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
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_SNAPSHOT_SNAPSHOT_H_
#define UI_SNAPSHOT_SNAPSHOT_H_
#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/memory/ref_counted_memory.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/snapshot/snapshot_export.h"
namespace gfx {
class Rect;
class Image;
class Size;
}
// Utility functions to grab snapshots of views and windows. These functions do
// no security checks, so these are useful for debugging purposes where no
// BrowserProcess instance is available (ie. tests), and other user-driven
// scenarios.
namespace ui {
using GrabSnapshotImageCallback = base::OnceCallback<void(gfx::Image snapshot)>;
using GrabSnapshotDataCallback =
base::OnceCallback<void(scoped_refptr<base::RefCountedMemory> data)>;
// These functions take a snapshot of the specified view or window, within
// `source_rect`, specified in layer space coordinates (DIP for desktop,
// physical pixels for Android).
//
// Returns the snapshot via the provided `callback`. In case of an error, an
// empty image (`gfx::Image::IsEmpty()`) will be returned.
SNAPSHOT_EXPORT void GrabWindowSnapshot(gfx::NativeWindow window,
const gfx::Rect& source_rect,
GrabSnapshotImageCallback callback);
SNAPSHOT_EXPORT void GrabViewSnapshot(gfx::NativeView view,
const gfx::Rect& source_rect,
GrabSnapshotImageCallback callback);
// Takes a snapshot as with `GrabWindowSnapshot()` and scales it to
// `target_size` (in physical pixels).
//
// Returns the snapshot via the provided `callback`. In case of an error, an
// empty image (`gfx::Image::IsEmpty()`) will be returned.
SNAPSHOT_EXPORT void GrabWindowSnapshotAndScale(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
const gfx::Size& target_size,
GrabSnapshotImageCallback callback);
// Takes a snapshot as with `GrabWindowSnapshot()` and encodes it as PNG data.
//
// Returns the data via the provided `callback`. In case of an error, a null
// pointer will be returned.
SNAPSHOT_EXPORT void GrabWindowSnapshotAsPNG(gfx::NativeWindow window,
const gfx::Rect& source_rect,
GrabSnapshotDataCallback callback);
// Takes a snapshot as with `GrabWindowSnapshot()` and encodes it as JPEG data.
//
// Returns the data via the provided `callback`. In case of an error, a null
// pointer will be returned.
SNAPSHOT_EXPORT void GrabWindowSnapshotAsJPEG(
gfx::NativeWindow window,
const gfx::Rect& source_rect,
GrabSnapshotDataCallback callback);
} // namespace ui
#endif // UI_SNAPSHOT_SNAPSHOT_H_
|
