wp-admin/js/image-edit.js

   1 var imageEdit;
   2
   3 (function($) {
   4 imageEdit = {
   5         iasapi : {},
   6         hold : {},
   7         postid : '',
   8
   9         intval : function(f) {
  10                 return f | 0;
  11         },
  12
  13         setDisabled : function(el, s) {
  14                 if ( s ) {
  15                         el.removeClass('disabled');
  16                         $('input', el).removeAttr('disabled');
  17                 } else {
  18                         el.addClass('disabled');
  19                         $('input', el).prop('disabled', true);
  20                 }
  21         },
  22
  23         init : function(postid, nonce) {
  24                 var t = this, old = $('#image-editor-' + t.postid),
  25                         x = t.intval( $('#imgedit-x-' + postid).val() ),
  26                         y = t.intval( $('#imgedit-y-' + postid).val() );
  27
  28                 if ( t.postid != postid && old.length )
  29                         t.close(t.postid);
  30
  31                 t.hold['w'] = t.hold['ow'] = x;
  32                 t.hold['h'] = t.hold['oh'] = y;
  33                 t.hold['xy_ratio'] = x / y;
  34                 t.hold['sizer'] = parseFloat( $('#imgedit-sizer-' + postid).val() );
  35                 t.postid = postid;
  36                 $('#imgedit-response-' + postid).empty();
  37
  38                 $('input[type="text"]', '#imgedit-panel-' + postid).keypress(function(e) {
  39                         var k = e.keyCode;
  40
  41                         if ( 36 < k && k < 41 )
  42                                 $(this).blur()
  43
  44                         if ( 13 == k ) {
  45                                 e.preventDefault();
  46                                 e.stopPropagation();
  47                                 return false;
  48                         }
  49                 });
  50         },
  51
  52         toggleEditor : function(postid, toggle) {
  53                 var wait = $('#imgedit-wait-' + postid);
  54
  55                 if ( toggle )
  56                         wait.height( $('#imgedit-panel-' + postid).height() ).fadeIn('fast');
  57                 else
  58                         wait.fadeOut('fast');
  59         },
  60
  61         toggleHelp : function(el) {
  62                 $(el).siblings('.imgedit-help').slideToggle('fast');
  63                 return false;
  64         },
  65
  66         getTarget : function(postid) {
  67                 return $('input[name="imgedit-target-' + postid + '"]:checked', '#imgedit-save-target-' + postid).val() || 'full';
  68         },
  69
  70         scaleChanged : function(postid, x) {
  71                 var w = $('#imgedit-scale-width-' + postid), h = $('#imgedit-scale-height-' + postid),
  72                 warn = $('#imgedit-scale-warn-' + postid), w1 = '', h1 = '';
  73
  74                 if ( x ) {
  75                         h1 = (w.val() != '') ? Math.round( w.val() / this.hold['xy_ratio'] ) : '';
  76                         h.val( h1 );
  77                 } else {
  78                         w1 = (h.val() != '') ? Math.round( h.val() * this.hold['xy_ratio'] ) : '';
  79                         w.val( w1 );
  80                 }
  81
  82                 if ( ( h1 && h1 > this.hold['oh'] ) || ( w1 && w1 > this.hold['ow'] ) )
  83                         warn.css('visibility', 'visible');
  84                 else
  85                         warn.css('visibility', 'hidden');
  86         },
  87
  88         getSelRatio : function(postid) {
  89                 var x = this.hold['w'], y = this.hold['h'],
  90                         X = this.intval( $('#imgedit-crop-width-' + postid).val() ),
  91                         Y = this.intval( $('#imgedit-crop-height-' + postid).val() );
  92
  93                 if ( X && Y )
  94                         return X + ':' + Y;
  95
  96                 if ( x && y )
  97                         return x + ':' + y;
  98
  99                 return '1:1';
 100         },
 101
 102         filterHistory : function(postid, setSize) {
 103                 // apply undo state to history
 104                 var history = $('#imgedit-history-' + postid).val(), pop, n, o, i, op = [];
 105
 106                 if ( history != '' ) {
 107                         history = JSON.parse(history);
 108                         pop = this.intval( $('#imgedit-undone-' + postid).val() );
 109                         if ( pop > 0 ) {
 110                                 while ( pop > 0 ) {
 111                                         history.pop();
 112                                         pop--;
 113                                 }
 114                         }
 115
 116                         if ( setSize ) {
 117                                 if ( !history.length ) {
 118                                         this.hold['w'] = this.hold['ow'];
 119                                         this.hold['h'] = this.hold['oh'];
 120                                         return '';
 121                                 }
 122
 123                                 // restore
 124                                 o = history[history.length - 1];
 125                                 o = o.c || o.r || o.f || false;
 126
 127                                 if ( o ) {
 128                                         this.hold['w'] = o.fw;
 129                                         this.hold['h'] = o.fh;
 130                                 }
 131                         }
 132
 133                         // filter the values
 134                         for ( n in history ) {
 135                                 i = history[n];
 136                                 if ( i.hasOwnProperty('c') ) {
 137                                         op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h } };
 138                                 } else if ( i.hasOwnProperty('r') ) {
 139                                         op[n] = { 'r': i.r.r };
 140                                 } else if ( i.hasOwnProperty('f') ) {
 141                                         op[n] = { 'f': i.f.f };
 142                                 }
 143                         }
 144                         return JSON.stringify(op);
 145                 }
 146                 return '';
 147         },
 148
 149         refreshEditor : function(postid, nonce, callback) {
 150                 var t = this, data, img;
 151
 152                 t.toggleEditor(postid, 1);
 153                 data = {
 154                         'action': 'imgedit-preview',
 155                         '_ajax_nonce': nonce,
 156                         'postid': postid,
 157                         'history': t.filterHistory(postid, 1),
 158                         'rand': t.intval(Math.random() * 1000000)
 159                 };
 160
 161                 img = $('<img id="image-preview-' + postid + '" />')
 162                         .on('load', function() {
 163                                 var max1, max2, parent = $('#imgedit-crop-' + postid), t = imageEdit;
 164
 165                                 parent.empty().append(img);
 166
 167                                 // w, h are the new full size dims
 168                                 max1 = Math.max( t.hold.w, t.hold.h );
 169                                 max2 = Math.max( $(img).width(), $(img).height() );
 170                                 t.hold['sizer'] = max1 > max2 ? max2 / max1 : 1;
 171
 172                                 t.initCrop(postid, img, parent);
 173                                 t.setCropSelection(postid, 0);
 174
 175                                 if ( (typeof callback != "unknown") && callback != null )
 176                                         callback();
 177
 178                                 if ( $('#imgedit-history-' + postid).val() && $('#imgedit-undone-' + postid).val() == 0 )
 179                                         $('input.imgedit-submit-btn', '#imgedit-panel-' + postid).removeAttr('disabled');
 180                                 else
 181                                         $('input.imgedit-submit-btn', '#imgedit-panel-' + postid).prop('disabled', true);
 182
 183                                 t.toggleEditor(postid, 0);
 184                         })
 185                         .on('error', function() {
 186                                 $('#imgedit-crop-' + postid).empty().append('<div class="error"><p>' + imageEditL10n.error + '</p></div>');
 187                                 t.toggleEditor(postid, 0);
 188                         })
 189                         .attr('src', ajaxurl + '?' + $.param(data));
 190         },
 191
 192         action : function(postid, nonce, action) {
 193                 var t = this, data, w, h, fw, fh;
 194
 195                 if ( t.notsaved(postid) )
 196                         return false;
 197
 198                 data = {
 199                         'action': 'image-editor',
 200                         '_ajax_nonce': nonce,
 201                         'postid': postid
 202                 };
 203
 204                 if ( 'scale' == action ) {
 205                         w = $('#imgedit-scale-width-' + postid),
 206                         h = $('#imgedit-scale-height-' + postid),
 207                         fw = t.intval(w.val()),
 208                         fh = t.intval(h.val());
 209
 210                         if ( fw < 1 ) {
 211                                 w.focus();
 212                                 return false;
 213                         } else if ( fh < 1 ) {
 214                                 h.focus();
 215                                 return false;
 216                         }
 217
 218                         if ( fw == t.hold.ow || fh == t.hold.oh )
 219                                 return false;
 220
 221                         data['do'] = 'scale';
 222                         data['fwidth'] = fw;
 223                         data['fheight'] = fh;
 224                 } else if ( 'restore' == action ) {
 225                         data['do'] = 'restore';
 226                 } else {
 227                         return false;
 228                 }
 229
 230                 t.toggleEditor(postid, 1);
 231                 $.post(ajaxurl, data, function(r) {
 232                         $('#image-editor-' + postid).empty().append(r);
 233                         t.toggleEditor(postid, 0);
 234                 });
 235         },
 236
 237         save : function(postid, nonce) {
 238                 var data, target = this.getTarget(postid), history = this.filterHistory(postid, 0);
 239
 240                 if ( '' == history )
 241                         return false;
 242
 243                 this.toggleEditor(postid, 1);
 244                 data = {
 245                         'action': 'image-editor',
 246                         '_ajax_nonce': nonce,
 247                         'postid': postid,
 248                         'history': history,
 249                         'target': target,
 250                         'context': $('#image-edit-context').length ? $('#image-edit-context').val() : null,
 251                         'do': 'save'
 252                 };
 253
 254                 $.post(ajaxurl, data, function(r) {
 255                         var ret = JSON.parse(r);
 256
 257                         if ( ret.error ) {
 258                                 $('#imgedit-response-' + postid).html('<div class="error"><p>' + ret.error + '</p><div>');
 259                                 imageEdit.close(postid);
 260                                 return;
 261                         }
 262
 263                         if ( ret.fw && ret.fh )
 264                                 $('#media-dims-' + postid).html( ret.fw + ' &times; ' + ret.fh );
 265
 266                         if ( ret.thumbnail )
 267                                 $('.thumbnail', '#thumbnail-head-' + postid).attr('src', ''+ret.thumbnail);
 268
 269                         if ( ret.msg )
 270                                 $('#imgedit-response-' + postid).html('<div class="updated"><p>' + ret.msg + '</p></div>');
 271
 272                         imageEdit.close(postid);
 273                 });
 274         },
 275
 276         open : function(postid, nonce) {
 277                 var data, elem = $('#image-editor-' + postid), head = $('#media-head-' + postid),
 278                         btn = $('#imgedit-open-btn-' + postid), spin = btn.siblings('.spinner');
 279
 280                 btn.prop('disabled', true);
 281                 spin.show();
 282
 283                 data = {
 284                         'action': 'image-editor',
 285                         '_ajax_nonce': nonce,
 286                         'postid': postid,
 287                         'do': 'open'
 288                 };
 289
 290                 elem.load(ajaxurl, data, function() {
 291                         elem.fadeIn('fast');
 292                         head.fadeOut('fast', function(){
 293                                 btn.removeAttr('disabled');
 294                                 spin.hide();
 295                         });
 296                 });
 297         },
 298
 299         imgLoaded : function(postid) {
 300                 var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);
 301
 302                 this.initCrop(postid, img, parent);
 303                 this.setCropSelection(postid, 0);
 304                 this.toggleEditor(postid, 0);
 305         },
 306
 307         initCrop : function(postid, image, parent) {
 308                 var t = this, selW = $('#imgedit-sel-width-' + postid),
 309                         selH = $('#imgedit-sel-height-' + postid);
 310
 311                 t.iasapi = $(image).imgAreaSelect({
 312                         parent: parent,
 313                         instance: true,
 314                         handles: true,
 315                         keys: true,
 316                         minWidth: 3,
 317                         minHeight: 3,
 318
 319                         onInit: function(img, c) {
 320                                 parent.children().mousedown(function(e){
 321                                         var ratio = false, sel, defRatio;
 322
 323                                         if ( e.shiftKey ) {
 324                                                 sel = t.iasapi.getSelection();
 325                                                 defRatio = t.getSelRatio(postid);
 326                                                 ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
 327                                         }
 328
 329                                         t.iasapi.setOptions({
 330                                                 aspectRatio: ratio
 331                                         });
 332                                 });
 333                         },
 334
 335                         onSelectStart: function(img, c) {
 336                                 imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
 337                         },
 338
 339                         onSelectEnd: function(img, c) {
 340                                 imageEdit.setCropSelection(postid, c);
 341                         },
 342
 343                         onSelectChange: function(img, c) {
 344                                 var sizer = imageEdit.hold.sizer;
 345                                 selW.val( imageEdit.round(c.width / sizer) );
 346                                 selH.val( imageEdit.round(c.height / sizer) );
 347                         }
 348                 });
 349         },
 350
 351         setCropSelection : function(postid, c) {
 352                 var sel, min = $('#imgedit-minthumb-' + postid).val() || '128:128',
 353                         sizer = this.hold['sizer'];
 354                         min = min.split(':');
 355                         c = c || 0;
 356
 357                 if ( !c || ( c.width < 3 && c.height < 3 ) ) {
 358                         this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 359                         this.setDisabled($('#imgedit-crop-sel-' + postid), 0);
 360                         $('#imgedit-sel-width-' + postid).val('');
 361                         $('#imgedit-sel-height-' + postid).val('');
 362                         $('#imgedit-selection-' + postid).val('');
 363                         return false;
 364                 }
 365
 366                 if ( c.width < (min[0] * sizer) && c.height < (min[1] * sizer) ) {
 367                         this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 368                         $('#imgedit-selection-' + postid).val('');
 369                         return false;
 370                 }
 371
 372                 sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
 373                 this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
 374                 $('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
 375         },
 376
 377         close : function(postid, warn) {
 378                 warn = warn || false;
 379
 380                 if ( warn && this.notsaved(postid) )
 381                         return false;
 382
 383                 this.iasapi = {};
 384                 this.hold = {};
 385                 $('#image-editor-' + postid).fadeOut('fast', function() {
 386                         $('#media-head-' + postid).fadeIn('fast');
 387                         $(this).empty();
 388                 });
 389         },
 390
 391         notsaved : function(postid) {
 392                 var h = $('#imgedit-history-' + postid).val(),
 393                         history = (h != '') ? JSON.parse(h) : new Array(),
 394                         pop = this.intval( $('#imgedit-undone-' + postid).val() );
 395
 396                 if ( pop < history.length ) {
 397                         if ( confirm( $('#imgedit-leaving-' + postid).html() ) )
 398                                 return false;
 399                         return true;
 400                 }
 401                 return false;
 402         },
 403
 404         addStep : function(op, postid, nonce) {
 405                 var t = this, elem = $('#imgedit-history-' + postid),
 406                 history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array(),
 407                 undone = $('#imgedit-undone-' + postid),
 408                 pop = t.intval(undone.val());
 409
 410                 while ( pop > 0 ) {
 411                         history.pop();
 412                         pop--;
 413                 }
 414                 undone.val(0); // reset
 415
 416                 history.push(op);
 417                 elem.val( JSON.stringify(history) );
 418
 419                 t.refreshEditor(postid, nonce, function() {
 420                         t.setDisabled($('#image-undo-' + postid), true);
 421                         t.setDisabled($('#image-redo-' + postid), false);
 422                 });
 423         },
 424
 425         rotate : function(angle, postid, nonce, t) {
 426                 if ( $(t).hasClass('disabled') )
 427                         return false;
 428
 429                 this.addStep({ 'r': { 'r': angle, 'fw': this.hold['h'], 'fh': this.hold['w'] }}, postid, nonce);
 430         },
 431
 432         flip : function (axis, postid, nonce, t) {
 433                 if ( $(t).hasClass('disabled') )
 434                         return false;
 435
 436                 this.addStep({ 'f': { 'f': axis, 'fw': this.hold['w'], 'fh': this.hold['h'] }}, postid, nonce);
 437         },
 438
 439         crop : function (postid, nonce, t) {
 440                 var sel = $('#imgedit-selection-' + postid).val(),
 441                         w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
 442                         h = this.intval( $('#imgedit-sel-height-' + postid).val() );
 443
 444                 if ( $(t).hasClass('disabled') || sel == '' )
 445                         return false;
 446
 447                 sel = JSON.parse(sel);
 448                 if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
 449                         sel['fw'] = w;
 450                         sel['fh'] = h;
 451                         this.addStep({ 'c': sel }, postid, nonce);
 452                 }
 453         },
 454
 455         undo : function (postid, nonce) {
 456                 var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
 457                         pop = t.intval( elem.val() ) + 1;
 458
 459                 if ( button.hasClass('disabled') )
 460                         return;
 461
 462                 elem.val(pop);
 463                 t.refreshEditor(postid, nonce, function() {
 464                         var elem = $('#imgedit-history-' + postid),
 465                         history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array();
 466
 467                         t.setDisabled($('#image-redo-' + postid), true);
 468                         t.setDisabled(button, pop < history.length);
 469                 });
 470         },
 471
 472         redo : function(postid, nonce) {
 473                 var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
 474                         pop = t.intval( elem.val() ) - 1;
 475
 476                 if ( button.hasClass('disabled') )
 477                         return;
 478
 479                 elem.val(pop);
 480                 t.refreshEditor(postid, nonce, function() {
 481                         t.setDisabled($('#image-undo-' + postid), true);
 482                         t.setDisabled(button, pop > 0);
 483                 });
 484         },
 485
 486         setNumSelection : function(postid) {
 487                 var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
 488                         x = this.intval( elX.val() ), y = this.intval( elY.val() ),
 489                         img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
 490                         sizer = this.hold['sizer'], x1, y1, x2, y2, ias = this.iasapi;
 491
 492                 if ( x < 1 ) {
 493                         elX.val('');
 494                         return false;
 495                 }
 496
 497                 if ( y < 1 ) {
 498                         elY.val('');
 499                         return false;
 500                 }
 501
 502                 if ( x && y && ( sel = ias.getSelection() ) ) {
 503                         x2 = sel.x1 + Math.round( x * sizer );
 504                         y2 = sel.y1 + Math.round( y * sizer );
 505                         x1 = sel.x1;
 506                         y1 = sel.y1;
 507
 508                         if ( x2 > imgw ) {
 509                                 x1 = 0;
 510                                 x2 = imgw;
 511                                 elX.val( Math.round( x2 / sizer ) );
 512                         }
 513
 514                         if ( y2 > imgh ) {
 515                                 y1 = 0;
 516                                 y2 = imgh;
 517                                 elY.val( Math.round( y2 / sizer ) );
 518                         }
 519
 520                         ias.setSelection( x1, y1, x2, y2 );
 521                         ias.update();
 522                         this.setCropSelection(postid, ias.getSelection());
 523                 }
 524         },
 525
 526         round : function(num) {
 527                 var s;
 528                 num = Math.round(num);
 529
 530                 if ( this.hold.sizer > 0.6 )
 531                         return num;
 532
 533                 s = num.toString().slice(-1);
 534
 535                 if ( '1' == s )
 536                         return num - 1;
 537                 else if ( '9' == s )
 538                         return num + 1;
 539
 540                 return num;
 541         },
 542
 543         setRatioSelection : function(postid, n, el) {
 544                 var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
 545                         y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
 546                         h = $('#image-preview-' + postid).height();
 547
 548                 if ( !this.intval( $(el).val() ) ) {
 549                         $(el).val('');
 550                         return;
 551                 }
 552
 553                 if ( x && y ) {
 554                         this.iasapi.setOptions({
 555                                 aspectRatio: x + ':' + y
 556                         });
 557
 558                         if ( sel = this.iasapi.getSelection(true) ) {
 559                                 r = Math.ceil( sel.y1 + ((sel.x2 - sel.x1) / (x / y)) );
 560
 561                                 if ( r > h ) {
 562                                         r = h;
 563                                         if ( n )
 564                                                 $('#imgedit-crop-height-' + postid).val('');
 565                                         else
 566                                                 $('#imgedit-crop-width-' + postid).val('');
 567                                 }
 568
 569                                 this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
 570                                 this.iasapi.update();
 571                         }
 572                 }
 573         }
 574 }
 575 })(jQuery);