NIVO슬라이더 문의요
관련링크
본문
http://sir.kr/g5_skin/7522?sfl=wr_subject%7C%7Cwr_content&stx=nivo#vcmt_anchor
이거 사용하고 있는데요~
첫 이미지가 나오기 전에 로딩이미지가 나와요.. 그게 시간을 좀 잡아먹는거 같아서 생략하고 싶은데요
어느부분인지 도무지 모르겟어요..ㅠㅠ
로딩을 없애고 싶습니다. 도와주세요..
/*
* jQuery Nivo Slider v3.2
* http://nivo.dev7studios.com
*
* Copyright 2012, Dev7studios
* Free to use and abuse under the MIT license.
* http://www.opensource.org/licenses/mit-license.php
*/
(function($) {
var NivoSlider = function(element, options){
// Defaults are below
var settings = $.extend({}, $.fn.nivoSlider.defaults, options);
// Useful variables. Play carefully.
var vars = {
currentSlide: 0,
currentImage: '',
totalSlides: 0,
running: false,
paused: false,
stop: false,
controlNavEl: false
};
// Get this slider
var slider = $(element);
slider.data('nivo:vars', vars).addClass('nivoSlider');
// Find our slider children
var kids = slider.children();
kids.each(function() {
var child = $(this);
var link = '';
if(!child.is('img')){
if(child.is('a')){
child.addClass('nivo-imageLink');
link = child;
}
child = child.find('img:first');
}
// Get img width & height
var childWidth = (childWidth === 0) ? child.attr('width') : child.width(),
childHeight = (childHeight === 0) ? child.attr('height') : child.height();
if(link !== ''){
link.css('display','none');
}
child.css('display','none');
vars.totalSlides++;
});
// If randomStart
if(settings.randomStart){
settings.startSlide = Math.floor(Math.random() * vars.totalSlides);
}
// Set startSlide
if(settings.startSlide > 0){
if(settings.startSlide >= vars.totalSlides) { settings.startSlide = vars.totalSlides - 1; }
vars.currentSlide = settings.startSlide;
}
// Get initial image
if($(kids[vars.currentSlide]).is('img')){
vars.currentImage = $(kids[vars.currentSlide]);
} else {
vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
}
// Show initial link
if($(kids[vars.currentSlide]).is('a')){
$(kids[vars.currentSlide]).css('display','block');
}
// Set first background
var sliderImg = $('').addClass('nivo-main-image');
sliderImg.attr('src', vars.currentImage.attr('src')).show();
slider.append(sliderImg);
// Detect Window Resize
$(window).resize(function() {
slider.children('img').width(slider.width());
sliderImg.attr('src', vars.currentImage.attr('src'));
sliderImg.stop().height('auto');
$('.nivo-slice').remove();
$('.nivo-box').remove();
});
//Create caption
// slider.append($('
'));
// Process caption function
var processCaption = function(settings){
var nivoCaption = $('.nivo-caption', slider);
if(vars.currentImage.attr('title') != '' && vars.currentImage.attr('title') != undefined){
var title = vars.currentImage.attr('title');
if(title.substr(0,1) == '#') title = $(title).html();
if(nivoCaption.css('display') == 'block'){
setTimeout(function(){
nivoCaption.html(title);
}, settings.animSpeed);
} else {
nivoCaption.html(title);
nivoCaption.stop().fadeIn(settings.animSpeed);
}
} else {
nivoCaption.stop().fadeOut(settings.animSpeed);
}
}
//Process initial caption
processCaption(settings);
// In the words of Super Mario "let's a go!"
var timer = 0;
if(!settings.manualAdvance && kids.length > 1){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
// Add Direction nav
if(settings.directionNav){
slider.append(''+ settings.prevText +''+ settings.nextText +'
');
$(slider).on('click', 'a.nivo-prevNav', function(){
if(vars.running) { return false; }
clearInterval(timer);
timer = '';
vars.currentSlide -= 2;
nivoRun(slider, kids, settings, 'prev');
});
$(slider).on('click', 'a.nivo-nextNav', function(){
if(vars.running) { return false; }
clearInterval(timer);
timer = '';
nivoRun(slider, kids, settings, 'next');
});
}
// Add Control nav
if(settings.controlNav){
vars.controlNavEl = $('
');
slider.after(vars.controlNavEl);
for(var i = 0; i < kids.length; i++){
if(settings.controlNavThumbs){
vars.controlNavEl.addClass('nivo-thumbs-enabled');
var child = kids.eq(i);
if(!child.is('img')){
child = child.find('img:first');
}
if(child.attr('data-thumb')) vars.controlNavEl.append('');
} else {
vars.controlNavEl.append(''+ (i + 1) +'');
}
}
//Set initial active link
$('a:eq('+ vars.currentSlide +')', vars.controlNavEl).addClass('active');
$('a', vars.controlNavEl).bind('click', function(){
if(vars.running) return false;
if($(this).hasClass('active')) return false;
clearInterval(timer);
timer = '';
sliderImg.attr('src', vars.currentImage.attr('src'));
vars.currentSlide = $(this).attr('rel') - 1;
nivoRun(slider, kids, settings, 'control');
});
}
//For pauseOnHover setting
if(settings.pauseOnHover){
slider.hover(function(){
vars.paused = true;
clearInterval(timer);
timer = '';
}, function(){
vars.paused = false;
// Restart the timer
if(timer === '' && !settings.manualAdvance){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
});
}
// Event when Animation finishes
slider.bind('nivo:animFinished', function(){
sliderImg.attr('src', vars.currentImage.attr('src'));
vars.running = false;
// Hide child links
$(kids).each(function(){
if($(this).is('a')){
$(this).css('display','none');
}
});
// Show current link
if($(kids[vars.currentSlide]).is('a')){
$(kids[vars.currentSlide]).css('display','block');
}
// Restart the timer
if(timer === '' && !vars.paused && !settings.manualAdvance){
timer = setInterval(function(){ nivoRun(slider, kids, settings, false); }, settings.pauseTime);
}
// Trigger the afterChange callback
settings.afterChange.call(this);
});
// Add slices for slice animations
var createSlices = function(slider, settings, vars) {
if($(vars.currentImage).parent().is('a')) $(vars.currentImage).parent().css('display','block');
$('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').width(slider.width()).css('visibility', 'hidden').show();
var sliceHeight = ($('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').parent().is('a')) ? $('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').parent().height() : $('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').height();
for(var i = 0; i < settings.slices; i++){
var sliceWidth = Math.round(slider.width()/settings.slices);
if(i === settings.slices-1){
slider.append(
$('
').css({
left:(sliceWidth*i)+'px',
width:(slider.width()-(sliceWidth*i))+'px',
height:sliceHeight+'px',
opacity:'0',
overflow:'hidden'
})
);
} else {
slider.append(
$('
').css({
left:(sliceWidth*i)+'px',
width:sliceWidth+'px',
height:sliceHeight+'px',
opacity:'0',
overflow:'hidden'
})
);
}
}
$('.nivo-slice', slider).height(sliceHeight);
sliderImg.stop().animate({
height: $(vars.currentImage).height()
}, settings.animSpeed);
};
// Add boxes for box animations
var createBoxes = function(slider, settings, vars){
if($(vars.currentImage).parent().is('a')) $(vars.currentImage).parent().css('display','block');
$('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').width(slider.width()).css('visibility', 'hidden').show();
var boxWidth = Math.round(slider.width()/settings.boxCols),
boxHeight = Math.round($('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').height() / settings.boxRows);
for(var rows = 0; rows < settings.boxRows; rows++){
for(var cols = 0; cols < settings.boxCols; cols++){
if(cols === settings.boxCols-1){
slider.append(
$('
').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:(slider.width()-(boxWidth*cols))+'px'
})
);
$('.nivo-box[name="'+ cols +'"]', slider).height($('.nivo-box[name="'+ cols +'"] img', slider).height()+'px');
} else {
slider.append(
$('
').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:boxWidth+'px'
})
);
$('.nivo-box[name="'+ cols +'"]', slider).height($('.nivo-box[name="'+ cols +'"] img', slider).height()+'px');
}
}
}
sliderImg.stop().animate({
height: $(vars.currentImage).height()
}, settings.animSpeed);
};
// Private run method
var nivoRun = function(slider, kids, settings, nudge){
// Get our vars
var vars = slider.data('nivo:vars');
// Trigger the lastSlide callback
if(vars && (vars.currentSlide === vars.totalSlides - 1)){
settings.lastSlide.call(this);
}
// Stop
if((!vars || vars.stop) && !nudge) { return false; }
// Trigger the beforeChange callback
settings.beforeChange.call(this);
// Set current background before change
if(!nudge){
sliderImg.attr('src', vars.currentImage.attr('src'));
} else {
if(nudge === 'prev'){
sliderImg.attr('src', vars.currentImage.attr('src'));
}
if(nudge === 'next'){
sliderImg.attr('src', vars.currentImage.attr('src'));
}
}
vars.currentSlide++;
// Trigger the slideshowEnd callback
if(vars.currentSlide === vars.totalSlides){
vars.currentSlide = 0;
settings.slideshowEnd.call(this);
}
if(vars.currentSlide < 0) { vars.currentSlide = (vars.totalSlides - 1); }
// Set vars.currentImage
if($(kids[vars.currentSlide]).is('img')){
vars.currentImage = $(kids[vars.currentSlide]);
} else {
vars.currentImage = $(kids[vars.currentSlide]).find('img:first');
}
// Set active links
if(settings.controlNav){
$('a', vars.controlNavEl).removeClass('active');
$('a:eq('+ vars.currentSlide +')', vars.controlNavEl).addClass('active');
}
// Process caption
processCaption(settings);
// Remove any slices from last transition
$('.nivo-slice', slider).remove();
// Remove any boxes from last transition
$('.nivo-box', slider).remove();
var currentEffect = settings.effect,
anims = '';
// Generate random effect
if(settings.effect === 'random'){
anims = new Array('sliceDownRight','sliceDownLeft','sliceUpRight','sliceUpLeft','sliceUpDown','sliceUpDownLeft','fold','fade',
'boxRandom','boxRain','boxRainReverse','boxRainGrow','boxRainGrowReverse');
currentEffect = anims[Math.floor(Math.random()*(anims.length + 1))];
if(currentEffect === undefined) { currentEffect = 'fade'; }
}
// Run random effect from specified set (eg: effect:'fold,fade')
if(settings.effect.indexOf(',') !== -1){
anims = settings.effect.split(',');
currentEffect = anims[Math.floor(Math.random()*(anims.length))];
if(currentEffect === undefined) { currentEffect = 'fade'; }
}
// Custom transition as defined by "data-transition" attribute
if(vars.currentImage.attr('data-transition')){
currentEffect = vars.currentImage.attr('data-transition');
}
// Run effects
vars.running = true;
var timeBuff = 0,
i = 0,
slices = '',
firstSlice = '',
totalBoxes = '',
boxes = '';
if(currentEffect === 'sliceDown' || currentEffect === 'sliceDownRight' || currentEffect === 'sliceDownLeft'){
createSlices(slider, settings, vars);
timeBuff = 0;
i = 0;
slices = $('.nivo-slice', slider);
if(currentEffect === 'sliceDownLeft') { slices = $('.nivo-slice', slider)._reverse(); }
slices.each(function(){
var slice = $(this);
slice.css({ 'top': '0px' });
if(i === settings.slices-1){
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
} else if(currentEffect === 'sliceUp' || currentEffect === 'sliceUpRight' || currentEffect === 'sliceUpLeft'){
createSlices(slider, settings, vars);
timeBuff = 0;
i = 0;
slices = $('.nivo-slice', slider);
if(currentEffect === 'sliceUpLeft') { slices = $('.nivo-slice', slider)._reverse(); }
slices.each(function(){
var slice = $(this);
slice.css({ 'bottom': '0px' });
if(i === settings.slices-1){
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
} else if(currentEffect === 'sliceUpDown' || currentEffect === 'sliceUpDownRight' || currentEffect === 'sliceUpDownLeft'){
createSlices(slider, settings, vars);
timeBuff = 0;
i = 0;
var v = 0;
slices = $('.nivo-slice', slider);
if(currentEffect === 'sliceUpDownLeft') { slices = $('.nivo-slice', slider)._reverse(); }
slices.each(function(){
var slice = $(this);
if(i === 0){
slice.css('top','0px');
i++;
} else {
slice.css('bottom','0px');
i = 0;
}
if(v === settings.slices-1){
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
v++;
});
} else if(currentEffect === 'fold'){
createSlices(slider, settings, vars);
timeBuff = 0;
i = 0;
$('.nivo-slice', slider).each(function(){
var slice = $(this);
var origWidth = slice.width();
slice.css({ top:'0px', width:'0px' });
if(i === settings.slices-1){
setTimeout(function(){
slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
slice.animate({ width:origWidth, opacity:'1.0' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 50;
i++;
});
} else if(currentEffect === 'fade'){
createSlices(slider, settings, vars);
firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'width': slider.width() + 'px'
});
firstSlice.animate({ opacity:'1.0' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });
} else if(currentEffect === 'slideInRight'){
createSlices(slider, settings, vars);
firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'width': '0px',
'opacity': '1'
});
firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){ slider.trigger('nivo:animFinished'); });
} else if(currentEffect === 'slideInLeft'){
createSlices(slider, settings, vars);
firstSlice = $('.nivo-slice:first', slider);
firstSlice.css({
'width': '0px',
'opacity': '1',
'left': '',
'right': '0px'
});
firstSlice.animate({ width: slider.width() + 'px' }, (settings.animSpeed*2), '', function(){
// Reset positioning
firstSlice.css({
'left': '0px',
'right': ''
});
slider.trigger('nivo:animFinished');
});
} else if(currentEffect === 'boxRandom'){
createBoxes(slider, settings, vars);
totalBoxes = settings.boxCols * settings.boxRows;
i = 0;
timeBuff = 0;
boxes = shuffle($('.nivo-box', slider));
boxes.each(function(){
var box = $(this);
if(i === totalBoxes-1){
setTimeout(function(){
box.animate({ opacity:'1' }, settings.animSpeed, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + timeBuff));
} else {
setTimeout(function(){
box.animate({ opacity:'1' }, settings.animSpeed);
}, (100 + timeBuff));
}
timeBuff += 20;
i++;
});
} else if(currentEffect === 'boxRain' || currentEffect === 'boxRainReverse' || currentEffect === 'boxRainGrow' || currentEffect === 'boxRainGrowReverse'){
createBoxes(slider, settings, vars);
totalBoxes = settings.boxCols * settings.boxRows;
i = 0;
timeBuff = 0;
// Split boxes into 2D array
var rowIndex = 0;
var colIndex = 0;
var box2Darr = [];
box2Darr[rowIndex] = [];
boxes = $('.nivo-box', slider);
if(currentEffect === 'boxRainReverse' || currentEffect === 'boxRainGrowReverse'){
boxes = $('.nivo-box', slider)._reverse();
}
boxes.each(function(){
box2Darr[rowIndex][colIndex] = $(this);
colIndex++;
if(colIndex === settings.boxCols){
rowIndex++;
colIndex = 0;
box2Darr[rowIndex] = [];
}
});
// Run animation
for(var cols = 0; cols < (settings.boxCols * 2); cols++){
var prevCol = cols;
for(var rows = 0; rows < settings.boxRows; rows++){
if(prevCol >= 0 && prevCol < settings.boxCols){
/* Due to some weird JS bug with loop vars
being used in setTimeout, this is wrapped
with an anonymous function call */
(function(row, col, time, i, totalBoxes) {
var box = $(box2Darr[row][col]);
var w = box.width();
var h = box.height();
if(currentEffect === 'boxRainGrow' || currentEffect === 'boxRainGrowReverse'){
box.width(0).height(0);
}
if(i === totalBoxes-1){
setTimeout(function(){
box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3, '', function(){ slider.trigger('nivo:animFinished'); });
}, (100 + time));
} else {
setTimeout(function(){
box.animate({ opacity:'1', width:w, height:h }, settings.animSpeed/1.3);
}, (100 + time));
}
})(rows, prevCol, timeBuff, i, totalBoxes);
i++;
}
prevCol--;
}
timeBuff += 100;
}
}
};
// Shuffle an array
var shuffle = function(arr){
for(var j, x, i = arr.length; i; j = parseInt(Math.random() * i, 10), x = arr[--i], arr[i] = arr[j], arr[j] = x);
return arr;
};
// For debugging
var trace = function(msg){
if(this.console && typeof console.log !== 'undefined') { console.log(msg); }
};
// Start / Stop
this.stop = function(){
if(!$(element).data('nivo:vars').stop){
$(element).data('nivo:vars').stop = true;
trace('Stop Slider');
}
};
this.start = function(){
if($(element).data('nivo:vars').stop){
$(element).data('nivo:vars').stop = false;
trace('Start Slider');
}
};
// Trigger the afterLoad callback
settings.afterLoad.call(this);
return this;
};
$.fn.nivoSlider = function(options) {
return this.each(function(key, value){
var element = $(this);
// Return early if this element already has a plugin instance
if (element.data('nivoslider')) { return element.data('nivoslider'); }
// Pass options to plugin constructor
var nivoslider = new NivoSlider(this, options);
// Store plugin object in this element's data
element.data('nivoslider', nivoslider);
});
};
//Default settings
$.fn.nivoSlider.defaults = {
effect: 'random',
slices: 15,
boxCols: 8,
boxRows: 4,
animSpeed: 500,
pauseTime: 3000,
startSlide: 0,
directionNav: true,
controlNav: true,
controlNavThumbs: false,
pauseOnHover: true,
manualAdvance: false,
prevText: 'Prev',
nextText: 'Next',
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
};
$.fn._reverse = [].reverse;
})(jQuery);
답변 1
안녕하세요?
로딩이미지는 로딩속도와는 무관합니다.
해당 스크립트로 5개이미지를 불러온다라고 하면 관련이미지를 다 불러온 이후에 화면에 실행되며,
이미지를 불러오는 동안에 보이는 흰화면을
단지 로딩이미지가 그자리를 대체하고 있을 뿐입니다.
겉으로 보일때는 로딩이미지가 나온 이후에 이미지가 나오는거 같아서 느린것처럼 보이지만
사실은 이미지 자체가 느려서 로딩하는 동안에 로딩이미지로 지루함을 대체하고 있을뿐입니다.
불러올 이미지의 썸네일 해상도를 조절하시거나 사전에 사이즈에 맞게 오려서 불러오면 더 속도가 향상 될 수 있습니다.
명쾌하고 정확한 답변 감사합니다
설명을 너무 잘해주셔서 이해가 됐습니다.
감사합니당~~이히히히히
답변을 작성하시기 전에 로그인 해주세요.