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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).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() != '') ? 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).prop('disabled', true);
 182  
 183              t.toggleEditor(postid, 0);
 184          }).error(function(){
 185              $('#imgedit-crop-' + postid).empty().append('<div class="error"><p>' + imageEditL10n.error + '</p></div>');
 186              t.toggleEditor(postid, 0);
 187          }).attr('src', ajaxurl + '?' + $.param(data));
 188      },
 189  
 190      action : function(postid, nonce, action) {
 191          var t = this, data, w, h, fw, fh;
 192  
 193          if ( t.notsaved(postid) )
 194              return false;
 195  
 196          data = {
 197              'action': 'image-editor',
 198              '_ajax_nonce': nonce,
 199              'postid': postid
 200          };
 201  
 202          if ( 'scale' == action ) {
 203              w = $('#imgedit-scale-width-' + postid),
 204              h = $('#imgedit-scale-height-' + postid),
 205              fw = t.intval(w.val()),
 206              fh = t.intval(h.val());
 207  
 208              if ( fw < 1 ) {
 209                  w.focus();
 210                  return false;
 211              } else if ( fh < 1 ) {
 212                  h.focus();
 213                  return false;
 214              }
 215  
 216              if ( fw == t.hold.ow || fh == t.hold.oh )
 217                  return false;
 218  
 219              data['do'] = 'scale';
 220              data['fwidth'] = fw;
 221              data['fheight'] = fh;
 222          } else if ( 'restore' == action ) {
 223              data['do'] = 'restore';
 224          } else {
 225              return false;
 226          }
 227  
 228          t.toggleEditor(postid, 1);
 229          $.post(ajaxurl, data, function(r) {
 230              $('#image-editor-' + postid).empty().append(r);
 231              t.toggleEditor(postid, 0);
 232          });
 233      },
 234  
 235      save : function(postid, nonce) {
 236          var data, target = this.getTarget(postid), history = this.filterHistory(postid, 0);
 237  
 238          if ( '' == history )
 239              return false;
 240  
 241          this.toggleEditor(postid, 1);
 242          data = {
 243              'action': 'image-editor',
 244              '_ajax_nonce': nonce,
 245              'postid': postid,
 246              'history': history,
 247              'target': target,
 248              'do': 'save'
 249          };
 250  
 251          $.post(ajaxurl, data, function(r) {
 252              var ret = JSON.parse(r);
 253  
 254              if ( ret.error ) {
 255                  $('#imgedit-response-' + postid).html('<div class="error"><p>' + ret.error + '</p><div>');
 256                  imageEdit.close(postid);
 257                  return;
 258              }
 259  
 260              if ( ret.fw && ret.fh )
 261                  $('#media-dims-' + postid).html( ret.fw + ' &times; ' + ret.fh );
 262  
 263              if ( ret.thumbnail )
 264                  $('.thumbnail', '#thumbnail-head-' + postid).attr('src', ''+ret.thumbnail);
 265  
 266              if ( ret.msg )
 267                  $('#imgedit-response-' + postid).html('<div class="updated"><p>' + ret.msg + '</p></div>');
 268  
 269              imageEdit.close(postid);
 270          });
 271      },
 272  
 273      open : function(postid, nonce) {
 274          var data, elem = $('#image-editor-' + postid), head = $('#media-head-' + postid),
 275              btn = $('#imgedit-open-btn-' + postid), spin = btn.siblings('img');
 276  
 277          btn.prop('disabled', true);
 278          spin.css('visibility', 'visible');
 279  
 280          data = {
 281              'action': 'image-editor',
 282              '_ajax_nonce': nonce,
 283              'postid': postid,
 284              'do': 'open'
 285          };
 286  
 287          elem.load(ajaxurl, data, function() {
 288              elem.fadeIn('fast');
 289              head.fadeOut('fast', function(){
 290                  btn.removeAttr('disabled');
 291                  spin.css('visibility', 'hidden');
 292              });
 293          });
 294      },
 295  
 296      imgLoaded : function(postid) {
 297          var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);
 298  
 299          this.initCrop(postid, img, parent);
 300          this.setCropSelection(postid, 0);
 301          this.toggleEditor(postid, 0);
 302      },
 303  
 304      initCrop : function(postid, image, parent) {
 305          var t = this, selW = $('#imgedit-sel-width-' + postid),
 306              selH = $('#imgedit-sel-height-' + postid);
 307  
 308          t.iasapi = $(image).imgAreaSelect({
 309              parent: parent,
 310              instance: true,
 311              handles: true,
 312              keys: true,
 313              minWidth: 3,
 314              minHeight: 3,
 315  
 316              onInit: function(img, c) {
 317                  parent.children().mousedown(function(e){
 318                      var ratio = false, sel, defRatio;
 319  
 320                      if ( e.shiftKey ) {
 321                          sel = t.iasapi.getSelection();
 322                          defRatio = t.getSelRatio(postid);
 323                          ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
 324                      }
 325  
 326                      t.iasapi.setOptions({
 327                          aspectRatio: ratio
 328                      });
 329                  });
 330              },
 331  
 332              onSelectStart: function(img, c) {
 333                  imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
 334              },
 335  
 336              onSelectEnd: function(img, c) {
 337                  imageEdit.setCropSelection(postid, c);
 338              },
 339  
 340              onSelectChange: function(img, c) {
 341                  var sizer = imageEdit.hold.sizer;
 342                  selW.val( imageEdit.round(c.width / sizer) );
 343                  selH.val( imageEdit.round(c.height / sizer) );
 344              }
 345          });
 346      },
 347  
 348      setCropSelection : function(postid, c) {
 349          var sel, min = $('#imgedit-minthumb-' + postid).val() || '128:128',
 350              sizer = this.hold['sizer'];
 351              min = min.split(':');
 352              c = c || 0;
 353  
 354          if ( !c || ( c.width < 3 && c.height < 3 ) ) {
 355              this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 356              this.setDisabled($('#imgedit-crop-sel-' + postid), 0);
 357              $('#imgedit-sel-width-' + postid).val('');
 358              $('#imgedit-sel-height-' + postid).val('');
 359              $('#imgedit-selection-' + postid).val('');
 360              return false;
 361          }
 362  
 363          if ( c.width < (min[0] * sizer) && c.height < (min[1] * sizer) ) {
 364              this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
 365              $('#imgedit-selection-' + postid).val('');
 366              return false;
 367          }
 368  
 369          sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
 370          this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
 371          $('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
 372      },
 373  
 374      close : function(postid, warn) {
 375          warn = warn || false;
 376  
 377          if ( warn && this.notsaved(postid) )
 378              return false;
 379  
 380          this.iasapi = {};
 381          this.hold = {};
 382          $('#image-editor-' + postid).fadeOut('fast', function() {
 383              $('#media-head-' + postid).fadeIn('fast');
 384              $(this).empty();
 385          });
 386      },
 387  
 388      notsaved : function(postid) {
 389          var h = $('#imgedit-history-' + postid).val(),
 390              history = (h != '') ? JSON.parse(h) : new Array(),
 391              pop = this.intval( $('#imgedit-undone-' + postid).val() );
 392  
 393          if ( pop < history.length ) {
 394              if ( confirm( $('#imgedit-leaving-' + postid).html() ) )
 395                  return false;
 396              return true;
 397          }
 398          return false;
 399      },
 400  
 401      addStep : function(op, postid, nonce) {
 402          var t = this, elem = $('#imgedit-history-' + postid),
 403          history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array(),
 404          undone = $('#imgedit-undone-' + postid),
 405          pop = t.intval(undone.val());
 406  
 407          while ( pop > 0 ) {
 408              history.pop();
 409              pop--;
 410          }
 411          undone.val(0); // reset
 412  
 413          history.push(op);
 414          elem.val( JSON.stringify(history) );
 415  
 416          t.refreshEditor(postid, nonce, function() {
 417              t.setDisabled($('#image-undo-' + postid), true);
 418              t.setDisabled($('#image-redo-' + postid), false);
 419          });
 420      },
 421  
 422      rotate : function(angle, postid, nonce, t) {
 423          if ( $(t).hasClass('disabled') )
 424              return false;
 425  
 426          this.addStep({ 'r': { 'r': angle, 'fw': this.hold['h'], 'fh': this.hold['w'] }}, postid, nonce);
 427      },
 428  
 429      flip : function (axis, postid, nonce, t) {
 430          if ( $(t).hasClass('disabled') )
 431              return false;
 432  
 433          this.addStep({ 'f': { 'f': axis, 'fw': this.hold['w'], 'fh': this.hold['h'] }}, postid, nonce);
 434      },
 435  
 436      crop : function (postid, nonce, t) {
 437          var sel = $('#imgedit-selection-' + postid).val(),
 438              w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
 439              h = this.intval( $('#imgedit-sel-height-' + postid).val() );
 440  
 441          if ( $(t).hasClass('disabled') || sel == '' )
 442              return false;
 443  
 444          sel = JSON.parse(sel);
 445          if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
 446              sel['fw'] = w;
 447              sel['fh'] = h;
 448              this.addStep({ 'c': sel }, postid, nonce);
 449          }
 450      },
 451  
 452      undo : function (postid, nonce) {
 453          var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
 454              pop = t.intval( elem.val() ) + 1;
 455  
 456          if ( button.hasClass('disabled') )
 457              return;
 458  
 459          elem.val(pop);
 460          t.refreshEditor(postid, nonce, function() {
 461              var elem = $('#imgedit-history-' + postid),
 462              history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array();
 463  
 464              t.setDisabled($('#image-redo-' + postid), true);
 465              t.setDisabled(button, pop < history.length);
 466          });
 467      },
 468  
 469      redo : function(postid, nonce) {
 470          var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
 471              pop = t.intval( elem.val() ) - 1;
 472  
 473          if ( button.hasClass('disabled') )
 474              return;
 475  
 476          elem.val(pop);
 477          t.refreshEditor(postid, nonce, function() {
 478              t.setDisabled($('#image-undo-' + postid), true);
 479              t.setDisabled(button, pop > 0);
 480          });
 481      },
 482  
 483      setNumSelection : function(postid) {
 484          var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
 485              x = this.intval( elX.val() ), y = this.intval( elY.val() ),
 486              img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
 487              sizer = this.hold['sizer'], x1, y1, x2, y2, ias = this.iasapi;
 488  
 489          if ( x < 1 ) {
 490              elX.val('');
 491              return false;
 492          }
 493  
 494          if ( y < 1 ) {
 495              elY.val('');
 496              return false;
 497          }
 498  
 499          if ( x && y && ( sel = ias.getSelection() ) ) {
 500              x2 = sel.x1 + Math.round( x * sizer );
 501              y2 = sel.y1 + Math.round( y * sizer );
 502              x1 = sel.x1;
 503              y1 = sel.y1;
 504  
 505              if ( x2 > imgw ) {
 506                  x1 = 0;
 507                  x2 = imgw;
 508                  elX.val( Math.round( x2 / sizer ) );
 509              }
 510  
 511              if ( y2 > imgh ) {
 512                  y1 = 0;
 513                  y2 = imgh;
 514                  elY.val( Math.round( y2 / sizer ) );
 515              }
 516  
 517              ias.setSelection( x1, y1, x2, y2 );
 518              ias.update();
 519              this.setCropSelection(postid, ias.getSelection());
 520          }
 521      },
 522  
 523      round : function(num) {
 524          var s;
 525          num = Math.round(num);
 526  
 527          if ( this.hold.sizer > 0.6 )
 528              return num;
 529  
 530          s = num.toString().slice(-1);
 531  
 532          if ( '1' == s )
 533              return num - 1;
 534          else if ( '9' == s )
 535              return num + 1;
 536  
 537          return num;
 538      },
 539  
 540      setRatioSelection : function(postid, n, el) {
 541          var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
 542              y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
 543              h = $('#image-preview-' + postid).height();
 544  
 545          if ( !this.intval( $(el).val() ) ) {
 546              $(el).val('');
 547              return;
 548          }
 549  
 550          if ( x && y ) {
 551              this.iasapi.setOptions({
 552                  aspectRatio: x + ':' + y
 553              });
 554  
 555              if ( sel = this.iasapi.getSelection(true) ) {
 556                  r = Math.ceil( sel.y1 + ((sel.x2 - sel.x1) / (x / y)) );
 557  
 558                  if ( r > h ) {
 559                      r = h;
 560                      if ( n )
 561                          $('#imgedit-crop-height-' + postid).val('');
 562                      else
 563                          $('#imgedit-crop-width-' + postid).val('');
 564                  }
 565  
 566                  this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
 567                  this.iasapi.update();
 568              }
 569          }
 570      }
 571  }
 572  })(jQuery);