Re: how to inject arbitrary javascript code to a component markup?
This is a clear case for a behavior, and would be simple too.. Like so: https://wicket-stuff.svn.sourceforge.net/svnroot/wicket-stuff/trunk/wicketstuff-core/artwork-parent/artwork/src/main/java/org/wicketstuff/artwork/niftycorners/NiftyCornersBehavior.java 2009/10/10 Paul Huang > Suppose I write my own wicket component called XYZ that have the following > markup > > > > > > > > How can I inject some js code into this markup so when it's rendered in a > page, I got something like > > > > > var data=["abc", "efg"]; > document.write(data[0]); > > . > > > > You may ask why I dont simply keep the js code into the component markup > "XYZ.html", this is because the value of "data" variable will be provided > by > the user and is not fixed. >
Re: how to inject arbitrary javascript code to a component markup?
McIlwee, Craig wrote:
>
> Didn't think of that approach, looks good. But to clear up my previous
> suggestion since I guess I wasn't clear enough and its useful in other
> situations also, you need to _override_
> getAssociatedMarkupStream(boolean), not just call it.
>
> public static final String JAVASCRIPT_PLACEHOLDER = "%JS_HERE%";
> public MarkupStream getAssociatedMarkupStream(boolean throwEx) {
> String jsToInsert = ... // create your java script
> String html = ... // read HTML file via getClass().getResource
> html = html.replace(JAVASCRIPT_PLACEHOLDER, jsToInsert);
> IResourceStream srs = new StringResourceStream(html);
> MarkupResourceStream mrs = new MarkupResourceStream(srs);
> Markup markup = new SimpleMarkupLoader().loadMarkup(this, mrs, null,
> true);
> return new MarkupStream(markup);
> }
>
> and your panel
>
>
>
> %JS_HERE%
>
>
> Craig
>
Carig- Just tried your approach, it works as well. Thanks for your help.
Here is the complete code, just in case someone else may need it.
> @Override
> public MarkupStream getAssociatedMarkupStream(boolean throwEx) {
> String jsToInsert ="my js code"; // create your java script
> InputStream
> htmlStream=this.getClass().getResourceAsStream("YOUR_MARKUP_TEMPLATE.html");
> String html=convertStreamToString(htmlStream);
> html = html.replace("JAVASCRIPT_PLACEHOLDER", jsToInsert);
> IResourceStream srs = new StringResourceStream(html);
> MarkupResourceStream mrs = new MarkupResourceStream(srs);
> Markup markup = null;
> try {
> markup = new
> SimpleMarkupLoader().loadMarkup(this, mrs, null, true);
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> } catch (ResourceStreamNotFoundException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> return new MarkupStream(markup);
> }
>
> public String convertStreamToString(InputStream is) {
> /*
>* To convert the InputStream to String we use the
> BufferedReader.readLine()
>* method. We iterate until the BufferedReader return
> null which
> means
>* there's no more data to read. Each line will
> appended to a
> StringBuilder
>* and returned as String.
>*/
> BufferedReader reader = new BufferedReader(new
> InputStreamReader(is));
> StringBuilder sb = new StringBuilder();
>
> String line = null;
> try {
> while ((line = reader.readLine()) != null) {
> sb.append(line + "\n");
> }
> } catch (IOException e) {
> e.printStackTrace();
> } finally {
> try {
> is.close();
> } catch (IOException e) {
> e.printStackTrace();
> }
> }
>
> return sb.toString();
> }
>
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Re: how to inject arbitrary javascript code to a component markup?
Anton Veretennikov wrote:
>
> For example I use this markup:
>
>
>
> and associate it with simple class:
>
> public class FocusScript extends Label {
>
> public FocusScript(String id, String focusFieldMarkupId, boolean
> selectAll) {
> super(id, getFocusScript(focusFieldMarkupId, selectAll));
> setEscapeModelStrings(false);
> }
>
> @Override
> protected void onComponentTag(ComponentTag tag) {
> tag.put("language", "javascript");
> tag.put("type", "text/javascript");
> super.onComponentTag(tag);
> }
>
> @Override
> protected void onComponentTagBody(MarkupStream markupStream,
> ComponentTag openTag) {
> super.onComponentTagBody(markupStream, openTag);
> checkComponentTag(openTag, "script");
> }
>
> public static String getFocusScript(String focusFieldMarkupId,
> boolean selectAll) {
> return "document.getElementById('" + focusFieldMarkupId +
> "').focus();" +
> (selectAll?("document.getElementById('" +
> focusFieldMarkupId + "').select()"):"");
> }
>
> }
>
>
Thanks Igor and Anton. That approach works. One thing to remember is to call
"setEscapeModelStrings(false)" to insert string " " as
it is, as Anton pointed out.
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Re: how to inject arbitrary javascript code to a component markup?
Didn't think of that approach, looks good. But to clear up my previous
suggestion since I guess I wasn't clear enough and its useful in other
situations also, you need to _override_ getAssociatedMarkupStream(boolean), not
just call it.
public static final String JAVASCRIPT_PLACEHOLDER = "%JS_HERE%";
public MarkupStream getAssociatedMarkupStream(boolean throwEx) {
String jsToInsert = ... // create your java script
String html = ... // read HTML file via getClass().getResource
html = html.replace(JAVASCRIPT_PLACEHOLDER, jsToInsert);
IResourceStream srs = new StringResourceStream(html);
MarkupResourceStream mrs = new MarkupResourceStream(srs);
Markup markup = new SimpleMarkupLoader().loadMarkup(this, mrs, null, true);
return new MarkupStream(markup);
}
and your panel
%JS_HERE%
Craig
_
From: Anton Veretennikov [mailto:anton.veretenni...@gmail.com]
To: users@wicket.apache.org
Sent: Sat, 10 Oct 2009 11:24:12 -0400
Subject: Re: how to inject arbitrary javascript code to a component markup?
For example I use this markup:
and associate it with simple class:
public class FocusScript extends Label {
public FocusScript(String id, String focusFieldMarkupId, boolean selectAll)
{
super(id, getFocusScript(focusFieldMarkupId, selectAll));
setEscapeModelStrings(false);
}
@Override
protected void onComponentTag(ComponentTag tag) {
tag.put("language", "javascript");
tag.put("type", "text/javascript");
super.onComponentTag(tag);
}
@Override
protected void onComponentTagBody(MarkupStream markupStream,
ComponentTag openTag) {
super.onComponentTagBody(markupStream, openTag);
checkComponentTag(openTag, "script");
}
public static String getFocusScript(String focusFieldMarkupId,
boolean selectAll) {
return "document.getElementById('" + focusFieldMarkupId + "').focus();" +
(selectAll?("document.getElementById('" +
focusFieldMarkupId + "').select()"):"");
}
}
On Sat, Oct 10, 2009 at 11:11 PM, Igor Vaynberg
wrote:
> can you not just use a label whose model is the "..."
string?
>
> -igor
>
> On Sat, Oct 10, 2009 at 5:34 AM, Paul Huang wrote:
>> Suppose I write my own wicket component called XYZ that have the following
>> markup
>>
>>
>>
>>
>>
>>
>>
>> How can I inject some js code into this markup so when it's rendered in a
>> page, I got something like
>>
>>
>>
>>
>> var data=["abc", "efg"];
>> document.write(data[0]);
>>
>> .
>>
>>
>>
>> You may ask why I dont simply keep the js code into the component markup
>> "XYZ.html", this is because the value of "data" variable will be provided
by
>> the user and is not fixed.
>>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
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Re: how to inject arbitrary javascript code to a component markup?
For example I use this markup:
and associate it with simple class:
public class FocusScript extends Label {
public FocusScript(String id, String focusFieldMarkupId, boolean selectAll) {
super(id, getFocusScript(focusFieldMarkupId, selectAll));
setEscapeModelStrings(false);
}
@Override
protected void onComponentTag(ComponentTag tag) {
tag.put("language", "javascript");
tag.put("type", "text/javascript");
super.onComponentTag(tag);
}
@Override
protected void onComponentTagBody(MarkupStream markupStream,
ComponentTag openTag) {
super.onComponentTagBody(markupStream, openTag);
checkComponentTag(openTag, "script");
}
public static String getFocusScript(String focusFieldMarkupId,
boolean selectAll) {
return "document.getElementById('" + focusFieldMarkupId + "').focus();" +
(selectAll?("document.getElementById('" +
focusFieldMarkupId + "').select()"):"");
}
}
On Sat, Oct 10, 2009 at 11:11 PM, Igor Vaynberg wrote:
> can you not just use a label whose model is the "..." string?
>
> -igor
>
> On Sat, Oct 10, 2009 at 5:34 AM, Paul Huang wrote:
>> Suppose I write my own wicket component called XYZ that have the following
>> markup
>>
>>
>>
>>
>>
>>
>>
>> How can I inject some js code into this markup so when it's rendered in a
>> page, I got something like
>>
>>
>>
>>
>> var data=["abc", "efg"];
>> document.write(data[0]);
>>
>> .
>>
>>
>>
>> You may ask why I dont simply keep the js code into the component markup
>> "XYZ.html", this is because the value of "data" variable will be provided by
>> the user and is not fixed.
>>
>
> -
> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> For additional commands, e-mail: users-h...@wicket.apache.org
>
>
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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Re: how to inject arbitrary javascript code to a component markup?
can you not just use a label whose model is the "..." string? -igor On Sat, Oct 10, 2009 at 5:34 AM, Paul Huang wrote: > Suppose I write my own wicket component called XYZ that have the following > markup > > > > > > > > How can I inject some js code into this markup so when it's rendered in a > page, I got something like > > > > > var data=["abc", "efg"]; > document.write(data[0]); > > . > > > > You may ask why I dont simply keep the js code into the component markup > "XYZ.html", this is because the value of "data" variable will be provided by > the user and is not fixed. > - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
RE: how to inject arbitrary javascript code to a component markup?
Fatih Mehmet UCAR wrote: > > Add a div to your page like below: > > > > Insert title here > > > > > > > > Thanks Fatih, Indeed, I had "" in my test page, but somehow deleted it when posting my previous message. The same problem persists. -- View this message in context: http://www.nabble.com/how-to-inject-arbitrary-javascript-code-to-a-component-markup--tp25833726p25834544.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
RE: how to inject arbitrary javascript code to a component markup?
Add a div to your page like below:
Insert title here
-Original Message-
From: PaulH98 [mailto:paulhuan...@gmail.com]
Sent: 10 October 2009 14:58
To: users@wicket.apache.org
Subject: Re: how to inject arbitrary javascript code to a component markup?
McIlwee, Craig wrote:
>
> If your component is a MarkupContainer you can override
> getAssociatedMarkupStream(boolean) and build the markup on the fly. So
> maybe still have the HTML file that you read in as a template with some
> place holder string and in the override you replace the place holder with
> stuff you want to be assigned to the data variable. Then use a
> StringResourceStream to create a MarkupResourceStream, use
> SimpleMarkupLoader to create a Markup instance from the
> MarkupResourceStream, and finally create a MarkupStream with your Markup
> instance.
>
> One thing to note is that if your markup container has child components
> that will be updated via AJAX AND you don't have an HTML file (you build
> the entire string on the fly) then you may also have to override
> hasAssociatedMarkupStream and always return true else the component being
> updated won't be able to locate its parent.
>
> Craig
>
Here is the java code of my component "CategorySelectPanel" that extends
Panel
> public class CategorySelectPanel extends Panel{
> private static final long serialVersionUID = 1L;
> public CategorySelectPanel(String wicketId){
> super(wicketId);
> WebMarkupContainer cat0=new WebMarkupContainer("cat0");
> cat0.setOutputMarkupId(true);
> add(cat0);
> MarkupStream ms=getAssociatedMarkupStream(true);
> System.out.println(ms.toString());
>
> }
> }
>
and here is the associated markup file "CategorySelectPanel.html"
>
>
>
>
>
Now I have a simple test
>
> public class TestPage extends WebPage{
> public TestPage(){
> CategorySelectPanel a= new CategorySelectPanel("csp");
> add(a);
> }
> }
>
with the the following page html
>
>
>
>
> Insert title here
>
>
>
>
>
>
>
when I run the test, I got the following exception
> WicketMessage: Can't instantiate page using constructor public
> com.tree.TestPage()
>
> Root cause:
>
> java.lang.IllegalStateException: No Page found for component
> [MarkupContainer [Component id = csp]]
> at org.apache.wicket.Component.getPage(Component.java:1763)
> at
>
org.apache.wicket.markup.html.WebMarkupContainer.getMarkupType(WebMarkupCont
ainer.java:60)
> at
>
org.apache.wicket.markup.DefaultMarkupCacheKeyProvider.getCacheKey(DefaultMa
rkupCacheKeyProvider.java:57)
> at org.apache.wicket.markup.MarkupCache.getMarkup(MarkupCache.java:291)
> at
> org.apache.wicket.markup.MarkupCache.getMarkupStream(MarkupCache.java:216)
> at
>
org.apache.wicket.MarkupContainer.getAssociatedMarkupStream(MarkupContainer.
java:351)
> at com.tree.CategorySelectPanel.(CategorySelectPanel.java:37)
> at com.tree.TestPage.(TestPage.java:7)
>
>
Basically, "MarkupStream ms=getAssociatedMarkupStream(true) " caused this
exception. Can anyone shed some light on this? I am trying to Carig's
suggestion to get the MarkupStream and alter it with my stuff.
--
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http://www.nabble.com/how-to-inject-arbitrary-javascript-code-to-a-component
-markup--tp25833726p25834380.html
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Re: how to inject arbitrary javascript code to a component markup?
McIlwee, Craig wrote:
>
> If your component is a MarkupContainer you can override
> getAssociatedMarkupStream(boolean) and build the markup on the fly. So
> maybe still have the HTML file that you read in as a template with some
> place holder string and in the override you replace the place holder with
> stuff you want to be assigned to the data variable. Then use a
> StringResourceStream to create a MarkupResourceStream, use
> SimpleMarkupLoader to create a Markup instance from the
> MarkupResourceStream, and finally create a MarkupStream with your Markup
> instance.
>
> One thing to note is that if your markup container has child components
> that will be updated via AJAX AND you don't have an HTML file (you build
> the entire string on the fly) then you may also have to override
> hasAssociatedMarkupStream and always return true else the component being
> updated won't be able to locate its parent.
>
> Craig
>
Here is the java code of my component "CategorySelectPanel" that extends
Panel
> public class CategorySelectPanel extends Panel{
> private static final long serialVersionUID = 1L;
> public CategorySelectPanel(String wicketId){
> super(wicketId);
> WebMarkupContainer cat0=new WebMarkupContainer("cat0");
> cat0.setOutputMarkupId(true);
> add(cat0);
> MarkupStream ms=getAssociatedMarkupStream(true);
> System.out.println(ms.toString());
>
> }
> }
>
and here is the associated markup file "CategorySelectPanel.html"
>
>
>
>
>
Now I have a simple test
>
> public class TestPage extends WebPage{
> public TestPage(){
> CategorySelectPanel a= new CategorySelectPanel("csp");
> add(a);
> }
> }
>
with the the following page html
>
>
>
>
> Insert title here
>
>
>
>
>
>
>
when I run the test, I got the following exception
> WicketMessage: Can't instantiate page using constructor public
> com.tree.TestPage()
>
> Root cause:
>
> java.lang.IllegalStateException: No Page found for component
> [MarkupContainer [Component id = csp]]
> at org.apache.wicket.Component.getPage(Component.java:1763)
> at
> org.apache.wicket.markup.html.WebMarkupContainer.getMarkupType(WebMarkupContainer.java:60)
> at
> org.apache.wicket.markup.DefaultMarkupCacheKeyProvider.getCacheKey(DefaultMarkupCacheKeyProvider.java:57)
> at org.apache.wicket.markup.MarkupCache.getMarkup(MarkupCache.java:291)
> at
> org.apache.wicket.markup.MarkupCache.getMarkupStream(MarkupCache.java:216)
> at
> org.apache.wicket.MarkupContainer.getAssociatedMarkupStream(MarkupContainer.java:351)
> at com.tree.CategorySelectPanel.(CategorySelectPanel.java:37)
> at com.tree.TestPage.(TestPage.java:7)
>
>
Basically, "MarkupStream ms=getAssociatedMarkupStream(true) " caused this
exception. Can anyone shed some light on this? I am trying to Carig's
suggestion to get the MarkupStream and alter it with my stuff.
--
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Re: how to inject arbitrary javascript code to a component markup?
If your component is a MarkupContainer you can override getAssociatedMarkupStream(boolean) and build the markup on the fly. So maybe still have the HTML file that you read in as a template with some place holder string and in the override you replace the place holder with stuff you want to be assigned to the data variable. Then use a StringResourceStream to create a MarkupResourceStream, use SimpleMarkupLoader to create a Markup instance from the MarkupResourceStream, and finally create a MarkupStream with your Markup instance. One thing to note is that if your markup container has child components that will be updated via AJAX AND you don't have an HTML file (you build the entire string on the fly) then you may also have to override hasAssociatedMarkupStream and always return true else the component being updated won't be able to locate its parent. Craig _ From: Paul Huang [mailto:paulhuan...@gmail.com] To: users@wicket.apache.org Sent: Sat, 10 Oct 2009 08:34:15 -0400 Subject: how to inject arbitrary javascript code to a component markup? Suppose I write my own wicket component called XYZ that have the following markup How can I inject some js code into this markup so when it's rendered in a page, I got something like var data=["abc", "efg"]; document.write(data[0]); . You may ask why I dont simply keep the js code into the component markup "XYZ.html", this is because the value of "data" variable will be provided by the user and is not fixed.
how to inject arbitrary javascript code to a component markup?
Suppose I write my own wicket component called XYZ that have the following markup How can I inject some js code into this markup so when it's rendered in a page, I got something like var data=["abc", "efg"]; document.write(data[0]); . You may ask why I dont simply keep the js code into the component markup "XYZ.html", this is because the value of "data" variable will be provided by the user and is not fixed.
