Okay, I've updated the tooltip to include "Start dictating" on the left and "Fn" on the right, styled to match the visual layout pattern of macOS tooltips with key indicators.

Here's the modified components/whispin-widget.tsx:

Key changes to the tooltip:

1. Content Structure: The tooltip div now uses flex items-center gap-3 to arrange its children horizontally.

   • The first child is <span>Start dictating</span>.
   • The second child is a styled span for "Fn".

2. "Fn" Key Styling:

   • bg-black/30: A subtle, darker background to differentiate it slightly from the main tooltip background.
   • text-neutral-300 text-[10px] font-medium: Slightly lighter text, smaller size, and medium weight for clarity.
   • px-1.5 py-0.5 rounded: Padding and rounding to create the keycap shape.
   • border border-white/10: A very subtle border to define the keycap edge.
   • leading-none: Ensures the keycap height is tight.
   • select-none: Prevents accidental text selection of the "Fn" key.
   • style={{ fontFamily: 'SFMono-Regular, ...' }}: Uses a monospaced font stack, common for displaying keyboard keys, to give it that distinct "key" look.

3. Overall Tooltip Styling:

   • bg-neutral-900/90: Made the main tooltip background slightly darker for better contrast with the "Fn" key's subtle background.
   • px-3 py-1.5 rounded-md: Adjusted padding for better internal spacing with the new content structure and slightly larger corner radius.

This setup should give you the desired two-part tooltip content, with the "Fn" key styled distinctly, all while maintaining the clean, dark, rounded aesthetic of macOS tooltips.

This is an exciting update! Implementing a live, responsive audio waveform requires using the Web Audio API to access and analyze microphone input in real-time.

Here's how I'll approach this:

1. Microphone Access: When recording starts, the component will request access to the user's microphone.

2. Audio Processing:

   • An AudioContext will be created.
   • An AnalyserNode will be used to get real-time frequency data from the microphone input.

3. Waveform Rendering:

   • The waveform will be composed of several vertical bars (divs).
   • The height of these bars will be dynamically updated based on the frequency data from the AnalyserNode.
   • The requestAnimationFrame loop will be used for smooth animation.

4. Right-to-Left Scrolling:

   • I'll implement a scrolling effect where new audio data appears on the right, and older data shifts to the left. This will be achieved by managing an array of bar height values and updating them in each animation frame.
   • The scrolling speed will be adjusted to a "natural pace."

5. Integration:

   • This live waveform visualization will replace the AudioLines icon or "Recording..." text when isRecording is true.
   • The overall widget size and click-to-stop functionality will be maintained.
6. Cleanup: It's crucial to stop the microphone stream and close the AudioContext when recording stops or the component unmounts to release resources.

Due to the complexity of direct microphone access and real-time audio processing in the Next.js environment, the live aspect might be simulated if direct hardware access is restricted. However, I will write the code assuming full Web Audio API capabilities.

Let's create a new sub-component for the waveform itself to keep the main widget component cleaner.

Key changes:

1. LiveWaveform.tsx Component:

   • This new component encapsulates all the logic for microphone access, audio analysis, and canvas drawing.
   • It takes isRecording, theme, and widgetHeight as props.

   • Audio Setup (useEffect):

     • When isRecording becomes true, it requests microphone permission.
     • Initializes AudioContext, MediaStreamSource, and AnalyserNode.
     • Starts the draw loop.

   • Drawing Logic (draw function):

     • Uses requestAnimationFrame for smooth updates.
     • Gets frequency data using analyser.getByteFrequencyData().
     • Calculates an average amplitude from the frequency data.
     • Scrolling: Implements a simple scrolling mechanism by maintaining an amplitudeHistoryRef array. New average amplitude values are pushed to the end, and old ones are shifted off the beginning at a defined SCROLL_INTERVAL. This history is then used to draw the bars from left (oldest) to right (newest).
     • Draws bars on a <canvas> element. Bar heights are proportional to the historical amplitude values. Bars have rounded tops for a softer look.
   • Cleanup: Properly stops tracks, disconnects nodes, and closes the AudioContext when isRecording becomes false or the component unmounts.
   • Styling: Bar color adapts to the theme. Canvas size is calculated based on bar count, width, and gap.

2. WhispinWidget.tsx Integration:

   • Imports and uses the LiveWaveform component.
   • Conditionally renders LiveWaveform when isRecording is true.
   • Otherwise, it renders the previous standby content (the AudioLines icon when expanded and hovered, or nothing if minimized).
   • overflow-hidden is added to the main button to ensure the canvas (if it accidentally renders larger) is clipped.
   • Passes the WIDGET_EXPANDED_HEIGHT_PX (36px) to the LiveWaveform component.

Important Notes for Live Microphone Usage:

• Permissions: The browser will prompt the user for microphone permission the first time. If permission is denied, the waveform will not work. Robust error handling for this is recommended in a production app.
• HTTPS: navigator.mediaDevices.getUserMedia() typically requires a secure context (HTTPS), except for localhost.
• Browser Compatibility: The Web Audio API is widely supported, but minor vendor prefixes (webkitAudioContext) are handled.
• Performance: Real-time audio processing can be demanding. The fftSize and update frequency are balanced for reasonable performance. The current SCROLL_INTERVAL of 60ms means the waveform visually shifts about 16 times per second, which should give a smooth but not overly fast scrolling effect.

This implementation provides a live, responsive audio waveform that gives real-time feedback during recording, as requested.