/////////////////////////////////////////////////////////////
//
// pgAdmin 4 - PostgreSQL Tools
//
// Copyright (C) 2013 - 2021, The pgAdmin Development Team
// This software is released under the PostgreSQL Licence
//
//////////////////////////////////////////////////////////////

/**
 * Filemanager JS core
 *
 * filemanager.js
 *
 *  @license  MIT License
 *  @author Jason Huck - Core Five Labs
 *  @author Simon Georget <simon (at) linea21 (dot) com>
 *  @copyright  Authors
 */
define([
  'jquery', 'underscore', 'pgadmin.alertifyjs',
  'sources/gettext', 'sources/url_for', 'dropzone', 'sources/pgadmin',
  'sources/csrf', 'tablesorter', 'tablesorter-metric',
], function($, _, Alertify, gettext, url_for, Dropzone, pgAdmin, csrf) {

  pgAdmin.Browser = pgAdmin.Browser || {};

  /*---------------------------------------------------------
    Define functions used for various operations
  ---------------------------------------------------------*/
  // Set the CSRF Token
  csrf.setPGCSRFToken(pgAdmin.csrf_token_header, pgAdmin.csrf_token);

  // Return file extension
  var getFileExtension = function(name) {
    var found = name.lastIndexOf('.') + 1;
    return (found > 0 ? name.substr(found) : '');
  };

  /* Common function to load:
   * en.json language file
   * file_manager_config.js config file
   * return transaction id
   */
  var loadData = function(url) {
    return $.ajax({
      async: false,
      cache: false,
      url: url,
      dataType: 'json',
      contentType: 'application/json; charset=utf-8',
    });
  };

  var getFileFormat = function(data) {
  // Get last selected file format
    return $.ajax({
      async: false,
      cache: false,
      url: url_for('settings.get_file_format_setting'),
      data : $.extend({}, data),
      dataType: 'json',
      contentType: 'application/json; charset=utf-8',
    });
  };

  // Set enable/disable state of list and grid view
  var setViewButtonsFor = function(viewMode) {
    if (viewMode == 'grid') {
      $('.grid').addClass('ON');
      $('.list').removeClass('ON');
    } else {
      $('.list').addClass('ON');
      $('.grid').removeClass('ON');
    }
  };

  var save_file_dialog_view = function(view, trans_id) {
    return $.ajax({
      url: url_for('file_manager.save_file_dialog_view', {
        'trans_id': trans_id,
      }),
      type: 'POST',
      async: true,
      data: JSON.stringify({
        'view': view,
      }),
      contentType: 'application/json',
    });
  };

  var save_show_hidden_file_option = function(option, trans_id) {
    return $.ajax({
      url: url_for('file_manager.save_show_hidden_file_option', {
        'trans_id': trans_id,
      }),
      type: 'PUT',
      async: true,
      data: JSON.stringify({
        'show_hidden': option,
      }),
      contentType: 'application/json',
    });
  };

  // nameFormat (), separate filename from extension
  var nameFormat = function(input) {
    var filename = '';
    if (input.lastIndexOf('.') != -1) {
      filename = input.substr(0, input.lastIndexOf('.'));
      filename += '.' + input.split('.').pop();
    } else {
      filename = input;
    }
    return filename;
  };

  /*
   * Test if Data structure has the 'cap' capability
   * 'cap' is one of 'select', 'rename', 'delete', 'download'
   */
  var has_capability = function(data, cap) {
    if (typeof(data.Capabilities) == 'undefined') {
      return true;
    } else {
      return ($.inArray(cap, data.Capabilities) > -1);
    }
  };

  // return filename extension
  var getExtension = function(filename) {
    if (filename.split('.').length == 1) {
      return '';
    }
    return filename.split('.').pop();
  };

  /*
   * Binds specific actions to the toolbar based on capability.
   * and show/hide buttons
   */
  var bindToolbar = function(data) {

    // hide/show rename, upload and create button
    if (_.has(data, 'Capabilities')) {
      _.each(data.Capabilities, function(cap) {
        var target_btn = 'button.' + cap,
          $target_el = $('.file_manager').find(target_btn);
        if (!has_capability(data, cap) || pgAdmin.FileUtils.hideButtons()) {
          $target_el.hide();
        } else {
          $target_el.show();
        }
      });
    }

    if (!has_capability(data, 'delete') || pgAdmin.FileUtils.hideButtons()) {
      $('.file_manager').find('button.delete').hide();
    } else {
      $('.file_manager').find('button.delete').on('click',() => {
        // hide dimmer
        $('.fileinfo .delete_item, .fm_dimmer').show();
      });

      // take action based on pressed button yes or no
      $('.fileinfo .delete_item button.btn_yes').off().on('click', function() {
        var path;
        if ($('.fileinfo').data('view') == 'grid') {
          path = decodeURI($('.fileinfo').find('#contents li.selected .clip span').attr('data-alt'));
          if (path.lastIndexOf('/') == path.length - 1) {
            data.Path = path;
            deleteItem(data);
          } else {
            deleteItem(data);
          }
        } else {
          path = $('.fileinfo').find('table#contents tbody tr.selected td:first-child').attr('title');
          if (path.lastIndexOf('/') == path.length - 1) {
            data.Path = path;
            deleteItem(data);
          } else {
            deleteItem(data);
          }
        }
        // hide dimmer
        $('.fileinfo .fm_dimmer').hide();
      });

    }

    // Download file on download button click
    if (!has_capability(data, 'download') || pgAdmin.FileUtils.hideButtons()) {
      $('.file_manager').find('button.download').hide();
    } else {
      $('.file_manager').find('button.download').off().on('click', function() {
        var path,
          params = {};

        params[pgAdmin.csrf_token_header] = pgAdmin.csrf_token;

        if ($('.fileinfo').data('view') == 'grid') {
          path = $('.fileinfo li.selected').find('.clip span').attr('data-alt');
        } else {
          path = $('.fileinfo').find('table#contents tbody tr.selected td:first-child').attr('title');
        }
        download_file(path);
      });
    }
  };

  // enable/disable button when files/folder are loaded
  var enable_disable_btn = function() {
    if ($('.fileinfo').data('view') == 'grid') {
      var $grid_file = $('.file_manager').find('#contents li.selected');
      $grid_file.removeClass('selected');
      $('.file_manager').find('button.delete').prop('disabled', true);
      $('.file_manager').find('button.download').prop('disabled', true);
      $('.file_manager').find('button.rename').prop('disabled', true);
      if ($grid_file.length > 0) {
        $('.file_manager_ok').addClass('disabled');
        $('.file_manager_ok').attr('disabled', true);
      }
    } else {
      var $list_file = $('.fileinfo').find('table#contents tbody tr.selected');
      $list_file.removeClass('selected');
      $('.file_manager').find('button.delete').prop('disabled', true);
      $('.file_manager').find('button.download').prop('disabled', true);
      $('.file_manager').find('button.rename').prop('disabled', true);
      if ($list_file.length > 0) {
        $('.file_manager_ok').addClass('disabled');
        $('.file_manager_ok').attr('disabled', true);
      }
    }

    $('.delete_item').hide();
    // clear address bar
    $('.file_manager #uploader .input-path').show();
    $('.file_manager #uploader .show_selected_file').remove();
  };

  /*
   * Rename the current item and returns the new name.
   * by double clicking or by clicking the "Rename" button in
   * table(list) views.
   */
  var renameItem = function(data) {
    var finalName = '',
      lg = pgAdmin.FileUtils.lg,
      getNewName = function(rname) {
        if (rname !== '') {
          var givenName = nameFormat(rname),
            suffix = getExtension(data.Filename);
          if (suffix.length > 0) {
            givenName = givenName + '.' + suffix;
          }

          var oldPath = data.Path,
            post_data = {
              'mode': 'rename',
              'old': data.Path,
              'new': givenName,
            };

          $.ajax({
            type: 'POST',
            data: JSON.stringify(post_data),
            url: pgAdmin.FileUtils.fileConnector,
            dataType: 'json',
            contentType: 'application/json; charset=utf-8',
            async: false,
          })
            .done(function(resp) {
              var result = resp.data.result;
              if (result.Code === 1) {
                var newPath = result['New Path'],
                  newName = result['New Name'],
                  title = $('#preview h1').attr('title');

                if (typeof title != 'undefined' && title == oldPath) {
                  $('#preview h1').text(newName);
                }

                if ($('.fileinfo').data('view') == 'grid') {
                  $('.fileinfo span[data-alt="' + oldPath + '"]').parent().next('div span').text(newName);
                  $('.fileinfo span[data-alt="' + oldPath + '"]').attr('data-alt', newPath);
                } else {
                  $('.fileinfo td[title="' + oldPath + '"]').text(newName);
                  $('.fileinfo td[title="' + oldPath + '"]').attr('title', newPath);
                }
                $('#preview h1').html(newName);

                // actualized data for binding
                data.Path = newPath;
                data.Filename = newName;

                // UnBind toolbar functions.
                $('.fileinfo').find('button.rename, button.delete, button.download').off();

                Alertify.success(lg.successful_rename);
              } else {
                Alertify.error(result.Error);
              }

              finalName = result['New Name'];
            });
        }
      };

    getNewName(data.NewFilename);
    return finalName;
  };

  /*
   * delete the folder or files by clicking the "Delete" button
   * in table(list) view
   */
  var deleteItem = function(data) {
    var isDeleted = false,
      lg = pgAdmin.FileUtils.lg;

    var doDelete = function(sel_data) {
      var post_data = {
        'mode': 'delete',
        'path': sel_data.Path,
      };

      $.ajax({
        type: 'POST',
        data: JSON.stringify(post_data),
        url: pgAdmin.FileUtils.fileConnector,
        dataType: 'json',
        contentType: 'application/json; charset=utf-8',
        async: false,
      })
        .done(function(resp) {
          var result = resp.data.result;
          if (result.Code === 1) {
            isDeleted = true;
            if (isDeleted) {
              Alertify.success(lg.successful_delete);
              var rootpath = result.Path.substring(0, result.Path.length - 1); // removing the last slash
              rootpath = rootpath.substr(0, rootpath.lastIndexOf('/') + 1);
              getFolderInfo(rootpath);
            }
          } else {
            isDeleted = false;
            Alertify.error(result.Error);
          }
        });
      return isDeleted;
    };

    doDelete(data);
    return isDeleted;
  };

  /*---------------------------------------------------------
    Functions to Retrieve File and Folder Details
  ---------------------------------------------------------*/
  /*
   * Retrieves information about the specified file as a JSON
   * object and uses that data to populate a template for
   * list views. Binds the toolbar for that file/folder to
   * enable specific actions. Called whenever an item is
   * clicked in list views.
   */
  var getFileInfo = function(file) {
    // Update location for status, upload, & new folder functions.
    pgAdmin.FileUtils.setUploader(file);
    var capabilities = pgAdmin.FileUtils.data.capabilities,
      is_file_valid = false,
      post_data = {
        'path': file,
        'mode': 'getinfo',
      };

    // Retrieve the data & populate the template.
    $.ajax({
      type: 'POST',
      data: JSON.stringify(post_data),
      url: pgAdmin.FileUtils.fileConnector,
      dataType: 'json',
      contentType: 'application/json; charset=utf-8',
      async: false,
    })
      .done(function(resp) {
        var data = resp.data.result;
        if (data.Code === 1) {
          $('.file_manager_ok').removeClass('disabled');
          $('.file_manager_ok').attr('disabled', false);
          data.Capabilities = capabilities;
          bindToolbar(data);
          if (data.FileType == 'Directory') {
          // Enable/Disable level up button
            enab_dis_level_up();
            $('.file_manager_ok').addClass('disabled');
            $('.file_manager_ok').attr('disabled', true);
            $('.file_manager button.delete, .file_manager button.rename').attr('disabled', 'disabled');
            $('.file_manager button.download').attr('disabled', 'disabled');

            if (file.charAt(file.length - 1) != '/' && file.charAt(file.length - 1) != '\\') {
              file += '/';
            }
            getFolderInfo(file);
          } else {
            is_file_valid = true;
          }
        } else {
          $('.file_manager_ok').addClass('disabled');
          $('.file_manager_ok').attr('disabled', true);
          Alertify.error(data.Error);
        }
      });
    return is_file_valid;
  };

  var checkPermission = function(path) {
    var permission = false,
      post_data = {
        'path': path,
        'mode': 'permission',
      };

    $.ajax({
      type: 'POST',
      data: JSON.stringify(post_data),
      url: pgAdmin.FileUtils.fileConnector,
      dataType: 'json',
      contentType: 'application/json; charset=utf-8',
      async: false,
    })
      .done(function(resp) {
        var data = resp.data.result;
        if (data.Code === 1) {
          permission = true;
        } else {
          $('.file_manager_ok').addClass('disabled');
          $('.file_manager_ok').attr('disabled', true);
          Alertify.error(data.Error);
        }
      })
      .fail(function() {
        $('.file_manager_ok').addClass('disabled');
        $('.file_manager_ok').attr('disabled', true);
        Alertify.error(
          gettext('Error occurred while checking access permission.')
        );
      });
    return permission;
  };

  var getNoDataView = function(data) {
    var lg = pgAdmin.FileUtils.lg;
    var cap_no_folders = ['upload', 'create'];
    data.Capabilities = cap_no_folders;
    bindToolbar(data);

    return `<div class="no_folder_found">${lg.could_not_retrieve_folder}</div>`;
  };

  var getGridView = function(data, capabilities) {
    let ret_ele = '<ul id="contents" class="grid">',
      no_data = _.isEmpty(data);

    if(!no_data) {
      ret_ele += Object.keys(data).sort(function keyOrder(x, y) {
        return pgAdmin.natural_sort(x.toLowerCase(), y.toLowerCase());
      }).map(function(key) {
        let item_data = data[key],
          props = item_data.Properties,
          filename = _.escape(item_data.Filename),
          icon_type = '',
          cap_classes = '';

        cap_classes = Object.keys(capabilities).map(function(cap) {
          if (has_capability(item_data, capabilities[cap])) {
            return 'cap_' + capabilities[cap];
          }
        }).join(' ');

        item_data.Capabilities = capabilities;
        bindToolbar(item_data);

        if (item_data.file_type == 'dir') {
          icon_type = 'fa fa-folder-open fm_folder_grid';
        } else if (item_data.file_type == 'drive') {
          icon_type = 'fa fa-hdd fm_drive';
        } else {
          icon_type = 'fa fa-file-alt fm_file_grid';
        }

        /* For the html ele */
        let item_ele =
          `<li class="${cap_classes}" tabindex="0">
            <div class="clip">
            <span data-alt="${_.escape(item_data.Path)}" class="${icon_type}"></span>`;

        if (item_data.Protected == 1) {
          item_ele += '<span class="fa fa-lock fm_lock_icon" data-protected="protected" role="img"></span>';
        }

        item_ele += '</div>';

        if (!has_capability(item_data, 'rename')) {
          item_ele += `<span>${filename}</span>`;
        } else {
          item_ele +=
            `<div>
              <input type="text" class="fm_file_rename" />
              <span class="less_text" title="${filename}">${filename}</span>
            </div>`;
        }
        if (props.Width && props.Width != '') {
          item_ele += `<span class="meta dimensions">${props.Width}x${props.Height}</span>`;
        }
        if (props.Size && props.Size != '') {
          item_ele += `<span class="meta size">${props.Size}</span>`;
        }
        if (props['Date Created'] && props['Date Created'] != '') {
          item_ele += `<span class="meta created">${props['Date Created']}</span>`;
        }
        if (props['Date Modified'] && props['Date Modified'] != '') {
          item_ele += `<span class="meta modified">${props['Date Modified']}</span>`;
        }
        item_ele += '</li>';

        return item_ele;
      }).join('\n');
    }

    ret_ele += '</ul>';

    if(no_data) {
      ret_ele += getNoDataView(data);
    }
    return ret_ele;
  };

  var getListView = function(data, capabilities) {
    let lg = pgAdmin.FileUtils.lg;
    let no_data = _.isEmpty(data);

    /* file_listing_table class makes height 100%, because of which No folder message is not displayed
     * file_listing_table_no_data will be removed when new folder is created
     */
    let ret_ele =
      `<table id="contents" class="table table-bordered table-noouter-border table-bottom-border table-right-border table-hover tablesorter file_listing_table ${no_data?'file_listing_table_no_data':''}">
        <thead>
          <tr>
            <th tabindex="0">
              <span>${lg.name}</span>
            </th>
            <th class="sorter-metric" data-metric-name-full="byte|Byte|BYTE" data-metric-name-abbr="b|B">
              <span>${lg.size}</span>
            </th>
            <th class="sorter-shortDate">
              <span>${lg.modified}</span>
            </th>
          </tr>
        </thead>
        <tbody>`;

    if(!no_data) {
      ret_ele += Object.keys(data).sort(function keyOrder(x, y) {
        return pgAdmin.natural_sort(x.toLowerCase(), y.toLowerCase());
      }).map(function(key) {
        let item_data = data[key],
          props = item_data.Properties,
          icon_type = '',
          class_type = '',
          cap_classes = '';

        cap_classes = Object.keys(capabilities).map(function(cap) {
          if (has_capability(item_data, capabilities[cap])) {
            return 'cap_' + capabilities[cap];
          }
        }).join(' ');

        item_data.Capabilities = capabilities;
        bindToolbar(item_data);

        if (item_data.file_type == 'dir') {
          class_type = 'tbl_folder';
          icon_type = 'fa fa-folder-open fm_folder_list';
        } else if (item_data.file_type == 'drive') {
          class_type = 'tbl_drive';
          icon_type = 'fa fa-hdd';
        } else {
          class_type = 'tbl_file';
          icon_type = 'fa fa-file-alt';
        }

        /* For the html ele */
        let item_ele =
          `<tr class="${cap_classes}" tabindex="0">
            <td title="${_.escape(item_data.Path)}" class="${class_type}">`;

        let data_protected = '';
        if (item_data.Protected == 1) {
          data_protected = '<i class="fa fa-lock tbl_lock_icon" data-protected="protected" role="img"></i>';
        }
        if (!has_capability(data[key], 'rename')) {
          item_ele +=
            `${data_protected};
            <span title="${item_data.Filename}">${_.escape(item_data.Filename)}</span>`;
        } else {
          item_ele +=
            `<div>
              <input aria-label="file_rename" type="text" class="fm_file_rename"/>
              <div class="fm_file_name">
                <div class="d-flex">
                  <span class="fm_file_list ${icon_type}"></span>
                  ${data_protected}
                  <span class="less_text ml-2" title="${item_data.Filename}">${_.escape(item_data.Filename)}</span>
                </div>
              <div>
            </div>`;
        }
        item_ele += '</td>';
        if (props.Size && props.Size != '') {
          item_ele += `<td><span class="less_text" title="${props.Size}">${props.Size}</span></td>`;
        } else {
          item_ele += '<td></td>';
        }

        if (props['Date Modified'] && props['Date Modified'] != '') {
          item_ele += `<td>${props['Date Modified']}</td>`;
        } else {
          item_ele += '<td></td>';
        }

        item_ele += '</tr>';

        return item_ele;
      }).join('\n');
    }

    ret_ele +=
      `</tbody>
      </table>`;

    if(no_data) {
      ret_ele += getNoDataView(data);
    }
    return ret_ele;
  };

  /*
   * Retrieves data for all items within the given folder and
   * creates a list view.
   */
  var getFolderInfo = function(path, file_type, user_input) {
    $('.storage_dialog #uploader .input-path').prop('disabled', true);
    if (!file_type) {
      file_type = '';
    }
    var capabilities = pgAdmin.FileUtils.data.Capabilities;
    // Update location for status, upload, & new folder functions.
    pgAdmin.FileUtils.setUploader(path);
    if(user_input) {
      $('.storage_dialog #uploader .input-path').val(path+user_input);
    }

    // set default selected file type
    if (file_type === '') {
      file_type = $('.change_file_types select').val();
    }

    // navigate to directory or path when clicked on breadcrumbs
    $('.file_manager a.breadcrumbs').off().on('click', function() {
      var curr_path = $(this).attr('data-path'),
        current_dir = $(this).html(),
        move_to = curr_path.substring(
          0, curr_path.lastIndexOf(current_dir)
        ) + current_dir;

      getFolderInfo(move_to);
      enab_dis_level_up();
    });

    // hide select file if we are listing drives in windows.
    if (pgAdmin.FileUtils.hideButtons()) {
      $('.allowed_file_types .change_file_types').hide();
    } else {
      $('.allowed_file_types .change_file_types').show();
    }

    var loading_icon_url = url_for(
      'static', {
        'filename': 'js/generated/load-root.gif',
      }
    );

    // Display an activity indicator.
    $('.fileinfo').find('span.activity').html(
      '<img src="' + loading_icon_url + '" alt="' + gettext('Loading...') + '/>'
    );

    var post_data = {
      'path': path,
      'mode': 'getfolder',
      'file_type': file_type || '*',
      'show_hidden': $('#show_hidden').prop('checked'),
    };

    $.ajax({
      type: 'POST',
      data: JSON.stringify(post_data),
      url: pgAdmin.FileUtils.fileConnector,
      dataType: 'json',
      contentType: 'application/json; charset=utf-8',
      async: false,
    })
      .done(function(resp) {
        $('.storage_dialog #uploader .input-path').prop('disabled', false);
        var result = '',
          data = resp.data.result;
        let isGridView = false;
        // hide activity indicator
        $('.fileinfo').find('span.activity').hide();
        if (data.Code === 0) {
          Alertify.error(data.Error);
          return;
        }

        var $this, orig_value, newvalue;

        // generate HTML for files/folder and render into container
        if ($('.fileinfo').data('view') == 'grid') {
          result += getGridView(data, capabilities);
          isGridView = true;
        } else {
          result += getListView(data, capabilities);
        }

        // Add the new markup to the DOM.
        $('.fileinfo .file_listing').html(result);

        let $listing_table = $('.fileinfo .file_listing .file_listing_table');

        $listing_table.tablesorter({
          widgets: [ 'resizable', 'stickyHeaders' ],
          widgetOptions : {
            stickyHeaders_attachTo:'.file_listing',
            stickyHeaders_offset: 0,
            resizable_widths: ['400px', '100px', '175px'],
          },
        });

        /* In order to fit our UI, some things need to be explicitly set
         * as tablesorter resizable is creating trouble.
         */
        $listing_table.on( 'resizableComplete', function() {
          let wo = this.config.widgetOptions;
          $.tablesorter.resizable.setWidth($listing_table.find('th[data-column="2"]'), wo.resizable_widths[2]);
        });

        /* Role of this function is to click or double click on element when user is doing keyboard navigation*/
        var clickOnFileFolderManually = function(event) {
          let self = this;
          event.preventDefault();
          event.stopPropagation();
          // if file/folder is protected do nothing
          if ($(this).find('.fa-lock').length)
            return;
          if ($(this).find('.fa-file-alt').length || $(this).find('.tbl_folder_rename').length > 0)
            $(this).click();
          // If folder then first select and then double click to open folder/drive
          else if ($(this).find('.fa-folder-open').length || $(this).find('.fa-hdd').length) {
            $(this).click();
            setTimeout(() => { $(self).trigger('dblclick'); }, 10);
          }
        };

        $listing_table.on( 'tablesorter-ready', function() {
          let wo = this.config.widgetOptions;
          if($.tablesorter.storage($listing_table[0], 'tablesorter-table-resized-width') === '') {
            $.tablesorter.resizable.setWidth($listing_table, $('.fileinfo .file_listing').width());
          }
          $.tablesorter.resizable.setWidth($listing_table.find('th[data-column="2"]'), wo.resizable_widths[2]);
          $listing_table.trigger('resizableUpdate');

          // Table Sorter writes table elements randomly so we need to handle some corner cases manually
          $('#show_hidden').off('keydown').on('keydown', function(event) {
            if (!isGridView && event.keyCode == 9 && event.shiftKey) {
              event.preventDefault();
              $listing_table.find('tbody tr:last').trigger('focus');
            }
          });

          $listing_table.find('tbody tr').off('keydown').on('keydown', function(event) {
            // If key is pressed then we need to trigger click so that it can select file
            if (event.keyCode == 13 || event.keyCode == 32) {
              clickOnFileFolderManually.call(this, event);
            } else if (event.keyCode == 9) {
              if (event.shiftKey) {
                // When first tr losses focus and shift + tab > we need to set focus on header
                if ($(this).prev().length == 0) {
                  event.preventDefault();
                  $listing_table.find('th.tablesorter-header:last').trigger('focus');
                }
              } else {
                // When last tr losses focus and Tab was pressed > we need to set focus on checkbox
                if ($(this).next().length == 0) {
                  event.preventDefault();
                  $('#show_hidden').trigger('focus');
                }
              }
            }
          });

          $listing_table.find('th.tablesorter-header').off('keydown').on('keydown', function(event) {
            // If key is pressed then we need to trigger click so that it can sort
            if (event.keyCode == 13 || event.keyCode == 32) {
              event.preventDefault();
              event.stopPropagation();
              $(this).trigger('click');
            }
          });
        });

        if(isGridView) {
          $('.file_manager').find('#contents li').off('keydown').on('keydown', function(event) {
            // If key is pressed then we need to trigger click so that it can sort
            if (event.keyCode == 13 || event.keyCode == 32) {
              clickOnFileFolderManually.call(this, event);
            }
          });
        }

        // rename file/folder
        $('.file_manager button.rename').off().on('click', function(e) {

          if ($('.fileinfo').data('view') == 'grid') {
            e.stopPropagation();
            $this = $('.file_manager').find('#contents li.selected div');
            orig_value = decodeURI($this.find('span.less_text').attr('title'));
            newvalue = orig_value.substring(0, orig_value.indexOf('.'));

            if (newvalue === '') {
              newvalue = decodeURI(orig_value);
            }

            $this.find('input').toggle().val(newvalue).trigger('focus');
            $this.find('span').toggle();

            // Rename folder/file on pressing enter key
            $('.file_manager').off().on('keyup', function(event) {
              if (event.keyCode == 13) {
                event.stopPropagation();
                $('.fileinfo #contents li.selected div').find(
                  'input'
                ).trigger('blur');
              }
            });
          } else if ($('.fileinfo').data('view') == 'list') {
            e.stopPropagation();
            $this = $('.fileinfo').find(
              'table#contents tbody tr.selected td.tbl_file'
            );
            if($this.length == 0) {
              $this = $('.fileinfo').find(
                'table#contents tbody tr.selected td.tbl_folder'
              );
              // putting temporary class to distiguish between folder rename & double click.
              $this.addClass('tbl_folder_rename');
            }
            orig_value = decodeURI($this.find('span.less_text').html());
            newvalue = orig_value.substring(0, orig_value.lastIndexOf('.'));

            if (orig_value.lastIndexOf('/') == orig_value.length - 1 || (_.isEmpty(newvalue) || _.isUndefined(newvalue) || _.isNull(newvalue))) {
              newvalue = decodeURI(orig_value);
            }

            $this.find('.fm_file_rename').toggle().val(newvalue).trigger('focus');
            $this.find('.fm_file_name').toggle();

            // Rename folder/file on pressing enter key
            $('.file_manager').off().on('keyup', function(event) {
              if (event.keyCode == 13) {
                event.stopPropagation();
                $this.find('fm_file_rename').trigger('blur');
              }
            });
          }
        });

        // Rename UI handling
        $('.fileinfo #contents li div').on('blur dblclick', 'input', function(e) {
          e.stopPropagation();

          var old_name = decodeURI($(this).siblings('div').find('.less_text').attr('title'));
          newvalue = old_name.substring(0, old_name.indexOf('.'));
          var last = getFileExtension(old_name),
            file_data, new_name, file_path, full_name;

          if (old_name.indexOf('.') == 0) {
            last = '';
          }

          if (newvalue == '') {
            newvalue = decodeURI(old_name);
          }

          if (e.type == 'keydown') {
            if (e.which == 13) {
              full_name = decodeURI($(this).val()) + (
                last !== '' ? '.' + last : ''
              );

              $(this).toggle();
              $(this).siblings('span').toggle().html(full_name);

              new_name = decodeURI($(this).val());
              file_path = decodeURI($(this).parent().parent().find(
                'span'
              ).attr('data-alt'));
              file_data = {
                'Filename': old_name,
                'Path': file_path,
                'NewFilename': new_name,
              };

              if (newvalue !== new_name) {
                renameItem(file_data);
                var parent = $('.currentpath').val();
                getFolderInfo(parent);
              }
              e.stopPropagation();
            }

            if (
              e.which == 38 || e.which == 40 || e.which == 37 ||
            e.which == 39 || e.keyCode == 32
            ) {
              e.stopPropagation();
            }
          } else if (e.type == 'focusout') {
            if ($(this).css('display') == 'inline-block' || $(this).css('display') == 'inline') {
              full_name = decodeURI(
                $(this).val()
              ) + (last !== '' ? '.' + last : '');

              if (newvalue !== new_name) {

                $(this).toggle();
                $(this).siblings('span').toggle().html(full_name);

                //check if user is trying to rename folder
                let isFolder = $(this).closest('.tbl_folder').length > 0;

                new_name = decodeURI($(this).val());
                file_path = decodeURI($(this).parent().parent().find(
                  'span'
                ).attr('data-alt'));
                file_data = {
                  'Filename': old_name,
                  'Path': file_path,
                  'NewFilename': new_name,
                  'isFolder': isFolder,
                };

                renameItem(file_data);
                let current_path = $('.currentpath').val();
                if(isFolder == true) {
                  // if its folder rename, remove the temporary added class
                  $(this).closest('.tbl_folder').removeClass('tbl_folder_rename');
                  if(current_path.includes('\\')) {
                    current_path = $('.currentpath').val().split('\\').slice(0, -2).join('\\')+'\\';
                  }
                  else {
                    current_path = $('.currentpath').val().split('/').slice(0, -2).join('/')+'/';
                  }
                }
                getFolderInfo(current_path);
              }
            }
          } else {
            e.stopPropagation();
          }
        });

        $('.fileinfo table#contents tr td div').on(
          'blur dblclick', 'input',
          function(e) {
            var old_name = decodeURI($(this).siblings('div').find('.less_text').attr('title')),
              new_value = old_name.substring(0, old_name.indexOf('.')),
              last = getFileExtension(old_name);
            if (old_name.indexOf('.') == 0) {
              last = '';
            }

            if (new_value == '') {
              new_value = old_name;
            }

            if (e.type == 'focusout') {
              if ($(this).css('display') == 'inline-block' || $(this).css('display') == 'inline') {
                var full_name = decodeURI($(this).val()) + (
                  last !== '' ? '.' + last : ''
                );

                if (new_value !== new_name) {

                  $(this).toggle();
                  $(this).siblings('span').toggle().html(full_name);

                  let isFolder = $(this).closest('.tbl_folder').length > 0;

                  var new_name = decodeURI($(this).val()),
                    file_path = decodeURI($(this).parent().parent().attr('title')),
                    file_data = {
                      'Filename': old_name,
                      'Path': file_path,
                      'NewFilename': new_name,
                      'isFolder': isFolder,
                    };

                  renameItem(file_data);
                  let current_path = $('.currentpath').val();
                  if(isFolder == true) {
                    // if its folder rename, remove the temporary added class
                    $(this).closest('.tbl_folder').removeClass('tbl_folder_rename');
                    if(current_path.includes('\\')) {
                      current_path = $('.currentpath').val().split('\\').slice(0, -2).join('\\')+'\\';
                    }
                    else {
                      current_path = $('.currentpath').val().split('/').slice(0, -2).join('/')+'/';
                    }
                  }
                  getFolderInfo(current_path);
                }
              }
            } else {
              e.stopPropagation();
            }
          });

        var data_cap = {};
        data_cap.Capabilities = capabilities;
        /*
       * Bind click events
       * Select items - afolder dblclick
       */
        if ($('.fileinfo').data('view') == 'grid') {
        // Get into folder on dblclick
          $('.fileinfo').find('#contents li').dblclick(function(e) {
            e.stopPropagation();
            // Enable/Disable level up button
            enab_dis_level_up();

            var file_path = decodeURI($(this).find('span').attr('data-alt'));

            if (file_path.lastIndexOf('/') == file_path.length - 1 || file_path.lastIndexOf('\\') == file_path.length - 1) {
              $('.file_manager_ok').addClass('disabled');
              $('.file_manager_ok').attr('disabled', true);
              $('.file_manager button.delete, .file_manager button.rename').attr('disabled', 'disabled');
              $('.file_manager button.download').attr('disabled', 'disabled');

              getFolderInfo(file_path);

            } else {
              var is_valid_file = getFileInfo(file_path);
              if (is_valid_file && check_file_capability(e, data_cap, 'grid')) {
                $('.file_manager_ok').trigger('click');
              }
            }
          });

          $('.fileinfo').find('#contents li').on('click', function(e) {
            e.stopPropagation();
            var file_path = decodeURI($(this).find('.clip span').attr('data-alt')),
              is_protected = $(this).find(
                '.clip span.fm_lock_icon'
              ).attr('data-protected');

            if (file_path.lastIndexOf('/') == file_path.length - 1 || file_path.lastIndexOf('\\') == file_path.length - 1) {
              if (
                has_capability(data_cap, 'select_folder') &&
              is_protected == undefined
              ) {
                $(this).parent().find('li.selected').removeClass('selected');
                $(this).addClass('selected');

                $('.file_manager_ok').removeClass('disabled');
                $('.file_manager_ok').attr('disabled', false);
                $('.file_manager button.delete, .file_manager button.rename').removeAttr(
                  'disabled', 'disabled'
                );
                $('.file_manager button.download').attr(
                  'disabled', 'disabled'
                );
                // set selected folder name in breadcrums
                $('.file_manager #uploader .input-path').hide();
                $('.file_manager #uploader .show_selected_file').remove();
                $('<span class="show_selected_file">' + file_path + '</span>').appendTo(
                  '.file_manager #uploader .filemanager-path-group'
                );
              }
              pgAdmin.FileUtils.setUploader(file_path);
            } else {
              if (
                has_capability(data_cap, 'select_file') &&
              is_protected == undefined
              ) {
                $(this).parent().find('li.selected').removeClass('selected');
                $(this).addClass('selected');
                $('.file_manager_ok').removeClass('disabled');
                $('.file_manager_ok').attr('disabled', false);
                $('.file_manager button.delete, .file_manager button.download, .file_manager button.rename').removeAttr(
                  'disabled'
                );
                // set selected folder name in breadcrums
                $('.file_manager #uploader .show_selected_file').remove();
              }

              getFileInfo(file_path);
            }
          });
        } else {
          $('.fileinfo table#contents tbody tr').on('click', function(e) {
            e.stopPropagation();
            var file_path = decodeURI($('td:first-child', this).attr('title')),
              is_protected = $('td:first-child', this).find(
                'i.tbl_lock_icon'
              ).attr('data-protected');

            if (file_path.lastIndexOf('/') == file_path.length - 1 || file_path.lastIndexOf('\\') == file_path.length - 1) {
              if (has_capability(data_cap, 'select_folder') && is_protected == undefined) {
                $(this).parent().find('tr.selected').removeClass('selected');
                $('td:first-child', this).parent().addClass('selected');
                $('.file_manager_ok').removeClass('disabled');
                $('.file_manager_ok').attr('disabled', false);
                $('.file_manager button.download').attr('disabled', 'disabled');
                $('.file_manager button.delete, .file_manager button.rename').removeAttr('disabled');

                // set selected folder name in breadcrums
                $('.file_manager #uploader .input-path').hide();
                $('.file_manager #uploader .show_selected_file').remove();
                $('<span class="show_selected_file">' + file_path + '</span>').appendTo(
                  '.file_manager #uploader .filemanager-path-group'
                );
              }
              pgAdmin.FileUtils.setUploader(file_path);
            } else {
              if (has_capability(data_cap, 'select_file') && is_protected == undefined) {
                $(this).parent().find('tr.selected').removeClass('selected');
                $('td:first-child', this).parent().addClass('selected');
                $('.file_manager button.delete, .file_manager button.download, .file_manager button.rename').removeAttr(
                  'disabled'
                );
                // set selected folder name in breadcrums
                $('.file_manager #uploader .show_selected_file').remove();
              }

              getFileInfo(file_path);
            }
          });

          $('.fileinfo table#contents tbody tr').on('dblclick', function(e) {
            e.stopPropagation();
            // Enable/Disable level up button
            enab_dis_level_up();
            var file_path = $('td:first-child', this).attr('title');

            if (file_path.lastIndexOf('/') == file_path.length - 1 || file_path.lastIndexOf('\\') == file_path.length - 1) {
              $('.file_manager_ok').addClass('disabled');
              $('.file_manager_ok').attr('disabled', true);
              $('.file_manager button.download').attr('disabled', 'disabled');
              $('.file_manager button.delete, .file_manager button.rename').attr('disabled', 'disabled');
              getFolderInfo(file_path);
            } else {
              var is_valid_file = getFileInfo(file_path);
              if (
                is_valid_file && check_file_capability(e, data_cap, 'table')
              ) {
                $('.file_manager_ok').trigger('click');
              }
            }
          });

        }
      //input_object.set_cap(data_cap);
      })
      .fail(function() {
        $('.storage_dialog #uploader .input-path').prop('disabled', false);
      });
  };
  var homedir='/';
  // Enable/Disable level up button
  var enab_dis_level_up = function() {
    $('.file_manager #uploader .input-path').show();
    $('.show_selected_file').remove();

    setTimeout(function() {
      var b = $('.currentpath').val(),
        $level_up = $('.file_manager').find('button.level-up'),
        $home_btn = $('.file_manager').find('button.home');

      (b === '/') ? $level_up.attr('disabled', 'disabled') : $level_up.removeAttr('disabled');
      (b === homedir) ? $home_btn.attr('disabled', 'disabled') : $home_btn.removeAttr('disabled');

    }, 100);
  };

  // Check if user can Select file
  var check_file_capability = function(event, data_cap, view_type) {
    var current_element = event.currentTarget,
      is_protected;

    if (view_type == 'grid') {
      is_protected = $(current_element).find(
        '.clip span.fm_lock_icon'
      ).attr('data-protected');
    } else {
      is_protected = $(current_element).find('td:first-child').find(
        'i.tbl_lock_icon'
      ).attr('data-protected');
    }

    return has_capability(data_cap, 'select_file') &&
      is_protected == undefined;
  };

  // Download selected file
  var download_file = function (path) {

    var data = { 'path': path, 'mode': 'download' },
      params = {};

    params[pgAdmin.csrf_token_header] = pgAdmin.csrf_token;

    $.ajax({
      type: 'POST',
      url: pgAdmin.FileUtils.fileConnector,
      contentType: false,
      headers: params,
      xhrFields: {
        responseType: 'blob',
      },
      cache: false,
      data: JSON.stringify(data),
      success: function (blob, status, xhr) {
        // check for a filename
        var filename = xhr.getResponseHeader('filename');

        if (typeof window.navigator.msSaveBlob !== 'undefined') {
          // IE workaround for "HTML7007: One or more blob URLs were revoked by closing the blob for which they were created. These URLs will no longer resolve as the data backing the URL has been freed."
          window.navigator.msSaveBlob(blob, filename);
        } else {
          var URL = window.URL || window.webkitURL;
          var downloadUrl = URL.createObjectURL(blob);

          if (filename) {
            // use HTML5 a[download] attribute to specify filename
            var a = document.createElement('a');
            // safari doesn't support this yet
            if (typeof a.download === 'undefined') {
              window.location.href = downloadUrl;
            } else {
              a.href = downloadUrl;
              a.download = filename;
              document.body.appendChild(a);
              a.click();
            }
          } else {
            window.location.href = downloadUrl;
          }

          setTimeout(function () { URL.revokeObjectURL(downloadUrl); }, 100); // cleanup
        }
      },
      error: function (error) {
        Alertify.error(error);
      },
    });
  };

  /*---------------------------------------------------------
    Initialization - Entry point
  ---------------------------------------------------------*/
  /*
   * get transaction id to generate request url and
   * to generate config files on runtime
   */
  pgAdmin.FileUtils = {
    init: function() {
      var fm_url = url_for('file_manager.get_trans_id'),
        transId = loadData(fm_url),
        t_res,
        t_id;

      if (transId.readyState == 4) {
        t_res = JSON.parse(transId.responseText);
      }
      t_id = _.isUndefined(t_res) ? 0 : t_res.data.fileTransId;
      var root_url = url_for('file_manager.index'),
        file_manager_config_json = root_url + t_id + '/file_manager_config.json',
        fileConnector = root_url + 'filemanager/' + t_id + '/',
        cfg = loadData(file_manager_config_json),
        config;

      this.fileConnector = fileConnector;
      this.transId = t_id;
      // load user configuration file
      if (cfg.readyState == 4) {
        this.config = config = JSON.parse(cfg.responseText);
        homedir=config.options.homedir;
      }

      if (_.isUndefined(config))
        return;

      // set main url to filemanager and its capabilites
      var fileRoot = config.options.fileRoot,
        capabilities = config.options.capabilities;

      /*
       * Get localized messages from file
       * through culture var or from URL
       */

      var lg = [],
        enjson = url_for('file_manager.index') + 'en.json',
        lgf = loadData(enjson);

      if (lgf.readyState == 4) {
        this.lg = lg = JSON.parse(lgf.responseText);
      }

      // create and enable user to create new file
      if (
        config.options.dialog_type == 'select_file' ||
        config.options.dialog_type == 'create_file' ||
        config.options.dialog_type == 'storage_dialog'
      ) {
        // Create file selection dropdown
        var allowed_types = config.options.allowed_file_types,
          types_len = allowed_types.length,
          select_box = '';

        if (types_len > 0) {
          var i = 0,
            t,
            have_all_types = false;

          let fileFormats = '';
          let response = getFileFormat(config.options.allowed_file_types);
          let lastSelectedFormat =  response.responseJSON.info;

          while (i < types_len) {
            t = allowed_types[i];
            if ((types_len == 1 || t != '*')) {
              if(t === lastSelectedFormat)
                fileFormats += '<option value=' + t + ' selected >' + t + '</option>';
              else
                fileFormats += '<option value=' + t + ' >' + t + '</option>';
              have_all_types = (have_all_types || (t == '*'));
            } else if ((lastSelectedFormat === '*')) {
              fileFormats += '<option value="' + t + '" selected >' +
                (t == '*' ? gettext('All Files') : t) + '</option>';
              have_all_types = (have_all_types || (t == '*'));
            }
            i++;
          }

          if (!have_all_types) {
            fileFormats += '<option value="*">' + gettext('All Files') + '</option>';
          }

          select_box = `<div class='change_file_types d-flex align-items-center p-1'>
          <div>` +
            gettext('Show hidden files and folders?') +
            `<input  aria-label="Show hidden files and folders" type='checkbox' id='show_hidden' onclick='pgAdmin.FileUtils.handleClick(this)' tabindex='0'>
          </div>
          <div class="ml-auto">
            <label class="my-auto">` + gettext('Format') + `</label>
            <select aria-label="select" name='type' tabindex='0'>${fileFormats}</select>
          <div>`;
        }

        $('.allowed_file_types').html(select_box);

        $('.allowed_file_types select').on('change', function() {
          var selected_val = $(this).val(),
            curr_path = $('.currentpath').val(),
            user_input_file = null,
            input_path = $('.storage_dialog #uploader .input-path').val();
          config.options.selectedFormat = selected_val;
          $.ajax({
            url: url_for('settings.save_file_format_setting'),
            type: 'POST',
            contentType: 'application/json',
            data: JSON.stringify(config.options),
          });
          if (curr_path.endsWith('/')) {
            user_input_file = input_path.substring(curr_path.lastIndexOf('/')+1);
          } else {
            user_input_file = input_path.substring(curr_path.lastIndexOf('\\')+1);
          }
          getFolderInfo(curr_path, selected_val, user_input_file);
        });

        // If user have preference to show hidden files
        if (config.options.show_hidden_files) {
          setTimeout(function() {
            $('#show_hidden').trigger('click');
          }, 10);
        }
        // handle show hidden files functionality
        this.handleClick = function(cb) {
          var tmp_data = {
            'is_checked': false,
          };

          if (cb.checked) {
            $('div.allowed_file_types select').trigger('change');
            tmp_data['is_checked'] = true;
          } else {
            // User wants to hide it again
            $('div.allowed_file_types select').trigger('change');
            tmp_data['is_checked'] = false;
          }
          // Save it in preference
          save_show_hidden_file_option(tmp_data['is_checked'], pgAdmin.FileUtils.transId);
          return;
        };
      }

      /*---------------------------------------------------------
        Item Actions - Object events
      ---------------------------------------------------------*/

      $('.file_manager').attr('data-platform', config.options.platform_type);

      // Switch to folder view
      $('.file_manager .fileinfo').on('click', function() {
        enable_disable_btn();
      });



      // Refresh current directory
      $('.file_manager .refresh').on('click', function() {
        enable_disable_btn();

        var curr_path = $('.currentpath').val(),
          path;

        $('.file_manager #uploader .input-path').val(curr_path);
        if (curr_path.endsWith('/')) {
          path = curr_path.substring(0, curr_path.lastIndexOf('/')) + '/';
        } else {
          path = curr_path.substring(0, curr_path.lastIndexOf('\\')) + '\\';
        }
        getFolderInfo(path);
      });

      // hide message prompt and dimmer if clicked no
      $('.delete_item button.btn_no').on('click', function() {
        $('.delete_item, .fileinfo .fm_dimmer').hide();
      });

      // Disable button on load
      $('.file_manager').find('button.rename').attr('disabled', 'disabled');

      // stop click event on dimmer click
      $('.fileinfo .fm_dimmer').on('click', function(e) {
        e.stopPropagation();
      });

      $('.fileinfo .replace_file').not(
        $(this).find('span.pull-right')
      ).on(
        'click',
        function(e) {
          $('#uploader .filemanager-btn-group').off().on(
            'click',
            function() {
              $('.fileinfo .delete_item, .fileinfo .replace_file, .fileinfo .fm_dimmer').hide();
            });
          e.stopPropagation();
        });

      // Set initial view state.
      $('.fileinfo').data('view', config.options.defaultViewMode);
      setViewButtonsFor(config.options.defaultViewMode);

      // Upload click event
      $('.file_manager .uploader').on('click', 'a', function(e) {
        e.preventDefault();
        var b = $('.currentpath').val(),
          node_val = $(this).next().text(),
          parent = b.substring(0, b.slice(0, -1).lastIndexOf(node_val));
        getFolderInfo(parent);
      });

      // re-render the home view
      $('.file_manager .home').on('click', function() {
        var currentViewMode = $('.fileinfo').data('view');
        $('.fileinfo').data('view', currentViewMode);
        getFolderInfo(homedir);
        enab_dis_level_up();
      });

      // Go one directory back
      $('.file_manager .level-up').on('click', function() {
        var b = $('.currentpath').val();
        // Enable/Disable level up button
        enab_dis_level_up();

        if (b.endsWith('\\') || b.endsWith('/')) {
          b = b.substring(0, b.length - 1);
        }

        if (b != '/') {
          var parent;
          if (b.lastIndexOf('/') > b.lastIndexOf('\\')) {
            parent = b.substring(0, b.slice(0, -1).lastIndexOf('/')) + '/';
          } else {
            parent = b.substring(0, b.slice(0, -1).lastIndexOf('\\')) + '\\';
          }

          var d = $('.fileinfo').data('view');
          $('.fileinfo').data('view', d);
          getFolderInfo(parent);
        }
      });

      // set buttons to switch between grid and list views.
      $('.file_manager .grid').on('click',() => {
        setViewButtonsFor('grid');
        $('.fileinfo').data('view', 'grid');
        enable_disable_btn();
        getFolderInfo($('.currentpath').val());
        save_file_dialog_view('grid', pgAdmin.FileUtils.transId);
      });

      // Show list mode
      $('.file_manager .list').on('click',() => {
        setViewButtonsFor('list');
        $('.fileinfo').data('view', 'list');
        enable_disable_btn();
        getFolderInfo($('.currentpath').val());
        save_file_dialog_view('list', pgAdmin.FileUtils.transId);
      });

      // Provide initial values for upload form, status, etc.
      pgAdmin.FileUtils.setUploader(fileRoot);

      var data;
      this.data = data = {
        'Capabilities': capabilities,
      };

      function InputObject() {
        this.init = function(cap) {
          var self = this,
            check_obj = function(path, check) {

              path = decodeURI(path);
              if (path.lastIndexOf('/') == path.length - 1 || path.lastIndexOf('\\') == path.length - 1) {
                if (
                  has_capability(self.data_cap, 'select_folder')
                ) {
                  $('.file_manager_ok').removeClass('disabled');
                  $('.file_manager_ok').attr('disabled', false);
                  $('.file_manager button.delete').removeAttr(
                    'disabled', 'disabled'
                  );
                  $('.file_manager button.download').attr(
                    'disabled', 'disabled'
                  );
                  $('.file_manager button.rename').attr('disabled', 'disabled');
                  // set selected folder name in breadcrums
                  $('.file_manager #uploader .input-path').hide();
                  $('.file_manager #uploader .show_selected_file').remove();
                  $('<span class="show_selected_file">' + path + '</span>').appendTo(
                    '.file_manager #uploader .filemanager-path-group'
                  );
                } else {
                  $('.file_manager_ok').addClass('disabled');
                  $('.file_manager_ok').attr('disabled', true);
                  if (check) {
                    // Enable/Disable level up button
                    enab_dis_level_up();

                    $('.file_manager button.delete, .file_manager button.rename').attr('disabled', 'disabled');
                    $('.file_manager button.download').attr('disabled', 'disabled');
                    getFolderInfo(path);
                  }
                }
              } else {
                if (
                  has_capability(self.data_cap, 'select_file')
                ) {
                  $('.file_manager_ok').removeClass('disabled');
                  $('.file_manager_ok').attr('disabled', false);
                  $('.file_manager button.delete, .file_manager button.download, .file_manager button.rename').removeAttr(
                    'disabled'
                  );
                  // set selected folder name in breadcrumbs
                  $('.file_manager #uploader .show_selected_file').remove();
                }

                if (check) {
                  if (config.options.dialog_type == 'create_file') {
                    var status = checkPermission(path);
                    if (status) {
                      //$('.file_manager').trigger('enter-key');
                      $('.file_manager_ok').trigger('click');
                    }
                  } else if (config.options.dialog_type == 'select_file') {
                    var file_status = getFileInfo(path);
                    if (file_status) {
                      $('.file_manager_ok').trigger('click');
                      //$('.file_manager').trigger('enter-key');
                    }
                  }
                }
              }
            };

          self.data_cap = cap;

          $('.storage_dialog #uploader .input-path').on('keyup',function(e) {
            if (e.keyCode == 13) {
              e.stopPropagation();
              var path = $(this).val();
              if (path == '') {
                path = '/';
              }

              if (config.options.platform_type === 'win32') {
                path = path.replace(/\//g, '\\');
              } else {
                path = path.replace(/\\/g, '/');
                if (!path.startsWith('/')) {
                  path = '/' + path;
                }
              }

              $(this).val(path);
              setTimeout(function() {
                check_obj(path, true);
              });

              return;
            }
            check_obj($(this).val(), false);
          });
        };
        this.set_cap = function(cap) {
          this.data_cap = cap;
        };
      }
      var input_object = new InputObject();
      input_object.init(data);

      // Upload file
      if (has_capability(data, 'upload')) {
        Dropzone.autoDiscover = false;
        // we remove simple file upload element
        $('.file-input-container').remove();
        $('.upload').remove();
        $('.create').before('<button aria-label="Upload" value="Upload" type="button" title="Upload File" name="upload" id="upload" class="btn btn-sm btn-primary-icon upload" tabindex="0"><span class="fa fa-upload sql-icon-lg"></span></button> ');

        $('#uploader .upload').off().on('click', function() {
          // we create prompt
          var msg = '<div id="dropzone-container" class="d-flex flex-column flex-grow-1">' +
            '<button class="fa fa-times fa-lg dz_cross_btn ml-auto" tabindex="0"></button>' +
            '<div id="multiple-uploads" class="dropzone flex-grow-1 d-flex p-1">'+
            '<div class="dz-default dz-message d-none"></div>'+
            '</div>' +
            '<div class="prompt-info">' + gettext('Drop files here to upload.') + ' ' + lg.file_size_limit +
            config.upload.fileSizeLimit + ' ' + lg.mb + '.</div>',
            path = $('.currentpath').val(),
            filesizelimit = config.upload.fileSizeLimit,
            // default dropzone value
            fileSize = (filesizelimit != 'auto') ? filesizelimit : 256,
            acceptFiles;

          if (config.security.uploadPolicy == 'DISALLOW_ALL') {
            acceptFiles = '.' + config.security.uploadRestrictions.join(',.');
          } else {
            // We allow any extension since we have no easy way to handle the the
            // built-in `acceptedFiles` params would be handled later by the
            // connector.
            acceptFiles = null;
          }

          $('.file_manager .upload_file').toggleClass('d-none');
          $('.file_manager .file_listing').toggleClass('d-none');
          $('.file_manager .upload_file').html(msg);

          var previewTemplate = '<div class="file_upload_main dz-preview dz-file-preview">' +
            '<div class="show_error">' +
            '<p class="size dz-size" data-dz-size></p>' +
            '<p class="name dz-filename" data-dz-name></p>' +
            '</div>' +
            '<div class="dz-progress"><span class="dz-upload" data-dz-uploadprogress></span></div>' +
            '<div class="dz-success-mark"><span></span></div>' +
            '<div class="dz-error-mark"><span></span></div>' +
            '<div class="dz-error-message"><span data-dz-errormessage></span></div>' +
            '<a href="javascript:void(0);" class="fa fa-trash dz_file_remove" data-dz-remove></a>' +
            '</div>';

          // We need to append our csrf token with dropzone's ajax request header
          let csrfToken = {};
          csrfToken[pgAdmin.csrf_token_header] = pgAdmin.csrf_token;

          $('div#multiple-uploads').dropzone({
            paramName: 'newfile',
            url: pgAdmin.FileUtils.fileConnector,
            headers: csrfToken,
            maxFilesize: fileSize,
            maxFiles: config.upload.number,
            addRemoveLinks: true,
            previewTemplate: previewTemplate,
            parallelUploads: config.upload.number,
            dictMaxFilesExceeded: lg.dz_dictMaxFilesExceeded.replace(
              '%s', config.upload.number
            ),
            dictDefaultMessage: lg.dz_dictDefaultMessage,
            dictInvalidFileType: lg.dz_dictInvalidFileType,
            dictFileTooBig: lg.file_too_big + ' ' + lg.file_size_limit +
              config.upload.fileSizeLimit + ' ' + lg.mb,
            acceptedFiles: acceptFiles,
            autoProcessQueue: true,
            init: function() {
              $('.dz_cross_btn').off().on('click', function() {
                $('.file_manager .upload_file').toggleClass('d-none');
                $('.file_manager .file_listing').toggleClass('d-none');
              });
            },
            sending: function(file, xhr, formData) {
              formData.append('mode', 'add');
              formData.append('currentpath', path);
              $('.upload_file .dz_cross_btn').attr('disabled', 'disabled');
              setTimeout(function() {}, 10000);
            },
            success: function(file, response) {
              var resp_data = response.data.result,
                $this = $(file.previewTemplate);

              if (resp_data.Code == 1) {
                setTimeout(function() {
                  $this.find('.dz-upload').addClass('success');
                }, 1000);
                $this.find('.dz-upload').css('width', '100%').html('100%');
                Alertify.success(lg.upload_success);
              } else {
                $this.find('.dz-upload').addClass('error');
                $this.find('.dz-upload').css('width', '0%').html('0%');
                Alertify.error(resp_data.Error);
              }
              getFolderInfo(path);
            },
            totaluploadprogress: function() {},
            complete: function(file) {
              if (file.status == 'error') {
                Alertify.error(lg.upload_error);
              }
              $('.upload_file .dz_cross_btn').removeAttr('disabled');
              getFolderInfo(path);
            },
          });
        });
      }

      this.getDetailView(fileRoot);
    },
    /*
     * Sets the folder status, upload, and new folder functions
     * to the path specified. Called on initial page load and
     * whenever a new directory is selected.
     */
    setUploader: function(path) {
      var config = this.config;
      var lg = this.lg;
      $('.storage_dialog #uploader').find('a').remove();
      $('.storage_dialog #uploader').find('b').remove();

      if (config.options.platform_type === 'win32') {
        path = path.replace(/\//g, '\\');
      } else {
        path = path.replace(/\\/g, '/');
      }

      path = decodeURI(path);
      if (config.options.platform_type === 'win32') {
        if (config.options.show_volumes && path == '\\') {
          $('.storage_dialog #uploader .input-path').val('');
        } else {
          $('.storage_dialog #uploader .input-path').val(path);
        }
      } else if ((config.options.platform_type !== 'win32') &&
        (path == '' || !path.startsWith('/'))) {
        path = '/' + path;
        $('.storage_dialog #uploader .input-path').val(path);
      } else {
        $('.storage_dialog #uploader .input-path').val(path);
      }

      if (path.lastIndexOf('\\') == -1 && path.lastIndexOf('/') == -1) {
        $('.currentpath').val(path);
      } else if (path.lastIndexOf('/') > path.lastIndexOf('\\')) {
        $('.currentpath').val(path.substr(0, path.lastIndexOf('/') + 1));
      } else {
        $('.currentpath').val(path.substr(0, path.lastIndexOf('\\') + 1));
      }

      enab_dis_level_up();
      if ($('.storage_dialog #uploader h1 span').length === 0) {
        $('<span>' + lg.current_folder + '</span>').appendTo($('.storage_dialog #uploader h1'));
      }

      $('.storage_dialog #uploader .input-path').attr('title', path);
      $('.storage_dialog #uploader .input-path').attr('data-path', path);

      // create new folder
      $('.create').off().on('click', function() {
        var foldername = lg.new_folder;
        var $file_element,
          $file_element_list,
          folder_div;


        $('.file_manager button.create').attr('disabled', 'disabled');
        $('.no_folder_found').addClass('d-none');
        if ($('.fileinfo').data('view') == 'grid') {

          // template for creating new folder
          folder_div =
            '<li tabIndex="0" class=\'cap_download cap_delete cap_select_file cap_select_folder cap_rename cap_create cap_upload\'>' +
            '<div class=\'clip\'><span data-alt=\'\' class=\'fa fa-folder-open fm_folder_grid\' role="img"></span></div>' +
            '<div><input type=\'text\' class=\'fm_file_rename\'><span class="less_text" title=\'\'>New_Folder</span></div>' +
            '<span class=\'meta size\'></span><span class=\'meta created\'></span><span class=\'meta modified\'></span></li>';

          path = $('.currentpath').val();
          $file_element = $(folder_div);
          $('.fileinfo #contents.grid').prepend($file_element);
          $file_element.find('div span.less_text').toggle();
          $file_element.find('div input').toggle().val(lg.new_folder).select();

          // rename folder/file on pressing enter key
          $('.file_manager').on('keyup', function(e) {
            if (e.keyCode == 13) {
              e.stopPropagation();
              $file_element.find('div input').trigger('blur');
            }
          });

          // rename folder/file on blur
          $file_element.find('div input').on('blur', function() {
            $('.file_manager button.create').removeAttr('disabled');
            var text_value = $file_element.find('div input').val();

            path = $('.currentpath').val();

            $file_element.find('div input').toggle();
            $file_element.find('div span.less_text').toggle().html(text_value);
            if (text_value === undefined) {
              text_value = lg.new_folder;
            }
            getFolderName(text_value);
            getFolderInfo(path);
          });

        } else if ($('.fileinfo').data('view') == 'list') {
          // template to create new folder in table view
          folder_div = $(
            `<tr class=\'cap_download cap_delete cap_select_file cap_select_folder cap_rename cap_create cap_upload\'>
              <td title=\'\' class=\' tbl_folder\'>
                <div>
                  <input type="text" class="fm_file_rename"/>
                  <div class="fm_file_name">
                    <div class="d-flex">
                      <span class="fa fa-folder-open fm_folder_list" role="img"></span>
                      <span class="less_text ml-2">${lg.new_folder}</span>
                    </div>
                  <div>
                </div>
              </td>
              <td><span title=\'\'></span></td>
              <td></td>
            </tr>`
          );

          $file_element_list = $(folder_div);
          let tableEl = $('.fileinfo #contents.file_listing_table');
          tableEl.removeClass('file_listing_table_no_data');
          tableEl.find('tbody').prepend($file_element_list);

          $file_element_list.find('td .fm_file_name').toggle();
          $file_element_list.find('td input').toggle().val(lg.new_folder).select();

          // rename folder/file on pressing enter key
          $('.file_manager').on('keyup', function(e) {
            if (e.keyCode == 13) {
              e.stopPropagation();
              $file_element_list.find('td input').trigger('blur');
            }
          });

          // rename folder/file on blur
          $file_element_list.find('td input').on('blur', function() {
            $('.file_manager button.create').removeAttr('disabled');
            var text_value = $file_element_list.find('td input').val();
            path = $('.currentpath').val();
            $file_element_list.find('td input').toggle();
            $file_element_list.find('td .fm_file_name span.less_text').html(text_value);
            $file_element_list.find('td .fm_file_name').toggle();
            if (text_value === undefined) {
              text_value = lg.new_folder;
            }
            getFolderName(text_value);
            getFolderInfo(path);
          });
        }

        // create a new folder
        var getFolderName = function(value) {
          var fname = value;

          if (fname != '') {
            foldername = fname;
            // Add _ variable in URL for avoiding the caching
            $.getJSON(
              pgAdmin.FileUtils.fileConnector + '?_=' + Date.now() + '&mode=addfolder&path=' + $('.currentpath').val() + '&name=' + foldername,
              function(resp) {
                var result = resp.data.result;
                if (result.Code === 1) {
                  Alertify.success(lg.successful_added_folder);
                  getFolderInfo(result.Parent);
                } else {
                  Alertify.error(result.Error);
                }
              }
            );
          } else {
            Alertify.error(lg.no_foldername);
          }
        };

      });
    },
    /* Decides whether to retrieve file or folder info based on
     * the path provided.
     */
    getDetailView: function(path) {
      if (path.lastIndexOf('/') == path.length - 1 || path.lastIndexOf('\\') == path.length - 1) {
        var allowed_types = this.config.options.allowed_file_types;

        let set_type;

        let response = getFileFormat(this.config.options.allowed_file_types);
        let lastSelectedFormat =  response.responseJSON.info;
        if (_.isUndefined(lastSelectedFormat))
          set_type = allowed_types[0];
        else
          set_type = lastSelectedFormat;
        getFolderInfo(path, set_type);
      }
    },
    // helpful in show/hide toolbar button for Windows
    hideButtons: function() {
      return (
        this.config.options.platform_type === 'win32' &&
        $('.currentpath').val() === ''
      );
    },

  };
  return pgAdmin.FileUtils;
});
//@ sourceURL=utility.js