1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.idea.svn.dialogs.browserCache;
import com.intellij.util.NotNullFunction;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.idea.svn.dialogs.RepositoryBrowserComponent;
import org.jetbrains.idea.svn.dialogs.RepositoryTreeNode;
import javax.swing.tree.TreeNode;
import java.util.*;
public class KeepingExpandedExpander implements Expander {
private final Expander mySelectionExpander;
private final RepositoryBrowserComponent myBrowser;
private Map<String, ChildrenData> myThirdLevel;
private Collection<TreeNode> myExpanded;
public KeepingExpandedExpander(final RepositoryBrowserComponent browser, final Expander selectionInstaller) {
myBrowser = browser;
mySelectionExpander = selectionInstaller;
}
public KeepingExpandedExpander(final RepositoryBrowserComponent browser) {
this(browser, new KeepingSelectionExpander(browser));
}
public void onBeforeRefresh(final RepositoryTreeNode node) {
mySelectionExpander.onBeforeRefresh(node);
myThirdLevel = new HashMap<String, ChildrenData>();
myExpanded = new ArrayList<TreeNode>();
final Enumeration<TreeNode> children = node.children();
while (children.hasMoreElements()) {
final TreeNode treeNode = children.nextElement();
if (treeNode instanceof RepositoryTreeNode) {
final RepositoryTreeNode repositoryNode = (RepositoryTreeNode) treeNode;
final List<TreeNode> thirdLevelChildren = repositoryNode.getAllAlreadyLoadedChildren();
final String nodeName = repositoryNode.getSVNDirEntry().getName();
if (! thirdLevelChildren.isEmpty()) {
final boolean selfExpanded = myBrowser.isExpanded(repositoryNode);
myThirdLevel.put(nodeName, new ChildrenData(selfExpanded, thirdLevelChildren, repositoryNode.getChildrenLoadState()));
if (selfExpanded) {
myExpanded.addAll(myBrowser.getExpandedSubTree(repositoryNode));
}
}
}
}
}
public void onAfterRefresh(final RepositoryTreeNode node) {
final Enumeration<TreeNode> children = node.children();
while (children.hasMoreElements()) {
final RepositoryTreeNode treeNode = (RepositoryTreeNode) children.nextElement();
final String name = treeNode.getSVNDirEntry().getName();
final ChildrenData thirdLevelLoaded = myThirdLevel.get(name);
if (thirdLevelLoaded != null) {
treeNode.setAlienChildren(thirdLevelLoaded.getChildren(), thirdLevelLoaded.getChildrenState());
if (thirdLevelLoaded.isExpanded()) {
myBrowser.expandNode(treeNode);
}
}
}
for (TreeNode expandedNode : myExpanded) {
myBrowser.expandNode(expandedNode);
}
mySelectionExpander.onAfterRefresh(node);
}
public static class Factory implements NotNullFunction<RepositoryBrowserComponent, Expander> {
@NotNull
public Expander fun(final RepositoryBrowserComponent repositoryBrowserComponent) {
return new KeepingExpandedExpander(repositoryBrowserComponent);
}
}
private static class ChildrenData {
private final boolean myExpanded;
private final List<TreeNode> myChildren;
private final NodeLoadState myChildrenState;
private ChildrenData(final boolean expanded, final List<TreeNode> children, final NodeLoadState childrenState) {
myExpanded = expanded;
myChildren = children;
myChildrenState = childrenState;
}
public List<TreeNode> getChildren() {
return myChildren;
}
public NodeLoadState getChildrenState() {
return myChildrenState;
}
public boolean isExpanded() {
return myExpanded;
}
}
}
|
