include/slideshow.js

   1 \r
   2 /**************************************************************\r
   3 \r
   4         Script          : slideShow\r
   5         Version         : 1.3\r
   6         Authors         : Samuel Birch\r
   7         Desc            : transitions between images\r
   8         Licence         : Open Source MIT Licence\r
   9 \r
  10 **************************************************************/\r
  11 \r
  12 var slideShow = new Class({\r
  13         \r
  14         getOptions: function(){\r
  15                 return {\r
  16                         effect: 'fade', //fade|wipe|slide|random\r
  17                         duration: 2000,\r
  18                         transition: Fx.Transitions.linear,\r
  19                         direction: 'right', //top|right|bottom|left|random\r
  20                         //color: false,\r
  21                         wait: 5000,\r
  22                         loop: true,\r
  23                         thumbnails: false,\r
  24                         thumbnailCls: 'outline',\r
  25                         backgroundSlider: false, //change to be an instance.\r
  26                         loadingCls: 'loading',\r
  27                         onClick: false\r
  28                 };\r
  29         },\r
  30 \r
  31         initialize: function(container, images, options){\r
  32                 this.setOptions(this.getOptions(), options);\r
  33                 \r
  34                 this.container = $(container);\r
  35                 this.container.setStyles({\r
  36                         position: 'relative',\r
  37                         overflow: 'hidden'\r
  38                 });\r
  39                 if(this.options.onClick){\r
  40                         this.container.addEvent('click', function(){\r
  41                                 this.options.onClick(this.imageLoaded);\r
  42                         }.bind(this));\r
  43                 }\r
  44                 \r
  45                 \r
  46                 this.imagesHolder = new Element('div').setStyles({\r
  47                         position: 'absolute',\r
  48                         overflow: 'hidden',\r
  49                         top: this.container.getStyle('height'),\r
  50                         left: 0,\r
  51                         width: '0px',\r
  52                         height: '0px',\r
  53                         display: 'none'\r
  54                 }).injectInside(this.container);\r
  55                 \r
  56                 /*\r
  57                 if($type(images) == 'string' && !this.options.thumbnails){\r
  58                         var imageList = [];\r
  59                         $$('.'+images).each(function(el){\r
  60                                 imageList.push(el.src);\r
  61                                 el.injectInside(this.imagesHolder);\r
  62                         },this);\r
  63                         this.images = imageList;\r
  64                         \r
  65                 }else if($type(images) == 'string' && this.options.thumbnails){\r
  66                         var imageList = [];\r
  67                         var srcList = [];\r
  68                         this.thumbnails = $$('.'+images);\r
  69                         this.thumbnails.each(function(el,i){\r
  70                                 srcList.push(el.href);\r
  71                                 imageList.push(el.getElement('img'));\r
  72                                 el.href = 'javascript:;';\r
  73                                 el.addEvent('click',function(){\r
  74                                         this.stop();\r
  75                                         this.play(i);                            \r
  76                                 }.bind(this,el,i));\r
  77                         },this);\r
  78                         this.images = srcList;\r
  79                         this.thumbnailImages = imageList;\r
  80                         \r
  81                         if(this.options.backgroundSlider){\r
  82                                 this.bgSlider = new BackgroundSlider(this.thumbnailImages,{mouseOver: false, duration: this.options.duration, className: this.options.thumbnailCls, padding:{top:0,right:-2,bottom:-2,left:0}});\r
  83                                 this.bgSlider.set(this.thumbnailImages[0]);\r
  84                         }\r
  85                 \r
  86                 }else{\r
  87                 */\r
  88                         this.images = images;\r
  89                 /*\r
  90                 }\r
  91                 */\r
  92                 \r
  93                 this.loading = new Element('div').addClass(this.options.loadingCls).setStyles({\r
  94                         position: 'absolute',\r
  95                         top: 0,\r
  96                         left: 0,\r
  97                         zIndex: 3,\r
  98                         display: 'none',\r
  99                         width: this.container.getStyle('width'),\r
 100                         height: this.container.getStyle('height')\r
 101                 }).injectInside(this.container);\r
 102                 \r
 103                 this.oldImage = new Element('div').setStyles({\r
 104                         position: 'absolute',\r
 105                         overflow: 'hidden',\r
 106                         top: 0,\r
 107                         left: 0,\r
 108                         opacity: 0,\r
 109                         width: this.container.getStyle('width'),\r
 110                         height: this.container.getStyle('height')\r
 111                 }).injectInside(this.container);\r
 112                 \r
 113                 this.newImage = this.oldImage.clone();\r
 114                 this.newImage.injectInside(this.container);\r
 115                 \r
 116                 \r
 117                 \r
 118                 this.timer = 0;\r
 119                 this.image = -1;\r
 120                 this.imageLoaded = 0;\r
 121                 this.stopped = true;\r
 122                 this.started = false;\r
 123                 this.animating = false;\r
 124                 window.addEvent('resize', this.reshow.bind(this));\r
 125                 window.addEvent('scroll', this.reshow.bind(this));\r
 126         },\r
 127         \r
 128         load: function(){\r
 129                 $clear(this.timer);\r
 130                 this.loading.setStyle('display','block');\r
 131                 this.image++;\r
 132                 var i;\r
 133                 var width;\r
 134                 var height;\r
 135                 var img;\r
 136                 for (i=0;i<this.images[this.image].length;i++) {\r
 137                         width = this.images[this.image][i][0];\r
 138                         height = this.images[this.image][i][1];\r
 139                         img = this.images[this.image][i][2];\r
 140                         if (width >= this.width || height >= this.height) {\r
 141                                 break;\r
 142                         }\r
 143                 }\r
 144                 /* alert('req1 image '+img); */\r
 145                 delete this.imageObj;\r
 146                 \r
 147                 doLoad = true;\r
 148                 this.imagesHolder.getElements('img').each(function(el){\r
 149                         var src = this.images[this.image][i][2];\r
 150                         /* alert('req2 image '+src); */\r
 151                         if(el.src == src){\r
 152                                 this.imageObj = el;\r
 153                                 doLoad = false;\r
 154                                 this.add = false;\r
 155                                 this.show();\r
 156                         }\r
 157                 },this);\r
 158                 \r
 159                 if(doLoad){\r
 160                         this.add = true;\r
 161                         this.imageObj = new Asset.image(img, {onload: this.show.bind(this)});\r
 162                         this.imageObj.set('width', width).set('height', height);\r
 163                 }\r
 164                 \r
 165         },\r
 166 \r
 167         restyle: function(imgobj){\r
 168                 var width = imgobj.get('width');\r
 169                 var height = imgobj.get('height');\r
 170                 var vfactor = this.width/width;\r
 171                 var hfactor = this.height/height;\r
 172                 var factor = 1;\r
 173                 if (vfactor < factor) { factor = vfactor; }\r
 174                 if (hfactor < factor) { factor = hfactor; }\r
 175                 factor *= .95;\r
 176                 height = Math.round(height * factor);\r
 177                 width = Math.round(width * factor);\r
 178                 var topoff = (this.height - height)/2;\r
 179                 var leftoff = (this.width - width)/2;\r
 180                 /* alert('dim: '+width+'x'+height+'+'+leftoff+'+'+topoff); */\r
 181                 imgobj.setStyles({\r
 182                         position: 'absolute',\r
 183                         top: topoff,\r
 184                         left: leftoff,\r
 185                         width: width,\r
 186                         height: height,\r
 187                 });\r
 188         },\r
 189 \r
 190         show: function(add){\r
 191                 \r
 192                 this.restyle(this.imageObj);\r
 193                 var oimg = this.oldImage.getElement('img');\r
 194                 if (oimg) {\r
 195                         this.restyle(oimg);\r
 196                 }\r
 197 \r
 198                 if(this.add){\r
 199                         this.imageObj.injectInside(this.imagesHolder);\r
 200                 }\r
 201                 \r
 202                 this.newImage.setStyles({\r
 203                         zIndex: 1,\r
 204                         opacity: 0\r
 205                 });\r
 206                 var img = this.newImage.getElement('img');\r
 207                 if(img){\r
 208                         this.imageObj.clone().replaces(img);\r
 209                         //img.replaces(this.imageObj.clone());\r
 210                 }else{\r
 211                         var obj = this.imageObj.clone();\r
 212                         obj.injectInside(this.newImage);\r
 213                 }\r
 214 \r
 215                 this.imageLoaded = this.image;\r
 216                 this.loading.setStyle('display','none');\r
 217                 this.effect();\r
 218         },\r
 219         \r
 220         wait: function(){\r
 221                 this.timer = this.load.delay(this.options.wait,this);\r
 222         },\r
 223         \r
 224         play: function(num){\r
 225                 this.position();\r
 226                 if(this.stopped){\r
 227                         if(num > -1){this.image = num-1};\r
 228                         if(this.image < this.images.length){\r
 229                                 this.stopped = false;\r
 230                                 if(this.started){\r
 231                                         this.next();\r
 232                                 }else{\r
 233                                         this.load();\r
 234                                 }\r
 235                                 this.started = true;\r
 236                         }\r
 237                 }\r
 238         },\r
 239         \r
 240         stop: function(){\r
 241                 $clear(this.timer);\r
 242                 this.stopped = true;\r
 243         },\r
 244 \r
 245         quit: function(){\r
 246                 this.stop();\r
 247         /* does not work */\r
 248                 var oimg = this.oldImage.getElement('img');\r
 249                 if (oimg) {\r
 250                         oimg.dispose();\r
 251                         delete oimg;\r
 252                 }\r
 253         },\r
 254         \r
 255         next: function(wait){\r
 256                 var doNext = true;\r
 257                 if(wait && this.stopped){\r
 258                         doNext = false;\r
 259                 }\r
 260                 if(this.animating){\r
 261                         doNext = false;\r
 262                 }\r
 263                 if(doNext){\r
 264                         this.cloneImage();\r
 265                         $clear(this.timer);\r
 266                         /* console.log(this.image) */\r
 267                         if(this.image < this.images.length-1){\r
 268                                 if(wait){\r
 269                                         this.wait();\r
 270                                 }else{\r
 271                                         this.load();    \r
 272                                 }\r
 273                         }else{\r
 274                                 if(this.options.loop){\r
 275                                         this.image = -1;\r
 276                                         if(wait){\r
 277                                                 this.wait();\r
 278                                         }else{\r
 279                                                 this.load();    \r
 280                                         }\r
 281                                 }else{\r
 282                                         this.stopped = true;\r
 283                                 }\r
 284                         }\r
 285                 }\r
 286         },\r
 287         \r
 288         previous: function(){\r
 289                 if(this.imageLoaded == 0){\r
 290                         this.image = this.images.length-2;      \r
 291                 }else{\r
 292                         this.image = this.imageLoaded-2;\r
 293                 }\r
 294                 this.next();\r
 295         },\r
 296         \r
 297         cloneImage: function(){\r
 298                 var img = this.oldImage.getElement('img');\r
 299                 if(img){\r
 300                         this.imageObj.clone().replaces(img);\r
 301                         //img.replaces(this.imageObj.clone());\r
 302                 }else{\r
 303                         var obj = this.imageObj.clone();\r
 304                         obj.injectInside(this.oldImage);\r
 305                 }\r
 306                 \r
 307                 this.oldImage.setStyles({\r
 308                         zIndex: 0,\r
 309                         top: 0,\r
 310                         left: 0,\r
 311                         opacity: 1\r
 312                 });\r
 313                 \r
 314                 this.newImage.setStyles({opacity:0});\r
 315         },\r
 316         \r
 317         \r
 318         effect: function(){\r
 319                 this.animating = true;\r
 320                 this.effectObj = new Fx.Morph(this.newImage, {\r
 321                         duration: this.options.duration,\r
 322                         transition: this.options.transition\r
 323                 });\r
 324                 \r
 325                 var myFxTypes = ['fade','wipe','slide'];\r
 326                 var myFxDir = ['top','right','bottom','left'];\r
 327                 \r
 328                 if(this.options.effect == 'fade'){\r
 329                         this.fade();\r
 330                         \r
 331                 }else if(this.options.effect == 'wipe'){\r
 332                         if(this.options.direction == 'random'){\r
 333                                 this.setup(myFxDir[Math.floor(Math.random()*(3+1))]);\r
 334                         }else{\r
 335                                 this.setup(this.options.direction);\r
 336                         }\r
 337                         this.wipe();\r
 338                         \r
 339                 }else if(this.options.effect == 'slide'){\r
 340                         if(this.options.direction == 'random'){\r
 341                                 this.setup(myFxDir[Math.floor(Math.random()*(3+1))]);\r
 342                         }else{\r
 343                                 this.setup(this.options.direction);\r
 344                         }\r
 345                         this.slide();\r
 346                         \r
 347                 }else if(this.options.effect == 'random'){\r
 348                         var type = myFxTypes[Math.floor(Math.random()*(2+1))];\r
 349                         if(type != 'fade'){\r
 350                                 var dir = myFxDir[Math.floor(Math.random()*(3+1))];\r
 351                                 if(this.options.direction == 'random'){\r
 352                                         this.setup(dir);\r
 353                                 }else{\r
 354                                         this.setup(this.options.direction);\r
 355                                 }\r
 356                         }else{\r
 357                                 this.setup();\r
 358                         }\r
 359                         this[type]();\r
 360                 }\r
 361         },\r
 362         \r
 363         setup: function(dir){\r
 364                 if(dir == 'top'){\r
 365                         this.top = -this.height;\r
 366                         this.left = 0;\r
 367                         this.topOut = this.height;\r
 368                         this.leftOut = 0;\r
 369                         \r
 370                 }else if(dir == 'right'){\r
 371                         this.top = 0;\r
 372                         this.left = this.width;\r
 373                         this.topOut = 0;\r
 374                         this.leftOut = -this.width;\r
 375                         \r
 376                 }else if(dir == 'bottom'){\r
 377                         this.top = this.height;\r
 378                         this.left = 0;\r
 379                         this.topOut = -this.height;\r
 380                         this.leftOut = 0;\r
 381                         \r
 382                 }else if(dir == 'left'){\r
 383                         this.top = 0;\r
 384                         this.left = -this.width;\r
 385                         this.topOut = 0;\r
 386                         this.leftOut = this.width;\r
 387                         \r
 388                 }else{\r
 389                         this.top = 0;\r
 390                         this.left = 0;\r
 391                         this.topOut = 0;\r
 392                         this.leftOut = 0;\r
 393                 }\r
 394         },\r
 395         \r
 396         fade: function(){\r
 397                 this.effectObj.start({\r
 398                         opacity: [0,1]\r
 399                 });\r
 400                 this.resetAnimation.delay(this.options.duration+90,this);\r
 401                 if(!this.stopped){\r
 402                 this.next.delay(this.options.duration+100,this,true);\r
 403                 }\r
 404         },\r
 405         \r
 406         wipe: function(){\r
 407                 this.newImage.morph({\r
 408                         duration: this.options.duration,\r
 409                         transition: this.options.transition,\r
 410                         top: [0,this.topOut],\r
 411                         left: [0, this.leftOut]\r
 412                 })\r
 413                 this.effectObj.start({\r
 414                         top: [this.top,0],\r
 415                         left: [this.left,0],\r
 416                         opacity: [1,1]\r
 417                 },this);\r
 418                 this.resetAnimation.delay(this.options.duration+90,this);\r
 419                 if(!this.stopped){\r
 420                 this.next.delay(this.options.duration+100,this,true);\r
 421                 }\r
 422         },\r
 423         \r
 424         slide: function(){\r
 425                 this.effectObj.start({\r
 426                         top: [this.top,0],\r
 427                         left: [this.left,0],\r
 428                         opacity: [1,1]\r
 429                 },this);\r
 430                 this.resetAnimation.delay(this.options.duration+90,this);\r
 431                 if(!this.stopped){\r
 432                 this.next.delay(this.options.duration+100,this,true);\r
 433                 }\r
 434         },\r
 435         \r
 436         resetAnimation: function(){\r
 437                 this.animating = false;\r
 438         },\r
 439 \r
 440         position: function(){\r
 441                 var myCoords = this.container.getCoordinates();\r
 442                 this.width = myCoords.width;\r
 443                 this.height = myCoords.height;\r
 444                 /*\r
 445                 this.width = this.container.getStyle('width').toInt();\r
 446                 this.height = this.container.getStyle('height').toInt();\r
 447                 */\r
 448                 /* alert('container dim: '+this.width+'x'+this.height); */\r
 449         },\r
 450 \r
 451         reshow: function(){\r
 452                 this.position();\r
 453                 this.image--;\r
 454                 this.load();\r
 455         },\r
 456         \r
 457 });\r
 458 slideShow.implement(new Options);\r
 459 slideShow.implement(new Events);\r
 460 \r
 461 \r
 462 /*************************************************************/\r
 463 \r