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
content / common / cursors / webcursor_aura.cc [blame]
// 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.
#include "base/check_op.h"
#include "build/build_config.h"
#include "content/common/cursors/webcursor.h"
#include "ui/base/cursor/cursor.h"
#include "ui/base/cursor/cursor_factory.h"
#include "ui/base/cursor/mojom/cursor_type.mojom-shared.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/wm/core/cursor_util.h"
namespace content {
gfx::NativeCursor WebCursor::GetNativeCursor() {
if (cursor_.type() == ui::mojom::CursorType::kCustom) {
if (!custom_cursor_) {
SkBitmap bitmap = cursor_.custom_bitmap();
gfx::Point hotspot = cursor_.custom_hotspot();
#if BUILDFLAG(IS_CHROMEOS_LACROS)
// In lacros, cursor should not be scaled to device scale
// factor because device scale factor is not always integer
// which could cause rounding errors. We should keep the
// image scale factor and handle the actual scaling in ash.
// Cursor rotation is also handled in ash.
float cursor_image_scale = cursor_.image_scale_factor();
#else
float cursor_image_scale = device_scale_factor_;
wm::ScaleAndRotateCursorBitmapAndHotpoint(GetCursorScaleFactor(&bitmap),
rotation_, &bitmap, &hotspot);
#endif
custom_cursor_ = ui::Cursor::NewCustom(
std::move(bitmap), std::move(hotspot), cursor_image_scale);
custom_cursor_->SetPlatformCursor(
ui::CursorFactory::GetInstance()->CreateImageCursor(
custom_cursor_->type(), custom_cursor_->custom_bitmap(),
custom_cursor_->custom_hotspot(),
custom_cursor_->image_scale_factor()));
}
return *custom_cursor_;
}
return cursor_.type();
}
#if !BUILDFLAG(IS_CHROMEOS_ASH)
// Ash has its own UpdateDisplayInfoForWindow that takes rotation into account.
void WebCursor::UpdateDisplayInfoForWindow(aura::Window* window) {
float preferred_scale = display::Screen::GetScreen()
->GetPreferredScaleFactorForWindow(window)
.value_or(1.0f);
if (device_scale_factor_ == preferred_scale) {
return;
}
device_scale_factor_ = preferred_scale;
custom_cursor_.reset();
}
// Ash also has extra calculations for scale factor (taking max cursor size
// into account).
float WebCursor::GetCursorScaleFactor(SkBitmap* bitmap) {
DCHECK_NE(0, cursor_.image_scale_factor());
return device_scale_factor_ / cursor_.image_scale_factor();
}
#endif
} // namespace content