/*
* Method declared in IAction.
*/
@Override
public final void run() {
DartElement inputElement = EditorUtility.getEditorInputJavaElement(fEditor, false);
if (!(inputElement instanceof SourceReference && inputElement.exists())) {
return;
}
SourceReference source = (SourceReference) inputElement;
SourceRange sourceRange;
try {
sourceRange = source.getSourceRange();
if (sourceRange == null || sourceRange.getLength() == 0) {
MessageDialog.openInformation(
fEditor.getEditorSite().getShell(),
SelectionActionMessages.StructureSelect_error_title,
SelectionActionMessages.StructureSelect_error_message);
return;
}
} catch (DartModelException e) {
}
ITextSelection selection = getTextSelection();
SourceRange newRange = getNewSelectionRange(createSourceRange(selection), source);
// Check if new selection differs from current selection
if (selection.getOffset() == newRange.getOffset()
&& selection.getLength() == newRange.getLength()) {
return;
}
fSelectionHistory.remember(newSourceRange(selection.getOffset(), selection.getLength()));
try {
fSelectionHistory.ignoreSelectionChanges();
fEditor.selectAndReveal(newRange.getOffset(), newRange.getLength());
} finally {
fSelectionHistory.listenToSelectionChanges();
}
}
protected static SourceRange getSelectedNodeSourceRange(SourceReference sr, DartNode nodeToSelect)
throws DartModelException {
int offset = nodeToSelect.getSourceStart();
int end =
Math.min(
sr.getSourceRange().getLength(),
nodeToSelect.getSourceStart() + nodeToSelect.getSourceLength() - 1);
return createSourceRange(offset, end);
}