
-  }
-
-  push(key: Key): number {
-    return this.keys.push(key);
-  }
-
-  length(): number {
-    return this.keys.length;
-  }
-
-  startsWith(o: KeySequence): boolean {
-    if (this.keys.length < o.keys.length) {
-      return false;
-    }
-    for (let i = 0; i < o.keys.length; ++i) {
-      if (!this.keys[i].equals(o.keys[i])) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  static fromMapKeys(keys: string): KeySequence {
-    const fromMapKeysRecursive = (
-      remaining: string, mappedKeys: Key[],
-    ): Key[] => {
-      if (remaining.length === 0) {
-        return mappedKeys;
-      }
-
-      let nextPos = 1;
-      if (remaining.startsWith('<')) {
-        let ltPos = remaining.indexOf('>');
-        if (ltPos > 0) {
-          nextPos = ltPos + 1;
-        }
-      }
-
-      return fromMapKeysRecursive(
-        remaining.slice(nextPos),
-        mappedKeys.concat([Key.fromMapKey(remaining.slice(0, nextPos))])
-      );
-    };
-
-    let data = fromMapKeysRecursive(keys, []);
-    return new KeySequence(data);
-  }
-}