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41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef UI_GFX_ANDROID_VIEW_CONFIGURATION_H_
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#define UI_GFX_ANDROID_VIEW_CONFIGURATION_H_
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#include <jni.h>
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#include "ui/gfx/gfx_export.h"
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namespace gfx {
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// Provides access to Android's ViewConfiguration for gesture-related constants.
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// Note: All methods may be safely called from any thread.
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class GFX_EXPORT ViewConfiguration {
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public:
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static int GetDoubleTapTimeoutInMs();
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static int GetLongPressTimeoutInMs();
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static int GetTapTimeoutInMs();
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// Dimensionless coefficient of friction.
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static float GetScrollFriction();
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static int GetMaximumFlingVelocityInPixelsPerSecond();
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static int GetMinimumFlingVelocityInPixelsPerSecond();
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static int GetTouchSlopInPixels();
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static int GetDoubleTapSlopInPixels();
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static int GetMinScalingSpanInPixels();
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static int GetMinScalingTouchMajorInPixels();
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// Registers methods with JNI and returns true if succeeded.
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static bool RegisterViewConfiguration(JNIEnv* env);
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};
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} // namespace gfx
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#endif // UI_GFX_ANDROID_VIEW_CONFIGURATION_H_
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