| CompletionProposal offset [message #210177] |
Tue, 11 March 2008 07:41  |
Eclipse User |
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Originally posted by: alexjaquet.gmail.com
Can you explain me what mean the replacement offset of a
CompletionProposal ?
I've the following code yet that pop up the content assist but once a
select one item one list I'm getting an exception (code is after the
stack trace)
java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException
at
org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocu ment.replaceText(JobSafeStructuredDocument.java:117)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.replaceText(BasicStructuredDocument.java:2390)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.replace(BasicStructuredDocument.java:2353)
at
org.eclipse.jface.text.contentassist.CompletionProposal.appl y(CompletionProposal.java:90)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .insertProposal(CompletionProposalPopup.java:811)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .insertSelectedProposalWithMask(CompletionProposalPopup.java :757)
at
org.eclipse.jface.text.contentassist.CompletionProposalPopup .verifyKey(CompletionProposalPopup.java:1164)
at
org.eclipse.jface.text.contentassist.ContentAssistant$Intern alListener.verifyKey(ContentAssistant.java:787)
at
org.eclipse.jface.text.TextViewer$VerifyKeyListenersManager. verifyKey(TextViewer.java:460)
at
org.eclipse.swt.custom.StyledTextListener.handleEvent(Styled TextListener.java:60)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:7 06)
at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.j ava:5052)
at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.j ava:4800)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:975)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:971)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1285)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:3772)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3672 )
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:291)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4351 )
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:22 64)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3291)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 19)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:289)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:106)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:153)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .runApplication(EclipseAppLauncher.java:106)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .start(EclipseAppLauncher.java:76)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:363)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 504)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443)
at org.eclipse.equinox.launcher.Main.run(Main.java:1169)
at org.eclipse.equinox.launcher.Main.main(Main.java:1144)
Caused by: java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at org.eclipse.jface.text.GapTextStore.arrayCopy(GapTextStore.j ava:348)
at org.eclipse.jface.text.GapTextStore.reallocate(GapTextStore. java:320)
at org.eclipse.jface.text.GapTextStore.adjustGap(GapTextStore.j ava:222)
at org.eclipse.jface.text.GapTextStore.replace(GapTextStore.jav a:195)
at
org.eclipse.wst.sse.core.internal.text.StructuredDocumentTex tStore.replace(StructuredDocumentTextStore.java:168)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.updateDocumentData(BasicStructuredDocument.java:2662)
at
org.eclipse.wst.sse.core.internal.text.StructuredDocumentReP arser.reparse(StructuredDocumentReParser.java:1350)
at
org.eclipse.wst.sse.core.internal.text.StructuredDocumentReP arser.reparse(StructuredDocumentReParser.java:1284)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.updateModel(BasicStructuredDocument.java:2685)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.internalReplaceText(BasicStructuredDocument.java:1918)
at
org.eclipse.wst.sse.core.internal.text.BasicStructuredDocume nt.replaceText(BasicStructuredDocument..java:2394)
at
org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocu ment.access$0(JobSafeStructuredDocument.java:1)
at
org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocu ment$1.run(JobSafeStructuredDocument.java:98)
at
org.eclipse.wst.sse.ui.EditorExecutionContext.execute(Editor ExecutionContext.java:42)
at
org.eclipse.wst.sse.core.internal.text.JobSafeStructuredDocu ment.replaceText(JobSafeStructuredDocument.java:109)
... 51 more
Here is my code
/**
* Constructor
*/
public CustomContentAssistProcessor () {
IPath path = Path.fromPortableString(XGUI_DTD);;
try {
InputStreamReader reader = new
InputStreamReader(FileLocator.find(PageUIPlugin.getDefault() .getBundle(),
path,null).openStream());
tags = loadDtd(reader);
}catch (Exception ex) {
}
}
/**
* Compute the completion proposals
*
* @param viewer
* The viewer
* @param offset
* The offset of the element typed
* @return ICompletionProposal [] returns an array of proposal
*/
public ICompletionProposal[] computeCompletionProposals(ITextViewer
viewer, int offset) {
List<ICompletionProposal> result = new ArrayList<ICompletionProposal>();
ICompletionProposal[] completionProposals = new
ICompletionProposal[tags.size()];
for (int i = 0; i < tags.size();i++) {
String tag = tags.get(i);
completionProposals[i]=new CompletionProposal(tag,tag.length(),1,5);
}
result.addAll(Arrays.asList(completionProposals));
return result.toArray(new ICompletionProposal[result.size()]);
}
/**
* Loads a list of element from a dtd file from the given path.
* @param path
* The path to the file
* @return List<String> returns a list of element included inside the dtd
*/
private List<String> loadDtd(InputStreamReader input) {
List<String> result = new ArrayList<String>();
try {
DTDParser parser = new DTDParser(input, true);
DTD dtd = parser.parse();
Enumeration e = dtd.elements.elements();
while (e.hasMoreElements()) {
DTDElement elem = (DTDElement) e.nextElement();
result.add(elem.name);
}
}catch (IOException ex) {
System.out.println(ex);
}
return result;
}
/**
* Compute the context information.
*
* @param viewer
* The viewer
* @param offset
* The offset of the element typed
* @return IContextInformation [] returns an array of contextual
information
*/
public IContextInformation[] computeContextInformation(ITextViewer
viewer, int offset) {
return null;
}
/**
* Gets the compute activation charachters.
*
* @return char [] returns an array of activation characters
*/
public char[] getCompletionProposalAutoActivationCharacters() {
return new char[] {'<'};
}
/**
* Gets the context information auto activation characters.
*
* @return char [] returns an array of activation characters
*
*/
public char[] getContextInformationAutoActivationCharacters() {
return null;
}
/**
* Gets the error message.
*
* @return String returns the error message
*/
public String getErrorMessage() {
return null;
}
/**
* Gets the context information validator.
*
* @return IContextInformationValidator returns the context
information validator
*/
public IContextInformationValidator getContextInformationValidator() {
// TODO Auto-generated method stub
return null;
}
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| Re: CompletionProposal offset [message #210233 is a reply to message #210177] |
Wed, 12 March 2008 02:36  |
| Eclipse User |
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Alexandre Jaquet wrote:
> Can you explain me what mean the replacement offset of a
> CompletionProposal ?
It the start offset within the text document where the proposal will
be applied. It must be a valid offset greater than zero and less
than the document's length. The cursor position value must also be
a valid, after insertion, when added to the replacement offset.
---
Nitin Dahyabhai
Eclipse WTP Source Editing
IBM Rational
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