var Roller = new Class({
renderTo:undefined,
height:undefined,
duration:3,
textContainer:undefined,
imageContainer:undefined,
images:[],
preload:false,
animation:undefined,
currentIndex:undefined,
viewport:{ },
inAutoPlayMode:true,
scramble:false,
initialize:function (config) {
this.renderTo = document.getElementById(config.renderTo);
if (config.preload !== undefined)this.preload = config.preload;
if (config.duration !== undefined)this.duration = config.duration;
if (config.animation !== undefined)this.animation = config.animation;
if (config.scramble !== undefined)this.scramble = config.scramble;
this.createDOM();
this.storeViewport();
},
createDOM:function () {
this.el = new Element('div');
this.el.className = 'ludo-roller';
this.renderTo.appendChild(this.el);
this.el.style.height = this.getRenderHeight() + 'px';
this.el.style.width = this.getRenderWidth() + 'px';
var t = this.textContainer = new Element('div');
t.className = 'ludo-roller-text-container';
this.el.appendChild(t);
var i = this.imageContainer = new Element('div');
i.className = 'ludo-roller-image-container';
this.el.appendChild(i);
},
getRenderWidth:function(){
return this.renderTo.offsetWidth
- parseInt(this.el.getStyle('margin-left') || 0) - parseInt(this.el.getStyle('margin-right') || 0)
- parseInt(this.el.getStyle('padding-left') || 0) - parseInt(this.el.getStyle('padding-right') || 0)
- parseInt(this.el.getStyle('border-left-width') || 0) - parseInt(this.el.getStyle('border-right-width') || 0);
},
getRenderHeight:function(){
return this.renderTo.offsetHeight - parseInt(this.el.getStyle('margin-top') || 0) - parseInt(this.el.getStyle('margin-bottom') || 0);
},
storeViewport:function () {
var i = this.imageContainer;
var t = this.textContainer;
this.viewport = {
img:{ width:parseInt(i.getStyle('width')), height:parseInt(i.getStyle('height'))},
text:{ width:parseInt(t.getStyle('width')), height:parseInt(t.getStyle('height'))}
}
},
add:function (image) {
var img = new RollerImage({
image:image,
slideshow:this,
listeners:{
'createDOM':this.adoptElements.bind(this),
'click':this.openURL.bind(this),
'show':this.onShow.bind(this)
}
});
this.images.push(img);
if (this.images.length === 1) {
img.preload();
}
},
start:function () {
if(this.scramble){
this.images.sort(function(){ return Math.random() - Math.random()});
this.images[0].preload();
this.scramble = false;
}
this.showNext();
},
hideCurrent:function () {
var current = this.getCurrent();
if (current)current.hide();
},
showNext:function () {
this.hideCurrent();
var i = this.currentIndex;
var img = this.next();
if (i === undefined)img.justShow(); else img.show();
var next = this.images[this.getIndexOfNext()];
next.preload();
},
onShow:function (image) {
if (this.inAutoPlayMode && image == this.getCurrent()) {
this.showNext.delay(this.duration * 1000, this);
}
},
next:function () {
this.currentIndex = this.getIndexOfNext();
return this.images[this.currentIndex];
},
getIndexOfNext:function () {
var index = this.currentIndex === undefined ? 0 : this.currentIndex + 1;
if (index >= this.images.length)index = 0;
return index;
},
getCurrent:function () {
return this.currentIndex !== undefined ? this.images[this.currentIndex] : undefined;
},
adoptElements:function (image) {
this.imageContainer.appendChild(image.getImageEl());
this.textContainer.appendChild(image.gettxt());
},
openURL:function (image) {
window.open(image.getUrl());
},
getAnimation:function () {
return this.animation;
},
getViewport:function () {
return this.viewport;
}
});
RollerImage = new Class({
Extends:Events,
image:undefined,
slideshow:undefined,
ani:{},
initialize:function (config) {
this.image = config.image;
this.slideshow = config.slideshow;
if (config.listeners !== undefined)this.addEvents(config.listeners);
},
createDOM:function () {
var i = this.img = new Element('div');
i.className = 'ludo-roller-image';
i.style.backgroundImage = 'url(' + this.image.img + ')';
i.style.display = 'none';
i.addEvent('click', this.click.bind(this));
var t = this.text = new Element('div');
t.className = 'ludo-roller-text';
t.innerHTML = this.image.text;
t.style.display = 'none';
t.addEvent('click', this.click.bind(this));
this.fireEvent('createDOM', this);
},
click:function () {
this.fireEvent('click', this);
},
getUrl:function () {
return this.image.url;
},
getImageEl:function () {
return this.img;
},
gettxt:function () {
return this.text
},
preload:function () {
if (this.img === undefined)this.createDOM();
},
show:function () {
this.preload();
this.showObject('text');
this.showObject('img');
},
showObject:function (key) {
switch (this.getAnimationEffect(key)) {
case 'slide':
this.slideObject(key);
break;
case 'fade':
this.fadeIn(key);
break;
default:
this.justShow();
}
},
getAnimationEffect:function (objectType) {
var effect = objectType === 'img' ? 'imageEffect' : 'textEffect';
var animation = this.slideshow.getAnimation();
return animation[effect];
},
fadeIn:function (key) {
if (this.ani[key] === undefined)this.createAniObject(key);
var animation = this.slideshow.getAnimation();
this.ani[key].fadeIn(animation.duration);
},
fadeOut:function (key) {
if (this.ani[key] === undefined)this.createAniObject(key);
var animation = this.slideshow.getAnimation();
this.ani[key].fadeOut(animation.duration);
},
slideObject:function (key) {
var coords = this.getSlideFromAndTo(key);
if (this.ani[key] === undefined)this.createAniObject(key);
this.ani[key].slide(coords.from, coords.to, this.slideshow.getAnimation().duration, 'slideIn');
},
slideObjectOut:function (key) {
var coords = this.getSlideFromAndTo(key);
if (this.ani[key] === undefined)this.createAniObject(key);
this.ani[key].slide(coords.to, { x:coords.from.x * -1, y:coords.from.y * -1}, this.slideshow.getAnimation().duration, 'slideOut');
},
getSlideFromAndTo:function (key) {
var animation = this.slideshow.getAnimation();
if (this.ani[key] === undefined)this.createAniObject(key);
var effect = key === 'img' ? 'imageSlide' : 'textSlide';
var from = this.getSlideFromCoordinates(key, animation[effect]);
var to = { x:0, y:0};
return {
from:from, to:to
}
},
getSlideFromCoordinates:function (objectType, key) {
var viewport = this.slideshow.getViewport();
var width = viewport[objectType].width;
var height = viewport[objectType].height;
switch (key) {
case 'left':
return { x:width, y:0 };
case 'up':
return { x:0, y:height };
break;
case 'right':
return { x:width * -1, y:0 };
break;
default:
return { x:0, y:height * -1};
}
},
createAniObject:function (key) {
var listeners = key == 'img' ? {
'slideIn':this.onAnimationComplete.bind(this),
'fadeIn':this.onAnimationComplete.bind(this)
} : {};
this.ani[key] = new RollerAnimation({
el:this[key],
listeners:listeners
});
},
onAnimationComplete:function () {
if (!this.isHidden())this.fireEvent('show', this);
},
justShow:function () {
this.img.style.display = '';
this.text.style.display = '';
this.fireEvent('show', this);
},
isHidden:function () {
return this.img.style.display === 'none';
},
hide:function () {
this.hideObject('img');
this.hideObject('text');
},
hideObject:function (objectType) {
switch (this.getAnimationOutEffect(objectType)) {
case 'slide':
this.slideObjectOut(objectType);
break;
case 'fade':
this.fadeOut(objectType);
break;
default:
this[objectType].style.display = 'none';
}
},
getAnimationOutEffect:function (objectType) {
var effect = objectType === 'img' ? 'imageOutEffect' : 'textOutEffect';
var animation = this.slideshow.getAnimation();
return animation[effect] ? animation[effect] : this.getAnimationEffect(objectType);
}
});
RollerZIndex = 200;
RollerAnimation = new Class({
Extends:Events,
el:undefined,
fps:33,
countStops:0,
coord:{x:0, y:0, current:{ x:0, y:0} },
currentStop:0,
from:undefined,
to:undefined,
currentEffect:undefined,
initialize:function (config) {
this.el = config.el;
this.el.style.position = 'absolute';
this.addEvents(config.listeners);
},
fadeIn:function (duration) {
this.fadeEffect(0, 100, duration, 'fadeIn');
},
fadeOut:function (duration) {
this.fadeEffect(100, 0, duration, 'fadeOut');
},
fadeEffect:function (fromOpacity, toOpacity, duration, type) {
this.currentEffect = type;
this.increaseZIndex();
this.setInitialStops(duration);
this.el.style.opacity = fromOpacity / 100;
this.el.style.filter = 'opacity(' + fromOpacity + ')';
this.coord.value = (toOpacity - fromOpacity) / this.countStops;
this.coord.currentValue = fromOpacity;
this.el.style.display = '';
this.executeFade();
},
increaseZIndex:function () {
RollerZIndex++;
this.el.style.zIndex = RollerZIndex;
},
executeFade:function () {
this.coord.currentValue += this.coord.value;
this.el.style.opacity = this.coord.currentValue / 100;
this.el.style.filter = 'opacity(' + this.coord.currentValue + ')';
this.currentStop++;
if (this.currentStop < this.countStops) {
this.executeFade.delay(this.fps, this);
} else {
if (this.coord.currentValue > 95) {
this.el.style.opacity = 1;
this.fireEvent(this.currentEffect, this);
} else {
this.el.style.display = 'none';
this.el.style.opacity = 1;
this.el.style.filter = 'opacity(100)';
}
}
},
setInitialStops:function (duration) {
this.currentStop = 0;
this.countStops = this.getCountStops(duration);
},
slide:function (from, to, duration, type) {
this.currentEffect = type;
this.increaseZIndex();
this.from = from;
this.to = to;
duration = duration ? duration : 1;
this.setInitialPosition(from);
this.setInitialStops(duration);
this.coord.x = (to.x - from.x) / this.countStops;
this.coord.y = (to.y - from.y) / this.countStops;
this.coord.current = this.from;
this.executeSlide();
},
executeSlide:function () {
this.coord.current.x += this.coord.x;
this.coord.current.y += this.coord.y;
this.el.style.left = Math.round(this.coord.current.x) + 'px';
this.el.style.top = Math.round(this.coord.current.y) + 'px';
this.currentStop++;
if (this.currentStop < this.countStops) {
this.executeSlide.delay(this.fps, this);
} else {
this.el.style.left = this.to.x + 'px';
this.el.style.top = this.to.y + 'px';
this.fireEvent(this.currentEffect, this);
}
},
getCountStops:function (duration) {
return this.fps * duration;
},
setInitialPosition:function (pos) {
this.el.style.left = pos.x + 'px';
this.el.style.top = pos.y + 'px';
this.el.style.display = '';
}
});
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