1a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)// Copyright 2014 The Chromium Authors. All rights reserved.
2a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be
3a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)// found in the LICENSE file.
4a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
5a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "ui/compositor/layer_tree_owner.h"
6a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
7a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)#include "ui/compositor/layer.h"
8a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
9a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)namespace ui {
10a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
11a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)namespace {
12a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
13a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)// Deletes |layer| and all its descendants.
14a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)void DeepDeleteLayers(Layer* layer) {
15a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)  std::vector<Layer*> children = layer->children();
16a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)  for (std::vector<Layer*>::const_iterator it = children.begin();
17a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)       it != children.end();
18a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)       ++it) {
19a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)    Layer* child = *it;
20a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)    DeepDeleteLayers(child);
21a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)  }
22a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)  delete layer;
23a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}
24a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
25a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}  // namespace
26a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
27a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)LayerTreeOwner::LayerTreeOwner(Layer* root) : root_(root) {}
28a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
29a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)LayerTreeOwner::~LayerTreeOwner() {
30a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)  if (root_)
31a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)    DeepDeleteLayers(root_);
32a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}
33a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)
34a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)}  // namespace ui
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