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                 const menu = element.find('ul');
 161                 element.find('[dropdown-toggle]').on('click', function () {
 162                     menu.show().addClass('anim menuIn');
 163                     let inputs = menu.find('input');
 164                     let hasInput = inputs.length > 0;
 165                     if (hasInput) {
 166                         inputs.first().focus();
 167                         element.on('keypress', 'input', event => {
 168                             if (event.keyCode === 13) {
 169                                 event.preventDefault();
 170                                 menu.hide();
 171                                 menu.removeClass('anim menuIn');
 172                                 return false;
 173                             }
 174                         });
 175                     }
 176                     element.mouseleave(function () {
 177                         menu.hide();
 178                         menu.removeClass('anim menuIn');
 179                     });
 180                 });
 181             }
 182         };
 183     }]);
 184
 185     /**
 186      * TinyMCE
 187      * An angular wrapper around the tinyMCE editor.
 188      */
 189     ngApp.directive('tinymce', ['$timeout', function ($timeout) {
 190         return {
 191             restrict: 'A',
 192             scope: {
 193                 tinymce: '=',
 194                 mceModel: '=',
 195                 mceChange: '='
 196             },
 197             link: function (scope, element, attrs) {
 198
 199                 function tinyMceSetup(editor) {
 200                     editor.on('ExecCommand change NodeChange ObjectResized', (e) => {
 201                         var content = editor.getContent();
 202                         $timeout(() => {
 203                             scope.mceModel = content;
 204                         });
 205                         scope.mceChange(content);
 206                     });
 207
 208                     editor.on('keydown', (event) => {
 209                         scope.$emit('editor-keydown', event);
 210                     });
 211
 212                     editor.on('init', (e) => {
 213                         scope.mceModel = editor.getContent();
 214                     });
 215
 216                     scope.$on('html-update', (event, value) => {
 217                         editor.setContent(value);
 218                         editor.selection.select(editor.getBody(), true);
 219                         editor.selection.collapse(false);
 220                         scope.mceModel = editor.getContent();
 221                     });
 222                 }
 223
 224                 scope.tinymce.extraSetups.push(tinyMceSetup);
 225
 226                 // Custom tinyMCE plugins
 227                 tinymce.PluginManager.add('customhr', function (editor) {
 228                     editor.addCommand('InsertHorizontalRule', function () {
 229                         var hrElem = document.createElement('hr');
 230                         var cNode = editor.selection.getNode();
 231                         var parentNode = cNode.parentNode;
 232                         parentNode.insertBefore(hrElem, cNode);
 233                     });
 234
 235                     editor.addButton('hr', {
 236                         icon: 'hr',
 237                         tooltip: 'Horizontal line',
 238                         cmd: 'InsertHorizontalRule'
 239                     });
 240
 241                     editor.addMenuItem('hr', {
 242                         icon: 'hr',
 243                         text: 'Horizontal line',
 244                         cmd: 'InsertHorizontalRule',
 245                         context: 'insert'
 246                     });
 247                 });
 248
 249                 tinymce.init(scope.tinymce);
 250             }
 251         }
 252     }]);
 253
 254     /**
 255      * Markdown input
 256      * Handles the logic for just the editor input field.
 257      */
 258     ngApp.directive('markdownInput', ['$timeout', function ($timeout) {
 259         return {
 260             restrict: 'A',
 261             scope: {
 262                 mdModel: '=',
 263                 mdChange: '='
 264             },
 265             link: function (scope, element, attrs) {
 266
 267                 // Set initial model content
 268                 var content = element.val();
 269                 scope.mdModel = content;
 270                 scope.mdChange(markdown(content));
 271
 272                 element.on('change input', (e) => {
 273                     content = element.val();
 274                     $timeout(() => {
 275                         scope.mdModel = content;
 276                         scope.mdChange(markdown(content));
 277                     });
 278                 });
 279
 280                 scope.$on('markdown-update', (event, value) => {
 281                     element.val(value);
 282                     scope.mdModel = value;
 283                     scope.mdChange(markdown(value));
 284                 });
 285
 286             }
 287         }
 288     }]);
 289
 290     /**
 291      * Markdown Editor
 292      * Handles all functionality of the markdown editor.
 293      */
 294     ngApp.directive('markdownEditor', ['$timeout', function ($timeout) {
 295         return {
 296             restrict: 'A',
 297             link: function (scope, element, attrs) {
 298
 299                 // Elements
 300                 const input = element.find('textarea[markdown-input]');
 301                 const display = element.find('.markdown-display').first();
 302                 const insertImage = element.find('button[data-action="insertImage"]');
 303
 304                 let currentCaretPos = 0;
 305
 306                 input.blur(event => {
 307                     currentCaretPos = input[0].selectionStart;
 308                 });
 309
 310                 // Scroll sync
 311                 let inputScrollHeight,
 312                     inputHeight,
 313                     displayScrollHeight,
 314                     displayHeight;
 315
 316                 function setScrollHeights() {
 317                     inputScrollHeight = input[0].scrollHeight;
 318                     inputHeight = input.height();
 319                     displayScrollHeight = display[0].scrollHeight;
 320                     displayHeight = display.height();
 321                 }
 322
 323                 setTimeout(() => {
 324                     setScrollHeights();
 325                 }, 200);
 326                 window.addEventListener('resize', setScrollHeights);
 327                 let scrollDebounceTime = 800;
 328                 let lastScroll = 0;
 329                 input.on('scroll', event => {
 330                     let now = Date.now();
 331                     if (now - lastScroll > scrollDebounceTime) {
 332                         setScrollHeights()
 333                     }
 334                     let scrollPercent = (input.scrollTop() / (inputScrollHeight - inputHeight));
 335                     let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent;
 336                     display.scrollTop(displayScrollY);
 337                     lastScroll = now;
 338                 });
 339
 340                 // Editor key-presses
 341                 input.keydown(event => {
 342                     // Insert image shortcut
 343                     if (event.which === 73 && event.ctrlKey && event.shiftKey) {
 344                         event.preventDefault();
 345                         var caretPos = input[0].selectionStart;
 346                         var currentContent = input.val();
 347                         var mdImageText = "![](http://)";
 348                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 349                         input.focus();
 350                         input[0].selectionStart = caretPos + ("![](".length);
 351                         input[0].selectionEnd = caretPos + ('![](http://'.length);
 352                         return;
 353                     }
 354                     // Pass key presses to controller via event
 355                     scope.$emit('editor-keydown', event);
 356                 });
 357
 358                 // Insert image from image manager
 359                 insertImage.click(event => {
 360                     window.ImageManager.showExternal(image => {
 361                         var caretPos = currentCaretPos;
 362                         var currentContent = input.val();
 363                         var mdImageText = "![" + image.name + "](" + image.url + ")";
 364                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 365                         input.change();
 366                     });
 367                 });
 368
 369             }
 370         }
 371     }]);
 372
 373     /**
 374      * Page Editor Toolbox
 375      * Controls all functionality for the sliding toolbox
 376      * on the page edit view.
 377      */
 378     ngApp.directive('toolbox', [function () {
 379         return {
 380             restrict: 'A',
 381             link: function (scope, elem, attrs) {
 382
 383                 // Get common elements
 384                 const $buttons = elem.find('[tab-button]');
 385                 const $content = elem.find('[tab-content]');
 386                 const $toggle = elem.find('[toolbox-toggle]');
 387
 388                 // Handle toolbox toggle click
 389                 $toggle.click((e) => {
 390                     elem.toggleClass('open');
 391                 });
 392
 393                 // Set an active tab/content by name
 394                 function setActive(tabName, openToolbox) {
 395                     $buttons.removeClass('active');
 396                     $content.hide();
 397                     $buttons.filter(`[tab-button="${tabName}"]`).addClass('active');
 398                     $content.filter(`[tab-content="${tabName}"]`).show();
 399                     if (openToolbox) elem.addClass('open');
 400                 }
 401
 402                 // Set the first tab content active on load
 403                 setActive($content.first().attr('tab-content'), false);
 404
 405                 // Handle tab button click
 406                 $buttons.click(function (e) {
 407                     let name = $(this).attr('tab-button');
 408                     setActive(name, true);
 409                 });
 410             }
 411         }
 412     }]);
 413
 414     /**
 415      * Tag Autosuggestions
 416      * Listens to child inputs and provides autosuggestions depending on field type
 417      * and input. Suggestions provided by server.
 418      */
 419     ngApp.directive('tagAutosuggestions', ['$http', function ($http) {
 420         return {
 421             restrict: 'A',
 422             link: function (scope, elem, attrs) {
 423
 424                 // Local storage for quick caching.
 425                 const localCache = {};
 426
 427                 // Create suggestion element
 428                 const suggestionBox = document.createElement('ul');
 429                 suggestionBox.className = 'suggestion-box';
 430                 suggestionBox.style.position = 'absolute';
 431                 suggestionBox.style.display = 'none';
 432                 const $suggestionBox = $(suggestionBox);
 433
 434                 // General state tracking
 435                 let isShowing = false;
 436                 let currentInput = false;
 437                 let active = 0;
 438
 439                 // Listen to input events on autosuggest fields
 440                 elem.on('input focus', '[autosuggest]', function (event) {
 441                     let $input = $(this);
 442                     let val = $input.val();
 443                     let url = $input.attr('autosuggest');
 444                     let type = $input.attr('autosuggest-type');
 445
 446                     // Add name param to request if for a value
 447                     if (type.toLowerCase() === 'value') {
 448                         let $nameInput = $input.closest('tr').find('[autosuggest-type="name"]').first();
 449                         let nameVal = $nameInput.val();
 450                         if (nameVal !== '') {
 451                             url += '?name=' + encodeURIComponent(nameVal);
 452                         }
 453                     }
 454
 455                     let suggestionPromise = getSuggestions(val.slice(0, 3), url);
 456                     suggestionPromise.then(suggestions => {
 457                         if (val.length === 0) {
 458                             displaySuggestions($input, suggestions.slice(0, 6));
 459                         } else  {
 460                             suggestions = suggestions.filter(item => {
 461                                 return item.toLowerCase().indexOf(val.toLowerCase()) !== -1;
 462                             }).slice(0, 4);
 463                             displaySuggestions($input, suggestions);
 464                         }
 465                     });
 466                 });
 467
 468                 // Hide autosuggestions when input loses focus.
 469                 // Slight delay to allow clicks.
 470                 let lastFocusTime = 0;
 471                 elem.on('blur', '[autosuggest]', function (event) {
 472                     let startTime = Date.now();
 473                     setTimeout(() => {
 474                         if (lastFocusTime < startTime) {
 475                             $suggestionBox.hide();
 476                             isShowing = false;
 477                         }
 478                     }, 200)
 479                 });
 480                 elem.on('focus', '[autosuggest]', function (event) {
 481                     lastFocusTime = Date.now();
 482                 });
 483
 484                 elem.on('keydown', '[autosuggest]', function (event) {
 485                     if (!isShowing) return;
 486
 487                     let suggestionElems = suggestionBox.childNodes;
 488                     let suggestCount = suggestionElems.length;
 489
 490                     // Down arrow
 491                     if (event.keyCode === 40) {
 492                         let newActive = (active === suggestCount - 1) ? 0 : active + 1;
 493                         changeActiveTo(newActive, suggestionElems);
 494                     }
 495                     // Up arrow
 496                     else if (event.keyCode === 38) {
 497                         let newActive = (active === 0) ? suggestCount - 1 : active - 1;
 498                         changeActiveTo(newActive, suggestionElems);
 499                     }
 500                     // Enter or tab key
 501                     else if ((event.keyCode === 13 || event.keyCode === 9) && !event.shiftKey) {
 502                         let text = suggestionElems[active].textContent;
 503                         currentInput[0].value = text;
 504                         currentInput.focus();
 505                         $suggestionBox.hide();
 506                         isShowing = false;
 507                         if (event.keyCode === 13) {
 508                             event.preventDefault();
 509                             return false;
 510                         }
 511                     }
 512                 });
 513
 514                 // Change the active suggestion to the given index
 515                 function changeActiveTo(index, suggestionElems) {
 516                     suggestionElems[active].className = '';
 517                     active = index;
 518                     suggestionElems[active].className = 'active';
 519                 }
 520
 521                 // Display suggestions on a field
 522                 let prevSuggestions = [];
 523
 524                 function displaySuggestions($input, suggestions) {
 525
 526                     // Hide if no suggestions
 527                     if (suggestions.length === 0) {
 528                         $suggestionBox.hide();
 529                         isShowing = false;
 530                         prevSuggestions = suggestions;
 531                         return;
 532                     }
 533
 534                     // Otherwise show and attach to input
 535                     if (!isShowing) {
 536                         $suggestionBox.show();
 537                         isShowing = true;
 538                     }
 539                     if ($input !== currentInput) {
 540                         $suggestionBox.detach();
 541                         $input.after($suggestionBox);
 542                         currentInput = $input;
 543                     }
 544
 545                     // Return if no change
 546                     if (prevSuggestions.join() === suggestions.join()) {
 547                         prevSuggestions = suggestions;
 548                         return;
 549                     }
 550
 551                     // Build suggestions
 552                     $suggestionBox[0].innerHTML = '';
 553                     for (let i = 0; i < suggestions.length; i++) {
 554                         var suggestion = document.createElement('li');
 555                         suggestion.textContent = suggestions[i];
 556                         suggestion.onclick = suggestionClick;
 557                         if (i === 0) {
 558                             suggestion.className = 'active'
 559                             active = 0;
 560                         }
 561                         ;
 562                         $suggestionBox[0].appendChild(suggestion);
 563                     }
 564
 565                     prevSuggestions = suggestions;
 566                 }
 567
 568                 // Suggestion click event
 569                 function suggestionClick(event) {
 570                     let text = this.textContent;
 571                     currentInput[0].value = text;
 572                     currentInput.focus();
 573                     $suggestionBox.hide();
 574                     isShowing = false;
 575                 };
 576
 577                 // Get suggestions & cache
 578                 function getSuggestions(input, url) {
 579                     let hasQuery = url.indexOf('?') !== -1;
 580                     let searchUrl = url + (hasQuery ? '&' : '?') + 'search=' + encodeURIComponent(input);
 581
 582                     // Get from local cache if exists
 583                     if (typeof localCache[searchUrl] !== 'undefined') {
 584                         return new Promise((resolve, reject) => {
 585                             resolve(localCache[searchUrl]);
 586                         });
 587                     }
 588
 589                     return $http.get(searchUrl).then(response => {
 590                         localCache[searchUrl] = response.data;
 591                         return response.data;
 592                     });
 593                 }
 594
 595             }
 596         }
 597     }]);
 598
 599
 600     ngApp.directive('entitySelector', ['$http', '$sce', function ($http, $sce) {
 601         return {
 602             restrict: 'A',
 603             scope: true,
 604             link: function (scope, element, attrs) {
 605                 scope.loading = true;
 606                 scope.entityResults = false;
 607                 scope.search = '';
 608
 609                 // Add input for forms
 610                 const input = element.find('[entity-selector-input]').first();
 611
 612                 // Listen to entity item clicks
 613                 element.on('click', '.entity-list a', function(event) {
 614                     event.preventDefault();
 615                     event.stopPropagation();
 616                     let item = $(this).closest('[data-entity-type]');
 617                     itemSelect(item);
 618                 });
 619                 element.on('click', '[data-entity-type]', function(event) {
 620                     itemSelect($(this));
 621                 });
 622
 623                 // Select entity action
 624                 function itemSelect(item) {
 625                     let entityType = item.attr('data-entity-type');
 626                     let entityId = item.attr('data-entity-id');
 627                     let isSelected = !item.hasClass('selected');
 628                     element.find('.selected').removeClass('selected').removeClass('primary-background');
 629                     if (isSelected) item.addClass('selected').addClass('primary-background');
 630                     let newVal = isSelected ? `${entityType}:${entityId}` : '';
 631                     input.val(newVal);
 632                 }
 633
 634                 // Get search url with correct types
 635                 function getSearchUrl() {
 636                     let types = (attrs.entityTypes) ? encodeURIComponent(attrs.entityTypes) : encodeURIComponent('page,book,chapter');
 637                     return `/ajax/search/entities?types=${types}`;
 638                 }
 639
 640                 // Get initial contents
 641                 $http.get(getSearchUrl()).then(resp => {
 642                     scope.entityResults = $sce.trustAsHtml(resp.data);
 643                     scope.loading = false;
 644                 });
 645
 646                 // Search when typing
 647                 scope.searchEntities = function() {
 648                     scope.loading = true;
 649                     input.val('');
 650                     let url = getSearchUrl() + '&term=' + encodeURIComponent(scope.search);
 651                     $http.get(url).then(resp => {
 652                         scope.entityResults = $sce.trustAsHtml(resp.data);
 653                         scope.loading = false;
 654                     });
 655                 };
 656             }
 657         };
 658     }]);
 659 };
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