Beautiful canvas script to add magic to DOM elements

This is a little canvas script to add magic to DOM elements!
Html
<h1>A little canvas script to <span>add magic</span> to DOM elements!</h1> <button class="sparkley">Everything's better with sparkles!</button> <button class="sparkley last">I eat rainbows and poop butterflies!!</button> <div class="img"> <img id="image" src="http://cdn.twitrcovers.com/wp-content/uploads/2013/10/Rain-l.jpg"> </div> <p>It won't work on images or DOM elements which cannot contain other elements, unless we wrap them.</p>
CSS
@import url(http://fonts.googleapis.com/css?family=Lato:400,900|Montez); $buttonBackground: #2c3e50; $buttonColor: rgba(255,255,255,1); .sparkley { background: lighten( $buttonBackground , 10% ); color: $buttonColor; border: none; padding: 16px 36px; font-weight: normal; border-radius: 3px; transition: all 0.25s ease; box-shadow: 0 38px 32px -23px black; margin: 0 1em 1em; &:hover { background: $buttonBackground; color: transparentize( $buttonColor,0.8 ); } } html { font-family: Lato; font-weight: 200; font-size: 1em; text-align: center; color: #ddd; min-height: 100%; // awesome background from: http://codepen.io/bosscause/pen/BkxbC <3 background: #092756; background: -moz-radial-gradient(0% 100%, ellipse cover, rgba(35, 24, 82, 0.22) 10%,rgba(138,114,76,0) 40%),-moz-linear-gradient(top, rgba(57,173,219,.25) 0%, rgba(42,60,87,.4) 100%), -moz-linear-gradient(-45deg, #670d10 0%, #092756 100%); background: -webkit-radial-gradient(0% 100%, ellipse cover, rgba(35, 24, 82, 0.22) 10%,rgba(138,114,76,0) 40%), -webkit-linear-gradient(top, rgba(57,173,219,.25) 0%,rgba(42,60,87,.4) 100%), -webkit-linear-gradient(-45deg, #670d10 0%,#092756 100%); background: -o-radial-gradient(0% 100%, ellipse cover, rgba(35, 24, 82, 0.22) 10%,rgba(138,114,76,0) 40%), -o-linear-gradient(top, rgba(57,173,219,.25) 0%,rgba(42,60,87,.4) 100%), -o-linear-gradient(-45deg, #670d10 0%,#092756 100%); background: -ms-radial-gradient(0% 100%, ellipse cover, rgba(35, 24, 82, 0.22) 10%,rgba(138,114,76,0) 40%), -ms-linear-gradient(top, rgba(57,173,219,.25) 0%,rgba(42,60,87,.4) 100%), -ms-linear-gradient(-45deg, #670d10 0%,#092756 100%); background: -webkit-radial-gradient(0% 100%, ellipse cover, rgba(35, 24, 82, 0.22) 10%,rgba(138,114,76,0) 40%), linear-gradient(to bottom, rgba(57,173,219,.25) 0%,rgba(42,60,87,.4) 100%), linear-gradient(135deg, #670d10 0%,#092756 100%); body { padding: 50px; } } h1,h2,h3 { span { font-family: Montez; font-size: 1.9em; font-weight: 300; margin: 0 0.3em; color: #ff0080; } } h1 { font-size: 1.9em; width: 900px; margin: 0 auto 1em; text-shadow: 0 2px 1px black; } .img { margin: 40px auto 0; width: 500px; display: block; img { width: 100%; border-radius: 5px; } } p { padding: 5px 10px; display: inline-block; margin: 10px auto; }
JS
$(function() { // default is varying levels of transparent white sparkles $(".sparkley:first").sparkleh(); // rainbow as a color generates random rainbow colros // count determines number of sparkles // overlap allows sparkles to migrate... watch out for other dom elements though. $(".sparkley:last").sparkleh({ color: "rainbow", count: 100, overlap: 10 }); // here we create fuscia sparkles $("h1").sparkleh({ count: 80, color: ["#ff0080","#ff0080","#0000FF"] }); $("p").sparkleh({ count: 20, color: "#00ff00", speed: 0.05 }); // an array can be passed, too for colours // for an image, the image needs to be fully loaded to set // the canvas to it's height/width. // speed allows us to control... the ... velocity $("#image").imagesLoaded( function() { $(".img").sparkleh({ count: 25, color: ["#00afec","#fb6f4a","#fdfec5"], speed: 0.4 }); }); }); $.fn.sparkleh = function( options ) { return this.each( function(k,v) { var $this = $(v).css("position","relative"); var settings = $.extend({ width: $this.outerWidth(), height: $this.outerHeight(), color: "#FFFFFF", count: 30, overlap: 0, speed: 1 }, options ); var sparkle = new Sparkle( $this, settings ); $this.on({ "mouseover focus" : function(e) { sparkle.over(); }, "mouseout blur" : function(e) { sparkle.out(); } }); }); } function Sparkle( $parent, options ) { this.options = options; this.init( $parent ); } Sparkle.prototype = { "init" : function( $parent ) { var _this = this; this.$canvas = $("<canvas>") .addClass("sparkle-canvas") .css({ position: "absolute", top: "-"+_this.options.overlap+"px", left: "-"+_this.options.overlap+"px", "pointer-events": "none" }) .appendTo($parent); this.canvas = this.$canvas[0]; this.context = this.canvas.getContext("2d"); this.sprite = new Image(); this.sprites = [0,6,13,20]; this.sprite.src = this.datauri; this.canvas.width = this.options.width + ( this.options.overlap * 2); this.canvas.height = this.options.height + ( this.options.overlap * 2); this.particles = this.createSparkles( this.canvas.width , this.canvas.height ); this.anim = null; this.fade = false; }, "createSparkles" : function( w , h ) { var holder = []; for( var i = 0; i < this.options.count; i++ ) { var color = this.options.color; if( this.options.color == "rainbow" ) { color = '#'+ ('000000' + Math.floor(Math.random()*16777215).toString(16)).slice(-6); } else if( $.type(this.options.color) === "array" ) { color = this.options.color[ Math.floor(Math.random()*this.options.color.length) ]; } holder[i] = { position: { x: Math.floor(Math.random()*w), y: Math.floor(Math.random()*h) }, style: this.sprites[ Math.floor(Math.random()*4) ], delta: { x: Math.floor(Math.random() * 1000) - 500, y: Math.floor(Math.random() * 1000) - 500 }, size: parseFloat((Math.random()*2).toFixed(2)), color: color }; } return holder; }, "draw" : function( time, fade ) { var ctx = this.context; ctx.clearRect( 0, 0, this.canvas.width, this.canvas.height ); for( var i = 0; i < this.options.count; i++ ) { var derpicle = this.particles[i]; var modulus = Math.floor(Math.random()*7); if( Math.floor(time) % modulus === 0 ) { derpicle.style = this.sprites[ Math.floor(Math.random()*4) ]; } ctx.save(); ctx.globalAlpha = derpicle.opacity; ctx.drawImage(this.sprite, derpicle.style, 0, 7, 7, derpicle.position.x, derpicle.position.y, 7, 7); if( this.options.color ) { ctx.globalCompositeOperation = "source-atop"; ctx.globalAlpha = 0.5; ctx.fillStyle = derpicle.color; ctx.fillRect(derpicle.position.x, derpicle.position.y, 7, 7); } ctx.restore(); } }, "update" : function() { var _this = this; this.anim = window.requestAnimationFrame( function(time) { for( var i = 0; i < _this.options.count; i++ ) { var u = _this.particles[i]; var randX = ( Math.random() > Math.random()*2 ); var randY = ( Math.random() > Math.random()*3 ); if( randX ) { u.position.x += ((u.delta.x * _this.options.speed) / 1500); } if( !randY ) { u.position.y -= ((u.delta.y * _this.options.speed) / 800); } if( u.position.x > _this.canvas.width ) { u.position.x = -7; } else if ( u.position.x < -7 ) { u.position.x = _this.canvas.width; } if( u.position.y > _this.canvas.height ) { u.position.y = -7; u.position.x = Math.floor(Math.random()*_this.canvas.width); } else if ( u.position.y < -7 ) { u.position.y = _this.canvas.height; u.position.x = Math.floor(Math.random()*_this.canvas.width); } if( _this.fade ) { u.opacity -= 0.02; } else { u.opacity -= 0.005; } if( u.opacity <= 0 ) { u.opacity = ( _this.fade ) ? 0 : 1; } } _this.draw( time ); if( _this.fade ) { _this.fadeCount -= 1; if( _this.fadeCount < 0 ) { window.cancelAnimationFrame( _this.anim ); } else { _this.update(); } } else { _this.update(); } }); }, "cancel" : function() { this.fadeCount = 100; }, "over" : function() { window.cancelAnimationFrame( this.anim ); for( var i = 0; i < this.options.count; i++ ) { this.particles[i].opacity = Math.random(); } this.fade = false; this.update(); }, "out" : function() { this.fade = true; this.cancel(); }, "datauri" : "data:image/png;base64,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" }; // $('img.photo',this).imagesLoaded(myFunction) // execute a callback when all images have loaded. // needed because .load() doesn't work on cached images // mit license. paul irish. 2010. // webkit fix from Oren Solomianik. thx! // callback function is passed the last image to load // as an argument, and the collection as `this` $.fn.imagesLoaded = function(callback){ var elems = this.filter('img'), len = elems.length, blank = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw=="; elems.bind('load.imgloaded',function(){ if (--len <= 0 && this.src !== blank){ elems.unbind('load.imgloaded'); callback.call(elems,this); } }).each(function(){ // cached images don't fire load sometimes, so we reset src. if (this.complete || this.complete === undefined){ var src = this.src; // webkit hack from http://groups.google.com/group/jquery-dev/browse_thread/thread/eee6ab7b2da50e1f // data uri bypasses webkit log warning (thx doug jones) this.src = blank; this.src = src; } }); return this; };
Read more:http://codepen.io/simeydotme/pen/jgcvi
Tag: hover effect
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Tags
accordion accordion menu animation navigation animation navigation menu buttons carousel checkbox inputs css3 css3 menu css3 navigation date picker dialog drag drop drop down menu drop down navigation menu elastic navigation form gallery glide navigation horizontal navigation menu hover effect image gallery image hover image lightbox image scroller image slideshow multi-level navigation menus rating select dependent select list slide image slider menu stylish form table tabs text effect text scroller tooltips tree menu vertical navigation menu