original file name: Codeium Chat - o4XDWKp3sWozN4ZLjtcq80yqctPXnQWa.md summary: This chat involved a user seeking assistance with lifting the currentFontSize state from the XtermAdapter class to the HandexTerm class. The conversation covered steps to achieve this, including creating a state in HandexTerm for font size, passing a callback to update font size, and updating the font size in both components.

Later, the user realized they needed to move the entire font resizing logic to HandexTerm and encountered an error related to preventing default behavior in a passive event listener. The solution involved manually adding event listeners with { passive: false } option to allow calling event.preventDefault().

The chat also discussed passing an event back to HandexTerm from NextCharsDisplay when a phrase is successfully completed. This involved defining a method in HandexTerm to handle phrase success, passing it as a prop to NextCharsDisplay, and triggering the callback from NextCharsDisplay upon phrase completion.

Note: This is purely the output of the chat conversation and does not contain any raw data, codebase snippets, etc. used to generate the output.

User at 12:47 pm, Jun 4, 2024

I need to life the currentFontSize from the XtermAdapter to the HandexTerm that instantiates it.

How can I do that?

Codeium at 12:48 pm, Jun 4, 2024

To lift the currentFontSize state from the XtermAdapter class to the HandexTerm class, you can follow these steps:

1. Create a new state in HandexTerm to hold the font size.
2. Pass a callback from HandexTerm to XtermAdapter that updates this state.
3. Call this callback in XtermAdapter whenever the font size changes.

In HandexTerm, you would add a state and a method to update it:

class HandexTerm extends React.Component {
  // ... existing code ...

  state = {
    // ... existing state ...
    terminalFontSize: 17, // The default size or loaded from somewhere
  };

  // Method to update font size in HandexTerm state
  updateTerminalFontSize = (newSize: number) => {
    this.setState({ terminalFontSize: newSize });
  };

  // ... rest of your component ...
}

Then, pass updateTerminalFontSize to XtermAdapter:

<XtermAdapter
  // ... other props ...
  updateFontSize={this.updateTerminalFontSize}
/>

In XtermAdapter, you would call updateFontSize passed via props:

class XtermAdapter extends React.Component {
  // ... existing code ...

  public handleTouchMove: TouchEventHandler<HTMLDivElement> = (event: React.TouchEvent<HTMLDivElement>) => {
    if (event.touches.length === 2) {
      // ... existing code ...
      if (this.lastTouchDistance) {
        // ... existing code ...
        this.currentFontSize *= scaleFactor;
        // Update font size in XtermAdapter state (if you have local state for it)
        // and lift the state up to HandexTerm
        this.props.updateFontSize(this.currentFontSize);

        // ... existing code ...
      }
    }
  };
  
  // ... rest of your component ...
}

Make sure to adjust the XtermAdapter's props type to include the new updateFontSize callback:

interface IXtermAdapterProps {
  // ... existing prop types ...
  updateFontSize: (newFontSize: number) => void;
}

This way, whenever the font size changes in XtermAdapter, it will inform HandexTerm of the change, and HandexTerm will update its own state accordingly.

User at 2:37 pm, Jun 4, 2024

Actually, I think I might have stated that wrong.

I think I need to move the whole font-resizing code up and into the HandTerm. I moved the Output up there and I had been resizing on pinching that too.

Codeium at 2:38 pm, Jun 4, 2024

To move the entire font resizing logic from XtermAdapter to HandexTerm, you need to:

1. Remove the font resizing logic from XtermAdapter.
2. Implement the font resizing logic in HandexTerm.
3. Use refs or methods to update the font size of the terminal in XtermAdapter from HandexTerm.

Here's how you could implement the changes:

Step 1: Remove the font resizing logic from XtermAdapter, including methods like loadFontSize, increaseFontSize, and any event handlers related to touch events that change the font size.

Step 2: In HandexTerm, you can add touch event handlers that implement the resizing logic. Since you want to resize the font on pinch gestures, you will handle touch events similar to handleTouchMove in XtermAdapter.

class HandexTerm extends React.Component {
  // ... existing code ...

  handleTouchStart: TouchEventHandler<HTMLDivElement> = (event: React.TouchEvent<HTMLDivElement>) => {
    // Your touch start logic
  };

  handleTouchMove: TouchEventHandler<HTMLDivElement> = (event: React.TouchEvent<HTMLDivElement>) => {
    if (event.touches.length === 2) {
      // Your touch move logic for resizing the font
      const currentDistance = this.getDistanceBetweenTouches(event.touches);
      // Calculate the font size change based on the distance moved
      // Update the state with the new font size
      this.setState({ terminalFontSize: newFontSize });
    }
  };

  handleTouchEnd: TouchEventHandler<HTMLDivElement> = (event: React.TouchEvent<HTMLDivElement>) => {
    // Your touch end logic
  };

  getDistanceBetweenTouches(touches: React.TouchList): number {
    // Implement the logic to calculate the distance between two touches
  }

  // ... rest of your component ...
}

Step 3: Whenever the terminalFontSize state changes in HandexTerm, use a method in XtermAdapter to update the font size of the terminal. You could call this method in the componentDidUpdate lifecycle method of the HandexTerm class after checking that the font size has changed.

componentDidUpdate(prevProps: Readonly<IHandexTermProps>, prevState: IHandexTermState) {
  // Check if terminalFontSize has changed
  if (prevState.terminalFontSize !== this.state.terminalFontSize) {
    this.adapterRef.current?.updateFontSize(this.state.terminalFontSize);
  }
}

And in XtermAdapter, you would have:

class XtermAdapter extends React.Component {
  // ... existing code ...

  public updateFontSize(fontSize: number): void {
    // Update the terminal's font size
    this.terminal.options.fontSize = fontSize;
    this.terminal.refresh(0, this.terminal.rows - 1);
    // Any other logic needed to apply the new font size
  }

  // ... rest of your component ...
}

Remember to remove or comment out any code related to font resizing from XtermAdapter that is no longer necessary and ensure that the XtermAdapterProps interface reflects any changes you've made to the props.

User at 5:39 pm, Jun 4, 2024

I sort of have everything moved upt to HandexTerm, but I get this error:

HandexTerm.tsx:446  
Unable to preventDefault inside passive event listener invocation.
[email protected]:446Show 16 more frames

 public handleTouchMove: TouchEventHandler<HTMLDivElement> = (event: React.TouchEvent<HTMLDivElement>) => {
  if (event.touches.length === 2) {
   event.preventDefault();
   const currentDistance = this.getDistanceBetweenTouches(event.touches);
   if (this.lastTouchDistance) {
    const scaleFactor = currentDistance / this.lastTouchDistance;
    this.currentFontSize *= scaleFactor;
    // TODO: Figure out how to resize fonts now with REact.
    document.documentElement.style.setProperty('--terminal-font-size', `${this.currentFontSize}pt`);
    this.lastTouchDistance = currentDistance;
    // this.terminal.options.fontSize = this.currentFontSize;
    // this.terminal.refresh(0, this.terminal.rows - 1); // Refresh the terminal display
   }
  }
 }

I am trying to prevent the browser zooming while I'm trying to resize the font.

Codeium at 5:39 pm, Jun 4, 2024

The error message you're seeing is due to the browser's intervention when trying to call event.preventDefault() inside a passive event listener. In many browsers, the touch event listeners are passive by default to improve scrolling performance. When an event listener is passive, you cannot prevent the default action using event.preventDefault().

To fix this, you need to explicitly indicate that the event listener is not passive when you add it, which allows you to call event.preventDefault(). However, since you are using React's onTouchMove prop to assign the event listener, you don't have direct control over how the event listener is added to the element.

To work around this, you can add the event listener manually in the componentDidMount lifecycle method and remove it in the componentWillUnmount method, like so:

class HandexTerm extends React.Component {
  // ... existing code ...

  componentDidMount() {
    this.addTouchListeners();
  }

  componentWillUnmount() {
    this.removeTouchListeners();
  }

  addTouchListeners() {
    // Assuming 'terminalElementRef' points to the div you want to attach the event
    const div = this.terminalElementRef.current;
    if (div) {
      div.addEventListener('touchmove', this.handleTouchMove, { passive: false });
    }
  }

  removeTouchListeners() {
    const div = this.terminalElementRef.current;
    if (div) {
      div.removeEventListener('touchmove', this.handleTouchMove);
    }
  }

  handleTouchMove = (event: TouchEvent) => {
    if (event.touches.length === 2) {
      event.preventDefault();
      const currentDistance = this.getDistanceBetweenTouches(event.touches);
      // ... your existing logic ...
    }
  };

  // ... rest of your component ...
}

With this approach, you're manually adding the event listener with the { passive: false } option, which indicates that you want the ability to call event.preventDefault(). Remember to adjust the handleTouchMove method to match the correct event type (TouchEvent instead of React.TouchEvent), as we're now directly working with the DOM API.

Note: Be aware that setting { passive: false } can have performance implications, particularly on mobile devices, as it may delay touch scrolling. Use this approach judiciously.

User at 6:35 pm, Jun 4, 2024

The NextCharsDisplay has a onPhraseSuccess() property passed in to it.

I think in React, that is a way to pass an event back up to the HandexTerm, but I don't think I have it implemented properly.

I need to report the completion of the phrase to the HandexTerm so that it can handle a behaviour in the TerminalGame

Codeium at 6:35 pm, Jun 4, 2024

From the provided context, NextCharsDisplay indeed has a onPhraseSuccess prop which is intended to be a callback function. This callback is designed to notify the parent component (HandexTerm) when a phrase is successfully completed.

To ensure that onPhraseSuccess is working properly, you should:

1. Define the onPhraseSuccess method in HandexTerm.
2. Pass this method as a prop to NextCharsDisplay.

Here's an example of how you might implement this in HandexTerm:

class HandexTerm extends React.Component {
  // ... existing code ...

  handlePhraseSuccess = (phrase: string, wpm: number) => {
    // Perform the actions you want on phrase success, e.g., update the state
    // or call methods on TerminalGame
    console.log('Phrase completed:', phrase, 'with WPM:', wpm);
    // You mentioned setting an action in TerminalGame, e.g.,
    this.terminalGameRef.current?.setZombie4Action('Die');
    // ... any other logic for handling phrase success ...
  };

  // ... rest of your component ...

  render() {
    return (
      // ... other components ...
      <NextCharsDisplay
        // ... other props ...
        onPhraseSuccess={this.handlePhraseSuccess}
      />
      // ... other components ...
    );
  }
}

And in NextCharsDisplay, when the phrase is completed successfully, you would call the onPhraseSuccess prop:

class NextCharsDisplay extends React.Component {
  // ... existing code ...

  // This is an example method that gets called when a phrase is completed.
  someMethodThatCompletesPhrase() {
    // Let's say the phrase completion logic determines the phrase and WPM
    const phrase = 'completed phrase';
    const wpm = 120;

    // Now call the onPhraseSuccess callback, which was passed from HandexTerm
    this.props.onPhraseSuccess(phrase, wpm);
  }

  // ... rest of your component ...
}

Make sure that onPhraseSuccess is correctly typed in the props interface for NextCharsDisplay:

interface NextCharsDisplayProps {
  // ... other props ...
  onPhraseSuccess: (phrase: string, wpm: number) => void;
}

By following this pattern, the NextCharsDisplay component communicates the success event back to the HandexTerm, which can then handle any additional logic required, such as updating the state or invoking behaviors in other components like TerminalGame.