rkgk/static/brush-preview.js

export class BrushPreview extends HTMLElement {
    constructor(width, height) {
        super();

        this.width = width;
        this.height = height;
    }

    connectedCallback() {
        // TODO
    }

    async #renderBrushInner(haku) {
        // TODO
        return { status: "ok" };
    }

    async renderBrush(haku) {
        this.unsetErrorFlag();
        let result = await this.#renderBrushInner(haku);
        if (result.status == "error") {
            console.error(result);
            this.setErrorFlag();
        }
        return result;
    }

    unsetErrorFlag() {
        this.classList.remove("error");
    }

    setErrorFlag() {
        this.classList.add("error");
    }
}

customElements.define("rkgk-brush-preview", BrushPreview);