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annotate js/dnd-library.js @ 37:bb510db429c9

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Re-attach behaviors on library reload.
author Franck Deroche <franck@defr.org>
date Fri, 18 Sep 2009 15:14:00 +0200
parents 7ed2ac0cec27
children 9e27e0aca323
rev   line source
eads@16 1 /**
eads@16 2 * Drag and Drop Library For Drupal
eads@16 3 *
eads@16 4 * This builds on the DnD jQuery plugin written to provide drag and drop media
eads@16 5 * handling to Rich Text Editors to consume, display, and attach behavior to
eads@16 6 * a "media library" provided via JSON and implemented for Drupal running
eads@16 7 * the Wysiwyg plugin.
eads@16 8 */
eads@16 9
eads@16 10 /**
eads@16 11 * Extend jQuery a bit
eads@16 12 *
eads@16 13 * We add a selector to look for "empty" elements (empty elements in TinyMCE
eads@17 14 * often have non-breaking spaces and <br /> tags). An exception is required
eads@17 15 * to make this work in IE.
eads@16 16 */
eads@16 17 (function($) {
eads@16 18 // Custom selectors
eads@16 19 $.extend($.expr[":"], {
eads@31 20 'dnd_empty' : function(a, i, m) {
eads@17 21 return !$(a).filter(function(i) {
eads@17 22 return !$(this).is('br');
eads@30 23 }).length && !$.trim(a.textContent || a.innerText||$(a).text() || "");
eads@16 24 }
eads@16 25 });
eads@16 26 }) (jQuery);
eads@16 27
eads@30 28 /**
eads@30 29 * Initialize and load drag and drop library and pass off rendering and
eads@30 30 * behavior attachment.
eads@30 31 */
eads@2 32 Drupal.behaviors.dndLibrary = function(context) {
eads@16 33 $('.dnd-library-wrapper', context).each(function() {
eads@4 34 var $this = $(this);
eads@2 35
eads@4 36 // This is a bad hack to lop off '-dnd-library' from the id to get the editor name
eads@17 37 var $editor = $('#' + this.id.slice(0, -12));
eads@17 38
eads@30 39 // Set up some initial settings for BeautyTips
eads@30 40 var settings = Drupal.settings.dndEnabledLibraries[$editor.get(0).id] = $.extend({
eads@31 41 'btSettings' : {
franck@35 42 'trigger': ['click'],
eads@21 43 'width': 375,
eads@20 44 'spikeLength': 7,
eads@20 45 'spikeGirth': 9,
eads@18 46 'corner-radius' : 3,
eads@20 47 'strokeWidth': 1,
eads@20 48 'fill': '#ffd',
franck@35 49 'strokeStyle': '#555',
franck@35 50 'closeWhenOthersOpen': true
eads@31 51 },
eads@31 52 'libraryHoverIntentSettings' : {
eads@31 53 'interval': 500,
eads@31 54 'timeout' : 0,
eads@31 55 'over': function() {
eads@31 56 var $this = $(this);
eads@31 57 this.btOn();
eads@31 58 // Remove the preview once dragging of any image has commenced
eads@31 59 $('img', $this).bind('drag', function(e) {
eads@31 60 $this.btOff();
eads@31 61 });
eads@31 62 $('img', $this).bind('click', function(e) {
eads@31 63 $this.btOff();
eads@31 64 });
eads@31 65 },
eads@31 66 'out': function() { this.btOff(); }
eads@31 67 }
eads@30 68 }, Drupal.settings.dndEnabledLibraries[$editor.get(0).id]);
eads@24 69
eads@24 70 // Bind Drag and Drop plugin invocation to events emanating from Wysiwyg
eads@24 71 $editor.bind('wysiwygAttach', Drupal.behaviors.dndLibrary.attach_library);
eads@24 72 $editor.bind('wysiwygDetach', Drupal.behaviors.dndLibrary.detach_library);
eads@24 73
eads@30 74 // Set up empty objects to keep track of things
eads@30 75 Drupal.settings.dndEditorRepresentations = {};
eads@30 76 Drupal.settings.dndLibraryPreviews = {};
franck@36 77
franck@36 78 // Clean up the url if needed (this happen in case drupal_add_js is called
franck@36 79 // multiple time for the page)
franck@36 80 if (settings.url instanceof Object) {
franck@36 81 settings.url = settings.url[0];
franck@36 82 }
eads@30 83
eads@31 84 // Initialize the library
eads@30 85 $.getJSON(Drupal.settings.basePath + settings.url, function(data) {
eads@30 86 Drupal.behaviors.dndLibrary.renderLibrary.call($this.get(0), data, $editor);
eads@17 87 });
eads@4 88
eads@4 89 });
eads@4 90 }
eads@2 91
eads@30 92 Drupal.behaviors.dndLibrary.renderLibrary = function(data, editor) {
eads@17 93 $this = $(this);
eads@17 94
eads@30 95 $this.html(data.library);
eads@17 96
eads@30 97 var settings = Drupal.settings.dndEnabledLibraries[editor.get(0).id];
eads@17 98 var params = Drupal.wysiwyg.instances[editor.get(0).id];
eads@30 99
eads@17 100 editor.trigger('wysiwygDetach', params);
eads@17 101 editor.trigger('wysiwygAttach', params);
eads@17 102
eads@17 103 for (editor_id in data.editor_representations) {
eads@17 104 Drupal.settings.dndEditorRepresentations[editor_id] = data.editor_representations[editor_id];
eads@17 105 }
eads@17 106 for (preview_id in data.library_previews) {
eads@17 107 Drupal.settings.dndLibraryPreviews[preview_id] = data.library_previews[preview_id];
eads@17 108 }
eads@19 109
eads@30 110 // Add preview behavior to editor items (thanks, BeautyTips!)
eads@30 111 $('.editor-item', $this).each(function () {
eads@31 112 $(this).bt(Drupal.settings.dndLibraryPreviews[this.id], settings.btSettings);
eads@31 113 $(this).hoverIntent(settings.libraryHoverIntentSettings);
eads@30 114 });
eads@30 115
eads@30 116 // Preload images in editor representations
eads@30 117 var cached = $.data($(editor), 'dnd_preload') || {};
eads@31 118 for (editor_id in Drupal.settings.dndEditorRepresentations) {
eads@30 119 if (!cached[editor_id]) {
eads@30 120 $representation = $(Drupal.settings.dndEditorRepresentations[editor_id].body);
eads@30 121 if ($representation.is('img') && $representation.get(0).src) {
eads@30 122 $representation.attr('src', $representation.get(0).src);
eads@30 123 } else {
eads@30 124 $('img', $representation).each(function() {
eads@31 125 $(this).attr('src', this.src);
eads@30 126 });
eads@30 127 }
eads@30 128 }
eads@30 129 }
eads@31 130 $.data($(editor), 'dnd_preload', cached);
eads@30 131
eads@31 132 $('.pager a', $this).click(function() {
eads@31 133 $.getJSON(this.href, function(data) {
eads@31 134 Drupal.behaviors.dndLibrary.renderLibrary.call($this.get(0), data, $(editor));
eads@31 135 });
eads@31 136 return false;
eads@31 137 });
eads@31 138 $('.view-filters input[type=submit]', $this).click(function() {
franck@32 139 $('.view-filters form', $this).ajaxSubmit({
eads@31 140 'url' : Drupal.settings.basePath + settings.url,
eads@31 141 'dataType' : 'json',
eads@31 142 'success' : function(data) {
eads@31 143 Drupal.behaviors.dndLibrary.renderLibrary.call($this.get(0), data, $(editor));
eads@31 144 }
eads@31 145 });
eads@31 146 return false;
eads@31 147 });
franck@37 148 Drupal.attachBehaviors($this);
eads@17 149 }
eads@17 150
eads@16 151 // Dynamically compose a callback based on the editor name
eads@4 152 Drupal.behaviors.dndLibrary.attach_library = function(e, data) {
eads@17 153 var settings = $.extend({idSelector: Drupal.behaviors.dndLibrary.idSelector}, Drupal.settings.dndEnabledLibraries[data.field]);
eads@4 154 var editor_fn = 'attach_' + data.editor;
eads@4 155 if ($.isFunction(window.Drupal.behaviors.dndLibrary[editor_fn])) {
eads@17 156 window.Drupal.behaviors.dndLibrary[editor_fn](data, settings);
eads@2 157 }
eads@2 158 }
eads@2 159
eads@16 160 // Do garbage collection on detach
eads@31 161 Drupal.behaviors.dndLibrary.detach_library = function(e, data) {}
eads@4 162
eads@16 163 // Basic textareas
eads@16 164 Drupal.behaviors.dndLibrary.attach_none = function(data, settings) {
eads@16 165 settings = $.extend({
eads@16 166 targets: $('#'+ data.field),
eads@25 167 processTextAreaClick: function(clicked, representation_id, e, data) {
eads@25 168 var target = this, $target = $(target);
eads@25 169
eads@25 170 // Update element count
eads@25 171 Drupal.behaviors.dndLibrary.countElements.call(target, representation_id);
eads@25 172
eads@31 173 var snippet = '<p class="dnd-drop-wrapper">' + Drupal.settings.dndEditorRepresentations[representation_id].body + '</p>';
eads@25 174 $target.replaceSelection(snippet, true);
eads@16 175 }
eads@16 176 }, settings);
eads@16 177 $(settings.drop_selector).dnd(settings);
eads@16 178 }
eads@4 179
eads@16 180 // Attach TinyMCE
eads@2 181 Drupal.behaviors.dndLibrary.attach_tinymce = function(data, settings) {
eads@4 182 var tiny_instance = tinyMCE.getInstanceById(data.field);
eads@4 183
eads@4 184 // If the Tiny instance exists, attach directly, otherwise wait until Tiny
eads@4 185 // has registered a new instance.
eads@4 186 if (tiny_instance) {
eads@4 187 Drupal.behaviors.dndLibrary._attach_tinymce(data, settings, tiny_instance);
eads@4 188 } else {
eads@4 189 var t = setInterval(function() {
eads@4 190 var tiny_instance = tinyMCE.getInstanceById(data.field);
eads@4 191 if (tiny_instance) {
eads@4 192 Drupal.behaviors.dndLibrary._attach_tinymce(data, settings, tiny_instance);
eads@24 193 $('#'+ data.field +'-wrapper').trigger('dnd_attach_library');
eads@4 194 clearInterval(t);
eads@2 195 }
eads@4 196 }, 100);
eads@4 197 }
eads@4 198 }
eads@2 199
eads@17 200 Drupal.behaviors.dndLibrary.idSelector = function(element) {
eads@17 201 if ($(element).is('img')) {
eads@17 202 return $.url.setUrl(element.src).param('dnd_id');
eads@17 203 }
eads@17 204 return false;
eads@17 205 }
eads@17 206
eads@16 207 // Really attach TinyMCE
eads@4 208 Drupal.behaviors.dndLibrary._attach_tinymce = function(data, settings, tiny_instance) {
eads@16 209 var ed = tiny_instance, dom = ed.dom, s = ed.selection;
eads@16 210
eads@4 211 settings = $.extend({
eads@4 212 targets: $('#'+ data.field +'-wrapper iframe'),
eads@31 213 processTargets: function(targets) {
eads@31 214 return targets.each(function() {
eads@31 215 var target = this
eads@31 216 // Decrement counter on delete
eads@31 217 $(target).bind('dnd_delete', function(e, data) {
eads@31 218 Drupal.behaviors.dndLibrary.countElements(target, $(data.node).attr('dnd_id'), true);
eads@31 219 });
eads@31 220 $('head', $(this).contents()).append('<style type="text/css">img { display: none; } img.dnd-dropped {display: block; }</style>');
eads@31 221 return this;
eads@31 222 });
eads@31 223 },
eads@20 224 processIframeDrop: function(drop, id_selector) {
eads@20 225 var representation_id = id_selector.call(this, drop);
eads@24 226 var representation = Drupal.settings.dndEditorRepresentations[representation_id].body;
eads@20 227 var target = this, $target = $(target), $drop = $(drop), block;
eads@15 228
eads@25 229 // Update element count
eads@31 230 Drupal.behaviors.dndLibrary.countElements(target, representation_id);
eads@24 231
eads@16 232 // Search through block level parents
eads@20 233 $drop.parents().each(function() {
eads@16 234 var $this = $(this);
eads@16 235 if ($this.css('display') == 'block') {
eads@16 236 block = this;
eads@16 237 return false;
eads@16 238 }
eads@16 239 });
eads@16 240
eads@16 241 // Remove dropped item
eads@20 242 $drop.remove();
eads@16 243
eads@16 244 // Create an element to insert
eads@31 245 var insert = dom.create('p', {'class' : 'dnd-drop-wrapper', 'id' : 'dnd-inserted'}, representation);
eads@16 246
eads@16 247 // The no-parent case
eads@16 248 if ($(block).is('body')) {
eads@16 249 s.setNode(insert);
eads@16 250 }
eads@16 251 else {
eads@16 252 var old_id = block.id;
eads@16 253 block.id = 'target-block';
eads@16 254 $block = $('#target-block', $target.contents());
eads@16 255
eads@16 256 // @TODO is finding the parent broken in safari??
eads@31 257 $block.after('<p class="dnd-drop-wrapper" id="dnd-inserted">' + representation + '</p>');
eads@16 258
eads@16 259 // The active target block should be empty
eads@31 260 if ($('#target-block:dnd_empty', $target.contents()).length > 0) {
eads@17 261 $('#target-block', $target.contents()).remove();
eads@16 262 } else if (old_id) {
eads@16 263 block.id = old_id;
eads@16 264 } else {
eads@16 265 $block.removeAttr('id');
eads@16 266 }
eads@31 267 }
eads@16 268
eads@16 269 var $inserted = $('#dnd-inserted', $target.contents());
eads@16 270 var inserted = $inserted.get(0);
eads@16 271
eads@16 272 // Look behind in the DOM
eads@16 273 var previous = $inserted.prev().get(0);
eads@16 274
eads@16 275 // If the previous element is also an editor representation, we need to
eads@16 276 // put a dummy paragraph between the elements to prevent editor errors.
eads@31 277 if (previous ) {
eads@31 278 $inserted.before('<p></p>');
eads@16 279 }
eads@16 280
eads@16 281 // Look ahead in the DOM
eads@16 282 var next = $inserted.next().get(0);
eads@16 283
eads@16 284 // If the next item exists and isn't an editor representation, drop the
eads@16 285 // caret at the beginning of the element, otherwise make a new paragraph
eads@16 286 // to advance the caret to.
eads@31 287 if (next && !$(next).hasClass('dnd-drop-wrapper')) {
eads@16 288 $(next).prepend('<span id="__caret">_</span>');
eads@16 289 }
eads@31 290 else if (!$(next).hasClass('dnd-drop-wrapper')) {
eads@16 291 var after = dom.create('p', {}, '<span id="__caret">_</span>');
eads@16 292 dom.insertAfter(after, 'dnd-inserted');
eads@16 293 }
eads@31 294
eads@16 295 // Force selection to reset the caret
eads@16 296 var c = dom.get('__caret');
eads@31 297 if (c) {
eads@31 298 s.select(c);
eads@31 299 ed.execCommand('Delete', false, null);
eads@31 300 dom.remove(c);
eads@31 301 }
eads@31 302
eads@31 303 // Unset id for next drop and add special dnd attribute for counting
eads@31 304 // purposes
eads@31 305 $inserted
eads@31 306 .removeAttr('id')
eads@31 307 .attr('dnd_id', representation_id);
eads@31 308
eads@4 309 }
eads@4 310 }, settings);
eads@4 311
eads@4 312 $(settings.drop_selector).dnd(settings);
eads@2 313 }
eads@25 314
eads@25 315
eads@25 316 // Keep a counter of times a representation ID has been used
eads@31 317 Drupal.behaviors.dndLibrary.countElements = function(target, representation_id, decrement) {
eads@31 318 var counter = $(target).data('dnd_representation_counter');
eads@25 319 if (!counter) {
eads@25 320 counter = {}
eads@25 321 counter[representation_id] = 1;
eads@25 322 } else if (counter && !counter[representation_id]) {
eads@25 323 counter[representation_id] = 1;
eads@25 324 } else {
eads@31 325 counter[representation_id] = counter[representation_id] + ((decrement) ? -1 : 1);
eads@25 326 }
eads@31 327 $(target).data('dnd_representation_counter', counter);
eads@31 328 return counter[representation_id];
eads@25 329 }