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
82 lines
2.0 KiB
C++
82 lines
2.0 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 _ANDROIDFW_VIRTUAL_KEY_MAP_H
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#define _ANDROIDFW_VIRTUAL_KEY_MAP_H
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#include <stdint.h>
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#include <androidfw/Input.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/String8.h>
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#include <utils/Unicode.h>
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namespace android {
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/* Describes a virtual key. */
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struct VirtualKeyDefinition {
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int32_t scanCode;
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// configured position data, specified in display coords
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int32_t centerX;
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int32_t centerY;
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int32_t width;
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int32_t height;
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};
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/**
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* Describes a collection of virtual keys on a touch screen in terms of
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* virtual scan codes and hit rectangles.
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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 VirtualKeyMap {
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public:
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~VirtualKeyMap();
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static status_t load(const String8& filename, VirtualKeyMap** outMap);
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inline const Vector<VirtualKeyDefinition>& getVirtualKeys() const {
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return mVirtualKeys;
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}
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private:
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class Parser {
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VirtualKeyMap* mMap;
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Tokenizer* mTokenizer;
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public:
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Parser(VirtualKeyMap* map, Tokenizer* tokenizer);
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~Parser();
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status_t parse();
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private:
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bool consumeFieldDelimiterAndSkipWhitespace();
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bool parseNextIntField(int32_t* outValue);
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};
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Vector<VirtualKeyDefinition> mVirtualKeys;
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VirtualKeyMap();
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};
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} // namespace android
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#endif // _ANDROIDFW_KEY_CHARACTER_MAP_H
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