DHTML Lab: Hierarchical Menus Version 3; The Complete Code 3/3
Hierarchical Menus Version 3
SPECIAL EDITION; the director's cut 3/3
Hierarchical Menus, Version 3: Main Script (hierMenus.js)
/*hierMenus.js - Cross-Browser/Full-Window/Frames * by Peter Belesis. v3.0 980903 * Copyright (c) 2001 Peter Belesis. All Rights Reserved. * Originally published and documented at https://www.dhtmlab.com/ * Available solely from INT Media Group. Incorporated under exclusive license. * Contact [email protected] for more information. */ loader = (isFrames) ? (NS4) ? parent : parent.document.body : window; loader.onload = startIt; isLoaded = false; NSresized = false; if (!window.menuVersion) { clickKill = showVisited = NSfontOver = keepHilite = clickStart = false; } mSecsVis = secondsVisible*1000; isRight = (window.navFrLoc && navFrLoc == "right"); imgSuf = (isRight) ? ">" : "ALIGN=RIGHT>"; imgStr = "<IMG SRC=" + imgSrc + " WIDTH=" + imgSiz + " HEIGHT=" + imgSiz +" BORDER=0 VSPACE=2 " + imgSuf; spStr = (isRight && NS4) ? "<SPACER TYPE=HORIZONTAL SIZE="+imgSiz+">" : ""; areCreated = false; menuLoc = null; function initVars() { if(areCreated) { for(i=1; i<topCount; i++) { cur = eval("elMenu"+i); clearTimeout(cur.hideTimer); cur.hideTimer=null; } clearTimeout(allTimer); } topCount = 1; areCreated = false; beingCreated = false; isOverMenu = false; currentMenu = null; allTimer = null; } initVars(); function NSunloaded(){ isLoaded = false; } function NSloaded(e){ if (e.target.name == mainFrName) { initVars(); startIt(); } } function IEunloaded() { initVars(); isLoaded = false; setTimeout("keepTrack()",50) } function keepTrack() { if (menuLoc.document.readyState == "complete") { initVars(); startIt(); } else { setTimeout("keepTrack()",50); } } function startIt() { isLoaded = true; if (isFrames) { menuLoc = eval("parent.frames." + mainFrName); if (NS4) { loader.captureEvents(Event.LOAD); loader.onload = NSloaded; menuLoc.onunload = NSunloaded; } if (IE4) { menuLoc.document.body.onunload = IEunloaded; } } else { menuLoc = window; } menuLoc.nav = nav = window; if (clickKill) { if (NS4) menuLoc.document.captureEvents(Event.MOUSEDOWN); menuLoc.document.onmousedown = clicked; } if (NS4) setTimeout("loader.onresize=reDo",2000); makeTop(); } function makeTop(){ beingCreated = true; while(eval("window.arMenu" + topCount)) { (NS4) ? makeMenuNS(false,topCount) : makeMenuIE(false,topCount); topCount++ } status = (topCount-1) + " Hierarchical Menu Trees Created" areCreated = true; beingCreated = false; } function makeMenuNS(isChild,menuCount,parMenu,parItem) { tempArray = eval("arMenu" + menuCount); if (!isChild) { tempWidth = tempArray[0] ? tempArray[0] : menuWidth; menu = makeElement("elMenu" + menuCount,tempWidth); } else { menu = makeElement("elMenu" + menuCount,null,parMenu); } menu.array = tempArray; menu.setMenuTree = setMenuTree; menu.setMenuTree(isChild,parMenu); while (menu.itemCount < menu.maxItems) { menu.itemCount++; status = "Creating Hierarchical Menus: " + menuCount + " / " + menu.itemCount; prevItem = (menu.itemCount > 1) ? menu.item : null; itemName = "item" + menuCount + "_" + menu.itemCount; menu.item = makeElement(itemName,null,null,menu); menu.item.prevItem = prevItem; menu.item.setup = itemSetup; menu.item.setup(menu.itemCount,menu.array); if (menu.item.hasMore) { makeMenuNS(true,menuCount + "_" + menu.itemCount,menu,menu.item); menu = menu.parentMenu; } } menu.lastItem = menu.item; menu.setup(isChild,parMenu,parItem); } function setMenuTree(isChild,parMenu) { if (!isChild) { this.menuWidth = this.array[0] ? this.array[0] : menuWidth; this.menuLeft = this.array[1]; this.menuTop = this.array[2]; this.menuFontColor = this.array[3] ? this.array[3] : fntCol; this.menuFontOver = this.array[4] ? this.array[4] : overFnt; this.menuBGColor = this.array[5] ? this.array[5] : backCol; this.menuBGOver = this.array[6] ? this.array[6] : overCol; this.menuBorCol = this.array[7] ? this.array[7] : borCol; this.menuSeparatorCol = this.array[8] ? this.array[8] : separatorCol; this.treeParent = this; this.startChild = this; } else { this.menuWidth = parMenu.menuWidth; this.menuLeft = parMenu.menuLeft; this.menuTop = parMenu.menuTop; this.menuFontColor = parMenu.menuFontColor; this.menuFontOver = parMenu.menuFontOver; this.menuBGColor = parMenu.menuBGColor; this.menuBGOver = parMenu.menuBGOver; this.menuBorCol = parMenu.menuBorCol; this.menuSeparatorCol = parMenu.menuSeparatorCol; this.treeParent = parMenu.treeParent; } this.maxItems = (isChild) ? this.array.length/3 : (this.array.length-9)/3; this.hasParent = isChild; this.setup = menuSetup; this.itemCount = 0; } function makeMenuIE(isChild,menuCount,parMenu) { menu = makeElement("elMenu" + menuCount); menu.array = eval("arMenu" + menuCount); menu.setMenuTree = setMenuTree; menu.setMenuTree(isChild,parMenu); menu.itemStr = ""; while (menu.itemCount < menu.maxItems) { menu.itemCount++; status = "Creating Hierarchical Menus: " + menuCount + " / " + menu.itemCount; itemName = "item" + menuCount + "_" + menu.itemCount; arrayPointer = (isChild) ? (menu.itemCount-1)*3 :((menu.itemCount-1)*3)+9; dispText = menu.array[arrayPointer]; hasMore = menu.array[arrayPointer + 2]; htmStr = (hasMore) ? imgStr + dispText : dispText; menu.itemStr += "<SPAN ID=" + itemName + " STYLE=\"width:" + menu.menuWidth + "\">" + htmStr + "</SPAN><BR>"; if (hasMore) { makeMenuIE(true,menuCount + "_" + menu.itemCount,menu); menu = menu.parentMenu; } } menu.innerHTML = menu.itemStr; itemColl = menu.children.tags("SPAN"); for (i=0; i<itemColl.length; i++) { it = itemColl(i); it.setup = itemSetup; it.setup(i+1,menu.array); } menu.lastItem = itemColl(itemColl.length-1); menu.setup(isChild,parMenu); } function makeElement(whichEl,whichWidth,whichParent,whichContainer) { if (NS4) { if (whichWidth) { elWidth = whichWidth; } else { elWidth = (whichContainer) ? whichContainer.menuWidth : whichParent.menuWidth; if (whichContainer) elWidth = elWidth-(borWid*2)-(itemPad*2); } if (!whichContainer) whichContainer = menuLoc; eval(whichEl + "= new Layer(elWidth,whichContainer)"); } else { elStr = "<DIV ID=" + whichEl + " STYLE='position:absolute'></DIV>"; menuLoc.document.body.insertAdjacentHTML("BeforeEnd",elStr); if (isFrames) eval(whichEl + "= menuLoc." + whichEl); } return eval(whichEl); } function itemSetup(whichItem,whichArray) { this.onmouseover = itemOver; this.onmouseout = itemOut; this.container = (NS4) ? this.parentLayer : this.offsetParent; arrayPointer = (this.container.hasParent) ? (whichItem-1)*3 : ((whichItem-1)*3)+9; this.dispText = whichArray[arrayPointer]; this.linkText = whichArray[arrayPointer + 1]; this.hasMore = whichArray[arrayPointer + 2]; if (IE4 && this.hasMore) { this.child = eval("elMenu" + this.id.substr(this.id.indexOf("_")-1)); this.child.parentMenu = this.container; this.child.parentItem = this; } if (this.linkText) { if (NS4) { this.captureEvents(Event.MOUSEUP) this.onmouseup = linkIt; } else { this.onclick = linkIt; this.style.cursor = "hand"; } } if (NS4) { htmStr = this.dispText; this.document.tags.A.textDecoration = "none"; if (fntBold) htmStr = htmStr.bold(); if (fntItal) htmStr = htmStr.italics(); htmStr = "<FONT FACE=" + fntFam + " POINT-SIZE=" + fntSiz + ">" + htmStr+ "</FONT>"; if (this.linkText) { with (this.document) { linkColor = this.container.menuFontColor; alinkColor = this.container.menuFontColor; vlinkColor = (showVisited) ? showVisited : this.container.menuFontColor; } htmStrOver = htmStr.fontcolor(this.container.menuFontOver).link(this.linkText); htmStr = htmStr.link(this.linkText); } else { htmStrOver = htmStr.fontcolor(this.container.menuFontOver); htmStr = htmStr.fontcolor(this.container.menuFontColor); } this.htmStr = (this.hasMore) ? imgStr + htmStr : spStr + htmStr; this.htmStrOver = (this.hasMore) ? imgStr + htmStrOver : spStr + htmStrOver; this.document.write(this.htmStr); this.document.close(); this.visibility = "inherit"; this.bgColor = this.container.menuBGColor; if (whichItem == 1) { this.top = borWid + itemPad; } else { this.top = this.prevItem.top + this.prevItem.clip.height + separator; } this.left = borWid + itemPad; this.clip.top = this.clip.left = -itemPad; this.clip.bottom += itemPad; this.clip.right = this.container.menuWidth-(borWid*2)-itemPad; } else { with (this.style) { padding = itemPad; if (isRight && !this.hasMore) paddingLeft = parseInt(padding)+imgSiz; color = this.container.menuFontColor; fontSize = fntSiz + "pt"; fontWeight = (fntBold) ? "bold" : "normal"; fontStyle = (fntItal) ? "italic" : "normal"; fontFamily = fntFam; borderBottomWidth = separator + "px"; borderBottomColor = this.container.menuSeparatorCol; borderBottomStyle = "solid"; backgroundColor = this.container.menuBGColor; } } } function menuSetup(hasParent,openCont,openItem) { this.onmouseover = menuOver; this.onmouseout = menuOut; this.showIt = showIt; this.keepInWindow = keepInWindow; this.hideTree = hideTree this.hideParents = hideParents; this.hideChildren = hideChildren; this.hideTop = hideTop; this.hasChildVisible = false; this.isOn = false; this.hideTimer = null; this.childOverlap = (perCentOver != null) ? ((perCentOver/100) * this.menuWidth) : childOverlap; this.currentItem = null; this.hideSelf = hideSelf; if (hasParent) { this.hasParent = true; this.parentMenu = openCont; if (NS4) { this.parentItem = openItem; this.parentItem.child = this; } } else { this.hasParent = false; } if (NS4) { this.bgColor = this.menuBorCol; this.fullHeight = this.lastItem.top + this.lastItem.clip.bottom + borWid; this.clip.right = this.menuWidth; this.clip.bottom = this.fullHeight; } else { with (this.style) { width = this.menuWidth; borderWidth = borWid; borderColor = this.menuBorCol; borderStyle = borSty; } this.lastItem.style.border=""; this.fullHeight = this.scrollHeight; this.showIt(false); this.onselectstart = cancelSelect; this.moveTo = moveTo; this.moveTo(0,0); } } function popUp(menuName,e){ if (NS4 && NSresized) startIt(); if (!isLoaded) return; linkEl = (NS4) ? e.target : event.srcElement; if (clickStart) linkEl.onclick = popMenu; if (!beingCreated && !areCreated) startIt(); linkEl.menuName = menuName; if (!clickStart) popMenu(e); } function popMenu(e){ if (!isLoaded || !areCreated) return true; eType = (NS4) ? e.type : event.type; if (clickStart && eType != "click") return true; hideAll(); linkEl = (NS4) ? e.target : event.srcElement; currentMenu = eval(linkEl.menuName); currentMenu.hasParent = false; currentMenu.treeParent.startChild = currentMenu; if (IE4) menuLocBod = menuLoc.document.body; if (!isFrames) { xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? e.pageX : (event.clientX + menuLocBod.scrollLeft); yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? e.pageY : (event.clientY + menuLocBod.scrollTop); } else { switch (navFrLoc) { case "left": xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? menuLoc.pageXOffset : menuLocBod.scrollLeft; yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? (e.pageY-pageYOffset)+menuLoc.pageYOffset : event.clientY + menuLocBod.scrollTop; break; case "top": xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? (e.pageX-pageXOffset)+menuLoc.pageXOffset : event.clientX + menuLocBod.scrollLeft; yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? menuLoc.pageYOffset : menuLocBod.scrollTop; break; case "bottom": xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? (e.pageX-pageXOffset)+menuLoc.pageXOffset : event.clientX + menuLocBod.scrollLeft; yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? menuLoc.pageYOffset+menuLoc.innerHeight : menuLocBod.scrollTop + menuLocBod.clientHeight; break; case "right": xPos = (currentMenu.menuLeft) ? currentMenu.menuLeft : (NS4) ? menuLoc.pageXOffset+menuLoc.innerWidth : menuLocBod.scrollLeft+menuLocBod.clientWidth; yPos = (currentMenu.menuTop) ? currentMenu.menuTop : (NS4) ? (e.pageY-pageYOffset)+menuLoc.pageYOffset : event.clientY + menuLocBod.scrollTop; break; } } currentMenu.moveTo(xPos,yPos); currentMenu.keepInWindow() currentMenu.isOn = true; currentMenu.showIt(true); return false; } function menuOver() { this.isOn = true; isOverMenu = true; currentMenu = this; if (this.hideTimer) clearTimeout(this.hideTimer); } function menuOut() { if (IE4) { theEvent = menuLoc.event; if (theEvent.srcElement.contains(theEvent.toElement)) return; } this.isOn = false; isOverMenu = false; if (!clickKill) allTimer = setTimeout("currentMenu.hideTree()",10); } function itemOver(){ if (keepHilite) { if (this.container.currentItem && this.container.currentItem != this) { if (NS4) { this.container.currentItem.bgColor = this.container.menuBGColor; if (NSfontOver) { with (this.container.currentItem.document) { linkColor = this.container.menuFontColor; write(this.container.currentItem.htmStr) close(); } } } else { with (this.container.currentItem.style) { backgroundColor = this.container.menuBGColor; color = this.container.menuFontColor; } } } } if (IE4) { theEvent = menuLoc.event; if (theEvent.srcElement.tagName == "IMG") return; this.style.backgroundColor = this.container.menuBGOver; this.style.color = this.container.menuFontOver; } else { this.bgColor = this.container.menuBGOver; if (NSfontOver) { this.document.write(this.htmStrOver); this.document.close(); } } this.container.currentItem = this; if (this.container.hasChildVisible) { this.container.hideChildren(this); } if (this.hasMore) { horOffset = (isRight) ? (this.container.childOverlap - this.container.menuWidth) : (this.container.menuWidth - this.container.childOverlap); if (NS4) { this.childX = this.container.left + horOffset; this.childY = this.pageY + childOffset; } else { this.childX = this.container.style.pixelLeft + horOffset; this.childY = this.offsetTop + this.container.style.pixelTop + childOffset; } this.child.moveTo(this.childX,this.childY); this.child.keepInWindow(); this.container.hasChildVisible = true; this.container.visibleChild = this.child; this.child.showIt(true); } } function itemOut() { if (IE4) { theEvent = menuLoc.event; if (theEvent.srcElement.contains(theEvent.toElement) || (theEvent.fromElement.tagName=="IMG" && theEvent.toElement.contains(theEvent.fromElement))) return; if (!keepHilite) { this.style.backgroundColor = this.container.menuBGColor; this.style.color = this.container.menuFontColor; } } else { if (!keepHilite) { this.bgColor = this.container.menuBGColor; if (NSfontOver) { with (this.document) { linkColor = this.container.menuFontColor; write(this.htmStr); close(); } } } if (!isOverMenu && !clickKill) { allTimer = setTimeout("currentMenu.hideTree()",10); } } } function moveTo(xPos,yPos) { this.style.pixelLeft = xPos; this.style.pixelTop = yPos; } function showIt(on) { if (NS4) { this.visibility = (on) ? "show" : "hide"; if (keepHilite && this.currentItem) { this.currentItem.bgColor = this.menuBGColor; if (NSfontOver) { with (this.currentItem.document) { write(this.currentItem.htmStr); close(); } } } } else { this.style.visibility = (on) ? "visible" : "hidden"; if (keepHilite && this.currentItem) { with (this.currentItem.style) { backgroundColor = this.menuBGColor; color = this.menuFontColor; } } } this.currentItem = null; } function keepInWindow() { scrBars = 20; botScrBar = (isFrames && navFrLoc=="bottom") ? (borWid*2) : scrBars; rtScrBar = (isFrames && navFrLoc=="right") ? (borWid*2) : scrBars; if (NS4) { winRight = (menuLoc.pageXOffset + menuLoc.innerWidth) - rtScrBar; rightPos = this.left + this.menuWidth; if (rightPos > winRight) { if (this.hasParent) { parentLeft = this.parentMenu.left; newLeft = ((parentLeft-this.menuWidth) + this.childOverlap); this.left = newLeft; } else { dif = rightPos - winRight; this.left -= dif; } } winBot = (menuLoc.pageYOffset + menuLoc.innerHeight) - botScrBar ; botPos = this.top + this.fullHeight; if (botPos > winBot) { dif = botPos - winBot; this.top -= dif; } winLeft = menuLoc.pageXOffset; leftPos = this.left; if (leftPos < winLeft) { if (this.hasParent) { parentLeft = this.parentMenu.left; newLeft = ((parentLeft+this.menuWidth) - this.childOverlap); this.left = newLeft; } else { this.left = 5; } } } else { winRight = (menuLoc.document.body.scrollLeft + menuLoc.document.body.clientWidth) - rtScrBar; rightPos = this.style.pixelLeft + this.menuWidth; if (rightPos > winRight) { if (this.hasParent) { parentLeft = this.parentMenu.style.pixelLeft; newLeft = ((parentLeft - this.menuWidth) + this.childOverlap); this.style.pixelLeft = newLeft; } else { dif = rightPos - winRight; this.style.pixelLeft -= dif; } } winBot = (menuLoc.document.body.scrollTop + menuLoc.document.body.clientHeight) - botScrBar; botPos = this.style.pixelTop + this.fullHeight; if (botPos > winBot) { dif = botPos - winBot; this.style.pixelTop -= dif; } winLeft = menuLoc.document.body.scrollLeft; leftPos = this.style.pixelLeft; if (leftPos < winLeft) { if (this.hasParent) { parentLeft = this.parentMenu.style.pixelLeft; newLeft = ((parentLeft+this.menuWidth) - this.childOverlap); this.style.pixelLeft = newLeft; } else { this.style.pixelLeft = 5; } } } } function linkIt() { if (this.linkText.indexOf("javascript")!=-1){eval(this.linkText);return} menuLoc.location.href = this.linkText; } function popDown(menuName){ if (!isLoaded || !areCreated) return; whichEl = eval(menuName); whichEl.isOn = false; if (!clickKill) whichEl.hideTop(); } function hideAll() { for(i=1; i<topCount; i++) { temp = eval("elMenu" + i + ".startChild"); temp.isOn = false; if (temp.hasChildVisible) temp.hideChildren(); temp.showIt(false); } } function hideTree() { allTimer = null; if (isOverMenu) return; if (this.hasChildVisible) { this.hideChildren(); } this.hideParents(); } function hideTop() { whichEl = this; (clickKill) ? whichEl.hideSelf() : (this.hideTimer = setTimeout("whichEl.hideSelf()",mSecsVis)); } function hideSelf() { this.hideTimer = null; if (!this.isOn && !isOverMenu) { this.showIt(false); } } function hideParents() { tempMenu = this; while (tempMenu.hasParent) { tempMenu.showIt(false); tempMenu.parentMenu.isOn = false; tempMenu = tempMenu.parentMenu; } tempMenu.hideTop(); } function hideChildren(item) { tempMenu = this.visibleChild; while (tempMenu.hasChildVisible) { tempMenu.visibleChild.showIt(false); tempMenu.hasChildVisible = false; tempMenu = tempMenu.visibleChild; } if (!this.isOn || !item.hasMore || this.visibleChild != this.child) { this.visibleChild.showIt(false); this.hasChildVisible = false; } } function cancelSelect(){return false} function reDo(){ initVars(); NSresized=true; menuLoc.location.reload(); } function clicked() { if (!isOverMenu && currentMenu!=null && !currentMenu.isOn) { whichEl = currentMenu; whichEl.hideTree(); } } window.onerror = handleErr; function handleErr(){ arAccessErrors = ["permission","access"]; mess = arguments[0].toLowerCase(); found = false; for (i=0;i<arAccessErrors.length;i++) { errStr = arAccessErrors[i]; if (mess.indexOf(errStr)!=-1) found = true; } return found; } /******* end *******/
Produced by Peter Belesis and
All Rights Reserved. Legal Notices.Created: Sept. 03, 1998
Revised: Sept. 03, 1998
URL: https://www.webreference.com/dhtml/column21/allCode3.html