Re: tml parameter rendered into a JavaScript string
See
http://tapestry.1045711.n5.nabble.com/Getting-the-HTML-markup-string-from-a-RenderCommand-td5564418.html
On Friday, 24 February 2012, Lance Java wrote:
> I am writing a google maps component which can display markers on a map,
each marker has an info window when it is clicked on. I'd like to pass a
parameter to the component containing the tml to render each marker's info
window.
>
> eg:
>
> Page.java
>
> @InjectComponent
> @Property
> GoogleMap mygooglemap
>
> public List getMarkers() {
>...
> }
>
> Page.tml
>
>
>
> ${mygooglemap.currentmarker.data.title}
> ${mygooglemap.currentmarker.data.body}
>
>
>
> The only thing is that the google maps api wants each marker's infowindow
html to be a javascript string so I somehow need to use tapestry's template
engine to generate strings for each marker's infowindow which I can then
use to generate javascript.
>
> I have seen that the new Tree component can accept a "label" property
which allows the user to provide a custom template for rendering each
label. The label parameter is of type RenderCommand and RenderCommand has a
single method:
>
> void render(MarkupWriter writer, RenderQueue queue);
>
> So, I was hoping that I could do the same sort of thing except that
instead of rendering to the response MarkupWriter, I could pass an empty
MarkupWriter to this method and then extract the generated markup somehow
into a string to then use it to generate my javascript.
>
> Has anyone done this sort of thing before?
> Am I on the right track or is there a simpler way?
RE: tml parameter rendered into a JavaScript string
Hi Lance,
We prefer keep the model like this as a matter of separation of concerns, and
let the user fill the model with his own server side logic.
BTW, that didn't mean it's not possible to get a list of markers from a
database.
You can loop over a list of markers and fetch the marker infos from a database
or a lucene search result :
---
tml
---
---
Java
---
@Property
private GMapMarkerModel currentMarker;
public List getMarkers()
{
List list = new ArrayList();
// Fill list from Lucene or Database
return list;
}
Laurent
-Message d'origine-
De : Lance Java [mailto:lance.j...@googlemail.com]
Envoyé : lundi 27 février 2012 10:46
À : Tapestry users
Objet : Re: tml parameter rendered into a JavaScript string
Hi Laurent,
I think the normal use case for using a google map would be to get a list of
markers from a database search or from a lucene search result. Using your
current implementation this would mean storing html in the database which I'd
like to avoid.
I would like to follow a similar pattern to the tapestry tree component where
you do the following:
${tree.node.label}
${tree.node.label}
The tapestry tree component requires a treeModel. As it iterates the treeModel,
it updates the "node" property. Each tree node has a value property which is of
generic type T and is the actual data (hibernate
entity?) backing the treeNode which can be used to generate a custom label as I
have done above.
http://tapestry.apache.org/5.3.1/apidocs/src-html/org/apache/tapestry5/corelib/components/Tree.html
As a suggestion for implementing this in your library, I would change
GMapMarkerModel to GMapMarkerModel and had a public T getValue(). Then I
would change the GMap component to update the "currentMarker" property each
time it iterates the list.
Then you could do something like:
---
tml
---
${gmap.currentMarker.value.title}
${gmap.currentMarker.value.foo}
${gmap.currentMarker.value.bar}
---
java
---
@InjectComponent
@Property
private GMap gmap;
public List getMarkers() {
return getMarkersFromLuceneOrDatabaseEtc();
}
Cheers,
Lance.
On Saturday, 25 February 2012, Guerin Laurent
wrote:
> Hi Lance,
>
> in fact, in my sample (Eiffel Tower example), i put html content into
properties file but you're right : i agree that this could be easier to
directly use block binding parameter or the GMap api support for passing the id
of a
> html element.
> I'll try to add this feature in the next release.
>
> Tanks for your feedback.
>
> Laurent
>
>
> De : Lance Java [lance.j...@googlemail.com] Date d'envoi : samedi 25
> février 2012 11:49 À : Tapestry users Objet : Re: RE : tml parameter
> rendered into a JavaScript string
>
> Hi Laurent,
>
> I took a look at your library and from what I can see, it is missing
> the functionality that I want. It seems that each marker has an info
> property which is a string containing the text to render in the info
> window. I
would
> like each marker's info window to contain complex html and I would
> like to achieve this by passing a block (or perhaps a render command)
> to the gmap component which will be used to render each marker's info window.
>
> I have noticed that the google map marker api supports passing the id
> of a html element instead of the text content to show for an info
> window. I think I will explore the option of rendering a hidden div
> for each
marker's
> info window using a RenderCommand parameter and the MarkupWriter. I
> will then pass the div id's to the gmap's javascript initializer so
> that the info window div can be shown when a marker is clicked.
>
> Unless, of course, someone can tell me how to use tapestry's
> templating engine to render strings on the serverside which I can pass
> to the javascript initializer. I'm thinking that tapestry must be
> doing this somewhere in order for MultiZoneUpdate to work?
>
>
> On 25 February 2012 06:54, Guerin Laurent wrote:
>
>> Hi Lance,
>>
>> with exanpe-t5-lib, we provide a such component with markers and HTML
>> InfoWindows :
>> http://exanpe-t5-lib.appspot.com/components/googlemap/example2
>>
>> If you want to build your own component, you can have a look at the
source
>> code :
>>
>>
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/java/fr/exanpe/t5/lib/components/GMap.java
>>
>> The JS part (l. 2809) :
>>
>>
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/resources/fr/exanpe/t5/lib/components
Re: tml parameter rendered into a JavaScript string
Hi Laurent,
I think the normal use case for using a google map would be to get a list
of markers from a database search or from a lucene search result. Using
your current implementation this would mean storing html in the database
which I'd like to avoid.
I would like to follow a similar pattern to the tapestry tree component
where you do the following:
${tree.node.label}
${tree.node.label}
The tapestry tree component requires a treeModel. As it iterates the
treeModel, it updates the "node" property. Each tree node has a value
property which is of generic type T and is the actual data (hibernate
entity?) backing the treeNode which can be used to generate a custom label
as I have done above.
http://tapestry.apache.org/5.3.1/apidocs/src-html/org/apache/tapestry5/corelib/components/Tree.html
As a suggestion for implementing this in your library, I would change
GMapMarkerModel to GMapMarkerModel and had a public T getValue(). Then I
would change the GMap component to update the "currentMarker" property each
time it iterates the list.
Then you could do something like:
---
tml
---
${gmap.currentMarker.value.title}
${gmap.currentMarker.value.foo}
${gmap.currentMarker.value.bar}
---
java
---
@InjectComponent
@Property
private GMap gmap;
public List getMarkers() {
return getMarkersFromLuceneOrDatabaseEtc();
}
Cheers,
Lance.
On Saturday, 25 February 2012, Guerin Laurent
wrote:
> Hi Lance,
>
> in fact, in my sample (Eiffel Tower example), i put html content into
properties file but you're right : i agree that this could be easier to
directly use block binding parameter or the GMap api support for passing
the id of a
> html element.
> I'll try to add this feature in the next release.
>
> Tanks for your feedback.
>
> Laurent
>
>
> De : Lance Java [lance.j...@googlemail.com]
> Date d'envoi : samedi 25 février 2012 11:49
> À : Tapestry users
> Objet : Re: RE : tml parameter rendered into a JavaScript string
>
> Hi Laurent,
>
> I took a look at your library and from what I can see, it is missing the
> functionality that I want. It seems that each marker has an info property
> which is a string containing the text to render in the info window. I
would
> like each marker's info window to contain complex html and I would like to
> achieve this by passing a block (or perhaps a render command) to the gmap
> component which will be used to render each marker's info window.
>
> I have noticed that the google map marker api supports passing the id of a
> html element instead of the text content to show for an info window. I
> think I will explore the option of rendering a hidden div for each
marker's
> info window using a RenderCommand parameter and the MarkupWriter. I will
> then pass the div id's to the gmap's javascript initializer so that the
> info window div can be shown when a marker is clicked.
>
> Unless, of course, someone can tell me how to use tapestry's templating
> engine to render strings on the serverside which I can pass to the
> javascript initializer. I'm thinking that tapestry must be doing this
> somewhere in order for MultiZoneUpdate to work?
>
>
> On 25 February 2012 06:54, Guerin Laurent wrote:
>
>> Hi Lance,
>>
>> with exanpe-t5-lib, we provide a such component with markers and HTML
>> InfoWindows :
>> http://exanpe-t5-lib.appspot.com/components/googlemap/example2
>>
>> If you want to build your own component, you can have a look at the
source
>> code :
>>
>>
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/java/fr/exanpe/t5/lib/components/GMap.java
>>
>> The JS part (l. 2809) :
>>
>>
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/resources/fr/exanpe/t5/lib/components/js/exanpe-t5-lib.js
>>
>> Laurent.
>>
>>
>> De : Lance Java [lance.j...@googlemail.com]
>> Date d'envoi : vendredi 24 février 2012 17:37
>> À : Tapestry users
>> Objet : Re: tml parameter rendered into a JavaScript string
>>
>> It seems I'm having troubles explaining what it is I'm trying to do. I
need
>> an implementation for generateInfoWindowHtml() in the code below.
>>
>> @Import(library="mygooglemap.js")
>> public class GoogleMap {
>>@Inject
>>JavaScriptSupport jsSupport;
>>
>>@Parameter(required=true)
>>RenderCommand infoWindow;
>>
>>@Parameter(required=true)
>>List markers;
>>
>>
RE : RE : tml parameter rendered into a JavaScript string
Hi Lance,
in fact, in my sample (Eiffel Tower example), i put html content into
properties file but you're right : i agree that this could be easier to
directly use block binding parameter or the GMap api support for passing the id
of a
html element.
I'll try to add this feature in the next release.
Tanks for your feedback.
Laurent
De : Lance Java [lance.j...@googlemail.com]
Date d'envoi : samedi 25 février 2012 11:49
À : Tapestry users
Objet : Re: RE : tml parameter rendered into a JavaScript string
Hi Laurent,
I took a look at your library and from what I can see, it is missing the
functionality that I want. It seems that each marker has an info property
which is a string containing the text to render in the info window. I would
like each marker's info window to contain complex html and I would like to
achieve this by passing a block (or perhaps a render command) to the gmap
component which will be used to render each marker's info window.
I have noticed that the google map marker api supports passing the id of a
html element instead of the text content to show for an info window. I
think I will explore the option of rendering a hidden div for each marker's
info window using a RenderCommand parameter and the MarkupWriter. I will
then pass the div id's to the gmap's javascript initializer so that the
info window div can be shown when a marker is clicked.
Unless, of course, someone can tell me how to use tapestry's templating
engine to render strings on the serverside which I can pass to the
javascript initializer. I'm thinking that tapestry must be doing this
somewhere in order for MultiZoneUpdate to work?
On 25 February 2012 06:54, Guerin Laurent wrote:
> Hi Lance,
>
> with exanpe-t5-lib, we provide a such component with markers and HTML
> InfoWindows :
> http://exanpe-t5-lib.appspot.com/components/googlemap/example2
>
> If you want to build your own component, you can have a look at the source
> code :
>
> https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/java/fr/exanpe/t5/lib/components/GMap.java
>
> The JS part (l. 2809) :
>
> https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/resources/fr/exanpe/t5/lib/components/js/exanpe-t5-lib.js
>
> Laurent.
>
>
> De : Lance Java [lance.j...@googlemail.com]
> Date d'envoi : vendredi 24 février 2012 17:37
> À : Tapestry users
> Objet : Re: tml parameter rendered into a JavaScript string
>
> It seems I'm having troubles explaining what it is I'm trying to do. I need
> an implementation for generateInfoWindowHtml() in the code below.
>
> @Import(library="mygooglemap.js")
> public class GoogleMap {
>@Inject
>JavaScriptSupport jsSupport;
>
>@Parameter(required=true)
>RenderCommand infoWindow;
>
>@Parameter(required=true)
>List markers;
>
>@Parameter(required=true)
>double centerLatitude;
>
>@Parameter(required=true)
>double centerLongitude;
>
>@Parameter(required=true)
>int zoom;
>
>
>@SetupRender
>void setupRender() {
>JSONObject mapInitializer = createInitializerJsonObject();
>jsSupport.addScript("initGoogleMap(%s)", mapInitializer);
>}
>
>private JSONObject createInitializerJsonObject() {
>JSONObject init = new JSONObject();
>JSONArray markerInits = new JSONArray();
>for (GoogleMapMarker marker : markers) {
>JSONObject markerInit = new JSONObject();
>markerInit.put("latitude", marker.getLatitude());
>markerInit.put("longitude", marker.getLongitude());
>markerInit.put("infoWindowHtml",
> generateInfoWindowHtml(marker));
>}
>init.put("centerLatutude", centerLatitude);
>init.put("centerLongitude", centerLongitude);
>init.put("zoom", zoom);
>init.put("markers", markerInits);
>
>return init;
>}
>
>private String generateInfoWindowHtml(GoogleMapMarker marker) {
>// Use tapestry's template engine to generate html using
> marker and infoWindow
>}
>
> }
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
>
>
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Re: RE : tml parameter rendered into a JavaScript string
Hi Laurent,
I took a look at your library and from what I can see, it is missing the
functionality that I want. It seems that each marker has an info property
which is a string containing the text to render in the info window. I would
like each marker's info window to contain complex html and I would like to
achieve this by passing a block (or perhaps a render command) to the gmap
component which will be used to render each marker's info window.
I have noticed that the google map marker api supports passing the id of a
html element instead of the text content to show for an info window. I
think I will explore the option of rendering a hidden div for each marker's
info window using a RenderCommand parameter and the MarkupWriter. I will
then pass the div id's to the gmap's javascript initializer so that the
info window div can be shown when a marker is clicked.
Unless, of course, someone can tell me how to use tapestry's templating
engine to render strings on the serverside which I can pass to the
javascript initializer. I'm thinking that tapestry must be doing this
somewhere in order for MultiZoneUpdate to work?
On 25 February 2012 06:54, Guerin Laurent wrote:
> Hi Lance,
>
> with exanpe-t5-lib, we provide a such component with markers and HTML
> InfoWindows :
> http://exanpe-t5-lib.appspot.com/components/googlemap/example2
>
> If you want to build your own component, you can have a look at the source
> code :
>
> https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/java/fr/exanpe/t5/lib/components/GMap.java
>
> The JS part (l. 2809) :
>
> https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/resources/fr/exanpe/t5/lib/components/js/exanpe-t5-lib.js
>
> Laurent.
>
>
> De : Lance Java [lance.j...@googlemail.com]
> Date d'envoi : vendredi 24 février 2012 17:37
> À : Tapestry users
> Objet : Re: tml parameter rendered into a JavaScript string
>
> It seems I'm having troubles explaining what it is I'm trying to do. I need
> an implementation for generateInfoWindowHtml() in the code below.
>
> @Import(library="mygooglemap.js")
> public class GoogleMap {
>@Inject
>JavaScriptSupport jsSupport;
>
>@Parameter(required=true)
>RenderCommand infoWindow;
>
>@Parameter(required=true)
>List markers;
>
>@Parameter(required=true)
>double centerLatitude;
>
>@Parameter(required=true)
>double centerLongitude;
>
>@Parameter(required=true)
>int zoom;
>
>
>@SetupRender
>void setupRender() {
>JSONObject mapInitializer = createInitializerJsonObject();
>jsSupport.addScript("initGoogleMap(%s)", mapInitializer);
>}
>
>private JSONObject createInitializerJsonObject() {
>JSONObject init = new JSONObject();
>JSONArray markerInits = new JSONArray();
>for (GoogleMapMarker marker : markers) {
>JSONObject markerInit = new JSONObject();
>markerInit.put("latitude", marker.getLatitude());
>markerInit.put("longitude", marker.getLongitude());
>markerInit.put("infoWindowHtml",
> generateInfoWindowHtml(marker));
>}
>init.put("centerLatutude", centerLatitude);
>init.put("centerLongitude", centerLongitude);
>init.put("zoom", zoom);
>init.put("markers", markerInits);
>
>return init;
>}
>
>private String generateInfoWindowHtml(GoogleMapMarker marker) {
>// Use tapestry's template engine to generate html using
> marker and infoWindow
>}
>
> }
>
> -
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
>
>
RE : tml parameter rendered into a JavaScript string
Hi Lance,
with exanpe-t5-lib, we provide a such component with markers and HTML
InfoWindows :
http://exanpe-t5-lib.appspot.com/components/googlemap/example2
If you want to build your own component, you can have a look at the source code
:
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/java/fr/exanpe/t5/lib/components/GMap.java
The JS part (l. 2809) :
https://github.com/exanpe/exanpe-t5-lib/blob/master/src/main/resources/fr/exanpe/t5/lib/components/js/exanpe-t5-lib.js
Laurent.
De : Lance Java [lance.j...@googlemail.com]
Date d'envoi : vendredi 24 février 2012 17:37
À : Tapestry users
Objet : Re: tml parameter rendered into a JavaScript string
It seems I'm having troubles explaining what it is I'm trying to do. I need
an implementation for generateInfoWindowHtml() in the code below.
@Import(library="mygooglemap.js")
public class GoogleMap {
@Inject
JavaScriptSupport jsSupport;
@Parameter(required=true)
RenderCommand infoWindow;
@Parameter(required=true)
List markers;
@Parameter(required=true)
double centerLatitude;
@Parameter(required=true)
double centerLongitude;
@Parameter(required=true)
int zoom;
@SetupRender
void setupRender() {
JSONObject mapInitializer = createInitializerJsonObject();
jsSupport.addScript("initGoogleMap(%s)", mapInitializer);
}
private JSONObject createInitializerJsonObject() {
JSONObject init = new JSONObject();
JSONArray markerInits = new JSONArray();
for (GoogleMapMarker marker : markers) {
JSONObject markerInit = new JSONObject();
markerInit.put("latitude", marker.getLatitude());
markerInit.put("longitude", marker.getLongitude());
markerInit.put("infoWindowHtml",
generateInfoWindowHtml(marker));
}
init.put("centerLatutude", centerLatitude);
init.put("centerLongitude", centerLongitude);
init.put("zoom", zoom);
init.put("markers", markerInits);
return init;
}
private String generateInfoWindowHtml(GoogleMapMarker marker) {
// Use tapestry's template engine to generate html using
marker and infoWindow
}
}
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Re: tml parameter rendered into a JavaScript string
While I'm sure it could be made to work with addScript IMHO it's just not the
right way.
@SetupRender
void setupRender() {
js.addInitializerCall("GoogleMap",
createInitializerJsonObject());
}
Then in mygooglemap.js (I use jquery but it's more or less the same for
prototype)
(function($){
/** Container of functions that may be invoked by the Tapestry.init()
function. */
$.extend(Tapestry.Initializer, {
GoogleMap: function(specs){
//specs will be your JSONObject
}
});
})(jQuery);
When your page loads Tapestry will call your initializer for each JSONObject
you add. It also works for zones. addScript gets tricky for zones.
--
View this message in context:
http://tapestry.1045711.n5.nabble.com/tml-parameter-rendered-into-a-JavaScript-string-tp5512889p5513362.html
Sent from the Tapestry - User mailing list archive at Nabble.com.
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Re: tml parameter rendered into a JavaScript string
It seems I'm having troubles explaining what it is I'm trying to do. I need
an implementation for generateInfoWindowHtml() in the code below.
@Import(library="mygooglemap.js")
public class GoogleMap {
@Inject
JavaScriptSupport jsSupport;
@Parameter(required=true)
RenderCommand infoWindow;
@Parameter(required=true)
List markers;
@Parameter(required=true)
double centerLatitude;
@Parameter(required=true)
double centerLongitude;
@Parameter(required=true)
int zoom;
@SetupRender
void setupRender() {
JSONObject mapInitializer = createInitializerJsonObject();
jsSupport.addScript("initGoogleMap(%s)", mapInitializer);
}
private JSONObject createInitializerJsonObject() {
JSONObject init = new JSONObject();
JSONArray markerInits = new JSONArray();
for (GoogleMapMarker marker : markers) {
JSONObject markerInit = new JSONObject();
markerInit.put("latitude", marker.getLatitude());
markerInit.put("longitude", marker.getLongitude());
markerInit.put("infoWindowHtml",
generateInfoWindowHtml(marker));
}
init.put("centerLatutude", centerLatitude);
init.put("centerLongitude", centerLongitude);
init.put("zoom", zoom);
init.put("markers", markerInits);
return init;
}
private String generateInfoWindowHtml(GoogleMapMarker marker) {
// Use tapestry's template engine to generate html using
marker and infoWindow
}
}
Re: tml parameter rendered into a JavaScript string
Perhaps it's not clear what you want but I think javaScriptSupport.addInitializerCall does exactly what you need if you create a Tapestry initializer in you javascript file. it puts your JSONObject into the html and then calls your javascript function in the initializer with each JSONObject as an argument. -- View this message in context: http://tapestry.1045711.n5.nabble.com/tml-parameter-rendered-into-a-JavaScript-string-tp5512889p5513139.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: tml parameter rendered into a JavaScript string
Hi Thiago,
I realise that I will need to use JavascriptSupport and an imported .js
file to achieve this. My question is about generating the JsonObject
serverside which will be used in JavascriptSupport.addScript(). I need to
have a javascript string containing the infowindow html (see
http://code.google.com/apis/maps/documentation/javascript/overlays.html#InfoWindows
).
I'm guessing that my JsonObject will look something like
{
markers:[
{latitude:xxx, longitude:yyy, infowindowhtml:'marker 1
titlemarker 1 body'},
{latitude:xxx, longitude:yyy, infowindowhtml:'marker 2
titlemarker 2 body'},
{latitude:xxx, longitude:yyy, infowindowhtml:'marker 3
titlemarker 3 body'},
]
}
So I need to generate each infowindowhtml using tapestry's templating
engine to merge the current marker object with the template (passed as a
parameter to the component).
On Friday, 24 February 2012, Thiago H. de Paula Figueiredo <
thiag...@gmail.com> wrote:
> If you need to generate JavaScript, do it by using JavaScriptSupport and
imported .js files.
>
> On Fri, 24 Feb 2012 12:05:46 -0200, Lance Java
wrote:
>
>> I am writing a google maps component which can display markers on a map,
>> each marker has an info window when it is clicked on. I'd like to pass a
>> parameter to the component containing the tml to render each marker's
info
>> window.
>>
>> eg:
>>
>> Page.java
>>
>> @InjectComponent
>> @Property
>> GoogleMap mygooglemap
>>
>> public List getMarkers() {
>> ...
>> }
>>
>> Page.tml
>>
>>
>>
>> > style="infowindow-title">${mygooglemap.currentmarker.data.title}
>> > style="infowindow-body">${mygooglemap.currentmarker.data.body}
>>
>>
>>
>> The only thing is that the google maps api wants each marker's infowindow
>> html to be a javascript string so I somehow need to use tapestry's
template
>> engine to generate strings for each marker's infowindow which I can then
>> use to generate javascript.
>>
>> I have seen that the new Tree component can accept a "label" property
which
>> allows the user to provide a custom template for rendering each label.
The
>> label parameter is of type RenderCommand and RenderCommand has a single
>> method:
>>
>>void render(MarkupWriter writer, RenderQueue queue);
>>
>> So, I was hoping that I could do the same sort of thing except that
instead
>> of rendering to the response MarkupWriter, I could pass an empty
>> MarkupWriter to this method and then extract the generated markup somehow
>> into a string to then use it to generate my javascript.
>>
>> Has anyone done this sort of thing before?
>> Am I on the right track or is there a simpler way?
>
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
> Owner, Ars Machina Tecnologia da Informação Ltda.
> Consultor, desenvolvedor e instrutor em Java, Tapestry e Hibernate
> http://www.arsmachina.com.br
>
Re: tml parameter rendered into a JavaScript string
If you need to generate JavaScript, do it by using JavaScriptSupport and
imported .js files.
On Fri, 24 Feb 2012 12:05:46 -0200, Lance Java
wrote:
I am writing a google maps component which can display markers on a map,
each marker has an info window when it is clicked on. I'd like to pass a
parameter to the component containing the tml to render each marker's
info
window.
eg:
Page.java
@InjectComponent
@Property
GoogleMap mygooglemap
public List getMarkers() {
...
}
Page.tml
${mygooglemap.currentmarker.data.title}
${mygooglemap.currentmarker.data.body}
The only thing is that the google maps api wants each marker's infowindow
html to be a javascript string so I somehow need to use tapestry's
template
engine to generate strings for each marker's infowindow which I can then
use to generate javascript.
I have seen that the new Tree component can accept a "label" property
which
allows the user to provide a custom template for rendering each label.
The
label parameter is of type RenderCommand and RenderCommand has a single
method:
void render(MarkupWriter writer, RenderQueue queue);
So, I was hoping that I could do the same sort of thing except that
instead
of rendering to the response MarkupWriter, I could pass an empty
MarkupWriter to this method and then extract the generated markup somehow
into a string to then use it to generate my javascript.
Has anyone done this sort of thing before?
Am I on the right track or is there a simpler way?
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
Consultor, desenvolvedor e instrutor em Java, Tapestry e Hibernate
http://www.arsmachina.com.br
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tml parameter rendered into a JavaScript string
I am writing a google maps component which can display markers on a map,
each marker has an info window when it is clicked on. I'd like to pass a
parameter to the component containing the tml to render each marker's info
window.
eg:
Page.java
@InjectComponent
@Property
GoogleMap mygooglemap
public List getMarkers() {
...
}
Page.tml
${mygooglemap.currentmarker.data.title}
${mygooglemap.currentmarker.data.body}
The only thing is that the google maps api wants each marker's infowindow
html to be a javascript string so I somehow need to use tapestry's template
engine to generate strings for each marker's infowindow which I can then
use to generate javascript.
I have seen that the new Tree component can accept a "label" property which
allows the user to provide a custom template for rendering each label. The
label parameter is of type RenderCommand and RenderCommand has a single
method:
void render(MarkupWriter writer, RenderQueue queue);
So, I was hoping that I could do the same sort of thing except that instead
of rendering to the response MarkupWriter, I could pass an empty
MarkupWriter to this method and then extract the generated markup somehow
into a string to then use it to generate my javascript.
Has anyone done this sort of thing before?
Am I on the right track or is there a simpler way?
