Define Key and KeySequence

src/shared/utils/keys.ts

@@ -1,99 +0,0 @@
-export interface Key {
-    key: string;
-    shiftKey: boolean | undefined;
-    ctrlKey: boolean | undefined;
-    altKey: boolean | undefined;
-    metaKey: boolean | undefined;
-}
-
-const modifiedKeyName = (name: string): string => {
-  if (name === ' ') {
-    return 'Space';
-  }
-  if (name.length === 1) {
-    return name;
-  } else if (name === 'Escape') {
-    return 'Esc';
-  }
-  return name;
-};
-
-const fromKeyboardEvent = (e: KeyboardEvent): Key => {
-  let key = modifiedKeyName(e.key);
-  let shift = e.shiftKey;
-  if (key.length === 1 && key.toUpperCase() === key.toLowerCase()) {
-    // make shift false for symbols to enable key bindings by symbold keys.
-    // But this limits key bindings by symbol keys with Shift (such as Shift+$>.
-    shift = false;
-  }
-
-  return {
-    key: modifiedKeyName(e.key),
-    shiftKey: shift,
-    ctrlKey: e.ctrlKey,
-    altKey: e.altKey,
-    metaKey: e.metaKey,
-  };
-};
-
-const fromMapKey = (key: string): Key => {
-  if (key.startsWith('<') && key.endsWith('>')) {
-    let inner = key.slice(1, -1);
-    let shift = inner.includes('S-');
-    let base = inner.slice(inner.lastIndexOf('-') + 1);
-    if (shift && base.length === 1) {
-      base = base.toUpperCase();
-    } else if (!shift && base.length === 1) {
-      base = base.toLowerCase();
-    }
-    return {
-      key: base,
-      shiftKey: inner.includes('S-'),
-      ctrlKey: inner.includes('C-'),
-      altKey: inner.includes('A-'),
-      metaKey: inner.includes('M-'),
-    };
-  }
-  return {
-    key: key,
-    shiftKey: key.toLowerCase() !== key,
-    ctrlKey: false,
-    altKey: false,
-    metaKey: false,
-  };
-};
-
-const fromMapKeys = (keys: string): Key[] => {
-  const fromMapKeysRecursive = (
-    remainings: string, mappedKeys: Key[],
-  ): Key[] => {
-    if (remainings.length === 0) {
-      return mappedKeys;
-    }
-
-    let nextPos = 1;
-    if (remainings.startsWith('<')) {
-      let ltPos = remainings.indexOf('>');
-      if (ltPos > 0) {
-        nextPos = ltPos + 1;
-      }
-    }
-
-    return fromMapKeysRecursive(
-      remainings.slice(nextPos),
-      mappedKeys.concat([fromMapKey(remainings.slice(0, nextPos))])
-    );
-  };
-
-  return fromMapKeysRecursive(keys, []);
-};
-
-const equals = (e1: Key, e2: Key): boolean => {
-  return e1.key === e2.key &&
-    e1.ctrlKey === e2.ctrlKey &&
-    e1.metaKey === e2.metaKey &&
-    e1.altKey === e2.altKey &&
-    e1.shiftKey === e2.shiftKey;
-};
-
-export { fromKeyboardEvent, fromMapKey, fromMapKeys, equals };