// BEGIN RESIZEPANEL SUBCLASS //

YAHOO.widget.ResizePanel = function(el, userConfig) {

    if (arguments.length > 0) {

        YAHOO.widget.ResizePanel.superclass.constructor.call(this, el, userConfig);

    }

}

YAHOO.widget.ResizePanel.CSS_PANEL_RESIZE = "yui-resizepanel";

YAHOO.widget.ResizePanel.CSS_RESIZE_HANDLE = "resizehandle";

YAHOO.extend(YAHOO.widget.ResizePanel, YAHOO.widget.Panel, {

    init: function(el, userConfig) {
    
        YAHOO.widget.ResizePanel.superclass.init.call(this, el);
    
        this.beforeInitEvent.fire(YAHOO.widget.ResizePanel);
        
        var Dom = YAHOO.util.Dom,
            Event = YAHOO.util.Event,
            oInnerElement = this.innerElement,
            oResizeHandle = document.createElement("DIV"),
            sResizeHandleId = this.id + "_resizehandle";
         
         oResizeHandle.id = sResizeHandleId;
         oResizeHandle.className = YAHOO.widget.ResizePanel.CSS_RESIZE_HANDLE;
    
        Dom.addClass(oInnerElement, YAHOO.widget.ResizePanel.CSS_PANEL_RESIZE);
    
        this.resizeHandle = oResizeHandle;
    
        function initResizeFunctionality() {
    
            var me = this,
                oHeader = this.header,
                oBody = this.body,
                oFooter = this.footer,
                nStartWidth,
                nStartHeight,
                aStartPos,
                nBodyBorderTopWidth,
                nBodyBorderBottomWidth,
                nBodyTopPadding,
                nBodyBottomPadding,
                nBodyOffset;
    
                //set width on load
                //added by Michael
                nStartWidth = oInnerElement.offsetWidth;
                nTest = nStartWidth - 20;
                oBody.style.width = nTest + "px";
                me.cfg.setProperty("width", nStartWidth + "px");

            oInnerElement.appendChild(oResizeHandle);
    
            this.ddResize = new YAHOO.util.DragDrop(sResizeHandleId, this.id);
    
            this.ddResize.setHandleElId(sResizeHandleId);
    
            this.ddResize.onMouseDown = function(e) {
    
                nStartWidth = oInnerElement.offsetWidth;
                nStartHeight = oInnerElement.offsetHeight;
    
                if (YAHOO.env.ua.ie && document.compatMode == "BackCompat") {
                
                    nBodyOffset = 0;
                
                }
                else {
    
                    nBodyBorderTopWidth = parseInt(Dom.getStyle(oBody, "borderTopWidth"), 10),
                    nBodyBorderBottomWidth = parseInt(Dom.getStyle(oBody, "borderBottomWidth"), 10),
                    nBodyTopPadding = parseInt(Dom.getStyle(oBody, "paddingTop"), 10),
                    nBodyBottomPadding = parseInt(Dom.getStyle(oBody, "paddingBottom"), 10),
                    
                    nBodyOffset = nBodyBorderTopWidth + nBodyBorderBottomWidth + nBodyTopPadding + nBodyBottomPadding;
                
                }
    
                me.cfg.setProperty("width", nStartWidth + "px");
    
                aStartPos = [Event.getPageX(e), Event.getPageY(e)];
    
            };
            
            this.ddResize.onDrag = function(e) {
    
                var aNewPos = [Event.getPageX(e), Event.getPageY(e)],
                
                    nOffsetX = aNewPos[0] - aStartPos[0],
                    nOffsetY = aNewPos[1] - aStartPos[1],
                    
                    nNewWidth = Math.max(nStartWidth + nOffsetX, 10),
                    nNewHeight = Math.max(nStartHeight + nOffsetY, 10),
                    
                    nBodyHeight = (nNewHeight - (oFooter.offsetHeight + oHeader.offsetHeight + nBodyOffset));

                    //added by Michael
                    //recalcualte body width, so
                    //that the horizontal scrollbar shows up in IE 6
                    //nBodyWidth = Math.max(nNewWidth - 20,20);
                    nBodyWidth = nNewWidth - 20;
    
                me.cfg.setProperty("width", nNewWidth + "px");
    
                if (nBodyHeight < 0) {
    
                    nBodyHeight = 0;
    
                }
    
                oBody.style.height =  nBodyHeight + "px";

                //set body width, so that
                //the horizontal scrollbar shows up in IE 6
                //added by Michael
                oBody.style.width = nBodyWidth + "px";
    
            };
        
        }
    
    
        function onBeforeShow() {
    
           initResizeFunctionality.call(this);
    
           this.unsubscribe("beforeShow", onBeforeShow);
    
        }
    
    
        function onBeforeRender() {
    
            if (!this.footer) {
    
                this.setFooter("");
    
            }
    
            if (this.cfg.getProperty("visible")) {
    
                initResizeFunctionality.call(this);
    
            }
            else {
    
                this.subscribe("beforeShow", onBeforeShow);
            
            }
            
            this.unsubscribe("beforeRender", onBeforeRender);
    
        }
    
    
        this.subscribe("beforeRender", onBeforeRender);
    
    
        if (userConfig) {
    
            this.cfg.applyConfig(userConfig, true);
    
        }
    
        this.initEvent.fire(YAHOO.widget.ResizePanel);
    
    },
    
    toString: function() {
    
        return "ResizePanel " + this.id;
    
    }

});

// END RESIZEPANEL SUBCLASS //