Move input library code from frameworks/base.
Change-Id: I4983db61b53e28479fc90d9211fafff68f7f49a6
diff --git a/include/input/KeyLayoutMap.h b/include/input/KeyLayoutMap.h
new file mode 100644
index 0000000..eec11cf
--- /dev/null
+++ b/include/input/KeyLayoutMap.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LIBINPUT_KEY_LAYOUT_MAP_H
+#define _LIBINPUT_KEY_LAYOUT_MAP_H
+
+#include <stdint.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Tokenizer.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct AxisInfo {
+ enum Mode {
+ // Axis value is reported directly.
+ MODE_NORMAL = 0,
+ // Axis value should be inverted before reporting.
+ MODE_INVERT = 1,
+ // Axis value should be split into two axes
+ MODE_SPLIT = 2,
+ };
+
+ // Axis mode.
+ Mode mode;
+
+ // Axis id.
+ // When split, this is the axis used for values smaller than the split position.
+ int32_t axis;
+
+ // When split, this is the axis used for values after higher than the split position.
+ int32_t highAxis;
+
+ // The split value, or 0 if not split.
+ int32_t splitValue;
+
+ // The flat value, or -1 if none.
+ int32_t flatOverride;
+
+ AxisInfo() : mode(MODE_NORMAL), axis(-1), highAxis(-1), splitValue(0), flatOverride(-1) {
+ }
+};
+
+/**
+ * Describes a mapping from keyboard scan codes and joystick axes to Android key codes and axes.
+ *
+ * This object is immutable after it has been loaded.
+ */
+class KeyLayoutMap : public RefBase {
+public:
+ static status_t load(const String8& filename, sp<KeyLayoutMap>* outMap);
+
+ status_t mapKey(int32_t scanCode, int32_t usageCode,
+ int32_t* outKeyCode, uint32_t* outFlags) const;
+ status_t findScanCodesForKey(int32_t keyCode, Vector<int32_t>* outScanCodes) const;
+
+ status_t mapAxis(int32_t scanCode, AxisInfo* outAxisInfo) const;
+
+protected:
+ virtual ~KeyLayoutMap();
+
+private:
+ struct Key {
+ int32_t keyCode;
+ uint32_t flags;
+ };
+
+ KeyedVector<int32_t, Key> mKeysByScanCode;
+ KeyedVector<int32_t, Key> mKeysByUsageCode;
+ KeyedVector<int32_t, AxisInfo> mAxes;
+
+ KeyLayoutMap();
+
+ const Key* getKey(int32_t scanCode, int32_t usageCode) const;
+
+ class Parser {
+ KeyLayoutMap* mMap;
+ Tokenizer* mTokenizer;
+
+ public:
+ Parser(KeyLayoutMap* map, Tokenizer* tokenizer);
+ ~Parser();
+ status_t parse();
+
+ private:
+ status_t parseKey();
+ status_t parseAxis();
+ };
+};
+
+} // namespace android
+
+#endif // _LIBINPUT_KEY_LAYOUT_MAP_H