You've got an extra level of indirection (with names) here that you don't need.
You should just use the object itself:
<canvas>
<attribute name='zoomed' type='lz.view' value="null" />
<class name="zoomingbutton" extends="button">
<handler name='onclick'>
var current = canvas.zoomed;
if (current) {
current.unzoomify();
}
canvas.zoomed = this;
this.zoomify()
</handler>
<method name="zoomify">
// Do the zooming and centering, etc.
</method>
<method name="unzoomify">
// Back to normal
</method>
</class>
<zoomingbutton ... />
<zoomingbutton ... />
<zoomingbutton ... />
</canvas>
On 2011-03-05, at 16:59, David Greisen wrote:
> It sounds like you need something like javascript's getElementById(). Then
> you could store the id of the open window in an attribute, then convert the
> id string into an object. I've looked through the docs and can't find
> anything like that for ids. Which is odd, and means I am almost certainly
> missing it.
>
> If all of your buttons are in or about the same view you can accomplish this
> quite easily using names.
>
> (not tested)
>
> <view>
> <attribute name='openbutton' type='string' />
> <button name='button1'>
> <handler name='onclick'>
> if (parent.openbutton) {
> var oldButton = parent[parent.openbutton];
> oldButton.close();
> }
> parent.openbutton = this.name;
> </handler>
> </button>
> </view>
>
> On Sat, Mar 5, 2011 at 2:20 PM, Chris Janik <[email protected]> wrote:
>
>> Sorry, I think my question was poorly put. Here's what I'm trying to do.
>>
>> I've created a class of buttons that when pressed animate to the centre of
>> the screen and display a description of the item (see attached screenshot).
>> What I'm having trouble with is determining which button is open and closing
>> it when another button is pushed.
>>
>> Here's own I'm calling the class (for testing purposes)
>> <abutton id="PWNButton" x="1200" y="100" theText="desc:/desc/PWN/text()"
>> Logo="PWN" Site="http://www.yahoo.com";
>> <http://www.yahoo.com>ImageCalc="1.0350877193"/>
>>
>> And here's the handler I was trying when a button is clicked
>>
>> <handler name="onclick">
>> Debug.write('Current open button = '+OpenButton);
>> if (OpenButton == null) {
>> OpenButton = classroot.id;
>> Debug.write('New open button = '+OpenButton);
>> classroot.OpenDisplay.doStart();
>> return;
>> } else {
>> OpenButton.CloseDisplay.doStart();
>> classroot.OpenDisplay.doStart();
>> OpenButton = classroot.id
>> Debug.write('New open button = '+OpenButton);
>> }
>> </handler>
>>
>> The problem is that when I do this I get "TypeError: Cannot call method
>> 'doStart' of undefined" - referring to OpenButton.CloseDisplay.doStart.
>>
>> I suppose I could use a switch statement to decide which button is open by
>> creating an open attribute but this also seems a little messy.
>>
>> Thanks for your reply,
>>
>> ignotus
>>
>>
>> On 11-03-05 01:31 PM, David Greisen wrote:
>>
>> You use the id as a drop-in replacement for your variable.
>>
>> <canvas>
>> <view id='firstview' visible='false' />
>> <script>
>> Debug.debug(firstview.visible)
>> </script>
>> </canvas>
>> prints false to the debug console.
>>
>> On Fri, Mar 4, 2011 at 6:54 PM, Chris Janik <[email protected]> wrote:
>>
>>> Many times I've referenced an active view by opening them like so
>>>
>>> OpenBW = new lz.BigWindow(canvas, {x:xcor, y:10, width:wid});
>>>
>>> OpenBW = something like this <BigWindow>#3 /BigWindow
>>>
>>> after doing this I can refer to that view using the variable OpenBW.
>>>
>>> In a project I'm currently working on it would be pretty messy to spawn
>>> all of my views like the one above but I still would like to be able to
>>> reference them.
>>>
>>> How can I do this?
>>>
>>> I've tried to assign the Id of the view I want to control to a variable
>>> and I've also tried getUID but both of these return "TypeError: Cannot call
>>> method 'doStart' of undefined"
>>>
>>> Can someone please help
>>>
>>> --
>>> ignotus
>>>
>>>
>>
