9f25b7fdf2
Instead of each application loading the KeyCharacterMap from the file system, get them from the input manager service as part of the InputDevice object. Refactored InputManager to be a proper singleton instead of having a bunch of static methods. InputManager now maintains a cache of all InputDevice objects that it has loaded. Currently we never invalidate the cache which can cause InputDevice to return stale motion ranges if the device is reconfigured. This will be fixed in a future change. Added a fake InputDevice with ID -1 to represent the virtual keyboard. Change-Id: If7a695839ad0972317a5aab89e9d1e42ace28eb7
104 lines
2.6 KiB
C++
104 lines
2.6 KiB
C++
/*
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* Copyright (C) 2008 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 _ANDROIDFW_KEY_LAYOUT_MAP_H
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#define _ANDROIDFW_KEY_LAYOUT_MAP_H
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#include <stdint.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/Tokenizer.h>
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#include <utils/RefBase.h>
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namespace android {
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struct AxisInfo {
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enum Mode {
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// Axis value is reported directly.
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MODE_NORMAL = 0,
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// Axis value should be inverted before reporting.
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MODE_INVERT = 1,
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// Axis value should be split into two axes
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MODE_SPLIT = 2,
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};
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// Axis mode.
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Mode mode;
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// Axis id.
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// When split, this is the axis used for values smaller than the split position.
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int32_t axis;
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// When split, this is the axis used for values after higher than the split position.
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int32_t highAxis;
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// The split value, or 0 if not split.
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int32_t splitValue;
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// The flat value, or -1 if none.
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int32_t flatOverride;
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AxisInfo() : mode(MODE_NORMAL), axis(-1), highAxis(-1), splitValue(0), flatOverride(-1) {
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}
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};
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/**
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* Describes a mapping from keyboard scan codes and joystick axes to Android key codes and axes.
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*
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* This object is immutable after it has been loaded.
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*/
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class KeyLayoutMap : public RefBase {
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public:
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static status_t load(const String8& filename, sp<KeyLayoutMap>* outMap);
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status_t mapKey(int32_t scanCode, int32_t* keyCode, uint32_t* flags) const;
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status_t findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const;
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status_t mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const;
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protected:
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virtual ~KeyLayoutMap();
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private:
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struct Key {
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int32_t keyCode;
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uint32_t flags;
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};
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KeyedVector<int32_t, Key> mKeys;
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KeyedVector<int32_t, AxisInfo> mAxes;
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KeyLayoutMap();
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class Parser {
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KeyLayoutMap* mMap;
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Tokenizer* mTokenizer;
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public:
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Parser(KeyLayoutMap* map, Tokenizer* tokenizer);
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~Parser();
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status_t parse();
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private:
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status_t parseKey();
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status_t parseAxis();
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};
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};
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} // namespace android
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#endif // _ANDROIDFW_KEY_LAYOUT_MAP_H
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