@Override
public void actionPerformed(AnActionEvent e) {
DataContext dataContext = e.getDataContext();
final Project project = CommonDataKeys.PROJECT.getData(dataContext);
if (project == null) return;
PsiDocumentManager.getInstance(project).commitAllDocuments();
Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
UsageTarget[] usageTargets = UsageView.USAGE_TARGETS_KEY.getData(dataContext);
if (usageTargets != null) {
FileEditor fileEditor = PlatformDataKeys.FILE_EDITOR.getData(dataContext);
if (fileEditor != null) {
usageTargets[0].findUsagesInEditor(fileEditor);
}
} else if (editor == null) {
Messages.showMessageDialog(
project,
FindBundle.message("find.no.usages.at.cursor.error"),
CommonBundle.getErrorTitle(),
Messages.getErrorIcon());
} else {
HintManager.getInstance()
.showErrorHint(editor, FindBundle.message("find.no.usages.at.cursor.error"));
}
}
public Object getData(String dataId) {
if (LangDataKeys.PSI_ELEMENT.is(dataId)) {
TreePath path = getSelectedUniquePath();
if (path == null) return null;
DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
Object userObject = node.getUserObject();
if (!(userObject instanceof AbstractTreeNode)) return null;
AbstractTreeNode descriptor = (AbstractTreeNode) userObject;
Object element = descriptor.getValue();
if (element instanceof StructureViewTreeElement) {
element = ((StructureViewTreeElement) element).getValue();
}
if (!(element instanceof PsiElement)) return null;
if (!((PsiElement) element).isValid()) return null;
return element;
}
if (LangDataKeys.PSI_ELEMENT_ARRAY.is(dataId)) {
return convertToPsiElementsArray(getSelectedElements());
}
if (PlatformDataKeys.FILE_EDITOR.is(dataId)) {
return myFileEditor;
}
if (PlatformDataKeys.CUT_PROVIDER.is(dataId)) {
return myCopyPasteDelegator.getCutProvider();
}
if (PlatformDataKeys.COPY_PROVIDER.is(dataId)) {
return myCopyPasteDelegator.getCopyProvider();
}
if (PlatformDataKeys.PASTE_PROVIDER.is(dataId)) {
return myCopyPasteDelegator.getPasteProvider();
}
if (PlatformDataKeys.NAVIGATABLE.is(dataId)) {
Object[] selectedElements = getSelectedTreeElements();
if (selectedElements == null || selectedElements.length == 0) return null;
if (selectedElements[0] instanceof Navigatable) {
return selectedElements[0];
}
}
if (PlatformDataKeys.HELP_ID.is(dataId)) {
return getHelpID();
}
return super.getData(dataId);
}
