fix(teleprompter): keep the transport row fixed and label every control

The follow control was rendered only while the follow could be re-engaged,
so it appeared and vanished mid show and moved every control after it. An
operator reaching for pause would press whatever had slid under their
finger. It is now always present and goes disabled when there is nothing to
re-engage, which is how the rest of the row already behaved.

The controls also could not explain themselves: the follow target in
particular is not a guessable icon. Each one now carries a tooltip naming
the action and its key, using the shared Tooltip the editor uses.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Cb8RVPNQ2ETPJxdy4b8CHf

apps/client/src/views/teleprompter/Teleprompter.tsx

@@ -161,7 +161,7 @@ function Teleprompter({ rundown, rundownMetadata, customFields }: TeleprompterDa
           <ControlOverlay
             isRunning={isRunning}
             speed={speed}
-            followLocked={followLocked && options.followLoaded}
+            canReengageFollow={followLocked && options.followLoaded}
             atEnd={atEnd}
             controller={controller}
             onToggleHelp={handleToggleHelp}

apps/client/src/views/teleprompter/control-overlay/ControlOverlay.tsx

@@ -2,6 +2,7 @@ import type { MouseEvent } from 'react';
 import { IoAdd, IoArrowUp, IoHelpCircleOutline, IoLocate, IoPause, IoPlay, IoRemove } from 'react-icons/io5';
 
 import IconButton from '../../../common/components/buttons/IconButton';
+import Tooltip from '../../../common/components/tooltip/Tooltip';
 import { useFadeOutOnInactivity } from '../../../common/hooks/useFadeOutOnInactivity';
 import { cx } from '../../../common/utils/styleUtils';
 import { SPEED_STEP } from '../teleprompter.scroll';
@@ -10,7 +11,8 @@ import type { TeleprompterController } from '../teleprompter.types';
 interface ControlOverlayProps {
   isRunning: boolean;
   speed: number;
-  followLocked: boolean;
+  /** whether the follow can be re-engaged: it is off while already following */
+  canReengageFollow: boolean;
   atEnd: boolean;
   controller: TeleprompterController;
   onToggleHelp: () => void;
@@ -23,11 +25,16 @@ interface ControlOverlayProps {
  * Visibility follows the same rule as the rest of Ontime's floating chrome: it
  * fades once the operator stops moving, so it leaves the talent's eyeline
  * without needing to know whether the script happens to be rolling.
+ *
+ * Every control is present for the life of the view and goes disabled when it
+ * has nothing to do. A control which comes and goes moves every control after
+ * it, so the operator reaches for pause during a show and presses whatever slid
+ * under their finger instead.
  */
 export default function ControlOverlay({
   isRunning,
   speed,
-  followLocked,
+  canReengageFollow,
   atEnd,
   controller,
   onToggleHelp,
@@ -50,47 +57,67 @@ export default function ControlOverlay({
 
   return (
     <div className={cx(['teleprompter__controls', !isActive && 'teleprompter__controls--idle'])}>
-      <IconButton
-        variant='subtle-white'
-        size='large'
-        onClick={press(controller.togglePlay)}
-        data-testid='teleprompter-play'
-        aria-label={isRunning ? 'Pause' : 'Play'}
+      <Tooltip
+        text={isRunning ? 'Pause (Space)' : 'Play (Space)'}
+        render={
+          <IconButton
+            variant='subtle-white'
+            size='large'
+            onClick={press(controller.togglePlay)}
+            data-testid='teleprompter-play'
+            aria-label={isRunning ? 'Pause' : 'Play'}
+          />
+        }
       >
         {isRunning ? <IoPause /> : <IoPlay />}
-      </IconButton>
+      </Tooltip>
 
-      <IconButton
-        variant='subtle-white'
-        size='large'
-        onClick={press(() => controller.changeSpeed(-SPEED_STEP))}
-        aria-label='Slow down'
+      <Tooltip
+        text='Slow down (Left arrow)'
+        render={
+          <IconButton
+            variant='subtle-white'
+            size='large'
+            onClick={press(() => controller.changeSpeed(-SPEED_STEP))}
+            aria-label='Slow down'
+          />
+        }
       >
         <IoRemove />
-      </IconButton>
+      </Tooltip>
 
       <div className='teleprompter__speed' data-testid='teleprompter-speed'>
         {speed}
         <span className='teleprompter__speed-unit'>lpm</span>
       </div>
 
-      <IconButton
-        variant='subtle-white'
-        size='large'
-        onClick={press(() => controller.changeSpeed(SPEED_STEP))}
-        aria-label='Speed up'
+      <Tooltip
+        text='Speed up (Right arrow)'
+        render={
+          <IconButton
+            variant='subtle-white'
+            size='large'
+            onClick={press(() => controller.changeSpeed(SPEED_STEP))}
+            aria-label='Speed up'
+          />
+        }
       >
         <IoAdd />
-      </IconButton>
+      </Tooltip>
 
-      <IconButton
-        variant={atEnd ? 'primary' : 'subtle-white'}
-        size='large'
-        onClick={press(() => controller.rewind())}
-        aria-label='Rewind to top'
+      <Tooltip
+        text='Rewind to the top (Home)'
+        render={
+          <IconButton
+            variant={atEnd ? 'primary' : 'subtle-white'}
+            size='large'
+            onClick={press(() => controller.rewind())}
+            aria-label='Rewind to top'
+          />
+        }
       >
         <IoArrowUp />
-      </IconButton>
+      </Tooltip>
 
       {/*
         The operator view solves this with its own FollowButton, a labelled pill
@@ -98,21 +125,37 @@ export default function ControlOverlay({
         two would land on top of each other. Same icon and same job, folded into
         the transport rather than floating separately.
       */}
-      {followLocked && (
-        <IconButton
-          variant='primary'
-          size='large'
-          onClick={press(controller.reengageFollow)}
-          data-testid='teleprompter-follow'
-          aria-label='Follow the loaded event'
-        >
-          <IoLocate />
-        </IconButton>
-      )}
+      <Tooltip
+        text={
+          canReengageFollow ? 'Jump back to the loaded event and follow it again (L)' : 'Following the loaded event'
+        }
+        render={
+          <IconButton
+            variant={canReengageFollow ? 'primary' : 'subtle-white'}
+            size='large'
+            disabled={!canReengageFollow}
+            onClick={press(controller.reengageFollow)}
+            data-testid='teleprompter-follow'
+            aria-label='Follow the loaded event'
+          />
+        }
+      >
+        <IoLocate />
+      </Tooltip>
 
-      <IconButton variant='subtle-white' size='large' onClick={press(onToggleHelp)} aria-label='Keyboard shortcuts'>
+      <Tooltip
+        text='Keyboard shortcuts (?)'
+        render={
+          <IconButton
+            variant='subtle-white'
+            size='large'
+            onClick={press(onToggleHelp)}
+            aria-label='Keyboard shortcuts'
+          />
+        }
+      >
         <IoHelpCircleOutline />
-      </IconButton>
+      </Tooltip>
     </div>
   );
 }