static/share_btn.js

async () => {
    async function uploadFile(file) {
        const UPLOAD_URL = 'https://huggingface.co/uploads';
        const response = await fetch(UPLOAD_URL, {
            method: 'POST',
            headers: {
                'Content-Type': file.type,
                'X-Requested-With': 'XMLHttpRequest',
            },
            body: file, /// <- File inherits from Blob
        });
        const url = await response.text();
        return url;
    }

    async function getInputImgFile(imgEl) {
        const res = await fetch(imgEl.src);
        const blob = await res.blob();
        const imgId = Date.now() % 200;
        const isPng = imgEl.src.startsWith(`data:image/png`);
        if (isPng) {
            const fileName = `sd-perception-${{ imgId }}.png`;
            return new File([blob], fileName, { type: 'image/png' });
        } else {
            const fileName = `sd-perception-${{ imgId }}.jpg`;
            return new File([blob], fileName, { type: 'image/jpeg' });
        }
    }

    // const gradioEl = document.querySelector('body > gradio-app');
    const gradioEl = document.querySelector("gradio-app");
    const inputTxt = gradioEl.querySelector('#q-input textarea').value;
    let outputTxt = gradioEl.querySelector('#q-output .codemirror-wrapper .cm-scroller > div:nth-of-type(2)').innerText;
    outputTxt = `<pre>${outputTxt}</pre>`

    const titleLength = 150;
    let titleTxt = inputTxt;
    if (titleTxt.length > titleLength) {
        titleTxt = titleTxt.slice(0, titleLength) + ' ...';
    }

    const shareBtnEl = gradioEl.querySelector('#share-btn');
    const shareIconEl = gradioEl.querySelector('#share-btn-share-icon');
    const loadingIconEl = gradioEl.querySelector('#share-btn-loading-icon');

    if (!inputTxt || !outputTxt) {
        return;
    };

    shareBtnEl.style.pointerEvents = 'none';
    shareIconEl.style.display = 'none';
    loadingIconEl.style.removeProperty('display');

    const descriptionMd = `### Question:
${inputTxt}

### Answer:

${outputTxt}`;

    const params = {
        title: titleTxt,
        description: descriptionMd,
    };

    const paramsStr = Object.entries(params)
        .map(([key, value]) => `${encodeURIComponent(key)}=${encodeURIComponent(value)}`)
        .join('&');

    window.open(`https://huggingface.co/spaces/Fisharp/starcoder-playground/discussions/new?${paramsStr}`, '_blank');

    shareBtnEl.style.removeProperty('pointer-events');
    shareIconEl.style.removeProperty('display');
    loadingIconEl.style.display = 'none';
}