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/**
* jQuery.marquee - scrolling text horizontally
* Date: 20/02/2013
* @author Aamir Afridi - aamirafridi(at)gmail(dot)com | http://aamirafridi.com/jquery/jquery-marquee-plugin
*/

;(function ($) {
$.fn.marquee = function (options) {
return this.each(function () {
// Extend the options if any provided
var o = $.extend({}, $.fn.marquee.defaults, options),
$this = $(this),
$marqueeWrapper,
containerWidth,
animationCss,
verticalDir,
elWidth,
playState = 'animation-play-state',
css3AnimationIsSupported = false;

//For details https://twitter.com/aamirafridi/status/403848044069679104 - Can't find a better solution :/
if (typeof $this.data().delaybeforestart !== 'undefined') {
$this.data().delayBeforeStart = $this.data().delaybeforestart;
delete $this.data().delaybeforestart;
}
if (typeof $this.data().pauseonhover !== 'undefined') {
$this.data().pauseOnHover = $this.data().pauseonhover;
delete $this.data().pauseonhover;
}
if (typeof $this.data().pauseoncycle !== 'undefined') {
$this.data().pauseOnCycle = $this.data().pauseoncycle;
delete $this.data().pauseoncycle;
}
if (typeof $this.data().allowcss3support !== 'undefined') {
$this.data().allowCss3Support = $this.data().allowcss3support;
delete $this.data().allowcss3support;
}

//check if element has data attributes. They have top priority
o = $.extend({}, o, $this.data());

//since speed option is changed to duration, to support speed for those who are already using it
o.duration = o.speed || o.duration;

//Shortcut to see if direction is upward or downward
verticalDir = o.direction == 'up' || o.direction == 'down';

//no gap if not duplicated
o.gap = o.duplicated ? o.gap : 0;

//wrap inner content into a div
$this.wrapInner('<div class="js-marquee"></div>');

//Make copy of the element
var $el = $this.find('.js-marquee').css({
'margin-right': o.gap,
'float': 'left'
});

if (o.duplicated) {
$el.clone().appendTo($this);
}

//wrap both inner elements into one div
$this.wrapInner('<div style="width:100000px" class="js-marquee-wrapper"></div>');

//Save the reference of the wrapper
$marqueeWrapper = $this.find('.js-marquee-wrapper');

//If direction is up or down, get the height of main element
if (verticalDir) {
var containerHeight = $this.height();
$marqueeWrapper.removeAttr('style');
$this.height(containerHeight);

//Change the CSS for js-marquee element
$this.find('.js-marquee').css({
'float': 'none',
'margin-bottom': o.gap,
'margin-right': 0
});

//Remove bottom margin from 2nd element if duplicated
if (o.duplicated) $this.find('.js-marquee:last').css({
'margin-bottom': 0
});

var elHeight = $this.find('.js-marquee:first').height() + o.gap;

/* adjust the animation speed according to the text length
formula is to: (Height of the text node / Height of the main container) * speed; */
o.duration = ((parseInt(elHeight, 10) + parseInt(containerHeight, 10)) / parseInt(containerHeight, 10)) * o.duration;

} else {
//Save the width of the each element so we can use it in animation
elWidth = $this.find('.js-marquee:first').width() + o.gap;

//container width
containerWidth = $this.width();

/* adjust the animation speed according to the text length
formula is to: (Width of the text node / Width of the main container) * speed; */
o.duration = ((parseInt(elWidth, 10) + parseInt(containerWidth, 10)) / parseInt(containerWidth, 10)) * o.duration;
}

//if duplicated than reduce the speed
if (o.duplicated) {
o.duration = o.duration / 2;
}

function objToString (obj) {
var tabjson=[];
for (var p in obj) {
if (obj.hasOwnProperty(p)) {
tabjson.push(p + ':' + obj[p]);
}
}
tabjson.push()
return '{'+tabjson.join(',')+'}';
}

function pause() {
//pause using css3
if(css3AnimationIsSupported && o.allowCss3Support) {
return $marqueeWrapper.css(playState, 'paused');
}

//pause using pause plugin
if ($.fn.pause) {
$marqueeWrapper.pause();
//fire event
$this.trigger('paused');
}
}

function resume() {
//resume using css3
if(css3AnimationIsSupported && o.allowCss3Support) {
return $marqueeWrapper.css(playState, 'running');
}

//resume using pause plugin
if ($.fn.resume) {
$marqueeWrapper.resume();
//fire event
$this.trigger('resumed');
}
}

if(o.allowCss3Support) {
var
elm = document.body || document.createElement('div'),
animationName = 'marqueeAnimation-' + Math.floor(Math.random()*10000000),
domPrefixes = 'Webkit Moz O ms Khtml'.split(' '),
animationString = 'animation',
animationCss3Str = '',
$styles = $('style'),
keyframeString = '';

//Check css3 support
if( elm.style.animation ) {
keyframeString = '@keyframes ' + animationName + ' ';
css3AnimationIsSupported = true;
}

if( css3AnimationIsSupported === false ) {
for( var i = 0; i < domPrefixes.length; i++ ) {
if( elm.style[ domPrefixes[i] + 'AnimationName' ] !== undefined ) {
var prefix = '-' + domPrefixes[ i ].toLowerCase() + '-';
animationString = prefix + animationString;
playState = prefix + playState;
keyframeString = '@'+prefix+'keyframes ' + animationName + ' ';
css3AnimationIsSupported = true;
break;
}
}
}

if(css3AnimationIsSupported) {
animationCss3Str = animationName + ' ' + o.duration/1000 + 's ' + o.delayBeforeStart/1000 + 's infinite ' + o.css3easing;
}
}
//Animate recursive method
var animate = function () {
if (verticalDir) {
if (o.duplicated) {
$marqueeWrapper.css('margin-top', o.direction == 'up' ? 0 : '-' + elHeight + 'px');
animationCss = {
'margin-top': o.direction == 'up' ? '-' + elHeight + 'px' : 0
}
} else {
$marqueeWrapper.css('margin-top', o.direction == 'up' ? containerHeight + 'px' : '-' + elHeight + 'px');
animationCss = {
'margin-top': o.direction == 'up' ? '-' + ($marqueeWrapper.height()) + 'px' : containerHeight + 'px'
};
}
} else {
if (o.duplicated) {
$marqueeWrapper.css('margin-left', o.direction == 'left' ? 0 : '-' + elWidth + 'px');
animationCss = {
'margin-left': o.direction == 'left' ? '-' + elWidth + 'px' : 0
};
} else {
$marqueeWrapper.css('margin-left', o.direction == 'left' ? containerWidth + 'px' : '-' + elWidth + 'px');
animationCss = {
'margin-left': o.direction == 'left' ? '-' + elWidth + 'px' : containerWidth + 'px'
};
}
}

//fire event
$this.trigger('beforeStarting');

//If css3 support is available than do it with css3, otherwise use jQuery as fallback
if(css3AnimationIsSupported) {
//Add css3 animation to the element
$marqueeWrapper.css(animationString, animationCss3Str);
var keyframeCss = keyframeString + ' { 100% '+ objToString(animationCss) +'}';

//Now add the keyframe animation to the head
if($styles.length!=0) {
$styles.last().append(keyframeCss)
}
else {
$('head').append('<style>' + keyframeCss + '</style>');
}
}
else {
//Start animating
$marqueeWrapper.animate(animationCss, o.duration, o.easing, function () {
//fire event
$this.trigger('finished');
//animate again
if (o.pauseOnCycle) {
setTimeout(animate, o.delayBeforeStart);
} else {
animate();
}
});
}
};

//bind pause and resume events
$this.bind('pause', pause);
$this.bind('resume', resume);

if (o.pauseOnHover) {
$this.hover(pause, resume);
}

//If css3 animation is supported than call animate method at once
if(css3AnimationIsSupported && o.allowCss3Support) {
animate();
}
else {
//Starts the recursive method
setTimeout(animate, o.delayBeforeStart);
}

});
}; //End of Plugin

// Public: plugin defaults options
$.fn.marquee.defaults = {
//If you wish to always animate using jQuery
allowCss3Support: true,
//works when allowCss3Support is set to true - for full list see http://www.w3.org/TR/2013/WD-css3-transitions-20131119/#transition-timing-function
css3easing: 'linear',
//requires jQuery easing plugin. Default is 'linear'
easing: 'linear',
//pause time before the next animation turn in milliseconds
delayBeforeStart: 0,
//'left', 'right', 'up' or 'down'
direction: 'left',
//true or false - should the marquee be duplicated to show an effect of continues flow
duplicated: false,
//speed in milliseconds of the marquee in milliseconds
duration: 5000,
//gap in pixels between the tickers
gap: 20,
//on cycle pause the marquee
pauseOnCycle: false,
//on hover pause the marquee - using jQuery plugin https://github.com/tobia/Pause
pauseOnHover: false
};
})(jQuery);

MediaWiki:JQuery.Marquee2.js - Versionsgeschichte

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