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                 if (factor < 1) {\r
 177                         height = Math.round(height * factor);\r
 178                         width = Math.round(width * factor);\r
 179                 }\r
 180                 var topoff = (this.height - height)/2;\r
 181                 var leftoff = (this.width - width)/2;\r
 182                 /* alert('dim: '+width+'x'+height+'+'+leftoff+'+'+topoff); */\r
 183                 imgobj.setStyles({\r
 184                         position: 'absolute',\r
 185                         top: topoff,\r
 186                         left: leftoff,\r
 187                         width: width,\r
 188                         height: height,\r
 189                 });\r
 190         },\r
 191 \r
 192         show: function(add){\r
 193                 \r
 194                 this.restyle(this.imageObj);\r
 195                 var oimg = this.oldImage.getElement('img');\r
 196                 if (oimg) {\r
 197                         this.restyle(oimg);\r
 198                 }\r
 199 \r
 200                 if(this.add){\r
 201                         this.imageObj.injectInside(this.imagesHolder);\r
 202                 }\r
 203                 \r
 204                 this.newImage.setStyles({\r
 205                         zIndex: 1,\r
 206                         opacity: 0\r
 207                 });\r
 208                 var img = this.newImage.getElement('img');\r
 209                 if(img){\r
 210                         this.imageObj.clone().replaces(img);\r
 211                         //img.replaces(this.imageObj.clone());\r
 212                 }else{\r
 213                         var obj = this.imageObj.clone();\r
 214                         obj.injectInside(this.newImage);\r
 215                 }\r
 216 \r
 217                 this.imageLoaded = this.image;\r
 218                 this.loading.setStyle('display','none');\r
 219                 this.effect();\r
 220         },\r
 221         \r
 222         wait: function(){\r
 223                 this.timer = this.load.delay(this.options.wait,this);\r
 224         },\r
 225         \r
 226         play: function(num){\r
 227                 this.position();\r
 228                 if(this.stopped){\r
 229                         if(num > -1){this.image = num-1};\r
 230                         if(this.image < this.images.length){\r
 231                                 this.stopped = false;\r
 232                                 if(this.started){\r
 233                                         this.next();\r
 234                                 }else{\r
 235                                         this.load();\r
 236                                 }\r
 237                                 this.started = true;\r
 238                         }\r
 239                 }\r
 240         },\r
 241         \r
 242         stop: function(){\r
 243                 $clear(this.timer);\r
 244                 this.stopped = true;\r
 245         },\r
 246 \r
 247         quit: function(){\r
 248                 this.stop();\r
 249         /* does not work */\r
 250                 var oimg = this.oldImage.getElement('img');\r
 251                 if (oimg) {\r
 252                         oimg.dispose();\r
 253                         delete oimg;\r
 254                 }\r
 255         },\r
 256         \r
 257         next: function(wait){\r
 258                 var doNext = true;\r
 259                 if(wait && this.stopped){\r
 260                         doNext = false;\r
 261                 }\r
 262                 if(this.animating){\r
 263                         doNext = false;\r
 264                 }\r
 265                 if(doNext){\r
 266                         this.cloneImage();\r
 267                         $clear(this.timer);\r
 268                         /* console.log(this.image) */\r
 269                         if(this.image < this.images.length-1){\r
 270                                 if(wait){\r
 271                                         this.wait();\r
 272                                 }else{\r
 273                                         this.load();    \r
 274                                 }\r
 275                         }else{\r
 276                                 if(this.options.loop){\r
 277                                         this.image = -1;\r
 278                                         if(wait){\r
 279                                                 this.wait();\r
 280                                         }else{\r
 281                                                 this.load();    \r
 282                                         }\r
 283                                 }else{\r
 284                                         this.stopped = true;\r
 285                                 }\r
 286                         }\r
 287                 }\r
 288         },\r
 289         \r
 290         previous: function(){\r
 291                 if(this.imageLoaded == 0){\r
 292                         this.image = this.images.length-2;      \r
 293                 }else{\r
 294                         this.image = this.imageLoaded-2;\r
 295                 }\r
 296                 this.next();\r
 297         },\r
 298         \r
 299         cloneImage: function(){\r
 300                 var img = this.oldImage.getElement('img');\r
 301                 if(img){\r
 302                         this.imageObj.clone().replaces(img);\r
 303                         //img.replaces(this.imageObj.clone());\r
 304                 }else{\r
 305                         var obj = this.imageObj.clone();\r
 306                         obj.injectInside(this.oldImage);\r
 307                 }\r
 308                 \r
 309                 this.oldImage.setStyles({\r
 310                         zIndex: 0,\r
 311                         top: 0,\r
 312                         left: 0,\r
 313                         opacity: 1\r
 314                 });\r
 315                 \r
 316                 this.newImage.setStyles({opacity:0});\r
 317         },\r
 318         \r
 319         \r
 320         effect: function(){\r
 321                 this.animating = true;\r
 322                 this.effectObj = new Fx.Morph(this.newImage, {\r
 323                         duration: this.options.duration,\r
 324                         transition: this.options.transition\r
 325                 });\r
 326                 \r
 327                 var myFxTypes = ['fade','wipe','slide'];\r
 328                 var myFxDir = ['top','right','bottom','left'];\r
 329                 \r
 330                 if(this.options.effect == 'fade'){\r
 331                         this.fade();\r
 332                         \r
 333                 }else if(this.options.effect == 'wipe'){\r
 334                         if(this.options.direction == 'random'){\r
 335                                 this.setup(myFxDir[Math.floor(Math.random()*(3+1))]);\r
 336                         }else{\r
 337                                 this.setup(this.options.direction);\r
 338                         }\r
 339                         this.wipe();\r
 340                         \r
 341                 }else if(this.options.effect == 'slide'){\r
 342                         if(this.options.direction == 'random'){\r
 343                                 this.setup(myFxDir[Math.floor(Math.random()*(3+1))]);\r
 344                         }else{\r
 345                                 this.setup(this.options.direction);\r
 346                         }\r
 347                         this.slide();\r
 348                         \r
 349                 }else if(this.options.effect == 'random'){\r
 350                         var type = myFxTypes[Math.floor(Math.random()*(2+1))];\r
 351                         if(type != 'fade'){\r
 352                                 var dir = myFxDir[Math.floor(Math.random()*(3+1))];\r
 353                                 if(this.options.direction == 'random'){\r
 354                                         this.setup(dir);\r
 355                                 }else{\r
 356                                         this.setup(this.options.direction);\r
 357                                 }\r
 358                         }else{\r
 359                                 this.setup();\r
 360                         }\r
 361                         this[type]();\r
 362                 }\r
 363         },\r
 364         \r
 365         setup: function(dir){\r
 366                 if(dir == 'top'){\r
 367                         this.top = -this.height;\r
 368                         this.left = 0;\r
 369                         this.topOut = this.height;\r
 370                         this.leftOut = 0;\r
 371                         \r
 372                 }else if(dir == 'right'){\r
 373                         this.top = 0;\r
 374                         this.left = this.width;\r
 375                         this.topOut = 0;\r
 376                         this.leftOut = -this.width;\r
 377                         \r
 378                 }else if(dir == 'bottom'){\r
 379                         this.top = this.height;\r
 380                         this.left = 0;\r
 381                         this.topOut = -this.height;\r
 382                         this.leftOut = 0;\r
 383                         \r
 384                 }else if(dir == 'left'){\r
 385                         this.top = 0;\r
 386                         this.left = -this.width;\r
 387                         this.topOut = 0;\r
 388                         this.leftOut = this.width;\r
 389                         \r
 390                 }else{\r
 391                         this.top = 0;\r
 392                         this.left = 0;\r
 393                         this.topOut = 0;\r
 394                         this.leftOut = 0;\r
 395                 }\r
 396         },\r
 397         \r
 398         fade: function(){\r
 399                 this.effectObj.start({\r
 400                         opacity: [0,1]\r
 401                 });\r
 402                 this.resetAnimation.delay(this.options.duration+90,this);\r
 403                 if(!this.stopped){\r
 404                 this.next.delay(this.options.duration+100,this,true);\r
 405                 }\r
 406         },\r
 407         \r
 408         wipe: function(){\r
 409                 this.newImage.morph({\r
 410                         duration: this.options.duration,\r
 411                         transition: this.options.transition,\r
 412                         top: [0,this.topOut],\r
 413                         left: [0, this.leftOut]\r
 414                 })\r
 415                 this.effectObj.start({\r
 416                         top: [this.top,0],\r
 417                         left: [this.left,0],\r
 418                         opacity: [1,1]\r
 419                 },this);\r
 420                 this.resetAnimation.delay(this.options.duration+90,this);\r
 421                 if(!this.stopped){\r
 422                 this.next.delay(this.options.duration+100,this,true);\r
 423                 }\r
 424         },\r
 425         \r
 426         slide: function(){\r
 427                 this.effectObj.start({\r
 428                         top: [this.top,0],\r
 429                         left: [this.left,0],\r
 430                         opacity: [1,1]\r
 431                 },this);\r
 432                 this.resetAnimation.delay(this.options.duration+90,this);\r
 433                 if(!this.stopped){\r
 434                 this.next.delay(this.options.duration+100,this,true);\r
 435                 }\r
 436         },\r
 437         \r
 438         resetAnimation: function(){\r
 439                 this.animating = false;\r
 440         },\r
 441 \r
 442         position: function(){\r
 443                 var myCoords = this.container.getCoordinates();\r
 444                 this.width = myCoords.width;\r
 445                 this.height = myCoords.height;\r
 446                 /*\r
 447                 this.width = this.container.getStyle('width').toInt();\r
 448                 this.height = this.container.getStyle('height').toInt();\r
 449                 */\r
 450                 /* alert('container dim: '+this.width+'x'+this.height); */\r
 451         },\r
 452 \r
 453         reshow: function(){\r
 454                 this.position();\r
 455                 this.image--;\r
 456                 this.load();\r
 457         },\r
 458         \r
 459 });\r
 460 slideShow.implement(new Options);\r
 461 slideShow.implement(new Events);\r
 462 \r
 463 \r
 464 /*************************************************************/\r
 465 \r