6a817e22e4
Added new key maps for external keyboards. These maps are intended to be shared across devices by inheriting the "keyboards.mk" product makefile as part of the device's product definition. One of the trickier changes here was to unwind some code in MetaKeyKeyListener that assumed that only the low 8 bits of the meta key state were actually used. The new code abandons bitshifts in favor of simple conditionals that are probably easier to read anyways. The special meta key state constants used by MetaKeyKeyListener are now (@hide) defined in KeyEvent now so as to make it clearer that they share the same code space even if those codes are not valid for KeyEvents. The EventHub now takes care of detecting the appropriate key layout map and key character map when the device is added and sets system properties accordingly. This avoids having duplicate code in KeyCharacterMap to probe for the appropriate key character map although the current probing mechanism has been preserved for legacy reasons just in case. Added support for tracking caps lock, num lock and scroll lock and turning their corresponding LEDs on and off as needed. The key character map format will need to be updated to correctly support PC style external keyboard semantics related to modifier keys. That will come in a later change so caps lock doesn't actually do anything right now except turn the shiny LEDs on and off... Added a list of symbolic key names to KeyEvent and improved the toString() output for debug diagnosis. Having this list in a central place in the framework also allows us to remove it from Monkey so there is one less thing to maintain when we add new keycodes. Bug: 2912307 Change-Id: If8c25e8d50a7c29bbf5d663c94284f5f86de5da4
479 lines
14 KiB
C++
479 lines
14 KiB
C++
/*
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* Copyright (C) 2005 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 ANDROID_STRING8_H
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#define ANDROID_STRING8_H
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#include <utils/Errors.h>
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// Need this for the char16_t type; String8.h should not
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// be depedent on the String16 class.
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#include <utils/String16.h>
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#include <stdint.h>
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#include <string.h>
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#include <sys/types.h>
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// ---------------------------------------------------------------------------
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extern "C" {
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typedef uint32_t char32_t;
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size_t strlen32(const char32_t *);
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size_t strnlen32(const char32_t *, size_t);
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/*
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* Returns the length of "src" when "src" is valid UTF-8 string.
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* Returns 0 if src is NULL, 0-length string or non UTF-8 string.
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* This function should be used to determine whether "src" is valid UTF-8
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* characters with valid unicode codepoints. "src" must be null-terminated.
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*
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* If you are going to use other GetUtf... functions defined in this header
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* with string which may not be valid UTF-8 with valid codepoint (form 0 to
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* 0x10FFFF), you should use this function before calling others, since the
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* other functions do not check whether the string is valid UTF-8 or not.
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*
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* If you do not care whether "src" is valid UTF-8 or not, you should use
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* strlen() as usual, which should be much faster.
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*/
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size_t utf8_length(const char *src);
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/*
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* Returns the UTF-32 length of "src".
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*/
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size_t utf32_length(const char *src, size_t src_len);
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/*
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* Returns the UTF-8 length of "src".
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*/
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size_t utf8_length_from_utf16(const char16_t *src, size_t src_len);
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/*
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* Returns the UTF-8 length of "src".
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*/
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size_t utf8_length_from_utf32(const char32_t *src, size_t src_len);
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/*
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* Returns the unicode value at "index".
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* Returns -1 when the index is invalid (equals to or more than "src_len").
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* If returned value is positive, it is able to be converted to char32_t, which
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* is unsigned. Then, if "next_index" is not NULL, the next index to be used is
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* stored in "next_index". "next_index" can be NULL.
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*/
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int32_t utf32_at(const char *src, size_t src_len,
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size_t index, size_t *next_index);
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/*
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* Stores a UTF-32 string converted from "src" in "dst", if "dst_length" is not
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* large enough to store the string, the part of the "src" string is stored
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* into "dst".
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* Returns the size actually used for storing the string.
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* "dst" is not null-terminated when dst_len is fully used (like strncpy).
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*/
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size_t utf8_to_utf32(const char* src, size_t src_len,
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char32_t* dst, size_t dst_len);
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/*
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* Stores a UTF-8 string converted from "src" in "dst", if "dst_length" is not
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* large enough to store the string, the part of the "src" string is stored
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* into "dst" as much as possible. See the examples for more detail.
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* Returns the size actually used for storing the string.
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* dst" is not null-terminated when dst_len is fully used (like strncpy).
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*
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* Example 1
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* "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
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* "src_len" == 2
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* "dst_len" >= 7
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* ->
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* Returned value == 6
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* "dst" becomes \xE3\x81\x82\xE3\x81\x84\0
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* (note that "dst" is null-terminated)
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*
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* Example 2
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* "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
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* "src_len" == 2
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* "dst_len" == 5
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* ->
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* Returned value == 3
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* "dst" becomes \xE3\x81\x82\0
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* (note that "dst" is null-terminated, but \u3044 is not stored in "dst"
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* since "dst" does not have enough size to store the character)
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*
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* Example 3
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* "src" == \u3042\u3044 (\xE3\x81\x82\xE3\x81\x84)
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* "src_len" == 2
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* "dst_len" == 6
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* ->
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* Returned value == 6
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* "dst" becomes \xE3\x81\x82\xE3\x81\x84
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* (note that "dst" is NOT null-terminated, like strncpy)
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*/
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size_t utf32_to_utf8(const char32_t* src, size_t src_len,
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char* dst, size_t dst_len);
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size_t utf16_to_utf8(const char16_t* src, size_t src_len,
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char* dst, size_t dst_len);
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}
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// ---------------------------------------------------------------------------
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namespace android {
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class TextOutput;
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//! This is a string holding UTF-8 characters. Does not allow the value more
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// than 0x10FFFF, which is not valid unicode codepoint.
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class String8
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{
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public:
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String8();
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String8(const String8& o);
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explicit String8(const char* o);
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explicit String8(const char* o, size_t numChars);
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explicit String8(const String16& o);
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explicit String8(const char16_t* o);
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explicit String8(const char16_t* o, size_t numChars);
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explicit String8(const char32_t* o);
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explicit String8(const char32_t* o, size_t numChars);
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~String8();
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inline const char* string() const;
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inline size_t size() const;
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inline size_t length() const;
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inline size_t bytes() const;
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inline bool isEmpty() const;
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inline const SharedBuffer* sharedBuffer() const;
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void clear();
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void setTo(const String8& other);
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status_t setTo(const char* other);
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status_t setTo(const char* other, size_t numChars);
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status_t setTo(const char16_t* other, size_t numChars);
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status_t setTo(const char32_t* other,
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size_t length);
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status_t append(const String8& other);
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status_t append(const char* other);
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status_t append(const char* other, size_t numChars);
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status_t appendFormat(const char* fmt, ...)
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__attribute__((format (printf, 2, 3)));
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// Note that this function takes O(N) time to calculate the value.
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// No cache value is stored.
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size_t getUtf32Length() const;
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int32_t getUtf32At(size_t index,
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size_t *next_index) const;
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size_t getUtf32(char32_t* dst, size_t dst_len) const;
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inline String8& operator=(const String8& other);
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inline String8& operator=(const char* other);
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inline String8& operator+=(const String8& other);
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inline String8 operator+(const String8& other) const;
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inline String8& operator+=(const char* other);
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inline String8 operator+(const char* other) const;
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inline int compare(const String8& other) const;
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inline bool operator<(const String8& other) const;
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inline bool operator<=(const String8& other) const;
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inline bool operator==(const String8& other) const;
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inline bool operator!=(const String8& other) const;
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inline bool operator>=(const String8& other) const;
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inline bool operator>(const String8& other) const;
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inline bool operator<(const char* other) const;
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inline bool operator<=(const char* other) const;
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inline bool operator==(const char* other) const;
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inline bool operator!=(const char* other) const;
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inline bool operator>=(const char* other) const;
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inline bool operator>(const char* other) const;
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inline operator const char*() const;
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char* lockBuffer(size_t size);
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void unlockBuffer();
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status_t unlockBuffer(size_t size);
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// return the index of the first byte of other in this at or after
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// start, or -1 if not found
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ssize_t find(const char* other, size_t start = 0) const;
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void toLower();
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void toLower(size_t start, size_t numChars);
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void toUpper();
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void toUpper(size_t start, size_t numChars);
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/*
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* These methods operate on the string as if it were a path name.
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*/
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/*
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* Set the filename field to a specific value.
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*
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* Normalizes the filename, removing a trailing '/' if present.
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*/
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void setPathName(const char* name);
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void setPathName(const char* name, size_t numChars);
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/*
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* Get just the filename component.
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*
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* "/tmp/foo/bar.c" --> "bar.c"
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*/
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String8 getPathLeaf(void) const;
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/*
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* Remove the last (file name) component, leaving just the directory
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* name.
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*
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* "/tmp/foo/bar.c" --> "/tmp/foo"
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* "/tmp" --> "" // ????? shouldn't this be "/" ???? XXX
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* "bar.c" --> ""
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*/
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String8 getPathDir(void) const;
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/*
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* Retrieve the front (root dir) component. Optionally also return the
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* remaining components.
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*
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* "/tmp/foo/bar.c" --> "tmp" (remain = "foo/bar.c")
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* "/tmp" --> "tmp" (remain = "")
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* "bar.c" --> "bar.c" (remain = "")
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*/
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String8 walkPath(String8* outRemains = NULL) const;
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/*
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* Return the filename extension. This is the last '.' and up to
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* four characters that follow it. The '.' is included in case we
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* decide to expand our definition of what constitutes an extension.
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*
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* "/tmp/foo/bar.c" --> ".c"
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* "/tmp" --> ""
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* "/tmp/foo.bar/baz" --> ""
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* "foo.jpeg" --> ".jpeg"
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* "foo." --> ""
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*/
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String8 getPathExtension(void) const;
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/*
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* Return the path without the extension. Rules for what constitutes
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* an extension are described in the comment for getPathExtension().
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*
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* "/tmp/foo/bar.c" --> "/tmp/foo/bar"
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*/
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String8 getBasePath(void) const;
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/*
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* Add a component to the pathname. We guarantee that there is
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* exactly one path separator between the old path and the new.
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* If there is no existing name, we just copy the new name in.
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*
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* If leaf is a fully qualified path (i.e. starts with '/', it
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* replaces whatever was there before.
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*/
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String8& appendPath(const char* leaf);
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String8& appendPath(const String8& leaf) { return appendPath(leaf.string()); }
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/*
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* Like appendPath(), but does not affect this string. Returns a new one instead.
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*/
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String8 appendPathCopy(const char* leaf) const
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{ String8 p(*this); p.appendPath(leaf); return p; }
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String8 appendPathCopy(const String8& leaf) const { return appendPathCopy(leaf.string()); }
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/*
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* Converts all separators in this string to /, the default path separator.
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*
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* If the default OS separator is backslash, this converts all
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* backslashes to slashes, in-place. Otherwise it does nothing.
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* Returns self.
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*/
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String8& convertToResPath();
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private:
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status_t real_append(const char* other, size_t numChars);
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char* find_extension(void) const;
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const char* mString;
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};
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TextOutput& operator<<(TextOutput& to, const String16& val);
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// ---------------------------------------------------------------------------
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// No user servicable parts below.
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inline int compare_type(const String8& lhs, const String8& rhs)
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{
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return lhs.compare(rhs);
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}
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inline int strictly_order_type(const String8& lhs, const String8& rhs)
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{
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return compare_type(lhs, rhs) < 0;
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}
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inline const char* String8::string() const
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{
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return mString;
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}
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inline size_t String8::length() const
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{
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return SharedBuffer::sizeFromData(mString)-1;
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}
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inline size_t String8::size() const
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{
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return length();
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}
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inline bool String8::isEmpty() const
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{
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return length() == 0;
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}
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inline size_t String8::bytes() const
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{
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return SharedBuffer::sizeFromData(mString)-1;
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}
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inline const SharedBuffer* String8::sharedBuffer() const
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{
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return SharedBuffer::bufferFromData(mString);
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}
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inline String8& String8::operator=(const String8& other)
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{
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setTo(other);
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return *this;
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}
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inline String8& String8::operator=(const char* other)
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{
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setTo(other);
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return *this;
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}
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inline String8& String8::operator+=(const String8& other)
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{
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append(other);
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return *this;
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}
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inline String8 String8::operator+(const String8& other) const
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{
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String8 tmp(*this);
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tmp += other;
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return tmp;
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}
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inline String8& String8::operator+=(const char* other)
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{
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append(other);
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return *this;
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}
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inline String8 String8::operator+(const char* other) const
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{
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String8 tmp(*this);
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tmp += other;
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return tmp;
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}
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inline int String8::compare(const String8& other) const
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{
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return strcmp(mString, other.mString);
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}
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inline bool String8::operator<(const String8& other) const
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{
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return strcmp(mString, other.mString) < 0;
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}
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inline bool String8::operator<=(const String8& other) const
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{
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return strcmp(mString, other.mString) <= 0;
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}
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inline bool String8::operator==(const String8& other) const
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{
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return strcmp(mString, other.mString) == 0;
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}
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inline bool String8::operator!=(const String8& other) const
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{
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return strcmp(mString, other.mString) != 0;
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}
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inline bool String8::operator>=(const String8& other) const
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{
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return strcmp(mString, other.mString) >= 0;
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}
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inline bool String8::operator>(const String8& other) const
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{
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return strcmp(mString, other.mString) > 0;
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}
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inline bool String8::operator<(const char* other) const
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{
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return strcmp(mString, other) < 0;
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}
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inline bool String8::operator<=(const char* other) const
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{
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return strcmp(mString, other) <= 0;
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}
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inline bool String8::operator==(const char* other) const
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{
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return strcmp(mString, other) == 0;
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}
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inline bool String8::operator!=(const char* other) const
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{
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return strcmp(mString, other) != 0;
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}
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inline bool String8::operator>=(const char* other) const
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{
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return strcmp(mString, other) >= 0;
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}
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inline bool String8::operator>(const char* other) const
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{
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return strcmp(mString, other) > 0;
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}
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inline String8::operator const char*() const
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{
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return mString;
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}
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} // namespace android
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// ---------------------------------------------------------------------------
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#endif // ANDROID_STRING8_H
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