Kuran/frames.html at master · maeyler/Kuran · GitHub

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<!DOCTYPE html>
<html lang="en-US">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport"    content="width=device-width">
    <meta name="theme-color" content="cyan" />
    <meta name="author"      content="M A Eyler, Istanbul, 2020" />
    <meta name="description" content="Reader for the Quran" />
    <link rel="manifest" href="manifest.json">
    <link rel="icon" href="image/icon.png">
    <title>Iqra V4</title>
  <style>
    body {
      margin: 0;
      background-color: #8ff;
    }
    iframe {
      display: inline-block;
      position: absolute;
      box-sizing: border-box;
      border: none;
      height: 100%;
    }
    button {
      position: fixed;
      top: 8px; right: 0;
      background-color: pink;
    }
  </style>
  </head>
  <body>

  <iframe id=findFrm src='start.html' name=finder></iframe>
  <iframe id=readFrm src='reader.html' name=iqra></iframe>

  <button id=closeM title='Arama panelini kapat'>x</button>
  <button id=openM hidden title='Arama paneline dön'>A</button>

<script src="code/common.js"></script>
<script>
function addListener(frm) {
  frm.contentWindow.addEventListener('hashchange', reportHash)
  console.log('* addListener *', frm.name)
}
function reportHash(e) { //hashchange in one of the panes
  let s = '[Dış kaynak]', h = ''
  if (e.target.name == 'iqra') {
    if (skipEvent) {
      skipEvent = false; return
    }
    if (readFrm.style.display == 'none') hideFinder()
    s = e.target.document.title
    h = e.target.location.hash
  } else { // finder
    try {
      let p = finder.location.pathname //may fail
      isStartPage = p.includes("start.html")
    } catch (e) {
      isStartPage = false //external page
    }
    if (lastPath != null && e.target.document) {
      s = e.target.document.title
      h = e.target.location.hash
    }
    if (findFrm.style.display == 'none') showFinder()
  }
  document.title = VERSION +' '+ s
  // console.log('* reportHash *', h, location.hash)
  if (h=='' || window.location.hash == h) return
  window.location.hash = h
  hashInProgress = true
}
function hashModified() {
  let h = decodedHash()
  console.log('** hashInProgress='+hashInProgress, h)
  if (hashInProgress || !h || h.length<3) {
    hashInProgress = false; return
  } else switch (h.substring(0, 2)) { //new address entered
    case 'p=': case 'v=':
      window.open('reader.html#'+h, 'iqra'); hideFinder()
      break;
    case 'r=':
      window.open('mujam.html#'+h, 'finder')
      break;
    case 'b=': case 'w=': case 't=':
      window.open(FINDER+'#'+h, 'finder')
      break
    default:
        console.log('unknown hash entered', h)
  }
}
function startPane() {
  if (isStartPage) hideFinder()
  else {
    window.open('start.html', 'finder')
    isStartPage = true
  }
}
function hideFinder() {
  closeM.hidden=true; openM.hidden=false
  resize()
}
function showFinder() {
  closeM.hidden=false; openM.hidden=true
  // if (!findFrm.src) findFrm.src = 'mujam.html'
  resize()
}
var WIDTH = 500  //can be modified in dev tools
function resize() {
    const HIDE = 'none', SHOW = ''
    let W = Math.min(window.innerWidth, screen.width)
    if (closeM.hidden) { //hideFinder
      setStyle(findFrm.style, HIDE)
      let x2 = 0, w2 = W
      if (W>600 && W<=850) { //single column
        x2 = Math.trunc((W-WIDTH)/2); w2 = WIDTH
      }
      setStyle(readFrm.style, SHOW, x2, w2)
    } else { //showFinder
      if (W <= 850) { //single column
        setStyle(findFrm.style, SHOW, 0, W)
        setStyle(readFrm.style, HIDE)
        closeM.style.right = ''
      } else { //two columns
        findFrm.style.borderRight = '1px solid cyan'
        let w2 = WIDTH, x2 = W - w2
        setStyle(findFrm.style, SHOW, 0, x2)
        setStyle(readFrm.style, SHOW, x2, w2)
        closeM.style.right = w2+'px'
      }
    }
    function setStyle(s, d, x, w) {
      s.display = d; if (d == HIDE) return
      s.left  = (x == 0)? 0 : x+'px'
      s.width = (w == W)? '100%' : w+'px'
    }
  }
  function sourceChanged(e) {
    try {
      let p = finder.location.pathname
      if (lastPath != p) {
        lastPath = p; addListener(findFrm)
      }
    } catch (err) {
      lastPath = null // cannot read location
    }
    console.log('* sourceChanged *', lastPath)
    reportHash(e)
  }
  function initReader() {
    console.log('* initReader *', initialHash)
    if (!iqra.initialized) { //good idea, poor practice
      setTimeout(initReader, 500); return
    }
    resize(); addListener(readFrm); //hashModified()
    if (!initialHash) return
    window.location.hash = initialHash
    initialHash = null
  }
  var lastPath  // finder location
  var isStartPage = true // is shown?
  var hashInProgress = false
  var initialHash = decodedHash()
  var skipEvent = !initialHash
  console.log('* start *', initialHash, location.hash)
  readFrm.style.display = 'none' //hide iqra frame
  window.name = 'iqraTop'
  window.onresize = resize
  window.onhashchange = hashModified
  closeM.onclick = startPane  //hideFinder
  openM.onclick  = showFinder
  readFrm.onload = initReader
  findFrm.onload = sourceChanged
  iqra.addEventListener('hashchange', reportHash)
  window.onerror = console.log
  window.onbeforeinstallprompt = (e) => {
    iqra.beforeinstallCB(e)
    console.log('beforeinstallprompt event')
  }
</script>

  </body>
</html>