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- // Copyright (c) 2012 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.
- #ifndef UI_BASE_POINTER_POINTER_DEVICE_H_
- #define UI_BASE_POINTER_POINTER_DEVICE_H_
- #include <tuple>
- #include "base/component_export.h"
- #include "build/build_config.h"
- #if BUILDFLAG(IS_ANDROID)
- #include <jni.h>
- #endif
- namespace ui {
- enum class TouchScreensAvailability {
- NONE, // No touch screens are present.
- ENABLED, // Touch screens are present and enabled.
- DISABLED, // Touch screens are present and disabled.
- };
- COMPONENT_EXPORT(UI_BASE)
- TouchScreensAvailability GetTouchScreensAvailability();
- // Returns the maximum number of simultaneous touch contacts supported
- // by the device. In the case of devices with multiple digitizers (e.g.
- // multiple touchscreens), the value MUST be the maximum of the set of
- // maximum supported contacts by each individual digitizer.
- // For example, suppose a device has 3 touchscreens, which support 2, 5,
- // and 10 simultaneous touch contacts, respectively. This returns 10.
- // http://www.w3.org/TR/pointerevents/#widl-Navigator-maxTouchPoints
- COMPONENT_EXPORT(UI_BASE) int MaxTouchPoints();
- // Bit field values indicating available pointer types. Identical to
- // blink::PointerType enums, enforced by compile-time assertions in
- // third_party/blink/public/common/web_preferences/web_preferences.cc.
- // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui.base
- // GENERATED_JAVA_PREFIX_TO_STRIP: POINTER_TYPE_
- enum PointerType {
- POINTER_TYPE_NONE = 1 << 0,
- POINTER_TYPE_FIRST = POINTER_TYPE_NONE,
- POINTER_TYPE_COARSE = 1 << 1,
- POINTER_TYPE_FINE = 1 << 2,
- POINTER_TYPE_LAST = POINTER_TYPE_FINE
- };
- // Bit field values indicating available hover types. Identical to
- // blink::HoverType enums, enforced by compile-time assertions in
- // third_party/blink/public/common/web_preferences/web_preferences.cc.
- // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui.base
- // GENERATED_JAVA_PREFIX_TO_STRIP: HOVER_TYPE_
- enum HoverType {
- HOVER_TYPE_NONE = 1 << 0,
- HOVER_TYPE_FIRST = HOVER_TYPE_NONE,
- HOVER_TYPE_HOVER = 1 << 1,
- HOVER_TYPE_LAST = HOVER_TYPE_HOVER
- };
- int GetAvailablePointerTypes();
- int GetAvailableHoverTypes();
- COMPONENT_EXPORT(UI_BASE)
- std::pair<int, int> GetAvailablePointerAndHoverTypes();
- COMPONENT_EXPORT(UI_BASE)
- void SetAvailablePointerAndHoverTypesForTesting(int available_pointer_types,
- int available_hover_types);
- COMPONENT_EXPORT(UI_BASE)
- PointerType GetPrimaryPointerType(int available_pointer_types);
- COMPONENT_EXPORT(UI_BASE)
- HoverType GetPrimaryHoverType(int available_hover_types);
- } // namespace ui
- #endif // UI_BASE_POINTER_POINTER_DEVICE_H_
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