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

   1 "use strict";
   2 var DropZone = require('dropzone');
   3 var markdown = require('marked');
   4
   5 var toggleSwitchTemplate = require('./components/toggle-switch.html');
   6 var imagePickerTemplate = require('./components/image-picker.html');
   7 var dropZoneTemplate = require('./components/drop-zone.html');
   8
   9 module.exports = function (ngApp, events) {
  10
  11     /**
  12      * Toggle Switches
  13      * Has basic on/off functionality.
  14      * Use string values of 'true' & 'false' to dictate the current state.
  15      */
  16     ngApp.directive('toggleSwitch', function () {
  17         return {
  18             restrict: 'A',
  19             template: toggleSwitchTemplate,
  20             scope: true,
  21             link: function (scope, element, attrs) {
  22                 scope.name = attrs.name;
  23                 scope.value = attrs.value;
  24                 scope.isActive = scope.value == true && scope.value != 'false';
  25                 scope.value = (scope.value == true && scope.value != 'false') ? 'true' : 'false';
  26
  27                 scope.switch = function () {
  28                     scope.isActive = !scope.isActive;
  29                     scope.value = scope.isActive ? 'true' : 'false';
  30                 }
  31
  32             }
  33         };
  34     });
  35
  36
  37     /**
  38      * Image Picker
  39      * Is a simple front-end interface that connects to an ImageManager if present.
  40      */
  41     ngApp.directive('imagePicker', ['$http', 'imageManagerService', function ($http, imageManagerService) {
  42         return {
  43             restrict: 'E',
  44             template: imagePickerTemplate,
  45             scope: {
  46                 name: '@',
  47                 resizeHeight: '@',
  48                 resizeWidth: '@',
  49                 resizeCrop: '@',
  50                 showRemove: '=',
  51                 currentImage: '@',
  52                 currentId: '@',
  53                 defaultImage: '@',
  54                 imageClass: '@'
  55             },
  56             link: function (scope, element, attrs) {
  57                 var usingIds = typeof scope.currentId !== 'undefined' || scope.currentId === 'false';
  58                 scope.image = scope.currentImage;
  59                 scope.value = scope.currentImage || '';
  60                 if (usingIds) scope.value = scope.currentId;
  61
  62                 function setImage(imageModel, imageUrl) {
  63                     scope.image = imageUrl;
  64                     scope.value = usingIds ? imageModel.id : imageUrl;
  65                 }
  66
  67                 scope.reset = function () {
  68                     setImage({id: 0}, scope.defaultImage);
  69                 };
  70
  71                 scope.remove = function () {
  72                     scope.image = 'none';
  73                     scope.value = 'none';
  74                 };
  75
  76                 scope.showImageManager = function () {
  77                     imageManagerService.show((image) => {
  78                         scope.updateImageFromModel(image);
  79                     });
  80                 };
  81
  82                 scope.updateImageFromModel = function (model) {
  83                     var isResized = scope.resizeWidth && scope.resizeHeight;
  84
  85                     if (!isResized) {
  86                         scope.$apply(() => {
  87                             setImage(model, model.url);
  88                         });
  89                         return;
  90                     }
  91
  92                     var cropped = scope.resizeCrop ? 'true' : 'false';
  93                     var requestString = '/images/thumb/' + model.id + '/' + scope.resizeWidth + '/' + scope.resizeHeight + '/' + cropped;
  94                     $http.get(requestString).then((response) => {
  95                         setImage(model, response.data.url);
  96                     });
  97                 };
  98
  99             }
 100         };
 101     }]);
 102
 103     /**
 104      * DropZone
 105      * Used for uploading images
 106      */
 107     ngApp.directive('dropZone', [function () {
 108         return {
 109             restrict: 'E',
 110             template: dropZoneTemplate,
 111             scope: {
 112                 uploadUrl: '@',
 113                 eventSuccess: '=',
 114                 eventError: '=',
 115                 uploadedTo: '@'
 116             },
 117             link: function (scope, element, attrs) {
 118                 var dropZone = new DropZone(element[0].querySelector('.dropzone-container'), {
 119                     url: scope.uploadUrl,
 120                     init: function () {
 121                         var dz = this;
 122                         dz.on('sending', function (file, xhr, data) {
 123                             var token = window.document.querySelector('meta[name=token]').getAttribute('content');
 124                             data.append('_token', token);
 125                             var uploadedTo = typeof scope.uploadedTo === 'undefined' ? 0 : scope.uploadedTo;
 126                             data.append('uploaded_to', uploadedTo);
 127                         });
 128                         if (typeof scope.eventSuccess !== 'undefined') dz.on('success', scope.eventSuccess);
 129                         dz.on('success', function (file, data) {
 130                             $(file.previewElement).fadeOut(400, function () {
 131                                 dz.removeFile(file);
 132                             });
 133                         });
 134                         if (typeof scope.eventError !== 'undefined') dz.on('error', scope.eventError);
 135                         dz.on('error', function (file, errorMessage, xhr) {
 136                             console.log(errorMessage);
 137                             console.log(xhr);
 138                             function setMessage(message) {
 139                                 $(file.previewElement).find('[data-dz-errormessage]').text(message);
 140                             }
 141
 142                             if (xhr.status === 413) setMessage('The server does not allow uploads of this size. Please try a smaller file.');
 143                             if (errorMessage.file) setMessage(errorMessage.file[0]);
 144
 145                         });
 146                     }
 147                 });
 148             }
 149         };
 150     }]);
 151
 152     /**
 153      * Dropdown
 154      * Provides some simple logic to create small dropdown menus
 155      */
 156     ngApp.directive('dropdown', [function () {
 157         return {
 158             restrict: 'A',
 159             link: function (scope, element, attrs) {
 160                 var menu = element.find('ul');
 161                 element.find('[dropdown-toggle]').on('click', function () {
 162                     menu.show().addClass('anim menuIn');
 163                     element.mouseleave(function () {
 164                         menu.hide();
 165                         menu.removeClass('anim menuIn');
 166                     });
 167                 });
 168             }
 169         };
 170     }]);
 171
 172     /**
 173      * TinyMCE
 174      * An angular wrapper around the tinyMCE editor.
 175      */
 176     ngApp.directive('tinymce', ['$timeout', function ($timeout) {
 177         return {
 178             restrict: 'A',
 179             scope: {
 180                 tinymce: '=',
 181                 mceModel: '=',
 182                 mceChange: '='
 183             },
 184             link: function (scope, element, attrs) {
 185
 186                 function tinyMceSetup(editor) {
 187                     editor.on('ExecCommand change NodeChange ObjectResized', (e) => {
 188                         var content = editor.getContent();
 189                         $timeout(() => {
 190                             scope.mceModel = content;
 191                         });
 192                         scope.mceChange(content);
 193                     });
 194
 195                     editor.on('keydown', (event) => {
 196                         scope.$emit('editor-keydown', event);
 197                     });
 198
 199                     editor.on('init', (e) => {
 200                         scope.mceModel = editor.getContent();
 201                     });
 202
 203                     scope.$on('html-update', (event, value) => {
 204                         editor.setContent(value);
 205                         editor.selection.select(editor.getBody(), true);
 206                         editor.selection.collapse(false);
 207                         scope.mceModel = editor.getContent();
 208                     });
 209                 }
 210
 211                 scope.tinymce.extraSetups.push(tinyMceSetup);
 212
 213                 // Custom tinyMCE plugins
 214                 tinymce.PluginManager.add('customhr', function (editor) {
 215                     editor.addCommand('InsertHorizontalRule', function () {
 216                         var hrElem = document.createElement('hr');
 217                         var cNode = editor.selection.getNode();
 218                         var parentNode = cNode.parentNode;
 219                         parentNode.insertBefore(hrElem, cNode);
 220                     });
 221
 222                     editor.addButton('hr', {
 223                         icon: 'hr',
 224                         tooltip: 'Horizontal line',
 225                         cmd: 'InsertHorizontalRule'
 226                     });
 227
 228                     editor.addMenuItem('hr', {
 229                         icon: 'hr',
 230                         text: 'Horizontal line',
 231                         cmd: 'InsertHorizontalRule',
 232                         context: 'insert'
 233                     });
 234                 });
 235
 236                 tinymce.init(scope.tinymce);
 237             }
 238         }
 239     }]);
 240
 241     /**
 242      * Markdown input
 243      * Handles the logic for just the editor input field.
 244      */
 245     ngApp.directive('markdownInput', ['$timeout', function ($timeout) {
 246         return {
 247             restrict: 'A',
 248             scope: {
 249                 mdModel: '=',
 250                 mdChange: '='
 251             },
 252             link: function (scope, element, attrs) {
 253
 254                 // Set initial model content
 255                 var content = element.val();
 256                 scope.mdModel = content;
 257                 scope.mdChange(markdown(content));
 258
 259                 element.on('change input', (e) => {
 260                     content = element.val();
 261                     $timeout(() => {
 262                         scope.mdModel = content;
 263                         scope.mdChange(markdown(content));
 264                     });
 265                 });
 266
 267                 scope.$on('markdown-update', (event, value) => {
 268                     element.val(value);
 269                     scope.mdModel = value;
 270                     scope.mdChange(markdown(value));
 271                 });
 272
 273             }
 274         }
 275     }]);
 276
 277     /**
 278      * Markdown Editor
 279      * Handles all functionality of the markdown editor.
 280      */
 281     ngApp.directive('markdownEditor', ['$timeout', function ($timeout) {
 282         return {
 283             restrict: 'A',
 284             link: function (scope, element, attrs) {
 285
 286                 // Elements
 287                 const input = element.find('textarea[markdown-input]');
 288                 const display = element.find('.markdown-display').first();
 289                 const insertImage = element.find('button[data-action="insertImage"]');
 290
 291                 let currentCaretPos = 0;
 292
 293                 input.blur(event => {
 294                     currentCaretPos = input[0].selectionStart;
 295                 });
 296
 297                 // Scroll sync
 298                 let inputScrollHeight,
 299                     inputHeight,
 300                     displayScrollHeight,
 301                     displayHeight;
 302
 303                 function setScrollHeights() {
 304                     inputScrollHeight = input[0].scrollHeight;
 305                     inputHeight = input.height();
 306                     displayScrollHeight = display[0].scrollHeight;
 307                     displayHeight = display.height();
 308                 }
 309
 310                 setTimeout(() => {
 311                     setScrollHeights();
 312                 }, 200);
 313                 window.addEventListener('resize', setScrollHeights);
 314                 let scrollDebounceTime = 800;
 315                 let lastScroll = 0;
 316                 input.on('scroll', event => {
 317                     let now = Date.now();
 318                     if (now - lastScroll > scrollDebounceTime) {
 319                         setScrollHeights()
 320                     }
 321                     let scrollPercent = (input.scrollTop() / (inputScrollHeight - inputHeight));
 322                     let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent;
 323                     display.scrollTop(displayScrollY);
 324                     lastScroll = now;
 325                 });
 326
 327                 // Editor key-presses
 328                 input.keydown(event => {
 329                     // Insert image shortcut
 330                     if (event.which === 73 && event.ctrlKey && event.shiftKey) {
 331                         event.preventDefault();
 332                         var caretPos = input[0].selectionStart;
 333                         var currentContent = input.val();
 334                         var mdImageText = "![](http://)";
 335                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 336                         input.focus();
 337                         input[0].selectionStart = caretPos + ("![](".length);
 338                         input[0].selectionEnd = caretPos + ('![](http://'.length);
 339                         return;
 340                     }
 341                     // Pass key presses to controller via event
 342                     scope.$emit('editor-keydown', event);
 343                 });
 344
 345                 // Insert image from image manager
 346                 insertImage.click(event => {
 347                     window.ImageManager.showExternal(image => {
 348                         var caretPos = currentCaretPos;
 349                         var currentContent = input.val();
 350                         var mdImageText = "![" + image.name + "](" + image.url + ")";
 351                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 352                         input.change();
 353                     });
 354                 });
 355
 356             }
 357         }
 358     }]);
 359
 360     /**
 361      * Page Editor Toolbox
 362      * Controls all functionality for the sliding toolbox
 363      * on the page edit view.
 364      */
 365     ngApp.directive('toolbox', [function () {
 366         return {
 367             restrict: 'A',
 368             link: function (scope, elem, attrs) {
 369
 370                 // Get common elements
 371                 const $buttons = elem.find('[tab-button]');
 372                 const $content = elem.find('[tab-content]');
 373                 const $toggle = elem.find('[toolbox-toggle]');
 374
 375                 // Handle toolbox toggle click
 376                 $toggle.click((e) => {
 377                     elem.toggleClass('open');
 378                 });
 379
 380                 // Set an active tab/content by name
 381                 function setActive(tabName, openToolbox) {
 382                     $buttons.removeClass('active');
 383                     $content.hide();
 384                     $buttons.filter(`[tab-button="${tabName}"]`).addClass('active');
 385                     $content.filter(`[tab-content="${tabName}"]`).show();
 386                     if (openToolbox) elem.addClass('open');
 387                 }
 388
 389                 // Set the first tab content active on load
 390                 setActive($content.first().attr('tab-content'), false);
 391
 392                 // Handle tab button click
 393                 $buttons.click(function (e) {
 394                     let name = $(this).attr('tab-button');
 395                     setActive(name, true);
 396                 });
 397             }
 398         }
 399     }]);
 400
 401     /**
 402      * Tag Autosuggestions
 403      * Listens to child inputs and provides autosuggestions depending on field type
 404      * and input. Suggestions provided by server.
 405      */
 406     ngApp.directive('tagAutosuggestions', ['$http', function ($http) {
 407         return {
 408             restrict: 'A',
 409             link: function (scope, elem, attrs) {
 410
 411                 // Local storage for quick caching.
 412                 const localCache = {};
 413
 414                 // Create suggestion element
 415                 const suggestionBox = document.createElement('ul');
 416                 suggestionBox.className = 'suggestion-box';
 417                 suggestionBox.style.position = 'absolute';
 418                 suggestionBox.style.display = 'none';
 419                 const $suggestionBox = $(suggestionBox);
 420
 421                 // General state tracking
 422                 let isShowing = false;
 423                 let currentInput = false;
 424                 let active = 0;
 425
 426                 // Listen to input events on autosuggest fields
 427                 elem.on('input focus', '[autosuggest]', function (event) {
 428                     let $input = $(this);
 429                     let val = $input.val();
 430                     let url = $input.attr('autosuggest');
 431                     let type = $input.attr('autosuggest-type');
 432
 433                     // Add name param to request if for a value
 434                     if (type.toLowerCase() === 'value') {
 435                         let $nameInput = $input.closest('tr').find('[autosuggest-type="name"]').first();
 436                         let nameVal = $nameInput.val();
 437                         if (nameVal !== '') {
 438                             url += '?name=' + encodeURIComponent(nameVal);
 439                         }
 440                     }
 441
 442                     let suggestionPromise = getSuggestions(val.slice(0, 3), url);
 443                     suggestionPromise.then(suggestions => {
 444                         if (val.length === 0) {
 445                             displaySuggestions($input, suggestions.slice(0, 6));
 446                         } else  {
 447                             suggestions = suggestions.filter(item => {
 448                                 return item.toLowerCase().indexOf(val.toLowerCase()) !== -1;
 449                             }).slice(0, 4);
 450                             displaySuggestions($input, suggestions);
 451                         }
 452                     });
 453                 });
 454
 455                 // Hide autosuggestions when input loses focus.
 456                 // Slight delay to allow clicks.
 457                 let lastFocusTime = 0;
 458                 elem.on('blur', '[autosuggest]', function (event) {
 459                     let startTime = Date.now();
 460                     setTimeout(() => {
 461                         if (lastFocusTime < startTime) {
 462                             $suggestionBox.hide();
 463                             isShowing = false;
 464                         }
 465                     }, 200)
 466                 });
 467                 elem.on('focus', '[autosuggest]', function (event) {
 468                     lastFocusTime = Date.now();
 469                 });
 470
 471                 elem.on('keydown', '[autosuggest]', function (event) {
 472                     if (!isShowing) return;
 473
 474                     let suggestionElems = suggestionBox.childNodes;
 475                     let suggestCount = suggestionElems.length;
 476
 477                     // Down arrow
 478                     if (event.keyCode === 40) {
 479                         let newActive = (active === suggestCount - 1) ? 0 : active + 1;
 480                         changeActiveTo(newActive, suggestionElems);
 481                     }
 482                     // Up arrow
 483                     else if (event.keyCode === 38) {
 484                         let newActive = (active === 0) ? suggestCount - 1 : active - 1;
 485                         changeActiveTo(newActive, suggestionElems);
 486                     }
 487                     // Enter or tab key
 488                     else if ((event.keyCode === 13 || event.keyCode === 9) && !event.shiftKey) {
 489                         let text = suggestionElems[active].textContent;
 490                         currentInput[0].value = text;
 491                         currentInput.focus();
 492                         $suggestionBox.hide();
 493                         isShowing = false;
 494                         if (event.keyCode === 13) {
 495                             event.preventDefault();
 496                             return false;
 497                         }
 498                     }
 499                 });
 500
 501                 // Change the active suggestion to the given index
 502                 function changeActiveTo(index, suggestionElems) {
 503                     suggestionElems[active].className = '';
 504                     active = index;
 505                     suggestionElems[active].className = 'active';
 506                 }
 507
 508                 // Display suggestions on a field
 509                 let prevSuggestions = [];
 510
 511                 function displaySuggestions($input, suggestions) {
 512
 513                     // Hide if no suggestions
 514                     if (suggestions.length === 0) {
 515                         $suggestionBox.hide();
 516                         isShowing = false;
 517                         prevSuggestions = suggestions;
 518                         return;
 519                     }
 520
 521                     // Otherwise show and attach to input
 522                     if (!isShowing) {
 523                         $suggestionBox.show();
 524                         isShowing = true;
 525                     }
 526                     if ($input !== currentInput) {
 527                         $suggestionBox.detach();
 528                         $input.after($suggestionBox);
 529                         currentInput = $input;
 530                     }
 531
 532                     // Return if no change
 533                     if (prevSuggestions.join() === suggestions.join()) {
 534                         prevSuggestions = suggestions;
 535                         return;
 536                     }
 537
 538                     // Build suggestions
 539                     $suggestionBox[0].innerHTML = '';
 540                     for (let i = 0; i < suggestions.length; i++) {
 541                         var suggestion = document.createElement('li');
 542                         suggestion.textContent = suggestions[i];
 543                         suggestion.onclick = suggestionClick;
 544                         if (i === 0) {
 545                             suggestion.className = 'active'
 546                             active = 0;
 547                         }
 548                         ;
 549                         $suggestionBox[0].appendChild(suggestion);
 550                     }
 551
 552                     prevSuggestions = suggestions;
 553                 }
 554
 555                 // Suggestion click event
 556                 function suggestionClick(event) {
 557                     let text = this.textContent;
 558                     currentInput[0].value = text;
 559                     currentInput.focus();
 560                     $suggestionBox.hide();
 561                     isShowing = false;
 562                 };
 563
 564                 // Get suggestions & cache
 565                 function getSuggestions(input, url) {
 566                     let hasQuery = url.indexOf('?') !== -1;
 567                     let searchUrl = url + (hasQuery ? '&' : '?') + 'search=' + encodeURIComponent(input);
 568
 569                     // Get from local cache if exists
 570                     if (typeof localCache[searchUrl] !== 'undefined') {
 571                         return new Promise((resolve, reject) => {
 572                             resolve(localCache[searchUrl]);
 573                         });
 574                     }
 575
 576                     return $http.get(searchUrl).then(response => {
 577                         localCache[searchUrl] = response.data;
 578                         return response.data;
 579                     });
 580                 }
 581
 582             }
 583         }
 584     }]);
 585
 586
 587     ngApp.directive('entitySelector', ['$http', '$sce', function ($http, $sce) {
 588         return {
 589             restrict: 'A',
 590             scope: true,
 591             link: function (scope, element, attrs) {
 592                 scope.loading = true;
 593                 scope.entityResults = false;
 594                 scope.search = '';
 595
 596                 // Add input for forms
 597                 const input = element.find('[entity-selector-input]').first();
 598
 599                 // Listen to entity item clicks
 600                 element.on('click', '.entity-list a', function(event) {
 601                     event.preventDefault();
 602                     event.stopPropagation();
 603                     let item = $(this).closest('[data-entity-type]');
 604                     itemSelect(item);
 605                 });
 606                 element.on('click', '[data-entity-type]', function(event) {
 607                     itemSelect($(this));
 608                 });
 609
 610                 // Select entity action
 611                 function itemSelect(item) {
 612                     let entityType = item.attr('data-entity-type');
 613                     let entityId = item.attr('data-entity-id');
 614                     let isSelected = !item.hasClass('selected');
 615                     element.find('.selected').removeClass('selected').removeClass('primary-background');
 616                     if (isSelected) item.addClass('selected').addClass('primary-background');
 617                     let newVal = isSelected ? `${entityType}:${entityId}` : '';
 618                     input.val(newVal);
 619                 }
 620
 621                 // Get search url with correct types
 622                 function getSearchUrl() {
 623                     let types = (attrs.entityTypes) ? encodeURIComponent(attrs.entityTypes) : encodeURIComponent('page,book,chapter');
 624                     return `/ajax/search/entities?types=${types}`;
 625                 }
 626
 627                 // Get initial contents
 628                 $http.get(getSearchUrl()).then(resp => {
 629                     scope.entityResults = $sce.trustAsHtml(resp.data);
 630                     scope.loading = false;
 631                 });
 632
 633                 // Search when typing
 634                 scope.searchEntities = function() {
 635                     scope.loading = true;
 636                     input.val('');
 637                     let url = getSearchUrl() + '&term=' + encodeURIComponent(scope.search);
 638                     $http.get(url).then(resp => {
 639                         scope.entityResults = $sce.trustAsHtml(resp.data);
 640                         scope.loading = false;
 641                     });
 642                 };
 643             }
 644         };
 645     }]);
 646 };
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