/* Zenphoto administration javascript. */

function confirmDeleteAlbum(url, message1, message2) {
  if (confirm(message1)) {
    if (confirm(message2)) {
      window.location = url;
    }
  }
}

function confirmDeleteImage(url, message) {
  if (confirm(message)) {
    window.location = url;
  }
}

function addUploadBoxes(placeholderid, copyfromid, num) {
  var placeholder = document.getElementById(placeholderid);
  var copyfrom = document.getElementById(copyfromid);
  for (i=0; i<num; i++) {
    if (window.totalinputs >= 50) return;
    var newdiv = document.createElement('div');
    newdiv.innerHTML = copyfrom.innerHTML;
    newdiv.className = copyfrom.className;
    placeholder.parentNode.insertBefore(newdiv, placeholder);
    window.totalinputs++;
  }
}

function albumSwitch(sel) {
  var selected = sel.options[sel.selectedIndex];
  var albumtext = document.getElementById("albumtext");
  var publishtext = document.getElementById("publishtext");
  var albumbox = document.getElementById("folderdisplay");
  var titlebox = document.getElementById("albumtitle");
  var checkbox = document.getElementById("autogen");
  var newalbumbox = sel.form.newalbum;
  var folder = sel.form.folder;
  var exists = sel.form.existingfolder;
  
  if (selected.value == "") {
    newalbumbox.checked = true;
    newalbumbox.disabled = true;
    newalbumbox.style.display = "none";
  } else {
    newalbumbox.disabled = false;
    newalbumbox.style.display = "";
  }
  
  var newalbum = selected.value == "" || newalbumbox.checked;
  if (newalbum) {
    albumtext.style.display = "block";
    publishtext.style.display = "block";
    albumbox.value = "";
    folder.value   = "";
    titlebox.value = "";
    exists.value = false;
    checkbox.checked = true;
    document.getElementById("foldererror").style.display = "none";
    toggleAutogen("folderdisplay", "albumtitle", checkbox);
  } else {
    albumtext.style.display = "none";
    publishtext.style.display = "none";
    albumbox.value = selected.value;
    folder.value   = selected.value;
    titlebox.value = selected.text;
    exists.value = true;
  }
  validateFolder(folder);
}


function contains(arr, key) {
  for (i=0; i<arr.length; i++) {
    if (arr[i].toLowerCase() == key.toLowerCase()) {
      return true;
    }
  }
  return false;
}

function updateFolder(nameObj, folderID, checkboxID) {
  var autogen = document.getElementById(checkboxID).checked;
  var folder = document.getElementById(folderID);
  var parentfolder = document.getElementById('albumselectmenu').value;
  if (parentfolder != '') parentfolder += '/';
  var name = nameObj.value;
  var fname = "";
  var fnamesuffix = "";
  var count = 1;
  if (autogen && name != "") {
    fname = name;
    fname = fname.toLowerCase();
    fname = fname.replace(/[\!@#$\%\^&*()\~`\'\"]/g, "");
    fname = fname.replace(/^\s+|\s+$/g, "");
    fname = fname.replace(/[^a-zA-Z0-9]/g, "-");
    fname = fname.replace(/--*/g, "-");
    while (contains(albumArray, parentfolder + fname + fnamesuffix)) {
      fnamesuffix = "-"+count;
      count++;
    }
  }
  folder.value = parentfolder + fname + fnamesuffix;
  validateFolder(folder);
}

function validateFolder(folderObj) {
  var errorDiv = document.getElementById("foldererror");
  var exists = document.uploadform.existingfolder.value != "false";
  var uploadBoxesDiv = document.getElementById("uploadboxes");
  if (!exists && albumArray && contains(albumArray, folderObj.value)) {
    errorDiv.style.display = "block";
    errorDiv.innerHTML = "That name is already used.";
    uploadBoxesDiv.style.display = "none";
    return false;
  } else if (folderObj.value == "") {
    errorDiv.style.display = "block";
    errorDiv.innerHTML = "This upload has to have a folder. Type a title or folder name to continue...";
    uploadBoxesDiv.style.display = "none";
    return false;
  } else {
    errorDiv.style.display = "none";
    errorDiv.innerHTML = "";
    uploadBoxesDiv.style.display = "block";
    return true;
  }
}

function toggleAutogen(fieldID, nameID, checkbox) {
  var field = document.getElementById(fieldID);
  var name = document.getElementById(nameID);
  if (checkbox.checked) {
    window.folderbackup = field.value;
    field.disabled = true;
    updateFolder(name, fieldID, checkbox.id);
  } else {
    if (window.folderbackup && window.folderbackup != "")
      field.value = window.folderbackup;
    field.disabled = false;
  }
}


// Checks all the checkboxes in a group (with the specified name);
function checkAll(form, arr, mark) { 
  for (i = 0; i <= form.elements.length; i++) { 
    try { 
      if(form.elements[i].name == arr) { 
        form.elements[i].checked = mark; 
      }
    } catch(e) {} 
  }
}

function triggerAllBox(form, arr, allbox) { 
  for (i = 0; i <= form.elements.length; i++) { 
    try { 
      if(form.elements[i].name == arr) { 
        if(form.elements[i].checked == false) { 
          allbox.checked = false; return;
        }
      }
    } catch(e) {}
  }
  allbox.checked = true;
}


function toggleBigImage(id, largepath) {
  var imageobj = document.getElementById(id);
  if (!imageobj.sizedlarge) {
    imageobj.src2 = imageobj.src;
    imageobj.src = largepath;
    imageobj.style.position = 'absolute';
    imageobj.style.zIndex = '1000';
    imageobj.sizedlarge = true;
  } else {
    imageobj.style.position = 'relative';
    imageobj.style.zIndex = '0';
    imageobj.src = imageobj.src2;
    imageobj.sizedlarge = false;
  }
}


function updateThumbPreview(selectObj) {
  var thumb = selectObj.options[selectObj.selectedIndex].style.backgroundImage;
  selectObj.style.backgroundImage = thumb;
}