I've added a boolean - to save a few function calls - and also using a Timer (
instead of an enterframe) on a slowish delay - to save a few processor cycles.
private var tooltipFlag : Boolean = false;
/**
* @method
* @tooltip
* @param
* @return
*/
private function detectMouseOverLink( e : TimerEvent = null ) : void {
var index : Number = label.getCharIndexAtPoint (label.mouseX,
label.mouseY);
var url : String = "";
if (index > 0) {
var fmt:TextFormat = label.getTextFormat (index, index + 1);
if (fmt.url) url = fmt.url;
}
if ( ( url.length > 0 )
&& ( ! tooltipFlag ) ) {
tooltipFlag = true;
trace('show - url: ' + url + ' tooltipFlag: ' + tooltipFlag );
} else if ( url.length == 0 && tooltipFlag ) {
tooltipFlag = false;
trace('hide - url: ' + url + ' tooltipFlag: ' + tooltipFlag );
}
}
If i get time - i might turn this into a utility class - so you can do
something like:
txtRollOverManger.addRollOverListener( txt , callback ) -
or
txtRollOverManger.removeRollOverListener( txt , callback )
i have a few textfields - quite a few timers might affect performance...
thanks...
- karim
On 15 Jun 2010, at 14:33, Ktu wrote:
> Regardless of whether you are using multiple TextFormat objects or htmlText,
> using getTextFormat(begin, end), the textFormat will have the appropriate
> url.
> This is a quick dirty test. Glad I could help out. I'm posting the code for
> my test in case anyone else finds it useful.
>
> One thing to note!
> If text in a textfield does not fill the text field, a error can appear. In
> my code below you can see that error. A link on the bottom line will
> register when the cursor is in empty space below the link, but not directly
> over it. The x property of the mouse is triggering the rollover. Maybe
> someone else can explain this issue better.
>
>
> AS3 - Timeline code
>
> var txt:TextField = new TextField ();
> txt.width = txt.height = 150;
> txt.multiline = true;
> txt.wordWrap = true;
> txt.htmlText = "when registered, all <a href=\"www.google.com\">links</a> in
> text fields will update <a href=\"www.theflashblog.com\">the status bar.</a>
> hahahahah"
> txt.border = true;
> txt.x = txt.y = 100;
> addChild(txt);
>
> addEventListener (Event.ENTER_FRAME, captureEnterFrame)
>
> function captureEnterFrame (e:Event):void {
> var index = txt.getCharIndexAtPoint (txt.mouseX, txt.mouseY);
> var url = "";
> if (index >= 0) {
> var fmt:TextFormat = txt.getTextFormat (index, index + 1);
> if (fmt.url) url = fmt.url;
> }
> if (url) {
> displayTooltip(url, new Point (mouseX, mouseY));
> } else {
> removeTooltip();
> }
> }
>
> function displayTooltip(url:String, pos:Point):void {
> if (getChildByName("ToolTip")) return;
> var tf:TextField = new TextField ();
> tf.name = "ToolTip";
> tf.autoSize = "left";
> tf.text = url;
> tf.background = true; tf.border = true;
> tf.backgroundColor = 0x00AAAAFF;
> tf.x = pos.x + 5;
> tf.y = pos.y + 15;
> addChild(tf);
>
> }
> function removeTooltip ():void {
> var t:TextField = getChildByName("ToolTip") as TextField;
> if (t) removeChild(t);
> }
>
> On Tue, Jun 15, 2010 at 9:06 AM, Karim Beyrouti <ka...@kurst.co.uk> wrote:
>
>> The HREF link is only part the the textfields content, and each textfield
>> can have more than one link amongst other copy
>> and need to show relevant tooltip only when user is hovering over the 'a
>> HREF' parts of the html textfield.
>>
>> On 15 Jun 2010, at 13:49, Glen Pike wrote:
>>
>>> Why not use the mouse coordinates?
>>>
>>> On 15/06/2010 13:24, Karim Beyrouti wrote:
>>>> Hi All -
>>>>
>>>> Wondering if there are any hacks to trigger a 'RollOver' script when
>> hovering over a 'a href' link in an html textfield.
>>>> Currently using TextEvent.LINK,to trigger links - but would like to show
>> a tooltip on rollover (of that part of text).
>>>>
>>>> So far the only solution i can think of is using :
>> TextField.getCharIndexAtPoint(x:Number, y:Number)
>>>> create this - but it seems like this could be quite long winded
>> solution.
>>>>
>>>> Any other ways of achieving this?
>>>>
>>>>
>>>> Thanks
>>>>
>>>>
>>>>
>>>> Karim _______________________________________________
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>>>> Flashcoders@chattyfig.figleaf.com
>>>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>>>>
>>>>
>>>>
>>>
>>> _______________________________________________
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>>
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