Adds keyboard shortcuts for calling

ts/hooks/useKeyboardShortcuts.tsx

@@ -15,6 +15,106 @@ function isCmdOrCtrl(ev: KeyboardEvent): boolean {
   return commandKey || controlKey;
 }
 
+function isCtrlOrAlt(ev: KeyboardEvent): boolean {
+  const { altKey, ctrlKey } = ev;
+  const controlKey = get(window, 'platform') === 'darwin' && ctrlKey;
+  const theAltKey = get(window, 'platform') !== 'darwin' && altKey;
+  return controlKey || theAltKey;
+}
+
+export function useActiveCallShortcuts(
+  hangUp: () => unknown
+): KeyboardShortcutHandlerType {
+  return useCallback(
+    ev => {
+      const { shiftKey } = ev;
+      const key = KeyboardLayout.lookup(ev);
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'e' || key === 'E')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        hangUp();
+        return true;
+      }
+
+      return false;
+    },
+    [hangUp]
+  );
+}
+
+export function useIncomingCallShortcuts(
+  acceptAudioCall: () => unknown,
+  acceptVideoCall: () => unknown,
+  declineCall: () => unknown
+): KeyboardShortcutHandlerType {
+  return useCallback(
+    ev => {
+      const { shiftKey } = ev;
+      const key = KeyboardLayout.lookup(ev);
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'v' || key === 'V')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        acceptVideoCall();
+        return true;
+      }
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'a' || key === 'A')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        acceptAudioCall();
+        return true;
+      }
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'd' || key === 'D')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        declineCall();
+        return true;
+      }
+
+      return false;
+    },
+    [acceptAudioCall, acceptVideoCall, declineCall]
+  );
+}
+
+export function useStartCallShortcuts(
+  startAudioCall: () => unknown,
+  startVideoCall: () => unknown
+): KeyboardShortcutHandlerType {
+  return useCallback(
+    ev => {
+      const { shiftKey } = ev;
+      const key = KeyboardLayout.lookup(ev);
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'c' || key === 'C')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        startAudioCall();
+        return true;
+      }
+
+      if (isCtrlOrAlt(ev) && shiftKey && (key === 'y' || key === 'Y')) {
+        ev.preventDefault();
+        ev.stopPropagation();
+
+        startVideoCall();
+        return true;
+      }
+
+      return false;
+    },
+    [startAudioCall, startVideoCall]
+  );
+}
+
 export function useStartRecordingShortcut(
   startAudioRecording: () => unknown
 ): KeyboardShortcutHandlerType {