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  • Convert flyout menu to respond onclick vs mouseover

    - by Scott B
    The code below creates a nifty flyout menu action on a nested list item sequence. The client has called and wants the change the default behavior in which the flyouts are triggered by mouseover, so that you have to click to trigger a flyout. Ideally, I would just like to modify this code so that you click on a small icon (plus/minus) that sits to the right of the menu item if it has child menus. Can someone give me a bit of guidance on what bits I'd need to change to accomplish this? /* a few sniffs to circumvent known browser bugs */ var sUserAgent = navigator.userAgent.toLowerCase(); var isIE=document.all?true:false; var isNS4=document.layers?true:false; var isOp=(sUserAgent.indexOf('opera')!=-1)?true:false; var isMac=(sUserAgent.indexOf('mac')!=-1)?true:false; var isMoz=(sUserAgent.indexOf('mozilla/5')!=-1&&sUserAgent.indexOf('opera')==-1&&sUserAgent.indexOf('msie')==-1)?true:false; var isNS6=(sUserAgent.indexOf('netscape6')!=-1&&sUserAgent.indexOf('opera')==-1&&sUserAgent.indexOf('msie')==-1)?true:false; var dom=document.getElementById?true:false; /* sets time until menus disappear in milliseconds */ var iMenuTimeout=1500; var aMenus=new Array; var oMenuTimeout; var iMainMenusLength=0; /* the following boolean controls the z-index property if needed */ /* if is only necessary if you have multiple mainMenus in one file that are overlapping */ /* set bSetZIndeces to true (either here or in the HTML) and the main menus will have a z-index set in descending order so that preceding ones can overlap */ /* the integer iStartZIndexAt controls z-index of the first main menu */ var bSetZIndeces=true; var iStartZIndexAt=1000; var aMainMenus=new Array; /* load up the submenus */ function loadMenus(){ if(!dom)return; var aLists=document.getElementsByTagName('ul'); for(var i=0;i<aLists.length;i++){ if(aLists[i].className=='navMenu')aMenus[aMenus.length]=aLists[i]; } var aAnchors=document.getElementsByTagName('a'); var aItems = new Array; for(var i=0;i<aAnchors.length;i++){ // if(aAnchors[i].className=='navItem')aItems[aItems.length] = aAnchors[i]; aItems[aItems.length] = aAnchors[i]; } var sMenuId=null; var oParentMenu=null; var aAllElements=document.body.getElementsByTagName("*"); if(isIE)aAllElements=document.body.all; /* loop through navItem and navMenus and dynamically assign their IDs */ /* each relies on it's parent's ID being set before it */ for(var i=0;i<aAllElements.length;i++){ if(aAllElements[i].className.indexOf('x8menus')!=-1){ /* load up main menus collection */ if(bSetZIndeces)aMainMenus[aMainMenus.length]=aAllElements[i]; } // if(aAllElements[i].className=='navItem'){ if(aAllElements[i].tagName=='A'){ oParentMenu = aAllElements[i].parentNode.parentNode; if(!oParentMenu.childMenus) oParentMenu.childMenus = new Array; oParentMenu.childMenus[oParentMenu.childMenus.length]=aAllElements[i]; if(aAllElements[i].id==''){ if(oParentMenu.className=='x8menus'){ aAllElements[i].id='navItem_'+iMainMenusLength; //alert(aAllElements[i].id); iMainMenusLength++; }else{ aAllElements[i].id=oParentMenu.id.replace('Menu','Item')+'.'+oParentMenu.childMenus.length; } } } else if(aAllElements[i].className=='navMenu'){ oParentItem = aAllElements[i].parentNode.firstChild; aAllElements[i].id = oParentItem.id.replace('Item','Menu'); } } /* dynamically set z-indeces of main menus so they won't underlap */ for(var i=aMainMenus.length-1;i>=0;i--){ aMainMenus[i].style.zIndex=iStartZIndexAt-i; } /* set menu item properties */ for(var i=0;i<aItems.length;i++){ sMenuId=aItems[i].id; sMenuId='navMenu_'+sMenuId.substring(8,sMenuId.lastIndexOf('.')); /* assign event handlers */ /* eval() used here to avoid syntax errors for function literals in Netscape 3 */ eval('aItems[i].onmouseover=function(){modClass(true,this,"activeItem");window.clearTimeout(oMenuTimeout);showMenu("'+sMenuId+'");};'); eval('aItems[i].onmouseout=function(){modClass(false,this,"activeItem");window.clearTimeout(oMenuTimeout);oMenuTimeout=window.setTimeout("hideMenu(\'all\')",iMenuTimeout);}'); eval('aItems[i].onfocus=function(){this.onmouseover();}'); eval('aItems[i].onblur=function(){this.onmouseout();}'); //aItems[i].addEventListener("keydown",function(){keyNav(this,event);},false); } var sCatId=0; var oItem; for(var i=0;i<aMenus.length;i++){ /* assign event handlers */ /* eval() used here to avoid syntax errors for function literals in Netscape 3 */ eval('aMenus[i].onmouseover=function(){window.clearTimeout(oMenuTimeout);}'); eval('aMenus[i].onmouseout=function(){window.clearTimeout(oMenuTimeout);oMenuTimeout=window.setTimeout("hideMenu(\'all\')",iMenuTimeout);}'); sCatId=aMenus[i].id; sCatId=sCatId.substring(8,sCatId.length); oItem=document.getElementById('navItem_'+sCatId); if(oItem){ if(!isOp && !(isMac && isIE) && oItem.parentNode)modClass(true,oItem.parentNode,"hasSubMenu"); else modClass(true,oItem,"hasSubMenu"); /* assign event handlers */ eval('oItem.onmouseover=function(){window.clearTimeout(oMenuTimeout);showMenu("navMenu_'+sCatId+'");}'); eval('oItem.onmouseout=function(){window.clearTimeout(oMenuTimeout);oMenuTimeout=window.clearTimeout(oMenuTimeout);oMenuTimeout=window.setTimeout(\'hideMenu("navMenu_'+sCatId+'")\',iMenuTimeout);}'); eval('oItem.onfocus=function(){window.clearTimeout(oMenuTimeout);showMenu("navMenu_'+sCatId+'");}'); eval('oItem.onblur=function(){window.clearTimeout(oMenuTimeout);oMenuTimeout=window.clearTimeout(oMenuTimeout);oMenuTimeout=window.setTimeout(\'hideMenu("navMenu_'+sCatId+'")\',iMenuTimeout);}'); //oItem.addEventListener("keydown",function(){keyNav(this,event);},false); } } } /* this will append the loadMenus function to any previously assigned window.onload event */ /* if you reassign this onload event, you'll need to include this or execute it after all the menus are loaded */ function newOnload(){ if(typeof previousOnload=='function')previousOnload(); loadMenus(); } var previousOnload; if(window.onload!=null)previousOnload=window.onload; window.onload=newOnload; /* show menu and hide all others except ancestors of the current menu */ function showMenu(sWhich){ var oWhich=document.getElementById(sWhich); if(!oWhich){ hideMenu('all'); return; } var aRootMenus=new Array; aRootMenus[0]=sWhich var sCurrentRoot=sWhich; var bHasParentMenu=false; if(sCurrentRoot.indexOf('.')!=-1){ bHasParentMenu=true; } /* make array of this menu and ancestors so we know which to leave exposed */ /* ex. from ID string "navMenu_12.3.7.4", extracts menu levels ["12.3.7.4", "12.3.7", "12.3", "12"] */ while(bHasParentMenu){ if(sCurrentRoot.indexOf('.')==-1)bHasParentMenu=false; aRootMenus[aRootMenus.length]=sCurrentRoot; sCurrentRoot=sCurrentRoot.substring(0,sCurrentRoot.lastIndexOf('.')); } for(var i=0;i<aMenus.length;i++){ var bIsRoot=false; for(var j=0;j<aRootMenus.length;j++){ var oThisItem=document.getElementById(aMenus[i].id.replace('navMenu_','navItem_')); if(aMenus[i].id==aRootMenus[j])bIsRoot=true; } if(bIsRoot && oThisItem)modClass(true,oThisItem,'hasSubMenuActive'); else modClass(false,oThisItem,'hasSubMenuActive'); if(!bIsRoot && aMenus[i].id!=sWhich)modClass(false,aMenus[i],'showMenu'); } modClass(true,oWhich,'showMenu'); var oItem=document.getElementById(sWhich.replace('navMenu_','navItem_')); if(oItem)modClass(true,oItem,'hasSubMenuActive'); } function hideMenu(sWhich){ if(sWhich=='all'){ /* loop backwards b/c WinIE6 has a bug with hiding display of an element when it's parent is already hidden */ for(var i=aMenus.length-1;i>=0;i--){ var oThisItem=document.getElementById(aMenus[i].id.replace('navMenu_','navItem_')); if(oThisItem)modClass(false,oThisItem,'hasSubMenuActive'); modClass(false,aMenus[i],'showMenu'); } }else{ var oWhich=document.getElementById(sWhich); if(oWhich)modClass(false,oWhich,'showMenu'); var oThisItem=document.getElementById(sWhich.replace('navMenu_','navItem_')); if(oThisItem)modClass(false,oThisItem,'hasSubMenuActive'); } } /* add or remove element className */ function modClass(bAdd,oElement,sClassName){ if(bAdd){/* add class */ if(oElement.className.indexOf(sClassName)==-1)oElement.className+=' '+sClassName; }else{/* remove class */ if(oElement.className.indexOf(sClassName)!=-1){ if(oElement.className.indexOf(' '+sClassName)!=-1)oElement.className=oElement.className.replace(' '+sClassName,''); else oElement.className=oElement.className.replace(sClassName,''); } } return oElement.className; /* return new className */ } //document.body.addEventListener("keydown",function(){keyNav(event);},true); function setBubble(oEvent){ oEvent.bubbles = true; } function keyNav(oElement,oEvent){ alert(oEvent.keyCode); window.status=oEvent.keyCode; return false; }

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  • TDD vs. Unit testing

    - by Walter
    My company is fairly new to unit testing our code. I've been reading about TDD and unit testing for some time and am convinced of their value. I've attempted to convince our team that TDD is worth the effort of learning and changing our mindsets on how we program but it is a struggle. Which brings me to my question(s). There are many in the TDD community who are very religious about writing the test and then the code (and I'm with them), but for a team that is struggling with TDD does a compromise still bring added benefits? I can probably succeed in getting the team to write unit tests once the code is written (perhaps as a requirement for checking in code) and my assumption is that there is still value in writing those unit tests. What's the best way to bring a struggling team into TDD? And failing that is it still worth writing unit tests even if it is after the code is written? EDIT What I've taken away from this is that it is important for us to start unit testing, somewhere in the coding process. For those in the team who pickup the concept, start to move more towards TDD and testing first. Thanks for everyone's input. FOLLOW UP We recently started a new small project and a small portion of the team used TDD, the rest wrote unit tests after the code. After we wrapped up the coding portion of the project, those writing unit tests after the code were surprised to see the TDD coders already done and with more solid code. It was a good way to win over the skeptics. We still have a lot of growing pains ahead, but the battle of wills appears to be over. Thanks for everyone who offered advice!

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  • TimeZoneInfo vs. Olson database

    - by Idsa
    Do TimeZoneInfo and Olson database use identical identificators for time zones? I get timezone id from GeoNames service (which is based on Olson database) and want to retrieve day light saving information for that timezone.

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  • Recursive languages vs context-sensitive languages

    - by teehoo
    In Chomsky's hierarchy, the set of recursive languages is not defined. I know that recursive languages are a subset of recursively enumerable languages and that all recursive languages are decidable. What I'm curious about is how recursive languages compare to context-sensitive languages. Can I assume that context-sensitive languages are a strict subset of recursive languages, and therefore all context-sensitive languages are decidable?

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  • Core Data iPad/iPhone BLOBS vs File system for 20k PDFs

    - by jamone
    I'm designing an iPad/iPhone app using core data. The main focus of the app is sorting and viewing up to 20,000 PDFs They are ~200KB each. Typically its best to not store BLOBS in a DB, but for desktop systems I've typically seen it said that if the blobs are < 1 MB then its fine to use the DB. Any considerations I should take into count? If I store them in the file system can I store them all in one directory and not have performance issues (I won't need to ever get a directory list since I'd store each's path in the DB)? Should I divide them among a handful of directories? If so is there a good rule on # of files per dir?

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  • Proof of library bug vs developer side application bug

    - by Paralife
    I have a problem with a specific java client library. I wont say here the problem or the name of the library because my question is a different one. Here is the situation: I have made a program that uses the library. The program is a class named 'WorkerThread' that extends Thread. To start it I have made a Main class that only contains a main() function that starts the thread and nothing else. The worker uses the library to perform comm with a server and get results. The problem appears when I want to run 2 WorkerThreads simultaneously. What I first did was to do this in the Main class: public class Main { public static void main(String args[]) { new WorkerThread().start(); // 1st thread. new WorkerThread().start(); // 2nd thread. } } When I run this, both threads produce irrational results and what is more , some results that should be received by 1st thread are received by the 2nd instead. If instead of the above, I just run 2 separate processes of one thread each, then everything works fine. Also: 1.There is no static class or method used inside WorkerThread that could cause the problem. My application consists of only the worker thread class and contains no static fields or methods 2.The library is supposed to be usable in a multithreaded environment. In my thread I just create a new instance of a library's class and then call methods on it. Nothing more. My question is this: Without knowing any details of my implementation, is the above situation and facts enough to prove that there is a bug in the library and not in my programm? Is it safe to assume that the library inside uses a static method or object that is indirectly shared by my 2 threads and this causes the problem? If no then in what hypothetical situation could the bug originate in the worker class code?

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  • Pros and Cons of automating Excel using VBA vs .Net

    - by Andy
    I've been tasked with creating a financial planning tool in Excel that would benefit from some custom functions/macros. My initial reaction was to use VBA. I've used it to drive Excel before (say 5 years ago). But I then began to wonder if I would be better off using VSTO. Has anyone has experience using both techs and can list the pros and cons so that I can evaluate which course would be best.

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  • Covariance vs. contravariance

    - by alexmac
    What are the concepts of covariance and contravariance? Given 2 classes, Animal and Elephant (which inherits from Animal), my understanding is that you get runtime errors in .NET if you try and put an Elephant into an array of Animal, which happens because Elephant is "bigger" (more specific) than Animal. But could you assign Animal to an array of Elephants as Elephant is guaranteed to contain the Animal properties?

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  • JSP Custom Tag Library vs JSP2 Tag Files

    - by Vinayak.B
    Can anybody gimme the idea about the JSP custom tag library and the JSP 2 Tag files.. Are this two are alternatives to use....??? If there is any comparision(or merits and demerits) among this please do specify.. And which one of this is better to work with.. I m waiting for the kind suggestions.. Regards, Vinayak

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  • Data Transfer Objects VS Domain/ActiveRecord Entities in the View in RoR

    - by leypascua
    I'm coming from a .NET background, where it is a practice to not bind domain/entity models directly to the view in not-so-basic CRUD-ish applications where the view does not directly project entity fields as-is. I'm wondering what's the practice in RoR, where the default persistence mechanism is ActiveRecord. I would assert that presentation-related info should not be leaked to the entities, not sure though if this is how real RoR heads would do it. If DTOs/model per view is the approach, how will you do it in Rails? Your thoughts? EDIT: Some examples: - A view shows a list of invoices, with the number of unique items in one column. - A list of credit card accounts, where possibly fraudulent transactions were executed. For that, the UI needs to show this row in red. For both scenarios, The lists don't show all of the fields of the entities, just a few to show in the list (like invoice #, transaction date, name of the account, the amount of the transaction) For the invoice example, The invoice entity doesn't have a field "No. of line items" mapped on it. The database has not been denormalized for perf reasons and it will be computed during query time using aggregate functions. For the credit card accounts example, surely the card transaction entity doesn't have a "Show-in-red" or "IsFraudulent" invariant. Yes it may be a business rule, but for this example, that is a presentation concern, so I would like to keep it out of my domain model.

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  • GZIP Java vs .NET

    - by Jim Jones
    Using the following Java code to compress/decompress bytes[] to/from GZIP. First text bytes to gzip bytes: public static byte[] fromByteToGByte(byte[] bytes) { ByteArrayOutputStream baos = null; try { ByteArrayInputStream bais = new ByteArrayInputStream(bytes); baos = new ByteArrayOutputStream(); GZIPOutputStream gzos = new GZIPOutputStream(baos); byte[] buffer = new byte[1024]; int len; while((len = bais.read(buffer)) >= 0) { gzos.write(buffer, 0, len); } gzos.close(); baos.close(); } catch (IOException e) { e.printStackTrace(); } return(baos.toByteArray()); } Then the method that goes the other way compressed bytes to uncompressed bytes: public static byte[] fromGByteToByte(byte[] gbytes) { ByteArrayOutputStream baos = null; ByteArrayInputStream bais = new ByteArrayInputStream(gbytes); try { baos = new ByteArrayOutputStream(); GZIPInputStream gzis = new GZIPInputStream(bais); byte[] bytes = new byte[1024]; int len; while((len = gzis.read(bytes)) > 0) { baos.write(bytes, 0, len); } } catch (IOException e) { e.printStackTrace(); } return(baos.toByteArray()); } Think there is any effect since I'm not writing out to a gzip file? Also I noticed that in the standard C# function that BitConverter reads the first four bytes and then the MemoryStream Write function is called with a start point of 4 and a length of input buffer length - 4. So is that effect the validity of the header? Jim

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  • LiteSpeed vs Apache httpd

    - by Luke
    I've been hearing things lately about the LiteSpeed webserver as being a drop-in replacement for Apache webserver. Even my web host is going to replace their shared webhost environment with LiteSpeed (I'm currently not sure if I must be happy about that or not). Does anyone have any experience with the LiteSpeed webserver (both in development and production)? It would be appreciated if you could share your experience here.

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  • Partials vs for loop — best practices

    - by Mike
    In coding up your view templates you can render a partial and pass an array of objects to be rendered once per object. OR you can use a For blank in @blank loop. How do you decide when to do which? It seems that if you use a partial for every iterable object you will end up having to modify tons of separate files to make changes to potentially one view. With the loops you can see everything right there in one file.

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  • Performance of DrawingVisual vs Canvas.OnRender for lots of constantly changing shapes

    - by romkyns
    I'm working on a game-like app which has up to a thousand shapes (ellipses and lines) that constantly change at 60fps. Having read an excellent article on rendering many moving shapes, I implemented this using a custom Canvas descendant that overrides OnRender to do the drawing via a DrawingContext. The performance is quite reasonable, although the CPU usage stays high. However, the article suggests that the most efficient approach for constantly moving shapes is to use lots of DrawingVisual instances instead of OnRender. Unfortunately though it doesn't explain why that should be faster for this scenario. Changing the implementation in this way is not a small effort, so I'd like to understand the reasons and whether they are applicable to me before deciding to make the switch. Why could the DrawingVisual approach result in lower CPU usage than the OnRender approach in this scenario?

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  • GWT vs. Cappuccino

    - by James
    Hi, I'm in the planning stage of a web application and I'm trying to choose between GWT and Cappuccino. I have an idea of which one I think is better, but my partner is sold on the other choice. I was hoping to get some feedback on pros and cons for each from people who have used one or the other or both. Thanks in advance for any insight you might have.

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  • CSS "color" vs. "font-color"

    - by Fred Wilson
    Anyone know why CSS provides "color:" for text, but does not have "font-color:" or "text-color:"? Seems very counter-intuitive.. kind of like "text-decoration: bold" rather than "font-style: ". I must be new here. :o) Seriously, does anyone know why/how the w3c came up with such a wide array of CSS names like this?

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  • Asp.Net WriteSubsitution vs PartialView - the right way

    - by radu-negrila
    Hi, I have a partial view that should not be cached in a output cached MVC view. Usually you write non-cached content by using Response.WriteSubstitution. The problem is that WriteSubstitution takes as a parameter a HttpResponseSubstitutionCallback callback which looks like this: public delegate string HttpResponseSubstitutionCallback(System.Web.HttpContext context) This is where things get complicated since there is no easy/fun way to generate the html on the fly. You have to do a hack like this. So the question is: Is there an easier way to make a partial view not cached ?

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  • ModelVisual3D vs Model3DGroup

    - by bitbonk
    Is there any disadvantage of using ModelVisual3D over Model3DGroup. How much can the resource/performance impact possibly be? ModelVisual3D gives me much more than Model3DGroup does but AFAIK everything that can be done with Model3DGroup can alos be done with ModelVisual3D. So why not just always use ModelVisual3D?

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  • Http Requests POST vs GET

    - by behrk2
    Hi everyone, I am using a lot of HTTP Requests in an application that I am writing which uses OAuth. Currently, I am sending my GET and POST requests the same way: HttpConnection connection = (HttpConnection) Connector.open(url + connectionParameters); connection.setRequestMethod(method); connection.setRequestProperty("WWW-Authenticate", "OAuth realm=api.netflix.com"); int responseCode = connection.getResponseCode(); And this is working fine. I am successfully POSTing and GETing. However, I am worried that I am not doing POST the right way. Do I need to include in the above code the following if-statement? if (method.equals("POST") && postData != null) { connection.setRequestProperty("Content-type", "application/x-www-form-urlencoded"); connection.setRequestProperty("Content-Length", Integer .toString(postData.length)); OutputStream requestOutput = connection.openOutputStream(); requestOutput.write(postData); requestOutput.close(); } If so, why? What's the difference? I would appreciate any feedback. Thanks!

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