/*
* @see org.eclipse.swt.dnd.DragSourceListener#dragStart
*/
@Override
public void dragStart(DragSourceEvent event) {
fEditorInputDatas = new ArrayList<EditorInputData>();
ISelection selection = fProvider.getSelection();
if (selection instanceof IStructuredSelection) {
IStructuredSelection structuredSelection = (IStructuredSelection) selection;
for (Iterator<?> iter = structuredSelection.iterator(); iter.hasNext(); ) {
Object element = iter.next();
IEditorInput editorInput = EditorUtility.getEditorInput(element);
if (editorInput != null && editorInput.getPersistable() != null) {
try {
String editorId = EditorUtility.getEditorID(editorInput);
// see org.eclipse.ui.internal.ide.EditorAreaDropAdapter.openNonExternalEditor(..):
IEditorRegistry editorReg = PlatformUI.getWorkbench().getEditorRegistry();
IEditorDescriptor editorDesc = editorReg.findEditor(editorId);
if (editorDesc != null && !editorDesc.isOpenExternal()) {
fEditorInputDatas.add(
EditorInputTransfer.createEditorInputData(editorId, editorInput));
}
} catch (PartInitException e) {
JavaPlugin.log(e);
}
}
}
}
event.doit = fEditorInputDatas.size() > 0;
}
public static void openEditor(IFile file, int offset, int length) {
IEditorPart ep = null;
try {
ep = EditorUtility.openInEditor(file);
} catch (PartInitException e) {
e.printStackTrace();
}
if (ep != null) EditorUtility.revealInEditor(ep, offset, length);
}
/**
* Links to editor (if option enabled)
*
* @param selection the selection
*/
private void linkToEditor(ISelection selection) {
Object obj = SelectionUtil.getSingleElement(selection);
if (obj != null) {
IEditorPart part = EditorUtility.isOpenInEditor(obj);
if (part != null) {
IWorkbenchPage page = getSite().getPage();
page.bringToTop(part);
if (obj instanceof IJavaElement) EditorUtility.revealInEditor(part, (IJavaElement) obj);
}
}
}
public IEditorPart openInEditor(Object object, boolean activate)
throws PartInitException, CoreException {
if (object instanceof IJavaElement) {
IEditorPart editor = EditorUtility.openInEditor(object, activate);
if (editor != null) {
EditorUtility.revealInEditor(editor, (IJavaElement) object);
}
return editor;
}
return null;
}
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
if (!(targetPart instanceof JavaEditor)) {
return;
}
JavaEditor javaEditor = (JavaEditor) targetPart;
javaProject = EditorUtility.getJavaProject(javaEditor.getEditorInput());
}
public JavaEditor openJavaEditor(IJavaElement javaElement) {
IEditorPart part = EditorUtility.isOpenInEditor(javaElement);
if (part == null) {
try {
part = JavaUI.openInEditor(javaElement);
} catch (PartInitException e) {
// ignore
} catch (JavaModelException e) {
// ignore
}
}
IWorkbenchPage page = JavaPlugin.getActivePage();
if (page != null && part != null) {
page.bringToTop(part);
}
if (part != null) {
part.setFocus();
}
if (part instanceof JavaEditor) {
return (JavaEditor) part;
}
return null;
}
@Override
public JavaContentAssistInvocationContext apply(IInvocationContext context) {
ICompilationUnit cu = context.getCompilationUnit();
int offset = context.getSelectionOffset();
try {
cu.codeComplete(
offset,
new CompletionRequestor() {
@Override
public void acceptContext(CompletionContext context) {
internalContext = context;
}
@Override
public boolean isExtendedContextRequired() {
return true;
}
@Override
public void accept(CompletionProposal proposal) {}
});
} catch (JavaModelException e) {
propagate(e);
}
JavaEditor editor = cast(EditorUtility.isOpenInEditor(cu));
ISourceViewer viewer = editor.getViewer();
return new JavaContentAssistInvocationContext(viewer, offset, editor) {
@Override
public CompletionContext getCoreContext() {
return internalContext;
}
};
}
/**
* 將所要變更的內容寫回Edit中 (New)
*
* @param msg
*/
protected void applyChange(ASTRewrite rewrite) {
try {
// 參考org.eclipse.jdt.internal.ui.text.correction.CorrectionMarkerResolutionGenerator run
// org.eclipse.jdt.internal.ui.text.correction.ChangeCorrectionProposal apply與performChange
ICompilationUnit cu = (ICompilationUnit) actOpenable;
IEditorPart part = EditorUtility.isOpenInEditor(cu);
IEditorInput input = part.getEditorInput();
IDocument doc =
JavaPlugin.getDefault().getCompilationUnitDocumentProvider().getDocument(input);
performChange(JavaPlugin.getActivePage().getActiveEditor(), doc, rewrite);
} catch (CoreException e) {
logger.error("[Core Exception] EXCEPTION ", e);
}
}
/**
* Note: This method is for internal use only. Clients should not call this method.
*
* @param cu The compilation unit to process
*/
public void run(ICompilationUnit cu) {
if (!ElementValidator.check(
cu, getShell(), ActionMessages.OrganizeImportsAction_error_title, fEditor != null)) return;
if (!ActionUtil.isProcessable(getShell(), cu)) return;
IEditingSupport helper = createViewerHelper();
try {
CodeGenerationSettings settings =
JavaPreferencesSettings.getCodeGenerationSettings(cu.getJavaProject());
if (fEditor == null && EditorUtility.isOpenInEditor(cu) == null) {
IEditorPart editor = EditorUtility.openInEditor(cu);
if (editor instanceof JavaEditor) {
fEditor = (JavaEditor) editor;
}
}
CompilationUnit astRoot =
JavaPlugin.getDefault().getASTProvider().getAST(cu, ASTProvider.WAIT_ACTIVE_ONLY, null);
AJOrganizeImportsOperation op =
new AJOrganizeImportsOperation(
cu,
astRoot,
settings.importIgnoreLowercase,
!cu.isWorkingCopy(),
true,
createChooseImportQuery());
IRewriteTarget target = null;
if (fEditor != null) {
target = (IRewriteTarget) fEditor.getAdapter(IRewriteTarget.class);
if (target != null) {
target.beginCompoundChange();
}
}
IProgressService progressService = PlatformUI.getWorkbench().getProgressService();
IRunnableContext context = getSite().getWorkbenchWindow();
if (context == null) {
context = progressService;
}
try {
registerHelper(helper);
progressService.runInUI(
context, new WorkbenchRunnableAdapter(op, op.getScheduleRule()), op.getScheduleRule());
IProblem parseError = op.getParseError();
if (parseError != null) {
String message =
Messages.format(
ActionMessages.OrganizeImportsAction_single_error_parse, parseError.getMessage());
MessageDialog.openInformation(
getShell(), ActionMessages.OrganizeImportsAction_error_title, message);
if (fEditor != null && parseError.getSourceStart() != -1) {
fEditor.selectAndReveal(
parseError.getSourceStart(),
parseError.getSourceEnd() - parseError.getSourceStart() + 1);
}
} else {
if (fEditor != null) {
setStatusBarMessage(getOrganizeInfo(op));
}
}
} catch (InvocationTargetException e) {
ExceptionHandler.handle(
e,
getShell(),
ActionMessages.OrganizeImportsAction_error_title,
ActionMessages.OrganizeImportsAction_error_message);
} catch (InterruptedException e) {
} finally {
deregisterHelper(helper);
if (target != null) {
target.endCompoundChange();
}
}
} catch (CoreException e) {
ExceptionHandler.handle(
e,
getShell(),
ActionMessages.OrganizeImportsAction_error_title,
ActionMessages.OrganizeImportsAction_error_message);
}
}