复制代码代码如下:
// JavaScriptドキュメント
eval(function(p、a、c、k、e、r){e = function(c){return(c <62? '':e(parseint(c/62)))+((c = c%)) 62)> 35?string.fromCharcode(c+29):c.toString(36))}; if( '0'.Replace(0、e)== 0){while(c-)r [e( c)= k [c]; k = [function(e){return r [e] || e}]; e = function(){return '([3-59cf-mo-rt-cg-- np-rt-z] | [12] // w) '}; c = 1}; e(c)+'// b'、 'g')、k [c]); return p}( '4 $、$ b、$ a、$ f、$ d、$ e、$ ce、$ s ;(3(1k){4 o、b、a、f、d、e、ce、s; o = 3(id){5 "2f" == 1L id?g.getelementbyid(id):id}; O.EmptyFunction = 3(){}; o.extend = 3(q、13,1v){9(1V === 1K)1V = 14; j(4 r x 13){9(1V ||!( r x q)){q [r] = 13 [r]}} 5 q}; o.deepextend = 3(q、13){j(4 r x 13){4 1j = 13 [r]; 9(9( q === 1J)継続; 9(1L 1J === "c"){q [r] = m.callee(q [r] || {}、1j)} n {q [r] = 1j} } 5 q}; o.wrapper = 3(me、15){4 1m = 3(){me.t(z、m)}; 4 1n = 3(){}; 1n.17 = 15.17; 1m。 17 = new 1n; 5 1m}; b =(3(u){4 b = {18:/18/.p(u)&&!/1o/.p(u)、1o:/1o/.p( u)、2h:/webkit/.p(u)&&!/1p/.p(u)、2i:/2i/.p(u)、1p:/1p/.p(u)}; 4 1w = ""; j(4 ixb){9(b [i]){1w = "2h" == i? "1k":i; 1q}} b.1k = 1w && 1r( "(?:"+1w+") [////:]([//// d。]+) ")。p(u)?1r。$ 1:" 0 "; b.ie = b.18; b.2j = b.18 && 1t (b.1k、10)== 6; b.ie7 = b.18 && 1t(b.1k、10)== 7; b.2k = b.18 && 1t(b.1k、10)== 8; 5 b} )(1u.navigator.useragent.tolowercase()); a = 3(){4 p = {isarray:3(2l){5 object.17.tostring.19(2L)=== "[C 1V]" }、1x:3(k、w、l){9(k.1x){5 1y(l)?k.1x(w):k.1x(w、l)} n {4 v = k.1l ; l = 1y(l)?0:l <0?1z.2m(l)+v:1z.2n(l); j(; l <v; l ++){9(k [l] === w )5 l} 5-1}}、1a:3(k、w、l){9(k.1a){5 1y(l)?k.1a(w):k.1a(w、l)} n {4 v = k.1l; l = 1y(l)|| l> = v-1?v-1:l <0?1z.2m(l)+v:1z.2n(l); j(j( ; l> -1; l-){9(k [l] === w)5 l} 5-1}}}; 3 11(c、u){9(1k === c.1l) {j(4 oxc){9(y === u(c [o]、o、c))1q}} n {j(4 i = 0、v = c.1l; i <v; i ++){ 9(ixc){9(y === u(c [i]、i、c))1q}}}}; 11({2o:3(c、u、t){11(c、3() {ut(t、m)})}、map:3(c、u、t){4 p = []; 11(c、3(){p.2p(ut(t、m))}); 5 p}、1b:3(c、u、t){4 p = []; 11(c、3(2q){ut(t、m)&& p.2p(2q)}); 5 p}、すべて:3(c、u、t){4 p = 14; 11(c、3(){9(!ut(t、m)){p = y; 5 y}}); 5 p}、いくつか: 3(c、u、t){4 p = y; 11(c、3(){9(ut(t、m)){p = 14; 5 y}}); 5 p}}、3(2r 、o){p [o] = 3(c、u、t){9(c [o]){5 c [o](u、t)} n {5 2r(c、u、t)}}} }); 5 p}(); f =(3(){4 1a = 1V.17.1a; 5 {bind:3(1c、t){4 1b = 1a.19(m、2); 5 3( ){5 1c.t(t、1b.2s(1a.19(m)))}}}、bindaseventlistener:3(1c、t){4 1b = 1a.19(m、2); 5 3(j) {5 1c.t(t、[e.1m(j)]。2s(1b))}}}})(); d = {1d:3(r){4 1c = r?r.2t:g ; 5 1C.2U.2V || 1C.1D.2V}、1e:3(r){4 1c = r?r.2t:g; 5 1c.2w || 1c.1d.2w}、1w :g.1n?3(a、b){5 !!(a.2x(b)&16)}:3(a、b){5 a!= b && a.1w(b)}、h:3(r ){4 q = 0、l = 0、x = 0、y = 0; 9(!r.2y || b.2k){4 n = r; n.offsettop; n = n.offsetparent}; x = q+r.1x; y = l+r.1y} n {4 h = r.2y(); q = x = d.1e(r); l = y = d.1d(r); q+= hq; x+= hx; l+= hl; y+= hy}; 5 {"q":q、 "l":l、 "x":x、 "y" :y}}、clientRect:3(r){4 h = dh(r)、1z = d.1e(r)、20 = d.1d(r); hq- = 1z; hx- = 1z; hl- = 20; hy- = 20; 5 h}、1e:g.1n?3(g){5 g.1n.2z(g、1o)}:3(g){5 g.1f}、getStyle:g .1n?3(g、o){4 k = g.1n.2z(g、1o); 5 oxk?k [o]:k.getPropertyValue(o)}:3(g、o){4 k = gk、1e = g.1f; 9(o == "12"){9(/21 //(12 =(。*)//)/ip(1e.1b)){4 12 = parsefloat(1r。 $ 1); 5 12?12/2a:0} 5 1} 9(o == "2b"){o = "2c"} 4 p = 1e [o] || 1e [s.22(o)]; 9(!/^ - ?// d+(?:px)?$/ip(p)&&/^// - ?// d/.p(p)){4 q = kq、1g = g.runtimestyle 、2e = 1g.q; 1g.q = 1e.q; kq = p || 0; p = k.pixelleft+"px"; kq = q; 1g.q = 2e} 5 p}、23:3(1p 、k、1f){9(!1p.1l){1p = [1p]} 9(1l k == "2f"){4 s = k; k = {}; k [s] = 1f} a。 2o(1p、3(g){j(4 oxk){4 1f = k [o]; 9(o == "12" && b.ie){gk1b =(g.1f && g.1f.1b || "" ).2f(/21 //([^)]*//)/、 "")+"21(12 ="+(1f*2a | 0)+")"} n 9(o == "2b "){gk [b.ie?" 2c ":" cssfloat "] = 1f} n {gk [s.22(o)] = 1f}}})}、getSize:3(g){4 1q = g .1x、1r = g.1y; 9(!1q &&!1r){4 24 =!d.1w(g.1d、g)、15; 9(24){15 = g.parentnode; g.1d.intertbefore (g、g.1d.childnodes [0])} 4 k = gk、2g = {25: "absolute"、26: "hidden"、27: "block"、q: "-2h"、l: " - 2h "}、2i = {25:k.25,26:k.26,27:k.27、q:kq、l:kl}; d.23(g、2g); 1q = g.1x; 1r = g.1y; d.23(g、2i); 9(24){15?15.appendChild(g):g.1d.RemoveChild(g)}} 5 {"1q":1q、 "1R": 1r}}}}; e =(3(){4 1g、1h、v = 1,28 = 3(h、f、m){9(!m。$ v)m。$ v = v ++; 9(! hc)hc = {}; 4 i = hc [f]; 9(!i){i = hc [f] = {}; 9(h ["on"+f]){i [0] = h [ "on"+f]}}}; 9(1u.2a){4 1s = {"mouseenter": "2j"、 "mouseleave": "2k"}; 1g = 3(h、f、m){9 (fx 1s){28(h、f、m); 4 2l = hc [f] [m。$ v] = 3(j){4 1h = j.1t; 9(!1h ||(h!= 1h &&!(h.2x(1h)&16))){m.19(z、j)}}; h.2a(1s [f]、2l、y)} n {h.2a(f、m、y )}}; 1h = 3(h、f、m){9(fx 1s){9(hc && h.c [f]){h.2m(1s [f]、hc [f] [m。$ v] 、y); 2b hc [f] [m。$ v]}} n {h.2m(f、m、y)}}} n {1g = 3(h、f、m){28(h、f 、m); hc [f] [m。$ v] = m; h ["on"+f] = 1i}; 1h = 3(h、f、m){9(hc && h.c [f]){ 2b hc [f] [m。$ v]}}; 3 1i(){4 1j = 14、j = 1m(); 4 i = zc [jf]; j(4 ix i){Z. $ 1I = i [i]; 9(Z. $ 1I(j)=== y){1j = y}} 5 1J}} 3 1m(j){9(j)5 j; j = 1u.j; j。 pagex = j.clientx+d.1e(j.2c); j.pagey = j.clienty+d.1d(j.2c); j.target = j.2c; j.2d = 2d; j.2e = 2e; 4 1t = {"2k":j.toelement、 "2j":j.fromelement} [jf]; 9(1t){j.1t = 1t} 5 j}; 3 2d(){z.cancelbubble = 14}; 3 2e(){z.1j = y}; 5 {"1g":1g、 "1h":1h、 "1m":1m}}); ce =(3(){4 v = 1; 5 {1g:3(c、f、m){9(!m。$$ v)m。$$ v = v ++; 9(!cw)cw = {}; 9(!cw [f]) cw [f] = {}; cw [f] [m。$$ v] = m}、1h:3(c、f、m){9(cw && c.w [f]){2b cw [f] [ m。$$ v]}}、fireevent:3(c、f){9(!cw)5; 4 1b = 1v.17.1a.19(m、2)、i = cw [f]; j(4 ix i){i [i] .t(c、1b)}}、clearevent:3(c){9(!cw)5; j(4 fx cw){4 i = cw [f]; j(4 ix i){i [i] = 1o} cw [f] = 1o} cw = 1o}}}})(); s = {22:3(s){5 s.2f(/ - ([az])) /ig、3(all、2n){5 2n.touppercase()})}} ; $ = o; $ b = b; $ a = a; $ f = f; $ d = d; $ e = e; $ ce = ce; $ s = s})(); '、[]、174 、 '||| function | var | return |||| if |||オブジェクト|||タイプ| elem | ement || style | from | hand | name | ret | left | node || thisp | callback | guid | cusevents | in | false |||| events |||| document | rect | handlers | for | array | top | arguments | else || test | destination |プロパティ|| apply | ua | len | elt | right | bottom | this || exh | ofacity | source | true | parent || prototype | msie | call | slice | args | doc | body | urstyle | value | addevent | removeEvent | remocy | bersion | rength | sixevent | defaultView | null | elems | width | height | fix | relatedtarget || override | vmark | vmark | indexof | isnan | math | lastindexof | fun | getScrolltop | getScrollleft | currentStyle | rtstyle |関連|ハンドルエベント| returnValue |未定義| ins | ins | subclass |オペラ| Chrome | Break | Regexp || Parseint | Window | Array | contains | offsetwidth | offseetth | sleft | stop | alpha | camelize | setStyle | setStyle | cosition | bidibility | display | stray | | addeventlistener | delete | srcelement | stoppopagation | PreventDefault | String || Safari | Firefox | ie6 | ie8 | obj | ceil | foreach | push | item | method | concat | concat | concat | documentlement | scrolltop | scrollLeft | comparingClientRect | getBoundingClientRect | GetComputedStyle | 100 | StyleFloat | | rsleft |交換| cssshow | 9999px | cssback | mouseover | mouseout | fixhandler | removeeventlistener | lette'.split( '|')、0、{});
var imagepreview = function(file、img、options){
this.file = $(file); //文件对象
this.img = $(img); //预览图片对象
this._preload = null; //预载图片对象
this._data = ""; //图像数据
this._upload = null; //リモート模式使用的上传文件对象
var opt = this._setoptions(options);
this.action = opt.action;
this.timeout = opt.timeout;
this.ratio = opt.ratio;
this.maxwidth = opt.maxwidth;
this.maxheight = opt.maxheight;
this.oncheck = opt.oncheck;
this.onshow = opt.onshow;
this.onerr = opt.onerr;
//设置数据获取程序
this._getData = this._getDatafun(opt.mode);
//设置预览显示程序
this._show = opt.mode!== "フィルター"? this._simpleshow:this._filtershow;
};
//根据浏览器获取模式
ImagePreview.Mode = $ B.IE7 || $ b.ie8? "フィルター" :
$ b.firefox? 「ドンファイル」:
$ b.opera || $ B.Chrome || $ b.safari? 「リモート」:「シンプル」;
//透明图片
ImagePreview.transparent = $ b.ie7 || $ b.ie6?
"MHTML:" + document.scripts [document.scripts.length -1] .getAttribute( "src"、4) + "!blankimage":
"データ:画像/gif; base64、r0lgodlhaqabaiaaap /// waaach5baeaaaaalaaaaaaaaaaaaaaaaeaow ==";
ImagePreview.prototype = {
//设置默认属性
_setoptions:function(options){
this.options = {//默认值
モード:ImagePreview.Mode、//预览模式
比率:0、//自定义比例
maxwidth:0、//缩略图宽度
maxheight:0、//缩略图高度
oncheck:function(){}、//预览检测时执行
Onshow:function(){}、//预览图片时执行
onerr:function(){}、//预览错误时执行
//以下在リモート模式时有效
アクション:未定義、//设置アクション
タイムアウト:0 //设置超时(0为不设置)
};
$ .extend(this.options、options || {})を返します。
}、
//开始预览
プレビュー:function(){
if(this.file && false!== this.oncheck()){
this._preview(this._getData());
}
}、
//根据モード返回数据获取程序
_getDatafun:function(mode){
switch(mode){
ケース「フィルター」:
this._filterdataを返します。
ケース「ドンファイル」:
this._domfiledataを返します。
ケース「リモート」:
this._remotedataを返します。
ケース「シンプル」:
デフォルト :
this._simpledataを返します。
}
}、
//滤镜数据获取程序
_filterdata:function(){
this.file.select();
試す{
document.selection.createrange()。テキストを返します。
}最後に{document.selection.empty(); }
}、
// domfile数据获取程序
_domfiledata:function(){
this.file.files [0] .getasdataurl()を返します。
}、
//远程数据获取程序
_remotedata:function(){
this._setupload();
this._upload && this._upload.upload();
}、
//一般数据获取程序
_simpledata:function(){
this.file.valueを返します。
}、
//设置リモート模式的上传文件对象
_setupload:function(){
if(!this._upload && this.action!== undefined && typeof Quickupload === "function"){
var othis = this;
this._upload = new Quickupload(this.file、{
onready:function(){
this.action = othis.action; this.timeout = othis.timeout;
var parameter = this.parameter;
parameter.ratio = othis.ratio;
parameter.width = othis.maxwidth;
parameter.height = othis.maxheight;
}、
onfinish:function(iframe){
試す{
othis._preview(iframe.contentwindow.document.body.innerhtml);
} catch(e){othis._error( "remote error"); }
}、
ontimeout:function(){othis._error( "タイムアウトエラー"); }
});
}
}、
//预览程序
_preview:function(data){
//空值或相同的值不执行显示
if(!! data && data!== this._data){
this._data = data; this._show();
}
}、
//设置一般预载图片对象
_simplepreload:function(){
if(!this._preload){
var preload = this._preload = new image()、othis = this、
onload = function(){othis._imgshow(othis._data、this.width、this.height); };
this._onload = function(){this.onload = null; onload.call(this); }
preload.onload = $ b.ie? this._onload:onload;
preload.onerror = function(){othis._error(); };
} else if($ b.ie){
this._preload.onload = this._onload;
}
}、
//一般显示
_simpleshow:function(){
this._simplepreload();
this._preload.src = this._data;
}、
//设置滤镜预载图片对象
_filterpreload:function(){
if(!this._preload){
var preload = this._preload = document.createelement( "div");
//隐藏并设置滤镜
$ d.setStyle(Preload、{
幅: "1px"、height: "1px"、
可視性:「隠された」、位置:「絶対」、左:「-9999px」、トップ: "-9999px"、
フィルター:「progid:dmimagetransform.microsoft.alphaimageloader(sizingmethod = 'image') "
});
//插入ボディ
var body = document.body; body.insertbefore(preload、body.childnodes [0]);
}
}、
//滤镜显示
_filtershow:function(){
this._filterpreload();
var preload = this._preload、
data = this._data.Replace(/[) '"%]/g、function(s){return Escase(escase(s));});
試す{
preload.filters.item( "dxmingagetransform.microsoft.alphaimageloader")。src = data;
} catch(e){this._error( "フィルターエラー");戻る; }
//设置滤镜并显示
this.img.style.filter = "progid:dmincigetransform.microsoft.alphaimageloader(sizingmethod = 'scale'、src =/" " + data +"/")";
this._imgshow(imagepreview.transparent、preload.offsetwidth、preload.offsetheight);
}、
//显示预览
_imgshow:function(src、width、height){
var img = this.img、style = img.style、
比率= math.max(0、this.ratio)|| math.min(1、
math.max(0、this.maxwidth) / width || 1、
Math.max(0、this.maxheight) / height || 1
);
//设置预览尺寸
style.width = math.round(width * ratio) + "px";
style.height = math.round(height * ratio) + "px";
// src
img.src = src;
this.onshow();
}、
//销毁程序
処分:function(){
//销毁上传文件对象
if(this._upload){
this._upload.dispose(); this._upload = null;
}
//销毁预载图片对象
if(this._preload){
var preload = this._preload、parent = preload.parentnode;
this._preload = preload.onload = preload.onerror = null;
親&& parent.RemoveChild(Preload);
}
//销毁相关对象
this.file = this.img = null;
}、
//出错
_error:function(err){
this.onerr(err);
}
}
调用方法如下
复制代码代码如下:
<入力id = "idfile" type = "file" name = "pic"/> <img id = "idimg" src = "// www.vevb.com/"/>
<スクリプト>
var ip = new ImagePreview($$( "idfile")、$$( "idimg")、{
MaxWidth:200、MaxHeight:2000、Action: "ImagePreview.Ashx"
});
ip.img.src = imagepreview.transparent;
ip.file.onchange = function(){ip.preview(); };
</script>