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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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