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// Copyright 2015 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.
#include "components/mus/view_tree_host_connection.h"
#include "components/mus/connection_manager.h"
#include "components/mus/view_tree_host_impl.h"
namespace mus {
ViewTreeHostConnection::ViewTreeHostConnection(
scoped_ptr<ViewTreeHostImpl> host_impl,
ConnectionManager* manager)
: host_(host_impl.Pass()),
tree_(nullptr),
connection_manager_(manager),
connection_closed_(false) {}
ViewTreeHostConnection::~ViewTreeHostConnection() {
// If this DCHECK fails then something has tried to delete this object without
// calling CloseConnection.
DCHECK(connection_closed_);
}
void ViewTreeHostConnection::CloseConnection() {
// A connection error will trigger the display to close and so we want to make
// sure we signal the ConnectionManager only once.
if (connection_closed_)
return;
// We have to shut down the focus system for this host before destroying the
// host, as destruction of the view tree will attempt to change focus.
host_->DestroyFocusController();
connection_manager()->OnHostConnectionClosed(this);
connection_closed_ = true;
delete this;
}
ViewTreeImpl* ViewTreeHostConnection::GetViewTree() {
return tree_;
}
void ViewTreeHostConnection::OnDisplayInitialized() {}
void ViewTreeHostConnection::OnDisplayClosed() {
CloseConnection();
}
ViewTreeHostConnectionImpl::ViewTreeHostConnectionImpl(
mojo::InterfaceRequest<mojo::ViewTreeHost> request,
scoped_ptr<ViewTreeHostImpl> host_impl,
mojo::ViewTreeClientPtr client,
ConnectionManager* manager)
: ViewTreeHostConnection(host_impl.Pass(), manager),
binding_(view_tree_host(), request.Pass()),
client_(client.Pass()) {}
ViewTreeHostConnectionImpl::~ViewTreeHostConnectionImpl() {}
void ViewTreeHostConnectionImpl::OnDisplayInitialized() {
connection_manager()->AddHost(this);
set_view_tree(connection_manager()->EmbedAtView(
kInvalidConnectionId, view_tree_host()->root_view()->id(),
mojo::ViewTree::ACCESS_POLICY_EMBED_ROOT, client_.Pass()));
}
} // namespace mus
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