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February 11, 2011 10:50
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JS Coverflow
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/** | |
Copyright (c) 2008 Victor Stanciu; contact [at] victorstanciu [dot] ro; http://www.victorstanciu.ro/ | |
Permission is hereby granted, free of charge, to any person obtaining a copy | |
of this software and associated documentation files (the "Software"), to deal | |
in the Software without restriction, including without limitation the rights | |
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
copies of the Software, and to permit persons to whom the Software is | |
furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in | |
all copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
THE SOFTWARE. | |
*/ | |
/* Coverflow plugin for prototypeJS | |
* @author: sindre wimberger // wimberger@echonet.at | |
Original Script by Victor Stanciu; contact [at] victorstanciu [dot] ro; http://www.victorstanciu.ro/ | |
http://dev.victorstanciu.ro/experimente/prototype-showcase/ | |
* @version: 1.1 - 2011-02-11 | |
* @changelog: | |
v 1.1 - changed initialize from selector to Container ID, made controls optional, added a automatic change event | |
* @depencies: prototype/ scriptaculous | |
* @usage: | |
#Javascript | |
new Showcase.Horizontal('showcase', false, { | |
ratio: 0.5, | |
initialDelay: 0.5, | |
duration: 0.5, | |
size: 7 | |
}); | |
#HTML | |
<a href="#next" class="controls" rel="next">Next</a> | |
<a href="#previous" class="controls" rel="previous">Previous</a> | |
<ul id="showcase"> | |
<li><img src="images/1.jpg" alt="1" /></li> | |
<li><img src="images/2.jpg" alt="2" /></li> | |
<li><img src="images/3.jpg" alt="3" /></li> | |
... | |
<li><img src="images/n.jpg" alt="n" /></li> | |
</ul> | |
#CSS | |
#showcase {overflow:auto;} | |
#showcase.start {overflow:inherit;} | |
#showcase {height: 346px;margin:0;padding:0;position: relative;white-space:nowrap;width: 650px;} | |
#showcase li {display:inline-block;list-style-type: none; width: 245px;} | |
#showcase li img {display:block;height: 100%;width: 100%;-webkit-box-reflect: below 0 -webkit-gradient(linear, left top, left bottom, from(transparent), color-stop(.9, transparent), to(white)); | |
-moz-box-shadow: 0px 0px 4px #000;} | |
*/ | |
Showcase = Class.create(Abstract, { | |
initialize: function (container, controls, options) { | |
this.container = $(container); | |
if(!this.container) { return false;} | |
this.container.addClassName('start'); | |
var sections = this.container.select('li'); | |
this.allSections = this.sections = sections; | |
this.controls = controls; | |
this.options = Object.extend({ | |
ratio: 0.5, | |
initialDelay: 1, | |
duration: 0.5, | |
size: this.sections.size() | |
}, options || {}); | |
this.running = false; | |
this.queue = new Array; | |
this.computeMetrics(); | |
this.sections = this.allSections.slice(this.currentIndex - this.half, this.currentIndex + this.half + 1); | |
this.allSections.each((function (section, index) { | |
section.setStyle({position: 'absolute', zIndex: Math.abs(index - this.sections.size()), left: '50%', top: '50%', marginLeft: -Math.round(section.getWidth() / 2) + 'px', marginTop: -Math.round(section.getHeight() / 2) + 'px'}).initialIndex = index; | |
// section.observe('click', this.jump.bind(this)); | |
section.observe('mouseover', function (event) { | |
section.setOpacity(1); | |
}).observe('mouseout', function () { | |
section.setOpacity(section.opacity); | |
}).opacity = 1; | |
if (!this.sections.member(section)) { | |
this.queue.push(section.hide()); | |
} | |
}).bind(this)); | |
for (i = 0; i <= this.half; i++) { | |
this.sections.push(this.sections.shift()); | |
} | |
if(this.controls) { | |
this.controls.invoke('observe', 'click', this.click.bind(this)); | |
} | |
(this.animate.bind(this)).delay(this.options.initialDelay); | |
this.container.observe('mouseover', function () { | |
this.period.stop(); | |
}.bind(this)).observe('mouseout', function () { | |
this.periodical(); | |
}.bind(this)); | |
this.periodical(); | |
}, | |
periodical: function () { | |
this.period = new PeriodicalExecuter(function() { | |
this.previous(); | |
this.animate('previous'); | |
}.bind(this), 3); | |
}, | |
computeMetrics: function () { | |
this.half = this.currentIndex = (this.options.size - 1) / 2; | |
this.ratioStep = Math.round(((1 - this.options.ratio) / this.currentIndex) * 100) / 100; | |
this.positionStep = Math.round(50 / this.half * 100) / 100; | |
this.maxDimensions = this.sections.first().getDimensions(); | |
}, | |
click: function (event) { | |
event.stop(); | |
var element = event.findElement('a'); | |
if (!this.running) { | |
eval("this." + element.rel + "()"); | |
} | |
this.animate(element.rel); | |
}, | |
previous: function () { | |
if (this.options.size < this.allSections.size()) { | |
var sectionIn = this.queue.shift(); | |
var sectionOut = this.sections.pop(); | |
this.sections.unshift(sectionIn); | |
this.queue.push(sectionOut.fade({duration: this.options.duration})); | |
} else { | |
this.sections.unshift(this.sections.pop()); | |
} | |
}, | |
next: function () { | |
if (this.options.size < this.allSections.size()) { | |
var sectionIn = this.queue.shift(); | |
var sectionOut = this.sections.shift(); | |
this.sections.push(sectionIn); | |
this.queue.push(sectionOut.fade({duration: this.options.duration})); | |
} else { | |
this.sections.push(this.sections.shift()); | |
} | |
}, | |
jump: function (event) { | |
var indizes = this.sections.indexOf(event.findElement('li')); | |
/* if(indizes == 3) { | |
} else { | |
event.stop(); | |
}*/ | |
if (!this.running) { | |
var section = this.sections[indizes]; | |
var direction = ''; | |
if (section.index < this.half) { | |
(this.half - section.index).times((function () { | |
this.previous(); | |
}).bind(this)); | |
direction = 'previous'; | |
} else if (section.index == this.half) { | |
} else { | |
(section.index - this.half).times((function () { | |
this.next(); | |
}).bind(this)); | |
direction = 'next'; | |
} | |
this.animate(direction); | |
} | |
}, | |
runEffects: function () { | |
this.stackSections.bind(this).delay(this.options.duration / 2); | |
this.running = new Effect.Parallel( | |
this.effects.map(function (effect) { | |
return new Effect.Parallel([ | |
new Effect.Morph(effect.section, { | |
style: effect.style, | |
sync: true, | |
delay: 1, | |
transition: Effect.Transitions.linear | |
}), | |
new Effect.Appear(effect.section, { | |
to: Math.min(effect.section.ratio, 1), | |
sync: true | |
}) | |
], { | |
sync: true, | |
beforeStart: function () { | |
} | |
}); | |
}), { | |
duration: this.options.duration, | |
afterFinish: (function () { | |
this.running = false; | |
}).bind(this) | |
}); | |
}, | |
stackSections: function () { | |
this.sections.each(function (section) { | |
section.setStyle({zIndex: section.stackIndex}); | |
}); | |
}, | |
indexSections: function () { | |
this.sections.each((function (section, index) { | |
section.index = index; | |
section.modifier = Math.abs(Math.abs((section.index - (this.sections.size() - 1) / 2)) - this.half); | |
section.ratio = Math.round(((section.modifier * this.ratioStep) + this.options.ratio) * 100) / 100; | |
section.width = Math.min(Math.round(this.maxDimensions.width * section.ratio), this.maxDimensions.width); | |
section.height = Math.min(Math.round(this.maxDimensions.height * section.ratio), this.maxDimensions.height); | |
section.positionIndex = (section.index - (this.sections.size() - 1) / 2); | |
section.stackIndex = Math.abs(Math.abs((section.index - (this.sections.size() - 1) / 2)) - this.half) + 1; | |
section.left = section.top = Math.round((this.half + section.positionIndex) * this.positionStep); | |
section.opacity = Math.min(section.ratio, 1); | |
}).bind(this)); | |
} | |
}); | |
Showcase.Horizontal = Class.create(Showcase, { | |
animate: function (direction) { | |
this.indexSections(); | |
this.effects = new Array(); | |
this.sections.each((function (section) { | |
var style = { | |
left: section.left + '%', | |
top: '50%', | |
marginTop: -Math.abs(section.height / 2) + 'px', | |
width: section.width + 'px', | |
height: section.height + 'px' | |
}; | |
if (section.left == 0) { | |
style.marginLeft = '0px'; | |
} else if (section.left == 50) { | |
style.marginLeft = -Math.round(section.width / 2) + 'px'; | |
} else if (section.left == 100) { | |
style.marginLeft = -section.width + 'px'; | |
} else { | |
style.marginLeft = -Math.round(section.width / 2) + 'px'; | |
} | |
this.effects.push({section: section, style: style}); | |
}).bind(this)); | |
this.currentIndex = this.sections[this.half].initialIndex; | |
this.runEffects(); | |
} | |
}); | |
Showcase.Vertical = Class.create(Showcase, { | |
animate: function (direction) { | |
this.indexSections(); | |
this.effects = new Array(); | |
this.sections.each((function (section) { | |
var style = { | |
top: section.top + '%', | |
left: '50%', | |
marginLeft: -Math.abs(section.width / 2) + 'px', | |
width: section.width + 'px', | |
height: section.height + 'px' | |
}; | |
if (section.top == 0) { | |
style.marginTop = '0px'; | |
} else if (section.top == 50) { | |
style.marginTop = -Math.round(section.height / 2) + 'px'; | |
} else if (section.top == 100) { | |
style.marginTop = -section.height + 'px'; | |
} else { | |
style.marginTop = -Math.round(section.height / 2) + 'px'; | |
} | |
this.effects.push({section: section, style: style}); | |
}).bind(this)); | |
this.currentIndex = this.sections[this.half].initialIndex; | |
this.runEffects(); | |
} | |
}); | |
Showcase.Diagonal = Class.create(Showcase, { | |
animate: function (direction) { | |
this.indexSections(); | |
this.effects = new Array(); | |
this.sections.each((function (section) { | |
var style = { | |
left: section.left + '%', | |
top: section.top + '%', | |
width: section.width + 'px', | |
height: section.height + 'px' | |
}; | |
if (section.left == 0) { | |
style.marginLeft = '0px'; | |
} else if (section.left == 50) { | |
style.marginLeft = -Math.round(section.width / 2) + 'px'; | |
} else if (section.left == 100) { | |
style.marginLeft = -section.width + 'px'; | |
} else { | |
style.marginLeft = -Math.round(section.width / 2) + 'px'; | |
} | |
if (section.top == 0) { | |
style.marginTop = '0px'; | |
} else if (section.top == 50) { | |
style.marginTop = -Math.round(section.height / 2) + 'px'; | |
} else if (section.top == 100) { | |
style.marginTop = -section.height + 'px'; | |
} else { | |
style.marginTop = -Math.round(section.height / 2) + 'px'; | |
} | |
this.effects.push({section: section, style: style}); | |
}).bind(this)); | |
this.currentIndex = this.sections[this.half].initialIndex; | |
this.runEffects(); | |
} | |
}); | |
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