css3+js實現整屏滑動

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>整屏滾動</title>
<meta content="width=device-width initial-scale=1.0 maximum-scale=1.0 user-scalable=0" name="viewport">
<link rel="stylesheet" href="css/reset.css">
<link rel="stylesheet" href="css/index.css">
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript" src="js/jq_mousewheel.min.js"></script>
<script>
//如下爲鼠標滑輪插件
(function (factory) {
if ( typeof define === 'function' && define.amd ) {
// AMD. Register as an anonymous module.
define(['jquery'], factory);
} else if (typeof exports === 'object') {
// Node/CommonJS style for Browserify
module.exports = factory;
} else {
// Browser globals
factory(jQuery);
}
}(function ($) {

var toFix = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'],
toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ?
['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'],
slice = Array.prototype.slice,
nullLowestDeltaTimeout, lowestDelta;

if ( $.event.fixHooks ) {
for ( var i = toFix.length; i; ) {
$.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
}
}

var special = $.event.special.mousewheel = {
version: '3.1.12',

setup: function() {
if ( this.addEventListener ) {
for ( var i = toBind.length; i; ) {
this.addEventListener( toBind[--i], handler, false );
}
} else {
this.onmousewheel = handler;
}
// Store the line height and page height for this particular element
$.data(this, 'mousewheel-line-height', special.getLineHeight(this));
$.data(this, 'mousewheel-page-height', special.getPageHeight(this));
},

teardown: function() {
if ( this.removeEventListener ) {
for ( var i = toBind.length; i; ) {
this.removeEventListener( toBind[--i], handler, false );
}
} else {
this.onmousewheel = null;
}
// Clean up the data we added to the element
$.removeData(this, 'mousewheel-line-height');
$.removeData(this, 'mousewheel-page-height');
},

getLineHeight: function(elem) {
var $elem = $(elem),
$parent = $elem['offsetParent' in $.fn ? 'offsetParent' : 'parent']();
if (!$parent.length) {
$parent = $('body');
}
return parseInt($parent.css('fontSize'), 10) || parseInt($elem.css('fontSize'), 10) || 16;
},

getPageHeight: function(elem) {
return $(elem).height();
},

settings: {
adjustOldDeltas: true, // see shouldAdjustOldDeltas() below
normalizeOffset: true // calls getBoundingClientRect for each event
}
};

$.fn.extend({
mousewheel: function(fn) {
return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel');
},

unmousewheel: function(fn) {
return this.unbind('mousewheel', fn);
}
});


function handler(event) {
var orgEvent = event || window.event,
args = slice.call(arguments, 1),
delta = 0,
deltaX = 0,
deltaY = 0,
absDelta = 0,
offsetX = 0,
offsetY = 0;
event = $.event.fix(orgEvent);
event.type = 'mousewheel';

// Old school scrollwheel delta
if ( 'detail' in orgEvent ) { deltaY = orgEvent.detail * -1; }
if ( 'wheelDelta' in orgEvent ) { deltaY = orgEvent.wheelDelta; }
if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY; }
if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }

// Firefox < 17 horizontal scrolling related to DOMMouseScroll event
if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
deltaX = deltaY * -1;
deltaY = 0;
}

// Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
delta = deltaY === 0 ? deltaX : deltaY;

// New school wheel delta (wheel event)
if ( 'deltaY' in orgEvent ) {
deltaY = orgEvent.deltaY * -1;
delta = deltaY;
}
if ( 'deltaX' in orgEvent ) {
deltaX = orgEvent.deltaX;
if ( deltaY === 0 ) { delta = deltaX * -1; }
}

// No change actually happened, no reason to go any further
if ( deltaY === 0 && deltaX === 0 ) { return; }

// Need to convert lines and pages to pixels if we aren't already in pixels
// There are three delta modes:
// * deltaMode 0 is by pixels, nothing to do
// * deltaMode 1 is by lines
// * deltaMode 2 is by pages
if ( orgEvent.deltaMode === 1 ) {
var lineHeight = $.data(this, 'mousewheel-line-height');
delta *= lineHeight;
deltaY *= lineHeight;
deltaX *= lineHeight;
} else if ( orgEvent.deltaMode === 2 ) {
var pageHeight = $.data(this, 'mousewheel-page-height');
delta *= pageHeight;
deltaY *= pageHeight;
deltaX *= pageHeight;
}

// Store lowest absolute delta to normalize the delta values
absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );

if ( !lowestDelta || absDelta < lowestDelta ) {
lowestDelta = absDelta;

// Adjust older deltas if necessary
if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
lowestDelta /= 40;
}
}

// Adjust older deltas if necessary
if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
// Divide all the things by 40!
delta /= 40;
deltaX /= 40;
deltaY /= 40;
}

// Get a whole, normalized value for the deltas
delta = Math[ delta >= 1 ? 'floor' : 'ceil' ](delta / lowestDelta);
deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta);
deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta);

// Normalise offsetX and offsetY properties
if ( special.settings.normalizeOffset && this.getBoundingClientRect ) {
var boundingRect = this.getBoundingClientRect();
offsetX = event.clientX - boundingRect.left;
offsetY = event.clientY - boundingRect.top;
}

// Add information to the event object
event.deltaX = deltaX;
event.deltaY = deltaY;
event.deltaFactor = lowestDelta;
event.offsetX = offsetX;
event.offsetY = offsetY;
// Go ahead and set deltaMode to 0 since we converted to pixels
// Although this is a little odd since we overwrite the deltaX/Y
// properties with normalized deltas.
event.deltaMode = 0;

// Add event and delta to the front of the arguments
args.unshift(event, delta, deltaX, deltaY);

// Clearout lowestDelta after sometime to better
// handle multiple device types that give different
// a different lowestDelta
// Ex: trackpad = 3 and mouse wheel = 120
if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);

return ($.event.dispatch || $.event.handle).apply(this, args);
}

function nullLowestDelta() {
lowestDelta = null;
}

function shouldAdjustOldDeltas(orgEvent, absDelta) {
// If this is an older event and the delta is divisable by 120,
// then we are assuming that the browser is treating this as an
// older mouse wheel event and that we should divide the deltas
// by 40 to try and get a more usable deltaFactor.
// Side note, this actually impacts the reported scroll distance
// in older browsers and can cause scrolling to be slower than native.
// Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0;
}

}));
//以上爲鼠標滑輪插件
$(document).ready(function() {
var floor_top = 0; //申明樓層TOP值
var floor_bool = 0; //滾動布爾值
var floor_h = 0; //申明樓層高度值
var floor_index = 0; //申明樓層索引值
var all_floor = $(".floor").length; //獲取樓層數
var floor_li_h = $("#floor_li_wrap").height(); //獲取右邊小按鈕高度
function set_main() {
var window_h = $(window).height(); //獲取窗口高度
var window_w = $(window).width(); //獲取窗口寬度
$("#main,.floor").css({ //設置顯示區域和樓層的高寬（是同樣的）
"width": window_w + "px",
"height": window_h + "px"
});
$("#floor_box").css("top", -(window_h * floor_index) + "px"); //根據當前的窗口高度和樓層索引，算出樓層的TOP值
$("#floor_li_wrap").css({//根據當前的窗口高度,計算右邊小按鈕的TOP值,窗口變化時移動小按鈕到正確的位置
"top": (window_h / 2) - (floor_li_h / 2) + "px",
"right": "20px"
});
}
set_main(); //頁面準備好了就運行一次，設置初始值
$(window).resize(function() { //監聽窗口大小變化
set_main();
})
function change_list(){
$("#floor_li_wrap li").eq(floor_index).find("a").addClass("this_floor_li_a"); //添加當前按鈕樣式
$("#floor_li_wrap li").eq(floor_index).siblings().find("a").removeClass("this_floor_li_a"); //移除其它當前按鈕樣式
}
function change_page(i, ii) { //頁面滾動效果
floor_h = $("#main").height(); //獲取顯示區域高度
var all_floor_h = -(floor_h * (all_floor - 1)); //申明樓層總高度
var floor_box = $("#floor_box");
if (eval(i)) {
floor_bool = 1;
eval(ii);
if (floor_index < 0) {
floor_index = 0;
} else if (floor_index >= (all_floor - 1)) {
floor_index = all_floor - 1;
}
floor_top = -(floor_index * floor_h)
floor_box.animate({
top: floor_top + "px"
}, 1000, "swing", function() {
floor_bool = 0;
})
change_list();
}
}
$(document).bind("mousewheel", function mouseW(event, delta) { //綁定滑輪事件，並向 頁面切換 傳遞參數
if (delta == (-1) && floor_bool == 0) {
var i = "floor_index < all_floor";
var ii = "floor_index += 1";
change_page(i, ii)
} else if (delta == (1) && floor_bool == 0) {
var i = "floor_index > 0";
var ii = "floor_index -= 1";
change_page(i, ii)
}
});
$("#floor_li_wrap li").on("click", function() {
floor_index = $(this).index();//獲取當前li的索引號
fllor_top = -(floor_index * floor_h);
floor_h = $("#main").height(); //獲取顯示區域高度
$("#floor_box").animate({
top: fllor_top + "px"
}, 1000);
change_list();
})
})
</script>
<style>
* {
margin: 0px;
padding: 0px;
list-style-type: none;
}
#main {
width: 100%;
height: 100%;
position: relative;
overflow: hidden;
}
#floor_box {
width: 100%;
height: 100%;
position: absolute;
top: 0;
}
.floor {
width: 100%;
height: 100%;
position: relative;
}
#floor_1 {
background: url('http://www.iunios.com/static/index/img/index/s1_bg2.jpg') no-repeat 0/cover;
}
#floor_2 {
background: #548C00;
}
#floor_3 {
background: #0F7577;
}
#floor_4 {
background: #FF8000;
}
#floor_li_wrap {
width: 10px;
height: auto;
position: fixed;
right: 20px;
top: 200px
}
#floor_li_wrap li {
display: block;
width: 10px;
height: 10px;
margin-bottom: 25px;
cursor: pointer;
}
.floor_li_a {
display: block;
width: 6px;
height: 6px;
margin: 2px;
border-radius: 50%;
background: #E0E0E0;
}
.this_floor_li_a {
width: 10px;
height: 10px;
margin: 0;
background: #0072E3;
}
</style>
</head>
<body>
<div id="main">
<div id="floor_box">
<div id="floor_1" class="floor"></div>
<div id="floor_2" class="floor"></div>
<div id="floor_3" class="floor"></div>
<div id="floor_4" class="floor"></div>
</div>
<div id="floor_li_wrap">
<ul>
<li>
<a class="floor_li_a this_floor_li_a"></a>
</li>
<li>
<a class="floor_li_a"></a>
</li>
<li>
<a class="floor_li_a"></a>
</li>
<li>
<a class="floor_li_a"></a>
</li>
</ul>
</div>
</div>
</body>
</html>