Current File : /home/caballoscriollos/www/js/basic-jquery-slider.js
/*
* Basic jQuery Slider plug-in v.1.1
*
* http://www.basic-slider.com
*
* Authored by John Cobb
* Visit my blog at http://www.johncobb.name
* Or say helo on twitter: @john0514
*
* Copyright 2011, John Cobb
* Free for all to use, abuse and improve under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*
* First published: August 2011
* Updated v1.1: September 2011
* Updated v1.2: Janurary 2012
*
*/ (function ($) {
$.fn.bjqs = function (options) {
var settings = {},
defaults = {
// Width + Height used to ensure consistency
width: 700,
height: 300,
// The type of animation (slide or fade)
animation: 'fade',
// The duration in ms of the transition between slides
animationDuration: 450,
// Automatically rotate through the slides
automatic: true,
// Delay in ms between auto rotation of the slides
rotationSpeed: 4000,
// Pause the slider when any elements receive a hover event
hoverPause: true,
// Show the manual slider controls
showControls: true,
// Center the controls vertically
centerControls: true,
// Text to display in next/prev buttons
nextText: 'Next',
prevText: 'Prev',
// Show positional markers
showMarkers: true,
// Center the positional indicators
centerMarkers: true,
// Allow navigation with arrow keys
keyboardNav: true,
// Use image title text as caption
useCaptions: true
},
$container = this,
$slider = $container.find('.bjqs'),
slides = $slider.children('li'),
slideCount = slides.length,
animating = false,
paused = false,
current = 0,
slidePosition = 1,
next = 0,
$active = slides.eq(current),
forward = 'forward',
back = 'backward';
// Overwrite the defaults with the provided options (if any)
settings = $.extend({}, defaults, options);
// Make everything consistent in size
// TODO: move away from px and make slider responsive
slides.css({
'height': settings.height,
'width': settings.width
});
$slider.css({
'height': settings.height,
'width': settings.width
});
$container.css({
'height': settings.height,
'width': settings.width
});
// Add unique class to slide list elements to differentiate from slide content list elements
slides.addClass('bjqs-slide');
// Phat Controller(s)
if (settings.showControls && slideCount > 1) {
// Create the elements for the controls
var $controlContainer = $('<ul class="bjqs-controls"></ul>'),
$next = $('<li><a href="#" class="bjqs-next" class="controls"><p>' + settings.nextText + '</p></a></li>'),
$previous = $('<li><a href="#" class="bjqs-prev" class="controls"><p>' + settings.prevText + '</p></a></li>');
// Bind click events to the controllers
$next.click(function (e) {
e.preventDefault();
if (!animating) {
bjqsGo(forward, false);
}
});
$previous.click(function (e) {
e.preventDefault();
if (!animating) {
bjqsGo(back, false);
}
});
// Put 'em all together and what do you get? Ding dong. Hotdog
$next.appendTo($controlContainer);
$previous.appendTo($controlContainer);
$controlContainer.appendTo($container);
// Vertically center the controllers
if (settings.centerControls) {
var $control = $next.children('a'),
offset = ($container.height() - $control.height()) / 2;
$next.children('a').css('top', offset).show();
$previous.children('a').css('top', offset).show();
}
}
// Let's put in some markers
if (settings.showMarkers && slideCount > 1) {
var $markerContainer = $('<ol class="bjqs-markers"></ol>'),
$marker, markers, offset;
//Create a marker for each banner and add append it to the wrapper
$.each(slides, function (key, value) {
if (settings.animType === 'slide') {
if (key !== 0 && key !== slideCount - 1) {
$marker = $('<li><a href="#">' + key + '</a></li>');
}
} else {
key++;
$marker = $('<li><a href="#">' + key + '</a></li>');
}
$marker.click(function (e) {
e.preventDefault();
if (!$(this).hasClass('active-marker') && !animating) {
bjqsGo(false, key);
}
});
$marker.appendTo($markerContainer);
});
markers = $markerContainer.children('li');
markers.eq(current).addClass('active-marker');
$markerContainer.appendTo($container);
if (settings.centerMarkers) {
offset = (settings.width - $markerContainer.width()) / 2;
$markerContainer.css('left', offset);
}
}
// Enable keyboard navigation
if (settings.keyboardNav && slideCount > 1) {
$(document).keyup(function (event) {
if (!paused) {
clearInterval(bjqsInterval);
paused = true;
}
if (!animating) {
if (event.keyCode === 39) {
event.preventDefault();
bjqsGo(forward, false);
} else if (event.keyCode === 37) {
event.preventDefault();
bjqsGo(back, false);
}
}
if (paused & settings.automatic) {
bjqsInterval = setInterval(function () {
bjqsGo(forward)
}, settings.rotationSpeed);
paused = false;
}
});
}
// Show captions
if (settings.useCaptions) {
$.each(slides, function (key, value) {
var $slide = $(value);
var $slideChild = $slide.children('img:first-child');
var title = $slideChild.attr('title');
if (title) {
var $caption = $('<p class="bjqs-caption">' + title + '</p>');
$caption.appendTo($slide);
}
});
}
// Run a bubble-bath and float in that m'fkr like a hovercraft. (enable hover pause)
if (settings.hoverPause && settings.automatic) {
$container.hover(function () {
if (!paused) {
clearInterval(bjqsInterval);
paused = true;
}
}, function () {
if (paused) {
bjqsInterval = setInterval(function () {
bjqsGo(forward)
}, settings.rotationSpeed);
paused = false;
}
});
}
// We have to make a few tweaks if we're sliding instead of fading
if (settings.animation === 'slide' && slideCount > 1) {
$first = slides.eq(0);
$last = slides.eq(slideCount - 1);
$first.clone().addClass('clone').removeClass('slide').appendTo($slider);
$last.clone().addClass('clone').removeClass('slide').prependTo($slider);
slides = $slider.children('li');
slideCount = slides.length;
$wrapper = $('<div class="bjqs-wrapper"></div>').css({
'width': settings.width,
'height': settings.height,
'overflow': 'hidden',
'position': 'relative'
});
$slider.css({
'width': settings.width * slideCount,
'left': -settings.width
});
slides.css({
'float': 'left',
'position': 'relative',
'display': 'list-item'
});
$wrapper.prependTo($container);
$slider.appendTo($wrapper);
}
// Check position to see if we're at the first or last slide and update 'next' accordingly
var checkPosition = function (direction) {
if (settings.animation === 'fade') {
if (direction === forward) {
!$active.next().length ? next = 0 : next++
} else if (direction === back) {
!$active.prev().length ? next = slideCount - 1 : next--
}
}
if (settings.animation === 'slide') {
if (direction === forward) {
next = slidePosition + 1;
}
if (direction === back) {
next = slidePosition - 1;
}
}
return next;
}
// Kick off the rotation if we're on auto pilot, but only if we have more than 1 slide (thanks Efrain!)
if (settings.automatic && slideCount > 1) {
var bjqsInterval = setInterval(function () {
bjqsGo(forward, false)
}, settings.rotationSpeed);
}
// Show the first slide
slides.eq(current).show();
$slider.show();
// What comes next? Hey, Bust a move!
var bjqsGo = function (direction, position) {
if (!animating) {
if (direction) {
next = checkPosition(direction);
} else if (position && settings.animation === 'fade') {
next = position - 1;
} else {
next = position;
}
animating = true;
if (settings.animation === 'fade') {
if (settings.showMarkers) {
markers.eq(current).removeClass('active-marker');
markers.eq(next).addClass('active-marker');
}
$next = slides.eq(next);
$active.fadeOut(settings.animationDuration);
$next.fadeIn(settings.animationDuration, function () {
$active.hide();
current = next;
$active = $next;
animating = false;
});
} else if (settings.animation === 'slide') {
if (settings.showMarkers) {
markers.eq(slidePosition - 1).removeClass('active-marker');
if (next === slideCount - 1) {
markers.eq(0).addClass('active-marker');
} else if (next === 0) {
markers.eq(slideCount - 3).addClass('active-marker');
} else {
markers.eq(next - 1).addClass('active-marker');
}
}
$slider.animate({
'left': -next * settings.width
}, settings.animationDuration, function () {
if (next === 0) {
slidePosition = slideCount - 2;
$slider.css({
'left': -slidePosition * settings.width
});
} else if (next === slideCount - 1) {
slidePosition = 1;
$slider.css({
'left': -settings.width
});
} else {
slidePosition = next;
}
animating = false;
});
}
}
}
return this; // KTHXBYE
}
})(jQuery);
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