ui/base/touch/touch_device.h - Issue 26764002: Chromium side of maxTouchPoints implementation.

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Side by Side Diff: ui/base/touch/touch_device.h

Issue 26764002: Chromium side of maxTouchPoints implementation. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: add TODO to kMaxTouchPointsUnknown. Created 7 years, 2 months ago

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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style license that can be	2 // Use of this source code is governed by a BSD-style license that can be

3 // found in the LICENSE file.	3 // found in the LICENSE file.

4	4

5 #ifndef UI_BASE_TOUCH_TOUCH_DEVICE_H_	5 #ifndef UI_BASE_TOUCH_TOUCH_DEVICE_H_

6 #define UI_BASE_TOUCH_TOUCH_DEVICE_H_	6 #define UI_BASE_TOUCH_TOUCH_DEVICE_H_

7	7

8 #include "ui/base/ui_export.h"	8 #include "ui/base/ui_export.h"

9	9

	10 // TODO(sblom): This is non-standard, and should be removed before

	11 // RuntimeEnabledFlags::PointerEventsMaxTouchPoints is marked stable.

	12 // Tracked by: http://crbug.com/308649

	13 const int kMaxTouchPointsUnknown = -1;
	sadrul 2013/10/21 02:27:22 This should be inside the ui namespace. This should be inside the ui namespace.
	14

10 namespace ui {	15 namespace ui {

11	16

12 // Returns true if a touch device is available.	17 // Returns true if a touch device is available.

13 UI_EXPORT bool IsTouchDevicePresent();	18 UI_EXPORT bool IsTouchDevicePresent();

14	19

	20 UI_EXPORT int MaxTouchPoints();
	sadrul 2013/10/21 02:27:22 Add a doc comment. There can be multiple touch de Add a doc comment. There can be multiple touch devices in use at the same time (e.g. an external touch-screen attached to a pixel device). Does this function add up the max-touch points for each touch-device? Please include this in the doc comment.
	21

15 } // namespace ui	22 } // namespace ui

16	23

17 #endif // UI_BASE_TOUCH_TOUCH_DEVICE_H_	24 #endif // UI_BASE_TOUCH_TOUCH_DEVICE_H_

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