/** @return the IFile corresponding to the given input, or null if none */
public static IFile getFile(IEditorInput editorInput) {
IFile file = null;
if (editorInput instanceof IFileEditorInput) {
IFileEditorInput fileEditorInput = (IFileEditorInput) editorInput;
file = fileEditorInput.getFile();
} else if (editorInput instanceof IPathEditorInput) {
IPathEditorInput pathInput = (IPathEditorInput) editorInput;
IWorkspaceRoot wsRoot = ResourcesPlugin.getWorkspace().getRoot();
if (wsRoot.getLocation().isPrefixOf(pathInput.getPath())) {
file = ResourcesPlugin.getWorkspace().getRoot().getFile(pathInput.getPath());
} else {
// Can't get an IFile for an arbitrary file on the file system; return null
}
} else if (editorInput instanceof IStorageEditorInput) {
file = null; // Can't get an IFile for an arbitrary IStorageEditorInput
} else if (editorInput instanceof IURIEditorInput) {
IURIEditorInput uriEditorInput = (IURIEditorInput) editorInput;
IWorkspaceRoot wsRoot = ResourcesPlugin.getWorkspace().getRoot();
URI uri = uriEditorInput.getURI();
String path = uri.getPath();
// Bug 526: uri.getHost() can be null for a local file URL
if (uri.getScheme().equals("file")
&& (uri.getHost() == null || uri.getHost().equals("localhost"))
&& !path.startsWith(wsRoot.getLocation().toOSString())) {
file = wsRoot.getFile(new Path(path));
}
}
return file;
}
/** @return This is the Path that the editor is editing. */
private IPath getPathFromInput(IEditorInput otherInput) {
IPath path = null;
if (otherInput instanceof IPathEditorInput) {
IPathEditorInput iPathEditorInput = (IPathEditorInput) otherInput;
try {
path = iPathEditorInput.getPath();
} catch (IllegalArgumentException e) {
// ignore: we may have the trace below inside the FileEditorInput.
// java.lang.IllegalArgumentException
// at org.eclipse.ui.part.FileEditorInput.getPath(FileEditorInput.java:208)
// at org.python.pydev.editor.PyEditTitle.getPathFromInput(PyEditTitle.java:751)
}
}
if (path == null) {
if (otherInput instanceof IFileEditorInput) {
IFileEditorInput iFileEditorInput = (IFileEditorInput) otherInput;
path = iFileEditorInput.getFile().getFullPath();
}
}
if (path == null) {
try {
if (otherInput instanceof IURIEditorInput) {
IURIEditorInput iuriEditorInput = (IURIEditorInput) otherInput;
path = Path.fromOSString(new File(iuriEditorInput.getURI()).toString());
}
} catch (Throwable e) {
// Ignore (IURIEditorInput not available on 3.2)
}
}
return path;
}
/**
* Performs this action.
*
* @param action the action proxy that handles the presentation portion of the action
*/
@Override
public void run(IAction action) {
IPathEditorInput originalInput = (IPathEditorInput) editor.getEditorInput();
IEditorInput input = createEditorInput(originalInput.getPath().toString());
// check if text editor plug-in is loaded
if (Platform.getBundle(IOperationsConstants.ID_TEXT_EDITOR_PLUGIN) != null) {
try {
page.closeEditor(editor, true);
page.openEditor(input, IOperationsConstants.ID_TEXT_EDITOR, true);
} catch (PartInitException e) {
MessageDialog.openWarning(
page.getWorkbenchWindow().getShell(),
Messages.OpenInTextEditorAction_0,
Messages.OpenInTextEditorAction_1);
}
} else {
MessageDialog.openError(
page.getWorkbenchWindow().getShell(),
Messages.OpenInTextEditorAction_0,
Messages.OpenInTextEditorAction_2);
}
}
/** @return This is the Path that the editor is editing. */
private IPath getPathFromInput(IEditorInput otherInput) {
IPath path = null;
if (otherInput instanceof IPathEditorInput) {
IPathEditorInput iPathEditorInput = (IPathEditorInput) otherInput;
path = iPathEditorInput.getPath();
}
if (path == null) {
if (otherInput instanceof IFileEditorInput) {
IFileEditorInput iFileEditorInput = (IFileEditorInput) otherInput;
path = iFileEditorInput.getFile().getFullPath();
}
}
if (path == null) {
try {
if (otherInput instanceof IURIEditorInput) {
IURIEditorInput iuriEditorInput = (IURIEditorInput) otherInput;
path = Path.fromOSString(new File(iuriEditorInput.getURI()).toString());
}
} catch (Throwable e) {
// Ignore (IURIEditorInput not available on 3.2)
}
}
return path;
}
@Override
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) {
IPath path = null;
try {
IEditorInput input = editor.getEditorInput();
if (input instanceof IPathEditorInput) {
IPathEditorInput pathInput = (IPathEditorInput) input;
path = pathInput.getPath();
}
} catch (NullPointerException npe) {
}
ArrayList<ICompletionProposal> results = new ArrayList<ICompletionProposal>();
if (path != null) {
String filename = path.toOSString();
IDocument document = viewer.getDocument();
CodeContext codeContext = codeContexts.get(filename);
@SuppressWarnings("unused")
int linenumber = 0;
try {
// the following starts on line 0?, so we add 1 to the result
linenumber = document.getLineOfOffset(offset) + 1;
} catch (BadLocationException e1) {
GocodePlugin.logError(e1);
}
if (codeContext == null) {
try {
codeContext = CodeContext.getCodeContext(getProjectFor(editor), filename, document.get());
} catch (IOException e) {
GocodePlugin.logError(e);
}
}
if (path != null) {
String fileName = path.toOSString();
List<String> completions =
client.getCompletions(getProjectFor(editor), fileName, document.get(), offset);
if (completions == null) {
completions = Collections.emptyList();
}
for (String string : completions) {
String prefix = "";
prefix = lastWord(document, offset);
int firstComma = string.indexOf(",,");
int secondComma = string.indexOf(",,", firstComma + 2);
if (firstComma != -1 && secondComma != -1) {
String type = string.substring(0, firstComma);
if ("PANIC".equals(type)) {
GocodePlugin.logError("PANIC from gocode - likely go/gocode version mismatch?");
continue;
}
String identifier = string.substring(firstComma + 2, secondComma);
if ("PANIC".equals(identifier)) {
GocodePlugin.logError("PANIC from gocode - likely go/gocode version mismatch?");
continue;
}
String spec = string.substring(secondComma + 2);
String descriptiveString = identifier + " : " + spec;
String description = codeContext.getDescriptionForName(identifier).trim();
IContextInformation info = new ContextInformation(description, description);
// MessageFormat.format(JavaEditorMessages.getString("CompletionProcessor.Proposal.ContextInfo.pattern"), new Object[] { fgProposals[i] })); //$NON-NLS-1$
Image image = defaultImage;
String substr = identifier.substring(prefix.length());
int replacementLength = identifier.length() - prefix.length();
if (descriptiveString != null && descriptiveString.contains(" : func")) {
if (codeContext.isMethodName(identifier)) {
image = privateFuncImage;
} else {
image = funcImage;
}
substr = identifier.substring(prefix.length()) + "()";
replacementLength++;
} else if (descriptiveString != null && descriptiveString.contains(" : interface")) {
image = interfaceImage;
} else if (descriptiveString != null && descriptiveString.contains(" : struct")) {
image = structImage;
} else if ("package".equals(type)) {
image = importImage;
substr = identifier.substring(prefix.length()) + ".";
replacementLength++;
} else {
if (substr != null
&& substr.length() > 0
&& Character.isUpperCase(substr.charAt(0))) {
image = publicVarImage;
} else {
image = privateVarImage;
}
}
// format the output
descriptiveString =
descriptiveString
.replace(" : func", " ")
.replace(" : interface", " ")
.replace(" : struct", " ")
.replace("(", "( ")
.replace(")", " )");
results.add(
new CompletionProposal(
identifier,
offset - prefix.length(),
prefix.length(),
identifier.length(),
image,
descriptiveString,
info,
description));
}
}
}
}
return results.toArray(new ICompletionProposal[] {});
}