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This commit is contained in:
Alexey Kudravtsev
2005-02-28 17:06:54 +03:00
parent 572a9bdba8
commit 4cb8ebea69
6 changed files with 220 additions and 100 deletions
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resources/src/idea/ActionManager.xml
+2
View File
@@ -243,6 +243,8 @@
<action id="CopyPaths" class="com.intellij.ide.actions.CopyPathsAction" text="C_opy Paths" description="Copy paths corresponding to selected files or directories to clipboard"/>
<action id="$Paste" class="com.intellij.ide.actions.PasteAction" text="_Paste" icon="/actions/menu-paste.png" description="Paste from clipboard"/>
<action id="PasteMultiple" class="com.intellij.openapi.editor.actions.MultiplePasteAction" text="Past_e..." description="Paste from recent clipboards"/>
<action id="CopyReference" class="com.intellij.ide.actions.CopyReferenceAction" text="Copy _Reference" description="Copy Java class/method/field reference"/>
<action id="PasteReference" class="com.intellij.ide.actions.PasteReferenceAction" text="Paste Re_ference" description="Paste reference to copied Java class/method/field"/>
<reference ref="EditorToggleColumnMode"/>
</group>
<separator/>
resources/src/idea/DefaultKeymap.xml
+6
View File
@@ -457,6 +457,12 @@
<keyboard-shortcut first-keystroke="control V"/>
<keyboard-shortcut first-keystroke="shift INSERT"/>
</action>
<action id="PasteReference">
<keyboard-shortcut first-keystroke="control alt shift V"/>
</action>
<action id="CopyReference">
<keyboard-shortcut first-keystroke="control alt shift C"/>
</action>
<action id="EditorPasteFromX11">
<mouse-shortcut keystroke="button2"/>
</action>
source/com/intellij/ide/actions/CopyReferenceAction.java
+94
View File
@@ -0,0 +1,94 @@
/**
* @author Alexey
*/
package com.intellij.ide.actions;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataConstants;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.markup.TextAttributes;
import com.intellij.openapi.editor.colors.EditorColorsManager;
import com.intellij.openapi.editor.colors.EditorColors;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.wm.ex.StatusBarEx;
import com.intellij.openapi.wm.WindowManager;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.psi.*;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.ide.util.PropertiesComponent;
import com.intellij.codeInsight.highlighting.HighlightManager;
public class CopyReferenceAction extends AnAction {
public void update(AnActionEvent e) {
DataContext dataContext = e.getDataContext();
Editor editor = (Editor)dataContext.getData(DataConstants.EDITOR);
boolean enabled = editor != null;
e.getPresentation().setEnabled(enabled);
}
public void actionPerformed(AnActionEvent e) {
DataContext dataContext = e.getDataContext();
Editor editor = (Editor)dataContext.getData(DataConstants.EDITOR);
Project project = (Project)dataContext.getData(DataConstants.PROJECT);
PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
PsiElement element = file.findElementAt(editor.getCaretModel().getOffset());
PsiMember member = PsiTreeUtil.getParentOfType(element, PsiMember.class);
String fqn;
fqn = elementToFqn(member);
PropertiesComponent.getInstance(project).setValue("REFERENCE_FQN",fqn);
final StatusBarEx statusBar = (StatusBarEx)WindowManager.getInstance().getStatusBar(project);
statusBar.setInfo("Reference to '"+fqn+"' has been copied.");
HighlightManager highlightManager = HighlightManager.getInstance(project);
EditorColorsManager manager = EditorColorsManager.getInstance();
TextAttributes attributes = manager.getGlobalScheme().getAttributes(EditorColors.SEARCH_RESULT_ATTRIBUTES);
PsiIdentifier nameIdentifier = member instanceof PsiClass ? ((PsiClass)member).getNameIdentifier() :
member instanceof PsiVariable ? ((PsiVariable)member).getNameIdentifier() :
((PsiMethod)member).getNameIdentifier();
highlightManager.addOccurrenceHighlights(editor, new PsiElement[]{nameIdentifier}, attributes, true, null);
}
public static String elementToFqn(final PsiElement element) {
final String fqn;
if (element instanceof PsiClass) {
fqn = ((PsiClass)element).getQualifiedName();
}
else if (element instanceof PsiMember) {
final PsiMember member = (PsiMember)element;
fqn = member.getContainingClass().getQualifiedName() + "#" + member.getName();
}
else if (element instanceof PsiFile) {
final PsiFile file = (PsiFile)element;
final VirtualFile virtualFile = file.getVirtualFile();
fqn = virtualFile == null ? file.getName() : FileUtil.toSystemDependentName(virtualFile.getPath());
}
else {
fqn = element.getClass().getName();
}
return fqn;
}
static PsiMember fqnToMember(final Project project, final String fqn) {
PsiClass aClass = PsiManager.getInstance(project).findClass(fqn, GlobalSearchScope.allScope(project));
PsiMember member;
if (aClass != null) {
member = aClass;
}
else {
String className = fqn.substring(0, fqn.indexOf("#"));
aClass = PsiManager.getInstance(project).findClass(className, GlobalSearchScope.allScope(project));
String memberName = fqn.substring(fqn.indexOf("#") + 1);
member = aClass.findFieldByName(memberName, false);
if (member == null) {
member = aClass.findMethodsByName(memberName, false)[0];
}
}
return member;
}
}
source/com/intellij/ide/util/gotoByName/ChooseByNameBase.java
+112 -92
View File
@@ -1,9 +1,13 @@
package com.intellij.ide.util.gotoByName;
import com.intellij.ide.DataManager;
import com.intellij.ide.actions.CopyReferenceAction;
import com.intellij.ide.actions.PasteReferenceAction;
import com.intellij.openapi.actionSystem.*;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.ModalityState;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.colors.EditorColorsManager;
import com.intellij.openapi.editor.colors.EditorColorsScheme;
import com.intellij.openapi.keymap.KeymapManager;
@@ -52,8 +56,8 @@ public abstract class ChooseByNameBase{
protected JScrollPane myListScrollPane; // Located in the layered pane
protected JList myList;
private DefaultListModel myListModel;
private ArrayList<Pair<String, Integer>> myHistory;
private ArrayList<Pair<String, Integer>> myFuture;
private List<Pair<String, Integer>> myHistory;
private List<Pair<String, Integer>> myFuture;
protected ChooseByNamePopupComponent.Callback myActionListener;
@@ -70,6 +74,7 @@ public abstract class ChooseByNameBase{
private static final String NOT_FOUND_CARD = "nfound";
private static final String CHECK_BOX_CARD = "chkbox";
static final int REBUILD_DELAY = 100;
private Editor myEditor;
private static class IgnoreCaseComparator implements Comparator<String> {
public int compare(String a, String b) {
@@ -79,8 +84,6 @@ public abstract class ChooseByNameBase{
private static final Comparator<String> UCS_COMPARATOR = new IgnoreCaseComparator();
/**
* @param initialText initial text which will be in the lookup text field
*/
@@ -114,7 +117,6 @@ public abstract class ChooseByNameBase{
return element;
}
}
return null;
}
@@ -161,8 +163,9 @@ public abstract class ChooseByNameBase{
* @param allowMultipleSelection
*/
protected void initUI(final ChooseByNamePopupComponent.Callback callback, final ModalityState modalityState, boolean allowMultipleSelection) {
myPreviouslyFocusedComponent = WindowManagerEx.getInstanceEx().getFocusedComponent(myProject);
myActionListener = callback;
//myTextFieldPanel = new JPanelProvider(new GridBagLayout());
myTextFieldPanel = new JPanelProvider();
myTextFieldPanel.setLayout(new BoxLayout(myTextFieldPanel, BoxLayout.Y_AXIS));
final JPanel hBox = new JPanel();
@@ -181,11 +184,11 @@ public abstract class ChooseByNameBase{
checkBoxPanel.setLayout(new BoxLayout(checkBoxPanel, BoxLayout.X_AXIS));
checkBoxPanel.add (new JLabel (" ("));
myCheckBox = new JCheckBox(myModel.getCheckBoxName() + " )");
myCheckBox = new JCheckBox(myModel.getCheckBoxName());
myCheckBox.setMnemonic(myModel.getCheckBoxMnemonic());
myCheckBox.setSelected(myModel.loadInitialCheckBoxState());
checkBoxPanel.add (myCheckBox);
checkBoxPanel.add (new JLabel (")"));
myCardContainer.add(checkBoxPanel, CHECK_BOX_CARD);
myCardContainer.add(new JLabel(" (" + myModel.getNotInMessage() + ")"), NOT_FOUND_MESSAGE_CARD);
@@ -213,12 +216,20 @@ public abstract class ChooseByNameBase{
myTextField = new MyTextField();
myTextField.setText(myInitialText);
myEditor = (Editor)DataManager.getInstance().getDataContext(myPreviouslyFocusedComponent).getData(DataConstants.EDITOR);
if (myEditor != null) {
myTextField.setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, Collections.EMPTY_SET);
final JPanel p = new JPanel(new BorderLayout());
final JLabel label = new JLabel("<html><body><center>Press <b>TAB</b> to paste the reference into editor.</center></body></html>");
label.setHorizontalAlignment(SwingConstants.CENTER);
p.add(label, BorderLayout.CENTER);
myTextFieldPanel.add(p);
}
myTextFieldPanel.add(myTextField);
EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
Font editorFont = new Font(scheme.getEditorFontName(), Font.PLAIN, scheme.getEditorFontSize());
myTextField.setFont(editorFont);
myTextFieldPanel.add(myTextField,
new GridBagConstraints(0, 1, 3, 1, 1, 0, GridBagConstraints.EAST, GridBagConstraints.HORIZONTAL,
new Insets(0, 0, 0, 0), 0, 0));
if (isCloseByFocusLost()) {
myTextField.addFocusListener(new FocusAdapter() {
@@ -248,26 +259,33 @@ public abstract class ChooseByNameBase{
myTextField.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (myListScrollPane.isVisible()) {
if (e.getKeyCode() == KeyEvent.VK_DOWN) {
if (!myListScrollPane.isVisible()) {
return;
}
final int keyCode = e.getKeyCode();
switch (keyCode) {
case KeyEvent.VK_TAB:
insertElement();
break;
case KeyEvent.VK_DOWN:
ListScrollingUtilEx.moveDown(myList, e.getModifiersEx());
}
else if (e.getKeyCode() == KeyEvent.VK_UP) {
break;
case KeyEvent.VK_UP:
ListScrollingUtilEx.moveUp(myList, e.getModifiersEx());
}
else if (e.getKeyCode() == KeyEvent.VK_PAGE_UP) {
break;
case KeyEvent.VK_PAGE_UP:
ListScrollingUtil.movePageUp(myList);
}
else if (e.getKeyCode() == KeyEvent.VK_PAGE_DOWN) {
break;
case KeyEvent.VK_PAGE_DOWN:
ListScrollingUtil.movePageDown(myList);
}
else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
if (myList.getSelectedValue() instanceof ExtraElem) {
break;
case KeyEvent.VK_ENTER:
if (myList.getSelectedValue() == OUR_EXTRA_ELEMENT) {
myMaximumListSizeLimit += MAXIMUM_LIST_SIZE_LIMIT;
rebuildList(myList.getSelectedIndex(), REBUILD_DELAY, null, ModalityState.current());
e.consume();
}
}
break;
}
}
});
@@ -290,13 +308,14 @@ public abstract class ChooseByNameBase{
}
if (e.getClickCount() == 2) {
if (myList.getSelectedValue() instanceof ExtraElem) {
if (myList.getSelectedValue() == OUR_EXTRA_ELEMENT) {
myMaximumListSizeLimit += MAXIMUM_LIST_SIZE_LIMIT;
rebuildList(myList.getSelectedIndex(), REBUILD_DELAY, null, ModalityState.current());
e.consume();
}
else
else {
close(true);
}
}
}
});
@@ -326,6 +345,16 @@ public abstract class ChooseByNameBase{
}
}
private void insertElement() {
final Object chosenElement = getChosenElement();
if (!(chosenElement instanceof PsiElement)) return;
if (myEditor == null) return;
final PsiElement element = (PsiElement)chosenElement;
final String fqn = CopyReferenceAction.elementToFqn(element);
PasteReferenceAction.doInsert(fqn, element, myEditor);
close(false);
}
private synchronized void ensureNamesLoaded(boolean checkboxState) {
int index = checkboxState ? 1 : 0;
if (myNames[index] != null) return;
@@ -389,7 +418,6 @@ public abstract class ChooseByNameBase{
KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0),
JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
myPreviouslyFocusedComponent = WindowManagerEx.getInstanceEx().getFocusedComponent(myProject);
if (myTextField.requestFocusInWindow()) {
myTextField.requestFocus();
}
@@ -435,7 +463,7 @@ public abstract class ChooseByNameBase{
final Runnable request = this;
LOG.info ("Rebuild " + hashCode() + " started");
final CalcElementsCallback callback = new CalcElementsCallback() {
public void run(final ArrayList<?> elements) {
public void run(final List<?> elements) {
synchronized (myRebuildMutex) {
LOG.info ("Rebuild callback " + hashCode() + " of " + request.hashCode() + " started");
ApplicationManager.getApplication().assertIsDispatchThread();
@@ -484,7 +512,7 @@ public abstract class ChooseByNameBase{
}
}
private void setElementsToList(int pos, ArrayList<?> elements) {
private void setElementsToList(int pos, List<?> elements) {
if (myDisposedFlag) return;
myListModel.clear();
if (elements.size() == 0) {
@@ -513,7 +541,7 @@ public abstract class ChooseByNameBase{
public Object getChosenElement() {
final Object[] elements = getChosenElements();
return (elements != null && elements.length == 1) ? elements[0] : null;
return elements != null && elements.length == 1 ? elements[0] : null;
}
protected Object[] getChosenElements() {
@@ -574,11 +602,9 @@ public abstract class ChooseByNameBase{
}
protected void processKeyEvent(KeyEvent e) {
{
final int caretPosition = getCaretPosition();
if (getCaretPosition() < myExactPrefixLen) {
myExactPrefixLen = caretPosition;
}
final int caretPosition = getCaretPosition();
if (getCaretPosition() < myExactPrefixLen) {
myExactPrefixLen = caretPosition;
}
final KeyStroke keyStroke = KeyStroke.getKeyStrokeForEvent(e);
@@ -601,13 +627,10 @@ public abstract class ChooseByNameBase{
if (myHistory.size() != 0) {
final String oldText = myTextField.getText();
final int oldPos = myList.getSelectedIndex();
//final String pattern = myTextField.getText();
//final Object current = myList.getSelectedValue();
final Pair<String, Integer> last = myHistory.remove(myHistory.size() - 1);
myTextField.setText(last.first);
myFuture.add(Pair.create(oldText, new Integer(oldPos)));
rebuildList(0, 0, null, ModalityState.current());
//myList.setSelectedIndex(last.second.intValue());
}
return;
}
@@ -620,7 +643,6 @@ public abstract class ChooseByNameBase{
myTextField.setText(next.first);
myHistory.add(Pair.create(oldText, new Integer(oldPos)));
rebuildList(0, 0, null, ModalityState.current());
//myList.setSelectedIndex(next.second.intValue());
}
return;
}
@@ -636,36 +658,35 @@ public abstract class ChooseByNameBase{
final int oldPos = myList.getSelectedIndex();
final String newPattern;
{
String commonPrefix = null;
if (list.size() != 0) {
for (int i = 0; i < list.size(); i++) {
final String string = list.get(i).toLowerCase();
if (commonPrefix == null) {
commonPrefix = string;
}
else {
while (commonPrefix.length() > 0) {
if (string.startsWith(commonPrefix)) {
break;
}
commonPrefix = commonPrefix.substring(0, commonPrefix.length() - 1);
}
if (commonPrefix.length() == 0) break;
}
String commonPrefix = null;
if (list.size() != 0) {
for (int i = 0; i < list.size(); i++) {
final String string = list.get(i).toLowerCase();
if (commonPrefix == null) {
commonPrefix = string;
}
commonPrefix = list.get(0).substring(0, commonPrefix.length());
for (int i = 1; i < list.size(); i++) {
final String string = list.get(i).substring(0, commonPrefix.length());
if (!string.equals(commonPrefix)) {
commonPrefix = commonPrefix.toLowerCase();
break;
else {
while (commonPrefix.length() > 0) {
if (string.startsWith(commonPrefix)) {
break;
}
commonPrefix = commonPrefix.substring(0, commonPrefix.length() - 1);
}
if (commonPrefix.length() == 0) break;
}
}
commonPrefix = list.get(0).substring(0, commonPrefix.length());
for (int i = 1; i < list.size(); i++) {
final String string = list.get(i).substring(0, commonPrefix.length());
if (!string.equals(commonPrefix)) {
commonPrefix = commonPrefix.toLowerCase();
break;
}
}
if (commonPrefix == null) commonPrefix = "";
newPattern = commonPrefix;
}
if (commonPrefix == null) commonPrefix = "";
newPattern = commonPrefix;
myHistory.add(Pair.create(oldText, new Integer(oldPos)));
myTextField.setText(newPattern);
myTextField.setCaretPosition(newPattern.length());
@@ -685,13 +706,10 @@ public abstract class ChooseByNameBase{
private final CalcElementsCallback myCallback;
private final ModalityState myModalityState;
//private boolean myIsTooLong;
private ArrayList<?> myElements = null;
private List<Object> myElements = null;
private volatile boolean [] myCancelled = new boolean[]{false};
private boolean myCanCancel = true;
//private boolean endsWithSpace;
//private boolean noUpperCase;
public CalcElementsThread(String pattern, boolean checkboxState, CalcElementsCallback callback, ModalityState modalityState) {
myPattern = pattern;
@@ -701,7 +719,7 @@ public abstract class ChooseByNameBase{
}
public void run() {
final ArrayList<Object> elements = new ArrayList<Object>();
final List<Object> elements = new ArrayList<Object>();
Runnable action = new Runnable() {
public void run() {
try {
@@ -723,8 +741,9 @@ public abstract class ChooseByNameBase{
} else {
myCard.show(myCardContainer, CHECK_BOX_CARD);
}
if (elements.size() == 0)
if (elements.size() == 0) {
myCard.show(myCardContainer, NOT_FOUND_CARD);
}
myElements = elements;
@@ -741,33 +760,32 @@ public abstract class ChooseByNameBase{
}
private void addElementsByPattern(ArrayList<Object> elementsArray, String pattern) { //throws ProcessCanceledException {
ArrayList<String> namesList = new ArrayList<String>();
boolean ov = getNamesByPattern(myCheckboxState, myCancelled, namesList, pattern);
if (myCancelled[0])
private void addElementsByPattern(List<Object> elementsArray, String pattern) {
List<String> namesList = new ArrayList<String>();
boolean overflow = getNamesByPattern(myCheckboxState, myCancelled, namesList, pattern);
if (myCancelled[0]) {
throw new ProcessCanceledException();
}
Collections.sort(namesList, UCS_COMPARATOR);
All:
for (int i = 0; i < namesList.size(); i++) {
if (myCancelled[0])
if (myCancelled[0]) {
throw new ProcessCanceledException();
final Object o = namesList.get(i);
final String name = (String)o;
}
final String name = namesList.get(i);
final Object[] elements = myModel.getElementsByName(name, myCheckboxState);
for (int j = 0; j < elements.length; j++) {
final Object element = elements[j];
elementsArray.add(element);
if (elementsArray.size() >= myMaximumListSizeLimit) {
ov = true;
overflow = true;
break All;
}
}
}
if (ov) {
if (overflow) {
elementsArray.add(OUR_EXTRA_ELEMENT);
}
}
@@ -781,13 +799,13 @@ public abstract class ChooseByNameBase{
private boolean getNamesByPattern(final boolean checkboxState,
final boolean[] cancelled,
final ArrayList<String> list,
final List<String> list,
final String pattern) throws ProcessCanceledException {
if (!isShowListForEmptyPattern()) {
LOG.assertTrue(pattern.length() > 0);
}
boolean ov = false;
boolean overflow = false;
final String[] names = checkboxState ? myNames[1] : myNames[0];
final Pair<String,String> pref_regex = buildRegexp(pattern);
final String regex = pref_regex.getSecond();
@@ -808,7 +826,7 @@ public abstract class ChooseByNameBase{
catch (PatternSyntaxException e) {
}
return ov;
return overflow;
}
private static boolean containsOnlyUppercaseLetters(String s) {
@@ -824,19 +842,22 @@ public abstract class ChooseByNameBase{
{
final int len = pattern.length ();
int i = 0;
while (i != len && (Character.isLetterOrDigit(pattern.charAt(i)) && (i == 0 || !Character.isUpperCase(pattern.charAt(i)))))
++ i;
while (i != len && (Character.isLetterOrDigit(pattern.charAt(i)) && (i == 0 || !Character.isUpperCase(pattern.charAt(i))))) {
++i;
}
pref = pattern.substring(0,i);
}
{
final int eol = pattern.indexOf ('\n');
if (eol != -1)
pattern = pattern.substring (0, eol);
if (eol != -1) {
pattern = pattern.substring(0, eol);
}
}
if (pattern.length() >= 80) {
pattern = pattern.substring(0, 80);
}
if (pattern.length () >= 80)
pattern = pattern.substring (0, 80);
final StringBuffer buffer = new StringBuffer();
boolean lastIsUppercase = false;
@@ -898,12 +919,11 @@ public abstract class ChooseByNameBase{
else if (lastIsUppercase) {
buffer.append("[a-z0-9]*");
}
final String regex = buffer.toString();
return Pair.create (pref, regex);
return Pair.create(pref, regex);
}
private static interface CalcElementsCallback {
void run(ArrayList<?> elements);
void run(List<?> elements);
}
}
source/com/intellij/ide/util/gotoByName/ChooseByNamePopup.java
+5 -7
View File
@@ -45,12 +45,10 @@ public class ChooseByNamePopup extends ChooseByNameBase implements ChooseByNameP
preferredScrollPaneSize.height = layeredPane.getHeight() - bounds.y;
}
{
if(preferredScrollPaneSize.width > layeredPane.getWidth() - bounds.x){
bounds.x = layeredPane.getX() + Math.max (1, layeredPane.getWidth()-preferredScrollPaneSize.width);
if(preferredScrollPaneSize.width > layeredPane.getWidth() - bounds.x){
preferredScrollPaneSize.width = layeredPane.getWidth() - bounds.x;
}
if (preferredScrollPaneSize.width > layeredPane.getWidth() - bounds.x) {
bounds.x = layeredPane.getX() + Math.max(1, layeredPane.getWidth() - preferredScrollPaneSize.width);
if (preferredScrollPaneSize.width > layeredPane.getWidth() - bounds.x) {
preferredScrollPaneSize.width = layeredPane.getWidth() - bounds.x;
}
}
@@ -117,7 +115,7 @@ public class ChooseByNamePopup extends ChooseByNameBase implements ChooseByNameP
// Return focus back to the previous focused component if we need to do it and
// previous focused componen is showing.
if (
(myPreviouslyFocusedComponent instanceof JComponent) &&
myPreviouslyFocusedComponent instanceof JComponent &&
myPreviouslyFocusedComponent.isShowing()
){
final JComponent _component = (JComponent)myPreviouslyFocusedComponent;
source/com/intellij/openapi/wm/ex/WindowManagerEx.java
+1 -1
View File
@@ -35,7 +35,7 @@ public abstract class WindowManagerEx extends WindowManager {
/**
* @param project may be <code>null</code> when no project is opened.
* @return focused component for the project. If project isn't specified then
* the method returns focused compoent in window which has no project.
* the method returns focused component in window which has no project.
* If there is no focused component at all then the method returns <code>null</code>.
*/
public abstract Component getFocusedComponent(Project project);