コンテンツのダウンロード

var currentPath = "/";
var wlansd = new Array();
var doesFileExist = false;

function onLoad(){
  document.addEventListener("deviceready", onDeviceReady, false);
}

function onDeviceReady(){
  getFileList("");
  $(document).on("click", "a.dir", function(){
    getFileList(this.text);
  });
  $(document).on("click", "a.file", function(){
    downloadFile(this.text, currentPath);
  });
  document.addEventListener("backbutton", onBackKeyDown, false);
  $("#head-left").click(function(){
    onBackKeyDown();
  });
}

function onBackKeyDown(){
  if(doesFileExist == false){
    location.href = "index.html";
  } else if(currentPath == "/"){
    location.href = "index.html";
  } else {
    getFileList("..");
  }
}
// Get the content list.
function getFileList(dir){
  doesFileExist = false;
  var nextPath = makePath(dir);
  var url = "http://flashair/command.cgi?op=100&DIR=" + nextPath;

  $.get(url, function(data){
    //Save the current path.
    currentPath = nextPath;
    // Split lines by new line characters.
    wlansd = data.split(/\n/g);
    // Ignore the first line (title) and last line (blank).
    wlansd.shift();
    wlansd.pop();
    splitFileList(currentPath);
    wlansd.sort(cmptime);
    showFileList(currentPath);
    // Success to get content list.
    doesFileExist = true;
  });
}
// Make a Path to show next.
function makePath(dir){
  var arrPath = currentPath.split("/");

  if(currentPath == "/"){
    arrPath.pop();
  }
  if(dir == ".."){
    // Go to parent directory. Remove last fragment.
    arrPath.pop();
  } else if(dir != "" && dir != "."){
    // Go to child directory. Append dir to the current path.
    arrPath.push(dir);
  }
  if (arrPath.length == 1){
    arrPath.push("");
  }
  return arrPath.join("/");
}
// Split the content list data.
function splitFileList(){
  for(var i=0; i<wlansd.length; i++){
    var elements = wlansd[i].split(",");
    wlansd[i] = new Array();
    wlansd[i]["r_uri"] = elements[0];
    wlansd[i]["fname"] = elements[1];
    wlansd[i]["fsize"] = Number(elements[2]);
    wlansd[i]["attr"]  = Number(elements[3]);
    wlansd[i]["fdate"] = Number(elements[4]);
    wlansd[i]["ftime"] = Number(elements[5]);
  }
}
// Sort contents by date and time.
function cmptime(a,b){
  if(a["fdate"] == b["fdate"]){
    return a["ftime"] - b["ftime"];
  } else {
    return a["fdate"] - b["fdate"];
  }
}
// Show the content list.
function showFileList(){
  $("#list").html("");
  $.each(wlansd, function(){
    var file = this;
    var filelink = $("<a href='javascript:void(0)'></a>");
    var caption = file["fname"];
    var faDir = file["r_uri"];
    var fileobj = $("<div></div>");
    // Skip hidden file.
    if(file["attr"] & 0x02){
      return;
    }
    // Make a link to directories and files.
    if(file["attr"] & 0x10){
      filelink.addClass("dir");
    } else {
      filelink.addClass("file");
    }
    $("#list").append(
      fileobj.append(
        filelink.append(
          caption
        )
      )
    );
  });
}
// Download the content.
function downloadFile(fname, dir){
  var fileTransfer = new FileTransfer();
  var dlPath = dir !="/" ? dir + "/" + fname : dir + fname;
  var dlUrl = encodeURI("http://flashair" + dlPath);
  var destUrl = encodeURI("cdvfile://localhost/persistent/download/" + fname);

  fileTransfer.download(dlUrl, destUrl, function(entry) {
      window.open = cordova.InAppBrowser.open(entry.toURL(), "_blank", "location=no");
  }, function(error) {
    switch (error.code){
      case 1:
        alert("Failed to download the file. Error code is 'FILE_NOT_FOUND_ERR'");
        break;
      case 2:
        alert("Failed to download the file. Error code is 'INVALID_URL_ERR'");
        break;
      case 3:
        alert("Failed to download the file. Error code is 'CONNECTION_ERR'");
        break;
      case 4:
        alert("Failed to download the file. Error code is 'ABORT_ERR'");
        break;
      case 5:
        alert("Failed to download the file. Error code is 'NOT_MODIFIED_ERR'");
        break;
    }
  });
}