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                                 $(file.previewElement).find('[data-dz-errormessage]').text(message);
 140                             }
 141
 142                             if (xhr.status === 413) setMessage('The server does not allow uploads of this size. Please try a smaller file.');
 143                             if (errorMessage.file) setMessage(errorMessage.file[0]);
 144
 145                         });
 146                     }
 147                 });
 148             }
 149         };
 150     }]);
 151
 152
 153     ngApp.directive('dropdown', [function () {
 154         return {
 155             restrict: 'A',
 156             link: function (scope, element, attrs) {
 157                 var menu = element.find('ul');
 158                 element.find('[dropdown-toggle]').on('click', function () {
 159                     menu.show().addClass('anim menuIn');
 160                     element.mouseleave(function () {
 161                         menu.hide();
 162                         menu.removeClass('anim menuIn');
 163                     });
 164                 });
 165             }
 166         };
 167     }]);
 168
 169     ngApp.directive('tinymce', ['$timeout', function($timeout) {
 170         return {
 171             restrict: 'A',
 172             scope: {
 173                 tinymce: '=',
 174                 mceModel: '=',
 175                 mceChange: '='
 176             },
 177             link: function (scope, element, attrs) {
 178
 179                 function tinyMceSetup(editor) {
 180                     editor.on('ExecCommand change NodeChange ObjectResized', (e) => {
 181                         var content = editor.getContent();
 182                         $timeout(() => {
 183                             scope.mceModel = content;
 184                         });
 185                         scope.mceChange(content);
 186                     });
 187
 188                     editor.on('init', (e) => {
 189                         scope.mceModel = editor.getContent();
 190                     });
 191
 192                     scope.$on('html-update', (event, value) => {
 193                         editor.setContent(value);
 194                         editor.selection.select(editor.getBody(), true);
 195                         editor.selection.collapse(false);
 196                         scope.mceModel = editor.getContent();
 197                     });
 198                 }
 199
 200                 scope.tinymce.extraSetups.push(tinyMceSetup);
 201
 202                 // Custom tinyMCE plugins
 203                 tinymce.PluginManager.add('customhr', function(editor) {
 204                     editor.addCommand('InsertHorizontalRule', function() {
 205                         var hrElem = document.createElement('hr');
 206                         var cNode = editor.selection.getNode();
 207                         var parentNode = cNode.parentNode;
 208                         parentNode.insertBefore(hrElem, cNode);
 209                     });
 210
 211                     editor.addButton('hr', {
 212                         icon: 'hr',
 213                         tooltip: 'Horizontal line',
 214                         cmd: 'InsertHorizontalRule'
 215                     });
 216
 217                     editor.addMenuItem('hr', {
 218                         icon: 'hr',
 219                         text: 'Horizontal line',
 220                         cmd: 'InsertHorizontalRule',
 221                         context: 'insert'
 222                     });
 223                 });
 224
 225                 tinymce.init(scope.tinymce);
 226             }
 227         }
 228     }]);
 229
 230     ngApp.directive('markdownInput', ['$timeout', function($timeout) {
 231         return {
 232             restrict: 'A',
 233             scope: {
 234                 mdModel: '=',
 235                 mdChange: '='
 236             },
 237             link: function (scope, element, attrs) {
 238
 239                 // Set initial model content
 240                 var content = element.val();
 241                 scope.mdModel = content;
 242                 scope.mdChange(markdown(content));
 243
 244                 element.on('change input', (e) => {
 245                     content = element.val();
 246                     $timeout(() => {
 247                         scope.mdModel = content;
 248                         scope.mdChange(markdown(content));
 249                     });
 250                 });
 251
 252                 scope.$on('markdown-update', (event, value) => {
 253                     element.val(value);
 254                     scope.mdModel= value;
 255                     scope.mdChange(markdown(value));
 256                 });
 257
 258             }
 259         }
 260     }]);
 261
 262     ngApp.directive('markdownEditor', ['$timeout', function($timeout) {
 263         return {
 264             restrict: 'A',
 265             link: function (scope, element, attrs) {
 266
 267                 // Elements
 268                 const input = element.find('textarea[markdown-input]');
 269                 const display = element.find('.markdown-display').first();
 270                 const insertImage = element.find('button[data-action="insertImage"]');
 271
 272                 let currentCaretPos = 0;
 273
 274                 input.blur(event => {
 275                     currentCaretPos = input[0].selectionStart;
 276                 });
 277
 278                 // Scroll sync
 279                 let inputScrollHeight,
 280                     inputHeight,
 281                     displayScrollHeight,
 282                     displayHeight;
 283
 284                 function setScrollHeights() {
 285                     inputScrollHeight = input[0].scrollHeight;
 286                     inputHeight = input.height();
 287                     displayScrollHeight = display[0].scrollHeight;
 288                     displayHeight = display.height();
 289                 }
 290
 291                 setTimeout(() => {
 292                     setScrollHeights();
 293                 }, 200);
 294                 window.addEventListener('resize', setScrollHeights);
 295                 let scrollDebounceTime = 800;
 296                 let lastScroll = 0;
 297                 input.on('scroll', event => {
 298                     let now = Date.now();
 299                     if (now - lastScroll > scrollDebounceTime) {
 300                         setScrollHeights()
 301                     }
 302                     let scrollPercent = (input.scrollTop() / (inputScrollHeight-inputHeight));
 303                     let displayScrollY = (displayScrollHeight - displayHeight) * scrollPercent;
 304                     display.scrollTop(displayScrollY);
 305                     lastScroll = now;
 306                 });
 307
 308                 // Insert image shortcut
 309                 input.keydown(event => {
 310                     if (event.which === 73 && event.ctrlKey && event.shiftKey) {
 311                         event.preventDefault();
 312                         var caretPos = input[0].selectionStart;
 313                         var currentContent = input.val();
 314                         var mdImageText = "![](http://)";
 315                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 316                         input.focus();
 317                         input[0].selectionStart = caretPos + ("![](".length);
 318                         input[0].selectionEnd = caretPos + ('![](http://'.length);
 319                     }
 320                 });
 321
 322                 // Insert image from image manager
 323                 insertImage.click(event => {
 324                     window.ImageManager.showExternal(image => {
 325                         var caretPos = currentCaretPos;
 326                         var currentContent = input.val();
 327                         var mdImageText = "![" + image.name + "](" + image.url + ")";
 328                         input.val(currentContent.substring(0, caretPos) + mdImageText + currentContent.substring(caretPos));
 329                         input.change();
 330                     });
 331                 });
 332
 333             }
 334         }
 335     }]);
 336
 337     ngApp.directive('toolbox', [function() {
 338         return {
 339             restrict: 'A',
 340             link: function(scope, elem, attrs) {
 341
 342                 // Get common elements
 343                 const $buttons = elem.find('[tab-button]');
 344                 const $content = elem.find('[tab-content]');
 345                 const $toggle = elem.find('[toolbox-toggle]');
 346
 347                 // Handle toolbox toggle click
 348                 $toggle.click((e) => {
 349                     elem.toggleClass('open');
 350                 });
 351
 352                 // Set an active tab/content by name
 353                 function setActive(tabName, openToolbox) {
 354                     $buttons.removeClass('active');
 355                     $content.hide();
 356                     $buttons.filter(`[tab-button="${tabName}"]`).addClass('active');
 357                     $content.filter(`[tab-content="${tabName}"]`).show();
 358                     if (openToolbox) elem.addClass('open');
 359                 }
 360
 361                 // Set the first tab content active on load
 362                 setActive($content.first().attr('tab-content'), false);
 363
 364                 // Handle tab button click
 365                 $buttons.click(function(e) {
 366                     let name = $(this).attr('tab-button');
 367                     setActive(name, true);
 368                 });
 369             }
 370         }
 371     }]);
 372
 373     ngApp.directive('autosuggestions', ['$http', function($http) {
 374         return {
 375             restrict: 'A',
 376             link: function(scope, elem, attrs) {
 377
 378                 // Local storage for quick caching.
 379                 const localCache = {};
 380
 381                 // Create suggestion element
 382                 const suggestionBox = document.createElement('ul');
 383                 suggestionBox.className = 'suggestion-box';
 384                 suggestionBox.style.position = 'absolute';
 385                 suggestionBox.style.display = 'none';
 386                 const $suggestionBox = $(suggestionBox);
 387
 388                 // General state tracking
 389                 let isShowing = false;
 390                 let currentInput = false;
 391                 let active = 0;
 392
 393                 // Listen to input events on autosuggest fields
 394                 elem.on('input', '[autosuggest]', function(event) {
 395                     let $input = $(this);
 396                     let val = $input.val();
 397                     let url = $input.attr('autosuggest');
 398                     // No suggestions until at least 3 chars
 399                     if (val.length < 3) {
 400                         if (isShowing) {
 401                             $suggestionBox.hide();
 402                             isShowing = false;
 403                         }
 404                         return;
 405                     };
 406
 407                     let suggestionPromise = getSuggestions(val.slice(0, 3), url);
 408                     suggestionPromise.then((suggestions) => {
 409                        if (val.length > 2) {
 410                            suggestions = suggestions.filter((item) => {
 411                                return item.toLowerCase().indexOf(val.toLowerCase()) !== -1;
 412                            }).slice(0, 4);
 413                            displaySuggestions($input, suggestions);
 414                        }
 415                     });
 416                 });
 417
 418                 // Hide autosuggestions when input loses focus.
 419                 // Slight delay to allow clicks.
 420                 elem.on('blur', '[autosuggest]', function(event) {
 421                     setTimeout(() => {
 422                         $suggestionBox.hide();
 423                         isShowing = false;
 424                     }, 200)
 425                 });
 426
 427                 elem.on('keydown', '[autosuggest]', function (event) {
 428                     if (!isShowing) return;
 429
 430                     let suggestionElems = suggestionBox.childNodes;
 431                     let suggestCount = suggestionElems.length;
 432
 433                     // Down arrow
 434                     if (event.keyCode === 40) {
 435                         let newActive = (active === suggestCount-1) ? 0 : active + 1;
 436                         changeActiveTo(newActive, suggestionElems);
 437                     }
 438                     // Up arrow
 439                     else if (event.keyCode === 38) {
 440                         let newActive = (active === 0) ? suggestCount-1 : active - 1;
 441                         changeActiveTo(newActive, suggestionElems);
 442                     }
 443                     // Enter key
 444                     else if (event.keyCode === 13) {
 445                         let text = suggestionElems[active].textContent;
 446                         currentInput[0].value = text;
 447                         currentInput.focus();
 448                         $suggestionBox.hide();
 449                         isShowing = false;
 450                         event.preventDefault();
 451                         return false;
 452                     }
 453                 });
 454
 455                 // Change the active suggestion to the given index
 456                 function changeActiveTo(index, suggestionElems) {
 457                     suggestionElems[active].className = '';
 458                     active = index;
 459                     suggestionElems[active].className = 'active';
 460                 }
 461
 462                 // Display suggestions on a field
 463                 let prevSuggestions = [];
 464                 function displaySuggestions($input, suggestions) {
 465
 466                     // Hide if no suggestions
 467                     if (suggestions.length === 0) {
 468                         $suggestionBox.hide();
 469                         isShowing = false;
 470                         prevSuggestions = suggestions;
 471                         return;
 472                     }
 473
 474                     // Otherwise show and attach to input
 475                     if (!isShowing) {
 476                         $suggestionBox.show();
 477                         isShowing = true;
 478                     }
 479                     if ($input !== currentInput) {
 480                         $suggestionBox.detach();
 481                         $input.after($suggestionBox);
 482                         currentInput = $input;
 483                     }
 484
 485                     // Return if no change
 486                     if (prevSuggestions.join() === suggestions.join()) {
 487                         prevSuggestions = suggestions;
 488                         return;
 489                     }
 490
 491                     // Build suggestions
 492                     $suggestionBox[0].innerHTML = '';
 493                     for (let i = 0; i < suggestions.length; i++) {
 494                         var suggestion = document.createElement('li');
 495                         suggestion.textContent = suggestions[i];
 496                         suggestion.onclick = suggestionClick;
 497                         if (i === 0) {
 498                             suggestion.className = 'active'
 499                             active = 0;
 500                         };
 501                         $suggestionBox[0].appendChild(suggestion);
 502                     }
 503
 504                     prevSuggestions = suggestions;
 505                 }
 506
 507                 // Suggestion click event
 508                 function suggestionClick(event) {
 509                     let text = this.textContent;
 510                     currentInput[0].value = text;
 511                     currentInput.focus();
 512                     $suggestionBox.hide();
 513                     isShowing = false;
 514                 };
 515
 516                 // Get suggestions & cache
 517                 function getSuggestions(input, url) {
 518                     let searchUrl = url + '?search=' + encodeURIComponent(input);
 519
 520                     // Get from local cache if exists
 521                     if (localCache[searchUrl]) {
 522                         return new Promise((resolve, reject) => {
 523                             resolve(localCache[input]);
 524                         });
 525                     }
 526
 527                     return $http.get(searchUrl).then((response) => {
 528                         localCache[input] = response.data;
 529                         return response.data;
 530                     });
 531                 }
 532
 533             }
 534         }
 535     }]);
 536 };
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550