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   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).attr('disabled', 'disabled');
  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() != '') ? this.intval( w.val() / this.hold['xy_ratio'] ) : '';
  76              h.val( h1 );
  77          } else {
  78              w1 = (h.val() != '') ? this.intval( 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          img.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).attr('disabled', 'disabled');
 182  
 183              t.toggleEditor(postid, 0);
 184          }).attr('src', ajaxurl + '?' + $.param(data));
 185      },
 186  
 187      action : function(postid, nonce, action) {
 188          var t = this, data, w, h, fw, fh;
 189  
 190          if ( t.notsaved(postid) )
 191              return false;
 192  
 193          data = {
 194              'action': 'image-editor',
 195              '_ajax_nonce': nonce,
 196              'postid': postid
 197          };
 198  
 199          if ( 'scale' == action ) {
 200              w = $('#imgedit-scale-width-' + postid),
 201              h = $('#imgedit-scale-height-' + postid),
 202              fw = t.intval(w.val()),
 203              fh = t.intval(h.val());
 204  
 205              if ( fw < 1 ) {
 206                  w.focus();
 207                  return false;;
 208              } else if ( fh < 1 ) {
 209                  h.focus();
 210                  return false;;
 211              }
 212  
 213              if ( fw == t.hold.ow || fh == t.hold.oh )
 214                  return false;
 215  
 216              data['do'] = 'scale';
 217              data['fwidth'] = fw;
 218              data['fheight'] = fh;
 219          } else if ( 'restore' == action ) {
 220              data['do'] = 'restore';
 221          } else {
 222              return false;
 223          }
 224  
 225          t.toggleEditor(postid, 1);
 226          $.post(ajaxurl, data, function(r) {
 227              $('#image-editor-' + postid).empty().append(r);
 228              t.toggleEditor(postid, 0);
 229          });
 230      },
 231  
 232      save : function(postid, nonce) {
 233          var data, target = this.getTarget(postid), history = this.filterHistory(postid, 0);
 234  
 235          if ( '' == history )
 236              return false;
 237  
 238          this.toggleEditor(postid, 1);
 239          data = {
 240              'action': 'image-editor',
 241              '_ajax_nonce': nonce,
 242              'postid': postid,
 243              'history': history,
 244              'target': target,
 245              'do': 'save'
 246          };
 247  
 248          $.post(ajaxurl, data, function(r) {
 249              var ret = JSON.parse(r);
 250  
 251              if ( ret.error ) {
 252                  $('#imgedit-response-' + postid).html('<div class="error"><p>' + ret.error + '</p><div>');
 253                  imageEdit.close(postid);
 254                  return;
 255              }
 256  
 257              if ( ret.fw && ret.fh )
 258                  $('#media-dims-' + postid).html( ret.fw + ' &times; ' + ret.fh );
 259  
 260              if ( ret.thumbnail )
 261                  $('.thumbnail', '#thumbnail-head-' + postid).attr('src', ''+ret.thumbnail);
 262  
 263              if ( ret.msg )
 264                  $('#imgedit-response-' + postid).html('<div class="updated"><p>' + ret.msg + '</p></div>');
 265  
 266              imageEdit.close(postid);
 267          });
 268      },
 269  
 270      open : function(postid, nonce) {
 271          var data, elem = $('#image-editor-' + postid), head = $('#media-head-' + postid),
 272              btn = $('#imgedit-open-btn-' + postid), spin = btn.siblings('img');
 273  
 274          btn.attr('disabled', 'disabled');
 275          spin.css('visibility', 'visible');
 276  
 277          data = {
 278              'action': 'image-editor',
 279              '_ajax_nonce': nonce,
 280              'postid': postid,
 281              'do': 'open'
 282          };
 283  
 284          elem.load(ajaxurl, data, function() {
 285              elem.fadeIn('fast');
 286              head.fadeOut('fast', function(){
 287                  btn.removeAttr('disabled');
 288                  spin.css('visibility', 'hidden');
 289              });
 290          });
 291      },
 292  
 293      imgLoaded : function(postid) {
 294          var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);
 295  
 296          this.initCrop(postid, img, parent);
 297          this.setCropSelection(postid, 0);
 298          this.toggleEditor(postid, 0);
 299      },
 300  
 301      initCrop : function(postid, image, parent) {
 302          var t = this, selW = $('#imgedit-sel-width-' + postid),
 303              selH = $('#imgedit-sel-height-' + postid);
 304  
 305          t.iasapi = $(image).imgAreaSelect({
 306              parent: parent,
 307              instance: true,
 308              handles: true,
 309              keys: true,
 310              minWidth: 3,
 311              minHeight: 3,
 312  
 313              onInit: function(img, c) {
 314                  parent.children().mousedown(function(e){
 315                      var ratio = false, sel, defRatio;
 316  
 317                      if ( e.shiftKey ) {
 318                          sel = t.iasapi.getSelection();
 319                          defRatio = t.getSelRatio(postid);
 320                          ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
 321                      }
 322  
 323                      t.iasapi.setOptions({
 324                          aspectRatio: ratio
 325                      });
 326                  });
 327              },
 328  
 329              onSelectStart: function(img, c) {
 330                  imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
 331              },
 332  
 333              onSelectEnd: function(img, c) {
 334                  imageEdit.setCropSelection(postid, c);
 335              },
 336  
 337              onSelectChange: function(img, c) {
 338                  var sizer = imageEdit.hold.sizer;
 339                  selW.val( imageEdit.round(c.width / sizer) );
 340                  selH.val( imageEdit.round(c.height / sizer) );
 341              }
 342          });
 343      },
 344  
 345      setCropSelection : function(postid, c) {
 346          var sel, min = $('#imgedit-minthumb-' + postid).val() || '128:128',
 347              sizer = this.hold['sizer'];
 348              min = min.split(':');
 349              c = c || 0;
 350  
 351          if ( !c || ( c.width < 3 && c.height < 3 ) ) {
 352              this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 353              this.setDisabled($('#imgedit-crop-sel-' + postid), 0);
 354              $('#imgedit-sel-width-' + postid).val('');
 355              $('#imgedit-sel-height-' + postid).val('');
 356              $('#imgedit-selection-' + postid).val('');
 357              return false;
 358          }
 359  
 360          if ( c.width < (min[0] * sizer) && c.height < (min[1] * sizer) ) {
 361              this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 362              $('#imgedit-selection-' + postid).val('');
 363              return false;
 364          }
 365  
 366          sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
 367          this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
 368          $('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
 369      },
 370  
 371      close : function(postid, warn) {
 372          warn = warn || false;
 373  
 374          if ( warn && this.notsaved(postid) )
 375              return false;
 376  
 377          this.iasapi = {};
 378          this.hold = {};
 379          $('#image-editor-' + postid).fadeOut('fast', function() {
 380              $('#media-head-' + postid).fadeIn('fast');
 381              $(this).empty();
 382          });
 383      },
 384  
 385      notsaved : function(postid) {
 386          var h = $('#imgedit-history-' + postid).val(),
 387              history = (h != '') ? JSON.parse(h) : new Array(),
 388              pop = this.intval( $('#imgedit-undone-' + postid).val() );
 389  
 390          if ( pop < history.length ) {
 391              if ( confirm( $('#imgedit-leaving-' + postid).html() ) )
 392                  return false;
 393              return true;
 394          }
 395          return false;
 396      },
 397  
 398      addStep : function(op, postid, nonce) {
 399          var t = this, elem = $('#imgedit-history-' + postid),
 400          history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array(),
 401          undone = $('#imgedit-undone-' + postid),
 402          pop = t.intval(undone.val());
 403  
 404          while ( pop > 0 ) {
 405              history.pop();
 406              pop--;
 407          }
 408          undone.val(0); // reset
 409  
 410          history.push(op);
 411          elem.val( JSON.stringify(history) );
 412  
 413          t.refreshEditor(postid, nonce, function() {
 414              t.setDisabled($('#image-undo-' + postid), true);
 415              t.setDisabled($('#image-redo-' + postid), false);
 416          });
 417      },
 418  
 419      rotate : function(angle, postid, nonce, t) {
 420          if ( $(t).hasClass('disabled') )
 421              return false;
 422  
 423          this.addStep({ 'r': { 'r': angle, 'fw': this.hold['h'], 'fh': this.hold['w'] }}, postid, nonce);
 424      },
 425  
 426      flip : function (axis, postid, nonce, t) {
 427          if ( $(t).hasClass('disabled') )
 428              return false;
 429  
 430          this.addStep({ 'f': { 'f': axis, 'fw': this.hold['w'], 'fh': this.hold['h'] }}, postid, nonce);
 431      },
 432  
 433      crop : function (postid, nonce, t) {
 434          var sel = $('#imgedit-selection-' + postid).val(),
 435              w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
 436              h = this.intval( $('#imgedit-sel-height-' + postid).val() );
 437  
 438          if ( $(t).hasClass('disabled') || sel == '' )
 439              return false;
 440  
 441          sel = JSON.parse(sel);
 442          if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
 443              sel['fw'] = w;
 444              sel['fh'] = h;
 445              this.addStep({ 'c': sel }, postid, nonce);
 446          }
 447      },
 448  
 449      undo : function (postid, nonce) {
 450          var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
 451              pop = t.intval( elem.val() ) + 1;
 452  
 453          if ( button.hasClass('disabled') )
 454              return;
 455  
 456          elem.val(pop);
 457          t.refreshEditor(postid, nonce, function() {
 458              var elem = $('#imgedit-history-' + postid),
 459              history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array();
 460  
 461              t.setDisabled($('#image-redo-' + postid), true);
 462              t.setDisabled(button, pop < history.length);
 463          });
 464      },
 465  
 466      redo : function(postid, nonce) {
 467          var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
 468              pop = t.intval( elem.val() ) - 1;
 469  
 470          if ( button.hasClass('disabled') )
 471              return;
 472  
 473          elem.val(pop);
 474          t.refreshEditor(postid, nonce, function() {
 475              t.setDisabled($('#image-undo-' + postid), true);
 476              t.setDisabled(button, pop > 0);
 477          });
 478      },
 479  
 480      setNumSelection : function(postid) {
 481          var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
 482              x = this.intval( elX.val() ), y = this.intval( elY.val() ),
 483              img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
 484              sizer = this.hold['sizer'], x1, y1, x2, y2, ias = this.iasapi;
 485  
 486          if ( x < 1 ) {
 487              elX.val('');
 488              return false;
 489          }
 490  
 491          if ( y < 1 ) {
 492              elY.val('');
 493              return false;
 494          }
 495  
 496          if ( x && y && ( sel = ias.getSelection() ) ) {
 497              x2 = sel.x1 + Math.round( x * sizer );
 498              y2 = sel.y1 + Math.round( y * sizer );
 499              x1 = sel.x1;
 500              y1 = sel.y1;
 501  
 502              if ( x2 > imgw ) {
 503                  x1 = 0;
 504                  x2 = imgw;
 505                  elX.val( Math.round( x2 / sizer ) );
 506              }
 507  
 508              if ( y2 > imgh ) {
 509                  y1 = 0;
 510                  y2 = imgh;
 511                  elY.val( Math.round( y2 / sizer ) );
 512              }
 513  
 514              ias.setSelection( x1, y1, x2, y2 );
 515              ias.update();
 516              this.setCropSelection(postid, ias.getSelection());
 517          }
 518      },
 519  
 520      round : function(num) {
 521          var s;
 522          num = Math.round(num);
 523  
 524          if ( this.hold.sizer > 0.6 )
 525              return num;
 526  
 527          s = num.toString().slice(-1);
 528  
 529          if ( '1' == s )
 530              return num - 1;
 531          else if ( '9' == s )
 532              return num + 1;
 533  
 534          return num;
 535      },
 536  
 537      setRatioSelection : function(postid, n, el) {
 538          var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
 539              y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
 540              h = $('#image-preview-' + postid).height();
 541  
 542          if ( !this.intval( $(el).val() ) ) {
 543              $(el).val('');
 544              return;
 545          }
 546  
 547          if ( x && y ) {
 548              this.iasapi.setOptions({
 549                  aspectRatio: x + ':' + y
 550              });
 551  
 552              if ( sel = this.iasapi.getSelection(true) ) {
 553                  r = Math.ceil( sel.y1 + ((sel.x2 - sel.x1) / (x / y)) );
 554  
 555                  if ( r > h ) {
 556                      r = h;
 557                      if ( n )
 558                          $('#imgedit-crop-height-' + postid).val('');
 559                      else
 560                          $('#imgedit-crop-width-' + postid).val('');
 561                  }
 562  
 563                  this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
 564                  this.iasapi.update();
 565              }
 566          }
 567      }
 568  }
 569  })(jQuery);