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
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/browser/ui/cocoa/content_settings/cookies_tree_controller_bridge.h"
CookiesTreeControllerBridge::CookiesTreeControllerBridge(
CookiesTreeModel* model)
: model_(model),
cocoa_model_([CocoaNodeFromTreeNode(model_->GetRoot()) retain]) {
model_->AddObserver(this);
}
CookiesTreeControllerBridge::~CookiesTreeControllerBridge() {
model_->RemoveObserver(this);
}
// Notification that nodes were added to the specified parent.
void CookiesTreeControllerBridge::TreeNodesAdded(ui::TreeModel* model,
ui::TreeModelNode* parent,
int start,
int count) {
CocoaCookieTreeNode* cocoa_parent = FindCocoaNode(parent, nil);
NSMutableArray* cocoa_children = [cocoa_parent mutableChildren];
[cocoa_model_ willChangeValueForKey:@"children"];
CookieTreeNode* cookie_parent = static_cast<CookieTreeNode*>(parent);
for (int i = 0; i < count; ++i) {
CookieTreeNode* cookie_child = cookie_parent->GetChild(start + i);
CocoaCookieTreeNode* new_child = CocoaNodeFromTreeNode(cookie_child);
[cocoa_children addObject:new_child];
}
[cocoa_model_ didChangeValueForKey:@"children"];
}
// Notification that nodes were removed from the specified parent.
void CookiesTreeControllerBridge::TreeNodesRemoved(ui::TreeModel* model,
ui::TreeModelNode* parent,
int start,
int count) {
CocoaCookieTreeNode* cocoa_parent = FindCocoaNode(parent, nil);
NSMutableArray* cocoa_children = [cocoa_parent mutableChildren];
[cocoa_model_ willChangeValueForKey:@"children"];
for (int i = start + count - 1; i >= start; --i) {
[cocoa_children removeObjectAtIndex:i];
}
[cocoa_model_ didChangeValueForKey:@"children"];
}
// Notification that the contents of a node has changed.
void CookiesTreeControllerBridge::TreeNodeChanged(ui::TreeModel* model,
ui::TreeModelNode* node) {
[cocoa_model_ willChangeValueForKey:@"children"];
CocoaCookieTreeNode* changed_node = FindCocoaNode(node, nil);
[changed_node rebuild];
[cocoa_model_ didChangeValueForKey:@"children"];
}
CocoaCookieTreeNode* CookiesTreeControllerBridge::CocoaNodeFromTreeNode(
ui::TreeModelNode* node) {
CookieTreeNode* cookie_node = static_cast<CookieTreeNode*>(node);
return [[[CocoaCookieTreeNode alloc] initWithNode:cookie_node] autorelease];
}
// Does breadth-first search on the tree to find |node|. This method is most
// commonly used to find origin/folder nodes, which are at the first level off
// the root (hence breadth-first search).
CocoaCookieTreeNode* CookiesTreeControllerBridge::FindCocoaNode(
ui::TreeModelNode* target, CocoaCookieTreeNode* start) {
if (!start) {
start = cocoa_model_.get();
}
if ([start treeNode] == target) {
return start;
}
// Enqueue the root node of the search (sub-)tree.
std::queue<CocoaCookieTreeNode*> horizon;
horizon.push(start);
// Loop until we've looked at every node or we found the target.
while (!horizon.empty()) {
// Dequeue the item at the front.
CocoaCookieTreeNode* node = horizon.front();
horizon.pop();
// If this is the target node, report it up.
if ([node treeNode] == target)
return node;
// Add all child nodes to the queue for searching.
if (![node isLeaf]) {
NSArray* children = [node children];
for (CocoaCookieTreeNode* child in children) {
horizon.push(child);
}
}
}
return nil; // The node could not be found.
}
|
