hm_scriptns4.js

研究怎样通过手写代码来完成自动生成代码

	this.permHilite  = eval(this.array[3]);
	this.hasRollover = (!this.permHilite && eval(this.array[2]));
	this.hasMore	 = eval(this.array[4]) && HM_f_ValidateArray(HM_ArrayIDPrefix + itemidsuffix);
	var HtmlStrings = HM_f_GetItemHtmlStr(this.dispText);
	this.htmStr = HtmlStrings[0];
	this.htmStrOver = HtmlStrings[1];
	this.visibility = "inherit";
    this.onmouseover = HM_f_ItemOver;
   	this.onmouseout  = HM_f_ItemOut;
	this.menu.lastItem = this;

    if (this.linkText) {
		this.captureEvents(Event.MOUSEUP);
       	this.onmouseup = HM_f_LinkIt;
    }
	if (this.menu.isHorizontal) {
    	if (this.index) this.left = this.siblingBelow.left + this.siblingBelow.clip.width + HM_SeparatorSize;
		else this.left = (HM_BorderWidth + HM_ItemPadding);
		this.top = (HM_BorderWidth + HM_ItemPadding);
	}
	else {
		this.left = (HM_BorderWidth + HM_ItemPadding);
	    if (this.index) this.top = this.siblingBelow.top + this.siblingBelow.clip.height + HM_SeparatorSize;
    	else this.top = (HM_BorderWidth + HM_ItemPadding)
	}
    this.clip.top = this.clip.left = -HM_ItemPadding;
    this.clip.right = this.tree.ItemWidth - HM_ItemPadding;
	this.bgColor = this.permHilite ? this.tree.BGColorOver : this.tree.BGColor;

	this.txtLyrOff = new Layer(HM_CurrentTree.ItemTextWidth - (HM_ItemPadding*2),this);

	with(this.txtLyrOff) {
		document.write(this.htmStr);
		document.close();
		if (HM_CurrentTree.RightToLeft && this.menu.showImage) left = HM_ItemPadding + HM_ImageSize + HM_ImageHorizSpace;
		visibility = this.permHilite ? "hide" : "inherit";
	}

	if(this.tree.NSFontOver) {
		this.txtLyrOn = new Layer(HM_CurrentTree.ItemTextWidth - (HM_ItemPadding*2),this);
		with(this.txtLyrOn) {
			if (HM_CurrentTree.RightToLeft && this.menu.showImage) left = HM_ItemPadding + HM_ImageSize + HM_ImageHorizSpace;
			visibility = this.permHilite ? "inherit" : "hide";
		}
	}

	this.fullClip = this.txtLyrOff.document.height + (HM_ItemPadding * 2);
	if(this.menu.isHorizontal) {
		if(this.index) {
			var SiblingHeight = this.siblingBelow.clip.height;
			this.fullClip = Math.max(SiblingHeight,this.fullClip);
			if(this.fullClip > SiblingHeight) {
				var SiblingPrevious = this.siblingBelow;
				while(SiblingPrevious != null) {
					SiblingPrevious.clip.height = this.fullClip;
					SiblingPrevious = SiblingPrevious.siblingBelow;
				}
			}
		}
	}
	this.clip.height = this.fullClip;

	this.dummyLyr = new Layer(100,this);
	with(this.dummyLyr) {
		left = top = -HM_ItemPadding;
		clip.width = this.clip.width;
		clip.height = this.clip.height;
		visibility = "inherit";
	}

	if(this.hasMore && HM_CurrentMenu.showImage) {
		this.imgLyr = new Layer(HM_ImageSize,this);
		with(this.imgLyr) {
			document.write("<IMG SRC='" + (HM_CurrentTree.RightToLeft ? HM_ImageSrcLeft : HM_ImageSrc) + "' WIDTH=" + HM_ImageSize + " VSPACE=0 HSPACE=0 BORDER=0>");
			document.close();
			moveBelow(this.txtLyrOff);
			left = (HM_CurrentTree.RightToLeft) ? HM_ImageHorizSpace : this.tree.ItemWidth - (HM_ItemPadding * 2) - HM_ImageSize - HM_ImageHorizSpace;
			top = HM_ImageVertSpace;
			visibility = "inherit";
		}
	}
}

function HM_f_PopUp(menuname,e){
    if (!HM_AreLoaded) return;
	menuname = menuname.replace("elMenu",HM_MenuIDPrefix);
	var TempMenu = eval("window."+menuname);
	if(!TempMenu)return;
	HM_CurrentMenu = TempMenu;
	if (HM_ClickStart) {
		var ClickElement = e.target;
		ClickElement.onclick = HM_f_PopMenu;
    }
	else HM_f_PopMenu(e);
}

function HM_f_PopMenu(e){
    if (!HM_AreLoaded || !HM_AreCreated) return true;
    if (HM_ClickStart && e.type != "click") return true;
    HM_f_HideAll();
    HM_CurrentMenu.hasParent = false;
	HM_CurrentMenu.tree.startChild = HM_CurrentMenu;
	HM_CurrentMenu.xPos = (HM_CurrentMenu.tree.MenuLeft!=null) ? HM_CurrentMenu.tree.MenuLeft : e.pageX;
   	HM_CurrentMenu.yPos = (HM_CurrentMenu.tree.MenuTop!=null)  ? HM_CurrentMenu.tree.MenuTop  : e.pageY;
    HM_CurrentMenu.keepInWindow();
    HM_CurrentMenu.moveTo(HM_CurrentMenu.xPos,HM_CurrentMenu.yPos);
    HM_CurrentMenu.isOn = true;
    HM_CurrentMenu.showIt(true);
    return false;
}

function HM_f_MenuOver() {
	if(!this.tree.startChild){this.tree.startChild = this}
	if(this.tree.startChild == this) HM_f_HideAll(this)
    this.isOn = true;
    HM_UserOverMenu = true;
    HM_CurrentMenu = this;
    if (this.hideTimer) clearTimeout(this.hideTimer);
}

function HM_f_MenuOut() {
    this.isOn = false;
    HM_UserOverMenu = false;
    if(HM_StatusDisplayLink) status = "";
    if(!HM_ClickKill) HM_HideAllTimer = setTimeout("HM_CurrentMenu.hideTree()",10);  
}

function HM_f_ItemOver(){
    if (HM_KeepHilite) {
        if (this.menu.currentItem && this.menu.currentItem != this && this.menu.currentItem.hasRollover) {
            with(this.menu.currentItem){
				bgColor = this.tree.BGColor;
				if(this.tree.NSFontOver) {
    	    	    txtLyrOff.visibility = "inherit";
					txtLyrOn.visibility = "hide";
				}
			}
        }
    }
	if(this.hasRollover) {
	    this.bgColor = this.tree.BGColorOver;
		if(this.tree.NSFontOver) {
			if(!this.txtLyrOn.isWritten){
				this.txtLyrOn.document.write(this.htmStrOver);
				this.txtLyrOn.document.close();
				this.txtLyrOn.isWritten = true;
			}
			this.txtLyrOff.visibility = "hide";
			this.txtLyrOn.visibility = "inherit";
		}
	}

    if(HM_StatusDisplayLink) status = this.linkText;
    this.menu.currentItem = this;
	if (this.menu.hasChildVisible) {
		if(this.menu.visibleChild == this.child && this.menu.visibleChild.hasChildVisible) this.menu.visibleChild.hideChildren(this);
		else this.menu.hideChildren(this);
    }

    if (this.hasMore) {
		if(!this.child) {
			HM_CurrentTree = this.tree;
			HM_CurrentMenu = this.menu;
			HM_CurrentItem = this;
			this.child = HM_f_MakeMenu(this.menu.count + "_"+(this.index+1));
			this.tree.treeParent = this.menu;
			this.tree.startChild = this.menu;
		}
		if (this.tree.PositionUnder && (this.menu == this.tree.treeParent)) {
			this.child.xPos = this.pageX + this.clip.left - HM_BorderWidth;
			this.child.yPos = this.menu.top + this.menu.clip.height - HM_BorderWidth;
		}
		else {
			this.oL = this.pageX + this.clip.left;
			this.child.offsetWidth = this.child.clip.width;
			this.oT = this.pageY + this.clip.top - HM_BorderWidth;
			if(this.tree.RightToLeft) {
				this.child.xPos = this.oL + (this.tree.HorizOffsetRight - this.child.offsetWidth);
			}
			else {		
				this.child.xPos = this.oL + this.tree.HorizOffsetLeft;
			}
			this.child.yPos = this.oT + HM_ChildOffset + HM_BorderWidth;
		}
        if(!this.tree.PositionUnder) this.child.keepInWindow();
		this.child.moveTo(this.child.xPos,this.child.yPos);
        this.menu.hasChildVisible = true;
        this.menu.visibleChild = this.child;
        this.child.showIt(true);
    }
}

function HM_f_ItemOut() {
    if ( (!HM_KeepHilite || ((this.tree.TopIsPermanent && (this.tree.treeParent==this)) && !this.menu.hasChildVisible)) && this.hasRollover) {
		with(this){
			bgColor = this.tree.BGColor;
			if(this.tree.NSFontOver) {
				txtLyrOff.visibility = "inherit";
				txtLyrOn.visibility = "hide";
			}
		}
    }
	if(!HM_ClickKill && !HM_UserOverMenu) {
        HM_HideAllTimer = setTimeout("HM_CurrentMenu.hideTree()",10);  
    }
}

function HM_f_ShowIt(on) {
	if (!(this.tree.TopIsPermanent && (this.tree.treeParent==this))) {
		if(!this.hasParent || (this.hasParent && this.tree.TopIsPermanent)) {
			if (on == this.hidden)
				eval(on ? this.tree.UponDisplay : this.tree.UponHide)
		}
		this.visibility = on ? "show" : "hide";
	}
    if (HM_KeepHilite && this.currentItem && this.currentItem.hasRollover) {
        with(this.currentItem){
			bgColor = this.tree.BGColor;
			if(this.tree.NSFontOver) {
				txtLyrOff.visibility = "inherit";
				txtLyrOn.visibility = "hide";
			}
		}
	}
    this.currentItem = null;
}

function HM_f_KeepInWindow() {
    var ExtraSpace     = 10;
	var WindowLeftEdge = window.pageXOffset;
	var WindowTopEdge  = window.pageYOffset;
	var WindowWidth    = window.innerWidth;
	var WindowHeight   = window.innerHeight;
	var WindowRightEdge  = (WindowLeftEdge + WindowWidth) - ExtraSpace;
	var WindowBottomEdge = (WindowTopEdge + WindowHeight) - ExtraSpace;

	var MenuLeftEdge = this.xPos;
	var MenuRightEdge = MenuLeftEdge + this.clip.width;
	var MenuBottomEdge = this.yPos + this.clip.height;

	if (this.hasParent) {
		var ParentLeftEdge = this.parentMenu.pageX;
		this.offsetWidth = this.clip.width;
	}
	if (MenuRightEdge > WindowRightEdge) {
		if (this.hasParent) {
			this.xPos = ParentLeftEdge + this.tree.HorizOffsetRight - this.offsetWidth;	
		}
		else {
			dif = MenuRightEdge - WindowRightEdge;
			this.xPos -= dif;
		}
	}

	if (MenuBottomEdge > WindowBottomEdge) {
		dif = MenuBottomEdge - WindowBottomEdge;
		this.yPos -= dif;
	}

	if (MenuLeftEdge < WindowLeftEdge) {
		if (this.hasParent) {
			this.xPos = ParentLeftEdge + this.tree.HorizOffsetLeft;
		}
		else {this.xPos = 5}
	}       
}

function HM_f_LinkIt() {
	HM_f_HideAll();
    if (this.linkText.indexOf("javascript")!=-1) eval(this.linkText)
    else location.href = this.linkText;
}

function HM_f_PopDown(menuname){
    if (!HM_AreLoaded || !HM_AreCreated) return;
	menuname = menuname.replace("elMenu",HM_MenuIDPrefix);
    var MenuToHide = eval("window."+menuname);//document.layers[menuname];
	if(!MenuToHide)return;
    MenuToHide.isOn = false;
    if (!HM_ClickKill) MenuToHide.hideTop();
}

function HM_f_HideAll(callingmenu) {
	for(var i=0; i<HM_TotalTrees; i++) {
        var TopMenu = HM_a_TopMenus[i].tree.startChild;
		if(TopMenu == callingmenu)continue
        TopMenu.isOn = false;
        if (TopMenu.hasChildVisible) TopMenu.hideChildren();
        TopMenu.showIt(false);
    }    
}

function HM_f_HideTree() { 
    HM_HideAllTimer = null;
    if (HM_UserOverMenu) return;
    if (this.hasChildVisible) this.hideChildren();
    this.hideParents();
}

function HM_f_HideTop() {
	TopMenuToHide = this;
    (HM_ClickKill) ? TopMenuToHide.hideSelf() : (this.hideTimer = setTimeout("TopMenuToHide.hideSelf()",HM_TopMilliSecondsVisible));
}

function HM_f_HideSelf() {
    this.hideTimer = null;
    if (!this.isOn && !HM_UserOverMenu) this.showIt(false);
}

function HM_f_HideParents() {
    var TempMenu = this;
    while(TempMenu.hasParent) {
        TempMenu.showIt(false);
        TempMenu.parentMenu.isOn = false;        
        TempMenu = TempMenu.parentMenu;
    }
    TempMenu.hideTop();
}

function HM_f_HideChildren(callingitem) {
    var TempMenu = this.visibleChild;
    while(TempMenu.hasChildVisible) {
        TempMenu.visibleChild.showIt(false);
        TempMenu.hasChildVisible = false;
        TempMenu = TempMenu.visibleChild;
    }

    if (!this.isOn || !callingitem.hasMore || this.visibleChild != this.child) {
        this.visibleChild.showIt(false);
        this.hasChildVisible = false;
    }
}

function HM_f_PageClick() {
    if (!HM_UserOverMenu && HM_CurrentMenu!=null && !HM_CurrentMenu.isOn) HM_f_HideAll();
}

popUp = HM_f_PopUp;
popDown = HM_f_PopDown;

HM_f_OtherOnLoad = (window.onload) ? window.onload :  new Function;
window.onload = HM_f_StartIt;


//end