content.js

document.addEventListener('DOMContentLoaded', function () {
  chrome.runtime.onMessage.addListener(
    async (request, sender, sendResponse) => {
      if ('tip' === request.func && request.tip) {
        siyuanShowTip(request.msg)
        return
      }

      if ('copy2Clipboard' === request.func) {
        copyToClipboard(request.data)
        return
      }

      if ('copy' !== request.func) {
        return
      }

      siyuanShowTip('Clipping, please wait a moment...')

      const selection = window.getSelection()
      if (selection && 0 < selection.rangeCount) {
        const range = selection.getRangeAt(0)
        const tempElement = document.createElement('div')
        tempElement.appendChild(range.cloneContents())
        siyuanSendUpload(tempElement, request.tabId, request.srcUrl, "part")
      }
    })
  const copyToClipboard = (textToCopy) => {
    if (navigator.clipboard && window.isSecureContext) {
      return navigator.clipboard.writeText(textToCopy)
    }

    let textArea = document.createElement('textarea')
    textArea.value = textToCopy
    textArea.style.position = 'fixed'
    textArea.style.left = '-999999px'
    textArea.style.top = '-999999px'
    document.body.appendChild(textArea)
    textArea.focus()
    textArea.select()
    return new Promise((res, rej) => {
      document.execCommand('copy') ? res() : rej()
      textArea.remove()
    })
  }
})

const siyuanShowTip = (msg, timeout) => {
  let messageElement = document.getElementById('siyuanmessage')
  if (!messageElement) {
    document.body.insertAdjacentHTML('afterend', `<div style=" position:fixed;top: 0;z-index: 999999999;transform: translate3d(0, -100px, 0);opacity: 0;transition: opacity 0.15s cubic-bezier(0, 0, 0.2, 1) 0ms, transform 0.15s cubic-bezier(0, 0, 0.2, 1) 0ms;width: 100%;align-items: center;justify-content: center;height: 0;display: flex;" id="siyuanmessage">
<div style="line-height: 20px;border-radius: 4px;padding: 8px 16px;color: #fff;font-size: inherit;background-color: #4285f4;box-sizing: border-box;box-shadow: 0 3px 5px -1px rgba(0, 0, 0, 0.2), 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12);transition: transform 0.15s cubic-bezier(0, 0, 0.2, 1) 0ms;transform: scale(0.8);top: 16px;position: absolute;word-break: break-word;max-width: 80vw;"></div></div>`)
    messageElement = document.getElementById('siyuanmessage')
  }

  messageElement.style.transform = 'translate3d(0, 0, 0)'
  messageElement.style.opacity = '1'
  messageElement.firstElementChild.innerHTML = msg

  if (!timeout) {
    timeout = 3000
  }
  setTimeout(() => {
    siyuanClearTip()
  }, timeout)
}

const siyuanClearTip = () => {
  let messageElement = document.getElementById('siyuanmessage')
  if (!messageElement) {
    return
  }
  messageElement.style.transform = 'translate3d(0, -100px, 0)'
  messageElement.style.opacity = '0'
}

const siyuanConvertBlobToBase64 = (blob) => new Promise((resolve, reject) => {
  const reader = new FileReader
  reader.onerror = reject
  reader.onload = () => resolve(reader.result)
  reader.readAsDataURL(blob)
})

const siyuanSendUpload = async (tempElement, tabId, srcUrl, type, article, href) => {
  let srcList = []
  if (srcUrl) {
    srcList.push(srcUrl)
  }
  const images = tempElement.querySelectorAll('img')
  images.forEach(item => {
    let src = item.getAttribute('src')
    if (!src) {
      return
    }

    // 处理使用 data-original 属性的情况 https://github.com/siyuan-note/siyuan/issues/11826
    let dataOriginal = item.getAttribute('data-original')
    if (dataOriginal) {
      if (!src || !src.endsWith('.gif')) {
        src = dataOriginal
      }
    }

    if ('https:' === window.location.protocol && src.startsWith('http:')) {
      src = src.replace('http:', 'https:')
      item.setAttribute('src', src)
    }
    srcList.push(src)
  })

  const files = {}
  srcList = [...new Set(srcList)]
  let fetchFileErr = false;
  for (let i = 0; i < srcList.length; i++) {
    let src = srcList[i]
    const msgSrc = src.length > 64 ? src.substring(0, 64) + '...' : src
    siyuanShowTip('Clipping images [' + msgSrc + '], please wait a moment...')
    let response;
    try {
      // Wikipedia 使用图片原图 https://github.com/siyuan-note/siyuan/issues/11640
      if (-1 !== src.indexOf('wikipedia/commons/thumb/')) {
        let idx = src.lastIndexOf('.')
        let ext = src.substring(idx)
        if (0 < src.indexOf('.svg.png')) {
          ext = '.svg'
        }
        idx = src.indexOf(ext + '/')
        if (0 < idx) {
          src = src.substring(0, idx + ext.length)
          src = src.replace('/commons/thumb/', '/commons/')
        }
      }

      response = await fetch(src)
    } catch (e) {
      console.warn("fetch [" + src + "] failed", e)
      fetchFileErr = true;
      continue
    }
    const image = await response.blob()
    files[escape(src)] = {
      type: image.type,
      data: await siyuanConvertBlobToBase64(image),
    }
  }

  chrome.storage.sync.get({
    ip: 'http://127.0.0.1:6806',
    showTip: true,
    token: '',
    notebook: '',
  }, function (items) {
    if (!items.token) {
      siyuanShowTip('Please config API token before clipping content 剪藏前请先配置 API token')
      return
    }

    let title = article && article.title ? article.title : "";
    let siteName = article && article.siteName ? article.siteName : "";
    let excerpt = article && article.excerpt ? article.excerpt : "";
    const msgJSON = {
      fetchFileErr,
      files: files,
      dom: tempElement.innerHTML,
      api: items.ip,
      token: items.token,
      notebook: items.notebook,
      tip: items.showTip,
      title: title,
      siteName: siteName,
      excerpt: excerpt,
      href,
      type,
      tabId,
    };
    const jsonStr = JSON.stringify(msgJSON);
    const jsonBlob = new Blob([jsonStr], {type: "application/json"});
    const dataURL = URL.createObjectURL(jsonBlob);
    chrome.runtime.sendMessage({func: 'upload-copy', dataURL: dataURL})
  })
}

let toggle = false;
let scrollTimer;

const scrollTo1 = (callback) => {
  const onScroll = function () {
    // console.log(window.innerHeight, window.scrollY)
    if (0 >= window.scrollY || window.innerHeight / 2 > window.scrollY) {
      window.removeEventListener('scroll', onScroll)
      callback()
    }
  }

  window.addEventListener('scroll', onScroll)
  onScroll()
  toggle = !toggle;
  if (toggle) {
    scrollTimer = setInterval(function () {
      window.scrollBy(0, -window.innerHeight);
    }, 666);
  } else {
    clearInterval(scrollTimer);
  }
}