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jquery.devrama.slider.js
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jquery.devrama.slider.js
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/**
* DrSlider Version 0.9.5
* Developed by devrama.com
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/mit-license.php
*
*/
(function($){
var DrSlider = function(element, options){
this.width = undefined,
this.height = undefined,
this.parent_width = undefined,
this.num_slides = 0;
this.current_slide = undefined;
this.$sliders = undefined;
this.$very_current_slide = undefined; //This is very close current slide, it is the one before transitioning, and the moment when user click 'next', 'prev' or 'navigations'.
this.is_pause = false;
this.play_timer = true;
this.active_timer = false;
this.on_transition = false;
this._$progress_bar = undefined;
this.all_transitions = ['slide-left', 'slide-right', 'slide-top', 'slide-bottom', 'fade', 'split', 'split3d', 'door', 'wave-left', 'wave-right', 'wave-top', 'wave-bottom'];
this.requestFrame = window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function (callback) {
return window.setTimeout(callback, 1000 / 60);
};
this.options = {
width: undefined, //initial width, automaticall ycalculated once the first image is loaded
height: undefined, //initial height, automatically calculated once the first image is loaded
userCSS: false, //if this is true, 'Previous, Next Buttons and Navigation CSS' will not be applied. User should define CSS in their css file.
transitionSpeed: 1000,
duration: 4000,
showNavigation: true,
classNavigation: undefined,
navigationColor: '#9F1F22',
navigationHoverColor: '#D52B2F',
navigationHighlightColor: '#DFDFDF',
navigationNumberColor: '#000000',
positionNavigation: 'out-center-bottom',
// 'out-center-bottom', 'out-left-bottom', 'out-right-bottom', 'out-center-top', 'out-left-top', 'out-right-top',
// 'in-center-bottom', 'in-left-bottom', 'in-right-bottom', 'in-center-top', 'in-left-top', 'in-right-top',
// 'in-left-middle', 'in-right-middle'
navigationType: 'number', // number, circle, square
showControl: true,
classButtonNext: undefined,
classButtonPrevious: undefined,
controlColor: '#FFFFFF',
controlBackgroundColor: '#000000',
positionControl: 'left-right', // 'left-right', 'top-center', 'bottom-center', 'top-left', 'top-right', 'bottom-left', 'bottom-right'
transition: 'slide-left', //random, slide-left, slide-right, slide-top, slide-bottom, fade, split, split3d, door, wave-left, wave-right, wave-top, wave-bottom
showProgress: true,
progressColor: '#797979',
pauseOnHover: true,
onReady: undefined
};
var css = '\
<style id="devrama-css" type="text/css">\
.devrama-slider,\
.devrama-slider *,\
.devrama-slider *::before,\
.devrama-slider *::after{\
-webkit-box-sizing: border-box;\
-moz-box-sizing: border-box;\
box-sizing: border-box;\
}\
</style>\
';
if($('#devrama-css').length == 0){
if($('html>head').length > 0) $('html>head').append(css);
else $('body').append(css);
}
$.extend(this.options, options);
this.$ele = $(element);
this.$ele.wrapInner('<div class="inner devrama-slider"><div class="projector"></div></div>');
this.$ele_in = this.$ele.children('.inner:first');
this.$ele_projector = this.$ele_in.children('.projector:first');
};
DrSlider.prototype = {
_init: function(){
var that = this;
this._stopTimer(function(){
that._prepare(function(){
if(typeof that.options.onReady == 'function') that.options.onReady();
that._playSlide();
$(window).on('resize.DrSlider', function(){
that._resize();
});
});
});
if(this.options.pauseOnHover){
this.$ele_in.on('mouseenter', function(){
that.is_pause = true;
that._showButtons();
});
this.$ele_in.on('mouseleave', function(){
that.is_pause = false;
that._hideButtons();
});
}
},
_getEndEvent: function(prop){
var vendors = 'webkit Moz Ms o Khtml'.split(' ');
var len = vendors.length;
if (prop in document.body.style) return prop+'end';
prop = prop.charAt(0).toUpperCase() + prop.slice(1);
for(var i =0; i<vendors.length; i++){
if(vendors[i]+prop in document.body.style) return vendors[i]+prop+'End';
}
return false;
},
_animate: function(selector, from, to, duration, delay, callback, jQueryAnimation){
var $obj;
if(!delay) delay = 0;
if(selector instanceof jQuery) $obj = selector;
else $obj = $(selector);
if($obj.length == 0){
if(typeof callback == 'function') {
setTimeout(function(){
callback();
}, delay);
}
return;
}
if(typeof duration != 'number') duration = 0;
if(typeof delay != 'number') delay = 0;
var event_end;
if(jQueryAnimation) event_end = false;
else event_end = this._getEndEvent('transition');
if(event_end !== false){
var from_delay = 0;
if(from) {
$obj.css(from);
from_delay = 30;
}
setTimeout(function(){
var transition = {
'-webkit-transition': 'all '+duration+'ms ease '+delay+'ms',
'-moz-transition': 'all '+duration+'ms ease '+delay+'ms',
'-o-transition': 'all '+duration+'ms ease '+delay+'ms',
'transition': 'all '+duration+'ms ease '+delay+'ms'
}
var css = $.extend({}, transition, to);
$obj.css(css);
var fired = false; //to ensure it fires event only once
$obj.one(event_end, function(){
$obj.css({
'-webkit-transition': '',
'-moz-transition': '',
'-o-transition': '',
'transition': ''
});
if(typeof callback == 'function') callback();
});
}, from_delay);
}
else {
setTimeout(function(){
if(from) $obj.css(from);
$obj.animate(to, duration, function(){
callback();
});
}, delay);
}
},
_prepare: function(callback){
var that = this;
this.parent_width = this.$ele.parent().width();
if(this.$ele.css('position') == 'static') this.$ele.css('position', 'relative');
this.$ele.css({
'visibility': 'hidden',
'width': 'auto',
'height': 'auto'
});
this.$ele_in.css({
'position': 'relative',
'margin': '0 auto'
});
this.$ele_projector.css({
'position': 'relative',
'overflow': 'hidden'
});
/*
* set CSS for init
* Only the first child will be shown at start, hiding others.
*/
var $sliders = this.$ele_projector.children('[class!=slider-progress]');
$sliders.css({
'display': 'none',
'position': 'absolute',
'top': '0',
'left': '0'
});
this.$sliders = $sliders;
this.num_slides = this.$sliders.length;
//preload images sequentially so that images are not loaded slide by slide.
var arr_all_images = [];
this.$ele_projector.find('[data-lazy-src], [data-lazy-background]').each(function(){
var image = $(this).data('lazy-src') || $(this).data('lazy-background');
arr_all_images.push(image);
});
this._preloadImages(arr_all_images, function(){ });
/*
* There are 3 possibilities.
* 1[image]
* <img data-lazy-src data-transition/>
* 2[link]
* <a data-lazy-src data-transition><img/></a>
* 3[animation]
* <div data-transition data-background>
* <img data-lazy-src data-start-pos data-end-pos data-duration data-easing />
* <img data-lazy-src data-start-pos data-end-pos data-duration data-easing />
* </div>
*
* Now, we gotta decide what the case is.
*/
this.$sliders.each(function(){
var transparent_data = 'data:image/gif;base64,R0lGODlhAQABAPAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==';
if(!$(this).hasClass('slider-progress') && !$(this).hasClass('button-slider')){
var images = [];
var has_main_image = true;
if($(this).data('lazy-background')){
$(this).addClass('primary-img background');
images.push($(this).data('lazy-background'));
}
else if($(this).data('lazy-src')) {
$(this).addClass('primary-img image');
$(this).css('vertical-align', 'bottom'); //to fix extra space problem inside a link.
$(this).attr('src', transparent_data);
images.push($(this).data('lazy-src'));
}
//such as <a><img></a> <div><img></div>, push a image below, so we do not push it into array
else if($(this).children().length == 1 && $(this).children('img').length == 1){
$(this).children('img[data-lazy-src]:first').addClass('primary-img image');
}
else {
has_main_image = false;
}
$(this).find('[data-lazy-src]').each(function(){
$(this).css('vertical-align', 'bottom'); //to fix extra space problem inside a link.
$(this).attr('src', transparent_data);
images.push($(this).data('lazy-src'));
});
$(this).find('[data-lazy-background]').each(function(){
images.push($(this).data('lazy-background'));
});
$(this).data({'has-main-image': has_main_image,'images': images});
$(this).children('[data-pos]').css('display', 'none');
}
});
//if initial width and height are defined, this sets the box width and height before loading images.
if(this.options.width && this.options.height){
var obj = {
width: this.options.width,
height: this.options.height
};
this.width = obj.width;
this.height = obj.height;
this.$ele_in.css(obj);
this.$ele_projector.css(obj);
//show Controls
if(that.num_slides > 1 && that.options.showControl) that._attachControl();
//show Navigation
if(that.num_slides > 1 && that.options.showNavigation) that._attachNavigation();
if(that.options.classNavigation) that._attachUserNavigation();
if(that.options.classButtonPrevious || that.options.classButtonNext) that._attachUserControlEvent();
callback();
}
else {
/*
* load first image and set the box dimension as the image size
*/
var first_img = new Image();
first_img.onload = first_img.onerror = function(){
var obj = {
width: first_img.width,
height: first_img.height
};
that.width = obj.width;
that.height = obj.height;
that.$ele_in.css(obj);
that.$ele_projector.css(obj);
//show Controls
if(that.num_slides > 1 && that.options.showControl) that._attachControl();
//show Navigation
if(that.num_slides > 1 && that.options.showNavigation) that._attachNavigation();
if(that.options.classNavigation) that._attachUserNavigation();
if(that.options.classButtonPrevious || that.options.classButtonNext) that._attachUserControlEvent();
callback();
}
first_img.src = this.$sliders.first().data('images')[0];
}
},
_resetSize: function($element, new_width, new_height, callback){
var new_size = {
width: new_width,
height: new_height
};
var $target1, $target2;
if($element) {
$target1 = $element;
$target2 = $element.find('.primary-img:first');
$prev_target1 = this.$ele_projector.children('.active.primary-img:first');
$prev_target2 = this.$ele_projector.children('.active').find('.primary-img:first');
}
else {
$target1 = this.$ele_projector.children('.active');
$target2 = this.$ele_projector.children('.active').find('.primary-img:first');
}
$target1.css(new_size);
$target2.css(new_size);
if($element){
/*
* When the size of next slide is different from the current one,
* We animate the box size.
*/
if(this.width != new_width || this.height != new_height){
$prev_target1.animate(new_size);
$prev_target2.animate(new_size);
this.$ele_in.css(new_size); //.animate() makes this block 'overflow: hidden', so I use just .css().
this.$ele_projector.animate(new_size, function(){
if(typeof callback == 'function') callback();
});
}
else {
if(typeof callback == 'function') callback();
}
}
//This is the case when the window size is resized by the user.
else {
if(this.on_transition == true){
this.$very_current_slide.css({
'display': 'block',
'top': '0',
'left': '0',
'z-index': '5',
'width': new_width,
'height': new_height
});
}
this.$ele_in.css(new_size);
this.$ele_projector.css(new_size);
if(typeof callback == 'function') callback();
}
this.width = new_width;
this.height = new_height;
},
_resize: function($element, callback){
var that = this;
this.parent_width = this.$ele.parent().width();
var new_width, new_height, original;
if(this.options.width && this.options.height){
original = {
'width': this.options.width,
'height': this.options.height
};
}
else if(!$element) original = this.$ele_projector.children('.active').data('original');
else original = $element.data('original');
if(original.width > that.parent_width){
new_width = that.parent_width;
new_height = new_width*original.height/original.width;
}
else{
new_width = original.width;
new_height = original.height;
}
this._resetSize($element, new_width, new_height, callback);
},
_attachUserControlEvent: function(){
var that = this;
if(this.options.classButtonPrevious){
$('.'+this.options.classButtonPrevious).on('click', function(e){
e && e.preventDefault();
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
that._startTimer(function(){
that._prev();
});
});
});
}
if(this.options.classButtonNext){
$('.'+this.options.classButtonNext).on('click', function(e){
e && e.preventDefault();
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
that._startTimer(function(){
that._next();
});
});
});
}
},
_attachUserNavigation: function(){
var that = this;
var $userNavigation = $('.'+this.options.classNavigation).find('[data-index]');
if($userNavigation.length == 0){
$userNavigation = $('.'+this.options.classNavigation).children();
}
$userNavigation.on('click', function(e){
e && e.preventDefault();
if(that.play_timer == false || that.on_transition == true) return;
$userNavigation.removeClass('active');
$(this).addClass('active');
var navigation_num;
if($(this).data('index') && $(this).data('index') != ''){
var slide_num = that.$ele_projector.children('[data-index=\''+$(this).data('index')+'\']').index();
if(slide_num > 0) navigation_num = slide_num;
else navigation_num = $(this).data('index');
}
else {
navigation_num = $(this).index();
}
if(navigation_num == that.current_slide) return;
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
if(navigation_num > 0) that.current_slide = navigation_num - 1;
else that.current_slide = that.num_slides - 1;
that._startTimer(function(){
that._next();
});
});
});
},
_updateNavigation: function(){
var that = this;
if(this.options.classNavigation) {
$('.'+this.options.classNavigation).find('.active').removeClass('active');
var user_index = this.$sliders.eq(this.current_slide).data('index');
if(typeof user_index != 'undefined' && user_index != ''){
$('.'+this.options.classNavigation).find('[data-index=\''+user_index+'\']').addClass('active');
}
else {
var nav_index = $('.'+this.options.classNavigation).children().eq(this.current_slide).data('index');
if(!nav_index || nav_index == '')
$('.'+this.options.classNavigation).children().eq(this.current_slide).addClass('active');
}
}
this.$ele_projector.next('.navigation').find('.nav-link').removeClass('active');
this.$ele_projector.next('.navigation').find('.nav-link.index'+this.current_slide).addClass('active');
if(!this.options.userCSS){
this.$ele_projector.next('.navigation').find('.nav-link').css({
'background-color': this.options.navigationColor
});
this.$ele_projector.next('.navigation').find('.nav-link.index'+this.current_slide).css({
'background-color': this.options.navigationHighlightColor
});
}
},
_attachNavigation: function(){
if(this.num_slides < 2) return;
var that = this;
var navigation_html = '';
for(var i =0; i < this.num_slides; i++)
navigation_html += '<span class="nav-link index'+i+'" data-num="'+i+'">'+(i+1)+'</span>';
this.$ele_projector.after('<div class="navigation devrama-slider"><div class="inner">'+navigation_html+'</div></div>');
var pos_nav = this.options.positionNavigation;
var $navigation = this.$ele_projector.next('.navigation');
var $nav_link = $navigation.find('.nav-link');
$navigation.css({
'font-size': '12px',
'z-index': '3',
'user-select': 'none'
});
if(!this.options.userCSS){
$nav_link.css({
'display': 'inline-block',
'width' : this.options.navigationType != 'number' ? '13px': '',
'height' : this.options.navigationType != 'number' ? '13px': '',
'padding': '0.2em',
'font-size': '12px',
'vertical-align': 'bottom',
'cursor': 'pointer',
'color': this.options.navigationNumberColor,
'text-align': 'center',
'text-indent': this.options.navigationType != 'number' ? '-10000em' : '',
'width': this.options.navigationType == 'number' ? $nav_link.innerHeight()+'px' : '13px',
'border': '0px solid transparent',
'border-radius': this.options.navigationType == 'circle' ? '50%' : '',
'margin-top': (pos_nav == 'in-left-middle' || pos_nav == 'in-right-middle') ? '5px':'',
'margin-left': (pos_nav != 'in-left-middle' && pos_nav != 'in-right-middle') ? '5px':''
});
$navigation.find('.nav-link:first').css({
'margin-top': '0',
'margin-left': '0'
});
$navigation.find('.nav-link:last').css({
'margin-bottom': '0',
'margin-right': '0'
});
if(this.options.positionNavigation == 'in-left-middle'
|| this.options.positionNavigation == 'in-right-middle'){
$navigation.children('.inner').css({
'width': $nav_link.outerWidth(true)+'px'
});
}
else {
var inner_width = 0;
$nav_link.each(function(){
inner_width += $(this).outerWidth(true);
});
$navigation.children('.inner').css({
'width': inner_width+'px'
});
}
// 'out-center-bottom', 'out-left-bottom', 'out-right-bottom', 'out-center-top', 'out-left-top', 'out-right-top',
// 'in-center-bottom', 'in-left-bottom', 'in-right-bottom', 'in-center-top', 'in-left-top', 'in-right-top',
// 'in-left-middle', 'in-right-middle'
var nav_css_additional = {};
var nav_height = $navigation.outerHeight();
//vertical position
switch(this.options.positionNavigation){
case 'out-center-top':
case 'out-left-top':
case 'out-right-top':
$navigation.css('margin', '5px 0');
this.$ele.css('padding-top', (nav_height+10)+'px'); // 10 is 5+5 margin
nav_css_additional['top'] = (-1*(nav_height+10))+'px'; // 10 is 5+5 margin
break;
case 'out-center-bottom':
case 'out-left-bottom':
case 'out-right-bottom':
nav_css_additional['top'] = '100%';
$navigation.css('margin', '5px 0');
this.$ele.css('padding-bottom', (nav_height+10)+'px'); // 10 is 5+5 margin
break;
case 'in-center-top':
case 'in-left-top':
case 'in-right-top':
nav_css_additional['top'] = '20px';
break;
case 'in-center-bottom':
case 'in-left-bottom':
case 'in-right-bottom':
case 'out-right-bottom':
nav_css_additional['bottom'] = '20px';
break;
case 'in-left-middle':
case 'in-right-middle':
nav_css_additional['top'] = '50%';
nav_css_additional['margin-top'] = (-1*nav_height/2)+'px';
break;
}
//horizontal position
switch(this.options.positionNavigation){
case 'out-left-top':
case 'out-left-bottom':
case 'in-left-top':
case 'in-left-bottom':
case 'in-left-middle':
nav_css_additional['left'] = '20px';
break;
case 'out-center-top':
case 'out-center-bottom':
case 'in-center-top':
case 'in-center-bottom':
nav_css_additional['left'] = '50%';
if(inner_width) nav_css_additional['margin-left'] = (-1*inner_width/2)+'px';
break;
case 'out-right-top':
case 'out-right-bottom':
case 'in-right-top':
case 'in-right-bottom':
case 'in-right-middle':
nav_css_additional['right'] = '20px';
break;
}
var nav_css = {
'position': 'absolute',
'z-index': '3'
};
$.extend(nav_css, nav_css_additional);
$navigation.css(nav_css);
$nav_link.css({
'background-color': that.options.navigationColor
});
$navigation.find('.nav-link:first').css({
'background-color': that.options.navigationHighlightColor
});
$nav_link.hover(function(){
$(this).css({
'background-color': that.options.navigationHoverColor
});
},function(){
$(this).css({
'background-color': $(this).data('num') == that.current_slide ? that.options.navigationHighlightColor : that.options.navigationColor
});
});
}
$nav_link.on('click', function(e){
e && e.preventDefault();
var navigation = this;
var navigation_num = $(navigation).data('num');
if(navigation_num == that.current_slide) return;
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
if(navigation_num > 0) that.current_slide = navigation_num - 1;
else that.current_slide = that.num_slides - 1;
that._startTimer(function(){
that._next();
});
});
});
},
_attachControl: function(){
var that = this;
this.$ele_in.append('<div class="button-previous button-slider">‹</div>');
this.$ele_in.append('<div class="button-next button-slider">›</div>');
this.$ele_in.children('.button-slider').css({
'display': 'none',
'z-index': '10',
'user-select': 'none'
});
if(!this.options.userCSS){
this.$ele_in.children('.button-slider').css({
'position': 'absolute',
'color': this.options.controlColor,
'font-size': '50px',
'font-family': '"Helvetica Neue", Helvetica, Arial, sans-serif',
'line-height': '0.65em',
'text-align': 'center',
'background-color': this.options.controlBackgroundColor,
'opacity': '0.5',
'width': '40px',
'height': '40px',
'border-radius': '50%',
'cursor': 'pointer'
});
//positionControl: 'left-right', // 'left-right', 'top-center', 'bottom-center', 'top-left', 'top-right', 'bottom-left', 'bottom-right'
var css_previous, css_next;
switch(this.options.positionControl){
case 'left-right':
css_previous = {
'left': '10px',
'top': '50%',
'margin-top': '-20px'
};
css_next = {
'right': '10px',
'top': '50%',
'margin-top': '-20px'
};
break;
case 'top-center':
css_previous = {
'left': '50%',
'top': '10px',
'margin-left': '-50px'
};
css_next = {
'left': '50%',
'top': '10px',
'margin-left': '10px'
};
break;
case 'bottom-center':
css_previous = {
'left': '50%',
'bottom': '10px',
'margin-left': '-50px'
};
css_next = {
'left': '50%',
'bottom': '10px',
'margin-left': '10px'
};
break;
case 'top-left':
css_previous = {
'left': '10px',
'top': '10px'
};
css_next = {
'left': '70px',
'top': '10px'
};
break;
case 'top-right':
css_previous = {
'right': '70px',
'top': '10px'
};
css_next = {
'right': '10px',
'top': '10px'
};
break;
case 'bottom-left':
css_previous = {
'left': '10px',
'bottom': '10px'
};
css_next = {
'left': '70px',
'bottom': '10px'
};
break;
case 'bottom-right':
css_previous = {
'right': '70px',
'bottom': '10px'
};
css_next = {
'right': '10px',
'bottom': '10px'
};
break;
}
this.$ele_in.children('.button-previous').css(css_previous);
this.$ele_in.children('.button-next').css(css_next);
}
this.$ele_in.children('.button-previous').on('click', function(e){
e && e.preventDefault();
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
that._startTimer(function(){
that._prev(function(){
that.is_pause = true; //Because the mouse pointer is on the button
});
});
});
});
this.$ele_in.children('.button-next').on('click', function(e){
e && e.preventDefault();
if(that.play_timer == false || that.on_transition == true) return;
that._stopTimer(function(){
that._startTimer(function(){
that._next(function(){
that.is_pause = true; //Because the mouse pointer is on the button
});
});
});
});
},
_showProgress: function(percent){
var that = this;
if(!this.options.showProgress) return;
if(this.$ele_in.children('.slider-progress').length == 0){
this.$ele_in.append('<div class="slider-progress"><div class="bar"></div></div>');
this._$progress_bar = this.$ele_in.find('.slider-progress:first .bar');
this.$ele_in.children('.slider-progress').css({
'z-index': '4'
});
this._$progress_bar.css({
'height': '100%'
});
if(!this.options.userCSS){
this.$ele_in.children('.slider-progress').css({
'position': 'absolute',
'bottom': '0',
'left': '0',
'height': '1.5%',
'width': '100%',
'background-color': 'transparent',
'opacity': '0.7'
});
this._$progress_bar.css({
'width': '0%',
'background-color': this.options.progressColor
});
}
}
if(typeof percent != 'undefined'){
this._$progress_bar.css('width', percent+'%');
}
},
_showButtons: function(){
this.$ele_in.children('.button-slider').fadeIn();
},
_hideButtons: function(){
this.$ele_in.children('.button-slider').fadeOut();
},
_playSlide: function(){
var that = this;
if(this.num_slides > 1){
this._startTimer(function(){ that._next(); });
}
else {
this._next();
}
},
_stopTimer: function(callback){
var that = this;
this.play_timer = false;
var timer = setInterval(function(){
if(that.active_timer == false) {
clearInterval(timer);
if(typeof callback == 'function') callback();
}
}, 100);
},
_startTimer: function(callback){
var that = this;
this.play_timer = true;
this.active_timer = true;
var start_time = (new Date()).getTime();
var end_time = start_time + that.options.duration;
var elapsed_time = 0;
this._showProgress(0);