1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/frame_host/frame_tree_node.h"
6
7 #include <queue>
8
9 #include "base/stl_util.h"
10 #include "content/browser/frame_host/navigator.h"
11 #include "content/browser/frame_host/render_frame_host_impl.h"
12
13 namespace content {
14
15 const int64 FrameTreeNode::kInvalidFrameId = -1;
16 int64 FrameTreeNode::next_frame_tree_node_id_ = 1;
17
FrameTreeNode(Navigator * navigator,RenderFrameHostDelegate * render_frame_delegate,RenderViewHostDelegate * render_view_delegate,RenderWidgetHostDelegate * render_widget_delegate,RenderFrameHostManager::Delegate * manager_delegate,int64 frame_id,const std::string & name)18 FrameTreeNode::FrameTreeNode(Navigator* navigator,
19 RenderFrameHostDelegate* render_frame_delegate,
20 RenderViewHostDelegate* render_view_delegate,
21 RenderWidgetHostDelegate* render_widget_delegate,
22 RenderFrameHostManager::Delegate* manager_delegate,
23 int64 frame_id,
24 const std::string& name)
25 : navigator_(navigator),
26 render_manager_(render_frame_delegate,
27 render_view_delegate,
28 render_widget_delegate,
29 manager_delegate),
30 frame_tree_node_id_(next_frame_tree_node_id_++),
31 frame_id_(frame_id),
32 frame_name_(name),
33 owns_render_frame_host_(true),
34 render_frame_host_(NULL) {
35 }
36
~FrameTreeNode()37 FrameTreeNode::~FrameTreeNode() {
38 if (owns_render_frame_host_)
39 delete render_frame_host_;
40 }
41
AddChild(scoped_ptr<FrameTreeNode> child)42 void FrameTreeNode::AddChild(scoped_ptr<FrameTreeNode> child) {
43 children_.push_back(child.release());
44 }
45
RemoveChild(FrameTreeNode * child)46 void FrameTreeNode::RemoveChild(FrameTreeNode* child) {
47 std::vector<FrameTreeNode*>::iterator iter;
48
49 for (iter = children_.begin(); iter != children_.end(); ++iter) {
50 if ((*iter) == child)
51 break;
52 }
53
54 if (iter != children_.end())
55 children_.erase(iter);
56 }
57
ResetForMainFrame(RenderFrameHostImpl * new_render_frame_host)58 void FrameTreeNode::ResetForMainFrame(
59 RenderFrameHostImpl* new_render_frame_host) {
60 owns_render_frame_host_ = false;
61 frame_id_ = kInvalidFrameId;
62 current_url_ = GURL();
63
64 // The children may not have been cleared if a cross-process navigation
65 // commits before the old process cleans everything up. Make sure the child
66 // nodes get deleted.
67 children_.clear();
68
69 render_frame_host_ = new_render_frame_host;
70 }
71
72 } // namespace content
73