place.js

用最近的dojo1.2.1制作前端的ajax购书网站

/*
	Copyright (c) 2004-2008, The Dojo Foundation All Rights Reserved.
	Available via Academic Free License >= 2.1 OR the modified BSD license.
	see: http://dojotoolkit.org/license for details
*/


if(!dojo._hasResource["dijit._base.place"]){
dojo._hasResource["dijit._base.place"]=true;
dojo.provide("dijit._base.place");
dojo.require("dojo.AdapterRegistry");
dijit.getViewport=function(){
var _1=dojo.global;
var _2=dojo.doc;
var w=0,h=0;
var de=_2.documentElement;
var _6=de.clientWidth,_7=de.clientHeight;
if(dojo.isMozilla){
var _8,_9,_a,_b;
var _c=_2.body.clientWidth;
if(_c>_6){
_8=_6;
_a=_c;
}else{
_a=_6;
_8=_c;
}
var _d=_2.body.clientHeight;
if(_d>_7){
_9=_7;
_b=_d;
}else{
_b=_7;
_9=_d;
}
w=(_a>_1.innerWidth)?_8:_a;
h=(_b>_1.innerHeight)?_9:_b;
}else{
if(!dojo.isOpera&&_1.innerWidth){
w=_1.innerWidth;
h=_1.innerHeight;
}else{
if(dojo.isIE&&de&&_7){
w=_6;
h=_7;
}else{
if(dojo.body().clientWidth){
w=dojo.body().clientWidth;
h=dojo.body().clientHeight;
}
}
}
}
var _e=dojo._docScroll();
return {w:w,h:h,l:_e.x,t:_e.y};
};
dijit.placeOnScreen=function(_f,pos,_11,_12){
var _13=dojo.map(_11,function(_14){
return {corner:_14,pos:pos};
});
return dijit._place(_f,_13);
};
dijit._place=function(_15,_16,_17){
var _18=dijit.getViewport();
if(!_15.parentNode||String(_15.parentNode.tagName).toLowerCase()!="body"){
dojo.body().appendChild(_15);
}
var _19=null;
dojo.some(_16,function(_1a){
var _1b=_1a.corner;
var pos=_1a.pos;
if(_17){
_17(_15,_1a.aroundCorner,_1b);
}
var _1d=_15.style;
var _1e=_1d.display;
var _1f=_1d.visibility;
_1d.visibility="hidden";
_1d.display="";
var mb=dojo.marginBox(_15);
_1d.display=_1e;
_1d.visibility=_1f;
var _21=(_1b.charAt(1)=="L"?pos.x:Math.max(_18.l,pos.x-mb.w)),_22=(_1b.charAt(0)=="T"?pos.y:Math.max(_18.t,pos.y-mb.h)),_23=(_1b.charAt(1)=="L"?Math.min(_18.l+_18.w,_21+mb.w):pos.x),_24=(_1b.charAt(0)=="T"?Math.min(_18.t+_18.h,_22+mb.h):pos.y),_25=_23-_21,_26=_24-_22,_27=(mb.w-_25)+(mb.h-_26);
if(_19==null||_27<_19.overflow){
_19={corner:_1b,aroundCorner:_1a.aroundCorner,x:_21,y:_22,w:_25,h:_26,overflow:_27};
}
return !_27;
});
_15.style.left=_19.x+"px";
_15.style.top=_19.y+"px";
if(_19.overflow&&_17){
_17(_15,_19.aroundCorner,_19.corner);
}
return _19;
};
dijit.placeOnScreenAroundNode=function(_28,_29,_2a,_2b){
_29=dojo.byId(_29);
var _2c=_29.style.display;
_29.style.display="";
var _2d=_29.offsetWidth;
var _2e=_29.offsetHeight;
var _2f=dojo.coords(_29,true);
_29.style.display=_2c;
return dijit._placeOnScreenAroundRect(_28,_2f.x,_2f.y,_2d,_2e,_2a,_2b);
};
dijit.placeOnScreenAroundRectangle=function(_30,_31,_32,_33){
return dijit._placeOnScreenAroundRect(_30,_31.x,_31.y,_31.width,_31.height,_32,_33);
};
dijit._placeOnScreenAroundRect=function(_34,x,y,_37,_38,_39,_3a){
var _3b=[];
for(var _3c in _39){
_3b.push({aroundCorner:_3c,corner:_39[_3c],pos:{x:x+(_3c.charAt(1)=="L"?0:_37),y:y+(_3c.charAt(0)=="T"?0:_38)}});
}
return dijit._place(_34,_3b,_3a);
};
dijit.placementRegistry=new dojo.AdapterRegistry();
dijit.placementRegistry.register("node",function(n,x){
return typeof x=="object"&&typeof x.offsetWidth!="undefined"&&typeof x.offsetHeight!="undefined";
},dijit.placeOnScreenAroundNode);
dijit.placementRegistry.register("rect",function(n,x){
return typeof x=="object"&&"x" in x&&"y" in x&&"width" in x&&"height" in x;
},dijit.placeOnScreenAroundRectangle);
dijit.placeOnScreenAroundElement=function(_41,_42,_43,_44){
return dijit.placementRegistry.match.apply(dijit.placementRegistry,arguments);
};
}