yui-ext-core-debug.js

一个使用yui-ext库

/*
 * yui-ext 0.33
 * Copyright(c) 2006, Jack Slocum.
 */

YAHOO.namespace('ext', 'ext.util', 'ext.grid');
YAHOO.ext.Strict = (document.compatMode == 'CSS1Compat');
YAHOO.ext.SSL_SECURE_URL = 'javascript:false';

window.undefined = undefined;

 
 
Function.prototype.createCallback = function(){
    
    var args = arguments;
    var method = this;
    return function() {
        return method.apply(window, args);
    };
};


Function.prototype.createDelegate = function(obj, args, appendArgs){
    var method = this;
    return function() {
        var callArgs = args || arguments;
        if(appendArgs === true){
            callArgs = Array.prototype.slice.call(arguments, 0);
            callArgs = callArgs.concat(args);
        }else if(typeof appendArgs == 'number'){
            callArgs = Array.prototype.slice.call(arguments, 0); 
            var applyArgs = [appendArgs, 0].concat(args); 
            Array.prototype.splice.apply(callArgs, applyArgs); 
        }
        return method.apply(obj || window, callArgs);
    };
};


Function.prototype.defer = function(millis, obj, args, appendArgs){
    return setTimeout(this.createDelegate(obj, args, appendArgs), millis);
};

Function.prototype.createSequence = function(fcn, scope){
    if(typeof fcn != 'function'){
        return this;
    }
    var method = this;
    return function() {
        var retval = method.apply(this || window, arguments);
        fcn.apply(scope || this || window, arguments);
        return retval;
    };
};


YAHOO.util.Event.on(window, 'unload', function(){
    delete Function.prototype.createSequence;
    delete Function.prototype.defer;
    delete Function.prototype.createDelegate;
    delete Function.prototype.createCallback;
    delete Function.prototype.createInterceptor;
});


Function.prototype.createInterceptor = function(fcn, scope){
    if(typeof fcn != 'function'){
        return this;
    }
    var method = this;
    return function() {
        fcn.target = this;
        fcn.method = method;
        if(fcn.apply(scope || this || window, arguments) === false){
            return;
        }
        return method.apply(this || window, arguments);;
    };
};


YAHOO.ext.util.Browser = new function(){
	var ua = navigator.userAgent.toLowerCase();
	
	this.isOpera = (ua.indexOf('opera') > -1);
   	
	this.isSafari = (ua.indexOf('webkit') > -1);
   	
	this.isIE = (window.ActiveXObject);
   	
	this.isIE7 = (ua.indexOf('msie 7') > -1);
   	
	this.isGecko = !this.isSafari && (ua.indexOf('gecko') > -1);
	
	if(ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1){
	    
	    this.isWindows = true;
	}else if(ua.indexOf("macintosh") != -1){
		
	    this.isMac = true;
	}
	if(this.isIE && !this.isIE7){
        try{
            document.execCommand("BackgroundImageCache", false, true);
        }catch(e){}
    }
}();

YAHOO.print = function(arg1, arg2, etc){
    if(!YAHOO.ext._console){
        var cs = YAHOO.ext.DomHelper.insertBefore(document.body.firstChild,
        {tag: 'div',style:'width:250px;height:350px;overflow:auto;border:3px solid #c3daf9;' +
                'background:white;position:absolute;right:5px;top:5px;' +
                'font:normal 8pt arial,verdana,helvetica;z-index:50000;padding:5px;'}, true);
        new YAHOO.ext.Resizable(cs, {
            transparent:true,
            handles: 'all',
            pinned:true, 
            adjustments: [0,0], 
            wrap:true, 
            draggable:(YAHOO.util.DD ? true : false)
        });
        cs.on('dblclick', cs.hide);
        YAHOO.ext._console = cs;
    }
    var msg = '';
    for(var i = 0, len = arguments.length; i < len; i++) {
    	msg += arguments[i] + '<hr noshade style="color:#eeeeee;" size="1">';
    }
    YAHOO.ext._console.dom.innerHTML = msg + YAHOO.ext._console.dom.innerHTML;
    YAHOO.ext._console.dom.scrollTop = 0;
    YAHOO.ext._console.show();
};

YAHOO.printf = function(format, arg1, arg2, etc){
    var args = Array.prototype.slice.call(arguments, 1);
    YAHOO.print(format.replace(
      /\{\{[^{}]*\}\}|\{(\d+)(,\s*([\w.]+))?\}/g,
      function(m, a1, a2, a3) {
        if (m.chatAt == '{') {
          return m.slice(1, -1);
        }
        var rpl = args[a1];
        if (a3) {
          var f = eval(a3);
          rpl = f(rpl);
        }
        return rpl ? rpl : '';
      }));
}

 
YAHOO.util.CustomEvent.prototype.fireDirect = function(){
    var len=this.subscribers.length;
    for (var i=0; i<len; ++i) {
        var s = this.subscribers[i];
        if(s){
            var scope = (s.override) ? s.obj : this.scope;
            if(s.fn.apply(scope, arguments) === false){
                return false;
            }
        }
    }
    return true;
};

YAHOO.extendX = function(subclass, superclass, overrides){
    YAHOO.extend(subclass, superclass);
    subclass.override = function(o){
        YAHOO.override(subclass, o);
    };
    if(!subclass.prototype.override){
        subclass.prototype.override = function(o){
            for(var method in o){
                this[method] = o[method];
            }  
        };
    }
    if(overrides){
        subclass.override(overrides);
    }
};

YAHOO.override = function(origclass, overrides){
    if(overrides){
        var p = origclass.prototype;
        for(var method in overrides){
            p[method] = overrides[method];
        }
    }
};


YAHOO.ext.util.DelayedTask = function(fn, scope, args){
    var timeoutId = null;
    
    
    this.delay = function(delay, newFn, newScope, newArgs){
        if(timeoutId){
            clearTimeout(timeoutId);
        }
        fn = newFn || fn;
        scope = newScope || scope;
        args = newArgs || args;
        timeoutId = setTimeout(fn.createDelegate(scope, args), delay);
    };
    
    
    this.cancel = function(){
        if(timeoutId){
            clearTimeout(timeoutId);
            timeoutId = null;
        }
    };
};


YAHOO.ext.KeyMap = function(el, config, eventName){
    this.el  = getEl(el);
    this.eventName = eventName || 'keydown';
    this.bindings = [];
    if(config instanceof Array){
	    for(var i = 0, len = config.length; i < len; i++){
	        this.addBinding(config[i]);
	    }
    }else{
        this.addBinding(config);
    }
    this.keyDownDelegate = YAHOO.ext.EventManager.wrap(this.handleKeyDown, this, true);
    this.enable();
}

YAHOO.ext.KeyMap.prototype = {
    
	addBinding : function(config){
        var keyCode = config.key, 
            shift = config.shift, 
            ctrl = config.ctrl, 
            alt = config.alt,
            fn = config.fn,
            scope = config.scope;
        if(typeof keyCode == 'string'){
            var ks = [];
            var keyString = keyCode.toUpperCase();
            for(var j = 0, len = keyString.length; j < len; j++){
                ks.push(keyString.charCodeAt(j));
            }
            keyCode = ks;
        }        
        var keyArray = keyCode instanceof Array;
        var handler = function(e){
            if((!shift || e.shiftKey) && (!ctrl || e.ctrlKey) &&  (!alt || e.altKey)){
                var k = e.getKey();
                if(keyArray){
                    for(var i = 0, len = keyCode.length; i < len; i++){
                        if(keyCode[i] == k){
                          fn.call(scope || window, k, e);
                          return;
                        }
                    }
                }else{
                    if(k == keyCode){
                        fn.call(scope || window, k, e);
                    }
                }
            }
        };
        this.bindings.push(handler);  
	},
	
	handleKeyDown : function(e){
	    if(this.enabled){ 
    	    var b = this.bindings;
    	    for(var i = 0, len = b.length; i < len; i++){
    	        b[i](e);
    	    }
	    }
	},
	
	
	isEnabled : function(){
	    return this.enabled;  
	},
	
	
	enable: function(){
		if (!this.enabled){
	        this.el.on(this.eventName, this.keyDownDelegate);
		    this.enabled = true;
		}
	},

	
	disable: function(){
		if (this.enabled){
			this.el.removeListener(this.eventName, this.keyDownDelegate);
		    this.enabled = false;
		}
	}
};


YAHOO.ext.util.Observable = function(){};
YAHOO.ext.util.Observable.prototype = {
    
    fireEvent : function(){
        var ce = this.events[arguments[0].toLowerCase()];
        if(typeof ce == 'object'){
            return ce.fireDirect.apply(ce, Array.prototype.slice.call(arguments, 1));
        }else{
            return true;
        }
    },
    
    addListener : function(eventName, fn, scope, override){
        eventName = eventName.toLowerCase();
        var ce = this.events[eventName];
        if(!ce){
            
            throw 'You are trying to listen for an event that does not exist: "' + eventName + '".';
        }
        if(typeof ce == 'boolean'){
            ce = new YAHOO.util.CustomEvent(eventName);
            this.events[eventName] = ce;
        }
        ce.subscribe(fn, scope, override);
    },
    
    
    delayedListener : function(eventName, fn, scope, delay){
        var newFn = function(){
            setTimeout(fn.createDelegate(scope, arguments), delay || 1);
        }
        this.addListener(eventName, newFn);
        return newFn;
    },
    
    
    bufferedListener : function(eventName, fn, scope, millis){
        var task = new YAHOO.ext.util.DelayedTask();
        var newFn = function(){
            task.delay(millis || 250, fn, scope, Array.prototype.slice.call(arguments, 0));
        }
        this.addListener(eventName, newFn);
        return newFn;
    },
    
    
    removeListener : function(eventName, fn, scope){
        var ce = this.events[eventName.toLowerCase()];
        if(typeof ce == 'object'){
            ce.unsubscribe(fn, scope);
        }
    },
    
    
    purgeListeners : function(){
        for(var evt in this.events){
            if(typeof this.events[evt] == 'object'){
                 this.events[evt].unsubscribeAll();
            }
        }
    }
};

YAHOO.ext.util.Observable.prototype.on = YAHOO.ext.util.Observable.prototype.addListener;


YAHOO.ext.util.Config = {
    
    apply : function(obj, config, defaults){
        if(defaults){
            this.apply(obj, defaults);
        }
        if(config){
            for(var prop in config){
                obj[prop] = config[prop];
            }
        }
        return obj;
    }
};

if(!String.escape){
    String.escape = function(string) {
        return string.replace(/('|\\)/g, "\\$1");
    };
};

String.leftPad = function (val, size, ch) {
    var result = new String(val);
    if (ch == null) {
        ch = " ";
    }
    while (result.length < size) {
        result = ch + result;
    }
    return result;
};


if(YAHOO.util.Connect){
    YAHOO.util.Connect.setHeader = function(o){
		for(var prop in this._http_header){
		    
			if(typeof this._http_header[prop] != 'function'){
				o.conn.setRequestHeader(prop, this._http_header[prop]);
			}
		}
		delete this._http_header;
		this._http_header = {};
		this._has_http_headers = false;
	};   
}

if(YAHOO.util.DragDrop){
    
    YAHOO.util.DragDrop.prototype.defaultPadding = {left:0, right:0, top:0, bottom:0};
    
    
    YAHOO.util.DragDrop.prototype.constrainTo = function(constrainTo, pad, inContent){
        if(typeof pad == 'number'){
            pad = {left: pad, right:pad, top:pad, bottom:pad};
        }