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saving/restoring selection

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This commit is contained in:
Dmitry Avdeev
2012-10-10 14:09:28 +04:00
parent 9bc85c43c1
commit 6dddb3280e
1 changed files with 23 additions and 10 deletions
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platform/platform-api/src/com/intellij/ide/util/treeView/TreeState.java
+23 -10
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@@ -24,6 +24,7 @@ import com.intellij.util.ui.tree.TreeUtil;
import org.jdom.Element;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import javax.swing.*;
import javax.swing.tree.DefaultMutableTreeNode;
@@ -42,6 +43,7 @@ import java.util.List;
*/
public class TreeState implements JDOMExternalizable {
@NonNls private static final String PATH = "PATH";
@NonNls private static final String SELECTED = "SELECTED";
@NonNls private static final String PATH_ELEMENT = "PATH_ELEMENT";
@NonNls private static final String USER_OBJECT = "USER_OBJECT";
@NonNls public static final String CALLBACK = "Callback";
@@ -111,11 +113,16 @@ public class TreeState implements JDOMExternalizable {
@Override
public void readExternal(Element element) throws InvalidDataException {
myExpandedPaths.clear();
final List paths = element.getChildren(PATH);
readExternal(element, myExpandedPaths, PATH);
readExternal(element, mySelectedPaths, SELECTED);
}
private static void readExternal(Element element, List<List<PathElement>> list, String name) throws InvalidDataException {
list.clear();
final List paths = element.getChildren(name);
for (final Object path : paths) {
Element xmlPathElement = (Element)path;
myExpandedPaths.add(readPath(xmlPathElement));
list.add(readPath(xmlPathElement));
}
}
@@ -141,8 +148,13 @@ public class TreeState implements JDOMExternalizable {
@Override
public void writeExternal(Element element) throws WriteExternalException {
for (List<PathElement> path : myExpandedPaths) {
final Element pathElement = new Element(PATH);
writeExternal(element, myExpandedPaths, PATH);
writeExternal(element, mySelectedPaths, SELECTED);
}
private static void writeExternal(Element element, List<List<PathElement>> list, String name) throws WriteExternalException {
for (List<PathElement> path : list) {
final Element pathElement = new Element(name);
writeExternal(pathElement, path);
element.addContent(pathElement);
}
@@ -251,7 +263,7 @@ public class TreeState implements JDOMExternalizable {
}
private void applyExpanded(final TreeFacade tree, final Object root) {
tree.getIntialized().doWhenDone(new Runnable() {
tree.getInitialized().doWhenDone(new Runnable() {
@Override
public void run() {
tree.batch(new Progressive() {
@@ -302,6 +314,7 @@ public class TreeState implements JDOMExternalizable {
}
@Nullable
private static DefaultMutableTreeNode findMatchedChild(DefaultMutableTreeNode parent, PathElement pathElement) {
for (int j = 0; j < parent.getChildCount(); j++) {
@@ -327,6 +340,7 @@ public class TreeState implements JDOMExternalizable {
if (index >= parent.getChildCount()) {
index = parent.getChildCount()-1;
}
index = Math.max(0, index);
final TreeNode child = parent.getChildAt(index);
if (child instanceof DefaultMutableTreeNode) {
return (DefaultMutableTreeNode) child;
@@ -334,7 +348,6 @@ public class TreeState implements JDOMExternalizable {
}
return null;
}
private static boolean applyTo(final int positionInPath,
@@ -402,7 +415,7 @@ public class TreeState implements JDOMExternalizable {
}
interface TreeFacade {
ActionCallback getIntialized();
ActionCallback getInitialized();
ActionCallback expand(DefaultMutableTreeNode node);
void batch(Progressive progressive);
@@ -428,7 +441,7 @@ public class TreeState implements JDOMExternalizable {
}
@Override
public ActionCallback getIntialized() {
public ActionCallback getInitialized() {
final WeakReference<ActionCallback> ref = (WeakReference<ActionCallback>)myTree.getClientProperty(CALLBACK);
if (ref != null) {
final ActionCallback callback = ref.get();
@@ -452,7 +465,7 @@ public class TreeState implements JDOMExternalizable {
}
@Override
public ActionCallback getIntialized() {
public ActionCallback getInitialized() {
return myBuilder.getReady(this);
}