X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=assets%2Fdefault%2Fjs%2Fbase.js;h=3168881514595071111672d52959baa1976713aa;hb=4cf3564d28dc8e4d08a3e64f09ad045ffbde97ae;hp=cf628e87fc4f15e0b9d1c71a42b5e14994e613f1;hpb=b3375c7f86f35fce723185bb76d3b5f9c4ff7a07;p=github%2Fshaarli%2FShaarli.git

diff --git a/assets/default/js/base.js b/assets/default/js/base.js
index cf628e87..31688815 100644
--- a/assets/default/js/base.js
+++ b/assets/default/js/base.js
@@ -1,664 +1,637 @@
-/** @licstart  The following is the entire license notice for the
- *  JavaScript code in this page.
- *
- *   Copyright: (c) 2011-2015 Sébastien SAUVAGE <sebsauvage@sebsauvage.net>
- *              (c) 2011-2017 The Shaarli Community, see AUTHORS
- *
- *   This software is provided 'as-is', without any express or implied warranty.
- *   In no event will the authors be held liable for any damages arising from
- *   the use of this software.
- *
- *   Permission is granted to anyone to use this software for any purpose,
- *   including commercial applications, and to alter it and redistribute it
- *   freely, subject to the following restrictions:
- *
- *   1. The origin of this software must not be misrepresented; you must not
- *   claim that you wrote the original software. If you use this software
- *   in a product, an acknowledgment in the product documentation would
- *   be appreciated but is not required.
- *
- *   2. Altered source versions must be plainly marked as such, and must
- *   not be misrepresented as being the original software.
+import Awesomplete from 'awesomplete';
+import he from 'he';
+
+/**
+ * Find a parent element according to its tag and its attributes
  *
- *   3. This notice may not be removed or altered from any source distribution.
+ * @param element    Element where to start the search
+ * @param tagName    Expected parent tag name
+ * @param attributes Associative array of expected attributes (name=>value).
  *
- *  @licend  The above is the entire license notice
- *  for the JavaScript code in this page.
+ * @returns Found element or null.
  */
-
-window.onload = function () {
-
-    /**
-     * Retrieve an element up in the tree from its class name.
-     */
-    function getParentByClass(el, className) {
-        var p = el.parentNode;
-        if (p == null || p.classList.contains(className)) {
-            return p;
-        }
-        return getParentByClass(p, className);
+function findParent(element, tagName, attributes) {
+  const parentMatch = (key) => attributes[key] !== '' && element.getAttribute(key).indexOf(attributes[key]) !== -1;
+  while (element) {
+    if (element.tagName.toLowerCase() === tagName) {
+      if (Object.keys(attributes).find(parentMatch)) {
+        return element;
+      }
     }
+    element = element.parentElement;
+  }
+  return null;
+}
 
-
-    /**
-     * Handle responsive menu.
-     * Source: http://purecss.io/layouts/tucked-menu-vertical/
-     */
-    (function (window, document) {
-        var menu = document.getElementById('shaarli-menu'),
-            WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange':'resize';
-
-        function toggleHorizontal() {
-            [].forEach.call(
-                document.getElementById('shaarli-menu').querySelectorAll('.menu-transform'),
-                function(el){
-                    el.classList.toggle('pure-menu-horizontal');
-                }
-            );
-        };
-
-        function toggleMenu() {
-            // set timeout so that the panel has a chance to roll up
-            // before the menu switches states
-            if (menu.classList.contains('open')) {
-                setTimeout(toggleHorizontal, 500);
-            }
-            else {
-                toggleHorizontal();
-            }
-            menu.classList.toggle('open');
-            document.getElementById('menu-toggle').classList.toggle('x');
-        };
-
-        function closeMenu() {
-            if (menu.classList.contains('open')) {
-                toggleMenu();
-            }
-        }
-
-        var menuToggle = document.getElementById('menu-toggle');
-        if (menuToggle != null) {
-            menuToggle.addEventListener('click', function (e) {
-                toggleMenu();
-            });
-        }
-
-        window.addEventListener(WINDOW_CHANGE_EVENT, closeMenu);
-    })(this, this.document);
-
-    /**
-     * Fold/Expand shaares description and thumbnail.
-     */
-    var foldAllButtons = document.getElementsByClassName('fold-all');
-    var foldButtons = document.getElementsByClassName('fold-button');
-
-    [].forEach.call(foldButtons, function (foldButton) {
-        // Retrieve description
-        var description = null;
-        var thumbnail = null;
-        var linklistItem = getParentByClass(foldButton, 'linklist-item');
-        if (linklistItem != null) {
-            description = linklistItem.querySelector('.linklist-item-description');
-            thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
-            if (description != null || thumbnail != null) {
-                foldButton.style.display = 'inline';
-            }
-        }
-
-        foldButton.addEventListener('click', function (event) {
-            event.preventDefault();
-            toggleFold(event.target, description, thumbnail);
-        });
+/**
+ * Ajax request to refresh the CSRF token.
+ */
+function refreshToken(basePath, callback) {
+  const xhr = new XMLHttpRequest();
+  xhr.open('GET', `${basePath}/admin/token`);
+  xhr.onload = () => {
+    const elements = document.querySelectorAll('input[name="token"]');
+    [...elements].forEach((element) => {
+      element.setAttribute('value', xhr.responseText);
     });
 
-    if (foldAllButtons != null) {
-        [].forEach.call(foldAllButtons, function (foldAllButton) {
-            foldAllButton.addEventListener('click', function (event) {
-                event.preventDefault();
-                var state = foldAllButton.firstElementChild.getAttribute('class').indexOf('down') != -1 ? 'down' : 'up';
-                [].forEach.call(foldButtons, function (foldButton) {
-                    if (foldButton.firstElementChild.classList.contains('fa-chevron-up') && state == 'down'
-                        || foldButton.firstElementChild.classList.contains('fa-chevron-down') && state == 'up'
-                    ) {
-                        return;
-                    }
-                    // Retrieve description
-                    var description = null;
-                    var thumbnail = null;
-                    var linklistItem = getParentByClass(foldButton, 'linklist-item');
-                    if (linklistItem != null) {
-                        description = linklistItem.querySelector('.linklist-item-description');
-                        thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
-                        if (description != null || thumbnail != null) {
-                            foldButton.style.display = 'inline';
-                        }
-                    }
-
-                    toggleFold(foldButton.firstElementChild, description, thumbnail);
-                });
-                foldAllButton.firstElementChild.classList.toggle('fa-chevron-down');
-                foldAllButton.firstElementChild.classList.toggle('fa-chevron-up');
-                foldAllButton.title = state === 'down'
-                    ? document.getElementById('translation-fold-all').innerHTML
-                    : document.getElementById('translation-expand-all').innerHTML
-            });
-        });
+    if (callback) {
+      callback(xhr.response);
     }
+  };
+  xhr.send();
+}
 
-    function toggleFold(button, description, thumb)
-    {
-        // Switch fold/expand - up = fold
-        if (button.classList.contains('fa-chevron-up')) {
-            button.title = document.getElementById('translation-expand').innerHTML;
-            if (description != null) {
-                description.style.display = 'none';
-            }
-            if (thumb != null) {
-                thumb.style.display = 'none';
-            }
-        }
-        else {
-            button.title = document.getElementById('translation-fold').innerHTML;
-            if (description != null) {
-                description.style.display = 'block';
-            }
-            if (thumb != null) {
-                thumb.style.display = 'block';
-            }
-        }
-        button.classList.toggle('fa-chevron-down');
-        button.classList.toggle('fa-chevron-up');
+function createAwesompleteInstance(element, tags = []) {
+  const awesome = new Awesomplete(Awesomplete.$(element));
+  // Tags are separated by a space
+  awesome.filter = (text, input) => Awesomplete.FILTER_CONTAINS(text, input.match(/[^ ]*$/)[0]);
+  // Insert new selected tag in the input
+  awesome.replace = (text) => {
+    const before = awesome.input.value.match(/^.+ \s*|/)[0];
+    awesome.input.value = `${before}${text} `;
+  };
+  // Highlight found items
+  awesome.item = (text, input) => Awesomplete.ITEM(text, input.match(/[^ ]*$/)[0]);
+  // Don't display already selected items
+  const reg = /(\w+) /g;
+  let match;
+  awesome.data = (item, input) => {
+    while ((match = reg.exec(input))) {
+      if (item === match[1]) {
+        return '';
+      }
     }
+    return item;
+  };
+  awesome.minChars = 1;
+  if (tags.length) {
+    awesome.list = tags;
+  }
+
+  return awesome;
+}
 
-    /**
-     * Confirmation message before deletion.
-     */
-    var deleteLinks = document.querySelectorAll('.confirm-delete');
-    [].forEach.call(deleteLinks, function(deleteLink) {
-        deleteLink.addEventListener('click', function(event) {
-            if(! confirm(document.getElementById('translation-delete-link').innerHTML)) {
-                event.preventDefault();
-            }
-        });
+/**
+ * Update awesomplete list of tag for all elements matching the given selector
+ *
+ * @param selector  CSS selector
+ * @param tags      Array of tags
+ * @param instances List of existing awesomplete instances
+ */
+function updateAwesompleteList(selector, tags, instances) {
+  if (instances.length === 0) {
+    // First load: create Awesomplete instances
+    const elements = document.querySelectorAll(selector);
+    [...elements].forEach((element) => {
+      instances.push(createAwesompleteInstance(element, tags));
     });
-
-    /**
-     * Close alerts
-     */
-    var closeLinks = document.querySelectorAll('.pure-alert-close');
-    [].forEach.call(closeLinks, function(closeLink) {
-        closeLink.addEventListener('click', function(event) {
-            var alert = getParentByClass(event.target, 'pure-alert-closable');
-            alert.style.display = 'none';
-        });
+  } else {
+    // Update awesomplete tag list
+    instances.map((item) => {
+      item.list = tags;
+      return item;
     });
+  }
+  return instances;
+}
 
-    /**
-     * New version dismiss.
-     * Hide the message for one week using localStorage.
-     */
-    var newVersionDismiss = document.getElementById('new-version-dismiss');
-    var newVersionMessage = document.querySelector('.new-version-message');
-    if (newVersionMessage != null
-        && localStorage.getItem('newVersionDismiss') != null
-        && parseInt(localStorage.getItem('newVersionDismiss')) + 7*24*60*60*1000 > (new Date()).getTime()
-    ) {
-        newVersionMessage.style.display = 'none';
-    }
-    if (newVersionDismiss != null) {
-        newVersionDismiss.addEventListener('click', function () {
-            localStorage.setItem('newVersionDismiss', (new Date()).getTime());
-        });
+/**
+ * Add the class 'hidden' to city options not attached to the current selected continent.
+ *
+ * @param cities           List of <option> elements
+ * @param currentContinent Current selected continent
+ * @param reset            Set to true to reset the selected value
+ */
+function hideTimezoneCities(cities, currentContinent, reset = null) {
+  let first = true;
+  if (reset == null) {
+    reset = false;
+  }
+  [...cities].forEach((option) => {
+    if (option.getAttribute('data-continent') !== currentContinent) {
+      option.className = 'hidden';
+    } else {
+      option.className = '';
+      if (reset === true && first === true) {
+        option.setAttribute('selected', 'selected');
+        first = false;
+      }
     }
+  });
+}
 
-    var hiddenReturnurl = document.getElementsByName('returnurl');
-    if (hiddenReturnurl != null) {
-        hiddenReturnurl.value = window.location.href;
-    }
+/**
+ * Retrieve an element up in the tree from its class name.
+ */
+function getParentByClass(el, className) {
+  const p = el.parentNode;
+  if (p == null || p.classList.contains(className)) {
+    return p;
+  }
+  return getParentByClass(p, className);
+}
 
-    /**
-     * Autofocus text fields
-     */
-    var autofocusElements = document.querySelectorAll('.autofocus');
-    var breakLoop = false;
-    [].forEach.call(autofocusElements, function(autofocusElement) {
-        if (autofocusElement.value == '' && ! breakLoop) {
-            autofocusElement.focus();
-            breakLoop = true;
-        }
-    });
+function toggleHorizontal() {
+  [...document.getElementById('shaarli-menu').querySelectorAll('.menu-transform')].forEach((el) => {
+    el.classList.toggle('pure-menu-horizontal');
+  });
+}
 
-    /**
-     * Handle sub menus/forms
-     */
-    var openers = document.getElementsByClassName('subheader-opener');
-    if (openers != null) {
-        [].forEach.call(openers, function(opener) {
-             opener.addEventListener('click', function(event) {
-                 event.preventDefault();
-
-                 var id = opener.getAttribute('data-open-id');
-                 var sub = document.getElementById(id);
-
-                 if (sub != null) {
-                    [].forEach.call(document.getElementsByClassName('subheader-form'), function (element) {
-                        if (element != sub) {
-                            removeClass(element, 'open')
-                        }
-                     });
-
-                     sub.classList.toggle('open');
-                 }
-             });
-        });
-    }
+function toggleMenu(menu) {
+  // set timeout so that the panel has a chance to roll up
+  // before the menu switches states
+  if (menu.classList.contains('open')) {
+    setTimeout(toggleHorizontal, 500);
+  } else {
+    toggleHorizontal();
+  }
+  menu.classList.toggle('open');
+  document.getElementById('menu-toggle').classList.toggle('x');
+}
 
-    function removeClass(element, classname) {
-        element.className = element.className.replace(new RegExp('(?:^|\\s)'+ classname + '(?:\\s|$)'), ' ');
-    }
+function closeMenu(menu) {
+  if (menu.classList.contains('open')) {
+    toggleMenu(menu);
+  }
+}
 
-    /**
-     * Remove CSS target padding (for fixed bar)
-     */
-    if (location.hash != '') {
-        var anchor = document.getElementById(location.hash.substr(1));
-        if (anchor != null) {
-            var padsize = anchor.clientHeight;
-            this.window.scroll(0, this.window.scrollY - padsize);
-            anchor.style.paddingTop = 0;
-        }
+function toggleFold(button, description, thumb) {
+  // Switch fold/expand - up = fold
+  if (button.classList.contains('fa-chevron-up')) {
+    button.title = document.getElementById('translation-expand').innerHTML;
+    if (description != null) {
+      description.style.display = 'none';
     }
-
-    /**
-     * Text area resizer
-     */
-    var description = document.getElementById('lf_description');
-    var observe = function (element, event, handler) {
-        element.addEventListener(event, handler, false);
-    };
-    function init () {
-        function resize () {
-            /* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
-            var scrollTop  = window.pageYOffset ||
-                (document.documentElement || document.body.parentNode || document.body).scrollTop;
-
-            description.style.height = 'auto';
-            description.style.height = description.scrollHeight+10+'px';
-
-            window.scrollTo(0, scrollTop);
-        }
-        /* 0-timeout to get the already changed text */
-        function delayedResize () {
-            window.setTimeout(resize, 0);
-        }
-        observe(description, 'change',  resize);
-        observe(description, 'cut',     delayedResize);
-        observe(description, 'paste',   delayedResize);
-        observe(description, 'drop',    delayedResize);
-        observe(description, 'keydown', delayedResize);
-
-        resize();
+    if (thumb != null) {
+      thumb.style.display = 'none';
     }
-
+  } else {
+    button.title = document.getElementById('translation-fold').innerHTML;
     if (description != null) {
-        init();
-        // Submit editlink form with CTRL + Enter in the text area.
-        description.addEventListener('keydown', function (event) {
-            if (event.ctrlKey && event.keyCode === 13) {
-                document.getElementById('button-save-edit').click();
-            }
-        });
+      description.style.display = 'block';
     }
-
-    /**
-     * Awesomplete trigger.
-     */
-    var tags = document.getElementById('lf_tags');
-    if (tags != null) {
-        awesompleteUniqueTag('#lf_tags');
-    }
-
-    /**
-     * bLazy trigger
-     */
-    var picwall = document.getElementById('picwall_container');
-    if (picwall != null) {
-        var bLazy = new Blazy();
+    if (thumb != null) {
+      thumb.style.display = 'block';
     }
+  }
+  button.classList.toggle('fa-chevron-down');
+  button.classList.toggle('fa-chevron-up');
+}
 
-    /**
-     * Bookmarklet alert
-     */
-    var bookmarkletLinks = document.querySelectorAll('.bookmarklet-link');
-    var bkmMessage = document.getElementById('bookmarklet-alert');
-    [].forEach.call(bookmarkletLinks, function(link) {
-        link.addEventListener('click', function(event) {
-            event.preventDefault();
-            alert(bkmMessage.value);
-        });
-    });
-
-    /**
-     * Firefox Social
-     */
-    var ffButton = document.getElementById('ff-social-button');
-    if (ffButton != null) {
-        ffButton.addEventListener('click', function(event) {
-            activateFirefoxSocial(event.target);
-        });
-    }
+function removeClass(element, classname) {
+  element.className = element.className.replace(new RegExp(`(?:^|\\s)${classname}(?:\\s|$)`), ' ');
+}
 
-    /**
-     * Plugin admin order
-     */
-    var orderPA = document.querySelectorAll('.order');
-    [].forEach.call(orderPA, function(link) {
-        link.addEventListener('click', function(event) {
-            event.preventDefault();
-            if (event.target.classList.contains('order-up')) {
-                return orderUp(event.target.parentNode.parentNode.getAttribute('data-order'));
-            } else if (event.target.classList.contains('order-down')) {
-                return orderDown(event.target.parentNode.parentNode.getAttribute('data-order'));
-            }
-        });
-    });
+function init(description) {
+  function resize() {
+    /* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
+    const scrollTop = window.pageYOffset
+      || (document.documentElement || document.body.parentNode || document.body).scrollTop;
+
+    description.style.height = 'auto';
+    description.style.height = `${description.scrollHeight + 10}px`;
+
+    window.scrollTo(0, scrollTop);
+  }
+
+  /* 0-timeout to get the already changed text */
+  function delayedResize() {
+    window.setTimeout(resize, 0);
+  }
+
+  const observe = (element, event, handler) => {
+    element.addEventListener(event, handler, false);
+  };
+  observe(description, 'change', resize);
+  observe(description, 'cut', delayedResize);
+  observe(description, 'paste', delayedResize);
+  observe(description, 'drop', delayedResize);
+  observe(description, 'keydown', delayedResize);
+
+  resize();
+}
 
-    var continent = document.getElementById('continent');
-    var city = document.getElementById('city');
-    if (continent != null && city != null) {
-        continent.addEventListener('change', function (event) {
-            hideTimezoneCities(city, continent.options[continent.selectedIndex].value, true);
-        });
-        hideTimezoneCities(city, continent.options[continent.selectedIndex].value, false);
+(() => {
+  const basePath = document.querySelector('input[name="js_base_path"]').value;
+
+  /**
+   * Handle responsive menu.
+   * Source: http://purecss.io/layouts/tucked-menu-vertical/
+   */
+  const menu = document.getElementById('shaarli-menu');
+  const WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange' : 'resize';
+
+  const menuToggle = document.getElementById('menu-toggle');
+  if (menuToggle != null) {
+    menuToggle.addEventListener('click', () => toggleMenu(menu));
+  }
+
+  window.addEventListener(WINDOW_CHANGE_EVENT, () => closeMenu(menu));
+
+  /**
+   * Fold/Expand shaares description and thumbnail.
+   */
+  const foldAllButtons = document.getElementsByClassName('fold-all');
+  const foldButtons = document.getElementsByClassName('fold-button');
+
+  [...foldButtons].forEach((foldButton) => {
+    // Retrieve description
+    let description = null;
+    let thumbnail = null;
+    const linklistItem = getParentByClass(foldButton, 'linklist-item');
+    if (linklistItem != null) {
+      description = linklistItem.querySelector('.linklist-item-description');
+      thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
+      if (description != null || thumbnail != null) {
+        foldButton.style.display = 'inline';
+      }
     }
 
-    /**
-     * Bulk actions
-     */
-    var linkCheckboxes = document.querySelectorAll('.delete-checkbox');
-    var bar = document.getElementById('actions');
-    [].forEach.call(linkCheckboxes, function(checkbox) {
-        checkbox.style.display = 'inline-block';
-        checkbox.addEventListener('click', function(event) {
-            var count = 0;
-            var linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
-            [].forEach.call(linkCheckedCheckboxes, function(checkbox) {
-                count++;
-            });
-            if (count == 0 && bar.classList.contains('open')) {
-                bar.classList.toggle('open');
-            } else if (count > 0 && ! bar.classList.contains('open')) {
-                bar.classList.toggle('open');
-            }
-        });
+    foldButton.addEventListener('click', (event) => {
+      event.preventDefault();
+      toggleFold(event.target, description, thumbnail);
     });
-
-    var deleteButton = document.getElementById('actions-delete');
-    var token = document.querySelector('input[type="hidden"][name="token"]');
-    if (deleteButton != null && token != null) {
-        deleteButton.addEventListener('click', function(event) {
-            event.preventDefault();
-
-            var links = [];
-            var linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
-            [].forEach.call(linkCheckedCheckboxes, function(checkbox) {
-                links.push({
-                    'id': checkbox.value,
-                    'title': document.querySelector('.linklist-item[data-id="'+ checkbox.value +'"] .linklist-link').innerHTML
-                });
-            });
-
-            var message = 'Are you sure you want to delete '+ links.length +' links?\n';
-            message += 'This action is IRREVERSIBLE!\n\nTitles:\n';
-            var ids = [];
-            links.forEach(function(item) {
-                message += '  - '+ item['title'] +'\n';
-                ids.push(item['id']);
-            });
-
-            if (window.confirm(message)) {
-                window.location = '?delete_link&lf_linkdate='+ ids.join('+') +'&token='+ token.value;
+  });
+
+  if (foldAllButtons != null) {
+    [].forEach.call(foldAllButtons, (foldAllButton) => {
+      foldAllButton.addEventListener('click', (event) => {
+        event.preventDefault();
+        const state = foldAllButton.firstElementChild.getAttribute('class').indexOf('down') !== -1 ? 'down' : 'up';
+        [].forEach.call(foldButtons, (foldButton) => {
+          if ((foldButton.firstElementChild.classList.contains('fa-chevron-up') && state === 'down')
+            || (foldButton.firstElementChild.classList.contains('fa-chevron-down') && state === 'up')
+          ) {
+            return;
+          }
+          // Retrieve description
+          let description = null;
+          let thumbnail = null;
+          const linklistItem = getParentByClass(foldButton, 'linklist-item');
+          if (linklistItem != null) {
+            description = linklistItem.querySelector('.linklist-item-description');
+            thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
+            if (description != null || thumbnail != null) {
+              foldButton.style.display = 'inline';
             }
-        });
-    }
+          }
 
-    /**
-     * Tag list operations
-     *
-     * TODO: support error code in the backend for AJAX requests
-     */
-    var tagList = document.querySelector('input[name="taglist"]');
-    var existingTags = tagList ? tagList.value.split(' ') : [];
-    var awesomepletes = [];
-
-    // Display/Hide rename form
-    var renameTagButtons = document.querySelectorAll('.rename-tag');
-    [].forEach.call(renameTagButtons, function(rename) {
-        rename.addEventListener('click', function(event) {
-            event.preventDefault();
-            var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
-            var form = block.querySelector('.rename-tag-form');
-            if (form.style.display == 'none' || form.style.display == '') {
-                form.style.display = 'block';
-            } else {
-                form.style.display = 'none';
-            }
-            block.querySelector('input').focus();
+          toggleFold(foldButton.firstElementChild, description, thumbnail);
         });
+        foldAllButton.firstElementChild.classList.toggle('fa-chevron-down');
+        foldAllButton.firstElementChild.classList.toggle('fa-chevron-up');
+        foldAllButton.title = state === 'down'
+          ? document.getElementById('translation-fold-all').innerHTML
+          : document.getElementById('translation-expand-all').innerHTML;
+      });
     });
-
-    // Rename a tag with an AJAX request
-    var renameTagSubmits = document.querySelectorAll('.validate-rename-tag');
-    [].forEach.call(renameTagSubmits, function(rename) {
-        rename.addEventListener('click', function(event) {
-            event.preventDefault();
-            var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
-            var input = block.querySelector('.rename-tag-input');
-            var totag = input.value.replace('/"/g', '\\"');
-            if (totag.trim() == '') {
-                return;
-            }
-            var fromtag = block.getAttribute('data-tag');
-            var token = document.getElementById('token').value;
-
-            xhr = new XMLHttpRequest();
-            xhr.open('POST', '?do=changetag');
-            xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-            xhr.onload = function() {
-                if (xhr.status !== 200) {
-                    alert('An error occurred. Return code: '+ xhr.status);
-                    location.reload();
-                } else {
-                    block.setAttribute('data-tag', totag);
-                    input.setAttribute('name', totag);
-                    input.setAttribute('value', totag);
-                    findParent(input, 'div', {'class': 'rename-tag-form'}).style.display = 'none';
-                    block.querySelector('a.tag-link').innerHTML = htmlEntities(totag);
-                    block.querySelector('a.tag-link').setAttribute('href', '?searchtags='+ encodeURIComponent(totag));
-                    block.querySelector('a.rename-tag').setAttribute('href', '?do=changetag&fromtag='+ encodeURIComponent(totag));
-
-                    // Refresh awesomplete values
-                    for (var key in existingTags) {
-                        if (existingTags[key] == fromtag) {
-                            existingTags[key] = totag;
-                        }
-                    }
-                    awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
-                }
-            };
-            xhr.send('renametag=1&fromtag='+ encodeURIComponent(fromtag) +'&totag='+ encodeURIComponent(totag) +'&token='+ token);
-            refreshToken();
-        });
+  }
+
+  /**
+   * Confirmation message before deletion.
+   */
+  const deleteLinks = document.querySelectorAll('.confirm-delete');
+  [...deleteLinks].forEach((deleteLink) => {
+    deleteLink.addEventListener('click', (event) => {
+      if (!confirm(document.getElementById('translation-delete-link').innerHTML)) {
+        event.preventDefault();
+      }
     });
-
-    // Validate input with enter key
-    var renameTagInputs = document.querySelectorAll('.rename-tag-input');
-    [].forEach.call(renameTagInputs, function(rename) {
-
-        rename.addEventListener('keypress', function(event) {
-            if (event.keyCode === 13) { // enter
-                findParent(event.target, 'div', {'class': 'tag-list-item'}).querySelector('.validate-rename-tag').click();
-            }
-        });
+  });
+
+  /**
+   * Close alerts
+   */
+  const closeLinks = document.querySelectorAll('.pure-alert-close');
+  [...closeLinks].forEach((closeLink) => {
+    closeLink.addEventListener('click', (event) => {
+      const alert = getParentByClass(event.target, 'pure-alert-closable');
+      alert.style.display = 'none';
     });
-
-    // Delete a tag with an AJAX query (alert popup confirmation)
-    var deleteTagButtons = document.querySelectorAll('.delete-tag');
-    [].forEach.call(deleteTagButtons, function(rename) {
-        rename.style.display = 'inline';
-        rename.addEventListener('click', function(event) {
-            event.preventDefault();
-            var block = findParent(event.target, 'div', {'class': 'tag-list-item'});
-            var tag = block.getAttribute('data-tag');
-            var token = document.getElementById('token').value;
-
-            if (confirm('Are you sure you want to delete the tag "'+ tag +'"?')) {
-                xhr = new XMLHttpRequest();
-                xhr.open('POST', '?do=changetag');
-                xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-                xhr.onload = function() {
-                    block.remove();
-                };
-                xhr.send(encodeURI('deletetag=1&fromtag='+ tag +'&token='+ token));
-                refreshToken();
-            }
-        });
+  });
+
+  /**
+   * New version dismiss.
+   * Hide the message for one week using localStorage.
+   */
+  const newVersionDismiss = document.getElementById('new-version-dismiss');
+  const newVersionMessage = document.querySelector('.new-version-message');
+  if (newVersionMessage != null
+    && localStorage.getItem('newVersionDismiss') != null
+    && parseInt(localStorage.getItem('newVersionDismiss'), 10) + (7 * 24 * 60 * 60 * 1000) > (new Date()).getTime()
+  ) {
+    newVersionMessage.style.display = 'none';
+  }
+  if (newVersionDismiss != null) {
+    newVersionDismiss.addEventListener('click', () => {
+      localStorage.setItem('newVersionDismiss', (new Date()).getTime().toString());
     });
-
-    updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
-};
-
-/**
- * Find a parent element according to its tag and its attributes
- *
- * @param element    Element where to start the search
- * @param tagName    Expected parent tag name
- * @param attributes Associative array of expected attributes (name=>value).
- *
- * @returns Found element or null.
- */
-function findParent(element, tagName, attributes)
-{
-    while (element) {
-        if (element.tagName.toLowerCase() == tagName) {
-            var match = true;
-            for (var key in attributes) {
-                if (! element.hasAttribute(key)
-                    || (attributes[key] != '' && element.getAttribute(key).indexOf(attributes[key]) == -1)
-                ) {
-                    match = false;
-                    break;
-                }
+  }
+
+  const hiddenReturnurl = document.getElementsByName('returnurl');
+  if (hiddenReturnurl != null) {
+    hiddenReturnurl.value = window.location.href;
+  }
+
+  /**
+   * Autofocus text fields
+   */
+  const autofocusElements = document.querySelectorAll('.autofocus');
+  let breakLoop = false;
+  [].forEach.call(autofocusElements, (autofocusElement) => {
+    if (autofocusElement.value === '' && !breakLoop) {
+      autofocusElement.focus();
+      breakLoop = true;
+    }
+  });
+
+  /**
+   * Handle sub menus/forms
+   */
+  const openers = document.getElementsByClassName('subheader-opener');
+  if (openers != null) {
+    [...openers].forEach((opener) => {
+      opener.addEventListener('click', (event) => {
+        event.preventDefault();
+
+        const id = opener.getAttribute('data-open-id');
+        const sub = document.getElementById(id);
+
+        if (sub != null) {
+          [...document.getElementsByClassName('subheader-form')].forEach((element) => {
+            if (element !== sub) {
+              removeClass(element, 'open');
             }
+          });
 
-            if (match) {
-                return element;
-            }
+          sub.classList.toggle('open');
         }
-        element = element.parentElement;
+      });
+    });
+  }
+
+  /**
+   * Remove CSS target padding (for fixed bar)
+   */
+  if (location.hash !== '') {
+    const anchor = document.getElementById(location.hash.substr(1));
+    if (anchor != null) {
+      const padsize = anchor.clientHeight;
+      window.scroll(0, window.scrollY - padsize);
+      anchor.style.paddingTop = '0';
     }
-    return null;
-}
-
-/**
- * Ajax request to refresh the CSRF token.
- */
-function refreshToken()
-{
-    var xhr = new XMLHttpRequest();
-    xhr.open('GET', '?do=token');
-    xhr.onload = function() {
-        var token = document.getElementById('token');
-        token.setAttribute('value', xhr.responseText);
-    };
-    xhr.send();
-}
+  }
+
+  /**
+   * Text area resizer
+   */
+  const description = document.getElementById('lf_description');
+
+  if (description != null) {
+    init(description);
+    // Submit editlink form with CTRL + Enter in the text area.
+    description.addEventListener('keydown', (event) => {
+      if (event.ctrlKey && event.keyCode === 13) {
+        document.getElementById('button-save-edit').click();
+      }
+    });
+  }
+
+  /**
+   * Bookmarklet alert
+   */
+  const bookmarkletLinks = document.querySelectorAll('.bookmarklet-link');
+  const bkmMessage = document.getElementById('bookmarklet-alert');
+  [].forEach.call(bookmarkletLinks, (link) => {
+    link.addEventListener('click', (event) => {
+      event.preventDefault();
+      alert(bkmMessage.value);
+    });
+  });
 
-/**
- * Update awesomplete list of tag for all elements matching the given selector
- *
- * @param selector  CSS selector
- * @param tags      Array of tags
- * @param instances List of existing awesomplete instances
- */
-function updateAwesompleteList(selector, tags, instances)
-{
-    // First load: create Awesomplete instances
-    if (instances.length == 0) {
-        var elements = document.querySelectorAll(selector);
-        [].forEach.call(elements, function (element) {
-            instances.push(new Awesomplete(
-                element,
-                {'list': tags}
-            ));
+  const continent = document.getElementById('continent');
+  const city = document.getElementById('city');
+  if (continent != null && city != null) {
+    continent.addEventListener('change', () => {
+      hideTimezoneCities(city, continent.options[continent.selectedIndex].value, true);
+    });
+    hideTimezoneCities(city, continent.options[continent.selectedIndex].value, false);
+  }
+
+  /**
+   * Bulk actions
+   */
+  const linkCheckboxes = document.querySelectorAll('.link-checkbox');
+  const bar = document.getElementById('actions');
+  [...linkCheckboxes].forEach((checkbox) => {
+    checkbox.style.display = 'inline-block';
+    checkbox.addEventListener('change', () => {
+      const linkCheckedCheckboxes = document.querySelectorAll('.link-checkbox:checked');
+      const count = [...linkCheckedCheckboxes].length;
+      if (count === 0 && bar.classList.contains('open')) {
+        bar.classList.toggle('open');
+      } else if (count > 0 && !bar.classList.contains('open')) {
+        bar.classList.toggle('open');
+      }
+    });
+  });
+
+  const deleteButton = document.getElementById('actions-delete');
+  const token = document.getElementById('token');
+  if (deleteButton != null && token != null) {
+    deleteButton.addEventListener('click', (event) => {
+      event.preventDefault();
+
+      const links = [];
+      const linkCheckedCheckboxes = document.querySelectorAll('.link-checkbox:checked');
+      [...linkCheckedCheckboxes].forEach((checkbox) => {
+        links.push({
+          id: checkbox.value,
+          title: document.querySelector(`.linklist-item[data-id="${checkbox.value}"] .linklist-link`).innerHTML,
         });
-    } else {
-        // Update awesomplete tag list
-        for (var key in instances) {
-            instances[key].list = tags;
+      });
+
+      let message = `Are you sure you want to delete ${links.length} links?\n`;
+      message += 'This action is IRREVERSIBLE!\n\nTitles:\n';
+      const ids = [];
+      links.forEach((item) => {
+        message += `  - ${item.title}\n`;
+        ids.push(item.id);
+      });
+
+      if (window.confirm(message)) {
+        window.location = `${basePath}/admin/shaare/delete?id=${ids.join('+')}&token=${token.value}`;
+      }
+    });
+  }
+
+  const changeVisibilityButtons = document.querySelectorAll('.actions-change-visibility');
+  if (changeVisibilityButtons != null && token != null) {
+    [...changeVisibilityButtons].forEach((button) => {
+      button.addEventListener('click', (event) => {
+        event.preventDefault();
+        const visibility = event.target.getAttribute('data-visibility');
+
+        const links = [];
+        const linkCheckedCheckboxes = document.querySelectorAll('.link-checkbox:checked');
+        [...linkCheckedCheckboxes].forEach((checkbox) => {
+          links.push({
+            id: checkbox.value,
+            title: document.querySelector(`.linklist-item[data-id="${checkbox.value}"] .linklist-link`).innerHTML,
+          });
+        });
+
+        const ids = links.map((item) => item.id);
+        window.location = (
+          `${basePath}/admin/shaare/visibility?token=${token.value}&newVisibility=${visibility}&id=${ids.join('+')}`
+        );
+      });
+    });
+  }
+
+  /**
+   * Select all button
+   */
+  const selectAllButtons = document.querySelectorAll('.select-all-button');
+  [...selectAllButtons].forEach((selectAllButton) => {
+    selectAllButton.addEventListener('click', (e) => {
+      e.preventDefault();
+      const checked = selectAllButton.classList.contains('filter-off');
+      [...selectAllButtons].forEach((selectAllButton2) => {
+        selectAllButton2.classList.toggle('filter-off');
+        selectAllButton2.classList.toggle('filter-on');
+      });
+      [...linkCheckboxes].forEach((linkCheckbox) => {
+        linkCheckbox.checked = checked;
+        linkCheckbox.dispatchEvent(new Event('change'));
+      });
+    });
+  });
+
+  /**
+   * Tag list operations
+   *
+   * TODO: support error code in the backend for AJAX requests
+   */
+  const tagList = document.querySelector('input[name="taglist"]');
+  let existingTags = tagList ? tagList.value.split(' ') : [];
+  let awesomepletes = [];
+
+  // Display/Hide rename form
+  const renameTagButtons = document.querySelectorAll('.rename-tag');
+  [...renameTagButtons].forEach((rename) => {
+    rename.addEventListener('click', (event) => {
+      event.preventDefault();
+      const block = findParent(event.target, 'div', { class: 'tag-list-item' });
+      const form = block.querySelector('.rename-tag-form');
+      if (form.style.display === 'none' || form.style.display === '') {
+        form.style.display = 'block';
+      } else {
+        form.style.display = 'none';
+      }
+      block.querySelector('input').focus();
+    });
+  });
+
+  // Rename a tag with an AJAX request
+  const renameTagSubmits = document.querySelectorAll('.validate-rename-tag');
+  [...renameTagSubmits].forEach((rename) => {
+    rename.addEventListener('click', (event) => {
+      event.preventDefault();
+      const block = findParent(event.target, 'div', { class: 'tag-list-item' });
+      const input = block.querySelector('.rename-tag-input');
+      const totag = input.value.replace('/"/g', '\\"');
+      if (totag.trim() === '') {
+        return;
+      }
+      const refreshedToken = document.getElementById('token').value;
+      const fromtag = block.getAttribute('data-tag');
+      const fromtagUrl = block.getAttribute('data-tag-url');
+      const xhr = new XMLHttpRequest();
+      xhr.open('POST', `${basePath}/admin/tags`);
+      xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+      xhr.onload = () => {
+        if (xhr.status !== 200) {
+          alert(`An error occurred. Return code: ${xhr.status}`);
+          location.reload();
+        } else {
+          block.setAttribute('data-tag', totag);
+          block.setAttribute('data-tag-url', encodeURIComponent(totag));
+          input.setAttribute('name', totag);
+          input.setAttribute('value', totag);
+          findParent(input, 'div', { class: 'rename-tag-form' }).style.display = 'none';
+          block.querySelector('a.tag-link').innerHTML = he.encode(totag);
+          block
+            .querySelector('a.tag-link')
+            .setAttribute('href', `${basePath}/?searchtags=${encodeURIComponent(totag)}`);
+          block
+            .querySelector('a.count')
+            .setAttribute('href', `${basePath}/add-tag/${encodeURIComponent(totag)}`);
+          block
+            .querySelector('a.rename-tag')
+            .setAttribute('href', `${basePath}/admin/tags?fromtag=${encodeURIComponent(totag)}`);
+
+          // Refresh awesomplete values
+          existingTags = existingTags.map((tag) => (tag === fromtag ? totag : tag));
+          awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
         }
-    }
-    return instances;
-}
+      };
+      xhr.send(`renametag=1&fromtag=${fromtagUrl}&totag=${encodeURIComponent(totag)}&token=${refreshedToken}`);
+      refreshToken(basePath);
+    });
+  });
+
+  // Validate input with enter key
+  const renameTagInputs = document.querySelectorAll('.rename-tag-input');
+  [...renameTagInputs].forEach((rename) => {
+    rename.addEventListener('keypress', (event) => {
+      if (event.keyCode === 13) { // enter
+        findParent(event.target, 'div', { class: 'tag-list-item' }).querySelector('.validate-rename-tag').click();
+      }
+    });
+  });
+
+  // Delete a tag with an AJAX query (alert popup confirmation)
+  const deleteTagButtons = document.querySelectorAll('.delete-tag');
+  [...deleteTagButtons].forEach((rename) => {
+    rename.style.display = 'inline';
+    rename.addEventListener('click', (event) => {
+      event.preventDefault();
+      const block = findParent(event.target, 'div', { class: 'tag-list-item' });
+      const tag = block.getAttribute('data-tag');
+      const tagUrl = block.getAttribute('data-tag-url');
+      const refreshedToken = document.getElementById('token').value;
+
+      if (confirm(`Are you sure you want to delete the tag "${tag}"?`)) {
+        const xhr = new XMLHttpRequest();
+        xhr.open('POST', `${basePath}/admin/tags`);
+        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+        xhr.onload = () => {
+          block.remove();
+        };
+        xhr.send(`deletetag=1&fromtag=${tagUrl}&token=${refreshedToken}`);
+        refreshToken(basePath);
 
-/**
- * html_entities in JS
- *
- * @see http://stackoverflow.com/questions/18749591/encode-html-entities-in-javascript
- */
-function htmlEntities(str)
-{
-    return str.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
-        return '&#'+i.charCodeAt(0)+';';
+        existingTags = existingTags.filter((tagItem) => tagItem !== tag);
+        awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
+      }
     });
-}
+  });
 
-function activateFirefoxSocial(node) {
-    var loc = location.href;
-    var baseURL = loc.substring(0, loc.lastIndexOf("/") + 1);
-    var title = document.title;
-
-    // Keeping the data separated (ie. not in the DOM) so that it's maintainable and diffable.
-    var data = {
-        name: title,
-        description: document.getElementById('translation-delete-link').innerHTML,
-        author: "Shaarli",
-        version: "1.0.0",
-
-        iconURL: baseURL + "/images/favicon.ico",
-        icon32URL: baseURL + "/images/favicon.ico",
-        icon64URL: baseURL + "/images/favicon.ico",
-
-        shareURL: baseURL + "?post=%{url}&title=%{title}&description=%{text}&source=firefoxsocialapi",
-        homepageURL: baseURL
-    };
-    node.setAttribute("data-service", JSON.stringify(data));
-
-    var activate = new CustomEvent("ActivateSocialFeature");
-    node.dispatchEvent(activate);
-}
+  const autocompleteFields = document.querySelectorAll('input[data-multiple]');
+  [...autocompleteFields].forEach((autocompleteField) => {
+    awesomepletes.push(createAwesompleteInstance(autocompleteField));
+  });
 
-/**
- * Add the class 'hidden' to city options not attached to the current selected continent.
- *
- * @param cities           List of <option> elements
- * @param currentContinent Current selected continent
- * @param reset            Set to true to reset the selected value
- */
-function hideTimezoneCities(cities, currentContinent) {
-    var first = true;
-    if (reset == null) {
-        reset = false;
-    }
-    [].forEach.call(cities, function (option) {
-        if (option.getAttribute('data-continent') != currentContinent) {
-            option.className = 'hidden';
-        } else {
-            option.className = '';
-            if (reset === true && first === true) {
-                option.setAttribute('selected', 'selected');
-                first = false;
-            }
-        }
+  const exportForm = document.querySelector('#exportform');
+  if (exportForm != null) {
+    exportForm.addEventListener('submit', (event) => {
+      event.preventDefault();
+
+      refreshToken(basePath, () => {
+        event.target.submit();
+      });
     });
-}
+  }
+})();