2024 06 03 assisted user with accessing element size for terminalgame component - bizkite-co/handterm GitHub Wiki
original file name: Codeium Chat - 8ZccNH4dzKOTPOdbcrfmhmxKErLFPni9.md
summary: The user encountered an issue where they were unable to retrieve the size of the containing element from the XtermAdapter in order to pass it to the TerminalGame component. I helped them by suggesting a method to get the dimensions from the XtermAdapter, ensuring the component is fully mounted before accessing the size information, and correctly extracting and applying the width and height properties to the canvasWidth and canvasHeight props. The user implemented the suggestions and successfully resolved the issue.
date: 2024-06-03T13:14
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 1:14 pm, Jun 3, 2024
In my XtermAdapter I call the xterm/fit-addon fit() function, which says it resized the xterm element to the size of the containing element, but it doesn't return any value.
How can I query the size of the containing element from the HandexTerm so that I can pass the width down to the TerminalGame?
<TerminalGame
ref={this.terminalGameRef}
canvasHeight={this.canvasHeight}
canvasWidth="800"
isInPhraseMode={this.state.isInPhraseMode}
heroAction={this.state.heroAction}
zombie4Action={this.state.zombie4Action}
/>Codeium at 1:14 pm, Jun 3, 2024
To query the size of the containing element from HandexTerm, you can use a ref to the container element in the XtermAdapter and then access its clientWidth and clientHeight properties. Since XtermAdapter has a terminalElementRef, you can utilize that to get the dimensions.
Here's a quick example of how you could get the width and height of the terminalElement from XtermAdapter:
// Inside XtermAdapter class
public getTerminalSize(): { width: number; height: number } | undefined {
if (this.terminalElementRef.current) {
return {
width: this.terminalElementRef.current.clientWidth,
height: this.terminalElementRef.current.clientHeight,
};
}
return undefined;
}Then, in HandexTerm, you can call this method and pass the dimensions to TerminalGame:
public render() {
// Assuming you have a method to get the size in XtermAdapter
const terminalSize = this.adapterRef.current?.getTerminalSize();
return (
<>
<Output
elements={this.state.outputElements}
onTouchStart={this.handleTouchStart}
onTouchEnd={this.handleTouchEnd}
onTouchMove={this.handleTouchMove}
/>
<TerminalGame
ref={this.terminalGameRef}
canvasHeight={this.canvasHeight}
canvasWidth={terminalSize ? `${terminalSize.width}px` : "800"} // Use the width from terminalSize if available
isInPhraseMode={this.state.isInPhraseMode}
heroAction={this.state.heroAction}
zombie4Action={this.state.zombie4Action}
/>
{/* ... other components */}
</>
);
}Make sure to call getTerminalSize() after the component has mounted and rendered, as the size measurements will be accurate only after the DOM elements have been fully laid out. You might need to trigger a re-render when the terminal size changes, for example, after window resizing or other layout updates.
User at 1:34 pm, Jun 3, 2024
I am trying this:
componentDidMount(): void {
this.terminalSize = this.adapterRef.current?.getTerminalSize();
}But this in the `render():
console.log('HandexTerm render', this.terminalSize);Ouputs this:
HandexTerm render undefined
Codeium at 1:34 pm, Jun 3, 2024
The issue you're encountering is likely because componentDidMount is called before the XtermAdapter has mounted and rendered, so this.adapterRef.current is still undefined at the time getTerminalSize() is called. To resolve this, you can use a lifecycle method or effect hook that will ensure the XtermAdapter has mounted, such as componentDidUpdate or a custom method that you call after confirming the component is mounted.
You can try setting the state once the XtermAdapter has mounted, which will trigger a re-render and should give you the correct terminal size:
componentDidMount(): void {
// you must check if the component is actually mounted
if (this.adapterRef.current) {
const size = this.adapterRef.current.getTerminalSize();
if (size) {
this.setState({ terminalSize: size });
}
}
}Then, in the render method, you can access the size from the state instead of a class property:
public render() {
console.log('HandexTerm render', this.state.terminalSize);
const terminalSize = this.state.terminalSize;
return (
<>
<Output
elements={this.state.outputElements}
onTouchStart={this.handleTouchStart}
onTouchEnd={this.handleTouchEnd}
onTouchMove={this.handleTouchMove}
/>
<TerminalGame
ref={this.terminalGameRef}
canvasHeight={this.canvasHeight}
canvasWidth={terminalSize ? `${terminalSize.width}px` : "800"} // Use the width from state if available
isInPhraseMode={this.state.isInPhraseMode}
heroAction={this.state.heroAction}
zombie4Action={this.state.zombie4Action}
/>
{/* ... other components */}
</>
);
}Remember to add terminalSize to the state type definition if you're using TypeScript to avoid type errors.
Also, if the XtermAdapter could update its size after certain interactions (like window resizing), you should set up an event listener to update the state accordingly.
User at 1:42 pm, Jun 3, 2024
It's working now but he canvas renders like this:
<canvas width="[object Object]px" height="100px"></canvas>Codeium at 1:42 pm, Jun 3, 2024
This issue occurs because this.state.terminalSize is an object with width and height properties, and when you're trying to set the canvasWidth prop, it's being stringified incorrectly.
Here's how you can correctly extract the width and height from this.state.terminalSize and apply them to the canvasWidth and canvasHeight props:
public render() {
const { terminalSize } = this.state;
const canvasWidth = terminalSize ? `${terminalState.width}px` : "800";
const canvasHeight = terminalSize ? `${terminalState.height}px` : "100";
return (
<>
{/* ... other components */}
<TerminalGame
ref={this.terminalGameRef}
canvasHeight={canvasHeight}
canvasWidth={canvasWidth}
isInPhraseMode={this.state.isInPhraseMode}
heroAction={this.state.heroAction}
zombie4Action={this.state.zombie4Action}
/>
{/* ... other components */}
</>
);
}Make sure you are using the correct property names (width and height) as defined in your getTerminalSize method or as they appear in your component's state. If the property names are different, adjust the code to match them.