Actions target component so the id used.
when your component is rendered multiple times,
clientId changes and can be used as identifier.
if you want clientId in the action link, send is as context parameter.
Davor Hrg
On 2/4/08, Alexander Lamb <[EMAIL PROTECTED]> wrote:
> Well, getting close, but not quite.
>
> Indeed, the getClientId works fine, but since my component is actually
> a graph (JFreeChart) being rendered from an URL, it looks like the
> clientId is not pushed to the ActionLink created.
>
> @SuppressWarnings("unchecked")
> void beginRender(MarkupWriter writer) {
> _clientId = _renderSupport.allocateClientId(_resources.getId());
> System.out.println("--- CLIENT ID: " + _clientId);
> System.out.println("--- RESOURCES ID: " + _resources.getId());
> System.out.println("--- RESOURCES COMPLETE ID: " +
> _resources.getCompleteId());
> //generate action link
> Link link = _resources.createActionLink("chart", false, _width,
> _height);
> Element img = writer.element("img", "src", link, "id",
> _clientId);
>
> if(_popupWidth == 0)
> _popupWidth = 2 * _width;
> if(_popupHeight == 0)
> _popupHeight = 2 * _height;
> link = _resources.createActionLink("chart", false, _popupWidth,
> _popupHeight);
> img.attribute("onclick", "window.open('"+link
> +"','_blank','width="+(_popupWidth+24)+", height="+(_popupHeight
> +24)+"')");
> img.attribute("style", "cursor:pointer");
>
> _resources.renderInformalParameters(writer);
> }
>
>
> My trace and the HTML source generated shows very well the clientId is
> incremented correctly... but the ActionLink generated is not
> (completeId stays always as the initial id).
>
> Alex
>
> Le 4 févr. 08 à 15:45, Chris Lewis a écrit :
>
> > Alex,
> >
> > Id generation, as far as I know, does not come for free. If you want
> > to receive an id generated by T5, you have to explicitly request it.
> > You'll find this done in one of the parent classes of the field
> > elements - possibly in AbstractField. I've implemented it the same
> > way in several different components, one of which you can see here:
> >
> > http://code.google.com/p/gc-tapestry-components/source/browse/trunk/gc-tapestry5-components/src/main/java/net/godcode/t5c/components/SlideShow.java
> >
> > The key parts are:
> >
> > @Inject
> > private ComponentResources resources;
> > @Environmental
> > private PageRenderSupport renderSupport;
> > /** The client-side id. */
> > private String clientId;
> > /* Render phase. */
> > @SetupRender
> > void setupRender() {
> > clientId =
> > renderSupport.allocateClientId(resources.getId());
> > }
> >
> > And then making sure you insert clientId into your component tag's
> > id attribute. This could probably be isolated into a mixin, or you
> > could probably just extend AbstractField. That would make sense as
> > long as your component's behavior merits the semantics of a field
> > (which it doesn't seem to).
> >
> > Hope that helps.
> >
> > chris
> >
> >
> > Alexander Lamb wrote:
> >> Hello list,
> >>
> >> It looks like custom components are not statefull.
> >>
> >> Indeed, I have a loop which contains a graph I generate and a
> >> TextField (for testing purposes), and the generated code looks like
> >> this:
> >>
> >> <div><img src="./
> >> statistics
> >> .dashboardview.enrollmentbenchmarkchart.monthserieslinechart:chart/
> >> 460/280"></div></div></td></tr><tr><td><input id="textfield_8"
> >> name="textfield_8" type="text" value="ITALY"><img alt="[Error]"
> >> class="t-error-icon t-invisible" id="textfield_8:icon" src="assets/
> >> tapestry/field-error-marker.gif"><div> IT <div><img src="./
> >> statistics
> >> .dashboardview.enrollmentbenchmarkchart.monthserieslinechart:chart/
> >> 460/280"></div></div></td></tr><tr><td><input id="textfield_9"
> >> name="textfield_9" type="text" value="NETHERLANDS"><img
> >> alt="[Error]" class="t-error-icon t-invisible"
> >> id="textfield_9:icon" src="assets/tapestry/field-error-
> >> marker.gif"><div> NL <div><img src="./
> >> statistics
> >> .dashboardview.enrollmentbenchmarkchart.monthserieslinechart:chart/
> >> 460/280"></div></div></td></tr><tr><td><input id="textfield_10"
> >> name="textfield_10" type="text" value="NORWAY"><img alt="[Error]"
> >> class="t-error-icon t-invisible" id="textfield_10:icon" src="assets/
> >> tapestry/field-error-marker.gif"><div> NO
> >> As you can see, my TextField gets incremented but not my
> >> enrollmentbenchmarkchart !
> >> Should I file a bug for this?
> >> P.S. I tried to generate the ids but it didn't work.
> >> Thanks,
> >>
> >> Alex
> >>
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> >>
> >
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