487 lines
23 KiB
JavaScript
487 lines
23 KiB
JavaScript
|
/**
|
||
|
* jQuery.marquee - scrolling text like old marquee element
|
||
|
* @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,
|
||
|
loopCount = 3,
|
||
|
playState = 'animation-play-state',
|
||
|
css3AnimationIsSupported = false,
|
||
|
|
||
|
// Private methods
|
||
|
_prefixedEvent = function(element, type, callback) {
|
||
|
var pfx = ["webkit", "moz", "MS", "o", ""];
|
||
|
for (var p = 0; p < pfx.length; p++) {
|
||
|
if (!pfx[p]) type = type.toLowerCase();
|
||
|
element.addEventListener(pfx[p] + type, callback, false);
|
||
|
}
|
||
|
},
|
||
|
|
||
|
_objToString = function(obj) {
|
||
|
var tabjson = [];
|
||
|
for (var p in obj) {
|
||
|
if (obj.hasOwnProperty(p)) {
|
||
|
tabjson.push(p + ':' + obj[p]);
|
||
|
}
|
||
|
}
|
||
|
tabjson.push();
|
||
|
return '{' + tabjson.join(',') + '}';
|
||
|
},
|
||
|
|
||
|
_startAnimationWithDelay = function() {
|
||
|
$this.timer = setTimeout(animate, o.delayBeforeStart);
|
||
|
},
|
||
|
|
||
|
// Public methods
|
||
|
methods = {
|
||
|
pause: function() {
|
||
|
if (css3AnimationIsSupported && o.allowCss3Support) {
|
||
|
$marqueeWrapper.css(playState, 'paused');
|
||
|
} else {
|
||
|
// pause using pause plugin
|
||
|
if ($.fn.pause) {
|
||
|
$marqueeWrapper.pause();
|
||
|
}
|
||
|
}
|
||
|
// save the status
|
||
|
$this.data('runningStatus', 'paused');
|
||
|
// fire event
|
||
|
$this.trigger('paused');
|
||
|
},
|
||
|
|
||
|
resume: function() {
|
||
|
// resume using css3
|
||
|
if (css3AnimationIsSupported && o.allowCss3Support) {
|
||
|
$marqueeWrapper.css(playState, 'running');
|
||
|
} else {
|
||
|
// resume using pause plugin
|
||
|
if ($.fn.resume) {
|
||
|
$marqueeWrapper.resume();
|
||
|
}
|
||
|
}
|
||
|
// save the status
|
||
|
$this.data('runningStatus', 'resumed');
|
||
|
// fire event
|
||
|
$this.trigger('resumed');
|
||
|
},
|
||
|
|
||
|
toggle: function() {
|
||
|
methods[$this.data('runningStatus') == 'resumed' ? 'pause' : 'resume']();
|
||
|
},
|
||
|
|
||
|
destroy: function() {
|
||
|
// Clear timer
|
||
|
clearTimeout($this.timer);
|
||
|
// Unbind all events
|
||
|
$this.find("*").addBack().unbind();
|
||
|
// Just unwrap the elements that has been added using this plugin
|
||
|
$this.html($this.find('.js-marquee:first').html());
|
||
|
}
|
||
|
};
|
||
|
|
||
|
// Check for methods
|
||
|
if (typeof options === 'string') {
|
||
|
if ($.isFunction(methods[options])) {
|
||
|
// Following two IF statements to support public methods
|
||
|
if (!$marqueeWrapper) {
|
||
|
$marqueeWrapper = $this.find('.js-marquee-wrapper');
|
||
|
}
|
||
|
if ($this.data('css3AnimationIsSupported') === true) {
|
||
|
css3AnimationIsSupported = true;
|
||
|
}
|
||
|
methods[options]();
|
||
|
}
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* Check if element has data attributes. They have top priority
|
||
|
For details https://twitter.com/aamirafridi/status/403848044069679104 - Can't find a better solution :/
|
||
|
jQuery 1.3.2 doesn't support $.data().KEY hence writting the following */
|
||
|
var dataAttributes = {},
|
||
|
attr;
|
||
|
$.each(o, function(key, value) {
|
||
|
// Check if element has this data attribute
|
||
|
attr = $this.attr('data-' + key);
|
||
|
if (typeof attr !== 'undefined') {
|
||
|
// Now check if value is boolean or not
|
||
|
switch (attr) {
|
||
|
case 'true':
|
||
|
attr = true;
|
||
|
break;
|
||
|
case 'false':
|
||
|
attr = false;
|
||
|
break;
|
||
|
}
|
||
|
o[key] = attr;
|
||
|
}
|
||
|
});
|
||
|
|
||
|
// Reintroduce speed as an option. It calculates duration as a factor of the container width
|
||
|
// measured in pixels per second.
|
||
|
if (o.speed) {
|
||
|
o.duration = parseInt($this.width(), 10) / o.speed * 1000;
|
||
|
}
|
||
|
|
||
|
// 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 ? parseInt(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) {
|
||
|
$el.clone(true).appendTo($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 duration according to the text length
|
||
|
if (o.startVisible && !o.duplicated) {
|
||
|
// Compute the complete animation duration and save it for later reference
|
||
|
// formula is to: (Height of the text node + height of the main container / Height of the main container) * duration;
|
||
|
o._completeDuration = ((parseInt(elHeight, 10) + parseInt(containerHeight, 10)) / parseInt(containerHeight, 10)) * o.duration;
|
||
|
|
||
|
// formula is to: (Height of the text node / height of the main container) * duration
|
||
|
o.duration = (parseInt(elHeight, 10) / parseInt(containerHeight, 10)) * o.duration;
|
||
|
} else {
|
||
|
// formula is to: (Height of the text node + height of the main container / Height of the main container) * duration;
|
||
|
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 duration according to the text length
|
||
|
if (o.startVisible && !o.duplicated) {
|
||
|
// Compute the complete animation duration and save it for later reference
|
||
|
// formula is to: (Width of the text node + width of the main container / Width of the main container) * duration;
|
||
|
o._completeDuration = ((parseInt(elWidth, 10) + parseInt(containerWidth, 10)) / parseInt(containerWidth, 10)) * o.duration;
|
||
|
|
||
|
// (Width of the text node / width of the main container) * duration
|
||
|
o.duration = (parseInt(elWidth, 10) / parseInt(containerWidth, 10)) * o.duration;
|
||
|
} else {
|
||
|
// formula is to: (Width of the text node + width of the main container / Width of the main container) * duration;
|
||
|
o.duration = ((parseInt(elWidth, 10) + parseInt(containerWidth, 10)) / parseInt(containerWidth, 10)) * o.duration;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// if duplicated then reduce the duration
|
||
|
if (o.duplicated) {
|
||
|
o.duration = o.duration / 2;
|
||
|
}
|
||
|
|
||
|
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 = '',
|
||
|
keyframeString = '';
|
||
|
|
||
|
// Check css3 support
|
||
|
if (elm.style.animation !== undefined) {
|
||
|
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;
|
||
|
$this.data('css3AnimationIsSupported', true);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
var _rePositionVertically = function() {
|
||
|
$marqueeWrapper.css('transform', 'translateY(' + (o.direction == 'up' ? containerHeight + 'px' : '-' + elHeight + 'px') + ')');
|
||
|
},
|
||
|
_rePositionHorizontally = function() {
|
||
|
$marqueeWrapper.css('transform', 'translateX(' + (o.direction == 'left' ? containerWidth + 'px' : '-' + elWidth + 'px') + ')');
|
||
|
};
|
||
|
|
||
|
// if duplicated option is set to true than position the wrapper
|
||
|
if (o.duplicated) {
|
||
|
if (verticalDir) {
|
||
|
if (o.startVisible) {
|
||
|
$marqueeWrapper.css('transform', 'translateY(0)');
|
||
|
} else {
|
||
|
$marqueeWrapper.css('transform', 'translateY(' + (o.direction == 'up' ? containerHeight + 'px' : '-' + ((elHeight * 2) - o.gap) + 'px') + ')');
|
||
|
}
|
||
|
} else {
|
||
|
if (o.startVisible) {
|
||
|
$marqueeWrapper.css('transform', 'translateX(0)');
|
||
|
} else {
|
||
|
$marqueeWrapper.css('transform', 'translateX(' + (o.direction == 'left' ? containerWidth + 'px' : '-' + ((elWidth * 2) - o.gap) + 'px') + ')');
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// If the text starts out visible we can skip the two initial loops
|
||
|
if (!o.startVisible) {
|
||
|
loopCount = 1;
|
||
|
}
|
||
|
} else if (o.startVisible) {
|
||
|
// We only have two different loops if marquee is duplicated and starts visible
|
||
|
loopCount = 2;
|
||
|
} else {
|
||
|
if (verticalDir) {
|
||
|
_rePositionVertically();
|
||
|
} else {
|
||
|
_rePositionHorizontally();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Animate recursive method
|
||
|
var animate = function() {
|
||
|
if (o.duplicated) {
|
||
|
// When duplicated, the first loop will be scroll longer so double the duration
|
||
|
if (loopCount === 1) {
|
||
|
o._originalDuration = o.duration;
|
||
|
if (verticalDir) {
|
||
|
o.duration = o.direction == 'up' ? o.duration + (containerHeight / ((elHeight) / o.duration)) : o.duration * 2;
|
||
|
} else {
|
||
|
o.duration = o.direction == 'left' ? o.duration + (containerWidth / ((elWidth) / o.duration)) : o.duration * 2;
|
||
|
}
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's ' + o.delayBeforeStart / 1000 + 's ' + o.css3easing;
|
||
|
}
|
||
|
loopCount++;
|
||
|
}
|
||
|
// On 2nd loop things back to normal, normal duration for the rest of animations
|
||
|
else if (loopCount === 2) {
|
||
|
o.duration = o._originalDuration;
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationName = animationName + '0';
|
||
|
keyframeString = $.trim(keyframeString) + '0 ';
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's 0s infinite ' + o.css3easing;
|
||
|
}
|
||
|
loopCount++;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (verticalDir) {
|
||
|
if (o.duplicated) {
|
||
|
|
||
|
// Adjust the starting point of animation only when first loops finishes
|
||
|
if (loopCount > 2) {
|
||
|
$marqueeWrapper.css('transform', 'translateY(' + (o.direction == 'up' ? 0 : '-' + elHeight + 'px') + ')');
|
||
|
}
|
||
|
|
||
|
animationCss = {
|
||
|
'transform': 'translateY(' + (o.direction == 'up' ? '-' + elHeight + 'px' : 0) + ')'
|
||
|
};
|
||
|
} else if (o.startVisible) {
|
||
|
// This loop moves the marquee out of the container
|
||
|
if (loopCount === 2) {
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's ' + o.delayBeforeStart / 1000 + 's ' + o.css3easing;
|
||
|
}
|
||
|
animationCss = {
|
||
|
'transform': 'translateY(' + (o.direction == 'up' ? '-' + elHeight + 'px' : containerHeight + 'px') + ')'
|
||
|
};
|
||
|
loopCount++;
|
||
|
} else if (loopCount === 3) {
|
||
|
// Set the duration for the animation that will run forever
|
||
|
o.duration = o._completeDuration;
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationName = animationName + '0';
|
||
|
keyframeString = $.trim(keyframeString) + '0 ';
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's 0s infinite ' + o.css3easing;
|
||
|
}
|
||
|
_rePositionVertically();
|
||
|
}
|
||
|
} else {
|
||
|
_rePositionVertically();
|
||
|
animationCss = {
|
||
|
'transform': 'translateY(' + (o.direction == 'up' ? '-' + ($marqueeWrapper.height()) + 'px' : containerHeight + 'px') + ')'
|
||
|
};
|
||
|
}
|
||
|
} else {
|
||
|
if (o.duplicated) {
|
||
|
|
||
|
// Adjust the starting point of animation only when first loops finishes
|
||
|
if (loopCount > 2) {
|
||
|
$marqueeWrapper.css('transform', 'translateX(' + (o.direction == 'left' ? 0 : '-' + elWidth + 'px') + ')');
|
||
|
}
|
||
|
|
||
|
animationCss = {
|
||
|
'transform': 'translateX(' + (o.direction == 'left' ? '-' + elWidth + 'px' : 0) + ')'
|
||
|
};
|
||
|
|
||
|
} else if (o.startVisible) {
|
||
|
// This loop moves the marquee out of the container
|
||
|
if (loopCount === 2) {
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's ' + o.delayBeforeStart / 1000 + 's ' + o.css3easing;
|
||
|
}
|
||
|
animationCss = {
|
||
|
'transform': 'translateX(' + (o.direction == 'left' ? '-' + elWidth + 'px' : containerWidth + 'px') + ')'
|
||
|
};
|
||
|
loopCount++;
|
||
|
} else if (loopCount === 3) {
|
||
|
// Set the duration for the animation that will run forever
|
||
|
o.duration = o._completeDuration;
|
||
|
// Adjust the css3 animation as well
|
||
|
if (animationCss3Str) {
|
||
|
animationName = animationName + '0';
|
||
|
keyframeString = $.trim(keyframeString) + '0 ';
|
||
|
animationCss3Str = animationName + ' ' + o.duration / 1000 + 's 0s infinite ' + o.css3easing;
|
||
|
}
|
||
|
_rePositionHorizontally();
|
||
|
}
|
||
|
} else {
|
||
|
_rePositionHorizontally();
|
||
|
animationCss = {
|
||
|
'transform': 'translateX(' + (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) + '}',
|
||
|
$styles = $marqueeWrapper.find('style');
|
||
|
|
||
|
// Now add the keyframe animation to the marquee element
|
||
|
if ($styles.length !== 0) {
|
||
|
// Bug fixed for jQuery 1.3.x - Instead of using .last(), use following
|
||
|
$styles.filter(":last").html(keyframeCss);
|
||
|
} else {
|
||
|
$('head').append('<style>' + keyframeCss + '</style>');
|
||
|
}
|
||
|
|
||
|
// Animation iteration event
|
||
|
_prefixedEvent($marqueeWrapper[0], "AnimationIteration", function() {
|
||
|
$this.trigger('finished');
|
||
|
});
|
||
|
// Animation stopped
|
||
|
_prefixedEvent($marqueeWrapper[0], "AnimationEnd", function() {
|
||
|
animate();
|
||
|
$this.trigger('finished');
|
||
|
});
|
||
|
|
||
|
} else {
|
||
|
// Start animating
|
||
|
$marqueeWrapper.animate(animationCss, o.duration, o.easing, function() {
|
||
|
// fire event
|
||
|
$this.trigger('finished');
|
||
|
// animate again
|
||
|
if (o.pauseOnCycle) {
|
||
|
_startAnimationWithDelay();
|
||
|
} else {
|
||
|
animate();
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
// save the status
|
||
|
$this.data('runningStatus', 'resumed');
|
||
|
};
|
||
|
|
||
|
// bind pause and resume events
|
||
|
$this.bind('pause', methods.pause);
|
||
|
$this.bind('resume', methods.resume);
|
||
|
|
||
|
if (o.pauseOnHover) {
|
||
|
$this.bind('mouseenter', methods.pause);
|
||
|
$this.bind('mouseleave', methods.resume);
|
||
|
}
|
||
|
|
||
|
// If css3 animation is supported than call animate method at once
|
||
|
if (css3AnimationIsSupported && o.allowCss3Support) {
|
||
|
animate();
|
||
|
} else {
|
||
|
// Starts the recursive method
|
||
|
_startAnimationWithDelay();
|
||
|
}
|
||
|
|
||
|
});
|
||
|
}; // 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: 1000,
|
||
|
// 'left', 'right', 'up' or 'down'
|
||
|
direction: 'left',
|
||
|
// true or false - should the marquee be duplicated to show an effect of continues flow
|
||
|
duplicated: false,
|
||
|
// duration 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,
|
||
|
// the marquee is visible initially positioned next to the border towards it will be moving
|
||
|
startVisible: false
|
||
|
};
|
||
|
})(jQuery);
|