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Javascript: VML and onmouseover and onmouseout event howto?

Hi,

   I would like to know how to use on a VML element the fonction onmouseover. My element is dynamic.

Here is a piece of the code, there is only this part missing to make it work. I will use the onmouseover
on the rect element and when it fire I will assign a variable an ID, the one of the group element.
This will let me drag the whole group, the whole drag and drop should be working it's only the onmouseover that I don't figure out. For the moment I have remove it from the code.


var vm = document.createElement("v:group");
      vm.setAttribute("id", this.Name);
      vm.style.position = "absolute";
      vm.style.width = this.W + "px";
      vm.style.height = this.H + "px";
      vm.style.left = this.X + "px";
      vm.style.top = this.Y + "px";
      vm.style.zIndex = 0
      vm.setAttribute("coordsize", this.W + " " + this.H);
 
      var rect = document.createElement("v:rect");
      rect.setAttribute("id", this.Name + "_rect1")
      vm.style.position = "relative";
      rect.style.width = this.W  + "px";
      rect.style.height = this.H + "px";
      rect.style.zIndex = 1
      rect.setAttribute("fillcolor", "black");
      vm.appendChild(rect);
      document.body.appendChild(vm);
      vm = null
      rect = null

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0
Dogofwars
Asked:
Dogofwars
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1 Solution
 
Michel PlungjanIT ExpertCommented:
You mean

vm.onmouseover=function() {
  window.status = this.id;
  return true;
}

vm.onmouseout=function() {
  window.status = '';
  return true;
}

(Simple example).


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DogofwarsAuthor Commented:
Almost, the onmouseover most trigger only another function to give it's id to a master object like the following

Thank you by the way for your assistance.
function MasterObject()
{
   this.ActiveObject
}
 
var MO =  new MasterObject
 
vm.onmouseover = MO.ActiveObject = vm.id or 
rect.onmouseover = MO.ActiveObject = vm.id

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DogofwarsAuthor Commented:
oups. I mean var MO =  new MasterObject()
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DogofwarsAuthor Commented:
This seem to work but I cannot reference back the variable to this.Name for instance that is within the object. I presume it has no way to do so with variable since it execute the code outside the scope of the object. Would it be possible to do the following.
vm.onmouseover = this.Owner.Name + ".OnMouseOver('" + this.Name + "')"
 
When it fire the event it give this
   
    MasterObjectName.OnMouseOver('TestObject')

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0
 
Michel PlungjanIT ExpertCommented:
If you replace an event handler you need to assign a function or run a function that returns a function

This is not valid javascript

this.Owner.Name + ".OnMouseOver('" + this.Name + "')"
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DogofwarsAuthor Commented:
Do you have some kind of example to overcome this problem
0
 
Michel PlungjanIT ExpertCommented:
I gave an example. I do not understand the string
this.Owner.Name + ".OnMouseOver('" + this.Name + "')"

at all
0
 
DogofwarsAuthor Commented:
This get transform to a text string that will later be a regular javscript instruction

Like

this.Owner.Name + ".OnMouseOver('" + this.Name + "')"

become

aObject.OnMouseOver('SomeObjectID')

Anyhow the problem is that I need the example you provide to carry the reference of the object itself because for instance this.id is not reference to the object in question but just the general pool like the main variable. It's really a pain though it kinda work just the way you provided but with a lot of flaw, I have to use extra windows event and some general variable which is more difficult to track every object.

vm.onmouseover=function() {
  window.status = this.id;
  return true;
}



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Michel PlungjanIT ExpertCommented:
You mean



vm.onmouseover=function() {
  someOtherObject.onmouseover()
}


OnMouseOver is not a valid reference ot a mousover event of an object

Perhaps you mean
vm.onmouseover=function() {
  someOtherObject.SomeSpecialFunctionYouWrote('someId')
}

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Michel PlungjanIT ExpertCommented:
You can also do this:

vm.setAttribute("myParentId", "X1234");
vm.setAttribute("myParameter", "Z5678");


Perhaps you mean
vm.onmouseover=function() {
  var parentId = this.getAttribute('myParentId');
  var parameter = this.getAttribute('myParameter')
  someFunction(document.getElementById(parentId),parameter)
}

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DogofwarsAuthor Commented:
That is good compromise if at all a compromise, thank you very much that will be really useful for my drag and drop function with VML :)
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