| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "ui/base/touch/touch_device.h" |
| |
| #include "base/android/context_utils.h" |
| #include "base/android/jni_array.h" |
| #include "base/logging.h" |
| #include "jni/TouchDevice_jni.h" |
| |
| using base::android::AttachCurrentThread; |
| using base::android::GetApplicationContext; |
| |
| namespace ui { |
| |
| TouchScreensAvailability GetTouchScreensAvailability() { |
| return TouchScreensAvailability::ENABLED; |
| } |
| |
| int MaxTouchPoints() { |
| return Java_TouchDevice_maxTouchPoints(AttachCurrentThread(), |
| GetApplicationContext()); |
| } |
| |
| std::pair<int, int> GetAvailablePointerAndHoverTypes() { |
| JNIEnv* env = AttachCurrentThread(); |
| std::vector<int> pointer_and_hover_types; |
| base::android::JavaIntArrayToIntVector( |
| env, Java_TouchDevice_availablePointerAndHoverTypes( |
| env, GetApplicationContext()) |
| .obj(), |
| &pointer_and_hover_types); |
| DCHECK_EQ(pointer_and_hover_types.size(), 2u); |
| return std::make_pair(pointer_and_hover_types[0], pointer_and_hover_types[1]); |
| } |
| |
| PointerType GetPrimaryPointerType(int available_pointer_types) { |
| if (available_pointer_types & POINTER_TYPE_COARSE) |
| return POINTER_TYPE_COARSE; |
| if (available_pointer_types & POINTER_TYPE_FINE) |
| return POINTER_TYPE_FINE; |
| DCHECK_EQ(available_pointer_types, POINTER_TYPE_NONE); |
| return POINTER_TYPE_NONE; |
| } |
| |
| HoverType GetPrimaryHoverType(int available_hover_types) { |
| if (available_hover_types & HOVER_TYPE_ON_DEMAND) |
| return HOVER_TYPE_ON_DEMAND; |
| if (available_hover_types & HOVER_TYPE_HOVER) |
| return HOVER_TYPE_HOVER; |
| DCHECK_EQ(available_hover_types, HOVER_TYPE_NONE); |
| return HOVER_TYPE_NONE; |
| } |
| |
| } // namespace ui |