wp-includes/js/wplink.dev.js

   1 var wpLink;
   2
   3 (function($){
   4         var inputs = {}, rivers = {}, ed, River, Query;
   5
   6         wpLink = {
   7                 timeToTriggerRiver: 150,
   8                 minRiverAJAXDuration: 200,
   9                 riverBottomThreshold: 5,
  10                 keySensitivity: 100,
  11                 lastSearch: '',
  12                 textarea: '',
  13
  14                 init : function() {
  15                         inputs.dialog = $('#wp-link');
  16                         inputs.submit = $('#wp-link-submit');
  17                         // URL
  18                         inputs.url = $('#url-field');
  19                         inputs.nonce = $('#_ajax_linking_nonce');
  20                         // Secondary options
  21                         inputs.title = $('#link-title-field');
  22                         // Advanced Options
  23                         inputs.openInNewTab = $('#link-target-checkbox');
  24                         inputs.search = $('#search-field');
  25                         // Build Rivers
  26                         rivers.search = new River( $('#search-results') );
  27                         rivers.recent = new River( $('#most-recent-results') );
  28                         rivers.elements = $('.query-results', inputs.dialog);
  29
  30                         // Bind event handlers
  31                         inputs.dialog.keydown( wpLink.keydown );
  32                         inputs.dialog.keyup( wpLink.keyup );
  33                         inputs.submit.click( function(e){
  34                                 e.preventDefault();
  35                                 wpLink.update();
  36                         });
  37                         $('#wp-link-cancel').click( function(e){
  38                                 e.preventDefault();
  39                                 wpLink.close();
  40                         });
  41                         $('#internal-toggle').click( wpLink.toggleInternalLinking );
  42
  43                         rivers.elements.bind('river-select', wpLink.updateFields );
  44
  45                         inputs.search.keyup( wpLink.searchInternalLinks );
  46
  47                         inputs.dialog.bind('wpdialogrefresh', wpLink.refresh);
  48                         inputs.dialog.bind('wpdialogbeforeopen', wpLink.beforeOpen);
  49                         inputs.dialog.bind('wpdialogclose', wpLink.onClose);
  50                 },
  51
  52                 beforeOpen : function() {
  53                         wpLink.range = null;
  54
  55                         if ( ! wpLink.isMCE() && document.selection ) {
  56                                 wpLink.textarea.focus();
  57                                 wpLink.range = document.selection.createRange();
  58                         }
  59                 },
  60
  61                 open : function() {
  62                         if ( !wpActiveEditor )
  63                                 return;
  64
  65                         this.textarea = $('#'+wpActiveEditor).get(0);
  66
  67                         // Initialize the dialog if necessary (html mode).
  68                         if ( ! inputs.dialog.data('wpdialog') ) {
  69                                 inputs.dialog.wpdialog({
  70                                         title: wpLinkL10n.title,
  71                                         width: 480,
  72                                         height: 'auto',
  73                                         modal: true,
  74                                         dialogClass: 'wp-dialog',
  75                                         zIndex: 300000
  76                                 });
  77                         }
  78
  79                         inputs.dialog.wpdialog('open');
  80                 },
  81
  82                 isMCE : function() {
  83                         return tinyMCEPopup && ( ed = tinyMCEPopup.editor ) && ! ed.isHidden();
  84                 },
  85
  86                 refresh : function() {
  87                         // Refresh rivers (clear links, check visibility)
  88                         rivers.search.refresh();
  89                         rivers.recent.refresh();
  90
  91                         if ( wpLink.isMCE() )
  92                                 wpLink.mceRefresh();
  93                         else
  94                                 wpLink.setDefaultValues();
  95
  96                         // Focus the URL field and highlight its contents.
  97                         //     If this is moved above the selection changes,
  98                         //     IE will show a flashing cursor over the dialog.
  99                         inputs.url.focus()[0].select();
 100                         // Load the most recent results if this is the first time opening the panel.
 101                         if ( ! rivers.recent.ul.children().length )
 102                                 rivers.recent.ajax();
 103                 },
 104
 105                 mceRefresh : function() {
 106                         var e;
 107                         ed = tinyMCEPopup.editor;
 108
 109                         tinyMCEPopup.restoreSelection();
 110
 111                         // If link exists, select proper values.
 112                         if ( e = ed.dom.getParent(ed.selection.getNode(), 'A') ) {
 113                                 // Set URL and description.
 114                                 inputs.url.val( ed.dom.getAttrib(e, 'href') );
 115                                 inputs.title.val( ed.dom.getAttrib(e, 'title') );
 116                                 // Set open in new tab.
 117                                 if ( "_blank" == ed.dom.getAttrib(e, 'target') )
 118                                         inputs.openInNewTab.prop('checked', true);
 119                                 // Update save prompt.
 120                                 inputs.submit.val( wpLinkL10n.update );
 121
 122                         // If there's no link, set the default values.
 123                         } else {
 124                                 wpLink.setDefaultValues();
 125                         }
 126
 127                         tinyMCEPopup.storeSelection();
 128                 },
 129
 130                 close : function() {
 131                         if ( wpLink.isMCE() )
 132                                 tinyMCEPopup.close();
 133                         else
 134                                 inputs.dialog.wpdialog('close');
 135                 },
 136
 137                 onClose: function() {
 138                         if ( ! wpLink.isMCE() ) {
 139                                 wpLink.textarea.focus();
 140                                 if ( wpLink.range ) {
 141                                         wpLink.range.moveToBookmark( wpLink.range.getBookmark() );
 142                                         wpLink.range.select();
 143                                 }
 144                         }
 145                 },
 146
 147                 getAttrs : function() {
 148                         return {
 149                                 href : inputs.url.val(),
 150                                 title : inputs.title.val(),
 151                                 target : inputs.openInNewTab.prop('checked') ? '_blank' : ''
 152                         };
 153                 },
 154
 155                 update : function() {
 156                         if ( wpLink.isMCE() )
 157                                 wpLink.mceUpdate();
 158                         else
 159                                 wpLink.htmlUpdate();
 160                 },
 161
 162                 htmlUpdate : function() {
 163                         var attrs, html, start, end, cursor,
 164                                 textarea = wpLink.textarea;
 165
 166                         if ( ! textarea )
 167                                 return;
 168
 169                         attrs = wpLink.getAttrs();
 170
 171                         // If there's no href, return.
 172                         if ( ! attrs.href || attrs.href == 'http://' )
 173                                 return;
 174
 175                         // Build HTML
 176                         html = '<a href="' + attrs.href + '"';
 177
 178                         if ( attrs.title )
 179                                 html += ' title="' + attrs.title + '"';
 180                         if ( attrs.target )
 181                                 html += ' target="' + attrs.target + '"';
 182
 183                         html += '>';
 184
 185                         // Insert HTML
 186                         // W3C
 187                         if ( typeof textarea.selectionStart !== 'undefined' ) {
 188                                 start       = textarea.selectionStart;
 189                                 end         = textarea.selectionEnd;
 190                                 selection   = textarea.value.substring( start, end );
 191                                 html        = html + selection + '</a>';
 192                                 cursor      = start + html.length;
 193
 194                                 // If no next is selected, place the cursor inside the closing tag.
 195                                 if ( start == end )
 196                                         cursor -= '</a>'.length;
 197
 198                                 textarea.value = textarea.value.substring( 0, start )
 199                                                + html
 200                                                + textarea.value.substring( end, textarea.value.length );
 201
 202                                 // Update cursor position
 203                                 textarea.selectionStart = textarea.selectionEnd = cursor;
 204
 205                         // IE
 206                         // Note: If no text is selected, IE will not place the cursor
 207                         //       inside the closing tag.
 208                         } else if ( document.selection && wpLink.range ) {
 209                                 textarea.focus();
 210                                 wpLink.range.text = html + wpLink.range.text + '</a>';
 211                                 wpLink.range.moveToBookmark( wpLink.range.getBookmark() );
 212                                 wpLink.range.select();
 213
 214                                 wpLink.range = null;
 215                         }
 216
 217                         wpLink.close();
 218                         textarea.focus();
 219                 },
 220
 221                 mceUpdate : function() {
 222                         var ed = tinyMCEPopup.editor,
 223                                 attrs = wpLink.getAttrs(),
 224                                 e, b;
 225
 226                         tinyMCEPopup.restoreSelection();
 227                         e = ed.dom.getParent(ed.selection.getNode(), 'A');
 228
 229                         // If the values are empty, unlink and return
 230                         if ( ! attrs.href || attrs.href == 'http://' ) {
 231                                 if ( e ) {
 232                                         tinyMCEPopup.execCommand("mceBeginUndoLevel");
 233                                         b = ed.selection.getBookmark();
 234                                         ed.dom.remove(e, 1);
 235                                         ed.selection.moveToBookmark(b);
 236                                         tinyMCEPopup.execCommand("mceEndUndoLevel");
 237                                         wpLink.close();
 238                                 }
 239                                 return;
 240                         }
 241
 242                         tinyMCEPopup.execCommand("mceBeginUndoLevel");
 243
 244                         if (e == null) {
 245                                 ed.getDoc().execCommand("unlink", false, null);
 246                                 tinyMCEPopup.execCommand("CreateLink", false, "#mce_temp_url#", {skip_undo : 1});
 247
 248                                 tinymce.each(ed.dom.select("a"), function(n) {
 249                                         if (ed.dom.getAttrib(n, 'href') == '#mce_temp_url#') {
 250                                                 e = n;
 251                                                 ed.dom.setAttribs(e, attrs);
 252                                         }
 253                                 });
 254
 255                                 // Sometimes WebKit lets a user create a link where
 256                                 // they shouldn't be able to. In this case, CreateLink
 257                                 // injects "#mce_temp_url#" into their content. Fix it.
 258                                 if ( $(e).text() == '#mce_temp_url#' ) {
 259                                         ed.dom.remove(e);
 260                                         e = null;
 261                                 }
 262                         } else {
 263                                 ed.dom.setAttribs(e, attrs);
 264                         }
 265
 266                         // Don't move caret if selection was image
 267                         if ( e && (e.childNodes.length != 1 || e.firstChild.nodeName != 'IMG') ) {
 268                                 ed.focus();
 269                                 ed.selection.select(e);
 270                                 ed.selection.collapse(0);
 271                                 tinyMCEPopup.storeSelection();
 272                         }
 273
 274                         tinyMCEPopup.execCommand("mceEndUndoLevel");
 275                         wpLink.close();
 276                 },
 277
 278                 updateFields : function( e, li, originalEvent ) {
 279                         inputs.url.val( li.children('.item-permalink').val() );
 280                         inputs.title.val( li.hasClass('no-title') ? '' : li.children('.item-title').text() );
 281                         if ( originalEvent && originalEvent.type == "click" )
 282                                 inputs.url.focus();
 283                 },
 284                 setDefaultValues : function() {
 285                         // Set URL and description to defaults.
 286                         // Leave the new tab setting as-is.
 287                         inputs.url.val('http://');
 288                         inputs.title.val('');
 289
 290                         // Update save prompt.
 291                         inputs.submit.val( wpLinkL10n.save );
 292                 },
 293
 294                 searchInternalLinks : function() {
 295                         var t = $(this), waiting,
 296                                 search = t.val();
 297
 298                         if ( search.length > 2 ) {
 299                                 rivers.recent.hide();
 300                                 rivers.search.show();
 301
 302                                 // Don't search if the keypress didn't change the title.
 303                                 if ( wpLink.lastSearch == search )
 304                                         return;
 305
 306                                 wpLink.lastSearch = search;
 307                                 waiting = t.siblings('img.waiting').show();
 308
 309                                 rivers.search.change( search );
 310                                 rivers.search.ajax( function(){ waiting.hide(); });
 311                         } else {
 312                                 rivers.search.hide();
 313                                 rivers.recent.show();
 314                         }
 315                 },
 316
 317                 next : function() {
 318                         rivers.search.next();
 319                         rivers.recent.next();
 320                 },
 321                 prev : function() {
 322                         rivers.search.prev();
 323                         rivers.recent.prev();
 324                 },
 325
 326                 keydown : function( event ) {
 327                         var fn, key = $.ui.keyCode;
 328
 329                         switch( event.which ) {
 330                                 case key.UP:
 331                                         fn = 'prev';
 332                                 case key.DOWN:
 333                                         fn = fn || 'next';
 334                                         clearInterval( wpLink.keyInterval );
 335                                         wpLink[ fn ]();
 336                                         wpLink.keyInterval = setInterval( wpLink[ fn ], wpLink.keySensitivity );
 337                                         break;
 338                                 default:
 339                                         return;
 340                         }
 341                         event.preventDefault();
 342                 },
 343                 keyup: function( event ) {
 344                         var key = $.ui.keyCode;
 345
 346                         switch( event.which ) {
 347                                 case key.ESCAPE:
 348                                         event.stopImmediatePropagation();
 349                                         if ( ! $(document).triggerHandler( 'wp_CloseOnEscape', [{ event: event, what: 'wplink', cb: wpLink.close }] ) )
 350                                                 wpLink.close();
 351
 352                                         return false;
 353                                         break;
 354                                 case key.UP:
 355                                 case key.DOWN:
 356                                         clearInterval( wpLink.keyInterval );
 357                                         break;
 358                                 default:
 359                                         return;
 360                         }
 361                         event.preventDefault();
 362                 },
 363
 364                 delayedCallback : function( func, delay ) {
 365                         var timeoutTriggered, funcTriggered, funcArgs, funcContext;
 366
 367                         if ( ! delay )
 368                                 return func;
 369
 370                         setTimeout( function() {
 371                                 if ( funcTriggered )
 372                                         return func.apply( funcContext, funcArgs );
 373                                 // Otherwise, wait.
 374                                 timeoutTriggered = true;
 375                         }, delay);
 376
 377                         return function() {
 378                                 if ( timeoutTriggered )
 379                                         return func.apply( this, arguments );
 380                                 // Otherwise, wait.
 381                                 funcArgs = arguments;
 382                                 funcContext = this;
 383                                 funcTriggered = true;
 384                         };
 385                 },
 386
 387                 toggleInternalLinking : function( event ) {
 388                         var panel = $('#search-panel'),
 389                                 widget = inputs.dialog.wpdialog('widget'),
 390                                 // We're about to toggle visibility; it's currently the opposite
 391                                 visible = !panel.is(':visible'),
 392                                 win = $(window);
 393
 394                         $(this).toggleClass('toggle-arrow-active', visible);
 395
 396                         inputs.dialog.height('auto');
 397                         panel.slideToggle( 300, function() {
 398                                 setUserSetting('wplink', visible ? '1' : '0');
 399                                 inputs[ visible ? 'search' : 'url' ].focus();
 400
 401                                 // Move the box if the box is now expanded, was opened in a collapsed state,
 402                                 // and if it needs to be moved. (Judged by bottom not being positive or
 403                                 // bottom being smaller than top.)
 404                                 var scroll = win.scrollTop(),
 405                                         top = widget.offset().top,
 406                                         bottom = top + widget.outerHeight(),
 407                                         diff = bottom - win.height();
 408
 409                                 if ( diff > scroll ) {
 410                                         widget.animate({'top': diff < top ?  top - diff : scroll }, 200);
 411                                 }
 412                         });
 413                         event.preventDefault();
 414                 }
 415         }
 416
 417         River = function( element, search ) {
 418                 var self = this;
 419                 this.element = element;
 420                 this.ul = element.children('ul');
 421                 this.waiting = element.find('.river-waiting');
 422
 423                 this.change( search );
 424                 this.refresh();
 425
 426                 element.scroll( function(){ self.maybeLoad(); });
 427                 element.delegate('li', 'click', function(e){ self.select( $(this), e ); });
 428         };
 429
 430         $.extend( River.prototype, {
 431                 refresh: function() {
 432                         this.deselect();
 433                         this.visible = this.element.is(':visible');
 434                 },
 435                 show: function() {
 436                         if ( ! this.visible ) {
 437                                 this.deselect();
 438                                 this.element.show();
 439                                 this.visible = true;
 440                         }
 441                 },
 442                 hide: function() {
 443                         this.element.hide();
 444                         this.visible = false;
 445                 },
 446                 // Selects a list item and triggers the river-select event.
 447                 select: function( li, event ) {
 448                         var liHeight, elHeight, liTop, elTop;
 449
 450                         if ( li.hasClass('unselectable') || li == this.selected )
 451                                 return;
 452
 453                         this.deselect();
 454                         this.selected = li.addClass('selected');
 455                         // Make sure the element is visible
 456                         liHeight = li.outerHeight();
 457                         elHeight = this.element.height();
 458                         liTop = li.position().top;
 459                         elTop = this.element.scrollTop();
 460
 461                         if ( liTop < 0 ) // Make first visible element
 462                                 this.element.scrollTop( elTop + liTop );
 463                         else if ( liTop + liHeight > elHeight ) // Make last visible element
 464                                 this.element.scrollTop( elTop + liTop - elHeight + liHeight );
 465
 466                         // Trigger the river-select event
 467                         this.element.trigger('river-select', [ li, event, this ]);
 468                 },
 469                 deselect: function() {
 470                         if ( this.selected )
 471                                 this.selected.removeClass('selected');
 472                         this.selected = false;
 473                 },
 474                 prev: function() {
 475                         if ( ! this.visible )
 476                                 return;
 477
 478                         var to;
 479                         if ( this.selected ) {
 480                                 to = this.selected.prev('li');
 481                                 if ( to.length )
 482                                         this.select( to );
 483                         }
 484                 },
 485                 next: function() {
 486                         if ( ! this.visible )
 487                                 return;
 488
 489                         var to = this.selected ? this.selected.next('li') : $('li:not(.unselectable):first', this.element);
 490                         if ( to.length )
 491                                 this.select( to );
 492                 },
 493                 ajax: function( callback ) {
 494                         var self = this,
 495                                 delay = this.query.page == 1 ? 0 : wpLink.minRiverAJAXDuration,
 496                                 response = wpLink.delayedCallback( function( results, params ) {
 497                                         self.process( results, params );
 498                                         if ( callback )
 499                                                 callback( results, params );
 500                                 }, delay );
 501
 502                         this.query.ajax( response );
 503                 },
 504                 change: function( search ) {
 505                         if ( this.query && this._search == search )
 506                                 return;
 507
 508                         this._search = search;
 509                         this.query = new Query( search );
 510                         this.element.scrollTop(0);
 511                 },
 512                 process: function( results, params ) {
 513                         var list = '', alt = true, classes = '',
 514                                 firstPage = params.page == 1;
 515
 516                         if ( !results ) {
 517                                 if ( firstPage ) {
 518                                         list += '<li class="unselectable"><span class="item-title"><em>'
 519                                         + wpLinkL10n.noMatchesFound
 520                                         + '</em></span></li>';
 521                                 }
 522                         } else {
 523                                 $.each( results, function() {
 524                                         classes = alt ? 'alternate' : '';
 525                                         classes += this['title'] ? '' : ' no-title';
 526                                         list += classes ? '<li class="' + classes + '">' : '<li>';
 527                                         list += '<input type="hidden" class="item-permalink" value="' + this['permalink'] + '" />';
 528                                         list += '<span class="item-title">';
 529                                         list += this['title'] ? this['title'] : wpLinkL10n.noTitle;
 530                                         list += '</span><span class="item-info">' + this['info'] + '</span></li>';
 531                                         alt = ! alt;
 532                                 });
 533                         }
 534
 535                         this.ul[ firstPage ? 'html' : 'append' ]( list );
 536                 },
 537                 maybeLoad: function() {
 538                         var self = this,
 539                                 el = this.element,
 540                                 bottom = el.scrollTop() + el.height();
 541
 542                         if ( ! this.query.ready() || bottom < this.ul.height() - wpLink.riverBottomThreshold )
 543                                 return;
 544
 545                         setTimeout(function() {
 546                                 var newTop = el.scrollTop(),
 547                                         newBottom = newTop + el.height();
 548
 549                                 if ( ! self.query.ready() || newBottom < self.ul.height() - wpLink.riverBottomThreshold )
 550                                         return;
 551
 552                                 self.waiting.show();
 553                                 el.scrollTop( newTop + self.waiting.outerHeight() );
 554
 555                                 self.ajax( function() { self.waiting.hide(); });
 556                         }, wpLink.timeToTriggerRiver );
 557                 }
 558         });
 559
 560         Query = function( search ) {
 561                 this.page = 1;
 562                 this.allLoaded = false;
 563                 this.querying = false;
 564                 this.search = search;
 565         };
 566
 567         $.extend( Query.prototype, {
 568                 ready: function() {
 569                         return !( this.querying || this.allLoaded );
 570                 },
 571                 ajax: function( callback ) {
 572                         var self = this,
 573                                 query = {
 574                                         action : 'wp-link-ajax',
 575                                         page : this.page,
 576                                         '_ajax_linking_nonce' : inputs.nonce.val()
 577                                 };
 578
 579                         if ( this.search )
 580                                 query.search = this.search;
 581
 582                         this.querying = true;
 583
 584                         $.post( ajaxurl, query, function(r) {
 585                                 self.page++;
 586                                 self.querying = false;
 587                                 self.allLoaded = !r;
 588                                 callback( r, query );
 589                         }, "json" );
 590                 }
 591         });
 592
 593         $(document).ready( wpLink.init );
 594 })(jQuery);