// *** Core Script - Export ***
async function init() {
if (window.location.pathname === '/auth/login') return;
const buttonOuterHTMLFallback = ``;
removeButtons();
if (window.buttonsInterval) {
clearInterval(window.buttonsInterval);
}
if (window.innerWidth < 767) return;
const chatConf = await invoke('get_app_conf') || {};
window.buttonsInterval = setInterval(() => {
const actionsArea = document.querySelector("form>div>div");
if (!actionsArea) {
return;
}
if (shouldAddButtons(actionsArea)) {
let TryAgainButton = actionsArea.querySelector("button");
if (!TryAgainButton) {
const parentNode = document.createElement("div");
parentNode.innerHTML = buttonOuterHTMLFallback;
TryAgainButton = parentNode.querySelector("button");
}
addActionsButtons(actionsArea, TryAgainButton, chatConf);
} else if (shouldRemoveButtons()) {
removeButtons();
}
}, 1000);
const Format = {
PNG: "png",
PDF: "pdf",
};
function shouldRemoveButtons() {
if (document.querySelector("form .text-2xl")) {
return true;
}
return false;
}
function shouldAddButtons(actionsArea) {
// first, check if there's a "Try Again" button and no other buttons
const buttons = actionsArea.querySelectorAll("button");
const hasTryAgainButton = Array.from(buttons).some((button) => {
return !/download-/.test(button.id);
});
const stopBtn = buttons?.[0]?.innerText;
if (/Stop generating/ig.test(stopBtn)) {
return false;
}
if (buttons.length === 2 && (/Regenerate response/ig.test(stopBtn) || buttons[1].innerText === '')) {
return true;
}
if (hasTryAgainButton && buttons.length === 1) {
return true;
}
// otherwise, check if open screen is not visible
const isOpenScreen = document.querySelector("h1.text-4xl");
if (isOpenScreen) {
return false;
}
// check if the conversation is finished and there are no share buttons
const finishedConversation = document.querySelector("form button>svg");
const hasShareButtons = actionsArea.querySelectorAll("button[share-ext]");
if (finishedConversation && !hasShareButtons.length) {
return true;
}
return false;
}
function removeButtons() {
const downloadButton = document.getElementById("download-png-button");
const downloadPdfButton = document.getElementById("download-pdf-button");
const downloadMdButton = document.getElementById("download-markdown-button");
if (downloadButton) {
downloadButton.remove();
}
if (downloadPdfButton) {
downloadPdfButton.remove();
}
if (downloadPdfButton) {
downloadMdButton.remove();
}
}
function addActionsButtons(actionsArea, TryAgainButton) {
const downloadButton = TryAgainButton.cloneNode(true);
// Export markdown
const exportMd = TryAgainButton.cloneNode(true);
exportMd.id = "download-markdown-button";
downloadButton.setAttribute("share-ext", "true");
exportMd.title = "Export Markdown";
exportMd.innerHTML = setIcon('md');
exportMd.onclick = () => {
exportMarkdown();
};
actionsArea.appendChild(exportMd);
// Generate PNG
downloadButton.id = "download-png-button";
downloadButton.setAttribute("share-ext", "true");
downloadButton.title = "Generate PNG";
downloadButton.innerHTML = setIcon('png');
downloadButton.onclick = () => {
downloadThread();
};
actionsArea.appendChild(downloadButton);
// Generate PDF
const downloadPdfButton = TryAgainButton.cloneNode(true);
downloadPdfButton.id = "download-pdf-button";
downloadButton.setAttribute("share-ext", "true");
downloadPdfButton.title = "Download PDF";
downloadPdfButton.innerHTML = setIcon('pdf');
downloadPdfButton.onclick = () => {
downloadThread({ as: Format.PDF });
};
actionsArea.appendChild(downloadPdfButton);
}
async function exportMarkdown() {
const content = Array.from(document.querySelectorAll('main .items-center>div')).map(i => {
let j = i.cloneNode(true);
if (/dark\:bg-gray-800/.test(i.getAttribute('class'))) {
j.innerHTML = `${i.innerHTML}
`;
}
return j.innerHTML;
}).join('');
const data = ExportMD.turndown(content);
const { id, filename } = getName();
await invoke('save_file', { name: `notes/${id}.md`, content: data });
await invoke('download_list', { pathname: 'chat.notes.json', filename, id, dir: 'notes' });
}
function downloadThread({ as = Format.PNG } = {}) {
const elements = new Elements();
elements.fixLocation();
const pixelRatio = window.devicePixelRatio;
const minRatio = as === Format.PDF ? 2 : 2.5;
window.devicePixelRatio = Math.max(pixelRatio, minRatio);
html2canvas(elements.thread, {
letterRendering: true,
}).then(async function (canvas) {
elements.restoreLocation();
window.devicePixelRatio = pixelRatio;
const imgData = canvas.toDataURL("image/png");
requestAnimationFrame(() => {
if (as === Format.PDF) {
return handlePdf(imgData, canvas, pixelRatio);
} else {
handleImg(imgData);
}
});
});
}
async function handleImg(imgData) {
const binaryData = atob(imgData.split("base64,")[1]);
const data = [];
for (let i = 0; i < binaryData.length; i++) {
data.push(binaryData.charCodeAt(i));
}
const { pathname, id, filename } = getName();
await invoke('download', { name: `download/img/${id}.png`, blob: data });
await invoke('download_list', { pathname, filename, id, dir: 'download' });
}
async function handlePdf(imgData, canvas, pixelRatio) {
const { jsPDF } = window.jspdf;
const orientation = canvas.width > canvas.height ? "l" : "p";
var pdf = new jsPDF(orientation, "pt", [
canvas.width / pixelRatio,
canvas.height / pixelRatio,
]);
var pdfWidth = pdf.internal.pageSize.getWidth();
var pdfHeight = pdf.internal.pageSize.getHeight();
pdf.addImage(imgData, "PNG", 0, 0, pdfWidth, pdfHeight, '', 'FAST');
const { pathname, id, filename } = getName();
const data = pdf.__private__.getArrayBuffer(pdf.__private__.buildDocument());
await invoke('download', { name: `download/pdf/${id}.pdf`, blob: Array.from(new Uint8Array(data)) });
await invoke('download_list', { pathname, filename, id, dir: 'download' });
}
function getName() {
const id = window.crypto.getRandomValues(new Uint32Array(1))[0].toString(36);
const name = document.querySelector('nav .overflow-y-auto a.hover\\:bg-gray-800')?.innerText?.trim() || '';
return { filename: name ? name : id, id, pathname: 'chat.download.json' };
}
class Elements {
constructor() {
this.init();
}
init() {
// this.threadWrapper = document.querySelector(".cdfdFe");
this.spacer = document.querySelector("[class*='h-48'].w-full.flex-shrink-0");
this.thread = document.querySelector(
"[class*='react-scroll-to-bottom']>[class*='react-scroll-to-bottom']>div"
);
// fix: old chat https://github.com/lencx/ChatGPT/issues/185
if (!this.thread) {
this.thread = document.querySelector("main .overflow-y-auto");
}
// h-full overflow-y-auto
this.positionForm = document.querySelector("form").parentNode;
// this.styledThread = document.querySelector("main");
// this.threadContent = document.querySelector(".gAnhyd");
this.scroller = Array.from(
document.querySelectorAll('[class*="react-scroll-to"]')
).filter((el) => el.classList.contains("h-full"))[0];
// fix: old chat
if (!this.scroller) {
this.scroller = document.querySelector('main .overflow-y-auto');
}
this.hiddens = Array.from(document.querySelectorAll(".overflow-hidden"));
this.images = Array.from(document.querySelectorAll("img[srcset]"));
}
fixLocation() {
this.hiddens.forEach((el) => {
el.classList.remove("overflow-hidden");
});
this.spacer.style.display = "none";
this.thread.style.maxWidth = "960px";
this.thread.style.marginInline = "auto";
this.positionForm.style.display = "none";
this.scroller.classList.remove("h-full");
this.scroller.style.minHeight = "100vh";
this.images.forEach((img) => {
const srcset = img.getAttribute("srcset");
img.setAttribute("srcset_old", srcset);
img.setAttribute("srcset", "");
});
//Fix to the text shifting down when generating the canvas
document.body.style.lineHeight = "0.5";
}
restoreLocation() {
this.hiddens.forEach((el) => {
el.classList.add("overflow-hidden");
});
this.spacer.style.display = null;
this.thread.style.maxWidth = null;
this.thread.style.marginInline = null;
this.positionForm.style.display = null;
this.scroller.classList.add("h-full");
this.scroller.style.minHeight = null;
this.images.forEach((img) => {
const srcset = img.getAttribute("srcset_old");
img.setAttribute("srcset", srcset);
img.setAttribute("srcset_old", "");
});
document.body.style.lineHeight = null;
}
}
function setIcon(type) {
return {
// link: ``,
png: ``,
pdf: ``,
md: ``,
}[type];
}
}
window.addEventListener('resize', init);
if (
document.readyState === "complete" ||
document.readyState === "interactive"
) {
init();
} else {
document.addEventListener("DOMContentLoaded", init);
}