prototype-bridge.js

一个struts和extjs得源码

/*
 * Ext JS Library 2.2.1
 * Copyright(c) 2006-2009, Ext JS, LLC.
 * [e-mail]
 * 
 * http://extjs.com/license
 */

(function(){

var libFlyweight;

Ext.lib.Dom = {
    getViewWidth : function(full){
        return full ? this.getDocumentWidth() : this.getViewportWidth();
    },

    getViewHeight : function(full){
        return full ? this.getDocumentHeight() : this.getViewportHeight();
    },

    getDocumentHeight: function() { // missing from prototype?
        var scrollHeight = (document.compatMode != "CSS1Compat") ? document.body.scrollHeight : document.documentElement.scrollHeight;
        return Math.max(scrollHeight, this.getViewportHeight());
    },

    getDocumentWidth: function() { // missing from prototype?
        var scrollWidth = (document.compatMode != "CSS1Compat") ? document.body.scrollWidth : document.documentElement.scrollWidth;
        return Math.max(scrollWidth, this.getViewportWidth());
    },

    getViewportHeight: function() { // missing from prototype?
        var height = self.innerHeight;
        var mode = document.compatMode;

        if ( (mode || Ext.isIE) && !Ext.isOpera ) {
            height = (mode == "CSS1Compat") ?
                    document.documentElement.clientHeight : // Standards
                    document.body.clientHeight; // Quirks
        }

        return height;
    },

    getViewportWidth: function() { // missing from prototype?
        var width = self.innerWidth;  // Safari
        var mode = document.compatMode;

        if (mode || Ext.isIE) { // IE, Gecko, Opera
            width = (mode == "CSS1Compat") ?
                    document.documentElement.clientWidth : // Standards
                    document.body.clientWidth; // Quirks
        }
        return width;
    },

    isAncestor : function(p, c){ // missing from prototype?
        p = Ext.getDom(p);
        c = Ext.getDom(c);
        if (!p || !c) {return false;}

        if(p.contains && !Ext.isSafari) {
            return p.contains(c);
        }else if(p.compareDocumentPosition) {
            return !!(p.compareDocumentPosition(c) & 16);
        }else{
            var parent = c.parentNode;
            while (parent) {
                if (parent == p) {
                    return true;
                }
                else if (!parent.tagName || parent.tagName.toUpperCase() == "HTML") {
                    return false;
                }
                parent = parent.parentNode;
            }
            return false;
        }
    },

    getRegion : function(el){
        return Ext.lib.Region.getRegion(el);
    },

    getY : function(el){
        return this.getXY(el)[1];
    },

    getX : function(el){
        return this.getXY(el)[0];
    },

    getXY : function(el){ // this initially used Position.cumulativeOffset but it is not accurate enough
        var p, pe, b, scroll, bd = (document.body || document.documentElement);
        el = Ext.getDom(el);

        if(el == bd){
            return [0, 0];
        }

        if (el.getBoundingClientRect) {
            b = el.getBoundingClientRect();
            scroll = fly(document).getScroll();
            return [b.left + scroll.left, b.top + scroll.top];
        }
        var x = 0, y = 0;

        p = el;

        var hasAbsolute = fly(el).getStyle("position") == "absolute";

        while (p) {

            x += p.offsetLeft;
            y += p.offsetTop;

            if (!hasAbsolute && fly(p).getStyle("position") == "absolute") {
                hasAbsolute = true;
            }

            if (Ext.isGecko) {
                pe = fly(p);

                var bt = parseInt(pe.getStyle("borderTopWidth"), 10) || 0;
                var bl = parseInt(pe.getStyle("borderLeftWidth"), 10) || 0;


                x += bl;
                y += bt;


                if (p != el && pe.getStyle('overflow') != 'visible') {
                    x += bl;
                    y += bt;
                }
            }
            p = p.offsetParent;
        }

        if (Ext.isSafari && hasAbsolute) {
            x -= bd.offsetLeft;
            y -= bd.offsetTop;
        }

        if (Ext.isGecko && !hasAbsolute) {
            var dbd = fly(bd);
            x += parseInt(dbd.getStyle("borderLeftWidth"), 10) || 0;
            y += parseInt(dbd.getStyle("borderTopWidth"), 10) || 0;
        }

        p = el.parentNode;
        while (p && p != bd) {
            if (!Ext.isOpera || (p.tagName != 'TR' && fly(p).getStyle("display") != "inline")) {
                x -= p.scrollLeft;
                y -= p.scrollTop;
            }
            p = p.parentNode;
        }
        return [x, y];
    },

    setXY : function(el, xy){ // this initially used Position.cumulativeOffset but it is not accurate enough
        el = Ext.fly(el, '_setXY');
        el.position();
        var pts = el.translatePoints(xy);
        if(xy[0] !== false){
            el.dom.style.left = pts.left + "px";
        }
        if(xy[1] !== false){
            el.dom.style.top = pts.top + "px";
        }
    },

    setX : function(el, x){
        this.setXY(el, [x, false]);
    },

    setY : function(el, y){
        this.setXY(el, [false, y]);
    }
};

Ext.lib.Event = {
    getPageX : function(e){
        return Event.pointerX(e.browserEvent || e);
    },

    getPageY : function(e){
        return Event.pointerY(e.browserEvent || e);
    },

    getXY : function(e){
        e = e.browserEvent || e;
        return [Event.pointerX(e), Event.pointerY(e)];
    },

    getTarget : function(e){
        return Event.element(e.browserEvent || e);
    },

    resolveTextNode: function(node) {
        if (node && 3 == node.nodeType) {
            return node.parentNode;
        } else {
            return node;
        }
    },

    getRelatedTarget: function(ev) { // missing from prototype?
        ev = ev.browserEvent || ev;
        var t = ev.relatedTarget;
        if (!t) {
            if (ev.type == "mouseout") {
                t = ev.toElement;
            } else if (ev.type == "mouseover") {
                t = ev.fromElement;
            }
        }

        return this.resolveTextNode(t);
    },

    on : function(el, eventName, fn){
        Event.observe(el, eventName, fn, false);
    },

    un : function(el, eventName, fn){
        Event.stopObserving(el, eventName, fn, false);
    },

    purgeElement : function(el){
        // no equiv?
    },

    preventDefault : function(e){   // missing from prototype?
        e = e.browserEvent || e;
        if(e.preventDefault) {
            e.preventDefault();
        } else {
            e.returnValue = false;
        }
    },

    stopPropagation : function(e){   // missing from prototype?
        e = e.browserEvent || e;
        if(e.stopPropagation) {
            e.stopPropagation();
        } else {
            e.cancelBubble = true;
        }
    },

    stopEvent : function(e){
        Event.stop(e.browserEvent || e);
    },

    onAvailable : function(id, fn, scope){  // no equiv
        var start = new Date(), iid;
        var f = function(){
            if(start.getElapsed() > 10000){
                clearInterval(iid);
            }
            var el = document.getElementById(id);
            if(el){
                clearInterval(iid);
                fn.call(scope||window, el);
            }
        };
        iid = setInterval(f, 50);
    }
};

Ext.lib.Ajax = function(){
    var createSuccess = function(cb){