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1 // Copyright 2015 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 "components/view_manager/view_tree_host_connection.h" | |
6 | |
7 #include "components/view_manager/connection_manager.h" | |
8 #include "components/view_manager/view_tree_host_impl.h" | |
9 | |
10 namespace view_manager { | |
11 | |
12 ViewTreeHostConnection::ViewTreeHostConnection( | |
13 scoped_ptr<ViewTreeHostImpl> host_impl, | |
14 ConnectionManager* manager) | |
15 : host_(host_impl.Pass()), | |
16 tree_(nullptr), | |
17 connection_manager_(manager), | |
18 connection_closed_(false) { | |
19 } | |
20 | |
21 ViewTreeHostConnection::~ViewTreeHostConnection() { | |
22 // If this DCHECK fails then something has tried to delete this object without | |
23 // calling CloseConnection. | |
24 DCHECK(connection_closed_); | |
25 } | |
26 | |
27 | |
28 void ViewTreeHostConnection::CloseConnection() { | |
29 // A connection error will trigger the display to close and so we want to make | |
30 // sure we signal the ConnectionManager only once. | |
31 if (connection_closed_) | |
32 return; | |
33 // We have to shut down the focus system for this host before destroying the | |
34 // host, as destruction of the view tree will attempt to change focus. | |
35 host_->DestroyFocusController(); | |
36 connection_manager()->OnHostConnectionClosed(this); | |
37 connection_closed_ = true; | |
38 delete this; | |
39 } | |
40 | |
41 ViewTreeImpl* ViewTreeHostConnection::GetViewTree() { | |
42 return tree_; | |
43 } | |
44 | |
45 void ViewTreeHostConnection::OnDisplayInitialized() { | |
46 } | |
47 | |
48 void ViewTreeHostConnection::OnDisplayClosed() { | |
49 CloseConnection(); | |
50 } | |
51 | |
52 ViewTreeHostConnectionImpl::ViewTreeHostConnectionImpl( | |
53 mojo::InterfaceRequest<mojo::ViewTreeHost> request, | |
54 scoped_ptr<ViewTreeHostImpl> host_impl, | |
55 mojo::ViewTreeClientPtr client, | |
56 ConnectionManager* manager) | |
57 : ViewTreeHostConnection(host_impl.Pass(), manager), | |
58 binding_(view_tree_host(), request.Pass()), | |
59 client_(client.Pass()) { | |
60 } | |
61 | |
62 ViewTreeHostConnectionImpl::~ViewTreeHostConnectionImpl() { | |
63 } | |
64 | |
65 void ViewTreeHostConnectionImpl::OnDisplayInitialized() { | |
66 connection_manager()->AddHost(this); | |
67 set_view_tree(connection_manager()->EmbedAtView( | |
68 kInvalidConnectionId, view_tree_host()->root_view()->id(), | |
69 client_.Pass())); | |
70 } | |
71 | |
72 } // namespace view_manager | |
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