872db4f11e
Native doesn't ever actually care about the attributes of keys, so move all of it up into the managed layer and move all of the key names down so they're defined once. Change-Id: Ic8ded13ce050b2b98744735ff50d11e8d882d7d5
643 lines
19 KiB
C++
643 lines
19 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LIBINPUT_INPUT_H
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#define _LIBINPUT_INPUT_H
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/**
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* Native input event structures.
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*/
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#include <android/input.h>
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#include <utils/BitSet.h>
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#include <utils/KeyedVector.h>
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#include <utils/RefBase.h>
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#include <utils/String8.h>
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#include <utils/Timers.h>
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#include <utils/Vector.h>
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/*
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* Additional private constants not defined in ndk/ui/input.h.
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*/
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enum {
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/* Signifies that the key is being predispatched */
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AKEY_EVENT_FLAG_PREDISPATCH = 0x20000000,
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/* Private control to determine when an app is tracking a key sequence. */
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AKEY_EVENT_FLAG_START_TRACKING = 0x40000000,
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/* Key event is inconsistent with previously sent key events. */
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AKEY_EVENT_FLAG_TAINTED = 0x80000000,
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};
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enum {
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/* Motion event is inconsistent with previously sent motion events. */
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AMOTION_EVENT_FLAG_TAINTED = 0x80000000,
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};
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enum {
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/* Used when a motion event is not associated with any display.
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* Typically used for non-pointer events. */
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ADISPLAY_ID_NONE = -1,
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/* The default display id. */
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ADISPLAY_ID_DEFAULT = 0,
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};
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enum {
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/*
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* Indicates that an input device has switches.
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* This input source flag is hidden from the API because switches are only used by the system
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* and applications have no way to interact with them.
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*/
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AINPUT_SOURCE_SWITCH = 0x80000000,
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};
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enum {
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/**
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* Constants for LEDs. Hidden from the API since we don't actually expose a way to interact
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* with LEDs to developers
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*
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* NOTE: If you add LEDs here, you must also add them to InputEventLabels.h
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*/
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ALED_NUM_LOCK = 0x00,
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ALED_CAPS_LOCK = 0x01,
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ALED_SCROLL_LOCK = 0x02,
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ALED_COMPOSE = 0x03,
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ALED_KANA = 0x04,
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ALED_SLEEP = 0x05,
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ALED_SUSPEND = 0x06,
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ALED_MUTE = 0x07,
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ALED_MISC = 0x08,
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ALED_MAIL = 0x09,
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ALED_CHARGING = 0x0a,
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ALED_CONTROLLER_1 = 0x10,
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ALED_CONTROLLER_2 = 0x11,
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ALED_CONTROLLER_3 = 0x12,
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ALED_CONTROLLER_4 = 0x13,
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};
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/* Maximum number of controller LEDs we support */
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#define MAX_CONTROLLER_LEDS 4
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/*
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* SystemUiVisibility constants from View.
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*/
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enum {
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ASYSTEM_UI_VISIBILITY_STATUS_BAR_VISIBLE = 0,
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ASYSTEM_UI_VISIBILITY_STATUS_BAR_HIDDEN = 0x00000001,
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};
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/*
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* Maximum number of pointers supported per motion event.
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* Smallest number of pointers is 1.
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* (We want at least 10 but some touch controllers obstensibly configured for 10 pointers
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* will occasionally emit 11. There is not much harm making this constant bigger.)
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*/
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#define MAX_POINTERS 16
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/*
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* Maximum pointer id value supported in a motion event.
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* Smallest pointer id is 0.
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* (This is limited by our use of BitSet32 to track pointer assignments.)
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*/
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#define MAX_POINTER_ID 31
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/*
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* Declare a concrete type for the NDK's input event forward declaration.
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*/
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struct AInputEvent {
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virtual ~AInputEvent() { }
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};
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/*
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* Declare a concrete type for the NDK's input device forward declaration.
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*/
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struct AInputDevice {
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virtual ~AInputDevice() { }
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};
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namespace android {
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#ifdef HAVE_ANDROID_OS
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class Parcel;
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#endif
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/*
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* Flags that flow alongside events in the input dispatch system to help with certain
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* policy decisions such as waking from device sleep.
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*
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* These flags are also defined in frameworks/base/core/java/android/view/WindowManagerPolicy.java.
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*/
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enum {
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/* These flags originate in RawEvents and are generally set in the key map.
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* NOTE: If you want a flag to be able to set in a keylayout file, then you must add it to
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* InputEventLabels.h as well. */
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POLICY_FLAG_WAKE = 0x00000001,
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POLICY_FLAG_VIRTUAL = 0x00000002,
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POLICY_FLAG_FUNCTION = 0x00000004,
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POLICY_FLAG_RAW_MASK = 0x0000ffff,
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/* These flags are set by the input dispatcher. */
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// Indicates that the input event was injected.
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POLICY_FLAG_INJECTED = 0x01000000,
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// Indicates that the input event is from a trusted source such as a directly attached
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// input device or an application with system-wide event injection permission.
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POLICY_FLAG_TRUSTED = 0x02000000,
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// Indicates that the input event has passed through an input filter.
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POLICY_FLAG_FILTERED = 0x04000000,
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// Disables automatic key repeating behavior.
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POLICY_FLAG_DISABLE_KEY_REPEAT = 0x08000000,
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/* These flags are set by the input reader policy as it intercepts each event. */
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// Indicates that the device was in an interactive state when the
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// event was intercepted.
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POLICY_FLAG_INTERACTIVE = 0x20000000,
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// Indicates that the event should be dispatched to applications.
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// The input event should still be sent to the InputDispatcher so that it can see all
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// input events received include those that it will not deliver.
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POLICY_FLAG_PASS_TO_USER = 0x40000000,
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};
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/*
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* Pointer coordinate data.
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*/
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struct PointerCoords {
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enum { MAX_AXES = 14 }; // 14 so that sizeof(PointerCoords) == 64
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// Bitfield of axes that are present in this structure.
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uint64_t bits;
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// Values of axes that are stored in this structure packed in order by axis id
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// for each axis that is present in the structure according to 'bits'.
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float values[MAX_AXES];
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inline void clear() {
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BitSet64::clear(bits);
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}
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bool isEmpty() const {
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return BitSet64::isEmpty(bits);
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}
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float getAxisValue(int32_t axis) const;
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status_t setAxisValue(int32_t axis, float value);
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void scale(float scale);
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void applyOffset(float xOffset, float yOffset);
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inline float getX() const {
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return getAxisValue(AMOTION_EVENT_AXIS_X);
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}
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inline float getY() const {
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return getAxisValue(AMOTION_EVENT_AXIS_Y);
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}
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#ifdef HAVE_ANDROID_OS
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status_t readFromParcel(Parcel* parcel);
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status_t writeToParcel(Parcel* parcel) const;
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#endif
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bool operator==(const PointerCoords& other) const;
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inline bool operator!=(const PointerCoords& other) const {
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return !(*this == other);
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}
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void copyFrom(const PointerCoords& other);
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private:
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void tooManyAxes(int axis);
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};
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/*
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* Pointer property data.
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*/
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struct PointerProperties {
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// The id of the pointer.
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int32_t id;
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// The pointer tool type.
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int32_t toolType;
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inline void clear() {
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id = -1;
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toolType = 0;
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}
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bool operator==(const PointerProperties& other) const;
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inline bool operator!=(const PointerProperties& other) const {
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return !(*this == other);
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}
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void copyFrom(const PointerProperties& other);
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};
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/*
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* Input events.
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*/
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class InputEvent : public AInputEvent {
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public:
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virtual ~InputEvent() { }
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virtual int32_t getType() const = 0;
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inline int32_t getDeviceId() const { return mDeviceId; }
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inline int32_t getSource() const { return mSource; }
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inline void setSource(int32_t source) { mSource = source; }
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protected:
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void initialize(int32_t deviceId, int32_t source);
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void initialize(const InputEvent& from);
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int32_t mDeviceId;
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int32_t mSource;
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};
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/*
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* Key events.
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*/
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class KeyEvent : public InputEvent {
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public:
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virtual ~KeyEvent() { }
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virtual int32_t getType() const { return AINPUT_EVENT_TYPE_KEY; }
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inline int32_t getAction() const { return mAction; }
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inline int32_t getFlags() const { return mFlags; }
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inline void setFlags(int32_t flags) { mFlags = flags; }
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inline int32_t getKeyCode() const { return mKeyCode; }
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inline int32_t getScanCode() const { return mScanCode; }
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inline int32_t getMetaState() const { return mMetaState; }
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inline int32_t getRepeatCount() const { return mRepeatCount; }
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inline nsecs_t getDownTime() const { return mDownTime; }
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inline nsecs_t getEventTime() const { return mEventTime; }
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static const char* getLabel(int32_t keyCode);
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static int32_t getKeyCodeFromLabel(const char* label);
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void initialize(
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int32_t deviceId,
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int32_t source,
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int32_t action,
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int32_t flags,
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int32_t keyCode,
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int32_t scanCode,
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int32_t metaState,
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int32_t repeatCount,
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nsecs_t downTime,
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nsecs_t eventTime);
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void initialize(const KeyEvent& from);
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protected:
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int32_t mAction;
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int32_t mFlags;
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int32_t mKeyCode;
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int32_t mScanCode;
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int32_t mMetaState;
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int32_t mRepeatCount;
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nsecs_t mDownTime;
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nsecs_t mEventTime;
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};
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/*
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* Motion events.
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*/
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class MotionEvent : public InputEvent {
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public:
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virtual ~MotionEvent() { }
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virtual int32_t getType() const { return AINPUT_EVENT_TYPE_MOTION; }
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inline int32_t getAction() const { return mAction; }
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inline int32_t getActionMasked() const { return mAction & AMOTION_EVENT_ACTION_MASK; }
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inline int32_t getActionIndex() const {
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return (mAction & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK)
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>> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
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}
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inline void setAction(int32_t action) { mAction = action; }
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inline int32_t getFlags() const { return mFlags; }
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inline void setFlags(int32_t flags) { mFlags = flags; }
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inline int32_t getEdgeFlags() const { return mEdgeFlags; }
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inline void setEdgeFlags(int32_t edgeFlags) { mEdgeFlags = edgeFlags; }
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inline int32_t getMetaState() const { return mMetaState; }
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inline void setMetaState(int32_t metaState) { mMetaState = metaState; }
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inline int32_t getButtonState() const { return mButtonState; }
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inline float getXOffset() const { return mXOffset; }
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inline float getYOffset() const { return mYOffset; }
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inline float getXPrecision() const { return mXPrecision; }
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inline float getYPrecision() const { return mYPrecision; }
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inline nsecs_t getDownTime() const { return mDownTime; }
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inline void setDownTime(nsecs_t downTime) { mDownTime = downTime; }
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inline size_t getPointerCount() const { return mPointerProperties.size(); }
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inline const PointerProperties* getPointerProperties(size_t pointerIndex) const {
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return &mPointerProperties[pointerIndex];
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}
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inline int32_t getPointerId(size_t pointerIndex) const {
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return mPointerProperties[pointerIndex].id;
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}
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inline int32_t getToolType(size_t pointerIndex) const {
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return mPointerProperties[pointerIndex].toolType;
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}
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inline nsecs_t getEventTime() const { return mSampleEventTimes[getHistorySize()]; }
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const PointerCoords* getRawPointerCoords(size_t pointerIndex) const;
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float getRawAxisValue(int32_t axis, size_t pointerIndex) const;
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inline float getRawX(size_t pointerIndex) const {
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return getRawAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
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}
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inline float getRawY(size_t pointerIndex) const {
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return getRawAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
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}
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float getAxisValue(int32_t axis, size_t pointerIndex) const;
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inline float getX(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_X, pointerIndex);
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}
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inline float getY(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_Y, pointerIndex);
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}
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inline float getPressure(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_PRESSURE, pointerIndex);
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}
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inline float getSize(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_SIZE, pointerIndex);
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}
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inline float getTouchMajor(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex);
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}
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inline float getTouchMinor(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex);
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}
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inline float getToolMajor(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex);
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}
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inline float getToolMinor(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex);
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}
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inline float getOrientation(size_t pointerIndex) const {
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return getAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex);
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}
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inline size_t getHistorySize() const { return mSampleEventTimes.size() - 1; }
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inline nsecs_t getHistoricalEventTime(size_t historicalIndex) const {
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return mSampleEventTimes[historicalIndex];
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}
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const PointerCoords* getHistoricalRawPointerCoords(
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size_t pointerIndex, size_t historicalIndex) const;
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float getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,
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size_t historicalIndex) const;
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inline float getHistoricalRawX(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalRawAxisValue(
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AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
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}
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inline float getHistoricalRawY(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalRawAxisValue(
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AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
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}
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float getHistoricalAxisValue(int32_t axis, size_t pointerIndex, size_t historicalIndex) const;
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inline float getHistoricalX(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_X, pointerIndex, historicalIndex);
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}
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inline float getHistoricalY(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_Y, pointerIndex, historicalIndex);
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}
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inline float getHistoricalPressure(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_PRESSURE, pointerIndex, historicalIndex);
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}
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inline float getHistoricalSize(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_SIZE, pointerIndex, historicalIndex);
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}
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inline float getHistoricalTouchMajor(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_TOUCH_MAJOR, pointerIndex, historicalIndex);
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}
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inline float getHistoricalTouchMinor(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_TOUCH_MINOR, pointerIndex, historicalIndex);
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}
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inline float getHistoricalToolMajor(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_TOOL_MAJOR, pointerIndex, historicalIndex);
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}
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inline float getHistoricalToolMinor(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_TOOL_MINOR, pointerIndex, historicalIndex);
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}
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inline float getHistoricalOrientation(size_t pointerIndex, size_t historicalIndex) const {
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return getHistoricalAxisValue(
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AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex, historicalIndex);
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}
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ssize_t findPointerIndex(int32_t pointerId) const;
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void initialize(
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int32_t deviceId,
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int32_t source,
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int32_t action,
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int32_t flags,
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int32_t edgeFlags,
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int32_t metaState,
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int32_t buttonState,
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float xOffset,
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float yOffset,
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float xPrecision,
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float yPrecision,
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nsecs_t downTime,
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nsecs_t eventTime,
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size_t pointerCount,
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const PointerProperties* pointerProperties,
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const PointerCoords* pointerCoords);
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void copyFrom(const MotionEvent* other, bool keepHistory);
|
|
|
|
void addSample(
|
|
nsecs_t eventTime,
|
|
const PointerCoords* pointerCoords);
|
|
|
|
void offsetLocation(float xOffset, float yOffset);
|
|
|
|
void scale(float scaleFactor);
|
|
|
|
// Apply 3x3 perspective matrix transformation.
|
|
// Matrix is in row-major form and compatible with SkMatrix.
|
|
void transform(const float matrix[9]);
|
|
|
|
#ifdef HAVE_ANDROID_OS
|
|
status_t readFromParcel(Parcel* parcel);
|
|
status_t writeToParcel(Parcel* parcel) const;
|
|
#endif
|
|
|
|
static bool isTouchEvent(int32_t source, int32_t action);
|
|
inline bool isTouchEvent() const {
|
|
return isTouchEvent(mSource, mAction);
|
|
}
|
|
|
|
// Low-level accessors.
|
|
inline const PointerProperties* getPointerProperties() const {
|
|
return mPointerProperties.array();
|
|
}
|
|
inline const nsecs_t* getSampleEventTimes() const { return mSampleEventTimes.array(); }
|
|
inline const PointerCoords* getSamplePointerCoords() const {
|
|
return mSamplePointerCoords.array();
|
|
}
|
|
|
|
static const char* getLabel(int32_t axis);
|
|
static int32_t getAxisFromLabel(const char* label);
|
|
|
|
protected:
|
|
int32_t mAction;
|
|
int32_t mFlags;
|
|
int32_t mEdgeFlags;
|
|
int32_t mMetaState;
|
|
int32_t mButtonState;
|
|
float mXOffset;
|
|
float mYOffset;
|
|
float mXPrecision;
|
|
float mYPrecision;
|
|
nsecs_t mDownTime;
|
|
Vector<PointerProperties> mPointerProperties;
|
|
Vector<nsecs_t> mSampleEventTimes;
|
|
Vector<PointerCoords> mSamplePointerCoords;
|
|
};
|
|
|
|
/*
|
|
* Input event factory.
|
|
*/
|
|
class InputEventFactoryInterface {
|
|
protected:
|
|
virtual ~InputEventFactoryInterface() { }
|
|
|
|
public:
|
|
InputEventFactoryInterface() { }
|
|
|
|
virtual KeyEvent* createKeyEvent() = 0;
|
|
virtual MotionEvent* createMotionEvent() = 0;
|
|
};
|
|
|
|
/*
|
|
* A simple input event factory implementation that uses a single preallocated instance
|
|
* of each type of input event that are reused for each request.
|
|
*/
|
|
class PreallocatedInputEventFactory : public InputEventFactoryInterface {
|
|
public:
|
|
PreallocatedInputEventFactory() { }
|
|
virtual ~PreallocatedInputEventFactory() { }
|
|
|
|
virtual KeyEvent* createKeyEvent() { return & mKeyEvent; }
|
|
virtual MotionEvent* createMotionEvent() { return & mMotionEvent; }
|
|
|
|
private:
|
|
KeyEvent mKeyEvent;
|
|
MotionEvent mMotionEvent;
|
|
};
|
|
|
|
/*
|
|
* An input event factory implementation that maintains a pool of input events.
|
|
*/
|
|
class PooledInputEventFactory : public InputEventFactoryInterface {
|
|
public:
|
|
PooledInputEventFactory(size_t maxPoolSize = 20);
|
|
virtual ~PooledInputEventFactory();
|
|
|
|
virtual KeyEvent* createKeyEvent();
|
|
virtual MotionEvent* createMotionEvent();
|
|
|
|
void recycle(InputEvent* event);
|
|
|
|
private:
|
|
const size_t mMaxPoolSize;
|
|
|
|
Vector<KeyEvent*> mKeyEventPool;
|
|
Vector<MotionEvent*> mMotionEventPool;
|
|
};
|
|
|
|
} // namespace android
|
|
|
|
#endif // _LIBINPUT_INPUT_H
|