aboutsummaryrefslogtreecommitdiffhomepage
path: root/assets/default/js/base.js
blob: 1b8d8c36fa33d603a78232495e6e612d92eb6879 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
import Awesomplete from 'awesomplete';

/**
 * 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) {
  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;
}

/**
 * Ajax request to refresh the CSRF token.
 */
function refreshToken() {
  const xhr = new XMLHttpRequest();
  xhr.open('GET', '?do=token');
  xhr.onload = () => {
    const token = document.getElementById('token');
    token.setAttribute('value', xhr.responseText);
  };
  xhr.send();
}

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;
}

/**
 * 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));
    });
  } else {
    // Update awesomplete tag list
    instances.map((item) => {
      item.list = tags;
      return item;
    });
  }
  return instances;
}

/**
 * html_entities in JS
 *
 * @see http://stackoverflow.com/questions/18749591/encode-html-entities-in-javascript
 */
function htmlEntities(str) {
  return str.replace(/[\u00A0-\u9999<>&]/gim, i => `&#${i.charCodeAt(0)};`);
}

/**
 * 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;
      }
    }
  });
}

/**
 * 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);
}

function toggleHorizontal() {
  [...document.getElementById('shaarli-menu').querySelectorAll('.menu-transform')].forEach((el) => {
    el.classList.toggle('pure-menu-horizontal');
  });
}

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 closeMenu(menu) {
  if (menu.classList.contains('open')) {
    toggleMenu(menu);
  }
}

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 removeClass(element, classname) {
  element.className = element.className.replace(new RegExp(`(?:^|\\s)${classname}(?:\\s|$)`), ' ');
}

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();
}

(() => {
  /**
   * 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';
      }
    }

    foldButton.addEventListener('click', (event) => {
      event.preventDefault();
      toggleFold(event.target, description, thumbnail);
    });
  });

  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';
            }
          }

          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;
      });
    });
  }

  /**
   * 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();
      }
    });
  });

  /**
   * 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';
    });
  });

  /**
   * 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());
    });
  }

  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');
            }
          });

          sub.classList.toggle('open');
        }
      });
    });
  }

  /**
   * 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';
    }
  }

  /**
   * 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);
    });
  });

  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('.delete-checkbox');
  const bar = document.getElementById('actions');
  [...linkCheckboxes].forEach((checkbox) => {
    checkbox.style.display = 'inline-block';
    checkbox.addEventListener('click', () => {
      const linkCheckedCheckboxes = document.querySelectorAll('.delete-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('.delete-checkbox:checked');
      [...linkCheckedCheckboxes].forEach((checkbox) => {
        links.push({
          id: checkbox.value,
          title: document.querySelector(`.linklist-item[data-id="${checkbox.value}"] .linklist-link`).innerHTML,
        });
      });

      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 = `?delete_link&lf_linkdate=${ids.join('+')}&token=${token.value}`;
      }
    });
  }

  /**
   * 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 xhr = new XMLHttpRequest();
      xhr.open('POST', '?do=changetag');
      xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
      xhr.onload = () => {
        if (xhr.status !== 200) {
          alert(`An error occurred. Return code: ${xhr.status}`);
          location.reload();
        } else {
          block.setAttribute('data-tag', totag);
          input.setAttribute('name', totag);
          input.setAttribute('value', totag);
          findParent(input, 'div', { class: 'rename-tag-form' }).style.display = 'none';
          block.querySelector('a.tag-link').innerHTML = htmlEntities(totag);
          block.querySelector('a.tag-link').setAttribute('href', `?searchtags=${encodeURIComponent(totag)}`);
          block.querySelector('a.rename-tag').setAttribute('href', `?do=changetag&fromtag=${encodeURIComponent(totag)}`);

          // Refresh awesomplete values
          existingTags = existingTags.map(tag => (tag === fromtag ? totag : tag));
          awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
        }
      };
      xhr.send(`renametag=1&fromtag=${encodeURIComponent(fromtag)}&totag=${encodeURIComponent(totag)}&token=${refreshedToken}`);
      refreshToken();
    });
  });

  // 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 refreshedToken = document.getElementById('token').value;

      if (confirm(`Are you sure you want to delete the tag "${tag}"?`)) {
        const xhr = new XMLHttpRequest();
        xhr.open('POST', '?do=changetag');
        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        xhr.onload = () => {
          block.remove();
        };
        xhr.send(encodeURI(`deletetag=1&fromtag=${tag}&token=${refreshedToken}`));
        refreshToken();

        existingTags = existingTags.filter(tagItem => tagItem !== tag);
        awesomepletes = updateAwesompleteList('.rename-tag-input', existingTags, awesomepletes);
      }
    });
  });

  const autocompleteFields = document.querySelectorAll('input[data-multiple]');
  [...autocompleteFields].forEach((autocompleteField) => {
    awesomepletes.push(createAwesompleteInstance(autocompleteField));
  });
})();