BookStack Code Mirror - bookstack/blob - resources/assets/js/directives.js

   1 "use strict";
   2 import DropZone from "dropzone";
   3 import markdown from "marked";
   4
   5 export default function (ngApp, events) {
   6
   7     /**
   8      * Common tab controls using simple jQuery functions.
   9      */
  10     ngApp.directive('tabContainer', function() {
  11         return {
  12             restrict: 'A',
  13             link: function (scope, element, attrs) {
  14                 const $content = element.find('[tab-content]');
  15                 const $buttons = element.find('[tab-button]');
  16
  17                 if (attrs.tabContainer) {
  18                     let initial = attrs.tabContainer;
  19                     $buttons.filter(`[tab-button="${initial}"]`).addClass('selected');
  20                     $content.hide().filter(`[tab-content="${initial}"]`).show();
  21                 } else {
  22                     $content.hide().first().show();
  23                     $buttons.first().addClass('selected');
  24                 }
  25
  26                 $buttons.click(function() {
  27                     let clickedTab = $(this);
  28                     $buttons.removeClass('selected');
  29                     $content.hide();
  30                     let name = clickedTab.addClass('selected').attr('tab-button');
  31                     $content.filter(`[tab-content="${name}"]`).show();
  32                 });
  33             }
  34         };
  35     });
  36
  37     /**
  38      * Sub form component to allow inner-form sections to act like their own forms.
  39      */
  40     ngApp.directive('subForm', function() {
  41         return {
  42             restrict: 'A',
  43             link: function (scope, element, attrs) {
  44                 element.on('keypress', e => {
  45                     if (e.keyCode === 13) {
  46                         submitEvent(e);
  47                     }
  48                 });
  49
  50                 element.find('button[type="submit"]').click(submitEvent);
  51
  52                 function submitEvent(e) {
  53                     e.preventDefault();
  54                     if (attrs.subForm) scope.$eval(attrs.subForm);
  55                 }
  56             }
  57         };
  58     });
  59
  60     /**
  61      * DropZone
  62      * Used for uploading images
  63      */
  64     ngApp.directive('dropZone', [function () {
  65         return {
  66             restrict: 'E',
  67             template: `
  68             <div class="dropzone-container">
  69                 <div class="dz-message">{{message}}</div>
  70             </div>
  71             `,
  72             scope: {
  73                 uploadUrl: '@',
  74                 eventSuccess: '=',
  75                 eventError: '=',
  76                 uploadedTo: '@',
  77             },
  78             link: function (scope, element, attrs) {
  79                 scope.message = attrs.message;
  80                 if (attrs.placeholder) element[0].querySelector('.dz-message').textContent = attrs.placeholder;
  81                 let dropZone = new DropZone(element[0].querySelector('.dropzone-container'), {
  82                     url: scope.uploadUrl,
  83                     init: function () {
  84                         let dz = this;
  85                         dz.on('sending', function (file, xhr, data) {
  86                             let token = window.document.querySelector('meta[name=token]').getAttribute('content');
  87                             data.append('_token', token);
  88                             let uploadedTo = typeof scope.uploadedTo === 'undefined' ? 0 : scope.uploadedTo;
  89                             data.append('uploaded_to', uploadedTo);
  90                         });
  91                         if (typeof scope.eventSuccess !== 'undefined') dz.on('success', scope.eventSuccess);
  92                         dz.on('success', function (file, data) {
  93                             $(file.previewElement).fadeOut(400, function () {
  94                                 dz.removeFile(file);
  95                             });
  96                         });
  97                         if (typeof scope.eventError !== 'undefined') dz.on('error', scope.eventError);
  98                         dz.on('error', function (file, errorMessage, xhr) {
  99                             console.log(errorMessage);
 100                             console.log(xhr);
 101                             function setMessage(message) {
 102                                 $(file.previewElement).find('[data-dz-errormessage]').text(message);
 103                             }
 104
 105                             if (xhr.status === 413) setMessage(trans('errors.server_upload_limit'));
 106                             if (errorMessage.file) setMessage(errorMessage.file[0]);
 107
 108                         });
 109                     }
 110                 });
 111             }
 112         };
 113     }]);
 114
 115     /**
 116      * Dropdown
 117      * Provides some simple logic to create small dropdown menus
 118      */
 119     ngApp.directive('dropdown', [function () {
 120         return {
 121             restrict: 'A',
 122             link: function (scope, element, attrs) {
 123                 const menu = element.find('ul');
 124                 element.find('[dropdown-toggle]').on('click', function () {
 125                     menu.show().addClass('anim menuIn');
 126                     let inputs = menu.find('input');
 127                     let hasInput = inputs.length > 0;
 128                     if (hasInput) {
 129                         inputs.first().focus();
 130                         element.on('keypress', 'input', event => {
 131                             if (event.keyCode === 13) {
 132                                 event.preventDefault();
 133                                 menu.hide();
 134                                 menu.removeClass('anim menuIn');
 135                                 return false;
 136                             }
 137                         });
 138                     }
 139                     element.mouseleave(function () {
 140                         menu.hide();
 141                         menu.removeClass('anim menuIn');
 142                     });
 143                 });
 144             }
 145         };
 146     }]);
 147
 148     /**
 149      * TinyMCE
 150      * An angular wrapper around the tinyMCE editor.
 151      */
 152     ngApp.directive('tinymce', ['$timeout', function ($timeout) {
 153         return {
 154             restrict: 'A',
 155             scope: {
 156                 tinymce: '=',
 157                 mceModel: '=',
 158                 mceChange: '='
 159             },
 160             link: function (scope, element, attrs) {
 161
 162                 function tinyMceSetup(editor) {
 163                     editor.on('ExecCommand change NodeChange ObjectResized', (e) => {
 164                         let content = editor.getContent();
 165                         $timeout(() => {
 166                             scope.mceModel = content;
 167                         });
 168                         scope.mceChange(content);
 169                     });
 170
 171                     editor.on('keydown', (event) => {
 172                         scope.$emit('editor-keydown', event);
 173                     });
 174
 175                     editor.on('init', (e) => {
 176                         scope.mceModel = editor.getContent();
 177                     });
 178
 179                     scope.$on('html-update', (event, value) => {
 180                         editor.setContent(value);
 181                         editor.selection.select(editor.getBody(), true);
 182                         editor.selection.collapse(false);
 183                         scope.mceModel = editor.getContent();
 184                     });
 185                 }
 186
 187                 scope.tinymce.extraSetups.push(tinyMceSetup);
 188
 189                 // Custom tinyMCE plugins
 190                 tinymce.PluginManager.add('customhr', function (editor) {
 191                     editor.addCommand('InsertHorizontalRule', function () {
 192                         let hrElem = document.createElement('hr');
 193                         let cNode = editor.selection.getNode();
 194                         let parentNode = cNode.parentNode;
 195                         parentNode.insertBefore(hrElem, cNode);
 196                     });
 197
 198                     editor.addButton('hr', {
 199                         icon: 'hr',
 200                         tooltip: 'Horizontal line',
 201                         cmd: 'InsertHorizontalRule'
 202                     });
 203
 204                     editor.addMenuItem('hr', {
 205                         icon: 'hr',
 206                         text: 'Horizontal line',
 207                         cmd: 'InsertHorizontalRule',
 208                         context: 'insert'
 209                     });
 210                 });
 211
 212                 tinymce.init(scope.tinymce);
 213             }
 214         }
 215     }]);
 216
 217     /**
 218      * Markdown input
 219      * Handles the logic for just the editor input field.
 220      */
 221     ngApp.directive('markdownInput', ['$timeout', function ($timeout) {
 222         return {
 223             restrict: 'A',
 224             scope: {
 225                 mdModel: '=',
 226                 mdChange: '='
 227             },
 228             link: function (scope, element, attrs) {
 229
 230                 // Set initial model content
 231                 element = element.find('textarea').first();
 232                 let content = element.val();
 233                 scope.mdModel = content;
 234                 scope.mdChange(markdown(content));
 235
 236                 element.on('change input', (event) => {
 237                     content = element.val();
 238                     $timeout(() => {
 239                         scope.mdModel = content;
 240                         scope.mdChange(markdown(content));
 241                     });
 242                 });
 243
 244                 scope.$on('markdown-update', (event, value) => {
 245                     element.val(value);
 246                     scope.mdModel = value;
 247                     scope.mdChange(markdown(value));
 248                 });
 249
 250             }
 251         }
 252     }]);
 253
 254     /**
 255      * Markdown Editor
 256      * Handles all functionality of the markdown editor.
 257      */
 258     ngApp.directive('markdownEditor', ['$timeout', function ($timeout) {
 259         return {
 260             restrict: 'A',
 261             link: function (scope, element, attrs) {
 262
 263                 // Elements
 264                 const $input = element.find('[markdown-input] textarea').first();
 265                 const $display = element.find('.markdown-display').first();
 266                 const $insertImage = element.find('button[data-action="insertImage"]');
 267                 const $insertEntityLink = element.find('button[data-action="insertEntityLink"]');
 268
 269                 // Prevent markdown display link click redirect
 270                 $display.on('click', 'a', function(event) {
 271                     event.preventDefault();
 272                     window.open(this.getAttribute('href'));
 273                 });
 274
 275                 let currentCaretPos = 0;
 276
 277                 $input.blur(event => {
 278                     currentCaretPos = $input[0].selectionStart;
 279                 });
 280
 281                 // Scroll sync
 282                 let inputScrollHeight,
 283                     inputHeight,
 284                     displayScrollHeight,
 285                     displayHeight;
 286
 287                 function setScrollHeights() {
 288                     inputScrollHeight = $input[0].scrollHeight;
 289                     inputHeight = $input.height();
 290                     displayScrollHeight = $display[0].scrollHeight;
 291                     displayHeight = $display.height();
 292                 }
 293
 294                 setTimeout(() => {
 295                     setScrollHeights();
 296                 }, 200);
 297                 window.addEventListener('resize', setScrollHeights);
 298                 let scrollDebounceTime = 800;
 299                 let lastScroll = 0;
 300                 $input.on('scroll', event => {
 301                     let now = Date.now();
 302                     if (now - lastScroll > scrollDebounceTime) {
 303                         setScrollHeights()
 304                     }
 305                     let scrollPercent = ($input.scrollTop() / (inputScrollHeight - inputHeight));
 306                     let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent;
 307                     $display.scrollTop(displayScrollY);
 308                     lastScroll = now;
 309                 });
 310
 311                 // Editor key-presses
 312                 $input.keydown(event => {
 313                     // Insert image shortcut
 314                     if (event.which === 73 && event.ctrlKey && event.shiftKey) {
 315                         event.preventDefault();
 316                         let caretPos = $input[0].selectionStart;
 317                         let currentContent = $input.val();
 318                         const mdImageText = "![](http://)";
 319                         $input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 320                         $input.focus();
 321                         $input[0].selectionStart = caretPos + ("![](".length);
 322                         $input[0].selectionEnd = caretPos + ('![](http://'.length);
 323                         return;
 324                     }
 325
 326                     // Insert entity link shortcut
 327                     if (event.which === 75 && event.ctrlKey && event.shiftKey) {
 328                         showLinkSelector();
 329                         return;
 330                     }
 331
 332                     // Pass key presses to controller via event
 333                     scope.$emit('editor-keydown', event);
 334                 });
 335
 336                 // Insert image from image manager
 337                 $insertImage.click(event => {
 338                     window.ImageManager.showExternal(image => {
 339                         let caretPos = currentCaretPos;
 340                         let currentContent = $input.val();
 341                         let mdImageText = "![" + image.name + "](" + image.thumbs.display + ")";
 342                         $input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 343                         $input.change();
 344                     });
 345                 });
 346
 347                 function showLinkSelector() {
 348                     window.showEntityLinkSelector((entity) => {
 349                         let selectionStart = currentCaretPos;
 350                         let selectionEnd = $input[0].selectionEnd;
 351                         let textSelected = (selectionEnd !== selectionStart);
 352                         let currentContent = $input.val();
 353
 354                         if (textSelected) {
 355                             let selectedText = currentContent.substring(selectionStart, selectionEnd);
 356                             let linkText = `[${selectedText}](${entity.link})`;
 357                             $input.val(currentContent.substring(0, selectionStart) + linkText + currentContent.substring(selectionEnd));
 358                         } else {
 359                             let linkText = ` [${entity.name}](${entity.link}) `;
 360                             $input.val(currentContent.substring(0, selectionStart) + linkText + currentContent.substring(selectionStart))
 361                         }
 362                         $input.change();
 363                     });
 364                 }
 365                 $insertEntityLink.click(showLinkSelector);
 366
 367                 // Upload and insert image on paste
 368                 function editorPaste(e) {
 369                     e = e.originalEvent;
 370                     if (!e.clipboardData) return
 371                     let items = e.clipboardData.items;
 372                     if (!items) return;
 373                     for (let i = 0; i < items.length; i++) {
 374                         uploadImage(items[i].getAsFile());
 375                     }
 376                 }
 377
 378                 $input.on('paste', editorPaste);
 379
 380                 // Handle image drop, Uploads images to BookStack.
 381                 function handleImageDrop(event) {
 382                     event.stopPropagation();
 383                     event.preventDefault();
 384                     let files = event.originalEvent.dataTransfer.files;
 385                     for (let i = 0; i < files.length; i++) {
 386                         uploadImage(files[i]);
 387                     }
 388                 }
 389
 390                 $input.on('drop', handleImageDrop);
 391
 392                 // Handle image upload and add image into markdown content
 393                 function uploadImage(file) {
 394                     if (file.type.indexOf('image') !== 0) return;
 395                     let formData = new FormData();
 396                     let ext = 'png';
 397                     let xhr = new XMLHttpRequest();
 398
 399                     if (file.name) {
 400                         let fileNameMatches = file.name.match(/\.(.+)$/);
 401                         if (fileNameMatches) {
 402                             ext = fileNameMatches[1];
 403                         }
 404                     }
 405
 406                     // Insert image into markdown
 407                     let id = "image-" + Math.random().toString(16).slice(2);
 408                     let selectStart = $input[0].selectionStart;
 409                     let selectEnd = $input[0].selectionEnd;
 410                     let content = $input[0].value;
 411                     let selectText = content.substring(selectStart, selectEnd);
 412                     let placeholderImage = window.baseUrl(`/loading.gif#upload${id}`);
 413                     let innerContent = ((selectEnd > selectStart) ? `![${selectText}]` : '![]') + `(${placeholderImage})`;
 414                     $input[0].value = content.substring(0, selectStart) +  innerContent + content.substring(selectEnd);
 415
 416                     $input.focus();
 417                     $input[0].selectionStart = selectStart;
 418                     $input[0].selectionEnd = selectStart;
 419
 420                     let remoteFilename = "image-" + Date.now() + "." + ext;
 421                     formData.append('file', file, remoteFilename);
 422                     formData.append('_token', document.querySelector('meta[name="token"]').getAttribute('content'));
 423
 424                     xhr.open('POST', window.baseUrl('/images/gallery/upload'));
 425                     xhr.onload = function () {
 426                         let selectStart = $input[0].selectionStart;
 427                         if (xhr.status === 200 || xhr.status === 201) {
 428                             let result = JSON.parse(xhr.responseText);
 429                             $input[0].value = $input[0].value.replace(placeholderImage, result.thumbs.display);
 430                             $input.change();
 431                         } else {
 432                             console.log(trans('errors.image_upload_error'));
 433                             console.log(xhr.responseText);
 434                             $input[0].value = $input[0].value.replace(innerContent, '');
 435                             $input.change();
 436                         }
 437                         $input.focus();
 438                         $input[0].selectionStart = selectStart;
 439                         $input[0].selectionEnd = selectStart;
 440                     };
 441                     xhr.send(formData);
 442                 }
 443
 444             }
 445         }
 446     }]);
 447
 448     /**
 449      * Page Editor Toolbox
 450      * Controls all functionality for the sliding toolbox
 451      * on the page edit view.
 452      */
 453     ngApp.directive('toolbox', [function () {
 454         return {
 455             restrict: 'A',
 456             link: function (scope, elem, attrs) {
 457
 458                 // Get common elements
 459                 const $buttons = elem.find('[toolbox-tab-button]');
 460                 const $content = elem.find('[toolbox-tab-content]');
 461                 const $toggle = elem.find('[toolbox-toggle]');
 462
 463                 // Handle toolbox toggle click
 464                 $toggle.click((e) => {
 465                     elem.toggleClass('open');
 466                 });
 467
 468                 // Set an active tab/content by name
 469                 function setActive(tabName, openToolbox) {
 470                     $buttons.removeClass('active');
 471                     $content.hide();
 472                     $buttons.filter(`[toolbox-tab-button="${tabName}"]`).addClass('active');
 473                     $content.filter(`[toolbox-tab-content="${tabName}"]`).show();
 474                     if (openToolbox) elem.addClass('open');
 475                 }
 476
 477                 // Set the first tab content active on load
 478                 setActive($content.first().attr('toolbox-tab-content'), false);
 479
 480                 // Handle tab button click
 481                 $buttons.click(function (e) {
 482                     let name = $(this).attr('toolbox-tab-button');
 483                     setActive(name, true);
 484                 });
 485             }
 486         }
 487     }]);
 488
 489     /**
 490      * Tag Autosuggestions
 491      * Listens to child inputs and provides autosuggestions depending on field type
 492      * and input. Suggestions provided by server.
 493      */
 494     ngApp.directive('tagAutosuggestions', ['$http', function ($http) {
 495         return {
 496             restrict: 'A',
 497             link: function (scope, elem, attrs) {
 498
 499                 // Local storage for quick caching.
 500                 const localCache = {};
 501
 502                 // Create suggestion element
 503                 const suggestionBox = document.createElement('ul');
 504                 suggestionBox.className = 'suggestion-box';
 505                 suggestionBox.style.position = 'absolute';
 506                 suggestionBox.style.display = 'none';
 507                 const $suggestionBox = $(suggestionBox);
 508
 509                 // General state tracking
 510                 let isShowing = false;
 511                 let currentInput = false;
 512                 let active = 0;
 513
 514                 // Listen to input events on autosuggest fields
 515                 elem.on('input focus', '[autosuggest]', function (event) {
 516                     let $input = $(this);
 517                     let val = $input.val();
 518                     let url = $input.attr('autosuggest');
 519                     let type = $input.attr('autosuggest-type');
 520
 521                     // Add name param to request if for a value
 522                     if (type.toLowerCase() === 'value') {
 523                         let $nameInput = $input.closest('tr').find('[autosuggest-type="name"]').first();
 524                         let nameVal = $nameInput.val();
 525                         if (nameVal !== '') {
 526                             url += '?name=' + encodeURIComponent(nameVal);
 527                         }
 528                     }
 529
 530                     let suggestionPromise = getSuggestions(val.slice(0, 3), url);
 531                     suggestionPromise.then(suggestions => {
 532                         if (val.length === 0) {
 533                             displaySuggestions($input, suggestions.slice(0, 6));
 534                         } else  {
 535                             suggestions = suggestions.filter(item => {
 536                                 return item.toLowerCase().indexOf(val.toLowerCase()) !== -1;
 537                             }).slice(0, 4);
 538                             displaySuggestions($input, suggestions);
 539                         }
 540                     });
 541                 });
 542
 543                 // Hide autosuggestions when input loses focus.
 544                 // Slight delay to allow clicks.
 545                 let lastFocusTime = 0;
 546                 elem.on('blur', '[autosuggest]', function (event) {
 547                     let startTime = Date.now();
 548                     setTimeout(() => {
 549                         if (lastFocusTime < startTime) {
 550                             $suggestionBox.hide();
 551                             isShowing = false;
 552                         }
 553                     }, 200)
 554                 });
 555                 elem.on('focus', '[autosuggest]', function (event) {
 556                     lastFocusTime = Date.now();
 557                 });
 558
 559                 elem.on('keydown', '[autosuggest]', function (event) {
 560                     if (!isShowing) return;
 561
 562                     let suggestionElems = suggestionBox.childNodes;
 563                     let suggestCount = suggestionElems.length;
 564
 565                     // Down arrow
 566                     if (event.keyCode === 40) {
 567                         let newActive = (active === suggestCount - 1) ? 0 : active + 1;
 568                         changeActiveTo(newActive, suggestionElems);
 569                     }
 570                     // Up arrow
 571                     else if (event.keyCode === 38) {
 572                         let newActive = (active === 0) ? suggestCount - 1 : active - 1;
 573                         changeActiveTo(newActive, suggestionElems);
 574                     }
 575                     // Enter or tab key
 576                     else if ((event.keyCode === 13 || event.keyCode === 9) && !event.shiftKey) {
 577                         currentInput[0].value = suggestionElems[active].textContent;
 578                         currentInput.focus();
 579                         $suggestionBox.hide();
 580                         isShowing = false;
 581                         if (event.keyCode === 13) {
 582                             event.preventDefault();
 583                             return false;
 584                         }
 585                     }
 586                 });
 587
 588                 // Change the active suggestion to the given index
 589                 function changeActiveTo(index, suggestionElems) {
 590                     suggestionElems[active].className = '';
 591                     active = index;
 592                     suggestionElems[active].className = 'active';
 593                 }
 594
 595                 // Display suggestions on a field
 596                 let prevSuggestions = [];
 597
 598                 function displaySuggestions($input, suggestions) {
 599
 600                     // Hide if no suggestions
 601                     if (suggestions.length === 0) {
 602                         $suggestionBox.hide();
 603                         isShowing = false;
 604                         prevSuggestions = suggestions;
 605                         return;
 606                     }
 607
 608                     // Otherwise show and attach to input
 609                     if (!isShowing) {
 610                         $suggestionBox.show();
 611                         isShowing = true;
 612                     }
 613                     if ($input !== currentInput) {
 614                         $suggestionBox.detach();
 615                         $input.after($suggestionBox);
 616                         currentInput = $input;
 617                     }
 618
 619                     // Return if no change
 620                     if (prevSuggestions.join() === suggestions.join()) {
 621                         prevSuggestions = suggestions;
 622                         return;
 623                     }
 624
 625                     // Build suggestions
 626                     $suggestionBox[0].innerHTML = '';
 627                     for (let i = 0; i < suggestions.length; i++) {
 628                         let suggestion = document.createElement('li');
 629                         suggestion.textContent = suggestions[i];
 630                         suggestion.onclick = suggestionClick;
 631                         if (i === 0) {
 632                             suggestion.className = 'active';
 633                             active = 0;
 634                         }
 635                         $suggestionBox[0].appendChild(suggestion);
 636                     }
 637
 638                     prevSuggestions = suggestions;
 639                 }
 640
 641                 // Suggestion click event
 642                 function suggestionClick(event) {
 643                     currentInput[0].value = this.textContent;
 644                     currentInput.focus();
 645                     $suggestionBox.hide();
 646                     isShowing = false;
 647                 }
 648
 649                 // Get suggestions & cache
 650                 function getSuggestions(input, url) {
 651                     let hasQuery = url.indexOf('?') !== -1;
 652                     let searchUrl = url + (hasQuery ? '&' : '?') + 'search=' + encodeURIComponent(input);
 653
 654                     // Get from local cache if exists
 655                     if (typeof localCache[searchUrl] !== 'undefined') {
 656                         return new Promise((resolve, reject) => {
 657                             resolve(localCache[searchUrl]);
 658                         });
 659                     }
 660
 661                     return $http.get(searchUrl).then(response => {
 662                         localCache[searchUrl] = response.data;
 663                         return response.data;
 664                     });
 665                 }
 666
 667             }
 668         }
 669     }]);
 670
 671     ngApp.directive('entityLinkSelector', [function($http) {
 672         return {
 673             restrict: 'A',
 674             link: function(scope, element, attrs) {
 675
 676                 const selectButton = element.find('.entity-link-selector-confirm');
 677                 let callback = false;
 678                 let entitySelection = null;
 679
 680                 // Handle entity selection change, Stores the selected entity locally
 681                 function entitySelectionChange(entity) {
 682                     entitySelection = entity;
 683                     if (entity === null) {
 684                         selectButton.attr('disabled', 'true');
 685                     } else {
 686                         selectButton.removeAttr('disabled');
 687                     }
 688                 }
 689                 events.listen('entity-select-change', entitySelectionChange);
 690
 691                 // Handle selection confirm button click
 692                 selectButton.click(event => {
 693                     hide();
 694                     if (entitySelection !== null) callback(entitySelection);
 695                 });
 696
 697                 // Show selector interface
 698                 function show() {
 699                     element.fadeIn(240);
 700                 }
 701
 702                 // Hide selector interface
 703                 function hide() {
 704                     element.fadeOut(240);
 705                 }
 706
 707                 // Listen to confirmation of entity selections (doubleclick)
 708                 events.listen('entity-select-confirm', entity => {
 709                     hide();
 710                     callback(entity);
 711                 });
 712
 713                 // Show entity selector, Accessible globally, and store the callback
 714                 window.showEntityLinkSelector = function(passedCallback) {
 715                     show();
 716                     callback = passedCallback;
 717                 };
 718
 719             }
 720         };
 721     }]);
 722
 723
 724     ngApp.directive('entitySelector', ['$http', '$sce', function ($http, $sce) {
 725         return {
 726             restrict: 'A',
 727             scope: true,
 728             link: function (scope, element, attrs) {
 729                 scope.loading = true;
 730                 scope.entityResults = false;
 731                 scope.search = '';
 732
 733                 // Add input for forms
 734                 const input = element.find('[entity-selector-input]').first();
 735
 736                 // Detect double click events
 737                 let lastClick = 0;
 738                 function isDoubleClick() {
 739                     let now = Date.now();
 740                     let answer = now - lastClick < 300;
 741                     lastClick = now;
 742                     return answer;
 743                 }
 744
 745                 // Listen to entity item clicks
 746                 element.on('click', '.entity-list a', function(event) {
 747                     event.preventDefault();
 748                     event.stopPropagation();
 749                     let item = $(this).closest('[data-entity-type]');
 750                     itemSelect(item, isDoubleClick());
 751                 });
 752                 element.on('click', '[data-entity-type]', function(event) {
 753                     itemSelect($(this), isDoubleClick());
 754                 });
 755
 756                 // Select entity action
 757                 function itemSelect(item, doubleClick) {
 758                     let entityType = item.attr('data-entity-type');
 759                     let entityId = item.attr('data-entity-id');
 760                     let isSelected = !item.hasClass('selected') || doubleClick;
 761                     element.find('.selected').removeClass('selected').removeClass('primary-background');
 762                     if (isSelected) item.addClass('selected').addClass('primary-background');
 763                     let newVal = isSelected ? `${entityType}:${entityId}` : '';
 764                     input.val(newVal);
 765
 766                     if (!isSelected) {
 767                         events.emit('entity-select-change', null);
 768                     }
 769
 770                     if (!doubleClick && !isSelected) return;
 771
 772                     let link = item.find('.entity-list-item-link').attr('href');
 773                     let name = item.find('.entity-list-item-name').text();
 774
 775                     if (doubleClick) {
 776                         events.emit('entity-select-confirm', {
 777                             id: Number(entityId),
 778                             name: name,
 779                             link: link
 780                         });
 781                     }
 782
 783                     if (isSelected) {
 784                         events.emit('entity-select-change', {
 785                             id: Number(entityId),
 786                             name: name,
 787                             link: link
 788                         });
 789                     }
 790                 }
 791
 792                 // Get search url with correct types
 793                 function getSearchUrl() {
 794                     let types = (attrs.entityTypes) ? encodeURIComponent(attrs.entityTypes) : encodeURIComponent('page,book,chapter');
 795                     return window.baseUrl(`/ajax/search/entities?types=${types}`);
 796                 }
 797
 798                 // Get initial contents
 799                 $http.get(getSearchUrl()).then(resp => {
 800                     scope.entityResults = $sce.trustAsHtml(resp.data);
 801                     scope.loading = false;
 802                 });
 803
 804                 // Search when typing
 805                 scope.searchEntities = function() {
 806                     scope.loading = true;
 807                     input.val('');
 808                     let url = getSearchUrl() + '&term=' + encodeURIComponent(scope.search);
 809                     $http.get(url).then(resp => {
 810                         scope.entityResults = $sce.trustAsHtml(resp.data);
 811                         scope.loading = false;
 812                     });
 813                 };
 814             }
 815         };
 816     }]);
 817 };