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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "services/ui/ws/threaded_image_cursors.h" | |
6 #include "base/bind.h" | |
sky
2017/06/27 19:58:57
newline between 5 and 6.
mfomitchev
2017/07/11 21:47:00
Done.
| |
7 #include "base/single_thread_task_runner.h" | |
8 #include "base/threading/thread_task_runner_handle.h" | |
9 #include "ui/platform_window/platform_window.h" | |
10 | |
11 namespace ui { | |
12 namespace ws { | |
13 namespace { | |
14 | |
15 // Executed on |resource_task_runner_|. | |
16 void SetDisplayOnResourceThread( | |
17 base::WeakPtr<ui::ImageCursors> image_cursors_weak_ptr, | |
18 const display::Display& display, | |
19 float scale_factor) { | |
20 if (image_cursors_weak_ptr) | |
21 image_cursors_weak_ptr->SetDisplay(display, scale_factor); | |
22 } | |
23 | |
24 void SetCursorSizeOnResourceThread( | |
25 base::WeakPtr<ui::ImageCursors> image_cursors_weak_ptr, | |
26 CursorSize cursor_size) { | |
27 if (image_cursors_weak_ptr) | |
28 image_cursors_weak_ptr->SetCursorSize(cursor_size); | |
29 } | |
30 | |
31 // Executed on |resource_task_runner_|. Sets cursor type on | |
32 // |image_cursors_weak_ptr|, and then schedules a task on |ws_task_runner| to | |
33 // set the corresponding PlatformCursor on the provided |platform_window|. | |
34 // |platform_window| pointer needs to be valid while | |
35 // |threaded_image_cursors_weak_ptr| is not invalidated. | |
36 void SetCursorOnResourceThread( | |
37 base::WeakPtr<ui::ImageCursors> image_cursors_weak_ptr, | |
38 ui::CursorType cursor_type, | |
39 ui::PlatformWindow* platform_window, | |
40 scoped_refptr<base::SingleThreadTaskRunner> ws_task_runner, | |
41 base::WeakPtr<ThreadedImageCursors> threaded_image_cursors_weak_ptr) { | |
42 if (image_cursors_weak_ptr) { | |
43 ui::Cursor native_cursor(cursor_type); | |
44 image_cursors_weak_ptr->SetPlatformCursor(&native_cursor); | |
45 ws_task_runner->PostTask( | |
sky
2017/06/27 19:58:57
It's worth a comment as to why you process setting
mfomitchev
2017/07/11 21:47:00
Done.
| |
46 FROM_HERE, base::Bind(&ThreadedImageCursors::SetCursorOnPlatformWindow, | |
47 threaded_image_cursors_weak_ptr, | |
48 native_cursor.platform(), platform_window)); | |
49 } | |
50 } | |
51 | |
52 } // namespace | |
53 | |
54 ThreadedImageCursors::ThreadedImageCursors( | |
55 scoped_refptr<base::SingleThreadTaskRunner>& resource_task_runner, | |
56 base::WeakPtr<ui::ImageCursors> image_cursors_weak_ptr) | |
57 : resource_task_runner_(resource_task_runner), | |
58 image_cursors_weak_ptr_(image_cursors_weak_ptr), | |
59 weak_ptr_factory_(this) { | |
60 DCHECK(resource_task_runner_); | |
61 ws_task_runner_ = base::ThreadTaskRunnerHandle::Get(); | |
62 } | |
63 | |
64 ThreadedImageCursors::~ThreadedImageCursors() {} | |
65 | |
66 void ThreadedImageCursors::SetDisplay(const display::Display& display, | |
67 float scale_factor) { | |
68 resource_task_runner_->PostTask( | |
69 FROM_HERE, base::Bind(&SetDisplayOnResourceThread, | |
70 image_cursors_weak_ptr_, display, scale_factor)); | |
71 } | |
72 | |
73 void ThreadedImageCursors::SetCursorSize(CursorSize cursor_size) { | |
74 resource_task_runner_->PostTask( | |
75 FROM_HERE, base::Bind(&SetCursorSizeOnResourceThread, | |
76 image_cursors_weak_ptr_, cursor_size)); | |
77 } | |
78 | |
79 void ThreadedImageCursors::SetCursor(ui::CursorType cursor_type, | |
80 ui::PlatformWindow* platform_window) { | |
81 resource_task_runner_->PostTask( | |
82 FROM_HERE, base::Bind(&SetCursorOnResourceThread, image_cursors_weak_ptr_, | |
83 cursor_type, platform_window, ws_task_runner_, | |
84 weak_ptr_factory_.GetWeakPtr())); | |
85 } | |
86 | |
87 void ThreadedImageCursors::SetCursorOnPlatformWindow( | |
88 ui::PlatformCursor platform_cursor, | |
89 ui::PlatformWindow* platform_window) { | |
90 platform_window->SetCursor(platform_cursor); | |
91 } | |
92 | |
93 } // namespace ws | |
94 } // namespace ui | |
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