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