This is for JWt. The translation to C++ is left as an exercise to the
reader. And maybe if someone contributes a nice C++ widget we may add
it to Wt (and JWt)?
Anyway, it's a nice example of how you can pimp a Wt application with
JS libraries.
BR,
Wim.
import eu.webtoolkit.jwt.WApplication;
import eu.webtoolkit.jwt.WContainerWidget;
import eu.webtoolkit.jwt.WTextArea;
public class CodeMirrorTextArea extends WContainerWidget {
private WTextArea textArea;
public CodeMirrorTextArea(WContainerWidget parent) {
super(parent);
textArea = new WTextArea(this);
WApplication app = WApplication.getInstance();
app.require(app.resolveRelativeUrl("codemirror-2.32/lib/codemirror.js"));
app.require(app.resolveRelativeUrl("codemirror-2.32/mode/groovy/groovy.js"));
//TODO:
//We save the editor state to the text area on each key stroke,
//it appears to be not a performance issue,
//however it might very well become one when editing larger
fragments of code.
//A better solution would be to save this state to the text
area only when
//the form is submitted, currently this is not yet possible in
Wt???.
String js =
"var e = " + textArea.getJsRef() + ";" +
"var cm = CodeMirror.fromTextArea(e, {" +
" onKeyEvent : function (editor, event) {" +
" editor.save();" +
" }," +
" lineNumbers: true" +
" });" +
"var self = " + getJsRef() + ";" +
"self.cm = cm;";
this.doJavaScript(js);
}
public CodeMirrorTextArea() {
this(null);
}
public void setText(String text) {
textArea.setText(text);
}
public String getText() {
return textArea.getText();
}
public void setMarker(int line, String htmlMarker) {
String js =
"var self = " + getJsRef() + ";" +
"self.cm.setMarker(" + line + ", " +
jsStringLiteral(htmlMarker +
"%N%") + ");";
this.doJavaScript(js);
}
public void clearMarker(int line) {
String js =
"var self = " + getJsRef() + ";" +
"self.cm.clearMarker(" + line + ");";
this.doJavaScript(js);
}
}
2012/9/4 Rob Van Dyck <rob.van.d...@gmail.com>:
> Wim,,
>
> I would also be interested in seeing a small example on how this is
> supposed to be done.
>
> Thanx and regards,
> Rob.
>
> On Mon, Sep 3, 2012 at 8:53 PM, Neil D'Souza <nxd...@yahoo.com> wrote:
>> Hi Wim,
>> If you can point me to the codemirror
>> example I will be happy to morph it into what I need for my app.
>>
>> Thanks for your help.
>>
>> Kind Regards,
>> Neil
>
> ________________________________
>> From: Wim Dumon <w...@emweb.be>
>> To: Neil D'Souza <nxd...@yahoo.com>; witty-interest@lists.sourceforge.net
>> Sent: Tuesday, September 4, 2012 12:01 AM
>> Subject: Re: [Wt-interest] [Wt Interest] Using CodeMirror with Wt
>>
>> Hello Neil,
>>
>> Is there a specific reason why you're using the widgetset mode, rather
>> than just writing a CodeMirror widget? We have recently used Code
>> Mirror in combination with Wt.
>>
>> BR,
>> Wim.
>
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