File: viewport_layers.h

package info (click to toggle)
chromium 139.0.7258.127-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 6,122,068 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (31 lines) | stat: -rw-r--r-- 947 bytes parent folder | download | duplicates (11) 
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
 
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_TREES_VIEWPORT_LAYERS_H_
#define CC_TREES_VIEWPORT_LAYERS_H_

#include "base/memory/ref_counted.h"
#include "cc/cc_export.h"
#include "cc/paint/element_id.h"

namespace cc {
class Layer;

// Viewport Layers are used to identify key layers to the compositor thread,
// so that it can perform viewport-based scrolling independently, such as
// for pinch-zoom or overscroll elasticity.
struct CC_EXPORT ViewportLayers {
  ViewportLayers();
  ~ViewportLayers();
  ElementId overscroll_elasticity_element_id;
  scoped_refptr<Layer> page_scale;
  scoped_refptr<Layer> inner_viewport_container;
  scoped_refptr<Layer> outer_viewport_container;
  scoped_refptr<Layer> inner_viewport_scroll;
  scoped_refptr<Layer> outer_viewport_scroll;
};

}  // namespace cc

#endif  // CC_TREES_VIEWPORT_LAYERS_H_