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responsiveslides.js
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responsiveslides.js
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/*! ResponsiveSlides.js v1.23
* http://responsive-slides.viljamis.com
*
* Copyright (c) 2011-2012 @viljamis
* Available under the MIT license
*/
/* ResponsiveSlides.js is a tiny jQuery plugin that creates a responsive
* slideshow using images inside <ul>. It works with wide range of browsers
* including all IE versions from IE6 and up. It also adds css max-width
* support for IE6 and other browsers that don't natively support it. Only
* dependency is jQuery (1.4 and up) and that all the images are same size.
*
* Features:
* - Fully responsive
* - Under 1kb minified and gzipped
* - Simple markup using unordered lists
* - Settings for transition and timeout durations
* - Multiple slideshows supported
* - Automatic and manual fade
* - Works in all major desktop and mobile browsers
* - Captions and other html-elements supported inside slides
* - Separate pagination and next/prev controls
* - Possibility to choose where the controls append to
* - Images can be wrapped inside links
* - Optional 'before' and 'after' callbacks
*
*/
/*jslint browser: true, sloppy: true, vars: true, plusplus: true, maxerr: 50, indent: 2 */
(function ($, window, i) {
$.fn.responsiveSlides = function (options) {
// Default settings
var settings = $.extend({
"auto": true, // Boolean: Animate automatically, true or false
"speed": 1000, // Integer: Speed of the transition, in milliseconds
"timeout": 4000, // Integer: Time between slide transitions, in milliseconds
"pager": false, // Boolean: Show pager, true or false
"nav": false, // Boolean: Show navigation, true or false
"prevText": "Previous", // String: Text for the "previous" button
"nextText": "Next", // String: Text for the "next" button
"maxwidth": "", // Integer: Max-width of the slideshow, in pixels
"controls": "", // Selector: Where controls should be appended to, default is after the <ul>
"namespace": "rslides" // String: change the default namespace used
}, options);
return this.each(function () {
// Index for namespacing
i++;
var $this = $(this),
// Local variables
selectTab,
startCycle,
restartCycle,
rotate,
$tabs,
// Helpers
index = 0,
$slide = $this.children(),
length = $slide.size(),
fadetime = parseFloat(settings.speed),
// Namespacing
namespace = settings.namespace,
namespaceIdx = namespace + i,
// Classes
navClass = namespace + "_nav " + namespaceIdx + "_nav",
activeClass = namespace + "_here",
visibleClass = namespaceIdx + "_on",
slideClassPrefix = namespaceIdx + "_s",
// Pager
$pager = $("<ul class='" + namespace + "_tabs " + namespaceIdx + "_tabs' />"),
// Styles for visible and hidden slides
visible = {"float": "left", "position": "relative"},
hidden = {"float": "none", "position": "absolute"},
// Fading animation
slideTo = function (idx) {
$this.trigger(namespace + "-before");
$slide
.stop()
.fadeOut(fadetime, function () {
$(this)
.removeClass(visibleClass)
.css(hidden);
})
.eq(idx)
.fadeIn(fadetime, function () {
$(this)
.addClass(visibleClass)
.css(visible)
.trigger(namespace + "-after");
index = idx;
});
};
// Only run if there's more than one slide
if ($slide.size() > 1) {
// Add ID's to each slide
$slide.each(function (i) {
this.id = slideClassPrefix + i;
});
// Add max-width and classes
$this.addClass(namespace + " " + namespaceIdx);
if (options && options.maxwidth) {
$this.css("max-width", settings.maxwidth);
}
// Hide all slides, then show first one
$slide
.hide()
.eq(0)
.addClass(visibleClass)
.css(visible)
.show();
// Pager
if (settings.pager === true) {
var tabMarkup = [];
$slide.each(function (i) {
var n = i + 1;
tabMarkup +=
"<li>" +
"<a href='#' class='" + slideClassPrefix + n + "'>" + n + "</a>" +
"</li>";
});
$pager.append(tabMarkup);
$tabs = $pager.find("a");
// Inject pager
if (options.controls) {
$(settings.controls).append($pager);
} else {
$this.after($pager);
}
// Select pager item
selectTab = function (idx) {
$tabs
.closest("li")
.removeClass(activeClass)
.eq(idx)
.addClass(activeClass);
};
}
// Auto cycle
if (settings.auto === true) {
startCycle = function () {
rotate = setInterval(function () {
var idx = index + 1 < length ? index + 1 : 0;
// Remove active state and set new if pager = "true"
if (settings.pager === true) {
selectTab(idx);
}
slideTo(idx);
}, parseFloat(settings.timeout));
};
// Init cycle
startCycle();
}
// Restarting cycle
restartCycle = function () {
if (settings.auto === true) {
// Stop
clearInterval(rotate);
// Restart
startCycle();
}
};
// Pager click event handler
if (settings.pager === true) {
$tabs.bind("click", function (e) {
e.preventDefault();
restartCycle();
// Get index of clicked tab
var idx = $tabs.index(this);
// Break if element is already active or currently animated
if (index === idx || $("." + visibleClass + ":animated").length) {
return;
}
// Remove active state from old tab and set new one
selectTab(idx);
// Do the animation
slideTo(idx);
})
.eq(0)
.closest("li")
.addClass(activeClass);
}
}
// Navigation
if (settings.nav === true) {
var navMarkup =
"<a href='#' class='" + navClass + " prev'>" + settings.prevText + "</a>" +
"<a href='#' class='" + navClass + " next'>" + settings.nextText + "</a>";
// Inject navigation
if (options.controls) {
$(settings.controls).append(navMarkup);
} else {
$this.after(navMarkup);
}
var $trigger = $("." + namespaceIdx + "_nav"),
$prev = $("." + namespaceIdx + "_nav.prev");
// Click event handler
$trigger.bind("click", function (e) {
e.preventDefault();
// Prevent clicking if currently animated
if ($("." + visibleClass + ":animated").length) {
return;
}
// Determine where to slide
var idx = $slide.index($("." + visibleClass)),
prevIdx = idx - 1,
nextIdx = idx + 1 < length ? index + 1 : 0;
// Go to slide
slideTo($(this) === $prev ? prevIdx : nextIdx);
if (settings.pager === true) {
selectTab($(this) === $prev ? prevIdx : nextIdx);
}
restartCycle();
});
}
// Max-width fallback
if (typeof document.body.style.maxWidth === "undefined" && options && options.maxwidth) {
var widthSupport = function () {
$this.css("width", "100%");
if ($this.width() > parseFloat(settings.maxwidth)) {
$this.css("width", parseFloat(settings.maxwidth));
}
};
// Init fallback
widthSupport();
$(window).bind("resize", function () {
widthSupport();
});
}
});
};
})(jQuery, this, 0);