solid-ui/lib/folders.js

UI library for writing Solid read-write-web applications

"use strict";

/**      UI To Delete Folder and content
*
*/

/* global confirm */
var UI = {
  icons: require('./iconBase'),
  log: require('./log'),
  ns: require('./ns'),
  pad: require('./'),
  rdf: require('rdflib'),
  store: require('./store'),
  widgets: require('./widgets'),
  utils: require('./utils')
};
var ns = UI.ns;

function deleteRecursive(kb, folder) {
  return new Promise(function (resolve, reject) {
    kb.fetcher.load(folder).then(function () {
      var promises = kb.each(folder, ns.ldp('contains')).map(function (file) {
        if (kb.holds(file, ns.rdf('type'), ns.ldp('BasicContainer'))) {
          return deleteRecursive(kb, file);
        } else {
          console.log('deleteRecirsive file: ' + file);

          if (!confirm(' Really DELETE File ' + file)) {
            throw new Error('User aborted delete file');
          }

          return kb.fetcher.webOperation('DELETE', file.uri);
        }
      });
      console.log('deleteRecirsive folder: ' + folder);

      if (!confirm(' Really DELETE folder ' + folder)) {
        throw new Error('User aborted delete file');
      }

      promises.push(kb.fetcher.webOperation('DELETE', folder.uri));
      Promise.all(promises).then(function (res) {
        resolve();
      });
    });
  });
}
/** Iterate over files depth first
 *
 * @param folder - The folder whose contents we iterate over
 * @param store - The quadstore
 * @param action - returns a promise.  All the promises must be resolved
 */


function forAllFiles(folder, kb, action) {
  return new Promise(function (resolve, reject) {
    kb.fetcher.load(folder).then(function () {
      var promises = kb.each(folder, ns.ldp('contains')).map(function (file) {
        if (kb.holds(file, ns.rdf('type'), ns.ldp('BasicContainer'))) {
          return forAllFiles(file, kb, action);
        } else {
          return action(file);
        }
      });
      promises.push(action(folder));
      Promise.all(promises).then(function (res) {
        resolve();
      });
    });
  });
}

module.exports.deleteRecursive = deleteRecursive;
/** Delete Folder and contents
*
 * @param {NamedNode} folder - The LDP container to be deleted
 * @param {DOMElement} containingElement - Where to put the user interface
 * @param {IndexedForumula} store - Quadstore (optional)
 * @param {Document} dom - The browser 'document' gloabl or equivalent (or iuse global)
 * @returns {DOMElement} - The control which has eben inserted in the
*/

/* global document */

module.exports.deleteFolder = function (folder, store, dom) {
  store = store || UI.store;

  if (typeof docuent !== 'undefined') {
    dom = dom || document;
  }

  var div = dom.createElement('div');
  var table = div.appendChild(dom.createElement('table'));
  var mainTR = table.appendChild(dom.createElement('tr'));
  mainTR.appendChild(dom.createElement('td')); // mainTD

  var p = mainTR.appendChild(dom.createElement('p'));
  p.textContent = "Are you sure you want to delete the folder ".concat(folder, "? This cannot be undone.");
  var buttonsTR = table.appendChild(dom.createElement('tr'));
  var buttonsTD1 = buttonsTR.appendChild(dom.createElement('td'));
  buttonsTR.appendChild(dom.createElement('td')); // buttonsTD2

  var buttonsTD3 = buttonsTR.appendChild(dom.createElement('td'));
  var cancel = buttonsTD1.appendChild(UI.widgets.cancelButton(dom));
  cancel.addEventListener('click', function (e) {
    div.parentNode.removeChild(div);
  }, false);
  var doit = buttonsTD3.appendChild(UI.widgets.button(UI.icons.iconBase + 'noun_925021.svg', 'Yes, delete'));
  doit.addEventListener('click', function (e) {
    deleteThem(folder).then(function () {
      console.log('All deleted.');
    });
  }, false);

  function deleteThem(folder) {
    return forAllFiles(folder, function (file) {
      return store.fetcher.webOperation('DELETE', file.uri);
    });
  }

  var count = 0;
  forAllFiles(folder, store, function () {
    count += 1;
  }) // Count files
  .then(function () {
    var msg = ' Files to delete: ' + count;
    console.log(msg);
    p.textContent += msg;
  });
  return div;
};
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