util.js

数据库系统教材中附录的课程设计accomodation宿舍管理系统源码

Ext.util.MixedCollection=function(B,A){this.items=[];this.map={};this.keys=[];this.length=0;this.addEvents({"clear":true,"add":true,"replace":true,"remove":true,"sort":true});this.allowFunctions=B===true;if(A){this.getKey=A}Ext.util.MixedCollection.superclass.constructor.call(this)};Ext.extend(Ext.util.MixedCollection,Ext.util.Observable,{allowFunctions:false,add:function(B,C){if(arguments.length==1){C=arguments[0];B=this.getKey(C)}if(typeof B=="undefined"||B===null){this.length++;this.items.push(C);this.keys.push(null)}else{var A=this.map[B];if(A){return this.replace(B,C)}this.length++;this.items.push(C);this.map[B]=C;this.keys.push(B)}this.fireEvent("add",this.length-1,C,B);return C},getKey:function(A){return A.id},replace:function(C,D){if(arguments.length==1){D=arguments[0];C=this.getKey(D)}var A=this.item(C);if(typeof C=="undefined"||C===null||typeof A=="undefined"){return this.add(C,D)}var B=this.indexOfKey(C);this.items[B]=D;this.map[C]=D;this.fireEvent("replace",C,A,D);return D},addAll:function(E){if(arguments.length>1||E instanceof Array){var B=arguments.length>1?arguments:E;for(var D=0,A=B.length;D<A;D++){this.add(B[D])}}else{for(var C in E){if(this.allowFunctions||typeof E[C]!="function"){this.add(C,E[C])}}}},each:function(E,D){var B=[].concat(this.items);for(var C=0,A=B.length;C<A;C++){if(E.call(D||B[C],B[C],C,A)===false){break}}},eachKey:function(D,C){for(var B=0,A=this.keys.length;B<A;B++){D.call(C||window,this.keys[B],this.items[B],B,A)}},find:function(D,C){for(var B=0,A=this.items.length;B<A;B++){if(D.call(C||window,this.items[B],this.keys[B])){return this.items[B]}}return null},insert:function(A,B,C){if(arguments.length==2){C=arguments[1];B=this.getKey(C)}if(A>=this.length){return this.add(B,C)}this.length++;this.items.splice(A,0,C);if(typeof B!="undefined"&&B!=null){this.map[B]=C}this.keys.splice(A,0,B);this.fireEvent("add",A,C,B);return C},remove:function(A){return this.removeAt(this.indexOf(A))},removeAt:function(A){if(A<this.length&&A>=0){this.length--;var C=this.items[A];this.items.splice(A,1);var B=this.keys[A];if(typeof B!="undefined"){delete this.map[B]}this.keys.splice(A,1);this.fireEvent("remove",C,B);return C}return false},removeKey:function(A){return this.removeAt(this.indexOfKey(A))},getCount:function(){return this.length},indexOf:function(A){return this.items.indexOf(A)},indexOfKey:function(A){return this.keys.indexOf(A)},item:function(A){var B=typeof this.map[A]!="undefined"?this.map[A]:this.items[A];return typeof B!="function"||this.allowFunctions?B:null},itemAt:function(A){return this.items[A]},key:function(A){return this.map[A]},contains:function(A){return this.indexOf(A)!=-1},containsKey:function(A){return typeof this.map[A]!="undefined"},clear:function(){this.length=0;this.items=[];this.keys=[];this.map={};this.fireEvent("clear")},first:function(){return this.items[0]},last:function(){return this.items[this.length-1]},_sort:function(I,A,H){var C=String(A).toUpperCase()=="DESC"?-1:1;H=H||function(K,J){return K-J};var G=[],B=this.keys,F=this.items;for(var D=0,E=F.length;D<E;D++){G[G.length]={key:B[D],value:F[D],index:D}}G.sort(function(K,J){var L=H(K[I],J[I])*C;if(L==0){L=(K.index<J.index?-1:1)}return L});for(var D=0,E=G.length;D<E;D++){F[D]=G[D].value;B[D]=G[D].key}this.fireEvent("sort",this)},sort:function(A,B){this._sort("value",A,B)},keySort:function(A,B){this._sort("key",A,B||function(D,C){return String(D).toUpperCase()-String(C).toUpperCase()})},getRange:function(E,A){var B=this.items;if(B.length<1){return[]}E=E||0;A=Math.min(typeof A=="undefined"?this.length-1:A,this.length-1);var D=[];if(E<=A){for(var C=E;C<=A;C++){D[D.length]=B[C]}}else{for(var C=E;C>=A;C--){D[D.length]=B[C]}}return D},filter:function(C,B,D,A){if(Ext.isEmpty(B,false)){return this.clone()}B=this.createValueMatcher(B,D,A);return this.filterBy(function(E){return E&&B.test(E[C])})},filterBy:function(F,E){var G=new Ext.util.MixedCollection();G.getKey=this.getKey;var B=this.keys,D=this.items;for(var C=0,A=D.length;C<A;C++){if(F.call(E||this,D[C],B[C])){G.add(B[C],D[C])}}return G},findIndex:function(C,B,E,D,A){if(Ext.isEmpty(B,false)){return -1}B=this.createValueMatcher(B,D,A);return this.findIndexBy(function(F){return F&&B.test(F[C])},null,E)},findIndexBy:function(F,E,G){var B=this.keys,D=this.items;for(var C=(G||0),A=D.length;C<A;C++){if(F.call(E||this,D[C],B[C])){return C}}if(typeof G=="number"&&G>0){for(var C=0;C<G;C++){if(F.call(E||this,D[C],B[C])){return C}}}return -1},createValueMatcher:function(B,C,A){if(!B.exec){B=String(B);B=new RegExp((C===true?"":"^")+Ext.escapeRe(B),A?"":"i")}return B},clone:function(){var E=new Ext.util.MixedCollection();var B=this.keys,D=this.items;for(var C=0,A=D.length;C<A;C++){E.add(B[C],D[C])}E.getKey=this.getKey;return E}});Ext.util.MixedCollection.prototype.get=Ext.util.MixedCollection.prototype.item;
Ext.util.JSON=new (function(){var useHasOwn={}.hasOwnProperty?true:false;var pad=function(n){return n<10?"0"+n:n};var m={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r","\"":"\\\"","\\":"\\\\"};var encodeString=function(s){if(/["\\\x00-\x1f]/.test(s)){return"\""+s.replace(/([\x00-\x1f\\"])/g,function(a,b){var c=m[b];if(c){return c}c=b.charCodeAt();return"\\u00"+Math.floor(c/16).toString(16)+(c%16).toString(16)})+"\""}return"\""+s+"\""};var encodeArray=function(o){var a=["["],b,i,l=o.length,v;for(i=0;i<l;i+=1){v=o[i];switch(typeof v){case"undefined":case"function":case"unknown":break;default:if(b){a.push(",")}a.push(v===null?"null":Ext.util.JSON.encode(v));b=true}}a.push("]");return a.join("")};var encodeDate=function(o){return"\""+o.getFullYear()+"-"+pad(o.getMonth()+1)+"-"+pad(o.getDate())+"T"+pad(o.getHours())+":"+pad(o.getMinutes())+":"+pad(o.getSeconds())+"\""};this.encode=function(o){if(typeof o=="undefined"||o===null){return"null"}else{if(o instanceof Array){return encodeArray(o)}else{if(o instanceof Date){return encodeDate(o)}else{if(typeof o=="string"){return encodeString(o)}else{if(typeof o=="number"){return isFinite(o)?String(o):"null"}else{if(typeof o=="boolean"){return String(o)}else{var a=["{"],b,i,v;for(i in o){if(!useHasOwn||o.hasOwnProperty(i)){v=o[i];switch(typeof v){case"undefined":case"function":case"unknown":break;default:if(b){a.push(",")}a.push(this.encode(i),":",v===null?"null":this.encode(v));b=true}}}a.push("}");return a.join("")}}}}}}};this.decode=function(json){return eval("("+json+")")}})();Ext.encode=Ext.util.JSON.encode;Ext.decode=Ext.util.JSON.decode;
Ext.util.Format=function(){var trimRe=/^\s+|\s+$/g;return{ellipsis:function(value,len){if(value&&value.length>len){return value.substr(0,len-3)+"..."}return value},undef:function(value){return value!==undefined?value:""},defaultValue:function(value,defaultValue){return value!==undefined&&value!==""?value:defaultValue},htmlEncode:function(value){return !value?value:String(value).replace(/&/g,"&amp;").replace(/>/g,"&gt;").replace(/</g,"&lt;").replace(/"/g,"&quot;")},htmlDecode:function(value){return !value?value:String(value).replace(/&amp;/g,"&").replace(/&gt;/g,">").replace(/&lt;/g,"<").replace(/&quot;/g,"\"")},trim:function(value){return String(value).replace(trimRe,"")},substr:function(value,start,length){return String(value).substr(start,length)},lowercase:function(value){return String(value).toLowerCase()},uppercase:function(value){return String(value).toUpperCase()},capitalize:function(value){return !value?value:value.charAt(0).toUpperCase()+value.substr(1).toLowerCase()},call:function(value,fn){if(arguments.length>2){var args=Array.prototype.slice.call(arguments,2);args.unshift(value);return eval(fn).apply(window,args)}else{return eval(fn).call(window,value)}},usMoney:function(v){v=(Math.round((v-0)*100))/100;v=(v==Math.floor(v))?v+".00":((v*10==Math.floor(v*10))?v+"0":v);v=String(v);var ps=v.split(".");var whole=ps[0];var sub=ps[1]?"."+ps[1]:".00";var r=/(\d+)(\d{3})/;while(r.test(whole)){whole=whole.replace(r,"$1"+","+"$2")}v=whole+sub;if(v.charAt(0)=="-"){return"-$"+v.substr(1)}return"$"+v},date:function(v,format){if(!v){return""}if(!(v instanceof Date)){v=new Date(Date.parse(v))}return v.dateFormat(format||"m/d/Y")},dateRenderer:function(format){return function(v){return Ext.util.Format.date(v,format)}},stripTagsRE:/<\/?[^>]+>/gi,stripTags:function(v){return !v?v:String(v).replace(this.stripTagsRE,"")},stripScriptsRe:/(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)/ig,stripScripts:function(v){return !v?v:String(v).replace(this.stripScriptsRe,"")},fileSize:function(size){if(size<1024){return size+" bytes"}else{if(size<1048576){return(Math.round(((size*10)/1024))/10)+" KB"}else{return(Math.round(((size*10)/1048576))/10)+" MB"}}},math:function(){var fns={};return function(v,a){if(!fns[a]){fns[a]=new Function("v","return v "+a+";")}return fns[a](v)}}()}}();
Ext.util.CSS=function(){var D=null;var C=document;var B=/(-[a-z])/gi;var A=function(E,F){return F.charAt(1).toUpperCase()};return{createStyleSheet:function(G,J){var F;var E=C.getElementsByTagName("head")[0];var I=C.createElement("style");I.setAttribute("type","text/css");if(J){I.setAttribute("id",J)}if(Ext.isIE){E.appendChild(I);F=I.styleSheet;F.cssText=G}else{try{I.appendChild(C.createTextNode(G))}catch(H){I.cssText=G}E.appendChild(I);F=I.styleSheet?I.styleSheet:(I.sheet||C.styleSheets[C.styleSheets.length-1])}this.cacheStyleSheet(F);return F},removeStyleSheet:function(F){var E=C.getElementById(F);if(E){E.parentNode.removeChild(E)}},swapStyleSheet:function(G,E){this.removeStyleSheet(G);var F=C.createElement("link");F.setAttribute("rel","stylesheet");F.setAttribute("type","text/css");F.setAttribute("id",G);F.setAttribute("href",E);C.getElementsByTagName("head")[0].appendChild(F)},refreshCache:function(){return this.getRules(true)},cacheStyleSheet:function(F){if(!D){D={}}try{var H=F.cssRules||F.rules;for(var E=H.length-1;E>=0;--E){D[H[E].selectorText]=H[E]}}catch(G){}},getRules:function(F){if(D==null||F){D={};var H=C.styleSheets;for(var G=0,E=H.length;G<E;G++){try{this.cacheStyleSheet(H[G])}catch(I){}}}return D},getRule:function(E,G){var F=this.getRules(G);if(!(E instanceof Array)){return F[E]}for(var H=0;H<E.length;H++){if(F[E[H]]){return F[E[H]]}}return null},updateRule:function(E,H,G){if(!(E instanceof Array)){var I=this.getRule(E);if(I){I.style[H.replace(B,A)]=G;return true}}else{for(var F=0;F<E.length;F++){if(this.updateRule(E[F],H,G)){return true}}}return false}}}();
Ext.util.ClickRepeater=function(B,A){this.el=Ext.get(B);this.el.unselectable();Ext.apply(this,A);this.addEvents({"mousedown":true,"click":true,"mouseup":true});this.el.on("mousedown",this.handleMouseDown,this);if(this.preventDefault||this.stopDefault){this.el.on("click",function(C){if(this.preventDefault){C.preventDefault()}if(this.stopDefault){C.stopEvent()}},this)}if(this.handler){this.on("click",this.handler,this.scope||this)}Ext.util.ClickRepeater.superclass.constructor.call(this)};Ext.extend(Ext.util.ClickRepeater,Ext.util.Observable,{interval:20,delay:250,preventDefault:true,stopDefault:false,timer:0,handleMouseDown:function(){clearTimeout(this.timer);this.el.blur();if(this.pressClass){this.el.addClass(this.pressClass)}this.mousedownTime=new Date();Ext.getDoc().on("mouseup",this.handleMouseUp,this);this.el.on("mouseout",this.handleMouseOut,this);this.fireEvent("mousedown",this);this.fireEvent("click",this);if(this.accelerate){this.delay=400}this.timer=this.click.defer(this.delay||this.interval,this)},click:function(){this.fireEvent("click",this);this.timer=this.click.defer(this.accelerate?this.easeOutExpo(this.mousedownTime.getElapsed(),400,-390,12000):this.interval,this)},easeOutExpo:function(B,A,D,C){return(B==C)?A+D:D*(-Math.pow(2,-10*B/C)+1)+A},handleMouseOut:function(){clearTimeout(this.timer);if(this.pressClass){this.el.removeClass(this.pressClass)}this.el.on("mouseover",this.handleMouseReturn,this)},handleMouseReturn:function(){this.el.un("mouseover",this.handleMouseReturn);if(this.pressClass){this.el.addClass(this.pressClass)}this.click()},handleMouseUp:function(){clearTimeout(this.timer);this.el.un("mouseover",this.handleMouseReturn);this.el.un("mouseout",this.handleMouseOut);Ext.getDoc().un("mouseup",this.handleMouseUp);this.el.removeClass(this.pressClass);this.fireEvent("mouseup",this)}});
Ext.KeyNav=function(B,A){this.el=Ext.get(B);Ext.apply(this,A);if(!this.disabled){this.disabled=true;this.enable()}};Ext.KeyNav.prototype={disabled:false,defaultEventAction:"stopEvent",forceKeyDown:false,prepareEvent:function(C){var A=C.getKey();var B=this.keyToHandler[A];if(Ext.isSafari&&B&&A>=37&&A<=40){C.stopEvent()}},relay:function(C){var A=C.getKey();var B=this.keyToHandler[A];if(B&&this[B]){if(this.doRelay(C,this[B],B)!==true){C[this.defaultEventAction]()}}},doRelay:function(C,B,A){return B.call(this.scope||this,C)},enter:false,left:false,right:false,up:false,down:false,tab:false,esc:false,pageUp:false,pageDown:false,del:false,home:false,end:false,keyToHandler:{37:"left",39:"right",38:"up",40:"down",33:"pageUp",34:"pageDown",46:"del",36:"home",35:"end",13:"enter",27:"esc",9:"tab"},enable:function(){if(this.disabled){if(this.forceKeyDown||Ext.isIE||Ext.isAir){this.el.on("keydown",this.relay,this)}else{this.el.on("keydown",this.prepareEvent,this);this.el.on("keypress",this.relay,this)}this.disabled=false}},disable:function(){if(!this.disabled){if(this.forceKeyDown||Ext.isIE||Ext.isAir){this.el.un("keydown",this.relay)}else{this.el.un("keydown",this.prepareEvent);this.el.un("keypress",this.relay)}this.disabled=true}}};
Ext.KeyMap=function(C,B,A){this.el=Ext.get(C);this.eventName=A||"keydown";this.bindings=[];if(B){this.addBinding(B)}this.enable()};Ext.KeyMap.prototype={stopEvent:false,addBinding:function(D){if(D instanceof Array){for(var F=0,H=D.length;F<H;F++){this.addBinding(D[F])}return }var N=D.key,C=D.shift,A=D.ctrl,G=D.alt,J=D.fn,M=D.scope;if(typeof N=="string"){var K=[];var I=N.toUpperCase();for(var E=0,H=I.length;E<H;E++){K.push(I.charCodeAt(E))}N=K}var B=N instanceof Array;var L=function(R){if((!C||R.shiftKey)&&(!A||R.ctrlKey)&&(!G||R.altKey)){var P=R.getKey();if(B){for(var Q=0,O=N.length;Q<O;Q++){if(N[Q]==P){if(this.stopEvent){R.stopEvent()}J.call(M||window,P,R);return }}}else{if(P==N){if(this.stopEvent){R.stopEvent()}J.call(M||window,P,R)}}}};this.bindings.push(L)},on:function(B,D,C){var G,A,E,F;if(typeof B=="object"&&!(B instanceof Array)){G=B.key;A=B.shift;E=B.ctrl;F=B.alt}else{G=B}this.addBinding({key:G,shift:A,ctrl:E,alt:F,fn:D,scope:C})},handleKeyDown:function(D){if(this.enabled){var B=this.bindings;for(var C=0,A=B.length;C<A;C++){B[C].call(this,D)}}},isEnabled:function(){return this.enabled},enable:function(){if(!this.enabled){this.el.on(this.eventName,this.handleKeyDown,this);this.enabled=true}},disable:function(){if(this.enabled){this.el.removeListener(this.eventName,this.handleKeyDown,this);this.enabled=false}}};
Ext.util.TextMetrics=function(){var A;return{measure:function(B,C,D){if(!A){A=Ext.util.TextMetrics.Instance(B,D)}A.bind(B);A.setFixedWidth(D||"auto");return A.getSize(C)},createInstance:function(B,C){return Ext.util.TextMetrics.Instance(B,C)}}}();Ext.util.TextMetrics.Instance=function(B,D){var C=new Ext.Element(document.createElement("div"));document.body.appendChild(C.dom);C.position("absolute");C.setLeftTop(-1000,-1000);C.hide();if(D){C.setWidth(D)}var A={getSize:function(F){C.update(F);var E=C.getSize();C.update("");return E},bind:function(E){C.setStyle(Ext.fly(E).getStyles("font-size","font-style","font-weight","font-family","line-height"))},setFixedWidth:function(E){C.setWidth(E)},getWidth:function(E){C.dom.style.width="auto";return this.getSize(E).width},getHeight:function(E){return this.getSize(E).height}};A.bind(B);return A};Ext.Element.measureText=Ext.util.TextMetrics.measure;