gfx/2d/Helpers.h@97036ab72558
gfx/2d/Helpers.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #ifndef MOZILLA_GFX_2D_HELPERS_H_
7 #define MOZILLA_GFX_2D_HELPERS_H_
9 #include "2D.h"
11 namespace mozilla {
12 namespace gfx {
14 class AutoSaveTransform
15 {
16 public:
17 AutoSaveTransform(DrawTarget *aTarget)
18 : mDrawTarget(aTarget),
19 mOldTransform(aTarget->GetTransform())
20 {
21 }
22 ~AutoSaveTransform()
23 {
24 mDrawTarget->SetTransform(mOldTransform);
25 }
27 private:
28 RefPtr<DrawTarget> mDrawTarget;
29 Matrix mOldTransform;
30 };
32 } // namespace gfx
33 } // namespace mozilla
35 #endif // MOZILLA_GFX_2D_HELPERS_H_
