blob: befe59e04aaf06956f71ae94fcd0ef37ce30c90c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// Copyright 2016 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.
#ifndef CC_LAYERS_LAYER_LIST_IMPL_H_
#define CC_LAYERS_LAYER_LIST_IMPL_H_
#include <stdint.h>
#include <unordered_map>
#include "cc/base/cc_export.h"
#include "cc/layers/layer_lists.h"
namespace cc {
class AnimationRegistrar;
class LayerTreeHostImpl;
typedef LayerTreeHostImpl LayerListHostImpl;
// This class will eventually replace LayerTreeImpl.
//
// There is certainly some unfortunate ambiguity with LayerImplList and
// OwnedLayerImplList, but this should be temporary. OwnedLayerImplList is used
// solely for the children of a LayerImpl and this will cease to be a thing as
// we move away from the layer hierarchy. The LayerImplList, however, does get
// used a fair bit to describe a list of LayerImpl*'s. I.e., an unowned layer
// list. In the medium term, I'd like to rename this LayerImplPtrList and, in
// the fullness of time, a LayerPtrList once Layer disappears.
class CC_EXPORT LayerListImpl {
public:
explicit LayerListImpl(LayerListHostImpl* host_impl);
~LayerListImpl();
AnimationRegistrar* GetAnimationRegistrar() const;
LayerImpl* LayerById(int id) const;
// These should be called by LayerImpl's ctor/dtor.
void RegisterLayer(LayerImpl* layer);
void UnregisterLayer(LayerImpl* layer);
size_t NumLayers();
LayerImpl* FindActiveLayerById(int id);
LayerImpl* FindPendingLayerById(int id);
// TODO(vollick): once we've built compositor worker on top of animations,
// then this association of id to element layers will not be necessary. The
// association will instead be maintained via the animation.
void AddToElementMap(LayerImpl* layer);
void RemoveFromElementMap(LayerImpl* layer);
// TODO(thakis): Consider marking this CC_EXPORT once we understand
// http://crbug.com/575700 better.
struct ElementLayers {
// Transform and opacity mutations apply to this layer.
LayerImpl* main = nullptr;
// Scroll mutations apply to this layer.
LayerImpl* scroll = nullptr;
};
// TODO(vollick): this should be removed as well.
ElementLayers GetMutableLayers(uint64_t element_id);
private:
bool IsActiveList() const;
bool IsPendingList() const;
// TODO(vollick): Remove after compositor worker is built on animations.
using ElementLayersMap = std::unordered_map<uint64_t, ElementLayers>;
ElementLayersMap element_layers_map_;
using LayerIdMap = std::unordered_map<int, LayerImpl*>;
LayerIdMap layer_id_map_;
LayerListHostImpl* layer_list_host_;
scoped_ptr<OwnedLayerImplList> layer_;
};
} // namespace cc
#endif // CC_LAYERS_LAYER_LIST_IMPL_H_
|
