private static void initializeHighlightRange(IEditorPart editorPart) {
if (editorPart instanceof ITextEditor) {
IAction toggleAction =
editorPart
.getEditorSite()
.getActionBars()
.getGlobalActionHandler(
ITextEditorActionDefinitionIds.TOGGLE_SHOW_SELECTED_ELEMENT_ONLY);
boolean enable = toggleAction != null;
if (enable && editorPart instanceof DartEditor) {
enable =
DartToolsPlugin.getDefault()
.getPreferenceStore()
.getBoolean(PreferenceConstants.EDITOR_SHOW_SEGMENTS);
} else {
enable = enable && toggleAction.isEnabled() && toggleAction.isChecked();
}
if (enable) {
if (toggleAction instanceof TextEditorAction) {
// Reset the action
((TextEditorAction) toggleAction).setEditor(null);
// Restore the action
((TextEditorAction) toggleAction).setEditor((ITextEditor) editorPart);
} else {
// Uncheck
toggleAction.run();
// Check
toggleAction.run();
}
}
}
}
/**
* Implementation of the <code>IUpdate</code> prototype method discovers the operation through the
* current editor's <code>ITextOperationTarget</code> adapter, and sets the enabled state
* accordingly.
*/
public void update() {
super.update();
if (!canModifyEditor()) {
setEnabled(false);
return;
}
ITextEditor editor = getTextEditor();
if (fOperationTarget == null && editor != null)
fOperationTarget = (ITextOperationTarget) editor.getAdapter(ITextOperationTarget.class);
boolean isEnabled =
(fOperationTarget != null
&& fOperationTarget.canDoOperation(ITextOperationTarget.PREFIX)
&& fOperationTarget.canDoOperation(ITextOperationTarget.STRIP_PREFIX));
setEnabled(isEnabled);
}
/* (non-Javadoc)
* @see org.eclipse.ui.texteditor.IUpdate#update()
*/
@Override
public void update() {
super.update();
if (!isReadOnlyOperation() && !canModifyEditor()) {
setEnabled(false);
return;
}
ITextEditor editor = getTextEditor();
if (fOperationTarget == null && editor != null && fOperationCode != -1)
fOperationTarget = (ITextOperationTarget) editor.getAdapter(ITextOperationTarget.class);
boolean isEnabled =
(fOperationTarget != null && fOperationTarget.canDoOperation(fOperationCode));
setEnabled(isEnabled);
}
@Override
public void run() {
super.run();
final ISelection sel = getSelection();
if (sel == null || sel.isEmpty() || !(sel instanceof ITextSelection)) {
return;
}
if (!validateEditorInputState()) {
return;
}
final ITextEditor textEditor = getTextEditor();
final IDocument document =
textEditor.getDocumentProvider().getDocument(textEditor.getEditorInput());
final ITextSelection selection = extendSelectionToWholeLines(document, (ITextSelection) sel);
final ITextSelection getSelection = getTextSelection(document, selection);
String text;
OtpErlangObject r1 = null;
try {
text = document.get(getSelection.getOffset(), getSelection.getLength());
// call erlang, with selection within text
r1 =
callErlang(selection.getOffset() - getSelection.getOffset(), selection.getLength(), text);
} catch (final Exception e) {
e.printStackTrace();
}
final String newText = Util.stringValue(r1);
if (newText == null) {
final Status status =
new Status(
IStatus.ERROR,
ErlangCore.PLUGIN_ID,
ErlangStatus.INTERNAL_ERROR.getValue(),
"indent returned " + r1 + " instead of a string",
null);
ErlLogger.error("INTERNAL ERROR: indent returned " + r1 + " instead of a string");
ErrorDialog.openError(
textEditor.getSite().getShell(),
ActionMessages.IndentAction_error_message,
String.valueOf(r1),
status);
return;
}
final int startLine = selection.getStartLine();
final int endLine = selection.getEndLine();
final int nLines = endLine - startLine + 1;
final Runnable runnable =
new Runnable() {
@Override
public void run() {
final IRewriteTarget target =
(IRewriteTarget) textEditor.getAdapter(IRewriteTarget.class);
if (target != null) {
target.beginCompoundChange();
if (nLines > 1) {
target.setRedraw(false);
}
}
try {
// ErlLogger.debug("'"+newText+"'");
if (!document.get(selection.getOffset(), selection.getLength()).equals(newText)) {
document.replace(selection.getOffset(), selection.getLength(), newText);
}
selectAndReveal(selection.getOffset(), newText.length());
} catch (final BadLocationException e) {
ErlLogger.warn(e);
}
if (target != null) {
target.endCompoundChange();
if (nLines > 1) {
target.setRedraw(true);
}
}
}
};
if (nLines > 50) {
final Display display =
textEditor.getEditorSite().getWorkbenchWindow().getShell().getDisplay();
BusyIndicator.showWhile(display, runnable);
} else {
runnable.run();
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.texteditor.TextEditorAction#setEditor(org.eclipse.ui.texteditor.ITextEditor)
*/
@Override
public void setEditor(ITextEditor editor) {
super.setEditor(editor);
fOperationTarget = null;
}