assets/default/js/base.js

   1 import Awesomplete from 'awesomplete';
   2
   3 /**
   4  * Find a parent element according to its tag and its attributes
   5  *
   6  * @param element    Element where to start the search
   7  * @param tagName    Expected parent tag name
   8  * @param attributes Associative array of expected attributes (name=>value).
   9  *
  10  * @returns Found element or null.
  11  */
  12 function findParent(element, tagName, attributes) {
  13   const parentMatch = key => attributes[key] !== '' && element.getAttribute(key).indexOf(attributes[key]) !== -1;
  14   while (element) {
  15     if (element.tagName.toLowerCase() === tagName) {
  16       if (Object.keys(attributes).find(parentMatch)) {
  17         return element;
  18       }
  19     }
  20     element = element.parentElement;
  21   }
  22   return null;
  23 }
  24
  25 /**
  26  * Ajax request to refresh the CSRF token.
  27  */
  28 function refreshToken() {
  29   const xhr = new XMLHttpRequest();
  30   xhr.open('GET', '?do=token');
  31   xhr.onload = () => {
  32     const token = document.getElementById('token');
  33     token.setAttribute('value', xhr.responseText);
  34   };
  35   xhr.send();
  36 }
  37
  38 function createAwesompleteInstance(element, tags = []) {
  39   const awesome = new Awesomplete(Awesomplete.$(element));
  40   // Tags are separated by a space
  41   awesome.filter = (text, input) => Awesomplete.FILTER_CONTAINS(text, input.match(/[^ ]*$/)[0]);
  42   // Insert new selected tag in the input
  43   awesome.replace = (text) => {
  44     const before = awesome.input.value.match(/^.+ \s*|/)[0];
  45     awesome.input.value = `${before}${text} `;
  46   };
  47   // Highlight found items
  48   awesome.item = (text, input) => Awesomplete.ITEM(text, input.match(/[^ ]*$/)[0]);
  49   // Don't display already selected items
  50   const reg = /(\w+) /g;
  51   let match;
  52   awesome.data = (item, input) => {
  53     while ((match = reg.exec(input))) {
  54       if (item === match[1]) {
  55         return '';
  56       }
  57     }
  58     return item;
  59   };
  60   awesome.minChars = 1;
  61   if (tags.length) {
  62     awesome.list = tags;
  63   }
  64
  65   return awesome;
  66 }
  67
  68 /**
  69  * Update awesomplete list of tag for all elements matching the given selector
  70  *
  71  * @param selector  CSS selector
  72  * @param tags      Array of tags
  73  * @param instances List of existing awesomplete instances
  74  */
  75 function updateAwesompleteList(selector, tags, instances) {
  76   if (instances.length === 0) {
  77     // First load: create Awesomplete instances
  78     const elements = document.querySelectorAll(selector);
  79     [...elements].forEach((element) => {
  80       instances.push(createAwesompleteInstance(element, tags));
  81     });
  82   } else {
  83     // Update awesomplete tag list
  84     instances.map((item) => {
  85       item.list = tags;
  86       return item;
  87     });
  88   }
  89   return instances;
  90 }
  91
  92 /**
  93  * html_entities in JS
  94  *
  95  * @see http://stackoverflow.com/questions/18749591/encode-html-entities-in-javascript
  96  */
  97 function htmlEntities(str) {
  98   return str.replace(/[\u00A0-\u9999<>&]/gim, i => `&#${i.charCodeAt(0)};`);
  99 }
 100
 101 /**
 102  * Add the class 'hidden' to city options not attached to the current selected continent.
 103  *
 104  * @param cities           List of <option> elements
 105  * @param currentContinent Current selected continent
 106  * @param reset            Set to true to reset the selected value
 107  */
 108 function hideTimezoneCities(cities, currentContinent, reset = null) {
 109   let first = true;
 110   if (reset == null) {
 111     reset = false;
 112   }
 113   [...cities].forEach((option) => {
 114     if (option.getAttribute('data-continent') !== currentContinent) {
 115       option.className = 'hidden';
 116     } else {
 117       option.className = '';
 118       if (reset === true && first === true) {
 119         option.setAttribute('selected', 'selected');
 120         first = false;
 121       }
 122     }
 123   });
 124 }
 125
 126 /**
 127  * Retrieve an element up in the tree from its class name.
 128  */
 129 function getParentByClass(el, className) {
 130   const p = el.parentNode;
 131   if (p == null || p.classList.contains(className)) {
 132     return p;
 133   }
 134   return getParentByClass(p, className);
 135 }
 136
 137 function toggleHorizontal() {
 138   [...document.getElementById('shaarli-menu').querySelectorAll('.menu-transform')].forEach((el) => {
 139     el.classList.toggle('pure-menu-horizontal');
 140   });
 141 }
 142
 143 function toggleMenu(menu) {
 144   // set timeout so that the panel has a chance to roll up
 145   // before the menu switches states
 146   if (menu.classList.contains('open')) {
 147     setTimeout(toggleHorizontal, 500);
 148   } else {
 149     toggleHorizontal();
 150   }
 151   menu.classList.toggle('open');
 152   document.getElementById('menu-toggle').classList.toggle('x');
 153 }
 154
 155 function closeMenu(menu) {
 156   if (menu.classList.contains('open')) {
 157     toggleMenu(menu);
 158   }
 159 }
 160
 161 function toggleFold(button, description, thumb) {
 162   // Switch fold/expand - up = fold
 163   if (button.classList.contains('fa-chevron-up')) {
 164     button.title = document.getElementById('translation-expand').innerHTML;
 165     if (description != null) {
 166       description.style.display = 'none';
 167     }
 168     if (thumb != null) {
 169       thumb.style.display = 'none';
 170     }
 171   } else {
 172     button.title = document.getElementById('translation-fold').innerHTML;
 173     if (description != null) {
 174       description.style.display = 'block';
 175     }
 176     if (thumb != null) {
 177       thumb.style.display = 'block';
 178     }
 179   }
 180   button.classList.toggle('fa-chevron-down');
 181   button.classList.toggle('fa-chevron-up');
 182 }
 183
 184 function removeClass(element, classname) {
 185   element.className = element.className.replace(new RegExp(`(?:^|\\s)${classname}(?:\\s|$)`), ' ');
 186 }
 187
 188 function init(description) {
 189   function resize() {
 190     /* Fix jumpy resizing: https://stackoverflow.com/a/18262927/1484919 */
 191     const scrollTop = window.pageYOffset ||
 192       (document.documentElement || document.body.parentNode || document.body).scrollTop;
 193
 194     description.style.height = 'auto';
 195     description.style.height = `${description.scrollHeight + 10}px`;
 196
 197     window.scrollTo(0, scrollTop);
 198   }
 199
 200   /* 0-timeout to get the already changed text */
 201   function delayedResize() {
 202     window.setTimeout(resize, 0);
 203   }
 204
 205   const observe = (element, event, handler) => {
 206     element.addEventListener(event, handler, false);
 207   };
 208   observe(description, 'change', resize);
 209   observe(description, 'cut', delayedResize);
 210   observe(description, 'paste', delayedResize);
 211   observe(description, 'drop', delayedResize);
 212   observe(description, 'keydown', delayedResize);
 213
 214   resize();
 215 }
 216
 217 (() => {
 218   /**
 219    * Handle responsive menu.
 220    * Source: http://purecss.io/layouts/tucked-menu-vertical/
 221    */
 222   const menu = document.getElementById('shaarli-menu');
 223   const WINDOW_CHANGE_EVENT = ('onorientationchange' in window) ? 'orientationchange' : 'resize';
 224
 225   const menuToggle = document.getElementById('menu-toggle');
 226   if (menuToggle != null) {
 227     menuToggle.addEventListener('click', () => toggleMenu(menu));
 228   }
 229
 230   window.addEventListener(WINDOW_CHANGE_EVENT, () => closeMenu(menu));
 231
 232   /**
 233    * Fold/Expand shaares description and thumbnail.
 234    */
 235   const foldAllButtons = document.getElementsByClassName('fold-all');
 236   const foldButtons = document.getElementsByClassName('fold-button');
 237
 238   [...foldButtons].forEach((foldButton) => {
 239     // Retrieve description
 240     let description = null;
 241     let thumbnail = null;
 242     const linklistItem = getParentByClass(foldButton, 'linklist-item');
 243     if (linklistItem != null) {
 244       description = linklistItem.querySelector('.linklist-item-description');
 245       thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
 246       if (description != null || thumbnail != null) {
 247         foldButton.style.display = 'inline';
 248       }
 249     }
 250
 251     foldButton.addEventListener('click', (event) => {
 252       event.preventDefault();
 253       toggleFold(event.target, description, thumbnail);
 254     });
 255   });
 256
 257   if (foldAllButtons != null) {
 258     [].forEach.call(foldAllButtons, (foldAllButton) => {
 259       foldAllButton.addEventListener('click', (event) => {
 260         event.preventDefault();
 261         const state = foldAllButton.firstElementChild.getAttribute('class').indexOf('down') !== -1 ? 'down' : 'up';
 262         [].forEach.call(foldButtons, (foldButton) => {
 263           if ((foldButton.firstElementChild.classList.contains('fa-chevron-up') && state === 'down')
 264             || (foldButton.firstElementChild.classList.contains('fa-chevron-down') && state === 'up')
 265           ) {
 266             return;
 267           }
 268           // Retrieve description
 269           let description = null;
 270           let thumbnail = null;
 271           const linklistItem = getParentByClass(foldButton, 'linklist-item');
 272           if (linklistItem != null) {
 273             description = linklistItem.querySelector('.linklist-item-description');
 274             thumbnail = linklistItem.querySelector('.linklist-item-thumbnail');
 275             if (description != null || thumbnail != null) {
 276               foldButton.style.display = 'inline';
 277             }
 278           }
 279
 280           toggleFold(foldButton.firstElementChild, description, thumbnail);
 281         });
 282         foldAllButton.firstElementChild.classList.toggle('fa-chevron-down');
 283         foldAllButton.firstElementChild.classList.toggle('fa-chevron-up');
 284         foldAllButton.title = state === 'down'
 285           ? document.getElementById('translation-fold-all').innerHTML
 286           : document.getElementById('translation-expand-all').innerHTML;
 287       });
 288     });
 289   }
 290
 291   /**
 292    * Confirmation message before deletion.
 293    */
 294   const deleteLinks = document.querySelectorAll('.confirm-delete');
 295   [...deleteLinks].forEach((deleteLink) => {
 296     deleteLink.addEventListener('click', (event) => {
 297       if (!confirm(document.getElementById('translation-delete-link').innerHTML)) {
 298         event.preventDefault();
 299       }
 300     });
 301   });
 302
 303   /**
 304    * Close alerts
 305    */
 306   const closeLinks = document.querySelectorAll('.pure-alert-close');
 307   [...closeLinks].forEach((closeLink) => {
 308     closeLink.addEventListener('click', (event) => {
 309       const alert = getParentByClass(event.target, 'pure-alert-closable');
 310       alert.style.display = 'none';
 311     });
 312   });
 313
 314   /**
 315    * New version dismiss.
 316    * Hide the message for one week using localStorage.
 317    */
 318   const newVersionDismiss = document.getElementById('new-version-dismiss');
 319   const newVersionMessage = document.querySelector('.new-version-message');
 320   if (newVersionMessage != null
 321     && localStorage.getItem('newVersionDismiss') != null
 322     && parseInt(localStorage.getItem('newVersionDismiss'), 10) + (7 * 24 * 60 * 60 * 1000) > (new Date()).getTime()
 323   ) {
 324     newVersionMessage.style.display = 'none';
 325   }
 326   if (newVersionDismiss != null) {
 327     newVersionDismiss.addEventListener('click', () => {
 328       localStorage.setItem('newVersionDismiss', (new Date()).getTime().toString());
 329     });
 330   }
 331
 332   const hiddenReturnurl = document.getElementsByName('returnurl');
 333   if (hiddenReturnurl != null) {
 334     hiddenReturnurl.value = window.location.href;
 335   }
 336
 337   /**
 338    * Autofocus text fields
 339    */
 340   const autofocusElements = document.querySelectorAll('.autofocus');
 341   let breakLoop = false;
 342   [].forEach.call(autofocusElements, (autofocusElement) => {
 343     if (autofocusElement.value === '' && !breakLoop) {
 344       autofocusElement.focus();
 345       breakLoop = true;
 346     }
 347   });
 348
 349   /**
 350    * Handle sub menus/forms
 351    */
 352   const openers = document.getElementsByClassName('subheader-opener');
 353   if (openers != null) {
 354     [...openers].forEach((opener) => {
 355       opener.addEventListener('click', (event) => {
 356         event.preventDefault();
 357
 358         const id = opener.getAttribute('data-open-id');
 359         const sub = document.getElementById(id);
 360
 361         if (sub != null) {
 362           [...document.getElementsByClassName('subheader-form')].forEach((element) => {
 363             if (element !== sub) {
 364               removeClass(element, 'open');
 365             }
 366           });
 367
 368           sub.classList.toggle('open');
 369         }
 370       });
 371     });
 372   }
 373
 374   /**
 375    * Remove CSS target padding (for fixed bar)
 376    */
 377   if (location.hash !== '') {
 378     const anchor = document.getElementById(location.hash.substr(1));
 379     if (anchor != null) {
 380       const padsize = anchor.clientHeight;
 381       window.scroll(0, window.scrollY - padsize);
 382       anchor.style.paddingTop = '0';
 383     }
 384   }
 385
 386   /**
 387    * Text area resizer
 388    */
 389   const description = document.getElementById('lf_description');
 390
 391   if (description != null) {
 392     init(description);
 393     // Submit editlink form with CTRL + Enter in the text area.
 394     description.addEventListener('keydown', (event) => {
 395       if (event.ctrlKey && event.keyCode === 13) {
 396         document.getElementById('button-save-edit').click();
 397       }
 398     });
 399   }
 400
 401   /**
 402    * Bookmarklet alert
 403    */
 404   const bookmarkletLinks = document.querySelectorAll('.bookmarklet-link');
 405   const bkmMessage = document.getElementById('bookmarklet-alert');
 406   [].forEach.call(bookmarkletLinks, (link) => {
 407     link.addEventListener('click', (event) => {
 408       event.preventDefault();
 409       alert(bkmMessage.value);
 410     });
 411   });
 412
 413   const continent = document.getElementById('continent');
 414   const city = document.getElementById('city');
 415   if (continent != null && city != null) {
 416     continent.addEventListener('change', () => {
 417       hideTimezoneCities(city, continent.options[continent.selectedIndex].value, true);
 418     });
 419     hideTimezoneCities(city, continent.options[continent.selectedIndex].value, false);
 420   }
 421
 422   /**
 423    * Bulk actions
 424    */
 425   const linkCheckboxes = document.querySelectorAll('.delete-checkbox');
 426   const bar = document.getElementById('actions');
 427   [...linkCheckboxes].forEach((checkbox) => {
 428     checkbox.style.display = 'inline-block';
 429     checkbox.addEventListener('click', () => {
 430       const linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
 431       const count = [...linkCheckedCheckboxes].length;
 432       if (count === 0 && bar.classList.contains('open')) {
 433         bar.classList.toggle('open');
 434       } else if (count > 0 && !bar.classList.contains('open')) {
 435         bar.classList.toggle('open');
 436       }
 437     });
 438   });
 439
 440   const deleteButton = document.getElementById('actions-delete');
 441   const token = document.getElementById('token');
 442   if (deleteButton != null && token != null) {
 443     deleteButton.addEventListener('click', (event) => {
 444       event.preventDefault();
 445
 446       const links = [];
 447       const linkCheckedCheckboxes = document.querySelectorAll('.delete-checkbox:checked');
 448       [...linkCheckedCheckboxes].forEach((checkbox) => {
 449         links.push({
 450           id: checkbox.value,
 451           title: document.querySelector(`.linklist-item[data-id="${checkbox.value}"] .linklist-link`).innerHTML,
 452         });
 453       });
 454
 455       let message = `Are you sure you want to delete ${links.length} links?\n`;
 456       message += 'This action is IRREVERSIBLE!\n\nTitles:\n';
 457       const ids = [];
 458       links.forEach((item) => {
 459         message += `  - ${item.title}\n`;
 460         ids.push(item.id);
 461       });
 462
 463       if (window.confirm(message)) {
 464         window.location = `?delete_link&lf_linkdate=${ids.join('+')}&token=${token.value}`;
 465       }
 466     });
 467   }
 468
 469   /**
 470    * Tag list operations
 471    *
 472    * TODO: support error code in the backend for AJAX requests
 473    */
 474   const tagList = document.querySelector('input[name="taglist"]');
 475   let existingTags = tagList ? tagList.value.split(' ') : [];
 476   let awesomepletes = [];
 477
 478   // Display/Hide rename form
 479   const renameTagButtons = document.querySelectorAll('.rename-tag');
 480   [...renameTagButtons].forEach((rename) => {
 481     rename.addEventListener('click', (event) => {
 482       event.preventDefault();
 483       const block = findParent(event.target, 'div', { class: 'tag-list-item' });
 484       const form = block.querySelector('.rename-tag-form');
 485       if (form.style.display === 'none' || form.style.display === '') {
 486         form.style.display = 'block';
 487       } else {
 488         form.style.display = 'none';
 489       }
 490       block.querySelector('input').focus();
 491     });
 492   });
 493
 494   // Rename a tag with an AJAX request
 495   const renameTagSubmits = document.querySelectorAll('.validate-rename-tag');
 496   [...renameTagSubmits].forEach((rename) => {
 497     rename.addEventListener('click', (event) => {
 498       event.preventDefault();
 499       const block = findParent(event.target, 'div', { class: 'tag-list-item' });
 500       const input = block.querySelector('.rename-tag-input');
 501       const totag = input.value.replace('/"/g', '\\"');
 502       if (totag.trim() === '') {
 503         return;
 504       }
 505       const refreshedToken = document.getElementById('token').value;
 506       const fromtag = block.getAttribute('data-tag');
 507       const xhr = new XMLHttpRequest();
 508       xhr.open('POST', '?do=changetag');
 509       xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 510       xhr.onload = () => {
 511         if (xhr.status !== 200) {
 512           alert(`An error occurred. Return code: ${xhr.status}`);
 513           location.reload();
 514         } else {
 515           block.setAttribute('data-tag', totag);
 516           input.setAttribute('name', totag);
 517           input.setAttribute('value', totag);
 518           findParent(input, 'div', { class: 'rename-tag-form' }).style.display = 'none';
 519           block.querySelector('a.tag-link').innerHTML = htmlEntities(totag);
 520           block.querySelector('a.tag-link').setAttribute('href', `?searchtags=${encodeURIComponent(totag)}`);
 521           block.querySelector('a.rename-tag').setAttribute('href', `?do=changetag&fromtag=${encodeURIComponent(totag)}`);
 522
 523           // Refresh awesomplete values
 524           existingTags = existingTags.map(tag => (tag === fromtag ? totag : tag));
 525           awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
 526         }
 527       };
 528       xhr.send(`renametag=1&fromtag=${encodeURIComponent(fromtag)}&totag=${encodeURIComponent(totag)}&token=${refreshedToken}`);
 529       refreshToken();
 530     });
 531   });
 532
 533   // Validate input with enter key
 534   const renameTagInputs = document.querySelectorAll('.rename-tag-input');
 535   [...renameTagInputs].forEach((rename) => {
 536     rename.addEventListener('keypress', (event) => {
 537       if (event.keyCode === 13) { // enter
 538         findParent(event.target, 'div', { class: 'tag-list-item' }).querySelector('.validate-rename-tag').click();
 539       }
 540     });
 541   });
 542
 543   // Delete a tag with an AJAX query (alert popup confirmation)
 544   const deleteTagButtons = document.querySelectorAll('.delete-tag');
 545   [...deleteTagButtons].forEach((rename) => {
 546     rename.style.display = 'inline';
 547     rename.addEventListener('click', (event) => {
 548       event.preventDefault();
 549       const block = findParent(event.target, 'div', { class: 'tag-list-item' });
 550       const tag = block.getAttribute('data-tag');
 551       const refreshedToken = document.getElementById('token');
 552
 553       if (confirm(`Are you sure you want to delete the tag "${tag}"?`)) {
 554         const xhr = new XMLHttpRequest();
 555         xhr.open('POST', '?do=changetag');
 556         xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 557         xhr.onload = () => {
 558           block.remove();
 559         };
 560         xhr.send(encodeURI(`deletetag=1&fromtag=${tag}&token=${refreshedToken}`));
 561         refreshToken();
 562
 563         existingTags = existingTags.filter(tagItem => tagItem !== tag);
 564         awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
 565       }
 566     });
 567   });
 568
 569   const autocompleteFields = document.querySelectorAll('input[data-multiple]');
 570   [...autocompleteFields].forEach((autocompleteField) => {
 571     awesomepletes.push(createAwesompleteInstance(autocompleteField));
 572   });
 573 })();