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// SPDX-License-Identifier: AGPL-3.0-or-later
import "../../../node_modules/swiped-events/src/swiped-events.js";
import { assertElement, listen, mutable, settings } from "../core/toolkit.ts";
let imgTimeoutID: number;
const imageLoader = (resultElement: HTMLElement): void => {
if (imgTimeoutID) clearTimeout(imgTimeoutID);
const imgElement = resultElement.querySelector<HTMLImageElement>(".result-images-source img");
if (!imgElement) return;
// use thumbnail until full image loads
const thumbnail = resultElement.querySelector<HTMLImageElement>(".image_thumbnail");
if (thumbnail) {
if (thumbnail.src === `${settings.theme_static_path}/img/img_load_error.svg`) return;
imgElement.onerror = (): void => {
imgElement.src = thumbnail.src;
};
imgElement.src = thumbnail.src;
}
const imgSource = imgElement.getAttribute("data-src");
if (!imgSource) return;
// unsafe nodejs specific, cast to https://developer.mozilla.org/en-US/docs/Web/API/Window/setTimeout#return_value
// https://github.com/searxng/searxng/pull/5073#discussion_r2265767231
imgTimeoutID = setTimeout(() => {
imgElement.src = imgSource;
imgElement.removeAttribute("data-src");
}, 1000) as unknown as number;
};
const imageThumbnails: NodeListOf<HTMLImageElement> =
document.querySelectorAll<HTMLImageElement>("#urls img.image_thumbnail");
for (const thumbnail of imageThumbnails) {
if (thumbnail.complete && thumbnail.naturalWidth === 0) {
thumbnail.src = `${settings.theme_static_path}/img/img_load_error.svg`;
}
thumbnail.onerror = (): void => {
thumbnail.src = `${settings.theme_static_path}/img/img_load_error.svg`;
};
}
const copyUrlButton: HTMLButtonElement | null =
document.querySelector<HTMLButtonElement>("#search_url button#copy_url");
copyUrlButton?.style.setProperty("display", "block");
mutable.selectImage = (resultElement: HTMLElement): void => {
// add a class that can be evaluated in the CSS and indicates that the
// detail view is open
const resultsElement = document.getElementById("results");
resultsElement?.classList.add("image-detail-open");
// add a hash to the browser history so that pressing back doesn't return
// to the previous page this allows us to dismiss the image details on
// pressing the back button on mobile devices
window.location.hash = "#image-viewer";
mutable.scrollPageToSelected?.();
// if there is no element given by the caller, stop here
if (!resultElement) return;
imageLoader(resultElement);
};
mutable.closeDetail = (): void => {
const resultsElement = document.getElementById("results");
resultsElement?.classList.remove("image-detail-open");
// remove #image-viewer hash from url by navigating back
if (window.location.hash === "#image-viewer") {
window.history.back();
}
mutable.scrollPageToSelected?.();
};
listen("click", ".btn-collapse", function (this: HTMLElement) {
const btnLabelCollapsed = this.getAttribute("data-btn-text-collapsed");
const btnLabelNotCollapsed = this.getAttribute("data-btn-text-not-collapsed");
const target = this.getAttribute("data-target");
if (!(target && btnLabelCollapsed && btnLabelNotCollapsed)) return;
const targetElement = document.querySelector<HTMLElement>(target);
assertElement(targetElement);
const isCollapsed = this.classList.contains("collapsed");
const newLabel = isCollapsed ? btnLabelNotCollapsed : btnLabelCollapsed;
const oldLabel = isCollapsed ? btnLabelCollapsed : btnLabelNotCollapsed;
this.innerHTML = this.innerHTML.replace(oldLabel, newLabel);
this.classList.toggle("collapsed");
targetElement.classList.toggle("invisible");
});
listen("click", ".media-loader", function (this: HTMLElement) {
const target = this.getAttribute("data-target");
if (!target) return;
const iframeLoad = document.querySelector<HTMLIFrameElement>(`${target} > iframe`);
assertElement(iframeLoad);
const srctest = iframeLoad.getAttribute("src");
if (!srctest) {
const dataSrc = iframeLoad.getAttribute("data-src");
if (dataSrc) {
iframeLoad.setAttribute("src", dataSrc);
}
}
});
listen("click", "#copy_url", async function (this: HTMLElement) {
const target = this.parentElement?.querySelector<HTMLPreElement>("pre");
assertElement(target);
if (window.isSecureContext) {
await navigator.clipboard.writeText(target.innerText);
} else {
const selection = window.getSelection();
if (selection) {
const range = document.createRange();
range.selectNodeContents(target);
selection.removeAllRanges();
selection.addRange(range);
document.execCommand("copy");
}
}
const copiedText = this.dataset.copiedText;
if (copiedText) {
this.innerText = copiedText;
}
});
listen("click", ".result-detail-close", (event: Event) => {
event.preventDefault();
mutable.closeDetail?.();
});
listen("click", ".result-detail-previous", (event: Event) => {
event.preventDefault();
mutable.selectPrevious?.(false);
});
listen("click", ".result-detail-next", (event: Event) => {
event.preventDefault();
mutable.selectNext?.(false);
});
// listen for the back button to be pressed and dismiss the image details when called
window.addEventListener("hashchange", () => {
if (window.location.hash !== "#image-viewer") {
mutable.closeDetail?.();
}
});
const swipeHorizontal: NodeListOf<HTMLElement> = document.querySelectorAll<HTMLElement>(".swipe-horizontal");
for (const element of swipeHorizontal) {
listen("swiped-left", element, () => {
mutable.selectNext?.(false);
});
listen("swiped-right", element, () => {
mutable.selectPrevious?.(false);
});
}
window.addEventListener(
"scroll",
() => {
const backToTopElement = document.getElementById("backToTop");
const resultsElement = document.getElementById("results");
if (backToTopElement && resultsElement) {
const scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
const isScrolling = scrollTop >= 100;
resultsElement.classList.toggle("scrolling", isScrolling);
}
},
true
);
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