webAO/dom/updateBackgroundPreview.ts


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import { AO_HOST } from '../client/aoHost';
import tryUrls from "../utils/tryUrls";

/**
 * Update background preview.
 */
export function updateBackgroundPreview() {
    const background_select = <HTMLSelectElement>(
        document.getElementById("bg_select")
    );
    const background_filename = <HTMLInputElement>(
        document.getElementById("bg_filename")
    );
    const background_preview = <HTMLImageElement>(
        document.getElementById("bg_preview")
    );

    if (background_select.selectedIndex === 0) {
        background_filename.style.display = "initial";
    } else {
        background_filename.style.display = "none";
    }
    tryUrls(`${AO_HOST}background/${encodeURI(
        background_select.value.toLowerCase()
    )}/defenseempty`).then((resp) => {
        background_preview.src = resp;
    });
}
window.updateBackgroundPreview = updateBackgroundPreview;